WO2016000179A1 - 室内定位的方法和装置 - Google Patents

室内定位的方法和装置 Download PDF

Info

Publication number
WO2016000179A1
WO2016000179A1 PCT/CN2014/081284 CN2014081284W WO2016000179A1 WO 2016000179 A1 WO2016000179 A1 WO 2016000179A1 CN 2014081284 W CN2014081284 W CN 2014081284W WO 2016000179 A1 WO2016000179 A1 WO 2016000179A1
Authority
WO
WIPO (PCT)
Prior art keywords
grid
layer
outdoor
room
signal strength
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2014/081284
Other languages
English (en)
French (fr)
Inventor
罗新龙
王耀辉
孙启明
郭宽新
李汐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to KR1020157022815A priority Critical patent/KR101846831B1/ko
Priority to PCT/CN2014/081284 priority patent/WO2016000179A1/zh
Priority to EP14880376.0A priority patent/EP2990830B1/en
Priority to CN201480079612.2A priority patent/CN106415316B/zh
Priority to CN201910607707.1A priority patent/CN110430535B/zh
Priority to US14/983,116 priority patent/US9462424B2/en
Publication of WO2016000179A1 publication Critical patent/WO2016000179A1/zh
Priority to US15/258,989 priority patent/US9906923B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0252Radio frequency fingerprinting
    • G01S5/02521Radio frequency fingerprinting using a radio-map
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0252Radio frequency fingerprinting
    • G01S5/02528Simulating radio frequency fingerprints
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18Network planning tools
    • H04W16/20Network planning tools for indoor coverage or short range network deployment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/33Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings

Definitions

  • Embodiments of the present invention relate to the field of communications technologies and, more particularly, to methods and apparatus for indoor positioning. Background technique
  • the current positioning technology is generally 2D (Two Dimensions) positioning in the outdoor horizontal dimension.
  • Common methods include feature matching based on wireless signal characteristics and hyperbolic method based on time delay.
  • Traditional 2D positioning based on wireless communication signals cannot distinguish between indoor and outdoor users, and it is impossible for indoor users to perform high-dimensional positioning.
  • industry statistics show that more than 70% of voice services and more than 80% of data services occur indoors, so it is important to locate users indoors.
  • Wi-Fi indoor positioning uses the navigation satellite to locate the terminal position. Because the indoor environment will block and attenuate the GPS signal, indoor positioning cannot be performed. Some common indoor positioning methods, such as Wi-Fi indoor 3D positioning, use multiple Wi-Fi access points deployed indoors to locate user locations. The main disadvantage of Wi-Fi indoor positioning is that the scene adaptability is poor. Only the buildings and floors where Wi-Fi is deployed can be positioned accordingly. In reality, most buildings or some floors of buildings do not have Wi-Fi deployed. These scenes cannot be used for indoor 3D positioning with Wi-Fi.
  • Embodiments of the present invention provide a method and apparatus for indoor positioning, which can determine a horizontal position where a terminal to be located is located indoors and a height at which the terminal is located, thereby achieving high-precision indoor 3D positioning.
  • a method of indoor positioning which includes: Obtaining current cell signal strength information of the terminal in the indoor;
  • the indoor 3D positioning matching information includes a cell signal of the indoor grid Correspondence between the intensity information and the horizontal position information and the height information of the grid in the room;
  • the horizontal position information includes position information of the first direction and the second direction, and the first direction and the second direction are two directions perpendicular to each other in a horizontal plane.
  • the cell signal strength information of the indoor grid is determined by the following steps:
  • n-th grid corresponding to the nth floor grid of the room according to horizontal position information of the nth floor grid in the room, where n is an integer greater than or equal to 1;
  • the cell signal strength information of the grid of the nth layer in the room is determined based on the cell signal strength information of the nth floor grid of the outdoor corresponding to the grid of the nth floor in the room.
  • Determining cell signal strength information of a grid of the nth layer in the indoor according to the cell signal strength information of the outdoor nth layer grid corresponding to the grid of the nth layer in the indoor Includes:
  • a third possible implementation in the first aspect when the grid of the nth layer in the room is a non-edge grid of the nth layer in the room, the horizontal position information of the grid according to the nth layer in the room is determined and the indoor
  • the grid of the nth layer corresponding to the nth layer of the grid includes:
  • first outdoor grid and a second outdoor grid Determining a first outdoor grid and a second outdoor grid, wherein the first outdoor grid and the second outdoor grid are both an outdoor n-th grid, wherein the first outdoor grid and the a relative positional relationship of the second outdoor grid, and an edge grid of the nth layer of the room corresponding to the non-edge grid of the nth layer in the room and a non-edge of the nth layer of the room.
  • the relative positional relationship of the grids is uniform, and the environmental correlation of the first outdoor grid and the environment of the nth layer of the indoor grid corresponding to the non-edge grid of the nth layer in the chamber
  • the relative positional relationship of the first outdoor grid and the second outdoor grid is based on horizontal position information of the first outdoor grid and horizontal position information of the second outdoor grid.
  • Determining cell signal strength information of a grid of the nth layer in the indoor according to the cell signal strength information of the outdoor nth layer grid corresponding to the grid of the nth layer in the indoor Includes:
  • the cell signal strength information of the edge raster of the layer determines the cell signal strength information of the non-edge raster of the nth layer in the indoor.
  • the environmental correlation of the first outdoor grid includes an antenna of the first outdoor grid and a base station a relative positional relationship; the environmental correlation of the edge grid of the nth layer of the room corresponding to the non-edge grid of the nth layer in the chamber includes the nth layer of the room The relative positional relationship between the edge grid of the nth layer of the room corresponding to the non-edge grid and the antenna of the base station.
  • the relative positional relationship between the first outdoor grid and the antenna of the base station is calculated according to the horizontal position information, the height information of the first outdoor grid, and the horizontal position information and height information of the antenna of the base station;
  • the relative positional relationship between the edge grid of the nth layer of the indoor corresponding to the non-edge grid of the nth layer of the indoor and the antenna of the base station is corresponding to the non-edge grid of the nth layer of the indoor.
  • the horizontal position information, the height information of the n-th layer of the indoor floor, the horizontal position information of the antenna of the base station, and the height information are calculated.
  • the acquiring the The cell signal strength information of the outdoor nth layer grid corresponding to the grid of the nth layer in the room includes:
  • the simulated cell signal strength information of the outdoor nth layer grid corresponding to the grid of the nth layer in the indoor, the simulated cell signal strength information of the outdoor first layer grid, and the The cell signal strength information of the grid of the first layer in the outdoor is determined, and the cell signal strength information of the grid of the nth layer in the outdoor corresponding to the grid of the nth layer in the room is determined.
  • the acquiring the The cell signal strength information of the outdoor nth layer grid corresponding to the grid of the nth layer in the room includes:
  • the simulated cell signal strength information of the n-1th layer grid of the outdoor and the simulated cell signal strength information of the outdoor nth layer grid wherein the outdoor The grid of the n-1th layer and the grid of the nth layer of the outdoor are both the grid of the n-1th layer of the outdoor corresponding to the grid of the n-1th layer of the chamber
  • the position information of the first direction and the second direction is the same, the height of the grid of the n-1th layer of the outdoor is equal to the height of the grid of the n-1th layer of the room, and the nth layer of the outdoor The height of the grid is equal to the height of the grid of the nth floor in the room;
  • Determining cell signal strength information of the grid of the n-1th layer of the outdoor The simulated cell signal strength information according to the grid of the n-1th layer of the outdoor, the simulated cell signal strength information of the outdoor nth layer grid, and the cell signal of the outdoor n-1th layer grid
  • the intensity information determines cell signal strength information of the grid of the nth layer in the outdoor.
  • the acquiring the The cell signal strength information of the outdoor nth layer grid corresponding to the grid of the nth layer in the room includes:
  • test data of the outdoor first layer grid corresponding to the grid of the first layer in the room, wherein the test data includes the grid corresponding to the first layer of the room Horizontal position information and cell signal strength information of the outdoor layer 1 grid;
  • the cell signal strength information in the test data after the deletion of the error data is determined as the cell signal strength information of the outdoor layer 1 grid corresponding to the grid of the first floor in the room.
  • the ninth possible implementation manner of the first aspect after the error data in the test data is deleted according to the variation of the cell signal strength and the distance The method further includes:
  • the cell signal strength information in the test data after the deletion of the error data is the cell signal strength information of the outdoor layer 1 grid corresponding to the grid of the first layer in the indoor, including :
  • the cell signal strength information after the smoothing process is a cell signal of the outdoor first layer grid corresponding to the grid of the first layer in the indoor Strength information.
  • the cell signal strength information of the indoor grid is determined by the following steps: Determining, according to horizontal position information of the grid of the p-th floor in the room, a grid of an mth layer or an outer m-th floor of the room corresponding to a grid of the p-th floor in the room;
  • the eleventh possible implementation manner of the first aspect when the grid of the pth layer in the indoor is the edge grid of the pth layer in the room, Determining, according to horizontal position information of the grid of the p-th floor in the room, a grid of the first layer in the room corresponding to the grid of the p-th floor in the room or a grid of the first layer of the outdoor, Includes:
  • the horizontal position information of the edge grid coincides with the horizontal position information of the grid of the p-th floor in the room; the first layer of the room corresponding to the grid corresponding to the p-th floor of the room
  • the cell signal strength information of the grid of the first layer of the grid or the outdoor, determining the cell signal strength information of the grid of the first layer in the indoor includes:
  • the grid of the pth layer in the indoor is a non-edge grid of the pth layer in the room
  • determining, according to horizontal position information of the grid of the p-th floor in the room, a grid of the first layer in the room corresponding to the grid of the p-th floor in the room or a grid of the first layer of the outdoor including:
  • first outdoor grid and a second outdoor grid wherein the first outdoor grid and the second outdoor grid are both outdoor first layer grids, wherein the first outdoor grid and the a relative positional relationship of the second outdoor grid, and an edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor of the room and a non-edge of the p-th floor of the room Relative positional relationship of the grid
  • the environmental correlation of the first outdoor grid is consistent with the environmental correlation of the edge raster of the p-th floor of the indoor corresponding to the non-edge grid of the p-th floor in the room
  • the relative positional relationship between the first outdoor grid and the second outdoor grid is calculated according to the horizontal position information of the first outdoor grid and the horizontal position information of the second outdoor grid; a relative positional relationship between an edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the chamber and a non-edge grid of the p-th floor of the room
  • Determining the p-th floor of the room based on the cell signal strength information of the first layer of the grid corresponding to the grid of the p-th floor in the room or the grid of the first layer of the outdoor Cell signal strength information for the grid including:
  • the cell signal strength information of the edge raster determines the cell signal strength information of the non-edge raster of the p-th floor in the indoor.
  • the environmental correlation of the first outdoor grid includes the first outdoor grid and the base station The relative positional relationship of the antennas; the environmental correlation of the edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the room includes the p-th and the indoor The relative positional relationship between the edge grid of the p-th floor of the room corresponding to the non-edge grid of the layer and the antenna of the base station.
  • the relative positional relationship between the first outdoor grid and the antenna of the base station is according to the first
  • the horizontal position information of the outdoor grid, the height information, and the horizontal position information of the antenna of the base station, and the height information are calculated; the edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor of the room
  • the relative positional relationship between the cell and the antenna of the base station is horizontal position information, height information, and the level of the antenna of the base station according to the edge raster of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the room.
  • the position information and height information are calculated.
  • m is equal to one.
  • the indoor grid The cell signal strength information of the non-edge raster in the middle is determined by the following steps:
  • Determining, according to the engineering parameter information of the antenna of the base station, the simulated cell signal strength of the edge raster of the kth layer in the indoor distance of the non-edge grid of the kth layer in the indoor is determined by simulation calculation Information and simulated cell signal strength information of the non-edge grid of the kth layer in the room;
  • Simulating cell signal strength information of an edge grid of a kth layer in a room having a distance from a non-edge grid of the kth layer in the room that is less than a third threshold, and a non-edge of the kth layer in the room Determining the cell signal strength information of the simulated cell signal strength information of the grid and the edge raster of the kth layer in the indoor distance of the non-edge grid of the kth layer in the indoor is less than the third threshold Cell signal strength information for the non-edge grid of the kth layer in the room.
  • an apparatus for indoor positioning comprising:
  • An acquiring module configured to acquire current cell signal strength information of the terminal in the indoor;
  • the first determining module configured to determine, according to the indoor three-dimensional 3D positioning matching information, an indoor corresponding to the current cell signal strength information acquired by the acquiring module Horizontal position information and height information of the grid, wherein the indoor 3D positioning matching information includes a correspondence relationship between cell signal strength information of the indoor grid and horizontal position information and height information of the grid in the room;
  • a second determining module configured to determine, according to the horizontal position information and height information of the indoor grid corresponding to the current cell signal strength information determined by the first determining module, that the terminal is located in the indoor a horizontal position and a height at which the terminal is located, wherein the horizontal position information includes position information of a first direction and a second direction, wherein the first direction and the second direction are two perpendicular to each other in a horizontal plane direction.
  • the apparatus further includes a third determining module, configured to determine cell signal strength information of the indoor grid, the third determining module includes:
  • a first determining unit configured to determine, according to horizontal position information of the grid of the nth layer in the indoor, a grid of the nth layer of the outdoor corresponding to the grid of the nth layer in the indoor, where n is greater than Or An integer equal to 1;
  • a first acquiring unit configured to acquire cell signal strength information of the nth layer of the outdoor layer corresponding to the grid of the nth layer in the indoor determined by the first determining unit;
  • a second determining unit configured to determine, according to cell signal strength information of the outdoor nth layer grid corresponding to the grid of the nth layer in the indoor, acquired by the first acquiring unit Cell signal strength information for the nth layer of the grid.
  • the first determining unit is specifically configured to:
  • the second determining unit is specifically configured to:
  • the first determining unit is specifically configured to:
  • first outdoor grid and a second outdoor grid Determining a first outdoor grid and a second outdoor grid, wherein the first outdoor grid and the second outdoor grid are both an outdoor n-th grid, wherein the first outdoor grid and the a relative positional relationship of the second outdoor grid, and an edge grid of the nth layer of the room corresponding to the non-edge grid of the nth layer in the room and a non-edge of the nth layer of the room.
  • the relative positional relationship of the grids is uniform, and the environmental correlation of the first outdoor grid and the environment of the nth layer of the indoor grid corresponding to the non-edge grid of the nth layer in the chamber
  • the relative positional relationship of the first outdoor grid and the second outdoor grid is based on horizontal position information of the first outdoor grid and horizontal position information of the second outdoor grid.
  • the relative positional relationship between the edge grid of the nth layer of the room corresponding to the non-edge grid of the nth layer in the room and the non-edge grid of the nth layer of the room Is based on the non-nth floor of the room Calculating the horizontal position information of the edge grid of the nth layer in the room corresponding to the edge grid and the horizontal position information of the non-edge grid of the nth layer in the room;
  • the second determining unit is specifically configured to:
  • the cell signal strength information of the edge raster of the layer determines the cell signal strength information of the non-edge raster of the nth layer in the indoor.
  • the environmental correlation of the first outdoor grid includes an antenna of the first outdoor grid and a base station a relative positional relationship;
  • the environmental correlation of the edge grid of the nth layer of the room corresponding to the non-edge grid of the nth layer in the chamber includes the nth layer of the room The relative positional relationship between the edge grid of the nth layer of the room corresponding to the non-edge grid and the antenna of the base station.
  • the relative positional relationship between the first outdoor grid and the antenna of the base station is according to the first outdoor grid
  • the horizontal position information of the grid, the height information, and the horizontal position information of the antenna of the base station, and the height information are calculated; the edge grid of the nth layer of the indoor corresponding to the non-edge grid of the nth layer in the room
  • the relative positional relationship of the antennas of the base station is horizontal position information, height information, and horizontal position information of the antenna of the base station according to the n-th layer edge grid of the indoor corresponding to the non-edge grid of the nth layer in the room. , height information is calculated.
  • the first acquiring unit when n is greater than 1, the first acquiring unit Specifically used for:
  • the simulated cell signal strength information of the outdoor nth layer grid corresponding to the grid of the nth layer in the indoor, the simulated cell signal strength information of the outdoor first layer grid, and the Decoding the cell signal strength information of the grid of the first layer in the outdoor, and determining the nth of the indoor The cell signal strength information of the grid of the nth layer of the outdoor corresponding to the grid of the layer.
  • the first acquiring unit Specifically used for:
  • the simulated cell signal strength information of the n-1th layer grid of the outdoor and the simulated cell signal strength information of the outdoor nth layer grid wherein the outdoor The grid of the n-1th layer and the grid of the nth layer of the outdoor are both the grid of the n-1th layer of the outdoor corresponding to the grid of the n-1th layer of the chamber
  • the position information of the first direction and the second direction is the same, the height of the grid of the n-1th layer of the outdoor is equal to the height of the grid of the n-1th layer of the room, and the nth layer of the outdoor The height of the grid is equal to the height of the grid of the nth floor in the room;
  • the simulated cell signal strength information according to the grid of the n-1th layer of the outdoor, the simulated cell signal strength information of the outdoor nth layer grid, and the cell signal of the outdoor n-1th layer grid
  • the intensity information determines cell signal strength information of the grid of the nth layer in the outdoor.
  • the first acquiring unit Specifically used for:
  • test data of the outdoor first layer grid corresponding to the grid of the first layer in the room, wherein the test data includes the grid corresponding to the first layer of the room Horizontal position information and cell signal strength information of the outdoor layer 1 grid;
  • the cell signal strength information in the test data after the deletion of the error data is determined as the cell signal strength information of the outdoor layer 1 grid corresponding to the grid of the first floor in the room.
  • the first acquiring unit deletes the test according to a variation of a cell signal strength attenuation with a distance After the error data in the data, the first acquiring unit is further configured to: a cell signal strength information of a plurality of outdoor first layer grids having a distance smaller than a second threshold value from a grid of the first layer of the outdoor layer corresponding to the grid of the first layer in the room, Smoothing the cell signal strength information in the test data after the error data is deleted;
  • the first acquiring unit determines that the cell signal strength information in the test data after the error data is deleted is the cell signal of the outdoor layer 1 grid corresponding to the grid of the first layer in the indoor Strength information, including:
  • the cell signal strength information after the smoothing process is a cell signal of the outdoor first layer grid corresponding to the grid of the first layer in the indoor Strength information.
  • the apparatus further includes a fourth determining module for determining cell signal strength information of the grid in the indoor
  • the fourth determining module includes:
  • a third determining unit configured to determine, according to horizontal position information of the grid of the p-th floor in the room, a grid of the mth layer or an mth layer of the room corresponding to the grid of the p-th floor in the room Grid
  • a second acquiring unit configured to acquire a grid of an mth layer or an outer mth layer of the grid corresponding to the grid of the pth layer in the indoor determined by the third determining unit Cell signal strength information
  • a fourth determining unit configured to: according to the grid of the mth layer of the indoor or the grid of the mth layer of the outdoor corresponding to the grid of the pth layer in the indoor, acquired by the second acquiring unit Cell signal strength information, determining cell signal strength information of a grid of the p-th floor in the indoor, where p is an integer greater than 1, m is a positive integer less than p, and the height of the p-th layer is higher than a ground height .
  • the eleventh possible implementation manner of the second aspect when the grid of the pth layer in the indoor is the edge grid of the pth layer in the room
  • the third determining unit is specifically configured to:
  • the fourth determining unit is specifically configured to:
  • the grid of the pth layer in the indoor is a non-edge grid of the pth layer in the room
  • the third determining unit is specifically configured to:
  • first outdoor grid and a second outdoor grid wherein the first outdoor grid and the second outdoor grid are both outdoor first layer grids, wherein the first outdoor grid and the a relative positional relationship of the second outdoor grid, and an edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor of the room and a non-edge of the p-th floor of the room.
  • the relative positional relationship of the grids is uniform, and the environmental correlation of the first outdoor grid and the environment of the edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the room
  • the relative positional relationship of the first outdoor grid and the second outdoor grid is based on horizontal position information of the first outdoor grid and horizontal position information of the second outdoor grid.
  • the fourth determining unit is specifically configured to:
  • the cell signal strength information of the edge raster determines the cell signal strength information of the non-edge raster of the p-th floor in the indoor.
  • the environmental correlation of the first outdoor grid includes the first outdoor grid and the base station The relative positional relationship of the antennas; the environmental correlation of the edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the room includes the p-th and the indoor The relative positional relationship between the edge grid of the p-th floor of the room corresponding to the non-edge grid of the layer and the antenna of the base station.
  • the relative positional relationship between the first outdoor grid and the antenna of the base station is according to the The horizontal position information of the first outdoor grid, the height information, and the horizontal position information of the antenna of the base station, and the height information are calculated; the non-edge grid of the p-th floor of the room corresponds to the p-th floor of the room.
  • the relative positional relationship between the edge grid and the antenna of the base station is horizontal position information, height information, and antenna of the base station according to the edge grid of the p-th floor of the indoor corresponding to the non-edge grid of the p-th floor in the room.
  • the horizontal position information and height information are calculated.
  • m is equal to one.
  • the apparatus further includes a fifth determining module for determining cell signal strength information of the non-edge grid in the grid in the room,
  • the fifth determining module includes:
  • a fifth determining unit configured to determine, according to the horizontal position information of the non-edge grid of the kth layer in the indoor, the kth layer in the room where the distance from the non-edge grid of the kth layer in the indoor is less than the third threshold
  • the edge grid the distance is calculated according to the horizontal position information of the grid, where k is an integer greater than or equal to 1;
  • a third acquiring unit configured to acquire a cell of the edge grid of the kth layer in the indoor distance of the non-edge grid of the kth layer of the indoor determined by the fifth determining unit Signal strength information;
  • a sixth determining unit configured to determine, according to engineering parameter information of the antenna of the base station, the edge of the kth layer in the indoor distance of the non-edge grid of the kth layer in the indoor is smaller than the third threshold by simulation calculation Simulated cell signal strength information of the grid and simulated cell signal strength information of the non-edge grid of the kth layer in the indoor;
  • a seventh determining unit configured to simulate, according to the edge grid of the kth layer in the room that the distance from the non-edge grid of the kth layer in the indoor is smaller than the third threshold determined by the sixth determining unit.
  • the cell signal strength information, the simulated cell signal strength information of the non-edge grid of the kth layer in the indoor, and the distance obtained by the third acquiring unit from the non-edge grid of the kth layer in the indoor are smaller than
  • the cell signal strength information of the edge raster of the kth layer in the indoor of the third threshold determines the cell signal strength information of the non-edge grid of the kth layer in the indoor.
  • the method and apparatus for indoor positioning determines that the current cell signal strength information of the terminal to be located in the indoor is matched with the cell signal strength information in the indoor three-dimensional 3D positioning matching information. Corresponding indoor grid and its horizontal position information and height information, thereby determining the horizontal position of the terminal in the room and the height of the terminal. High-precision indoor 3D positioning can be achieved.
  • FIG. 1 is a schematic flow chart of a method of indoor positioning according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a method of indoor positioning in accordance with an embodiment of the present invention.
  • Fig. 3 is a view showing the effect of the method of positioning according to an embodiment of the present invention.
  • FIG. 4 is a schematic flow diagram of a method of determining cell signal strength information for a grid within a room, in accordance with one embodiment of the present invention.
  • Figure 5 is a schematic illustration of a method of determining cell signal strength information for a grid within a room, in accordance with one embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a method of determining cell signal strength information for a grid in a room, in accordance with another embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a method of determining cell signal strength information for a grid in a room, in accordance with another embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a method of determining cell signal strength information for a grid in a room, in accordance with another embodiment of the present invention.
  • FIG. 9 is a schematic flow chart of a method of determining cell signal strength information of a grid in a room, in accordance with another embodiment of the present invention.
  • Figure 10 is a diagram of a method of determining cell signal strength information for a grid within a room, in accordance with another embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a method of determining cell signal strength information for a grid in a room, in accordance with yet another embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a method of determining an indoor matching feature library, in accordance with one embodiment of the present invention.
  • Figure 13 is a schematic illustration of a method of determining an indoor matching feature library in accordance with another embodiment of the present invention.
  • 14 is a schematic diagram of a method of determining an indoor matching feature library in accordance with another embodiment of the present invention.
  • 15 is a schematic illustration of a method of indoor positioning in accordance with one embodiment of the present invention.
  • 16 is a schematic block diagram of an apparatus for indoor positioning in accordance with one embodiment of the present invention.
  • Figure 17 is a schematic block diagram of a third determining module in accordance with one embodiment of the present invention.
  • Figure 18 is a schematic block diagram of a fourth determination module in accordance with one embodiment of the present invention.
  • Figure 19 is a schematic block diagram of an apparatus for indoor positioning in accordance with another embodiment of the present invention.
  • Figure 20 is a schematic block diagram of a base station in accordance with one embodiment of the present invention. detailed description
  • a terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, User equipment or User Equipment (UE).
  • the terminal can be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), and a wireless communication function.
  • Handheld device in-vehicle device, computing device, or other processing device connected to a wireless modem.
  • the base station may be used to communicate with a mobile device, and the base station may be a BTS in GSM (Global System of Mobile communication) or CDMA (Code Division Multiple Access).
  • NB NodeB, Base Station
  • Base Transceiver Longband Evolution
  • eNB eNodeB
  • eNodeB Evolved Node B
  • LTE Long Term Evolution
  • relay station or access Point or base station equipment in the future 5G network.
  • the embodiment of the present invention first introduces a specific embodiment of positioning a terminal by matching the current cell signal strength information of the terminal with the cell signal strength information in the indoor 3D positioning information matching information.
  • the method 100 includes: S110. Acquire current cell signal strength information of the terminal that is indoors.
  • the indoor 3D positioning matching information includes the cell signal strength of the indoor grid Correspondence between information and horizontal position information and height information of the grid in the room;
  • S130 Determine a horizontal position of the terminal and a height of the terminal according to the horizontal position information and the height information of the indoor grid corresponding to the current cell signal strength information, where the horizontal location information includes Position information of the first direction and the second direction, the first direction and the second direction being two directions perpendicular to each other in a horizontal plane.
  • obtaining the current cell signal strength information of the terminal may be obtained by using a measurement report (MR) reported by the terminal, or may be obtained by using other channels, which is not limited by the embodiment of the present invention.
  • the currently receivable cell and the cell corresponding to the cell strength of the terminal of the terminal to be located may be extracted as the current cell signal strength information corresponding to the terminal, and used for positioning and matching information stored in the device for indoor positioning.
  • the cell signal strength information in the cell matches.
  • other information of the terminal may be referred to.
  • the positioning device may also refer to the air pressure information to assist in determining the terminal to be located.
  • the height of the embodiment of the present invention is not limited thereto.
  • the current cell signal strength information of the terminal is matched with the cell signal strength information in the indoor 3D positioning matching information, and the corresponding indoor grid and its horizontal position information and height information are determined, and the terminal can be approximated as being located in the indoor The center of the grid.
  • the indoor 3D positioning matching information may include a correspondence between the cell signal strength information and the horizontal position information and the height information of the grid in the room, and may also include other information for matching, such as the air pressure at the grid in the room.
  • the information and the like are matched with the air pressure information in the MR of the terminal to improve the accuracy of the positioning and matching, which is not limited by the embodiment of the present invention.
  • the cell signal strength information in the indoor 3D positioning matching information and the current cell signal strength information of the terminal may be a cell and its corresponding signal strength, or may be multiple cells and signal strengths corresponding to the multiple cells, respectively.
  • the embodiment of the invention is not limited thereto.
  • the indoor 3D positioning matching information may not find a grid that exactly matches the current cell signal strength information of the terminal, but finds multiple grids similar to the current cell signal strength information of the terminal. . In this case, as shown in FIG.
  • multiple grids that the terminal may be located may be numbered 1, 2, 3, 4, ..., and the cell in the current cell signal strength information of the terminal is calculated.
  • the correlation of the cells corresponding to each grid determines the most relevant raster (for example, grid 2) as the location of the user.
  • the indoor 3D positioning matching information may be part of the positioning matching database, and the database may also include some 2D/3D indoor and outdoor test data, which is not limited by the embodiment of the present invention.
  • the indoor grid is divided according to 3D modeling.
  • the shape of the grid can be selected as a square.
  • the grid in the room may be square, and its side length may generally be 5 meters or 10 meters, but the embodiment of the invention is not limited thereto.
  • the horizontal position of the grid in the room refers to a position in the horizontal direction, and the horizontal position information may include position information of the first direction and the second direction, the first direction and the second direction being two perpendicular to each other in the horizontal plane
  • Directions for example, longitude and latitude can generally be taken, and embodiments of the invention do not preclude the possibility of characterizing horizontal positions with more directions.
  • the method for indoor positioning determines the corresponding indoor grid by matching the current cell signal strength information of the terminal to be located indoors with the cell signal strength information in the indoor three-dimensional 3D positioning matching information.
  • the grid and its horizontal position information and height information thereby determining the horizontal position of the terminal in the room and the height of the terminal, can achieve high-precision indoor 3D positioning.
  • the method 100 may further include: determining, according to the current cell signal strength information of the terminal, the 2D positioning matching information, and the 3D GIS (Threee Dimensions Geographic Information System) Located indoors, the 2D positioning matching information includes a correspondence between horizontal location information and cell signal strength information.
  • the 2D positioning matching information includes a correspondence between horizontal location information and cell signal strength information.
  • the 2D positioning technology can be used to perform 2D positioning on the terminal, that is, according to the information included in the MR reported by the terminal, the 2D positioning matching information is used to determine the approximate position of the terminal on the horizontal plane, and the terminal is determined by using the 3D GIS in combination with the location. Whether it is in a certain building.
  • the terminal is indoors, according to the indoor 3D positioning matching information and the terminal corresponding to the building The current cell signal strength information is used to accurately locate the terminal.
  • 2D/3D positioning can be performed on multiple terminals in the outdoor or indoor, and the positioning effect is as shown in FIG. 3 .
  • the latitude and longitude of the terminal may be determined; when the terminal is an indoor terminal, the latitude and longitude and height of the terminal may be determined.
  • the method for positioning provided by the embodiment of the present invention first determines that the terminal is located indoors by using the 2D positioning technology, and then matches the current cell signal strength information of the terminal with the cell signal strength information in the indoor 3D positioning matching information, and determines that the terminal is located.
  • the indoor grid is used to determine the horizontal position and height of the terminal, enabling high-precision indoor 3D positioning.
  • a method for indoor positioning according to an embodiment of the present invention is described in detail above with reference to FIG. 1 to FIG. 3.
  • a method for determining indoor 3D positioning matching information required in the above positioning method will be described in detail with reference to FIG. 4 to FIG.
  • a method for determining cell signal strength information in the indoor 3D positioning matching information will be described in detail with reference to FIG. 4 to FIG.
  • the indoor 3D positioning matching information includes the cell signal strength information, and the corresponding relationship between the horizontal position information and the height information of the indoor grid, and the indoor grid and its horizontal position information and height can be respectively determined. Information, and then determine the cell signal strength information corresponding to each grid.
  • determining the grid of the room and its horizontal position information and height information can be obtained by grid dividing the building.
  • 3D GIS is also called 3D electronic map, which has wide application in user wireless network planning and simulation, and maps contain buildings. , river and other land information.
  • building 3D modeling using the building information extracted from 3D GIS to 3D modeling the building, that is, using the contour information, height information, etc. obtained in the previous step to mark the building on the map.
  • the floor division of the building interior divides the floor of the building 3D model.
  • the indoor grid of the building is divided into grids for each floor of the building by a multiple of 3D GIS resolution or resolution.
  • the core of the embodiment of the present invention is to determine the cell signal strength information of the indoor grid through the cell signal strength information of the corresponding outdoor grid. Therefore, in addition to grid division of the building interior, it is also possible to divide the outdoor first floor and the outdoor space of each floor of the corresponding building into a grid.
  • the floor space of ordinary buildings is roughly 50-60 meters, and there are basically no other buildings in the distance. Obstruction. Therefore, when gridding the outdoor, you can select the distance from the wall around the building as
  • the outdoor area within the range of 50-60 meters that is, the outer layer of the grid of the first floor and the corresponding edge grid of the grid of the first floor of the room have a maximum distance of 50-60 meters.
  • the grid can be divided into an edge raster and a non-edge raster.
  • An edge grid is a grid of interiors that are directly connected to a wall; a non-edge grid is a grid of interiors that are not directly connected to the wall.
  • the indoor grid can generally be selected to be relatively small.
  • the shape of the grid can be selected as a square.
  • the grid in the room may be square
  • the length of the side may be 5 meters, 10 meters, etc.
  • the outdoor grid may also be square
  • the side length may generally be 20 meters, 30 meters, 50 meters, and the like.
  • the method 200 includes:
  • Select a grid to be determined from the grid of the nth floor in the room Determining one or more corresponding to the grid of the nth layer in the room according to the horizontal position information of the grid of the nth floor in the room, or the horizontal position information and the height information combined with the engineering parameters of the antenna of the surrounding base station.
  • the outdoor nth floor grid The information to be referenced when determining the outdoor n-th grid is different depending on the type of raster.
  • the grid of the nth layer corresponding to the outdoor may be determined by referring to the horizontal position of the edge grid of the nth layer in the room;
  • the grid of the nth layer in the room is the non-edge grid of the nth layer in the room
  • Antenna engineering parameters, etc. you can also refer to other information to determine the corresponding outdoor number A grid of n layers.
  • the nth layer grid in the room and the corresponding outdoor nth layer grid can be simulated, and the corresponding outdoor nth layer grid can be calculated by reference.
  • the cell in the cell signal strength information of the cell determines the cell in the cell signal strength information of the grid of the nth layer in the room, and the specific method is explained in the following embodiments.
  • the cell signal strength information of the grid of the nth layer of the outdoor can be obtained in various ways. For example, it may be from the test data, such as the Drive Test (DT) data and/or the terminal data, or the cell signal strength information obtained by the calculation, which is not limited by the embodiment of the present invention.
  • DT Drive Test
  • S230 Determine cell signal strength information of the grid of the nth layer in the indoor area according to the cell signal strength information of the nth layer of the outdoor layer corresponding to the grid of the nth layer in the room. Due to the attenuation of the signal intensity of the outdoor n-th grid with a horizontal distance from the building less than a certain range (eg 50-60 m), the attenuation of the signal intensity of the n-th grid in the room is closer. It often exhibits similar signal characteristics and conforms to the statistical characteristics in mathematics. Therefore, the cell signal strength information of the nth layer of the grid can be used to determine the cell signal strength information of the nth layer of the building.
  • a certain range eg 50-60 m
  • the method for determining the cell signal strength information of the grid in the room determines the outdoor area corresponding to the grid of the nth layer in the room according to the horizontal position information of the grid of the nth floor in the room.
  • the nth layer of the grid can determine the cell signal strength information of the nth layer of the grid in the indoor signal strength information of the corresponding outdoor nth layer grid, thereby obtaining high accuracy
  • the indoor cell signal strength information is used to further achieve high-precision indoor 3D positioning.
  • the grid of the nth layer in the indoor to be determined is the edge grid of the nth layer in the room
  • Determining the grid of the nth floor of the outdoor corresponding to the grid of the nth layer in the room according to the horizontal position information of the grid of the nth floor in the room may include:
  • Determining the cell signal strength information of the nth layer of the indoor cell according to the cell signal strength information of the outdoor nth layer grid corresponding to the nth layer of the indoor cell including: Determining the nth layer of the room according to the cell signal strength information of the nth layer of the outdoor and the loss relationship between the signal strength inside and outside the wall of the outdoor nth layer of the nth layer of the indoor layer Cell signal strength information of the edge grid.
  • the grid of the nth layer at least one outdoor from the first threshold of the edge grid can be calculated based on the horizontal position information thereof.
  • the range of the first threshold may be selected to correspond to the size of the outdoor grid, for example, 20 meters or 30 meters.
  • a grid of the nth layer of the outer layer closest to the edge grid of the nth layer in the room may be selected.
  • the cell signal strength information of the edge raster of the nth layer in the room may be considered based on the cell signal strength information of the outdoor nth layer grid corresponding to the edge raster of the nth layer in the room, considering the inside and outside of the wall
  • the loss relationship of signal strength is determined.
  • the loss relationship of the signal strength inside and outside the wall can be an empirical formula, such as an empirical formula related to factors such as wall thickness, height, signal frequency band, etc. It can also be an empirical value, such as wall penetration loss (Wall Penetrate Loss, Wall-PLoss value, the selection of the Wall-PLoss value can also be related to the frequency band and other factors, and its value range can be 3-10dB.
  • the Wall-PLoss value is 5 dB.
  • the cell in the cell signal strength information of the outdoor nth layer grid may be determined as the cell in the cell signal strength information of the indoor nth layer edge raster;
  • the signal strength of the nth layer of the grid is subtracted from the Wall-PLoss value as the signal strength of the cell of the nth layer of the indoor edge grid.
  • the simulated cell signal strength information of the edge raster of the nth layer in the room can be determined by simulation, such as ray tracing, according to the engineering parameter information of the antenna.
  • the simulated cell signal strength information includes information such as one or more cells that the grid can receive and signal strengths corresponding to the cells. Based on the signal strength information of the simulated cell, the cell signal strength information of the edge raster of the nth layer in the indoor may be determined by using the cell signal strength information of the corresponding nth layer of the outdoor antenna.
  • the engineering parameter information of the antenna includes antenna related engineering parameters in the wireless network planning, such as antenna azimuth, antenna downtilt, antenna hanging height, antenna latitude and longitude information, and transmitting power.
  • the same cell is used as the nth layer in the indoor a cell of an edge raster; a cell present in the simulated cell signal strength information of the edge raster of the nth layer only indoors or a small grid of the nth layer only in the corresponding outdoor
  • the cell existing in the signal strength information of the area needs to be combined with the engineering parameter information of the antenna to determine whether the signal of the cell should exist at the edge grid of the nth layer in the room. If it should exist, the cell is also used as the indoor The cell of the edge raster of the nth layer.
  • the propagation of the base station of the other cell that is close to the base station of the cell may be used to determine whether the cell should be present at the first edge of the cell, and the method for determining the cell may be multiple. This is not limited.
  • the cell strength of the simulated cell signal strength information of the nth layer edge raster in the room and the cell signal strength information of the corresponding outdoor nth layer grid, the signal strength of the nth layer edge raster of the room It can still be determined by subtracting the Wall-PLoss value from the signal strength of the corresponding outdoor n-th layer grid.
  • the cell that does not exist in the cell signal strength information of the corresponding outdoor nth layer grid may be selected as the nth layer in the indoor.
  • the grid of the nth layer in the indoor to be determined is a non-edge grid of the nth layer in the room
  • Determining the grid of the nth floor of the outdoor corresponding to the grid of the nth layer in the room according to the horizontal position information of the grid of the nth floor in the room may include:
  • first outdoor grid and a second outdoor grid Determining a first outdoor grid and a second outdoor grid, the first outdoor grid and the second outdoor grid being an outdoor nth floor grid, wherein the first outdoor grid and the second outdoor The relative positional relationship of the grid is the same as the relative positional relationship between the edge grid of the nth layer of the room corresponding to the non-edge grid of the nth layer in the room and the non-edge grid of the nth layer of the room And the environmental correlation of the first outdoor grid is consistent with the environmental correlation of the n-th layer edge grid of the indoor corresponding to the non-edge grid of the n-th floor of the room; wherein, the first outdoor The relative positional relationship between the grid and the second outdoor grid is calculated according to the horizontal position information of the first outdoor grid and the horizontal position information of the second outdoor grid; and the non-nth layer of the room
  • the relative positional relationship between the edge grid of the nth layer in the chamber corresponding to the edge grid and the non-edge grid of the nth layer in the chamber
  • the edge grid of the nth layer of the same or similar position in the other direction in the first direction or the second direction or the horizontal position may have Multiple.
  • the edge grid of the first layer in the room is taken as an example, and four are shown in the figure.
  • An edge grid of the nth layer in the room corresponding to the non-edge grid of the nth layer in the room is selected for description.
  • a vector may be determined from the center of the edge grid of the nth layer of the interior corresponding to the non-edge grid of the nth layer of the chamber to the center of the non-edge grid of the nth layer of the chamber, the size of the vector
  • the distance from the center of the n-th layer edge grid of the room corresponding to the non-edge grid of the nth layer in the room to the center of the n-th layer non-edge grid of the room, the direction is from the room
  • the center of the edge grid of the nth layer of the corresponding n-th layer non-edge grid points to the center of the non-edge grid of the nth layer of the room.
  • the environmental relevance may be determined based on information such as the 3D GIS and/or the engineering parameters of the antennas of nearby base stations.
  • the environmental correlation of the first outdoor grid includes a relative positional relationship between the first outdoor grid and the antenna of the base station; and an environmental correlation of the nth layer of the indoor grid corresponding to the non-edge grid of the nth layer in the room
  • the degree includes a relative positional relationship between the edge grid of the nth layer in the room corresponding to the non-edge grid of the nth layer in the room and the antenna of the base station.
  • the relative positional relationship between the first outdoor grid and the antenna of the base station is calculated according to the horizontal position information of the first outdoor grid, the height information, the horizontal position information of the antenna of the base station, and the height information; the nth floor of the indoor
  • the relative positional relationship between the edge grid of the nth layer corresponding to the non-edge grid and the antenna of the base station is the level of the edge grid of the nth layer corresponding to the interior of the non-edge grid of the nth layer in the room
  • the position information, the height information, and the horizontal position information and height information of the antenna of the base station are calculated.
  • the environmental correlation is consistent, that is, the distance, direction, and the like of the antennas of the plurality of base stations from which the two grids can receive signals are as uniform as possible. It may also include that two grids have more similar cells or cells with similar strengths, or may consider antennas of cells or base stations.
  • the weighting evaluation method of the signal strength of the cell or the cell is not limited in this embodiment of the present invention. The strength of the cell or cell mentioned here can be calculated by simulation.
  • a vector similar to the above vector is used as a starting point from the first outdoor grid, and an end point of the vector is determined, and a second outdoor grid in which the end point of the vector is located or is closest to the end point of the vector is obtained.
  • the distance between the end point of the vector and the second outdoor grid should be smaller than the side length of the grid of the nth floor in the room. If the second outdoor grid that meets the condition is not found, the first outdoor can be re-selected.
  • the grid and the corresponding second outdoor grid can ensure the positional relationship between the first outdoor grid and the second outdoor grid in this manner, and the indoor corresponding to the non-edge grid of the nth floor in the room
  • the edge grid of the nth layer coincides with the positional relationship of the non-edge grid of the nth layer in the chamber.
  • the attenuation of the signal strength of the cell received by the first outdoor grid and the signal strength of the cell received by the second outdoor grid and The received signal strength of the cell of the nth layer of the indoor nth layer corresponding to the non-edge grid of the indoor layer and the non-edge grid of the nth layer of the room
  • the attenuation law between the signal strengths of the cells is the same. Therefore, the difference between the signal strengths corresponding to the same cells in the cell signal strength information of the first outdoor grid and the second outdoor grid is set to be the first difference.
  • the difference in signal strength is the second difference.
  • the signal strength corresponding to the cell in the cell signal strength information of the non-edge grid of the nth layer in the room may be determined.
  • the first difference and the second difference may be set to be unequal, but the difference is an empirical value, thereby determining corresponding to the corresponding cell in the cell signal strength information of the non-edge grid of the nth layer in the indoor. Signal strength.
  • the simulated cell signal strength information of the n-th layer non-edge grid in the room may be determined by using a simulation calculation, and the n-th layer non-edge grid cell in the indoor is determined based on the simulated cell signal strength information.
  • Signal strength information the cell that can be received by the grid in the simulated cell signal strength information is mainly referred to.
  • edge grid of the nth layer of the room corresponding to the non-edge grid of the nth layer in the room and the corresponding pair of the first outdoor grid and the second outdoor grid may be Community letter
  • the intensity information is used to determine the cell signal strength information of the non-edge grid of the nth layer in the room.
  • the edge grid of the nth layer of the plurality of indoors and the corresponding outdoor grid of the plurality of indoors that are the same or similar to the position of the non-edge grid of the nth layer of the indoor layer in the room may also be
  • the corresponding cell signal strength information respectively determines cell signal strength information of the n-th layer non-edge grid in the plurality of groups of indoors, and then averages the signal strengths of the cells in the multi-group cell signal strength information to improve the cell signal strength information. The accuracy of the cell signal strength information.
  • the method 200 is to determine the cell signal strength information of the grid of the nth layer in the room based on the cell signal strength information of the nth floor raster of the outdoor corresponding to the grid of the nth floor in the room. Among them, the cell signal strength information of the outdoor nth layer grid is determined by a plurality of methods when n is equal to 1 and n is greater than 1. These will be described in detail below.
  • the cell signal strength information of the grid of the nth layer of the outdoor corresponding to the grid of the nth layer in the room is obtained, which may include:
  • test data of a grid of the first layer of the outdoor corresponding to the grid of the first layer in the room including the grid of the first layer of the outdoor corresponding to the grid of the first layer in the room Horizontal position information and cell signal strength information;
  • the error data in the test data is deleted, wherein the variation of the attenuation of the cell signal strength with the distance is based on the cell signal strength information of the plurality of outdoor first-layer grids. Obtained horizontal position information of a plurality of outdoor first layer grids;
  • the cell signal strength information in the test data after the deletion of the error data is determined as the cell signal strength information of the outdoor first layer grid corresponding to the grid of the first floor in the room.
  • the cell signal strength information of the grid of the first layer in the outdoor can be obtained by acquiring and processing the test data of the grid of the first layer in the outdoor.
  • the test data may include DT data and/or terminal data, the content of which includes the horizontal layer information of the first layer of the outdoor and the cell signal strength information.
  • the DT data refers to collecting the wireless air interface related signals and information by using the in-vehicle device with the terminal, and the information includes at least the latitude and longitude position information of the test point and the plurality of cells received by the terminal corresponding to the location and corresponding to the cells. Information such as signal strength.
  • the terminal data may be latitude and longitude position information of the Assisted Global Positioning System (AGPS) collected by the terminal or collected by the application software in the terminal, and passed through the MR Information such as the cell identifier and signal strength of the received signal.
  • AGPS Assisted Global Positioning System
  • the test data may include other information, for example, height information measured by a function such as a barometer of the terminal, and the like, which is not limited by the embodiment of the present invention.
  • an outdoor 1st floor grid may contain one or more test data.
  • the average value or the smoothed value of the intensity information of the plurality of cells corresponding to the plurality of test data may be approximated as the signal strength corresponding to the grid.
  • a plurality of outdoor test points can be selected in the range of 50-60 meters of the first floor of the outdoor, based on the edge grid of the first floor in the building. Calculate the difference between the cell signal strengths of the outdoor test points. Under normal conditions without obstructions, the attenuation of the cell signal strength has a certain variation with the distance. When a barrier to a building or other object is encountered, the signal strength may appear to be singularly different from the law of variation. In addition, you may find some points where the signal strength error is large.
  • the outdoor test points with large singular points and large errors can be deleted, and the cell signal strength information in the test data after the error data is deleted is used as the cell signal strength information of the grid of the first layer of the outdoor, so that Indoor 3D positioning matching information is more accurate.
  • the number of singular points, larger errors, and normal points in FIG. 6 is only schematic, and is not limited to the embodiment of the present invention.
  • the signal strength of the grid of the first layer of the outdoor layer Should be attenuated by 5dB, but the signal intensity of the outdoor first-floor grid is abnormally attenuated by 20dB, then it can be considered that the outdoor first-layer grid may have occlusion, which is singular, deleted; or another
  • the signal intensity of the outdoor first-layer grid should be attenuated by 5dB, but the signal strength of the outdoor first-layer grid is abnormally increased by 5dB, and the test data of the outdoor first-layer grid can be considered. The error is large and will be deleted.
  • the method 200 may further include:
  • the cell signal strength information in the test data after the error data is deleted is the cell signal strength information of the outdoor layer 1 grid corresponding to the grid of the first floor in the room, and includes:
  • the cell signal strength information after smoothing in the test data after the deletion of the error data is determined is the cell signal strength information of the outdoor first layer grid corresponding to the grid of the first floor in the room.
  • the cell signal strength in the test data can be smoothed.
  • the specific implementation manner may be as follows: Select a test data corresponding to an outdoor test point, and determine a plurality of outdoor first-layer grids with a distance from the test point to a second threshold, and the distance according to the test point is the second wide
  • the cell signal strength information of the plurality of outdoor first layer rasters of the value is smoothed by the cell signal strength information in the test data corresponding to the test point. For example, in these test data, the signal strengths corresponding to the same cell are averaged as the signal strength of the corresponding cell of the selected test point.
  • the smoothed cell signal strength information in the test data after the error data is deleted is used as the cell signal strength information of the outdoor first layer raster corresponding to the indoor first floor raster.
  • the second threshold can be taken as 10 meters. According to the actual data, the DT data corresponding to the test in the range of 10 meters has a high correlation.
  • the second threshold may also take other different values, such as 20 meters or 30 meters, which is not limited by the embodiment of the present invention.
  • the cell signal strength information of the grid of the nth layer of the outdoor corresponding to the grid of the nth layer in the room is obtained, which may include:
  • the simulated cell signal strength information of the outdoor nth layer grid corresponding to the indoor nth layer grid and the simulation of the outdoor first layer grid are determined by simulation calculation.
  • Cell signal strength information wherein the horizontal position information of the outdoor first layer grid coincides with the horizontal position information of the outdoor nth layer grid corresponding to the nth floor grid in the room;
  • the simulated cell signal strength information of the outdoor n-th layer grid corresponding to the indoor n-th grid, the simulated cell signal strength information of the outdoor first-layer grid, and the outdoor first-layer grid determines the cell signal strength information of the outdoor nth layer grid corresponding to the nth floor grid in the room.
  • the simulated cell signal strength information of the first layer of the grid in the outdoor layer may be determined by using a simulation calculation method such as ray tracing according to the engineering parameter information of the antenna of the base station.
  • the simulated cell signal strength information of the outdoor nth layer grid, the outdoor nth layer grid is the same as or similar to the outdoor 1st layer grid horizontal position information, that is, the outdoor nth layer grid and
  • the outdoor grid of the first layer is positioned as close as possible in the first direction and the second direction, and the height of the grid of the nth layer of the outdoor corresponds to the nth layer of the building.
  • the difference in signal strength of the cell is the third difference.
  • the difference in signal strength of the cell is the fourth difference. According to the third difference and the fourth difference being equal, the signal strength of the cell in the cell signal strength information of the outdoor n-th grid corresponding to the grid of the nth layer in the room can be determined.
  • the third difference and the fourth difference are unequal, but to differ by an empirical value, thereby determining a cell of the outdoor nth layer grid corresponding to the nth layer of the grid in the room.
  • the signal strength of the cell in the signal strength information is also possible to set the third difference and the fourth difference to be unequal, but to differ by an empirical value, thereby determining a cell of the outdoor nth layer grid corresponding to the nth layer of the grid in the room. The signal strength of the cell in the signal strength information.
  • the information of the cell in the simulated cell signal strength information of the outdoor n-th grid corresponding to the grid of the nth layer in the room may be referred to, corresponding to the grid of the nth layer in the room.
  • the cells in the cell signal strength information of the outdoor nth layer grid are supplemented.
  • the difference between the cell of the nth layer and the cell of the 1st layer is different. It may be large.
  • the cell signal strength information of the grid of each floor in the outdoor may be determined layer by layer. For example, as shown in FIG. 8, to determine the cell signal strength information of the outdoor layer 3 grid, the simulated cell signal strength information of the outdoor layer 2 and layer 3 grids and the outdoor layer 2 layer may be determined. The cell signal strength information of the grid is determined.
  • the cell signal strength information of the grid of the nth layer of the outdoor corresponding to the grid of the nth layer in the room is obtained, which may include:
  • the simulated cell signal strength information of the n-1th layer grid and the simulated cell signal strength information of the outdoor nth layer grid are determined by simulation calculation, wherein, the outdoor The grid of the n-1 layer and the grid of the nth layer of the outdoor are both in the first direction and the second grid of the outdoor n-1th layer corresponding to the grid of the n-1th layer in the room.
  • the position information of the direction is the same, and the height of the grid of the n-1th layer of the outdoor is the height of the grid of the n-1th floor of the room.
  • the height of the outdoor nth layer grid is equal to the height of the nth layer grid in the room; determining the cell signal strength information of the outdoor n-1th layer grid;
  • the cell signal strength information of the outdoor n-1th layer grid may be known, for example, obtained by measurement means, or already in the process of calculating cell signal strength information of the grid of other floors. obtain.
  • the cell signal strength information of the outdoor n-1th layer grid may also be unknown. In this case, the following steps may be repeatedly performed until the cell signal strength information of the outdoor n-1th layer raster is obtained, the initial of i The value is set to 1.
  • the simulated cell signal strength information of the grid of the i-th layer of the outdoor and the simulated cell signal strength information of the grid of the i+1th layer of the outdoor are determined by simulation calculation, wherein, the outdoor The horizontal position information of the grid of the i layer and the horizontal position information of the grid of the i+1th layer of the outdoor are both the horizontal position of the grid of the nth floor of the outdoor corresponding to the grid of the nth layer in the room.
  • the height of the grid of the i-th floor of the outdoor is equal to the height of the grid of the i-th floor of the room, and the height of the grid of the i+1th layer of the outdoor and the grid of the i+1st floor of the room.
  • the height is equal; determining the cell signal strength information of the grid of the i-th layer in the outdoor;
  • the cell signal strength information of the outdoor layer 3 grid it may be based on the simulated cell signal strength information of the outdoor layer 1 and layer 2 grids and the outdoor layer 1 layer.
  • the cell signal strength information of the grid determines the cell signal strength information of the outdoor layer 2 grid; and the simulated cell signal strength information of the outdoor 2nd and 3rd layer grids and the outdoor 2nd layer
  • the cell signal strength information of the grid determines the cell signal strength information of the grid of the third layer in the outdoor.
  • the simulated cell signal strength information of the grid of any of the outdoor layers (eg, the Xth layer) determined by the simulation calculation may be smoothed.
  • smoothing may be performed in the Xth horizontal plane, and the y (for example, p is 5) simulation points closest to the distance may be taken, in the y simulation points.
  • Distance imitation The maximum distance of the true point is d.
  • the range of d can be determined according to the size of the outdoor grid division, generally 15-35 meters, and preferably d can be 25 meters.
  • the signal strengths of the same cells corresponding to the y simulation points are averaged as the signal strength of the cells in the cell signal strength information corresponding to the simulation point for performing the smoothing process.
  • the cell signal strength information of each floor in the outdoor and indoor areas may be determined by referring to the simulated cell signal strength information obtained by using the simulation. That is, the information of the cell in the signal strength information of the cell is referenced, so that the cell signal strength information is more accurate and complete.
  • the specific reference method has been described in the foregoing, and is not described here for brevity.
  • the method for determining the cell signal strength information of the grid in the room determines the outdoor area corresponding to the grid of the nth layer in the room according to the horizontal position information of the grid of the nth floor in the room.
  • the nth layer of the grid can determine the cell signal strength information of the nth layer of the grid in the indoor signal strength information of the corresponding outdoor nth layer grid, thereby obtaining high accuracy
  • the indoor cell signal strength information is used to further achieve high-precision indoor 3D positioning.
  • the method 200 for determining the cell signal strength information of the indoor grid is based on the cell signal strength information of the outdoor space, comprehensively considering the outdoor conditions, and reproducing the outdoor scene, so that the relative changes of the signals of different floors in the outdoor are more in line with the actual situation, and the building is improved.
  • the accuracy of the cell signal strength information of the grid of each floor in the room can obtain high-precision indoor 3D positioning matching information.
  • This method is more suitable for higher floors, and the signal strength of the cells and cells that the terminal can receive when the floor is higher may be significantly different from the lower floors.
  • the lower floors other than the first floor, such as the second floor to the fifth floor, have a certain regularity in the change of the cell signal strength information.
  • a more convenient method can be used to determine the cell signal strength information for the grids of these floors, as described in method 300.
  • FIG. 9 is a schematic flow diagram of a method 300 of determining cell signal strength information for a grid within a room, in accordance with another embodiment of the present invention.
  • the method 300 may be performed by a device that determines cell signal strength information for a grid within the room, or by a corresponding module of the indoorly located device. As shown in Figure 9, the method 300 includes:
  • S320 acquiring cell signal strength information of a grid of an mth layer in an indoor corresponding to a grid of a pth layer in the indoor or a grid of an mth layer of the outdoor; S330, determining, according to cell signal strength information of a grid of an mth layer in a room corresponding to a grid of the pth layer in the room or a grid of an mth layer of the outdoor, determining a grid of the pth layer in the room Cell signal strength information, where p is an integer greater than 1, m is a positive integer less than p, the height of the first layer is the ground height, and the height of the p-th layer is higher than the ground height.
  • the lower p-th floor of the building except the first layer such as the second to fifth floors of the building, due to the blockage of the cell signal strength of the indoor grid of the building and the building interior
  • the mth layer, especially the first layer has similar features, especially in the edge grid.
  • the cell signal strength information of the grid of the pth layer in the room can be determined by the cell signal strength information of the grid of the mth floor in the building.
  • the method for determining the cell signal strength information of the grid in the room determines the outdoor corresponding to the grid of the p-th floor of the indoor layer according to the horizontal position information of the grid of the p-th floor in the room.
  • the grid of the mth layer or the grid of the mth layer in the room can be determined by acquiring the cell signal strength information of the grid of the corresponding mth layer of the outdoor or the grid of the mth layer of the room.
  • the cell signal strength information of the grid of the p-th layer can obtain the cell signal strength information of the indoor with high accuracy, so as to further realize high-precision indoor 3D positioning.
  • the grid of the first layer of the room or the grid of the first layer of the outdoor, and the cell signal strength information of the grid of the mth layer of the room other than the first layer or the grid of the mth layer of the outdoor may be the cell signal strength information in the corresponding indoor or outdoor test data, or may be the cell signal strength information in the calculated simulation data, or may be the cell signal strength information determined by the method of other embodiments of the present invention.
  • the embodiment of the present invention does not limit this.
  • the cell signal strength information of the grid of the p-th floor in the room is determined by the cell signal strength information of the grid of the first layer in the indoor or the grid of the first layer of the outdoor, and the method 300 is described in detail.
  • the process of determining the cell signal strength information of the grid of the p-th floor in the indoor is similar to the cell signal strength information of the grid of the mth layer of the indoor or the grid of the mth layer of the outdoor, and is not described here.
  • the grid of the pth layer in the room is the edge grid of the pth layer in the room
  • the grid of the mth layer in the room corresponding to the grid of the pth layer in the room or the grid of the mth layer in the outdoor may be determined according to the horizontal position information of the grid of the pth layer in the room, and may include:
  • the position information is consistent with the horizontal position information of the grid of the p-th floor in the room
  • Determining the cell signal strength information of the grid of the mth layer in the indoor according to the cell signal strength information of the grid of the mth layer of the indoor corresponding to the grid of the pth layer in the room or the grid of the mth layer of the outdoor can include:
  • the enhancement of the signal strength of the cell received by the edge grid of the first layer in the corresponding room is related to the loss relationship between the signal strength between the floors.
  • the horizontal position information of the edge grid of the first layer in the room corresponding to the edge grid of the p-th floor in the room coincides with the horizontal position information of the grid of the p-th floor in the room.
  • the horizontal position information coincides with the position of the edge grid of the p-th floor in the room in the first direction and the second direction and the edge grid of the first layer of the room corresponding to the edge grid of the p-th floor in the room.
  • the position in the first direction and the second direction is the same as ⁇ .
  • the signal strength can be increased by q dB for each layer raised by the terminal, that is, floor Penetrate Loss (floor-PLoss), the edge grid of the p-th floor in the room.
  • the signal intensity of the edge grid of the first floor of the room is larger (pl) q dB.
  • the selection of the m value is related to factors such as the frequency band, and the range may be 3-10.
  • the q value may take 3. Therefore, based on the cell signal strength information of the grid of the first layer in the room, the cell signal strength information of the grid of the pth layer in the room can be obtained.
  • the grid of the p-th floor in the room can be simulated to obtain simulated cell signal strength information of the grid of the p-th floor in the room. Comparing the cell in the cell signal strength information of the cell edge intensity spectrum of the first layer of the indoor layer corresponding to the edge raster of the p-th floor in the room, and the cell in the simulated cell signal strength information of the grid of the p-th floor in the room, a cell in which the same cell is used as an edge raster of the p-th floor of the indoor; a cell existing in the cell signal strength information of the grid of the first layer in the room, or an edge raster of the p-th floor only indoors
  • the cell existing in the signal strength information of the simulated cell needs to be combined with the engineering parameter information of the antenna to determine whether the signal of the cell should exist at the edge raster of the p-th floor in the room. If it should exist, the cell is also used as The interior The cell of the edge raster of the p-th layer.
  • the cell signal strength information of the edge raster of the p-th floor in the room can be calculated by the above method of considering the floor penetration loss.
  • the simulated cell signal strength information exists in the edge raster of the p-th floor of the indoor, but does not exist in the cell signal strength information of the edge raster of the first layer corresponding to the edge raster of the p-th floor in the room.
  • the cell strength can be selected from the signal strength of the cell in the simulated cell signal strength information of the edge raster of the p-th floor in the room.
  • the grid of the pth layer in the room is a non-edge grid of the pth layer in the room
  • the grid of the mth layer in the room corresponding to the grid of the pth layer in the room or the grid of the mth layer in the outdoor may be determined according to the horizontal position information of the grid of the pth layer in the room, and may include:
  • the first outdoor grid and the second outdoor grid are both an outdoor m-th floor grid, wherein the first outdoor grid and the second outdoor grid are opposite a positional relationship, and a relative positional relationship between an edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the interior and a non-edge grid of the p-th floor of the room, and the first outdoor grid
  • the environmental correlation is consistent with the environmental correlation of the edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the room; wherein the relative positions of the first outdoor grid and the second outdoor grid
  • the relationship is calculated according to the horizontal position information of the first outdoor grid and the horizontal position information of the second outdoor grid; the edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the room and The relative positional relationship of the non-edge grid of the p-th floor in the room is based
  • Determining the cell signal strength information of the grid of the mp layer in the indoor according to the cell signal strength information of the grid of the mth layer of the indoor corresponding to the grid of the pth layer in the room or the grid of the mth layer of the outdoor can include:
  • the environmental correlation of the first outdoor grid includes a relative positional relationship between the first outdoor grid and the antenna of the base station; and an edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the room
  • the environmental correlation includes a relative positional relationship between the edge raster of the p-th floor in the room corresponding to the non-edge grid of the p-th floor in the room and the antenna of the base station.
  • the relative positional relationship between the first outdoor grid and the antenna of the base station is calculated according to the horizontal position information of the first outdoor grid, the height information, and the horizontal position information and height information of the antenna of the base station; the non-edge of the p-th floor of the room
  • the relative positional relationship between the edge grid of the p-th floor corresponding to the grid and the antenna of the base station is the horizontal position information of the edge grid of the p-th floor corresponding to the non-edge grid of the p-th floor in the room
  • the height information and the horizontal position information and height information of the antenna of the base station are calculated.
  • Method and method for determining cell signal strength information of a non-edge grid of a p-th floor in a room 200 cell signal strength information of an edge raster of an nth layer in a room and cell signal strength of a grid of an nth layer of an outdoor The method for determining the location matching information of the non-edge grid of the nth layer of the building is similar, and is not described here for brevity.
  • the method for determining the cell signal strength information of the grid in the room determines the outdoor corresponding to the grid of the p-th floor of the indoor layer according to the horizontal position information of the grid of the p-th floor in the room.
  • the grid of the mth layer or the grid of the mth layer in the room can be determined by acquiring the cell signal strength information of the grid of the corresponding mth layer of the outdoor or the grid of the mth layer of the room.
  • the cell signal strength information of the grid of the p-th layer can obtain the cell signal strength information of the indoor with high accuracy, so as to further realize high-precision indoor 3D positioning.
  • the cell signal strength information of the non-edge grid of the p-th floor in the room may also be determined by the cell signal strength information of the non-edge grid of other floors in the room, combined with the loss relationship of the signal strength between the floors, in the embodiment of the present invention. This is not limited.
  • the method for determining the cell signal strength information of the indoor nth layer grid by the cell signal strength information of the nth floor grid of the outdoor and the grid or indoor of the mth layer of the outdoor are respectively described in detail in the above.
  • the cell signal strength information of the m-layer grid determines the cell signal strength signal of the grid of the p-th floor (when n is not equal to 1, the n-th layer can be the same as the p-th layer).
  • the cell signal strength information determined by the former is more accurate and is suitable for higher floors in buildings; the latter process for determining cell signal strength information is simpler and is applicable to shorter floors in buildings.
  • the two can be combined, for example, when determining the cell signal strength information of the grid in the building, Breaking the floor, when the floor n is less than or equal to N, the latter determines the cell signal strength information of the grid of the layer; when the floor n of the building is greater than N, the former determines the cell signal of the grid of the layer Strength information.
  • the positioning matching information of the floors determined by the two methods is combined, and the positioning matching information of each floor of the entire building can be obtained.
  • the method for determining the cell signal strength information of the grid in the room determines the outdoor area corresponding to the grid of the nth layer in the room according to the horizontal position information of the grid of the nth floor in the room.
  • the grid of the first layer or the grid of the first layer of the room can be determined by acquiring the cell signal strength information of the corresponding outdoor first layer grid or the indoor first layer grid.
  • the cell signal strength information of the grid of the nth layer can obtain the cell signal strength information of the indoor with high accuracy, so as to further realize high-precision indoor 3D positioning.
  • the cell signal strength information of the non-edge grid in the indoor grid is determined by the following steps:
  • an edge grid of the kth layer of the indoor distance of the non-edge grid of the kth layer of the room is less than a third threshold, the distance is Calculated according to the horizontal position information of the grid, where k is an integer greater than or equal to 1; obtaining the k-th floor of the room where the distance from the non-edge grid of the kth layer in the room is less than the third threshold Cell signal strength information of the edge grid;
  • Determining, according to the engineering parameter information of the antenna of the base station, the simulated cell signal strength information of the edge raster of the kth layer in the indoor distance of the non-edge grid of the kth layer in the indoor is determined by simulation calculation and Simulated cell signal strength information of the non-edge grid of the kth layer in the room; according to the edge grid of the kth layer of the room having a distance smaller than the third threshold from the non-edge grid of the kth layer in the room.
  • the simulated cell signal strength information, the simulated cell signal strength information of the non-edge grid of the kth layer in the room, and the kth layer of the indoor distance from the non-edge grid of the kth layer in the room is less than the third threshold
  • the cell signal strength information of the edge raster determines the cell signal strength information of the non-edge raster of the kth layer in the indoor.
  • a non-edge grid of any layer in the room such as a non-edge grid of the kth layer in the room
  • the cell signal strength information of the edge raster of the k layer and the simulated cell signal strength information are determined.
  • the third wide value can be 20 meters, 30 meters or 50 meters.
  • an edge grid of the kth layer in the room closest to the non-edge grid of the kth layer in the room may be selected.
  • the kth of the room closest to the non-edge grid of the kth layer in the room is selected.
  • the edge grid of the layer can determine the signal strength information of the simulated cell of the non-edge grid of the kth layer in the indoor and the k-th floor of the indoor by using the simulation calculation method such as ray tracing according to the engineering parameter information of the antenna of the base station. Simulated cell signal strength information for the edge raster of the kth layer of the nearest indoor of the non-edge grid.
  • the simulation of the signal strength of a certain cell in the simulated cell signal strength information of the non-edge grid of the kth layer in the room and the simulation of the edge grid of the kth layer in the room closest to the non-edge grid of the kth layer in the room The difference between the signal strengths of the cells in the cell signal strength information is the fifth difference.
  • Setting the cell signal strength of a cell in the cell signal strength information of the non-edge grid of the kth layer in the indoor and the cell signal of the edge raster of the kth layer in the room closest to the non-edge grid of the kth layer in the room The difference in signal strength of the cell in the intensity information is the sixth difference.
  • the signal strength of the cell in the cell signal strength information of the non-edge grid of the kth layer in the indoor can be determined.
  • the fifth difference and the sixth difference it is also possible to set the fifth difference and the sixth difference to be unequal, but to differ by an empirical value, thereby determining the signal strength of the cell in the cell signal strength information of the non-edge grid of the kth layer in the room.
  • the simulated cell signal strength information of the edge raster of the kth layer in the indoor distance of the non-edge grid of the kth layer of the indoors or the information of the cell in the cell signal strength information.
  • the cell information in the simulated cell signal strength information of the non-edge raster of the kth layer in the indoor complements the cell in the non-edge raster cell signal strength information of the kth layer in the indoor, which is used by the embodiment of the present invention Not limited.
  • the cell signal strength information of the edge raster of the kth layer in the room may be derived from the test data in the room, or may be calculated according to a simulation algorithm or according to other embodiments of the present invention, which is not limited by the embodiment of the present invention.
  • the method for determining cell signal strength information of a non-edge grid in a room determines, according to the horizontal position information of the non-edge grid of the kth layer in the room, the non-edge of the kth layer in the room.
  • the edge grid of the kth layer corresponding to the grid corresponds to the cell signal strength information of the edge raster of the kth layer in the indoor, so that the cell signal strength information of the non-edge grid of the kth layer can be obtained, so as to facilitate Further realize high-precision indoor 3D positioning.
  • the method for obtaining the cell signal strength information of the grids of each floor in the building is described in detail above.
  • the horizontal position information, the height information and the cell signal strength information of the grid constitute the indoor 3D positioning matching information, and the plurality of positioning matching information sets. Together, it can be called a matching feature library.
  • the steps to determine the building interior matching feature library will be described from a more systematic perspective.
  • the building information extracted by GIS models the building in 3D.
  • Raster partitioning is performed on each floor of each building by a multiple of 3D GIS resolution or resolution.
  • the simulation of the floor of the building is simulated by the simulation tool, and the cell signal strength information of the corresponding grid of each floor can be obtained through simulation.
  • a simulation matching feature library of the grid of the floor of the building is obtained, and the simulation matching feature information of each grid includes information such as horizontal position information, height information and cell signal strength information of the grid grid obtained through simulation.
  • FIG. 12 illustrates a method 400 of determining a building interior matching feature library for a lower floor of a building.
  • the indoor signal strength value changes according to certain rules, and the method is simple and convenient.
  • Method 400 may also be referred to as "floor penetration loss determination" in accordance with the main features of method 400.
  • Method 400 includes:
  • the simulated matching feature information of the edge grating of the first layer in the indoor only uses the horizontal position information thereof, and determines a distance and the edge grid of the first layer of the indoor to be determined in the grid of the first layer of the outdoor
  • the grid of the nearest outdoor 1st floor The grid of the nearest outdoor 1st floor.
  • the signal strength of the same cell is replaced by the wall penetration loss corrected by the signal intensity corresponding to the grid of the first layer of the outdoor.
  • the antenna engineering parameter library is queried, and the real geographical proximity of the set of the same cell obtained by the cell is determined. If there is a cell close to it, in a similar propagation environment, the cell should also be received by the indoor grid, so it is added to the matching feature information of the indoor grid, otherwise the cell is discarded.
  • the matching feature information of the edge layer of the first layer in the room and the matching feature information of the non-edge grid are obtained, and the matching feature library corresponding to all the grids of the first layer in the room is obtained.
  • matching feature information of the edge layer of the nth layer in the indoor of the same horizontal position is determined by performing floor penetration loss on the signal strength of the cell of the edge grating of the first layer in the room (the floor penetration loss is desirable) Different values are generally 3 (n-1) dB better).
  • the matching feature library corresponding to all the grids of the nth layer in the indoor can be obtained.
  • matching feature information of the grids of all floors in the room may be obtained, that is, a matching feature library in the room may be obtained.
  • FIG. 13 illustrates a method 500 of determining a library of interior matching features for a taller floor of a building. For the higher floors of the building, the loss between the floors causes the indoor signal strength value to be no longer stable, and the method is more accurate.
  • Method 500 may also be referred to as "outdoor virtual test point determination" according to the main features of method 500.
  • Method 500 includes:
  • the process of selecting the outdoor layer 1 grid from S501 to S505 and determining the matching feature information of the grid of the first layer in the room is similar to the process of S410 to S450 in the method 400, and will not be described herein.
  • the matching characteristic information of the outdoor nth layer grid is corrected. Positive, the matching feature information of the edge raster of the nth layer in the room is determined.
  • the specific method is consistent with the description of the matching feature information of the edge raster of the first layer in the indoor layer in the S430 in the matching feature information of the first layer of the grid in the S430, and is not described here.
  • the matching feature library corresponding to all the grids of the nth layer in the indoor can be obtained.
  • matching feature information of the grids of all floors in the room can be obtained, that is, a matching feature library in the room can be obtained.
  • FIG. 14 illustrates a method 600 for determining building interior matching feature information using different methods for lower and higher floors of a building to further improve the accuracy of the matching feature library.
  • Method 600 may also be referred to as a "mixing determination method" according to the main features of method 600.
  • Method 600 includes:
  • n ⁇ N is the lower floor
  • n>N is the high floor (N can take different values, generally 4 or 5).
  • the low floor uses the "floor penetration loss determination method" to obtain the matching feature library of the floor.
  • the high floor uses the "outdoor virtual test point determination method" to obtain the matching feature library of the floor.
  • the following is a comprehensive example of the establishment of the entire matching feature library and the process of 3D feature matching and positioning.
  • the information of the building is extracted from the 3D GIS, the building is 3D-modeled, the floor is divided according to the information of the building, the floor is divided into each floor, and then the antenna is combined.
  • the engineering parameters perform 3D simulation on the building.
  • a 3D simulation matching feature library can be constructed. These data can be directly used as data of the 3D matching feature library for final 3D feature matching positioning.
  • the outdoor test data is obtained, the outdoor test data is combined, and then the test data around the building is selected and processed accordingly. Use these test data to simulate 3D features
  • the information in the library is corrected, and the information in the 3D simulation feature library can be corrected by using the indoor test data to form a 3D matching feature library for 3D feature matching positioning.
  • the measurement report can be obtained directly from the terminal to be located, and the horizontal position and height of the terminal can be determined according to the information in the measurement report matching with the 3D matching feature library.
  • the terminal can also be 2D-positioned according to the measurement report of the terminal and the engineering parameters of the reference antenna. According to the positioning result, the user is distinguished from the indoor and outdoor by combining the information of the 3D GIS. After determining that the terminal is located indoors, the terminal is accurately positioned according to the 3D matching feature library in the room.
  • the size of the sequence number of each process does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken by the embodiment of the present invention.
  • the implementation process constitutes any qualification.
  • FIG 16 shows a schematic block diagram of an apparatus 700 for indoor positioning in accordance with an embodiment of the present invention.
  • the indoor positioning device 700 includes:
  • the obtaining module 710 is configured to obtain current cell signal strength information of the terminal in the indoor;
  • the first determining module 720 is configured to determine, according to the indoor three-dimensional 3D positioning matching information, the current cell signal strength information that is acquired by the acquiring module 710.
  • a second determining module 730 configured to determine, according to the horizontal position information and the height information of the indoor grid corresponding to the current cell signal strength information determined by the first determining module 720, the horizontal position of the terminal in the indoor And the height at which the terminal is located, wherein the horizontal position information includes position information of the first direction and the second direction, the first direction and the second direction being two directions perpendicular to each other in a horizontal plane.
  • the apparatus for indoor positioning determines the corresponding indoor grid by matching the current cell signal strength information of the terminal to be located indoors with the cell signal strength information in the indoor three-dimensional 3D positioning matching information.
  • the horizontal position information and the height information of the grid determine the horizontal position of the terminal in the room and the height of the terminal, thereby realizing high-precision indoor 3D positioning.
  • the indoor positioning device 700 can also A third determining module 740 is included for determining cell signal strength information of the grid in the room, the third determining module 740 comprising:
  • a first determining unit 741 configured to determine, according to the horizontal position information of the grid of the nth layer in the indoor, a grid of the nth layer of the outdoor corresponding to the grid of the nth layer in the room, where n is greater than Or an integer equal to 1;
  • a first acquiring unit 742 configured to acquire cell signal strength information of the nth layer of the outdoor layer corresponding to the grid of the nth layer in the indoor determined by the first determining unit 741;
  • a second determining unit 743 configured to determine, according to the cell signal strength information of the outdoor nth layer grid corresponding to the grid of the nth layer in the indoor acquired by the first acquiring unit 742, Cell signal strength information for the n-layer grid.
  • the first determining unit 741 is specifically configured to:
  • the grid of the nth layer of the outdoor is determined to be smaller than the first threshold of the edge grid of the nth layer in the room, and the distance is according to the level of the grid. Calculated by location information;
  • the second determining unit 743 is specifically configured to:
  • the first determining unit 741 is specifically configured to:
  • first outdoor grid and a second outdoor grid Determining a first outdoor grid and a second outdoor grid, wherein the first outdoor grid and the second outdoor grid are outdoor n-th grids, wherein the first outdoor grid and the second outdoor grid are opposite a positional relationship, and a relative positional relationship between an edge grid of the nth layer of the interior corresponding to the non-edge grid of the nth layer in the interior and a non-edge grid of the nth layer of the interior, and the first outdoor grid
  • the environmental correlation is consistent with the environmental correlation of the n-th edge grid of the indoor corresponding to the non-edge grid of the nth layer in the room; wherein, the relative positions of the first outdoor grid and the second outdoor grid
  • the relationship is calculated according to the horizontal position information of the first outdoor grid and the horizontal position information of the second outdoor grid; the edge grid of the nth layer of the room corresponding to the non-edge grid of the nth layer in the room and The nth floor of the room
  • the second determining unit 743 is specifically configured to:
  • Cell signal according to cell signal strength information of the first outdoor grid, cell signal strength information of the second outdoor grid, and an edge raster of the nth layer of the indoor corresponding to the non-edge grid of the nth layer in the room
  • the intensity information determines cell signal strength information of the non-edge grid of the nth layer in the room.
  • the environmental correlation of the first outdoor grid includes a relative positional relationship between the first outdoor grid and the antenna of the base station; and an environment of the nth layer of the edge grid corresponding to the non-edge grid of the nth layer in the room
  • the correlation includes a relative positional relationship between the edge grid of the nth layer in the room corresponding to the non-edge grid of the nth layer in the room and the antenna of the base station.
  • the relative positional relationship between the first outdoor grid and the antenna of the base station is calculated according to the horizontal position information of the first outdoor grid, the height information, and the horizontal position information and height information of the antenna of the base station; the non-edge of the nth floor of the room
  • the relative positional relationship between the edge grid of the nth layer corresponding to the grid and the antenna of the base station is the horizontal position information of the edge grid of the nth layer corresponding to the interior of the non-edge grid of the nth layer in the room.
  • the height information and the horizontal position information and height information of the antenna of the base station are calculated.
  • the first obtaining unit 742 is specifically configured to:
  • the simulated cell signal strength information of the outdoor nth layer grid corresponding to the indoor nth layer grid and the simulation of the outdoor first layer grid are determined by simulation calculation.
  • Cell signal strength information wherein the horizontal position information of the outdoor first layer grid coincides with the horizontal position information of the outdoor nth layer grid corresponding to the nth floor grid in the room;
  • the simulated cell signal strength information of the outdoor n-th layer grid corresponding to the indoor n-th grid, the simulated cell signal strength information of the outdoor first-layer grid, and the outdoor first-layer grid determines the cell signal strength information of the outdoor nth layer grid corresponding to the nth floor grid in the room.
  • the first obtaining unit 742 is specifically configured to:
  • the simulated cell signal strength information of the n-1th layer grid and the simulated cell signal strength information of the outdoor nth layer grid are determined by simulation calculation, wherein, the outdoor The n-1 layer grid and the outdoor nth layer grid are the same as the indoor
  • the grid of the n-1th layer corresponding to the n-1 layer grid is identical in position information in the first direction and the second direction, and the height of the grid of the n-1th layer in the outdoor is the nth in the room.
  • the height of the grid of the first layer is equal
  • the height of the grid of the outer nth layer is equal to the height of the grid of the nth layer of the room;
  • the first obtaining unit 742 is specifically configured to:
  • the test data of the outdoor first layer grid corresponding to the grid of the first floor in the room is obtained, and the test data includes the level of the outdoor first layer grid corresponding to the grid of the first floor in the room.
  • the error data in the test data is deleted, wherein the variation of the attenuation of the cell signal strength with the distance is based on the cell signal strength information of the plurality of outdoor first-layer grids. Obtained horizontal position information of a plurality of outdoor first layer grids;
  • the cell signal strength information in the test data after the deletion of the error data is determined as the cell signal strength information of the outdoor first layer grid corresponding to the grid of the first floor in the room.
  • the first obtaining unit 742 is further configured to:
  • Deletion error based on cell signal strength information of a plurality of outdoor first layer grids having a distance from the grid of the first layer corresponding to the grid of the first layer in the room that is smaller than the second threshold The cell signal strength information in the test data after the data is smoothed;
  • the first obtaining unit 742 determines that the cell signal strength information in the test data after the error data is deleted is the cell signal strength information of the outdoor layer 1 grid corresponding to the grid of the first layer in the room, and includes:
  • the cell signal strength information after smoothing in the test data after the deletion of the error data is determined is the cell signal strength information of the outdoor first layer grid corresponding to the grid of the first floor in the room.
  • the module for determining the cell signal strength information of the grid in the room determines the outdoor area corresponding to the grid of the nth layer in the room according to the horizontal position information of the grid of the nth floor in the room.
  • the nth layer of the grid obtained by acquiring the corresponding outdoor nth layer of the grid
  • the cell signal strength information can determine the cell signal strength information of the nth layer of the grid in the room, so that the cell signal strength information of the indoor with high accuracy can be obtained, so that the device for indoor positioning can further realize high-precision indoor 3D positioning.
  • the indoor positioning apparatus 700 may further include a fourth determining module 750 for determining cell signal strength information of the grid in the indoor, the fourth determining module 750.
  • a third determining unit 751 configured to determine, according to the horizontal position information of the grid of the p-th floor in the room, the grid of the mth layer or the mth layer of the room corresponding to the grid of the p-th floor of the room Grid
  • a second acquiring unit 752 configured to acquire a cell of the mth layer of the indoor or the mth layer of the outdoor mesh corresponding to the grid of the pth layer of the indoor determined by the third determining unit 751 Signal strength information
  • a fourth determining unit 753 configured to: according to the grid acquired by the second acquiring unit 752, the grid of the mth layer corresponding to the grid of the pth layer in the indoor or the grid of the mth layer of the outdoor Signal strength information, determining cell signal strength information of a grid of the p-th floor in the room, where p is an integer greater than 1, m is a positive integer less than p, and the height of the first layer is a ground height, the p The height of the layer is higher than the ground level.
  • the third determining unit 751 is specifically configured to:
  • the fourth determining unit 753 is specifically configured to:
  • the third determining unit 751 is specifically configured to:
  • first outdoor grid and a second outdoor grid Determining a first outdoor grid and a second outdoor grid, the first outdoor grid and the second outdoor grid a grid of the first floor of the outdoor, wherein the relative positional relationship between the first outdoor grid and the second outdoor grid, and the indoor corresponding to the non-edge grid of the p-th floor in the room
  • the relative positional relationship between the edge grid of the p-th layer and the non-edge grid of the p-th floor in the room is the same, and the environmental correlation of the first outdoor grid and the non-edge grid of the p-th floor in the room are Corresponding the environmental correlation of the edge grid of the p-th floor of the room is consistent; wherein, the relative positional relationship between the first outdoor grid and the second outdoor grid is based on horizontal position information of the first outdoor grid The horizontal position information of the second outdoor grid is calculated; the edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor of the room and the non-edge of the p-th
  • the fourth determining unit 753 is specifically configured to:
  • the cell signal strength information determines the cell signal strength information of the non-edge grid of the p-th floor in the room.
  • the environmental correlation of the first outdoor grid includes a relative positional relationship between the first outdoor grid and an antenna of the base station; the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the room
  • the environmental correlation of the edge grid includes the relative positional relationship of the edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the room and the antenna of the base station.
  • the relative positional relationship between the first outdoor grid and the antenna of the base station is calculated according to the horizontal position information of the first outdoor grid, the height information, the horizontal position information of the antenna of the base station, and the height information; the p-th floor of the room
  • the relative positional relationship between the edge grid of the p-th floor of the room corresponding to the non-edge grid and the antenna of the base station is the edge of the p-th floor of the room corresponding to the non-edge grid of the p-th floor of the room.
  • m is equal to 1, that is, the fourth determining module 750 is based on cell signal strength information of the first layer of the grid corresponding to the grid of the p-th floor of the room or the grid of the first layer of the outdoor, The cell signal strength information of the grid of the p-th floor in the room is determined.
  • the apparatus 700 may further include a fifth determining module for determining cell signal strength information of the non-edge grid in the grid in the indoor, the fifth determining module package Includes:
  • a fifth determining unit configured to determine, according to the horizontal position information of the non-edge grid of the kth layer in the indoor, the kth layer of the indoor distance of the non-edge grid of the kth layer of the indoor is less than the third threshold An edge grid, the distance is calculated according to horizontal position information of the grid, where k is an integer greater than or equal to 1;
  • a third acquiring unit configured to acquire cell signal strength information of an edge raster of the kth layer in the indoor distance of the non-edge grid of the kth layer determined by the fifth determining unit that is smaller than a third threshold ;
  • a sixth determining unit configured to determine, according to engineering parameter information of the antenna of the base station, by using a simulation calculation, the edge grid of the kth layer of the indoor distance of the non-edge grid of the kth layer of the indoor is less than the third threshold Simulated cell signal strength information and simulated cell signal strength information of the non-edge grid of the kth layer in the room;
  • a seventh determining unit configured to: according to the simulated cell signal strength of the edge raster of the kth layer in the indoor distance of the non-edge grid of the kth layer determined by the sixth determining unit Information, simulated cell signal strength information of the non-edge grid of the kth layer in the room, and an indoor acquired by the third acquiring unit that is less than a third threshold of the non-edge grid of the kth layer in the room.
  • the cell signal strength information of the edge raster of the kth layer determines the cell signal strength information of the non-edge raster of the kth layer in the indoor.
  • the module for determining the cell signal strength information of the grid in the room determines the outdoor area corresponding to the grid of the nth layer in the room according to the horizontal position information of the grid of the nth floor in the room.
  • the grid of the first layer or the grid of the first layer of the room can be determined by acquiring the cell signal strength information of the corresponding outdoor first layer grid or the indoor first layer grid.
  • the cell signal strength information of the grid of the nth layer can obtain the cell signal strength information of the indoors with high accuracy, so that the device for indoor positioning can further realize high-precision indoor 3D positioning.
  • the indoor positioning device 700 may correspond to the execution body of the method according to the embodiment of the present invention, and the above and other operations of the respective modules in the indoor positioning device 700.
  • the details of the respective processes in FIG. 1 to FIG. 15 are respectively omitted.
  • the apparatus for indoor positioning provided by the embodiment of the present invention, by using the current cell signal strength information of the terminal to be located indoors and the cell signal in the indoor three-dimensional 3D positioning matching information
  • the intensity information is matched to determine the horizontal position information and the height information of the corresponding indoor grid, thereby determining the horizontal position of the terminal and the height of the terminal, and realizing a high-precision indoor
  • an embodiment of the present invention further provides an apparatus 800 for indoor positioning, which includes a processor 810, a memory 820, a transceiver 830, and a bus device 840, and a processor 810 and a memory 820.
  • the transceiver 830 is connected through a bus device 840, the memory 820 is used to store instructions, and the processor 810 is configured to execute instructions stored in the memory 820, wherein the transceiver 830 is configured to:
  • Processor 810 is used to:
  • the indoor 3D positioning matching information includes the cell signal strength information of the indoor grid and Corresponding relationship between horizontal position information and height information of the grid in the room;
  • the horizontal position information includes the first Position information in the direction and the second direction, the first direction and the second direction being two directions perpendicular to each other in a horizontal plane.
  • the apparatus for indoor positioning determines the corresponding indoor grid by matching the current cell signal strength information of the terminal to be located indoors with the cell signal strength information in the indoor three-dimensional 3D positioning matching information.
  • the grid and its horizontal position information and height information thereby determining the horizontal position of the terminal in the room and the height of the terminal, can achieve high-precision indoor 3D positioning.
  • the processor 810 may be a central processing unit (CPU), and the processor 810 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 820 can include read only memory and random access memory and provides instructions and data to the processor 1010. A portion of the memory 820 may also include a non-volatile random access memory. For example, the memory 820 can also store information of the device type.
  • the bus system 840 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 840 in the figure.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 810 or an instruction in the form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software modules can be located in random memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, etc., which are well established in the art.
  • the storage medium is located in the memory 820.
  • the processor 810 reads the information in the memory 820 and combines the hardware to perform the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the processor 810 is further configured to determine cell signal strength information of the grid in the indoor, specifically for performing the following steps:
  • the cell signal strength information of the grid of the nth floor in the room is determined based on the cell signal strength information of the nth floor raster of the outdoor corresponding to the grid of the nth floor in the room.
  • the processor 810 determines the nth layer of the room according to the horizontal position information of the grid of the nth layer in the room.
  • the raster of the nth floor of the outdoor corresponding to the grid may include:
  • the grid of the nth layer of the outdoor is determined to be smaller than the first threshold of the edge grid of the nth layer in the room, and the distance is according to the level of the grid. Calculated by location information;
  • the processor 810 determines the cell signal strength information of the grid of the nth layer in the indoor according to the cell signal strength information of the nth layer of the grid corresponding to the grid of the nth layer in the room, and may include:
  • the 810 determines the grid of the nth layer of the outdoor corresponding to the grid of the nth layer in the room according to the horizontal position information of the grid of the nth layer in the room, and may include:
  • first outdoor grid and a second outdoor grid Determining a first outdoor grid and a second outdoor grid, wherein the first outdoor grid and the second outdoor grid are outdoor n-th grids, wherein the first outdoor grid and the second outdoor grid are opposite a positional relationship, and a relative positional relationship between an edge grid of the nth layer of the interior corresponding to the non-edge grid of the nth layer in the interior and a non-edge grid of the nth layer of the interior, and the first outdoor grid
  • the environmental correlation is consistent with the environmental correlation of the n-th edge grid of the indoor corresponding to the non-edge grid of the nth layer in the room; wherein, the relative positions of the first outdoor grid and the second outdoor grid
  • the relationship is calculated according to the horizontal position information of the first outdoor grid and the horizontal position information of the second outdoor grid; the edge grid of the nth layer of the room corresponding to the non-edge grid of the nth layer in the room and
  • the processor 810 determines the cell signal strength information of the grid of the nth layer in the indoor according to the cell signal strength information of the nth layer of the grid corresponding to the grid of the nth layer in the room, and may include:
  • Cell signal according to cell signal strength information of the first outdoor grid, cell signal strength information of the second outdoor grid, and an edge raster of the nth layer of the indoor corresponding to the non-edge grid of the nth layer in the room
  • the intensity information determines cell signal strength information of the non-edge grid of the nth layer in the room.
  • the environmental correlation of the first outdoor grid includes a relative positional relationship between the first outdoor grid and the antenna of the base station; an edge grid of the nth layer of the indoor corresponding to the non-edge grid of the nth layer in the room
  • the environmental correlation of the grid includes the relative positional relationship between the edge grid of the nth layer in the room corresponding to the non-edge grid of the nth layer in the room and the antenna of the base station.
  • the relative positional relationship between the first outdoor grid and the antenna of the base station is calculated according to the horizontal position information of the first outdoor grid, the height information, and the horizontal position information and the height information of the antenna of the base station;
  • the relative positional relationship between the edge grid of the nth layer corresponding to the indoor non-edge grid of the layer and the antenna of the base station is the edge grid of the nth layer corresponding to the non-edge grid of the nth layer in the room
  • the horizontal position information, the height information, and the horizontal position information and height information of the antenna of the base station are calculated.
  • the processor 810 acquires the cell signal strength information of the outdoor nth layer of the grid corresponding to the nth layer of the indoors, and may include:
  • the simulated cell signal strength information of the outdoor nth layer grid corresponding to the indoor nth layer grid and the simulation of the outdoor first layer grid are determined by simulation calculation.
  • Cell signal strength information wherein the horizontal position information of the outdoor first layer grid coincides with the horizontal position information of the outdoor nth layer grid corresponding to the nth floor grid in the room;
  • the simulated cell signal strength information of the outdoor n-th layer grid corresponding to the indoor n-th grid, the simulated cell signal strength information of the outdoor first-layer grid, and the outdoor first-layer grid determines the cell signal strength information of the outdoor nth layer grid corresponding to the nth floor grid in the room.
  • the processor 810 obtains cell signal strength information of the nth layer of the outdoor layer corresponding to the grid of the nth layer in the room, and may include:
  • the simulated cell signal strength information of the n-1th layer grid and the simulated cell signal strength information of the outdoor nth layer grid are determined by simulation calculation, wherein, the outdoor The grid of the n-1 layer and the grid of the nth layer of the outdoor are both in the first direction and the second grid of the outdoor n-1th layer corresponding to the grid of the n-1th layer in the room.
  • the position information of the direction is the same, the height of the grid of the n-1th layer of the outdoor is equal to the height of the grid of the n-1th floor of the room, and the height of the grid of the nth layer of the outdoor is the height of the nth layer of the room.
  • the height of the grid is equal;
  • the processor 810 obtains cell signal strength information of the nth layer of the outdoor layer corresponding to the grid of the nth layer in the room, and may include:
  • the test data of the outdoor first layer grid corresponding to the grid of the first floor in the room is obtained, and the test data includes the level of the outdoor first layer grid corresponding to the grid of the first floor in the room.
  • the error data in the test data is deleted, wherein the variation of the attenuation of the cell signal strength with the distance is based on the cell signal strength information of the plurality of outdoor first-layer grids.
  • the horizontal position information of the grid of the first outdoor layer is obtained of;
  • the cell signal strength information in the test data after the deletion of the error data is determined as the cell signal strength information of the outdoor first layer grid corresponding to the grid of the first floor in the room.
  • the processor 810 may also be used to:
  • Deletion error based on cell signal strength information of a plurality of outdoor first layer grids having a distance from the grid of the first layer corresponding to the grid of the first layer in the room that is smaller than the second threshold The cell signal strength information in the test data after the data is smoothed;
  • the processor 810 determines that the cell signal strength information in the test data after the error data is deleted is the cell signal strength information of the outdoor layer 1 grid corresponding to the grid of the first layer of the indoor, and may include:
  • the cell signal strength information after smoothing in the test data after the deletion of the error data is determined is the cell signal strength information of the outdoor first layer grid corresponding to the grid of the first floor in the room.
  • the processor 810 is further configured to determine cell signal strength information of the grid in the indoor, specifically for performing the following steps:
  • the grid of the mth layer of the room corresponding to the grid of the pth layer of the room or the grid of the mth layer of the outdoor is determined
  • the cell signal of the grid of the p-th floor of the room according to the cell signal strength information of the grid of the mth layer in the room corresponding to the grid of the p-th floor in the room or the grid of the m-th floor of the outdoor Intensity information, where p is an integer greater than 1, m is a positive integer less than p, the height of the first layer is the ground height, and the height of the p-th layer is higher than the ground height.
  • the processor when the grid of the pth layer in the room is the edge grid of the pth layer in the room, the processor
  • a grid of the first layer in the room corresponding to the grid of the p-th floor in the room or a grid of the first layer of the outdoor may include:
  • the processor 810 is based on the gate of the first layer in the room corresponding to the grid of the p-th floor in the room.
  • the cell signal strength information of the grid of the first layer of the cell or the outdoor, and the cell signal strength information of the grid of the first layer in the room may be determined, and may include:
  • the processor 810 determines the number of the indoors according to the horizontal position information of the grid of the p-th floor in the room.
  • the grid of the first layer of the room corresponding to the grid of the p layer or the grid of the first layer of the outdoor may include: determining the non-edge of the p-th layer in the direction of the horizontal position information and the indoor The edge grid of the p-th floor of the room corresponding to the grid;
  • first outdoor grid and a second outdoor grid wherein the first outdoor grid and the second outdoor grid are both outdoor first layer grids, wherein the first outdoor grid and the a relative positional relationship of the second outdoor grid, and an edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor of the room and a non-edge of the p-th floor of the room.
  • the relative positional relationship of the grids is uniform, and the environmental correlation of the first outdoor grid and the environment of the edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the room
  • the relative positional relationship of the first outdoor grid and the second outdoor grid is based on horizontal position information of the first outdoor grid and horizontal position information of the second outdoor grid.
  • the processor 810 determines the p-th floor of the room based on the cell signal strength information of the first layer of the grid corresponding to the grid of the p-th floor in the room or the grid of the first layer of the outdoor
  • the cell signal strength information of the grid may include:
  • the cell signal strength information of the edge raster determines the cell signal strength information of the non-edge raster of the p-th floor in the indoor.
  • the environmental correlation of the first outdoor grid includes a relative positional relationship between the first outdoor grid and an antenna of the base station; and the corresponding to the non-edge grid of the p-th floor in the indoor Room
  • the environmental correlation of the edge grid of the p-th layer in the inner layer includes the edge grid of the p-th floor of the room corresponding to the non-edge grid of the p-th floor in the room and the antenna of the base station Relative positional relationship.
  • the relative positional relationship between the first outdoor grid and the antenna of the base station is calculated according to the horizontal position information of the first outdoor grid, the height information, and the horizontal position information and the height information of the antenna of the base station;
  • the relative positional relationship between the edge grid of the p-th floor of the indoor corresponding to the non-edge grid of the p-th floor of the indoor and the antenna of the base station is corresponding to the non-edge grid of the p-th floor of the room.
  • the horizontal position information of the edge raster of the p-th floor in the room, the height information, the horizontal position information of the antenna of the base station, and the height information are calculated.
  • the processor 810 is further configured to determine cell signal strength information of the non-edge grid in the grid in the indoor, where the specific steps include:
  • an edge grid of the kth layer of the indoor distance of the non-edge grid of the kth layer of the room is less than a third threshold, the distance is Calculated according to the horizontal position information of the grid, where k is an integer greater than or equal to 1; obtaining the k-th floor of the room where the distance from the non-edge grid of the kth layer in the room is less than the third threshold Cell signal strength information of the edge grid;
  • Determining, according to the engineering parameter information of the antenna of the base station, the simulated cell signal strength information of the edge raster of the kth layer in the indoor distance of the non-edge grid of the kth layer in the indoor is determined by simulation calculation and Simulated cell signal strength information of the non-edge grid of the kth layer in the room; according to the edge grid of the kth layer of the room having a distance smaller than the third threshold from the non-edge grid of the kth layer in the room.
  • the simulated cell signal strength information, the simulated cell signal strength information of the non-edge grid of the kth layer in the room, and the kth layer of the indoor distance from the non-edge grid of the kth layer in the room is less than the third threshold
  • the cell signal strength information of the edge raster determines the cell signal strength information of the edge raster of the kth layer in the indoor.
  • the indoor positioning device 800 may correspond to the execution body of the method according to the embodiment of the present invention, and may also correspond to the indoor positioning device 700, and the device 800
  • the above and other operations and/or functions of the respective modules in order to implement the respective processes of the respective methods in FIG. 1 to FIG. 15 are omitted for brevity.
  • the apparatus for indoor positioning determines the corresponding indoor grid by matching the current cell signal strength information of the terminal to be located indoors with the cell signal strength information in the indoor three-dimensional 3D positioning matching information.
  • Horizontal position information and height information thereby Determine the horizontal position of the terminal in the room and the height of the terminal, which can achieve high precision indoors.
  • the device for indoor positioning provided by the embodiment of the present invention may be deployed in the base station in the form of a function module, or may be a separate positioning server, which is not limited by the embodiment of the present invention.
  • FIG. 20 is a schematic structural diagram of a base station having an indoor positioning function according to an embodiment of the present invention.
  • the base station 900 includes a transmitting circuit 910.
  • Processor 930 controls the operation of base station 900, which may include one or more modules for positioning.
  • Memory 940 can include read only memory and random access memory and provides instructions and data to processor 930. Portions of memory 940 may also include non-volatile line random access memory (NVRAM). Specifically, in the embodiment of the present invention, the memory 940 can be used to store indoor positioning matching information.
  • NVRAM non-volatile line random access memory
  • base station 900 can include a carrier that houses transmit circuitry 910 and receive circuitry 920 to allow for data transmission and reception between base station 900 and remote locations. Transmitting circuit 910 and receiving circuit 920 can be coupled to antenna 970.
  • the various components of base station 900 are coupled together by a bus system 980, which in addition to the data bus includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 980 in the figure.
  • Base station 900 can also include an encoding processor 950 and a decoding processor 960 for encoding and decoding the transmitted or received signals.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 930, or may be implemented by the processor 930.
  • the apparatus for indoor positioning in the foregoing embodiment of the present invention may be specifically implemented by the base station shown in FIG.
  • Processor 930 may be an integrated circuit chip with the ability to execute instructions and data, as well as the processing capabilities of the signals.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 930 or an instruction in a form of software.
  • the above processor may be a general purpose processor (CPU), a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or a transistor logic device, Discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • Software modules can be located in random access memory, flash memory, read-only memory, programmable read-only Memory or electrically erasable programmable memory, registers, etc. are well established in the field of storage media.
  • the storage medium is located in the memory 940, and the processor reads the information in the memory 940 and combines the hardware to perform the steps of the above method.
  • the base station is illustratively listed as one or three.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the execution order of each process should be determined by its function and internal logic, and should not be implemented in the embodiments of the present invention.
  • the process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of cells is only a logical function division.
  • multiple units or components may be combined or integrated. Go to another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect connection or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the components displayed by the meta may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • An integrated unit if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开了一种室内定位的方法和装置,该方法包括:获取处于室内的终端的当前小区信号强度信息;根据室内三维3D定位匹配信息,确定与当前小区信号强度信息对应的室内的栅格的水平位置信息和高度信息,其中,室内3D定位匹配信息包括室内的栅格的小区信号强度信息与室内的栅格的水平位置信息和高度信息的对应关系;根据与当前小区信号强度信息对应的室内的栅格的水平位置信息和高度信息,确定终端在室内所处的水平位置和终端所处的高度。本发明实施例的室内定位的方法和装置,通过将终端的当前小区信号强度信息与室内三维3D定位匹配信息中的小区信号强度信息相匹配,确定终端在室内所处的水平位置和高度,可以实现高精度的室内3D定位。

Description

室内定位的方法和装置 技术领域
本发明实施例涉及通信技术领域, 并且更具体地, 涉及室内定位的方法 和装置。 背景技术
随着通信技术及其应用的飞速发展,基于通信的定位技术受到越来越多 的关注。 用户的位置信息是许多创新增值业务和应用的基础, 例如, 定位技 术可以应用于无线网络精细化优化和问题分析, 或者应用于安防、 定向广告 推送、 导航等领域。 目前的定位技术一般是室外地面水平维度的 2D ( Two Dimensions, 二维) 定位, 常用方法有基于无线信号特征的特征匹配法、 基 于时延的双曲线法等。 传统的基于无线通信信号的 2D定位无法进行精确的 室内和室外用户区分, 同时对于室内用户无法进行高度维度的定位。 然而, 业界统计表明 70%以上的语音业务及 80%以上的数据业务都发生在室内,因 此对用户进行室内定位至关重要。
较常用的定位技术如通过 GPS ( Global Positioning System, 全球定位系 统)进行定位, 是利用导航卫星进行终端位置的定位, 由于室内环境对 GPS 信号会产生遮挡和衰减, 导致无法进行室内定位。 一些常用的室内定位方法 如 Wi-Fi室内 3D定位, 是利用室内部署的多个 Wi-Fi接入点进行用户位置 的定位。 Wi-Fi室内定位的主要不足是场景适应性差, 只有在部署 Wi-Fi的 建筑物和楼层才能进行相应地定位, 而实际中大部分建筑物或建筑物部分楼 层并无部署 Wi-Fi, 导致这些场景无法用 Wi-Fi进行室内 3D定位。
因此, 当前还无法实现精度高、 场景适应性强的室内 3D定位, 以准确 地确定待定位终端在室内所处的水平位置和终端所处的高度, 限制了基于用 户位置信息的创新增值业务的应用。 发明内容
本发明实施例提供一种室内定位的方法和装置, 可以确定待定位终端在 室内所处的水平位置和终端所处的高度, 从而实现高精度的室内 3D定位。
第一方面, 提供了一种室内定位的方法, 该包括: 获取处于室内的终端的当前小区信号强度信息;
才艮据室内三维 3D定位匹配信息, 确定与所述当前小区信号强度信息对 应的室内的栅格的水平位置信息和高度信息, 其中, 所述室内 3D定位匹配 信息包括室内的栅格的小区信号强度信息与所述室内的栅格的水平位置信 息和高度信息的对应关系;
根据所述与所述当前小区信号强度信息对应的室内的栅格的水平位置 信息和高度信息,确定所述终端在所述室内所处的水平位置和所述终端所处 的高度, 其中, 所述水平位置信息包括第一方向和第二方向的位置信息, 所 述第一方向和所述第二方向为水平面内相互垂直的两个方向。
结合第一方面, 在第一方面的第一种可能的实现方式中, 所述室内的栅 格的小区信号强度信息由以下步骤确定:
根据室内的第 n层的栅格的水平位置信息,确定与所述室内的第 n层的 栅格相对应的室外的第 n层的栅格, 其中, n为大于或等于 1的整数;
获取所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的小 区信号强度信息;
根据所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的小 区信号强度信息, 确定所述室内的第 n层的栅格的小区信号强度信息。
结合第一方面的第一种可能的实现方式,在第一方面的第二种可能的实 现方式中, 当所述室内的第 n层的栅格为室内的第 n层的边缘栅格时,
所述根据室内的第 n层的栅格的水平位置信息, 确定与所述室内的第 n 层的栅格相对应的室外的第 n层的栅格, 包括:
才艮据所述室内的第 n层的边缘栅格的水平位置信息,确定与所述室内的 第 n层的边缘栅格的距离小于第一阔值的室外的第 n层的栅格, 所述距离是 根据栅格的水平位置信息计算得到的;
所述根据所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格 的小区信号强度信息, 确定所述室内的第 n层的栅格的小区信号强度信息, 包括:
根据所述与所述室内的第 n层的边缘栅格的距离小于第一阔值的室外的 第 n层的栅格的小区信号强度信息及墙内外信号强度的损耗关系,确定所述 室内的第 n层的边缘栅格的小区信号强度信息。
结合第一方面的第一种可能的实现方式,在第一方面的第三种可能的实 现方式中, 当所述室内的第 n层的栅格为室内的第 n层的非边缘栅格时, 所述根据室内的第 n层的栅格的水平位置信息, 确定与所述室内的第 n 层的栅格相对应的室外的第 n层的栅格, 包括:
确定在水平位置信息中的任一方向上与所述室内的第 n层的非边缘栅格 相对应的室内的第 n层的边缘栅格;
确定第一室外栅格和第二室外栅格,所述第一室外栅格和所述第二室外 栅格均为室外的第 n层的栅格, 其中, 所述第一室外栅格和所述第二室外栅 格的相对位置关系, 和与所述室内的第 n层的非边缘栅格相对应的所述室内 的第 n层的边缘栅格和所述室内的第 n层的非边缘栅格的相对位置关系一 致, 并且所述第一室外栅格的环境相关度和与所述室内的第 n层的非边缘栅 格相对应的所述室内的第 n层的边缘栅格的环境相关度一致; 其中, 所述第 一室外栅格和所述第二室外栅格的相对位置关系是根据所述第一室外栅格 的水平位置信息和所述第二室外栅格的水平位置信息计算得到的; 所述与所 述室内的第 n层的非边缘栅格相对应的所述室内的第 n层的边缘栅格和所述 室内的第 n层的非边缘栅格的相对位置关系是根据与所述室内的第 n层的非 边缘栅格相对应的所述室内的第 n层的边缘栅格的水平位置信息和所述室内 的第 n层的非边缘栅格的水平位置信息计算得到的;
所述根据所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格 的小区信号强度信息, 确定所述室内的第 n层的栅格的小区信号强度信息, 包括:
根据所述第一室外栅格的小区信号强度信息、所述第二室外栅格的小区 信号强度信息, 以及与所述室内的第 n层的非边缘栅格相对应的所述室内的 第 n层的边缘栅格的小区信号强度信息,确定所述室内的第 n层的非边缘栅 格的小区信号强度信息。
结合第一方面的第三种可能的实现方式,在第一方面的第四种可能的实 现方式中, 所述第一室外栅格的环境相关度包括所述第一室外栅格与基站的 天线的相对位置关系; 所述与所述室内的第 n层的非边缘栅格相对应的所述 室内的第 n层的边缘栅格的环境相关度包括所述与所述室内的第 n层的非边 缘栅格相对应的所述室内的第 n层的边缘栅格与所述基站的天线的相对位置 关系。
结合第一方面的第四种可能的实现方式,在第一方面的第五种可能的实 现方式中, 所述第一室外栅格和基站的天线的相对位置关系是根据所述第一 室外栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度信 息计算得到的; 所述室内的第 n层的非边缘栅格相对应的所述室内的第 n层 的边缘栅格和基站的天线的相对位置关系是根据所述室内的第 n层的非边缘 栅格相对应的所述室内的第 n层的边缘栅格的水平位置信息、 高度信息和基 站的天线的水平位置信息、 高度信息计算得到的。
结合第一方面的第一种至第五种可能的实现方式中的任一种实现方式, 在第一方面的第六种可能的实现方式中, 当 n大于 1时, 所述获取所述与所 述室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息, 包括:
根据基站的天线的工程参数信息, 通过仿真计算确定与所述室内的第 n 层的栅格相对应的所述室外的第 n层的栅格的仿真小区信号强度信息和室外 的第 1层的栅格的仿真小区信号强度信息, 其中, 所述室外的第 1层的栅格 的水平位置信息和所述与所述室内的第 n层的栅格相对应的所述室外的第 n 层的栅格的水平位置信息一致;
根据所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的仿 真小区信号强度信息、所述室外的第 1层的栅格的仿真小区信号强度信息和 所述室外的第 1层的栅格的小区信号强度信息, 确定所述与所述室内的第 n 层的栅格相对应的室外的第 n层的栅格的小区信号强度信息。
结合第一方面的第一种至第五种可能的实现方式中的任一种实现方式, 在第一方面的第七种可能的实现方式中, 当 n大于 1时, 所述获取所述与所 述室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息, 包括:
根据基站的天线的工程参数信息, 通过仿真计算确定室外的第 n-1层的 栅格的仿真小区信号强度信息和室外的第 n层的栅格的仿真小区信号强度信 息, 其中, 所述室外的第 n-1层的栅格和所述室外的第 n层的栅格均与所述 与所述室内的第 n-1层的栅格相对应的室外的第 n-1层的栅格在所述第一方 向和所述第二方向的位置信息一致, 室外的第 n-1层的栅格的高度与室内的 第 n-1层的栅格的高度相等, 室外的第 n层的栅格的高度与室内的第 n层的 栅格的高度相等;
确定所述室外的第 n-1层的栅格的小区信号强度信息; 根据所述室外的第 n-1层的栅格的仿真小区信号强度信息、 室外的第 n 层的栅格的仿真小区信号强度信息以及所述室外的第 n-1层的栅格的小区信 号强度信息, 确定所述室外的第 n层的栅格的小区信号强度信息。
结合第一方面的第一种至第五种可能的实现方式中的任一种实现方式, 在第一方面的第八种可能的实现方式中, 当 n等于 1时, 所述获取所述与所 述室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息, 包括:
获取所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的测 试数据, 所述测试数据包括所述与所述室内的第 1层的栅格相对应的室外的 第 1层的栅格的水平位置信息和小区信号强度信息;
根据小区信号强度的衰减随距离的变化规律,删除所述测试数据中的误 差数据, 其中, 所述小区信号强度的衰减随距离的变化规律是根据多个室外 的第 1层的栅格的小区信号强度信息和多个室外的第 1层的栅格的水平位置 信息得到的;
确定删除误差数据后的所述测试数据中的小区信号强度信息为所述与 所述室内的第 1 层的栅格相对应的室外的第 1 层的栅格的小区信号强度信 息。
结合第一方面的第八种可能的实现方式,在第一方面的第九种可能的实 现方式中, 在根据小区信号强度的衰减随距离的变化规律, 删除所述测试数 据中的误差数据之后, 所述方法还包括:
根据与所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的 距离小于第二阔值的多个室外的第 1层的栅格的小区信号强度信息,对删除 误差数据后的所述测试数据中的小区信号强度信息进行平滑处理;
所述确定删除误差数据后的所述测试数据中的小区信号强度信息为所 述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的小区信号强度 信息, 包括:
确定删除误差数据后的所述测试数据中经过所述平滑处理后的小区信 号强度信息为所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格 的小区信号强度信息。
结合第一方面的第一种可能的实现方式,在第一方面的第十种可能的实 现方式中, 所述室内的栅格的小区信号强度信息由以下步骤确定: 根据室内的第 p层的栅格的水平位置信息,确定与所述室内的第 p层的 栅格相对应的室内的第 m层的栅格或室外的第 m层的栅格;
获取所述与所述室内的第 p层的栅格相对应的室内的第 m层的栅格或室 外的第 m层的栅格的小区信号强度信息;
根据所述与所述室内的第 p层的栅格相对应的室内的第 m层的栅格或室 外的第 m层的栅格的小区信号强度信息,确定所述室内的第 p层的栅格的小 区信号强度信息, 其中, p为大于 1的整数, m为小于 p的正整数, 所述第 p层的高度高于地面高度。
结合第一方面的第十种可能的实现方式,在第一方面的第十一种可能的 实现方式中, 当所述室内的第 p层的栅格为室内的第 p层的边缘栅格时, 所述根据室内的第 p层的栅格的水平位置信息, 确定与所述室内的第 p 层的栅格相对应的室内的第 1层的栅格或室外的第 1层的栅格, 包括:
确定与所述室内的第 p层的边缘栅格相对应的室内的第 1 层的边缘栅 格, 其中, 所述与所述室内的第 p层的边缘栅格相对应的室内的第 1层的边 缘栅格的水平位置信息与所述室内的第 p层的栅格的水平位置信息一致; 所述根据所述与所述室内的第 p层的栅格相对应的室内的第 1层的栅格 或室外的第 1层的栅格的小区信号强度信息,确定所述室内的第 1层的栅格 的小区信号强度信息, 包括:
根据所述与所述室内的第 p层的边缘栅格相对应的室内的第 1层的边缘 栅格的小区信号强度信息及楼层间信号强度的损耗关系,确定所述室内的第 p层的边缘栅格的小区信号强度信息。
结合第一方面的第十种可能的实现方式,在第一方面的第十二种可能的 实现方式中, 当所述室内的第 p层的栅格为室内的第 p层的非边缘栅格时, 所述根据室内的第 p层的栅格的水平位置信息, 确定与所述室内的第 p 层的栅格相对应的室内的第 1层的栅格或室外的第 1层的栅格, 包括:
确定在水平位置信息中的任一方向上与所述室内的第 p层的非边缘栅格 相对应的室内的第 p层的边缘栅格;
确定第一室外栅格和第二室外栅格,所述第一室外栅格和所述第二室外 栅格均为室外的第 1层的栅格, 其中, 所述第一室外栅格和所述第二室外栅 格的相对位置关系, 和与所述室内的第 p层的非边缘栅格相对应的所述室内 的第 p层的边缘栅格和所述室内的第 p层的非边缘栅格的相对位置关系一 致, 并且所述第一室外栅格的环境相关度和与所述室内的第 p层的非边缘栅 格相对应的所述室内的第 p层的边缘栅格的环境相关度一致; 其中, 所述第 一室外栅格和所述第二室外栅格的相对位置关系是根据所述第一室外栅格 的水平位置信息和所述第二室外栅格的水平位置信息计算得到的; 所述与所 述室内的第 p层的非边缘栅格相对应的所述室内的第 p层的边缘栅格和所述 室内的第 p层的非边缘栅格的相对位置关系是根据与所述室内的第 p层的非 边缘栅格相对应的所述室内的第 p层的边缘栅格的水平位置信息和所述室内 的第 p层的非边缘栅格的水平位置信息计算得到的;
所述根据所述与所述室内的第 p层的栅格相对应的室内的第 1层的栅格 或室外的第 1层的栅格的小区信号强度信息,确定所述室内的第 p层的栅格 的小区信号强度信息, 包括:
根据所述第一室外栅格的小区信号强度信息、所述第二室外栅格的小区 信号强度信息和与所述室内的第 p层的非边缘栅格相对应的所述室内的第 p 层的边缘栅格的小区信号强度信息,确定所述室内的第 p层的非边缘栅格的 小区信号强度信息。
结合第一方面的第十二种可能的实现方式,在第一方面的第十三种可能 的实现方式中, 所述第一室外栅格的环境相关度包括所述第一室外栅格与基 站的天线的相对位置关系; 所述与所述室内的第 p层的非边缘栅格相对应的 所述室内的第 p层的边缘栅格的环境相关度包括所述与所述室内的第 p层的 非边缘栅格相对应的所述室内的第 p层的边缘栅格与所述基站的天线的相对 位置关系。
结合第一方面的第十三种可能的实现方式,在第一方面的第十四种可能 的实现方式中, 所述第一室外栅格和基站的天线的相对位置关系是根据所述 第一室外栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高 度信息计算得到的; 所述室内的第 p层的非边缘栅格相对应的所述室内的第 p层的边缘栅格和基站的天线的相对位置关系是根据所述室内的第 p层的非 边缘栅格相对应的所述室内的第 p层的边缘栅格的水平位置信息、 高度信息 和基站的天线的水平位置信息、 高度信息计算得到的。
结合第一方面的第十种至第十四种可能的实现方式中的任一种实现方 式, 在第一方面的第十五种可能的实现方式中, m等于 1。
结合第一方面, 在第一方面的第十六种可能的实现方式中, 室内的栅格 中的非边缘栅格的小区信号强度信息由以下步骤确定:
根据室内的第 k层的非边缘栅格的水平位置信息,确定与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格, 所述距 离是根据栅格的水平位置信息计算得到的,其中, k为大于或等于 1的整数; 获取所述与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内 的第 k层的边缘栅格的小区信号强度信息;
根据基站的天线的工程参数信息,通过仿真计算确定所述与所述室内的 第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的仿真 小区信号强度信息和所述室内的第 k层的非边缘栅格的仿真小区信号强度信 息;
根据所述与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内 的第 k层的边缘栅格的仿真小区信号强度信息、所述室内的第 k层的非边缘 栅格的仿真小区信号强度信息和所述与所述室内的第 k层的非边缘栅格的距 离小于第三阔值的室内的第 k层的边缘栅格的小区信号强度信息,确定所述 室内的第 k层的非边缘栅格的小区信号强度信息。
第二方面, 提供了一种室内定位的装置, 该装置包括:
获取模块, 用于获取处于室内的终端的当前小区信号强度信息; 第一确定模块, 用于根据室内三维 3D定位匹配信息, 确定与所述获取 模块获取的所述当前小区信号强度信息对应的室内的栅格的水平位置信息 和高度信息, 其中, 所述室内 3D定位匹配信息包括室内的栅格的小区信号 强度信息与所述室内的栅格的水平位置信息和高度信息的对应关系;
第二确定模块,用于根据所述第一确定模块确定的所述与所述当前小区 信号强度信息对应的室内的栅格的水平位置信息和高度信息,确定所述终端 在所述室内所处的水平位置和所述终端所处的高度, 其中, 所述水平位置信 息包括第一方向和第二方向的位置信息, 所述第一方向和所述第二方向为水 平面内相互垂直的两个方向。
结合第二方面, 在第二方面的第一种可能的实现方式中, 该装置还包括 用于确定所述室内的栅格的小区信号强度信息的第三确定模块, 该第三确定 模块包括:
第一确定单元, 用于根据室内的第 n层的栅格的水平位置信息, 确定与 所述室内的第 n层的栅格相对应的室外的第 n层的栅格, 其中, n为大于或 等于 1的整数;
第一获取单元,用于获取所述第一确定单元确定的所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息;
第二确定单元,用于根据所述第一获取单元获取的所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息, 确定所述室 内的第 n层的栅格的小区信号强度信息。
结合第二方面的第一种可能的实现方式,在第二方面的第二种可能的实 现方式中, 当所述室内的第 n层的栅格为室内的第 n层的边缘栅格时, 所述第一确定单元具体用于:
才艮据所述室内的第 n层的边缘栅格的水平位置信息,确定与所述室内的 第 n层的边缘栅格的距离小于第一阔值的室外的第 n层的栅格, 所述距离是 根据栅格的水平位置信息计算得到的;
所述第二确定单元具体用于:
根据所述与所述室内的第 n层的边缘栅格的距离小于第一阔值的室外的 第 n层的栅格的小区信号强度信息及墙内外信号强度的损耗关系,确定所述 室内的第 n层的边缘栅格的小区信号强度信息。
结合第二方面的第一种可能的实现方式,在第二方面的第三种可能的实 现方式中, 当所述室内的第 n层的栅格为室内的第 n层的非边缘栅格时, 所述第一确定单元具体用于:
确定在水平位置信息中的任一方向上与所述室内的第 n层的非边缘栅格 相对应的室内的第 n层的边缘栅格;
确定第一室外栅格和第二室外栅格,所述第一室外栅格和所述第二室外 栅格均为室外的第 n层的栅格, 其中, 所述第一室外栅格和所述第二室外栅 格的相对位置关系, 和与所述室内的第 n层的非边缘栅格相对应的所述室内 的第 n层的边缘栅格和所述室内的第 n层的非边缘栅格的相对位置关系一 致, 并且所述第一室外栅格的环境相关度和与所述室内的第 n层的非边缘栅 格相对应的所述室内的第 n层的边缘栅格的环境相关度一致; 其中, 所述第 一室外栅格和所述第二室外栅格的相对位置关系是根据所述第一室外栅格 的水平位置信息和所述第二室外栅格的水平位置信息计算得到的; 所述与所 述室内的第 n层的非边缘栅格相对应的所述室内的第 n层的边缘栅格和所述 室内的第 n层的非边缘栅格的相对位置关系是根据与所述室内的第 n层的非 边缘栅格相对应的所述室内的第 n层的边缘栅格的水平位置信息和所述室内 的第 n层的非边缘栅格的水平位置信息计算得到的;
所述第二确定单元具体用于:
根据所述第一室外栅格的小区信号强度信息、所述第二室外栅格的小区 信号强度信息, 以及与所述室内的第 n层的非边缘栅格相对应的所述室内的 第 n层的边缘栅格的小区信号强度信息,确定所述室内的第 n层的非边缘栅 格的小区信号强度信息。
结合第二方面的第三种可能的实现方式,在第二方面的第四种可能的实 现方式中, 所述第一室外栅格的环境相关度包括所述第一室外栅格与基站的 天线的相对位置关系; 所述与所述室内的第 n层的非边缘栅格相对应的所述 室内的第 n层的边缘栅格的环境相关度包括所述与所述室内的第 n层的非边 缘栅格相对应的所述室内的第 n层的边缘栅格与所述基站的天线的相对位置 关系。
结合第二方面的第四种可能的实现方式,在第二方面的第五种可能的实 现方式中, 所述第一室外栅格和基站的天线的相对位置关系是根据所述第一 室外栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度信 息计算得到的; 所述室内的第 n层的非边缘栅格相对应的所述室内的第 n层 的边缘栅格和基站的天线的相对位置关系是根据所述室内的第 n层的非边缘 栅格相对应的所述室内的第 n层的边缘栅格的水平位置信息、 高度信息和基 站的天线的水平位置信息、 高度信息计算得到的。
结合第二方面的第一种至第五种可能的实现方式中的任一种实现方式, 在第二方面的第六种可能的实现方式中, 当 n大于 1时, 所述第一获取单元 具体用于:
根据基站的天线的工程参数信息, 通过仿真计算确定与所述室内的第 n 层的栅格相对应的所述室外的第 n层的栅格的仿真小区信号强度信息和室外 的第 1层的栅格的仿真小区信号强度信息, 其中, 所述室外的第 1层的栅格 的水平位置信息和所述与所述室内的第 n层的栅格相对应的所述室外的第 n 层的栅格的水平位置信息一致;
根据所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的仿 真小区信号强度信息、所述室外的第 1层的栅格的仿真小区信号强度信息和 所述室外的第 1层的栅格的小区信号强度信息, 确定所述与所述室内的第 n 层的栅格相对应的室外的第 n层的栅格的小区信号强度信息。
结合第二方面的第一种至第五种可能的实现方式中的任一种实现方式, 在第二方面的第七种可能的实现方式中, 当 n大于 1时, 所述第一获取单元 具体用于:
根据基站的天线的工程参数信息, 通过仿真计算确定室外的第 n-1层的 栅格的仿真小区信号强度信息和室外的第 n层的栅格的仿真小区信号强度信 息, 其中, 所述室外的第 n-1层的栅格和所述室外的第 n层的栅格均与所述 与所述室内的第 n-1层的栅格相对应的室外的第 n-1层的栅格在所述第一方 向和所述第二方向的位置信息一致, 室外的第 n-1层的栅格的高度与室内的 第 n-1层的栅格的高度相等, 室外的第 n层的栅格的高度与室内的第 n层的 栅格的高度相等;
确定所述室外的第 n-1层的栅格的小区信号强度信息;
根据所述室外的第 n-1层的栅格的仿真小区信号强度信息、 室外的第 n 层的栅格的仿真小区信号强度信息以及所述室外的第 n-1层的栅格的小区信 号强度信息, 确定所述室外的第 n层的栅格的小区信号强度信息。
结合第二方面的第一种至第五种可能的实现方式中的任一种实现方式, 在第二方面的第八种可能的实现方式中, 当 n等于 1时, 所述第一获取单元 具体用于:
获取所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的测 试数据, 所述测试数据包括所述与所述室内的第 1层的栅格相对应的室外的 第 1层的栅格的水平位置信息和小区信号强度信息;
根据小区信号强度的衰减随距离的变化规律,删除所述测试数据中的误 差数据, 其中, 所述小区信号强度的衰减随距离的变化规律是根据多个室外 的第 1层的栅格的小区信号强度信息和多个室外的第 1层的栅格的水平位置 信息得到的;
确定删除误差数据后的所述测试数据中的小区信号强度信息为所述与 所述室内的第 1 层的栅格相对应的室外的第 1 层的栅格的小区信号强度信 息。
结合第二方面的第八种可能的实现方式,在第二方面的第九种可能的实 现方式中, 在所述第一获取单元根据小区信号强度的衰减随距离的变化规 律, 删除所述测试数据中的误差数据之后, 所述第一获取单元还用于: 根据与所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的 距离小于第二阔值的多个室外的第 1层的栅格的小区信号强度信息,对删除 误差数据后的所述测试数据中的小区信号强度信息进行平滑处理;
所述第一获取单元确定删除误差数据后的所述测试数据中的小区信号 强度信息为所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的 小区信号强度信息, 包括:
确定删除误差数据后的所述测试数据中经过所述平滑处理后的小区信 号强度信息为所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格 的小区信号强度信息。
结合第二方面的第一种可能的实现方式,在第二方面的第十种可能的实 现方式中, 该装置还包括用于确定所述室内的栅格的小区信号强度信息的第 四确定模块, 该第四确定模块包括:
第三确定单元, 用于根据室内的第 p层的栅格的水平位置信息, 确定与 所述室内的第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m层的 栅格;
第二获取单元,用于获取所述第三确定单元确定的所述与所述室内的第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m层的栅格的小区信 号强度信息
第四确定单元,用于根据所述第二获取单元获取的所述与所述室内的第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m层的栅格的小区信 号强度信息, 确定所述室内的第 p层的栅格的小区信号强度信息, 其中, p 为大于 1的整数, m为小于 p的正整数, 所述第 p层的高度高于地面高度。
结合第二方面的第十种可能的实现方式,在第二方面的第十一种可能的 实现方式中, 当所述室内的第 p层的栅格为室内的第 p层的边缘栅格时, 所述第三确定单元具体用于:
确定与所述室内的第 p层的边缘栅格相对应的室内的第 1 层的边缘栅 格, 其中, 所述与所述室内的第 p层的边缘栅格相对应的室内的第 1层的边 缘栅格的水平位置信息与所述室内的第 p层的栅格的水平位置信息一致; 所述第四确定单元具体用于:
根据所述与所述室内的第 p层的边缘栅格相对应的室内的第 1层的边缘 栅格的小区信号强度信息及楼层间信号强度的损耗关系,确定所述室内的第 p层的边缘栅格的小区信号强度信息。
结合第二方面的第十种可能的实现方式,在第二方面的第十二种可能的 实现方式中, 当所述室内的第 p层的栅格为室内的第 p层的非边缘栅格时, 所述第三确定单元具体用于:
确定在水平位置信息中的任一方向上与所述室内的第 p层的非边缘栅格 相对应的室内的第 p层的边缘栅格;
确定第一室外栅格和第二室外栅格,所述第一室外栅格和所述第二室外 栅格均为室外的第 1层的栅格, 其中, 所述第一室外栅格和所述第二室外栅 格的相对位置关系, 和与所述室内的第 p层的非边缘栅格相对应的所述室内 的第 p层的边缘栅格和所述室内的第 p层的非边缘栅格的相对位置关系一 致, 并且所述第一室外栅格的环境相关度和与所述室内的第 p层的非边缘栅 格相对应的所述室内的第 p层的边缘栅格的环境相关度一致; 其中, 所述第 一室外栅格和所述第二室外栅格的相对位置关系是根据所述第一室外栅格 的水平位置信息和所述第二室外栅格的水平位置信息计算得到的; 所述与所 述室内的第 p层的非边缘栅格相对应的所述室内的第 p层的边缘栅格和所述 室内的第 p层的非边缘栅格的相对位置关系是根据与所述室内的第 p层的非 边缘栅格相对应的所述室内的第 p层的边缘栅格的水平位置信息和所述室内 的第 p层的非边缘栅格的水平位置信息计算得到的;
所述第四确定单元具体用于:
根据所述第一室外栅格的小区信号强度信息、所述第二室外栅格的小区 信号强度信息和与所述室内的第 p层的非边缘栅格相对应的所述室内的第 p 层的边缘栅格的小区信号强度信息,确定所述室内的第 p层的非边缘栅格的 小区信号强度信息。
结合第二方面的第十二种可能的实现方式,在第二方面的第十三种可能 的实现方式中, 所述第一室外栅格的环境相关度包括所述第一室外栅格与基 站的天线的相对位置关系; 所述与所述室内的第 p层的非边缘栅格相对应的 所述室内的第 p层的边缘栅格的环境相关度包括所述与所述室内的第 p层的 非边缘栅格相对应的所述室内的第 p层的边缘栅格与所述基站的天线的相对 位置关系。
结合第二方面的第十三种可能的实现方式,在第二方面的第十四种可能 的实现方式中, 所述第一室外栅格和基站的天线的相对位置关系是根据所述 第一室外栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高 度信息计算得到的; 所述室内的第 p层的非边缘栅格相对应的所述室内的第 p层的边缘栅格和基站的天线的相对位置关系是根据所述室内的第 p层的非 边缘栅格相对应的所述室内的第 p层的边缘栅格的水平位置信息、 高度信息 和基站的天线的水平位置信息、 高度信息计算得到的。
结合第二方面的第十种至第十四种可能的实现方式中的任一种实现方 式, 在第二方面的第十五种可能的实现方式中, m等于 1。
结合第二方面, 在第二方面的第十六种可能的实现方式中, 该装置还包 括用于确定室内的栅格中的非边缘栅格的小区信号强度信息的第五确定模 块, 所述第五确定模块包括:
第五确定单元, 用于根据室内的第 k层的非边缘栅格的水平位置信息, 确定与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层 的边缘栅格, 所述距离是根据栅格的水平位置信息计算得到的, 其中, k为 大于或等于 1的整数;
第三获取单元,用于获取所述第五确定单元确定的所述与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的小区信 号强度信息;
第六确定单元, 用于根据基站的天线的工程参数信息, 通过仿真计算确 定所述与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k 层的边缘栅格的仿真小区信号强度信息和所述室内的第 k层的非边缘栅格的 仿真小区信号强度信息;
第七确定单元, 用于根据所述第六确定单元确定的所述与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的仿真小 区信号强度信息、所述室内的第 k层的非边缘栅格的仿真小区信号强度信息 和所述第三获取单元获取的所述与所述室内的第 k层的非边缘栅格的距离小 于第三阔值的室内的第 k层的边缘栅格的小区信号强度信息,确定所述室内 的第 k层的非边缘栅格的小区信号强度信息。
基于上述技术方案, 本发明实施例提供的室内定位的方法和装置, 通过 将处于室内的待定位的终端的当前小区信号强度信息与室内三维 3D定位匹 配信息中的小区信号强度信息相匹配,确定对应的室内的栅格及其水平位置 信息和高度信息, 从而确定终端在室内所处的水平位置和终端所处的高度, 可以实现高精度的室内 3D定位。 附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对本发明实施例或 现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面所描述 的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付 出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是根据本发明一个实施例的室内定位的方法的示意性流程图。
图 2是 居本发明一个实施例的室内定位的方法的示意图。
图 3是 居本发明一个实施例的定位的方法的效果示意图。
图 4是根据本发明一个实施例的确定室内的栅格的小区信号强度信息的 方法的示意性流程图。
图 5是根据本发明一个实施例的确定室内的栅格的小区信号强度信息的 方法的示意图。
图 6是根据本发明另一个实施例的确定室内的栅格的小区信号强度信息 的方法的示意图。
图 7是根据本发明另一个实施例的确定室内的栅格的小区信号强度信息 的方法的示意图。
图 8是根据本发明另一个实施例的确定室内的栅格的小区信号强度信息 的方法的示意图。
图 9是根据本发明另一个实施例的确定室内的栅格的小区信号强度信息 的方法的示意性流程图。
图 10是根据本发明另一个实施例的确定室内的栅格的小区信号强度信 息的方法的示意图。
图 11是根据本发明又一个实施例的确定室内的栅格的小区信号强度信 息的方法的示意图。
图 12是根据本发明一个实施例的确定室内匹配特征库的方法的示意图。 图 13是根据本发明另一个实施例的确定室内匹配特征库的方法的示意 图。
图 14是根据本发明另一个实施例的确定室内匹配特征库的方法的示意 图。 图 15是根据本发明一个实施例的室内定位的方法的示意图。 图 16是根据本发明一个实施例的室内定位的装置的示意性框图。
图 17是根据本发明一个实施例的第三确定模块的示意性框图。
图 18是根据本发明一个实施例的第四确定模块的示意性框图。
图 19是根据本发明另一个实施例的室内定位的装置的示意性框图。 图 20是根据本发明一个实施例的基站的示意性框图。 具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例是本发明的一部分实施例, 而不 是全部实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做出创 造性劳动的前提下所获得的所有其他实施例, 都应属于本发明保护的范围。
应理解,在本发明实施例中, 终端也可以称为系统、用户单元、用户站、 移动站、 移动台、 远方站、 远程终端、 移动设备、 用户终端、 终端、 无线通 信设备、 用户代理、 用户装置或用户设备(User Equipment, UE )。 终端可 以是蜂窝电话、 无绳电话、 SIP ( Session Initiation Protocol, 会话启动协议 ) 电话、 WLL ( Wireless Local Loop, 无线本地环路 )站、 PDA ( Personal Digital Assistant, 个人数字处理)、 具有无线通信功能的手持设备、 车载设备、 计算 设备或连接到无线调制解调器的其它处理设备。
还应理解, 在本发明实施例中, 基站可用于与移动设备通信, 基站可以 是 GSM ( Global System of Mobile communication, 全球移动通讯 )或 CDMA ( Code Division Multiple Access , 码分多址) 中的 BTS ( Base Transceiver 宽带码分多址)中的 NB( NodeB,基站),还可以是 LTE( Long Term Evolution, 长期演进) 中的 eNB或 eNodeB ( Evolutional Node B , 演进型基站), 或者 中继站或接入点, 或者未来 5G网络中的基站设备等。
本发明实施例首先介绍通过将终端的当前小区信号强度信息与室内 3D 定位信息匹配信息中的小区信号强度信息相匹配,从而实现对终端定位的具 体实施例。
图 1示出了根据本发明一个实施例的室内定位的方法 100, 该方法 100 可以由室内定位的装置执行。 如图 1所示, 该方法 100包括: S110, 获取处于室内的终端的当前小区信号强度信息;
S120, 才艮据室内三维 3D定位匹配信息, 确定与该当前小区信号强度信 息对应的室内的栅格的水平位置信息和高度信息, 其中, 室内 3D定位匹配 信息包括室内的栅格的小区信号强度信息与该室内的栅格的水平位置信息 和高度信息的对应关系;
S130,根据与该当前小区信号强度信息对应的室内的栅格的水平位置信 息和高度信息, 确定该终端在该室内所处的水平位置和该终端所处的高度, 其中, 该水平位置信息包括第一方向和第二方向的位置信息, 该第一方向和 该第二方向为水平面内相互垂直的两个方向。
在 S110中, 获取终端的当前小区信号强度信息, 可以通过终端上报的 测量才艮告 ( Measurement Report, MR )获取, 也可以通过其它渠道获取, 本 发明实施例对此不作限定。 具体而言, 可以提取待定位的终端的 MR中的当 前可接收到的小区和小区对应的信号强度等作为终端对应的当前小区信号 强度信息, 用于和室内定位的装置中存储的定位匹配信息中的小区信号强度 信息匹配。 当然, 除终端的当前小区信号强度信息以外, 还可以参考终端的 其它信息, 例如, 当待定位的终端具有气压测量功能时, 定位装置还可以参 考该气压信息, 以辅助确定待定位的终端所在的高度, 本发明实施例对此不 作限定。 在 S120中,将终端的当前小区信号强度信息与室内 3D定位匹配信息中 的小区信号强度信息相匹配,确定相应的室内的栅格及其水平位置信息和高 度信息, 可以近似认为终端位于该室内的栅格的中心。 具体地, 室内 3D定 位匹配信息可以包括小区信号强度信息与室内的栅格的水平位置信息和高 度信息的对应关系, 还可以包括其它的用于匹配的一些信息, 例如室内的栅 格处的气压信息等, 以和终端的 MR中的气压信息相匹配, 提高定位匹配的 精确度, 本发明实施例对此不作限定。 应注意的是, 室内 3D定位匹配信息中的小区信号强度信息的确定方法 将在下文的方法 200至方法 600中详细描述。 室内 3D定位匹配信息中的小 区信号强度信息和终端的当前小区信号强度信息, 可以是一个小区及其对应 的信号强度, 也可以是多个小区及与该多个小区分别对应的信号强度, 本发 明实施例对此不作限定。 在进行小区信号强度信息的匹配时, 室内 3D定位匹配信息中可能不能 找到与终端的当前小区信号强度信息完全匹配的栅格, 而是找到与终端的当 前小区信号强度信息相近的多个栅格。 在这种情况下, 如图 2所示, 可以对 终端可能处于的多个栅格进行编号 1、 2、 3、 4......, 计算终端的当前小区信 号强度信息中的小区与每个栅格对应的小区的相关性,将相关性最好的栅格 (例如, 栅格 2 )确定为用户的位置。 应理解, 室内 3D定位匹配信息可以 是定位匹配数据库的一部分,该数据库还可以包括一些 2D/3D室内和室外的 测试数据, 本发明实施例对此不作限定。 在 S130中, 根据与终端的当前小区信号强度信息对应的室内的栅格的 水平位置信息和高度信息,可以确定该终端所在的水平位置和该终端所在的 高度。 其中, 室内的栅格是根据 3D建模划分的, 为了划分简单并且将同一 水平面内的面积尽可能全部覆盖, 栅格的形状可以选择为正方形。 例如, 室 内的栅格可以为正方形, 其边长一般可取 5米、 10米, 但本发明实施例并不 仅限于此。 室内的栅格的水平位置是指在水平方向所处的位置, 水平位置信 息可以包括第一方向和第二方向的位置信息, 该第一方向和该第二方向为水 平面内相互垂直的两个方向, 例如, 通常可以取经度和纬度, 本发明实施例 并不排除用更多的方向来表征水平位置的可能。
因此, 本发明实施例提供的室内定位的方法, 通过将处于室内的待定位 的终端的当前小区信号强度信息与室内三维 3D定位匹配信息中的小区信号 强度信息相匹配, 确定对应的室内的栅格及其水平位置信息和高度信息, 从 而确定终端在室内所处的水平位置和终端所处的高度,可以实现高精度的室 内 3D定位。
可选地, 作为一个实施例, 在 S120前, 方法 100还可以包括: 根据终端的当前小区信号强度信息以及 2D 定位匹配信息和 3D GIS ( Three Dimensions Geographic Information System, 三维地理信息系统), 确 定终端位于室内, 其中, 2D 定位匹配信息包括水平位置信息和小区信号强 度信息的对应关系。
具体而言, 可以利用 2D定位技术先对终端进行 2D定位, 即根据终端 上报的 MR等包含的信息, 利用 2D定位匹配信息, 判断终端在水平面上的 大致位置, 结合该位置利用 3D GIS确定终端是否处于某一建筑物室内。 在 确定终端处于室内时, 根据该建筑物对应的室内 3D定位匹配信息和与终端 的当前小区信号强度信息, 对终端进行精确的定位。 通过本方法, 可以实现 对室外或室内的多个终端进行 2D/3D定位, 定位效果如图 3所示。 例如, 当 终端为室外的终端时,可以确定终端所在的经纬度; 当终端为室内的终端时, 可以确定终端所在的经纬度以及高度。
因此, 本发明实施例提供的定位的方法, 首先通过 2D定位技术确定终 端位于室内, 再将终端的当前小区信号强度信息与室内 3D定位匹配信息中 的小区信号强度信息相匹配, 确定终端所位于的室内的栅格, 从而确定终端 所在的水平位置和高度, 可以实现高精度的室内 3D定位。
上文中结合图 1 至图 3详细描述了根据本发明实施例的室内定位的方 法, 下面将结合图 4至图 15, 详细描述上述定位的方法中所需的室内 3D定 位匹配信息的确定方法, 以及室内 3D定位匹配信息中的小区信号强度信息 的确定方法。
要确定室内 3D定位匹配信息, 该室内 3D定位匹配信息包括小区信号 强度信息, 与室内的栅格的水平位置信息和高度信息的对应关系, 可以分别 确定室内的栅格及其水平位置信息和高度信息,再确定每个栅格对应的小区 信号强度信息。
其中,确定室内的栅格及其水平位置信息和高度信息可以通过对建筑物 进行栅格划分获得。 对建筑物可以依照以下几个步骤进行栅格划分:
第一, 提取建筑物信息, 基于 3D GIS提取建筑物的矢量轮廓信息、 高 度信息等, 其中, 3D GIS也称 3D电子地图, 在用户无线网络规划仿真中有 广泛的应用, 地图中含有建筑物、 河流等地物信息。
第二, 建筑物 3D建模, 利用从 3D GIS提取的建筑物信息对建筑物进 行 3D建模, 即利用上一步得到的轮廓信息、 高度信息等将建筑物在地图上 标示出来。
第三, 建筑物室内的楼层划分, 对建筑物 3D模型进行楼层的划分。 第四, 建筑物室内栅格划分, 对建筑物的每个楼层按 3D GIS分辨率或 分辨率的倍数进行栅格划分。
本发明实施例的核心是通过相应的室外的栅格的小区信号强度信息确 定室内的栅格的小区信号强度信息。因此,除了对建筑物室内进行栅格划分, 还可以对室外的第 1层及对应建筑物的各楼层的室外空间进行栅格划分。普 通楼盘的楼间距大致在 50-60米, 在该距离范围内基本不存在其他建筑物的 阻碍。 因此, 对室外进行栅格划分时, 可以选取与建筑物外围的墙距离为
50-60米的范围以内的室外区域, 即室外的第 1层的栅格与室内的第 1层的 栅格中相应的边缘栅格的最远距离为 50-60米。 其中, 对室内进行栅格划分 后, 可以将栅格分为边缘栅格和非边缘栅格两种。 边缘栅格是指和墙体直接 连接的室内的栅格; 非边缘栅格是指不和墙体直接连接的室内的栅格。
由于在相同的距离范围内, 室内信号相对室外信号变化大, 所以室内的 栅格一般可以选取得相对小些。 为了划分简单并且将同一水平面内的面积尽 可能全部覆盖, 栅格的形状可以选择为正方形。 例如, 室内的栅格可以为正 方形, 其边长一般可取 5米、 10米等, 室外的栅格也可以为正方形, 其边长 一般可取 20米、 30米、 50米等。 通过以上步骤, 在对室内和室外的区域进 行栅格的划分时,栅格相对应的水平位置信息和高度信息也就确定了。这里, 栅格的水平位置可以认为是栅格的中心点的水平位置, 例如, 栅格中心点的 经度和纬度。
应理解,上文中的栅格划分是以建筑物室内各楼层和室外对应的各层为 整体进行描述的, 但这种描述不对本发明的实施例构成限定, 即也可以根据 实际需要仅对相应的楼层或相应的区域进行栅格划分。
图 4示出了根据本发明一个实施例的确定室内的栅格的小区信号强度信 息的方法 200, 该方法 200可以由确定室内的栅格的小区信号强度信息的装 置执行,也可以由室内定位的装置的相应模块执行。如图 4所示,该方法 200 包括:
S210, 根据室内的第 n层的栅格的水平位置信息, 确定与该室内的第 n 层的栅格相对应的室外的第 n层的栅格, 其中, n为大于或等于 1的整数。
在室内的第 n层的栅格中选取一个待确定的栅格。根据该室内的第 n层 的栅格的水平位置信息, 或者其水平位置信息、 高度信息结合周围基站的天 线的工程参数, 可以确定与该室内的第 n层的栅格对应的一个或多个室外的 第 n层的栅格。确定室外的第 n层的栅格时所需参考的信息根据栅格类型的 不同而不同。 例如, 当室内的第 n层的栅格为室内的第 n层的边缘栅格时, 可以参考室内的第 n层的边缘栅格的水平位置确定相对应的室外的第 n层的 栅格; 当室内的第 n层的栅格为室内的第 n层的非边缘栅格时, 则除参考室 内的第 n层的非边缘栅格的水平位置以外,还需参考其高度信息及周围基站 的天线的工程参数等。 此外, 还可以参考其它信息来确定相对应的室外的第 n层的栅格。 例如, 根据天线的工程参数或其它信息可以对室内的第 n层的 栅格和相对应的室外的第 n层的栅格进行仿真计算, 参考计算得到的相对应 的室外的第 n层的栅格的小区信号强度信息中的小区,确定室内的第 n层的 栅格的小区信号强度信息中的小区, 具体方法在下文中的实施例中阐述。
S220,获取与该室内的第 n层的栅格相对应的室外的第 n层的栅格的小 区信号强度信息。相对应的室外的第 n层的栅格的小区信号强度信息的获取 途径可以有多种。 例如, 可以来自测试数据, 如路测 (Drive Test, DT )数 据和 /或终端数据,也可以是通过计算获得的小区信号强度信息,本发明实施 例对此不作限定。
S230,根据与该室内的第 n层的栅格相对应的室外的第 n层的栅格的小 区信号强度信息, 确定该室内的第 n层的栅格的小区信号强度信息。 由于与 建筑物的水平距离小于一定范围 (如 50-60米) 的室外的第 n层的栅格的信 号强度的衰减规律,与室内的第 n层的栅格的信号强度的衰减规律较为接近, 常常体现出相似的信号特征, 符合数学中的统计特性, 因而可以利用室外的 第 n层的栅格的小区信号强度信息,确定建筑物的第 n层的栅格的小区信号 强度信息。
因此, 本发明实施例提供的确定室内的栅格的小区信号强度信息的方 法, 根据室内的第 n层的栅格的水平位置信息, 确定与该室内的第 n层的栅 格相对应的室外的第 n层的栅格,通过获取的相对应的室外的第 n层的栅格 的小区信号强度信息可以确定该室内的第 n层的栅格的小区信号强度信息, 从而能够得到准确度高的室内的小区信号强度信息, 以便于进一步实现高精 度的室内 3D定位。
可选地, 作为一个实施例, 当待确定的室内的第 n层的栅格为室内的第 n层的边缘栅格时,
根据室内的第 n层的栅格的水平位置信息,确定与该室内的第 n层的栅 格相对应的室外的第 n层的栅格, 可以包括:
根据该室内的第 n层的边缘栅格的水平位置信息, 确定与该室内的第 n 层的边缘栅格的距离小于第一阔值的室外的第 n层的栅格, 该距离是根据栅 格的水平位置信息计算得到的;
根据与该室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号 强度信息, 确定该室内的第 n层的栅格的小区信号强度信息, 包括: 根据与该室内的第 n层的边缘栅格的距离小于第一阔值的室外的第 n层 的栅格的小区信号强度信息及墙内外信号强度的损耗关系,确定该室内的第 n层的边缘栅格的小区信号强度信息。
具体而言, 对于任一室内的第 n层的边缘栅格, 根据其水平位置信息可 以计算得到距离该边缘栅格第一阔值范围内的至少一个室外的第 n层的栅 格。 该第一阔值的范围可以选取与室外的栅格的尺寸相对应的值, 例如, 20 米或 30米。 优选地, 可以选取距离该室内的第 n层的边缘栅格最近的室外 的第 n层的栅格。
该室内的第 n层的边缘栅格的小区信号强度信息, 可以根据与该室内的 第 n层的边缘栅格的相对应的室外的第 n层的栅格的小区信号强度信息, 考 虑墙内外信号强度的损耗关系来确定。该墙内外信号强度的损耗关系可以是 一个经验公式,例如与墙的厚度、 高度、信号的频段等因素相关的经验公式; 还可以是一个经验值, 例如墙体穿透损耗(Wall Penetrate Loss, Wall-PLoss ) 值, 该 Wall-PLoss值的选取也可以与频段等因素有关, 其取值范围可以为 3-10dB。 较优地, Wall-PLoss值可取 5dB。
作为一个具体的例子, 可以将室外的第 n层的栅格的小区信号强度信息 中的小区确定为室内的第 n层的边缘栅格的小区信号强度信息中的小区; 将 某小区的室外的第 n层的栅格的信号强度减去 Wall-PLoss值,作为室内的第 n层的边缘栅格的该小区的信号强度。
优选地, 可以根据天线的工程参数信息, 通过仿真计算如射线跟踪法确 定室内的第 n层的边缘栅格的仿真小区信号强度信息。 其中, 仿真小区信号 强度信息包括栅格可以接收到的一个或多个小区及各小区对应的信号强度 等信息。 可以在该仿真小区信号强度信息的基础上, 利用相应的室外的第 n 层的栅格的小区信号强度信息,确定该室内的第 n层的边缘栅格的小区信号 强度信息。 其中, 天线的工程参数信息包括无线网络规划中天线相关的工程 参数, 例如天线的方位角、 天线的下倾角、 天线挂高、 天线的经纬度信息、 发射功率等信息。
对比室内的第 n层的边缘栅格的仿真小区信号强度信息中的小区及相应 的室外的第 n层的栅格的小区信号强度信息中的小区,将其中相同的小区作 为室内的第 n层的边缘栅格的小区; 对于只在室内的第 n层的边缘栅格的仿 真小区信号强度信息中存在的小区或者只在相应的室外的第 n层的栅格的小 区信号强度信息中存在的小区, 需要结合天线的工程参数信息确定该小区的 信号在该室内的第 n层的边缘栅格处是否应该存在, 如果应该存在, 则将这 个小区也作为该室内的第 n层的边缘栅格的小区。 另外, 还可以结合与该小 区的基站相近的其它小区的基站的传播情况, 来辅助确定小区在该第一边缘 栅格处是否应该存在, 确定小区的方法可以有多种, 本发明实施例对此不作 限定。
在室内的第 n层的边缘栅格的仿真小区信号强度信息和相应的室外的第 n层的栅格的小区信号强度信息中均存在的小区, 室内的第 n层的边缘栅格 的信号强度仍可以通过将相应的室外的第 n 层的栅格的信号强度减去 Wall-PLoss值来确定。对于室内的第 n层的边缘栅格的仿真小区信号强度信 息中存在,相应的室外的第 n层的栅格的小区信号强度信息中不存在的小区, 其信号强度可以选用室内的第 n层的边缘栅格的仿真小区信号强度信息中该 小区对应的信号强度。
可选地, 作为另一个实施例, 当该待确定的室内的第 n层的栅格为室内 的第 n层的非边缘栅格时,
根据室内的第 n层的栅格的水平位置信息,确定与该室内的第 n层的栅 格相对应的室外的第 n层的栅格, 可以包括:
确定在水平位置信息中的任一方向上与该室内的第 n层的非边缘栅格相 对应的室内的第 n层的边缘栅格;
确定第一室外栅格和第二室外栅格,该第一室外栅格和该第二室外栅格 均为室外的第 n层的栅格, 其中, 该第一室外栅格和该第二室外栅格的相对 位置关系, 和与该室内的第 n层的非边缘栅格相对应的该室内的第 n层的边 缘栅格和该室内的第 n层的非边缘栅格的相对位置关系一致, 并且该第一室 外栅格的环境相关度和与该室内的第 n层的非边缘栅格相对应的该室内的第 n层的边缘栅格的环境相关度一致; 其中, 该第一室外栅格和该第二室外栅 格的相对位置关系是根据该第一室外栅格的水平位置信息和该第二室外栅 格的水平位置信息计算得到的; 该与该室内的第 n层的非边缘栅格相对应的 该室内的第 n层的边缘栅格和该室内的第 n层的非边缘栅格的相对位置关系 是根据与该室内的第 n层的非边缘栅格相对应的该室内的第 n层的边缘栅格 的水平位置信息和该室内的第 n层的非边缘栅格的水平位置信息计算得到 的; 根据与该室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号 强度信息, 确定该室内的第 n层的栅格的小区信号强度信息, 可以包括: 根据该第一室外栅格的小区信号强度信息、该第二室外栅格的小区信号 强度信息, 以及与该室内的第 n层的非边缘栅格相对应的该室内的第 n层的 边缘栅格的小区信号强度信息,确定该室内的第 n层的非边缘栅格的小区信 号强度信息。
具体而言, 对于任一室内的第 n层的非边缘栅格, 与其在第一方向或第 二方向或水平位置的其它方向上位置相同或相近的室内的第 n层的边缘栅格 可以有多个。 参照图 5, 以室内的第 1层的边缘栅格为例, 图中示出了 4个。 选定一个与该室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格 进行说明。从与该室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘 栅格的中心到该室内的第 n层的非边缘栅格的中心可以确定一个矢量, 该矢 量的大小为与该室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅 格的中心到该室内的第 n层的非边缘栅格的中心的距离, 方向为从与该室内 的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格中心指向该室内的 第 n层的非边缘栅格的中心。
在室外的第 n层的栅格中选取环境相关度和与该室内的第 n层的非边缘 栅格相对应的室内的第 n层的边缘栅格的环境相关度相一致的第一室外栅 格。 可选地, 环境相关度可以根据 3D GIS和 /或附近基站的天线的工程参数 等信息确定。 第一室外栅格的环境相关度包括第一室外栅格与基站的天线的 相对位置关系; 与室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘 栅格的环境相关度包括与室内的第 n层的非边缘栅格相对应的室内的第 n层 的边缘栅格与基站的天线的相对位置关系。
其中, 第一室外栅格和基站的天线的相对位置关系是根据第一室外栅格 的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度信息计算得 到的; 室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格和基站 的天线的相对位置关系是根据室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度信息计算得到的。 即环境相关度一致是指两个栅格距离其所能接收到信 号的多个基站的天线的距离、 方向等尽可能的一致。 还可以包括两个栅格拥 有更多的相同小区或小区的强度相近,也可以是考虑小区或基站的天线的距 离或小区信号强度的加权的评价方法, 本发明实施例对此不作限定。 这里提 到的小区或小区的强度可以是通过仿真计算得到的。
进而, 以第一室外栅格为起点, 作与上述矢量相同的矢量, 确定矢量的 终点, 获取该矢量的终点所位于的或距离该矢量的终点最近的第二室外栅 格。 较优地, 该矢量的终点与第二室外栅格的距离应小于室内的第 n层的栅 格的边长, 如果找不到符合该条件的第二室外栅格, 可以重新选取第一室外 栅格及对应的第二室外栅格,通过这种方式可以保证第一室外栅格和第二室 外栅格的位置关系, 和与该室内的第 n层的非边缘栅格相对应的室内的第 n 层的边缘栅格和该室内的第 n层的非边缘栅格的位置关系一致。 当然, 还可 以有其它方法来确定室外的第 n层的栅格, 以保证与室内的第 n层的非边缘 栅格相对应的室内的第 n层的边缘栅格的位置关系一致, 本发明实施例对此 不作限定。
可以近似认为, 对于一个固定的小区而言, 第一室外栅格所接收到的该 小区的信号强度和第二室外栅格所接收到的该小区的信号强度之间的衰减 规律, 和与该室内的第 n层的非边缘栅格相对应的该室内的第 n层的边缘栅 格的所接收到的该小区的信号强度和该室内的第 n层的非边缘栅格所接收到 的该小区的信号强度之间的衰减规律相同。 因而, 设定第一室外栅格和第二 室外栅格的小区信号强度信息中相同的小区对应的信号强度的差值为第一 差值。设定与该室内的第 n层的非边缘栅格相对应的该室内的第 n层的边缘 栅格和该室内的第 n层的非边缘栅格的小区信号强度信息中相同的小区对应 的信号强度的差值为第二差值。 根据第一差值和第二差值相等, 可以确定室 内的第 n层的非边缘栅格的小区信号强度信息中的小区对应的信号强度。 当 然, 也可以设定第一差值和第二差值不相等, 而是相差某一经验值, 从而确 定室内的第 n层的非边缘栅格的小区信号强度信息中的相应的小区对应的信 号强度。
同样地,可以釆用仿真计算确定室内的第 n层的非边缘栅格的仿真小区 信号强度信息, 在该仿真小区信号强度信息的基础上, 确定室内的第 n层的 非边缘栅格的小区信号强度信息。 这里, 主要参考仿真小区信号强度信息中 栅格可接收到的小区。
应理解, 可以才艮据一个与室内的第 n层的非边缘栅格相对应的该室内的 第 n层的边缘栅格及对应的一对第一室外栅格和第二室外栅格的相应小区信 号强度信息来确定室内的第 n层的非边缘栅格的小区信号强度信息。优选地, 还可以根据与室内的第 n层的非边缘栅格在第一方向或第二方向的位置相同 或相近的多个室内的第 n层的边缘栅格及它们对应的室外栅格的相应小区信 号强度信息分别确定多组室内的第 n层的非边缘栅格的小区信号强度信息, 再对该多组小区信号强度信息中的小区的信号强度求平均值, 以提高小区信 号强度信息的小区信号强度信息的准确率。
由此, 可以获得建筑物室内的第 n层的边缘栅格和非边缘栅格的小区信 号强度信息, 即获得了室内的任一栅格的定位匹配信息, 这些定位匹配信息 集合在一起, 可以称之为匹配特征库。 方法 200是根据与室内的第 n层的栅 格相对应的室外的第 n层的栅格的小区信号强度信息,确定该室内的第 n层 的栅格的小区信号强度信息。 其中, 室外的第 n层的栅格的小区信号强度信 息的确定在 n等于 1和 n大于 1时又有多种方法。 下文中将分别详细介绍。
可选地, 当 n等于 1时, 获取与室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息, 可以包括:
获取与室内的第 1层的栅格相对应的室外的第 1层的栅格的测试数据, 该测试数据包括与室内的第 1层的栅格相对应的室外的第 1层的栅格的水平 位置信息和小区信号强度信息;
根据小区信号强度的衰减随距离的变化规律,删除测试数据中的误差数 据, 其中, 小区信号强度的衰减随距离的变化规律是根据多个室外的第 1层 的栅格的小区信号强度信息和多个室外的第 1层的栅格的水平位置信息得到 的;
确定删除误差数据后的测试数据中的小区信号强度信息为与室内的第 1 层的栅格相对应的室外的第 1层的栅格的小区信号强度信息。
具体而言,获取室外的第 1层的栅格的小区信号强度信息可以通过获取 并处理室外的第 1层的栅格的测试数据而得到。 测试数据可以包括 DT数据 和 /或终端数据,其内容包括室外的第 1层的栅格在水平位置信息和小区信号 强度信息。 具体地, DT数据是指利用带终端的车载设备对无线空口相关信 号和信息进行釆集, 该信息至少包括测试点的经纬度位置信息及对应该位置 的终端接收的多个小区及这些小区对应的信号强度等信息。终端数据可以是 终端釆集的或由终端中的应用软件釆集的辅助全球卫星定位系统(Assisted Global Positioning System, AGPS )釆集的经纬度位置信息, 以及通过 MR 获取的接收信号的小区标识和信号强度等信息。 除此之外, 测试数据中还可 以包括其他信息, 例如, 通过终端的气压计等功能测得的高度信息等, 本发 明实施例对此不作限定。
由测试数据确定室外的第 1层的栅格的小区信号强度信息时,可以仅使 用收集的 DT数据, 也可以仅使用终端数据, 还可以将 DT数据和终端数据 进行合并和相互补充。 此外, 还可以对这些测试数据进行 选和平滑、 离散 性剔除等处理, 本发明实施例对此不作限定。 此外, 一个室外的第 1层的栅 格内可能包含一个或多个测试数据。 当栅格内包含多个测试数据时, 可以将 该多个测试数据对应的多个小区的强度信息的平均值或平滑处理后的数值 近似作为栅格对应的信号强度。
作为一个具体的例子, 如图 6所示, 可以以建筑物室内的第 1层的边缘 栅格为基准, 在室外的第 1层的 50-60米范围选取多个室外测试点。 计算室 外测试点的小区信号强度之间的差值, 在无阻碍物的正常情况下, 小区信号 强度的衰减随距离具有一定的变化规律。 而当其间遇到建筑物或其它物体的 阻隔时, 信号强度则可能出现不遵循变化规律的奇异点。 此外, 还可能会找 到一些信号强度误差较大的点。 利用这一点, 可以将奇异点和误差较大的室 外测试点删除,将删除误差数据后的测试数据中的小区信号强度信息作为室 外的第 1层的栅格的的小区信号强度信息, 以使得室内 3D定位匹配信息更 准确。 其中, 图 6中奇异点、 误差较大点和正常点的个数只是示意性的, 对 本发明实施例不构成限定。
例如,根据多个室外的第 1层的栅格的小区信号强度的衰减随距离的变 化规律, 与相比较的基准栅格的信号强度比较, 某个室外的第 1层的栅格的 信号强度应衰减 5dB, 但是该室外的第 1层的栅格的信号强度却异常地衰减 了 20dB, 则可以认为该室外的第 1层的栅格可能存在遮挡, 为奇异点, 予 以删除; 或者另一个室外的第 1层的栅格的信号强度应衰减 5dB, 但是该室 外的第 1层的栅格的信号强度却异常地增加了 5dB, 则可以认为该室外的第 1层的栅格的测试数据误差较大, 予以删除。
进一步地, 在根据小区信号强度的衰减随距离的变化规律, 删除测试数 据中的误差数据之后, 方法 200还可以包括:
根据与该与室内的第 1层的栅格相对应的室外的第 1层的栅格的距离小 于第二阔值的多个室外的第 1层的栅格的小区信号强度信息,对删除误差数 据后的测试数据中的小区信号强度信息进行平滑处理;
确定删除误差数据后的测试数据中的小区信号强度信息为与室内的第 1 层的栅格相对应的室外的第 1层的栅格的小区信号强度信息, 包括:
确定删除误差数据后的测试数据中经过平滑处理后的小区信号强度信 息为与室内的第 1层的栅格相对应的室外的第 1层的栅格的小区信号强度信 息。
具体而言, 考虑单个室外测试点的测量值会有较大随机误差, 可以将测 试数据中的小区信号强度进行平滑处理。 具体实现方式可以如下: 选定一个 室外的测试点对应的测试数据,确定与该测试点距离为第二阔值的多个室外 的第 1层的栅格,根据该测试点距离为第二阔值的多个室外的第 1层的栅格 的小区信号强度信息,对该测试点对应的测试数据中的小区信号强度信息进 行平滑处理。 例如, 对这些测试数据中, 相同的小区对应的信号强度进行求 平均值, 作为该选定的测试点的对应小区的信号强度。 将删除误差数据后的 测试数据中经过平滑处理后的小区信号强度信息作为与室内的第 1层的栅格 相对应的室外的第 1层的栅格的小区信号强度信息。
优选地, 第二阔值可以取 10米, 根据实际数据检验, 10米范围内的测 试点对应的 DT数据具有较高的相关性。 第二阔值还可取其它的不同的值, 如 20米或 30米, 本发明实施例对此不作限定。
可选地, 当 n大于 1时, 获取与室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息, 可以包括:
根据基站的天线的工程参数信息,通过仿真计算确定与室内的第 n层的 栅格相对应的室外的第 n层的栅格的仿真小区信号强度信息和室外的第 1层 的栅格的仿真小区信号强度信息, 其中, 室外的第 1层的栅格的水平位置信 息和与室内的第 n层的栅格相对应的室外的第 n层的栅格的水平位置信息一 致;
根据与室内的第 n层的栅格相对应的室外的第 n层的栅格的仿真小区信 号强度信息、 室外的第 1层的栅格的仿真小区信号强度信息和室外的第 1层 的栅格的小区信号强度信息,确定与室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息。
具体而言, 如图 7所示, 可以根据基站的天线的工程参数信息, 利用射 线追踪等仿真计算方法,确定室外的第 1层的栅格的仿真小区信号强度信息, 以及室外的第 n层的栅格的仿真小区信号强度信息, 室外的第 n层的栅格与 室外的第 1层的栅格水平位置信息相同或相近, 即室外的第 n层的栅格与室 外的第 1层的栅格在第一方向和第二方向上的位置尽可能接近, 并且室外的 第 n层的栅格的高度对应建筑物的第 n层。
设定室外的第 1层的栅格的仿真小区信号强度信息中某一小区的信号强 度和与室内的第 n层的栅格相对应的室外的第 n层的栅格的仿真小区信号强 度信息中该小区的信号强度的差值为第三差值。设定室外的第 1层的栅格的 小区信号强度信息中某一小区的信号强度和与室内的第 n层的栅格相对应的 室外的第 n层的栅格的小区信号强度信息中该小区的信号强度的差值为第四 差值。 根据第三差值和第四差值相等, 可以确定与室内的第 n层的栅格相对 应的室外的第 n层的栅格的小区信号强度信息中该小区的信号强度。 当然, 也可以设定第三差值和第四差值不相等, 而是相差某一经验值, 从而确定与 室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息中该 小区的信号强度。
同样地, 可以参考与室内的第 n层的栅格相对应的室外的第 n层的栅格 的仿真小区信号强度信息中的小区的信息,对与室内的第 n层的栅格相对应 的室外的第 n层的栅格的小区信号强度信息中的小区进行补充。
可选地, 室外的第 1层的栅格的小区信号强度信息和室外的第 n层的栅 格的小区信号强度信息中, 第 n层的栅格与第 1层的栅格对应的小区差别可 能较大, 为了进一步提高建筑物的第 n层的栅格的小区信号强度信息的准确 性, 可以逐层确定室外的各楼层的栅格的小区信号强度信息。 例如, 如图 8 所示, 要确定室外的第 3层的栅格的小区信号强度信息, 可以根据室外的第 2层和第 3层的栅格的仿真小区信号强度信息以及室外的第 2层的栅格的小 区信号强度信息确定。
相应地, 当 n大于 1时, 获取与室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息, 可以包括:
根据基站的天线的工程参数信息, 通过仿真计算确定室外的第 n-1层的 栅格的仿真小区信号强度信息和室外的第 n层的栅格的仿真小区信号强度信 息, 其中, 室外的第 n-1层的栅格和室外的第 n层的栅格均与该与室内的第 n-1层的栅格相对应的室外的第 n-1层的栅格在第一方向和第二方向的位置 信息一致, 室外的第 n-1层的栅格的高度与室内的第 n-1层的栅格的高度相 等, 室外的第 n层的栅格的高度与室内的第 n层的栅格的高度相等; 确定室外的第 n-1层的栅格的小区信号强度信息;
根据室外的第 n-1层的栅格的仿真小区信号强度信息、 室外的第 n层的 栅格的仿真小区信号强度信息以及室外的第 n-1层的栅格的小区信号强度信 息, 确定室外的第 n层的栅格的小区信号强度信息。
具体而言, 室外的第 n-1层的栅格的小区信号强度信息可能是已知的, 例如, 已经通过测量手段获得, 或者已经在计算其它楼层的栅格的小区信号 强度信息的过程中获得。 室外的第 n-1层的栅格的小区信号强度信息也可能 是未知的, 此时可以重复执行以下步骤, 直至获得室外的第 n-1层的栅格的 小区信号强度信息, i的初始值设置为 1。
根据基站的天线的工程参数信息, 通过仿真计算确定室外的第 i层的栅 格的仿真小区信号强度信息和室外的第 i+1层的栅格的仿真小区信号强度信 息, 其中, 室外的第 i层的栅格的水平位置信息和室外的第 i+1层的栅格的 水平位置信息, 均和与室内的第 n层的栅格相对应的室外的第 n层的栅格的 水平位置信息一致, 室外的第 i层的栅格的高度与室内的第 i层的栅格的高 度相等,室外的第 i+1层的栅格的高度与室内的第 i+1层的栅格的高度相等; 确定室外的第 i层的栅格的小区信号强度信息;
根据室外的第 i层的栅格的仿真小区信号强度信息、 室外的第 i+1层的 栅格的仿真小区信号强度信息和室外的第 i层的栅格的小区信号强度信息, 确定室外的第 i+1层的栅格的小区信号强度信息;
设置 i为 i+l。
作为一个具体的例子,要确定室外的第 3层的栅格的小区信号强度信息, 可以先根据室外的第 1层和第 2层的栅格的仿真小区信号强度信息以及室外 的第 1层的栅格的小区信号强度信息,确定室外的第 2层的栅格的小区信号 强度信息; 再根据室外的第 2层和第 3层的栅格的仿真小区信号强度信息以 及室外的第 2层的栅格的小区信号强度信息,确定室外的第 3层的栅格的小 区信号强度信息。
优选地, 通过仿真计算确定的室外的任一层(如第 X层)的栅格的仿真 小区信号强度信息, 均可以对其进行平滑处理。 例如, 对于室外的第 X层的 一个栅格对应的仿真点进行平滑处理, 可以在第 X层水平面内, 取与其距离 最近的 y (例如 p为 5 )个仿真点, 该 y个仿真点中距离进行平滑处理的仿 真点的最大距离为 d。 d的范围可以根据室外栅格划分的大小来确定, 一般 可以为 15-35米, 较优地, d可以为 25米。 将该 y个仿真点对应的相同小区 的信号强度取平均值作为进行平滑处理的仿真点对应的小区信号强度信息 中的小区的信号强度。
应理解, 在本发明各实施例中, 确定室外及室内的各楼层的小区信号强 度信息均可以参考利用仿真计算得到的仿真小区信号强度信息。 即参考仿真 小区信号强度信息中的小区的信息, 以使得小区信号强度信息更准确和完 善, 具体参考方法前文中已有相应描述, 为了简洁, 在此不再赘述。
因此, 本发明实施例提供的确定室内的栅格的小区信号强度信息的方 法, 根据室内的第 n层的栅格的水平位置信息, 确定与该室内的第 n层的栅 格相对应的室外的第 n层的栅格,通过获取的相对应的室外的第 n层的栅格 的小区信号强度信息可以确定该室内的第 n层的栅格的小区信号强度信息, 从而能够得到准确度高的室内的小区信号强度信息, 以便于进一步实现高精 度的室内 3D定位。
确定室内的栅格的小区信号强度信息的方法 200基于室外的空间的小区 信号强度信息, 全面地考虑室外条件, 重现室外场景, 使得室外不同楼层信 号的相对变化比较符合实际情况,提高建筑物室内的各楼层的栅格的小区信 号强度信息的准确性, 进而可以获得高精度的室内 3D定位匹配信息。 这种 方法较适合较高的楼层,楼层较高时终端可以接收到的小区及小区的信号强 度, 与低楼层可能会有较大的区别。 除第 1层以外的较低的楼层例如第 2层 至第 5层, 其小区信号强度信息的变化, 呈现一定的规律。 可以使用更为简 便的方法来确定这些楼层的栅格的小区信号强度信息, 具体在方法 300中展 开描述。
图 9是根据本发明另一个实施例的确定室内的栅格的小区信号强度信息 的方法 300的示意性流程图。该方法 300可以由确定室内的栅格的小区信号 强度信息的装置执行, 也可以由室内定位的装置的相应模块执行。 如图 9所 示, 该方法 300包括:
S310, 根据室内的第 p层的栅格的水平位置信息, 确定与该室内的第 p 层的栅格相对应的室内的第 m层的栅格或室外的第 m层的栅格;
S320, 获取与该室内的第 p层的栅格相对应的室内的第 m层的栅格或 室外的第 m层的栅格的小区信号强度信息; S330, 根据与该室内的第 p层的栅格相对应的室内的第 m层的栅格或 室外的第 m层的栅格的小区信号强度信息,确定该室内的第 p层的栅格的小 区信号强度信息, 其中, p为大于 1的整数, m为小于 p的正整数, 该第 1 层的高度为地面高度, 该第 p层的高度高于地面高度。
一般而言, 建筑物的除第 1层以外的较低的第 p层, 如室内的第 2层至 第 5层, 由于建筑物的遮挡其室内的栅格的小区信号强度信息与建筑物室内 的第 m层,特别是第 1层具有相似的特征,尤其是在边缘栅格该规律更为明 显。 因而,可以通过建筑物室内的第 m层的栅格的小区信号强度信息确定室 内的第 p层的栅格的小区信号强度信息。
因此, 本发明实施例提供的确定室内的栅格的小区信号强度信息的方 法, 根据室内的第 p层的栅格的水平位置信息, 确定与该室内的第 p层的栅 格相对应的室外的第 m层的栅格或室内的第 m层的栅格, 通过获取的相对 应的室外的第 m层的栅格或室内的第 m层的栅格的小区信号强度信息可以 确定该室内的第 p层的栅格的小区信号强度信息,从而能够得到准确度高的 室内的小区信号强度信息, 以便于进一步实现高精度的室内 3D定位。
应理解, 室内的第 1层的栅格或室外的第 1层的栅格, 以及除第 1层以 外的室内的第 m层的栅格或室外的第 m层的栅格的小区信号强度信息, 可 以是相应的室内或室外的测试数据中的小区信号强度信息,也可以是计算得 到的仿真数据中的小区信号强度信息,还可以是通过本发明其它实施例的方 法确定的小区信号强度信息, 本发明实施例对此不作限定。 以下以由室内的 第 1层的栅格或室外的第 1层的栅格的小区信号强度信息, 确定室内的第 p 层的栅格的小区信号强度信息为例, 进行方法 300的详细阐述, 由室内的第 m层的栅格或室外的第 m层的栅格的小区信号强度信息, 确定室内的第 p 层的栅格的小区信号强度信息的过程与其类似, 在此不再赘述。
可选地, 作为一个实施例, 当室内的第 p层的栅格为室内的第 p层的边 缘栅格时,
根据室内的第 p层的栅格的水平位置信息,确定与室内的第 p层的栅格 相对应的室内的第 m层的栅格或室外的第 m层的栅格, 可以包括:
确定与室内的第 p层的边缘栅格相对应的室内的第 m层的边缘栅格,其 中,与室内的第 p层的边缘栅格相对应的室内的第 m层的边缘栅格的水平位 置信息与室内的第 p层的栅格的水平位置信息一致; 根据与室内的第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m 层的栅格的小区信号强度信息,确定室内的第 m层的栅格的小区信号强度信 息, 可以包括:
根据与室内的第 p层的边缘栅格相对应的室内的第 m层的边缘栅格的小 区信号强度信息及楼层间信号强度的损耗关系,确定室内的第 p层的边缘栅 格的小区信号强度信息, 其中, m等于 1。
具体而言, 如果终端的水平位置固定, 即终端在第一方向和第二方向的 位置固定, 并且基站的天线挂高较高, 则终端所处的高度位置越高其接收到 的信号强度也越强。 因而, 对于基站的天线挂高远高于楼层的高度的情况, 建筑物室内的第 p层的边缘栅格所接收到的小区的信号强度,可以近似看作 与室内的第 p层的边缘栅格相对应的室内的第 1层的边缘栅格所接收到的该 小区的信号强度的加强, 加强值与楼层间信号强度的损耗关系相关。 其中, 与室内的第 p层的边缘栅格相对应的室内的第 1层的边缘栅格的水平位置信 息与室内的第 p层的栅格的水平位置信息一致。这里的水平位置信息一致是 指室内的第 p层的边缘栅格在第一方向和第二方向的位置和与室内的第 p层 的边缘栅格相对应的室内的第 1层的边缘栅格在第一方向和第二方向的位置 目同 目^。
例如,如图 10所示,终端所处的位置每升高 1层,信号强度可增加 q dB, 即考虑楼层穿透损耗 ( Floor Penetrate Loss, Floor-PLoss ), 室内的第 p层的 边缘栅格较室内的第 1层的边缘栅格的信号强度大 (p-l)q dB。 m值的选取与 频段等因素相关, 其范围可以为 3-10, 较优地, q值可取 3。 因此, 根据室 内的第 1层的栅格的小区信号强度信息,可以得到室内的第 p层的栅格的小 区信号强度信息。
优选地, 可以对室内的第 p层的栅格进行仿真计算, 得到室内的第 p层 的栅格的仿真小区信号强度信息。对比与室内的第 p层的边缘栅格相对应的 室内的第 1层的边缘栅格的小区信号强度信息中的小区及室内的第 p层的栅 格的仿真小区信号强度信息中的小区,将其中相同的小区作为室内的第 p层 的边缘栅格的小区; 对于只在室内的第 1层的栅格的小区信号强度信息中存 在的小区, 或者只在室内的第 p层的边缘栅格的仿真小区信号强度信息中存 在的小区, 需要结合天线的工程参数信息确定该小区的信号在该室内的第 p 层的边缘栅格处是否应该存在, 如果应该存在, 则将这个小区也作为该室内 的第 p层的边缘栅格的小区。
对于室内的第 p层的边缘栅格的仿真小区信号强度信息和与室内的第 p 层的边缘栅格相对应的室内的第 1层的边缘栅格的小区信号强度信息中均存 在的小区, 可以通过上述考虑楼层穿透损耗的方法计算室内的第 p层的边缘 栅格的小区信号强度信息。对于室内的第 p层的边缘栅格的仿真小区信号强 度信息中存在,但与室内的第 p层的边缘栅格相对应的室内的第 1层的边缘 栅格的小区信号强度信息中不存在的小区, 其信号强度可以选用室内的第 p 层的边缘栅格的仿真小区信号强度信息中该小区对应的信号强度。
可选地, 作为另一个实施例, 当室内的第 p层的栅格为室内的第 p层的 非边缘栅格时,
根据室内的第 p层的栅格的水平位置信息,确定与室内的第 p层的栅格 相对应的室内的第 m层的栅格或室外的第 m层的栅格, 可以包括:
确定在水平位置信息中的任一方向上与室内的第 p层的非边缘栅格相对 应的室内的第 p层的边缘栅格;
确定第一室外栅格和第二室外栅格,第一室外栅格和第二室外栅格均为 室外的第 m层的栅格,其中,第一室外栅格和第二室外栅格的相对位置关系, 和与室内的第 p层的非边缘栅格相对应的室内的第 p层的边缘栅格和室内的 第 p层的非边缘栅格的相对位置关系一致, 并且第一室外栅格的环境相关度 和与室内的第 p层的非边缘栅格相对应的室内的第 p层的边缘栅格的环境相 关度一致; 其中, 第一室外栅格和第二室外栅格的相对位置关系是根据第一 室外栅格的水平位置信息和第二室外栅格的水平位置信息计算得到的; 与室 内的第 p层的非边缘栅格相对应的室内的第 p层的边缘栅格和室内的第 p层 的非边缘栅格的相对位置关系是根据与室内的第 p层的非边缘栅格相对应的 室内的第 p层的边缘栅格的水平位置信息和室内的第 p层的非边缘栅格的水 平位置信息计算得到的;
根据与室内的第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m 层的栅格的小区信号强度信息, 确定室内的第 mp层的栅格的小区信号强度 信息, 可以包括:
根据第一室外栅格的小区信号强度信息、第二室外栅格的小区信号强度 信息和与室内的第 p层的非边缘栅格相对应的室内的第 p层的边缘栅格的小 区信号强度信息, 确定室内的第 p层的非边缘栅格的小区信号强度信息, 其 中, m等于 1。
其中, 第一室外栅格的环境相关度包括第一室外栅格与基站的天线的相 对位置关系; 与室内的第 p层的非边缘栅格相对应的室内的第 p层的边缘栅 格的环境相关度包括与室内的第 p层的非边缘栅格相对应的室内的第 p层的 边缘栅格与基站的天线的相对位置关系。
第一室外栅格和基站的天线的相对位置关系是根据第一室外栅格的水 平位置信息、高度信息和基站的天线的水平位置信息、高度信息计算得到的; 室内的第 p层的非边缘栅格相对应的室内的第 p层的边缘栅格和基站的天线 的相对位置关系是根据室内的第 p层的非边缘栅格相对应的室内的第 p层的 边缘栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度信 息计算得到的。
室内的第 p层的非边缘栅格的小区信号强度信息的确定方法与方法 200 中由室内的第 n层的边缘栅格的小区信号强度信息和室外的第 n层的栅格的 小区信号强度信息确定建筑物的第 n层的非边缘栅格的定位匹配信息的方法 类似, 为了简洁, 在此不再赘述。
因此, 本发明实施例提供的确定室内的栅格的小区信号强度信息的方 法, 根据室内的第 p层的栅格的水平位置信息, 确定与该室内的第 p层的栅 格相对应的室外的第 m层的栅格或室内的第 m层的栅格, 通过获取的相对 应的室外的第 m层的栅格或室内的第 m层的栅格的小区信号强度信息可以 确定该室内的第 p层的栅格的小区信号强度信息,从而能够得到准确度高的 室内的小区信号强度信息, 以便于进一步实现高精度的室内 3D定位。
应理解, 室内的第 p层的非边缘栅格的小区信号强度信息还可以由室内 的其它楼层的非边缘栅格的小区信号强度信息, 结合楼层间信号强度的损耗 关系确定, 本发明实施例对此不作限定。
上文中分别详细说明了了以室外的第 n层的栅格的小区信号强度信息确 定室内第 n层的栅格的小区信号强度信息的方法和以室外的第 m层的栅格或 室内的第 m层的栅格的小区信号强度信息确定室内的第 p层(当 n不等于 1 时, 第 n层可以与第 p层相同)的栅格的小区信号强度信的方法。 前者所确 定的小区信号强度信息更准确, 适用于建筑物中较高的楼层; 后者确定小区 信号强度信息的过程较简单, 适用于建筑物中较矮的楼层。 因此, 可将二者 结合起来, 例如, 在确定建筑物内的栅格的小区信号强度信息时, 可以先判 断楼层, 当楼层 n小于或等于 N时,釆取后者确定该层的栅格的小区信号强 度信息; 当建筑物的楼层 n大于 N时,釆取前者确定该层的栅格的小区信号 强度信息。 将两种方法分别确定的楼层的定位匹配信息合并, 可以获得整个 建筑物的各楼层的定位匹配信息。
因此, 本发明实施例提供的确定室内的栅格的小区信号强度信息的方 法, 根据室内的第 n层的栅格的水平位置信息, 确定与该室内的第 n层的栅 格相对应的室外的第 1层的栅格或室内的第 1层的栅格,通过获取的相对应 的室外的第 1层的栅格或室内的第 1层的栅格的小区信号强度信息可以确定 该室内的第 n层的栅格的小区信号强度信息,从而能够得到准确度高的室内 的小区信号强度信息, 以便于进一步实现高精度的室内 3D定位。
可选地, 作为又一个实施例, 室内的栅格中的非边缘栅格的小区信号强 度信息由以下步骤确定:
根据室内的第 k层的非边缘栅格的水平位置信息, 确定与该室内的第 k 层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格, 该距离是 根据栅格的水平位置信息计算得到的, 其中, k为大于或等于 1的整数; 获取该与该室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的小区信号强度信息;
根据基站的天线的工程参数信息, 通过仿真计算确定该与该室内的第 k 层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的仿真小区 信号强度信息和该室内的第 k层的非边缘栅格的仿真小区信号强度信息; 根据该与该室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的仿真小区信号强度信息、 该室内的第 k层的非边缘栅格的 仿真小区信号强度信息和该与该室内的第 k层的非边缘栅格的距离小于第三 阔值的室内的第 k层的边缘栅格的小区信号强度信息,确定该室内的第 k层 的非边缘栅格的小区信号强度信息。
具体地, 对于室内的任一层的非边缘栅格, 如室内的第 k层的非边缘栅 格而言, 可以根据其仿真小区信号强度信息, 以及距离其小于第三阔值的室 内的第 k层的边缘栅格的小区信号强度信息和仿真小区信号强度信息来确 定。 其中第三阔值可以取 20米、 30米或 50米。 优选地, 可以选取距离室内 的第 k层的非边缘栅格最近的室内的第 k层的边缘栅格。
如图 11所示, 选取距离室内的第 k层的非边缘栅格最近的室内的第 k 层的边缘栅格, 可以根据基站的天线的工程参数信息, 利用射线追踪等仿真 计算方法, 确定室内的第 k层的非边缘栅格的仿真小区信号强度信息, 以及 距离室内的第 k层的非边缘栅格最近的室内的第 k层的边缘栅格的仿真小区 信号强度信息。
设定室内的第 k层的非边缘栅格的仿真小区信号强度信息中某一小区的 信号强度和距离室内的第 k层的非边缘栅格最近的室内的第 k层的边缘栅格 的仿真小区信号强度信息中该小区的信号强度的差值为第五差值。设定室内 的第 k层的非边缘栅格的小区信号强度信息中某一小区的信号强度和距离室 内的第 k层的非边缘栅格最近的室内的第 k层的边缘栅格的小区信号强度信 息中该小区的信号强度的差值为第六差值。 根据第五差值和第六差值相等, 可以确定室内的第 k层的非边缘栅格的小区信号强度信息中该小区的信号强 度。 当然, 也可以设定第五差值和第六差值不相等, 而是相差某一经验值, 从而确定室内的第 k层的非边缘栅格的小区信号强度信息中该小区的信号强 度。
同样地, 可以参考与该室内的第 k层的非边缘栅格的距离小于第三阔值 的室内的第 k层的边缘栅格的仿真小区信号强度信息或小区信号强度信息中 的小区的信息, 或者室内的第 k层的非边缘栅格的仿真小区信号强度信息中 的小区的信息对室内的第 k层的非边缘栅格小区信号强度信息中的小区进行 补充, 本发明实施例对此不作限定。 此外, 室内的第 k层的边缘栅格的小区 信号强度信息可以来自于室内的测试数据,也可以是根据仿真算法或根据本 发明其它实施例计算获得的, 本发明实施例对此不作限定。
因此, 本发明实施例提供的确定室内的非边缘栅格的小区信号强度信息 的方法, 根据室内的第 k层的非边缘栅格的水平位置信息, 确定与该室内的 第 k层的非边缘栅格相对应的室内的第 k层的边缘栅格,根据室内的第 k层 的边缘栅格的小区信号强度信息,从而能够得到第 k层的非边缘栅格的小区 信号强度信息, 以便于进一步实现高精度的室内 3D定位。
上文中详细描述了获得了建筑物室内各楼层栅格的小区信号强度信息 的方法,栅格的水平位置信息、高度信息和小区信号强度信息组成了室内 3D 定位匹配信息, 多个定位匹配信息集合在一起可以称之为匹配特征库。 以下 将从更系统的角度, 描述确定建筑物室内匹配特征库的步骤。
基于 3D GIS提取所有建筑物的矢量轮廓信息、 高度信息等。 利用从 3D GIS提取的建筑物信息对建筑物进行 3D建模。 对建筑物的 3D模型进行楼 层的划分。 对每个建筑物室内的每楼层按 3D GIS分辨率或分辨率的倍数进 行栅格划分。 利用仿真工具对建筑物的楼层进行室内的仿真, 通过仿真可获 得每楼层对应栅格的小区信号强度信息。 由此获得建筑物的楼层的栅格的仿 真匹配特征库,每个栅格的仿真匹配特征信息包括通过仿真获得的该栅格栅 格的水平位置信息、 高度信息和小区信号强度信息等信息。
作为一个实施例, 图 12示出了对于建筑物的较低的楼层, 确定建筑物 室内匹配特征库的方法 400。 对于建筑物的较低的楼层, 室内信号强度值变 化符合一定规律, 釆用该方法较简单方便。 根据方法 400的主要特征, 方法 400也可称为"楼层穿透损耗确定法"。 方法 400包括:
S410, 在选取室外的第 1层的栅格时, 选取距离室内的第 1层的边缘栅 格为 50-60米(在此距离范围内, 基本不存在其它建筑物的阻碍, DT数据 或终端测试数据与室内的栅格的数据的衰减规律比较接近, 具有相似的信号 特征, 且点数也足够多, 符合数学中的统计特性)的室外的第 1层的栅格来 确定室内匹配特征库。
S420, 对室外的第 1层的栅格的数据进行处理。 考虑单个室外的第 1层 的栅格的测量值可能有较大随机误差, 因此将任一第 1层的栅格周围第一阔 值(第一阔值可取不同的值, 一般取 10米比较好, 因 10米范围的 DT点或 终端测试数据具有较高的特征相关性)范围内的室外的第 1层的栅格的数据 进行平滑处理, 获得相对稳定和精确的测量值(相同小区的信号强度作平均 处理)。
S430,对室内的第 1层的边缘栅格的仿真匹配特征信息只釆用其水平位 置信息,在室外的第 1层的栅格中确定一个距离与待确定的室内的第 1层的 边缘栅格最近的室外的第 1层的栅格。将二者相同的小区的信号强度用室外 的第 1层的栅格对应的信号强度经过墙体穿透损耗校正后代替。对于只在仿 真匹配特征库或只在室外的第 1层的栅格的数据中有的小区, 查询天线工程 参数库, 判断该小区与以上所得的相同小区的集合的真实地理位置接近程 度。 如果存在与其接近的小区, 在相似的传播环境下, 该小区也应该会被室 内的栅格接收到, 所以将其补充到室内的栅格的匹配特征信息中, 否则将该 小区舍弃。
S440,根据室内的第 1层的边缘栅格的匹配特征信息和室外的第 1层的 栅格的数据以及室内的第 1层的非边缘栅格的仿真匹配特征信息,确定室内 的第 1层的非边缘栅格的匹配特征信息。具体方法与上文中图 5所示的原理 和对应的描述一致, 此处不再赘述。
S450,根据以上步骤获得室内的第 1层的边缘栅格的匹配特征信息和非 边缘栅格的匹配特征信息后, 可获得室内的第 1层的所有栅格对应的匹配特 征库。
S460, 处于相同水平位置的室内的第 n层的边缘栅格的匹配特征信息, 通过对室内的第 1层的边缘栅格的小区的信号强度进行楼层穿透损耗来确定 (楼层穿透损耗可取不同的值, 一般取 3 (n-1) dB较好 ) 。
S470,根据室内的第 n层的边缘栅格的匹配特征信息和室外的第 1层的 栅格的数据, 确定室内的第 n层的非边缘栅格的匹配特征信息。 具体方法与 上文中对应的描述一致, 此处不再赘述。
S480,根据以上步骤获得室内的第 n层的边缘栅格的匹配特征信息和非 边缘栅格的匹配特征信息后, 可获得室内的第 n层的所有栅格对应的匹配特 征库。
S490, 根据以上步骤可以获得室内的所有楼层的栅格的匹配特征信息, 即可以获得室内的匹配特征库。
作为另一个实施例, 图 13示出了对于建筑物的较高的楼层, 确定建筑 物室内匹配特征库的方法 500。 对于建筑物的较高的楼层, 楼层间的损耗造 成室内信号强度值变化趋势不再平稳, 釆用该方法更精确。 根据方法 500的 主要特征, 方法 500也可称为"室外虚拟测试点确定法"。 方法 500包括:
S501至 S505选取室外的第 1层的栅格及确定室内的第 1层的栅格的匹 配特征信息的过程与方法 400 中 S410至 S450的过程相类似, 在此不再赘 述。
S506, 对建筑物外围邻近建筑物的空间参照室内的各楼层的高度, 利用 射线跟踪 3D仿真进行仿真生成仿真匹配特征库, 其中室外的各楼层的栅格 距离室内的第 n层栅格的水平距离为 50-60米。
5507,根据室外的第 1层的栅格的测试数据和室外的各楼层的仿真匹配 特征信息, 确定室外的各楼层的栅格的匹配特征信息。 具体方法与上文中图 7或图 8所示的原理和对应的描述一致, 此处不再赘述。
5508,根据墙体穿透损耗对室外的第 n层的栅格的匹配特征信息进行校 正, 确定室内的第 n层的边缘栅格的匹配特征信息。 具体方法与 S430中以 室外的第 1层的栅格的匹配特征信息确定室内的第 1层的边缘栅格的匹配特 征信息的原理和对应的描述一致, 此处不再赘述。
5509,根据室内的第 n层的边缘栅格的匹配特征信息和室外的第 n层的 栅格的数据以及室内的第 n层的非边缘栅格的仿真匹配特征信息,确定室内 的第 n层的非边缘栅格的匹配特征信息。 具体方法与 S440的原理和对应的 描述一致, 此处不再赘述。
5510,根据以上步骤获得室内的第 n层的边缘栅格的匹配特征信息和非 边缘栅格的匹配特征信息后, 可获得室内的第 n层的所有栅格对应的匹配特 征库。
5511 , 根据以上步骤可以获得室内的所有楼层的栅格的匹配特征信息, 即可以获得室内的匹配特征库。
作为又一个实施例, 图 14示出了对于建筑物的较低的楼层和较高的楼 层, 分别釆用不同的方法确定建筑物室内匹配特征信息的方法 600, 以进一 步提升匹配特征库的精度。根据方法 600的主要特征,方法 600也可称为"混 合确定法"。 方法 600包括:
S610, 低楼层和高楼层的划分。 设置划分规则, 将楼层划分成低楼层和 高楼层, 例如 n^ N为低楼层, n〉N为高楼层(N可取不同的值, 一般取 4 或 5 ) 。
S620, 低楼层用"楼层穿透损耗确定法"获得该楼层的匹配特征库。
S630, 高楼层用"室外虚拟测试点确定法"获得该楼层的匹配特征库。
S640,将以上两个方法分别校正的低楼层和高楼层的匹配特征库合并起 来, 形成该建筑室内的整体匹配特征库。
下面以一个具体的例子, 对整个匹配特征库的建立和 3D特征匹配定位 的过程进行综合描述。 如图 15所示, 从 3D GIS中提取建筑物的信息, 对建 筑物进行 3D建模, 根据建筑物的信息对建筑物进行楼层的划分, 对每个楼 层进行栅格划分, 而后结合天线的工程参数对建筑物进行 3D仿真, 至此, 可以构建 3D仿真匹配特征库, 这些数据可以直接作为 3D匹配特征库的数 据, 用于最终的 3D特征匹配定位。
获取室外的测试数据, 对室外的测试数据进行合并处理, 然后对该建筑 物周围的测试数据进行 选和相应处理。 使用这些测试数据对 3D仿真特征 库中的信息进行修正, 还可以利用室内测试数据对 3D仿真特征库中的信息 进行修正, 形成 3D匹配特征库以用于 3D特征匹配定位。
在进行 3D定位时, 可以直接从待定位的终端获取测量报告, 根据测量 报告中的信息与 3D匹配特征库相匹配, 确定终端的水平位置和高度。 还可 以根据终端的测量报告, 参考天线的工程参数首先对终端进行 2D定位。 根 据定位结果, 结合 3D GIS的信息对用户进行室内室外的区分。 在确定终端 位于室内后, 根据室内的 3D匹配特征库, 对终端进行精确定位。
应理解, 在本发明的各种实施例中, 各过程的序号的大小并不意味着执 行顺序的先后, 各过程的执行顺序应以其功能和内在逻辑确定, 而不应对本 发明实施例的实施过程构成任何限定。
上文中结合图 1至图 15,详细描述了根据本发明实施例的室内定位的方 法, 下面将结合图 16至图 18, 详细描述根据本发明实施例的室内定位的装 置。
图 16示出了根据本发明实施例的室内定位的装置 700的示意性框图。 如图 16所示, 该室内定位的装置 700包括:
获取模块 710, 用于获取处于室内的终端的当前小区信号强度信息; 第一确定模块 720, 用于根据室内三维 3D定位匹配信息, 确定与该获 取模块 710获取的该当前小区信号强度信息对应的室内的栅格的水平位置信 息和高度信息, 其中, 该室内 3D定位匹配信息包括室内的栅格的小区信号 强度信息与该室内的栅格的水平位置信息和高度信息的对应关系;
第二确定模块 730, 用于根据该第一确定模块 720确定的该与该当前小 区信号强度信息对应的室内的栅格的水平位置信息和高度信息,确定该终端 在该室内所处的水平位置和该终端所处的高度, 其中, 该水平位置信息包括 第一方向和第二方向的位置信息,该第一方向和该第二方向为水平面内相互 垂直的两个方向。
因此, 本发明实施例提供的室内定位的装置, 通过将处于室内的待定位 的终端的当前小区信号强度信息与室内三维 3D定位匹配信息中的小区信号 强度信息相匹配, 确定对应的室内的栅格的水平位置信息和高度信息, 从而 确定终端在室内所处的水平位置和终端所处的高度, 实现高精度的室内 3D 定位。
可选地, 作为一个实施例, 如图 17所示, 室内定位的装置 700还可以 包括用于确定该室内的栅格的小区信号强度信息的第三确定模块 740, 该第 三确定模块 740包括:
第一确定单元 741, 用于根据室内的第 n层的栅格的水平位置信息, 确 定与该室内的第 n层的栅格相对应的室外的第 n层的栅格, 其中, n为大于 或等于 1的整数;
第一获取单元 742, 用于获取该第一确定单元 741确定的该与该室内的 第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息;
第二确定单元 743, 用于根据该第一获取单元 742获取的该与该室内的 第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息,确定该室 内的第 n层的栅格的小区信号强度信息。
可选地, 当室内的第 n层的栅格为室内的第 n层的边缘栅格时, 第一确定单元 741具体用于:
根据室内的第 n层的边缘栅格的水平位置信息,确定与室内的第 n层的 边缘栅格的距离小于第一阔值的室外的第 n层的栅格,距离是根据栅格的水 平位置信息计算得到的;
第二确定单元 743具体用于:
根据与室内的第 n层的边缘栅格的距离小于第一阔值的室外的第 n层的 栅格的小区信号强度信息及墙内外信号强度的损耗关系,确定室内的第 n层 的边缘栅格的小区信号强度信息。
可选地, 当室内的第 n层的栅格为室内的第 n层的非边缘栅格时, 第一确定单元 741具体用于:
确定在水平位置信息中的任一方向上与室内的第 n层的非边缘栅格相对 应的室内的第 n层的边缘栅格;
确定第一室外栅格和第二室外栅格,第一室外栅格和第二室外栅格均为 室外的第 n层的栅格,其中,第一室外栅格和第二室外栅格的相对位置关系, 和与室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格和室内的 第 n层的非边缘栅格的相对位置关系一致, 并且第一室外栅格的环境相关度 和与室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格的环境相 关度一致; 其中, 第一室外栅格和第二室外栅格的相对位置关系是根据第一 室外栅格的水平位置信息和第二室外栅格的水平位置信息计算得到的; 与室 内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格和室内的第 n层 的非边缘栅格的相对位置关系是根据与室内的第 n层的非边缘栅格相对应的 室内的第 n层的边缘栅格的水平位置信息和室内的第 n层的非边缘栅格的水 平位置信息计算得到的;
第二确定单元 743具体用于:
根据第一室外栅格的小区信号强度信息、第二室外栅格的小区信号强度 信息, 以及与室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格 的小区信号强度信息,确定室内的第 n层的非边缘栅格的小区信号强度信息。
其中第一室外栅格的环境相关度包括第一室外栅格与基站的天线的相 对位置关系; 与室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅 格的环境相关度包括与室内的第 n层的非边缘栅格相对应的室内的第 n层的 边缘栅格与基站的天线的相对位置关系。
第一室外栅格和基站的天线的相对位置关系是根据第一室外栅格的水 平位置信息、高度信息和基站的天线的水平位置信息、高度信息计算得到的; 室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格和基站的天线 的相对位置关系是根据室内的第 n层的非边缘栅格相对应的室内的第 n层的 边缘栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度信 息计算得到的。
可选地, 当 n大于 1时, 第一获取单元 742具体用于:
根据基站的天线的工程参数信息,通过仿真计算确定与室内的第 n层的 栅格相对应的室外的第 n层的栅格的仿真小区信号强度信息和室外的第 1层 的栅格的仿真小区信号强度信息, 其中, 室外的第 1层的栅格的水平位置信 息和与室内的第 n层的栅格相对应的室外的第 n层的栅格的水平位置信息一 致;
根据与室内的第 n层的栅格相对应的室外的第 n层的栅格的仿真小区信 号强度信息、 室外的第 1层的栅格的仿真小区信号强度信息和室外的第 1层 的栅格的小区信号强度信息,确定与室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息。
可选地, 当 n大于 1时, 第一获取单元 742具体用于:
根据基站的天线的工程参数信息, 通过仿真计算确定室外的第 n-1层的 栅格的仿真小区信号强度信息和室外的第 n层的栅格的仿真小区信号强度信 息, 其中, 室外的第 n-1层的栅格和室外的第 n层的栅格均与该与室内的第 n-1层的栅格相对应的室外的第 n-1层的栅格在第一方向和第二方向的位置 信息一致, 室外的第 n-1层的栅格的高度与室内的第 n-1层的栅格的高度相 等, 室外的第 n层的栅格的高度与室内的第 n层的栅格的高度相等;
确定室外的第 n-1层的栅格的小区信号强度信息;
根据室外的第 n-1层的栅格的仿真小区信号强度信息、 室外的第 n层的 栅格的仿真小区信号强度信息以及室外的第 n-1层的栅格的小区信号强度信 息, 确定室外的第 n层的栅格的小区信号强度信息。
可选地, 当 n等于 1时, 第一获取单元 742具体用于:
获取与室内的第 1层的栅格相对应的室外的第 1层的栅格的测试数据, 测试数据包括与室内的第 1层的栅格相对应的室外的第 1层的栅格的水平位 置信息和小区信号强度信息;
根据小区信号强度的衰减随距离的变化规律,删除测试数据中的误差数 据, 其中, 小区信号强度的衰减随距离的变化规律是根据多个室外的第 1层 的栅格的小区信号强度信息和多个室外的第 1层的栅格的水平位置信息得到 的;
确定删除误差数据后的测试数据中的小区信号强度信息为与室内的第 1 层的栅格相对应的室外的第 1层的栅格的小区信号强度信息。
可选地,在第一获取单元 742根据小区信号强度的衰减随距离的变化规 律, 删除测试数据中的误差数据之后, 第一获取单元 742还用于:
根据与该与室内的第 1层的栅格相对应的室外的第 1层的栅格的距离小 于第二阔值的多个室外的第 1层的栅格的小区信号强度信息,对删除误差数 据后的测试数据中的小区信号强度信息进行平滑处理;
第一获取单元 742确定删除误差数据后的测试数据中的小区信号强度信 息为与室内的第 1层的栅格相对应的室外的第 1层的栅格的小区信号强度信 息, 包括:
确定删除误差数据后的测试数据中经过平滑处理后的小区信号强度信 息为与室内的第 1层的栅格相对应的室外的第 1层的栅格的小区信号强度信 息。
因此, 本发明实施例提供的确定室内的栅格的小区信号强度信息的模 块, 根据室内的第 n层的栅格的水平位置信息, 确定与该室内的第 n层的栅 格相对应的室外的第 n层的栅格,通过获取的相对应的室外的第 n层的栅格 的小区信号强度信息可以确定该室内的第 n层的栅格的小区信号强度信息, 从而能够得到准确度高的室内的小区信号强度信息, 以便于室内定位的装置 进一步实现高精度的室内 3D定位。
可选地, 作为另一个实施例, 如图 18所示, 室内定位的装置 700还可 以包括用于确定该室内的栅格的小区信号强度信息的第四确定模块 750, 该 第四确定模块 750包括:
第三确定单元 751, 用于根据室内的第 p层的栅格的水平位置信息, 确 定与该室内的第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m层 的栅格;
第二获取单元 752, 用于获取该第三确定单元 751确定的该与该室内的 第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m层的栅格的小区 信号强度信息
第四确定单元 753, 用于根据该第二获取单元 752获取的该与该室内的 第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m层的栅格的小区 信号强度信息, 确定该室内的第 p层的栅格的小区信号强度信息, 其中, p 为大于 1的整数, m为小于 p的正整数, 该第 1层的高度为地面高度, 该第 p层的高度高于地面高度。
可选地, 当该室内的第 p层的栅格为室内的第 p层的边缘栅格时, 该第三确定单元 751具体用于:
确定与该室内的第 p层的边缘栅格相对应的室内的第 1层的边缘栅格, 其中, 该与该室内的第 p层的边缘栅格相对应的室内的第 1层的边缘栅格的 水平位置信息与该室内的第 p层的栅格的水平位置信息一致;
该第四确定单元 753具体用于:
根据该与该室内的第 p层的边缘栅格相对应的室内的第 1层的边缘栅格 的小区信号强度信息及楼层间信号强度的损耗关系,确定该室内的第 p层的 边缘栅格的小区信号强度信息。
可选地, 当该室内的第 p层的栅格为室内的第 p层的非边缘栅格时, 该第三确定单元 751具体用于:
确定在水平位置信息中的任一方向上与该室内的第 p层的非边缘栅格相 对应的室内的第 p层的边缘栅格;
确定第一室外栅格和第二室外栅格,该第一室外栅格和该第二室外栅格 均为室外的第 1层的栅格, 其中, 该第一室外栅格和该第二室外栅格的相对 位置关系, 和与该室内的第 p层的非边缘栅格相对应的该室内的第 p层的边 缘栅格和该室内的第 p层的非边缘栅格的相对位置关系一致, 并且该第一室 外栅格的环境相关度和与该室内的第 p层的非边缘栅格相对应的该室内的第 p层的边缘栅格的环境相关度一致; 其中, 该第一室外栅格和该第二室外栅 格的相对位置关系是根据该第一室外栅格的水平位置信息和该第二室外栅 格的水平位置信息计算得到的; 该与该室内的第 p层的非边缘栅格相对应的 该室内的第 p层的边缘栅格和该室内的第 p层的非边缘栅格的相对位置关系 是根据与该室内的第 p层的非边缘栅格相对应的该室内的第 p层的边缘栅格 的水平位置信息和该室内的第 p 层的非边缘栅格的水平位置信息计算得到 的;
该第四确定单元 753具体用于:
根据该第一室外栅格的小区信号强度信息、该第二室外栅格的小区信号 强度信息和与该室内的第 p层的非边缘栅格相对应的该室内的第 p层的边缘 栅格的小区信号强度信息,确定该室内的第 p层的非边缘栅格的小区信号强 度信息。
其中,该第一室外栅格的环境相关度包括该第一室外栅格与基站的天线 的相对位置关系; 该与该室内的第 p层的非边缘栅格相对应的该室内的第 p 层的边缘栅格的环境相关度包括该与该室内的第 p层的非边缘栅格相对应的 该室内的第 p层的边缘栅格与该基站的天线的相对位置关系。
该第一室外栅格和基站的天线的相对位置关系是根据该第一室外栅格 的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度信息计算得 到的; 该室内的第 p层的非边缘栅格相对应的该室内的第 p层的边缘栅格和 基站的天线的相对位置关系是根据该室内的第 p层的非边缘栅格相对应的该 室内的第 p层的边缘栅格的水平位置信息、 高度信息和基站的天线的水平位 置信息、 高度信息计算得到的。
优选地, m等于 1, 即第四确定模块 750根据与该室内的第 p层的栅格 相对应的室内的第 1层的栅格或室外的第 1层的栅格的小区信号强度信息, 确定该室内的第 p层的栅格的小区信号强度信息。
可选地, 作为又一个实施例, 装置 700还可以包括用于确定室内的栅格 中的非边缘栅格的小区信号强度信息的第五确定模块, 该第五确定模块包 括:
第五确定单元, 用于根据室内的第 k层的非边缘栅格的水平位置信息, 确定与该室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的 边缘栅格, 该距离是根据栅格的水平位置信息计算得到的, 其中, k为大于 或等于 1的整数;
第三获取单元,用于获取该第五确定单元确定的该与该室内的第 k层的 非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的小区信号强度 信息;
第六确定单元, 用于根据基站的天线的工程参数信息, 通过仿真计算确 定该与该室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的 边缘栅格的仿真小区信号强度信息和该室内的第 k层的非边缘栅格的仿真小 区信号强度信息;
第七确定单元,用于根据该第六确定单元确定的该与该室内的第 k层的 非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的仿真小区信号 强度信息、该室内的第 k层的非边缘栅格的仿真小区信号强度信息和该第三 获取单元获取的该与该室内的第 k层的非边缘栅格的距离小于第三阔值的室 内的第 k层的边缘栅格的小区信号强度信息,确定该室内的第 k层的非边缘 栅格的小区信号强度信息。
因此, 本发明实施例提供的确定室内的栅格的小区信号强度信息的模 块, 根据室内的第 n层的栅格的水平位置信息, 确定与该室内的第 n层的栅 格相对应的室外的第 1层的栅格或室内的第 1层的栅格,通过获取的相对应 的室外的第 1层的栅格或室内的第 1层的栅格的小区信号强度信息可以确定 该室内的第 n层的栅格的小区信号强度信息,从而能够得到准确度高的室内 的小区信号强度信息, 以便于室内定位的装置进一步实现高精度的室内 3D 定位。
应理解, 在本发明实施例中, 根据本发明实施例的室内定位的装置 700 可对应于根据本发明实施例的方法的执行主体, 并且室内定位的装置 700中 的各个模块的上述和其它操作和 /或功能分别为了实现图 i至图 15中的各个 方法的相应流程, 为了简洁, 在此不再赘述。
因此, 本发明实施例提供的室内定位的装置, 通过将处于室内的待定位 的终端的当前小区信号强度信息与室内三维 3D定位匹配信息中的小区信号 强度信息相匹配, 确定对应的室内的栅格的水平位置信息和高度信息, 从而 确定终端在室内所处的水平位置和终端所处的高度, 可以实现高精度的室内
3D定位。
如图 19所示,本发明实施例还提供了一种室内定位的装置 800,其特征 在于,该装置 800包括处理器 810、存储器 820、收发器 830和总线装置 840, 处理器 810、 存储器 820、 收发器 830通过总线装置 840相连, 存储器 820 用于存储指令, 处理器 810用于执行存储器 820存储的指令, 其中, 收发器 830用于:
获取处于室内的终端的当前小区信号强度信息;
处理器 810用于:
才艮据室内三维 3D定位匹配信息, 确定与该当前小区信号强度信息对应 的室内的栅格的水平位置信息和高度信息, 其中, 室内 3D定位匹配信息包 括室内的栅格的小区信号强度信息与该室内的栅格的水平位置信息和高度 信息的对应关系;
根据与该当前小区信号强度信息对应的室内的栅格的水平位置信息和 高度信息,确定该终端在该室内所处的水平位置和该终端所处的高度,其中, 该水平位置信息包括第一方向和第二方向的位置信息,该第一方向和该第二 方向为水平面内相互垂直的两个方向。
因此, 本发明实施例提供的室内定位的装置, 通过将处于室内的待定位 的终端的当前小区信号强度信息与室内三维 3D定位匹配信息中的小区信号 强度信息相匹配, 确定对应的室内的栅格及其水平位置信息和高度信息, 从 而确定终端在室内所处的水平位置和终端所处的高度,可以实现高精度的室 内 3D定位。
应理解,在本发明实施例中,该处理器 810可以是中央处理单元( Central Processing Unit, CPU ), 该处理器 810还可以是其他通用处理器、 数字信号 处理器 (DSP )、 专用集成电路(ASIC )、 现成可编程门阵列 (FPGA )或者 其他可编程逻辑器件、 分立门或者晶体管逻辑器件、 分立硬件组件等。 通用 处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器 820可以包括只读存储器和随机存取存储器,并向处理器 1010 提供指令和数据。存储器 820的一部分还可以包括非易失性随机存取存储器。 例如, 存储器 820还可以存储设备类型的信息。 该总线系统 840除包括数据总线之外, 还可以包括电源总线、 控制总线 和状态信号总线等。 但是为了清楚说明起见, 在图中将各种总线都标为总线 系统 840。
在实现过程中, 上述方法的各步骤可以通过处理器 810中的硬件的集成 逻辑电路或者软件形式的指令完成。 结合本发明实施例所公开的方法的步骤 可以直接体现为硬件处理器执行完成, 或者用处理器中的硬件及软件模块组 合执行完成。 软件模块可以位于随机存储器, 闪存、 只读存储器, 可编程只 读存储器或者电可擦写可编程存储器、 寄存器等本领域成熟的存储介质中。 该存储介质位于存储器 820, 处理器 810读取存储器 820中的信息, 结合其 硬件完成上述方法的步骤。 为避免重复, 这里不再详细描述。
可选地, 作为一个实施例, 处理器 810还用于确定室内的栅格的小区信 号强度信息, 具体用于执行以下步骤:
根据室内的第 n层的栅格的水平位置信息,确定与该室内的第 n层的栅 格相对应的室外的第 n层的栅格, 其中, n为大于或等于 1的整数;
获取与该室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号 强度信息;
根据与该室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号 强度信息, 确定该室内的第 n层的栅格的小区信号强度信息。
可选地, 当室内的第 n层的栅格为室内的第 n层的边缘栅格时, 处理器 810根据室内的第 n层的栅格的水平位置信息, 确定与室内的第 n层的栅格 相对应的室外的第 n层的栅格, 可以包括::
根据室内的第 n层的边缘栅格的水平位置信息,确定与室内的第 n层的 边缘栅格的距离小于第一阔值的室外的第 n层的栅格,距离是根据栅格的水 平位置信息计算得到的;
处理器 810根据与室内的第 n层的栅格相对应的室外的第 n层的栅格的 小区信号强度信息, 确定室内的第 n层的栅格的小区信号强度信息, 可以包 括:
根据与室内的第 n层的边缘栅格的距离小于第一阔值的室外的第 n层的 栅格的小区信号强度信息及墙内外信号强度的损耗关系,确定室内的第 n层 的边缘栅格的小区信号强度信息。
可选地, 当室内的第 n层的栅格为室内的第 n层的非边缘栅格时, 处理 器 810根据室内的第 n层的栅格的水平位置信息,确定与室内的第 n层的栅 格相对应的室外的第 n层的栅格, 可以包括:
确定在水平位置信息中的任一方向上与室内的第 n层的非边缘栅格相对 应的室内的第 n层的边缘栅格;
确定第一室外栅格和第二室外栅格,第一室外栅格和第二室外栅格均为 室外的第 n层的栅格,其中,第一室外栅格和第二室外栅格的相对位置关系, 和与室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格和室内的 第 n层的非边缘栅格的相对位置关系一致, 并且第一室外栅格的环境相关度 和与室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格的环境相 关度一致; 其中, 第一室外栅格和第二室外栅格的相对位置关系是根据第一 室外栅格的水平位置信息和第二室外栅格的水平位置信息计算得到的; 与室 内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格和室内的第 n层 的非边缘栅格的相对位置关系是根据与室内的第 n层的非边缘栅格相对应的 室内的第 n层的边缘栅格的水平位置信息和室内的第 n层的非边缘栅格的水 平位置信息计算得到的;
处理器 810根据与室内的第 n层的栅格相对应的室外的第 n层的栅格的 小区信号强度信息, 确定室内的第 n层的栅格的小区信号强度信息, 可以包 括:
根据第一室外栅格的小区信号强度信息、第二室外栅格的小区信号强度 信息, 以及与室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格 的小区信号强度信息,确定室内的第 n层的非边缘栅格的小区信号强度信息。
可选地,第一室外栅格的环境相关度包括第一室外栅格与基站的天线的 相对位置关系; 与室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘 栅格的环境相关度包括与室内的第 n层的非边缘栅格相对应的室内的第 n层 的边缘栅格与基站的天线的相对位置关系。
可选地,第一室外栅格和基站的天线的相对位置关系是根据第一室外栅 格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度信息计算 得到的; 室内的第 n层的非边缘栅格相对应的室内的第 n层的边缘栅格和基 站的天线的相对位置关系是 居室内的第 n层的非边缘栅格相对应的室内的 第 n层的边缘栅格的水平位置信息、高度信息和基站的天线的水平位置信息、 高度信息计算得到的。 可选地, 当 n大于 1时, 处理器 810获取与室内的第 n层的栅格相对应 的室外的第 n层的栅格的小区信号强度信息, 可以包括:
根据基站的天线的工程参数信息,通过仿真计算确定与室内的第 n层的 栅格相对应的室外的第 n层的栅格的仿真小区信号强度信息和室外的第 1层 的栅格的仿真小区信号强度信息, 其中, 室外的第 1层的栅格的水平位置信 息和与室内的第 n层的栅格相对应的室外的第 n层的栅格的水平位置信息一 致;
根据与室内的第 n层的栅格相对应的室外的第 n层的栅格的仿真小区信 号强度信息、 室外的第 1层的栅格的仿真小区信号强度信息和室外的第 1层 的栅格的小区信号强度信息,确定与室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息。
可选地, 当 n大于 1时, 处理器 810获取与室内的第 n层的栅格相对应 的室外的第 n层的栅格的小区信号强度信息, 可以包括:
根据基站的天线的工程参数信息, 通过仿真计算确定室外的第 n-1层的 栅格的仿真小区信号强度信息和室外的第 n层的栅格的仿真小区信号强度信 息, 其中, 室外的第 n-1层的栅格和室外的第 n层的栅格均与该与室内的第 n-1层的栅格相对应的室外的第 n-1层的栅格在第一方向和第二方向的位置 信息一致, 室外的第 n-1层的栅格的高度与室内的第 n-1层的栅格的高度相 等, 室外的第 n层的栅格的高度与室内的第 n层的栅格的高度相等;
确定室外的第 n-1层的栅格的小区信号强度信息;
根据室外的第 n-1层的栅格的仿真小区信号强度信息、 室外的第 n层的 栅格的仿真小区信号强度信息以及室外的第 n-1层的栅格的小区信号强度信 息, 确定室外的第 n层的栅格的小区信号强度信息。
可选地, 当 n等于 1时, 处理器 810获取与室内的第 n层的栅格相对应 的室外的第 n层的栅格的小区信号强度信息, 可以包括:
获取与室内的第 1层的栅格相对应的室外的第 1层的栅格的测试数据, 测试数据包括与室内的第 1层的栅格相对应的室外的第 1层的栅格的水平位 置信息和小区信号强度信息;
根据小区信号强度的衰减随距离的变化规律,删除测试数据中的误差数 据, 其中, 小区信号强度的衰减随距离的变化规律是根据多个室外的第 1层 的栅格的小区信号强度信息和多个室外的第 1层的栅格的水平位置信息得到 的;
确定删除误差数据后的测试数据中的小区信号强度信息为与室内的第 1 层的栅格相对应的室外的第 1层的栅格的小区信号强度信息。
可选地, 处理器 810在根据小区信号强度的衰减随距离的变化规律, 删 除测试数据中的误差数据之后, 还可以用于:
根据与该与室内的第 1层的栅格相对应的室外的第 1层的栅格的距离小 于第二阔值的多个室外的第 1层的栅格的小区信号强度信息,对删除误差数 据后的测试数据中的小区信号强度信息进行平滑处理;
处理器 810确定删除误差数据后的测试数据中的小区信号强度信息为与 室内的第 1层的栅格相对应的室外的第 1层的栅格的小区信号强度信息, 可 以包括:
确定删除误差数据后的测试数据中经过平滑处理后的小区信号强度信 息为与室内的第 1层的栅格相对应的室外的第 1层的栅格的小区信号强度信 息。
可选地, 作为另一个实施例, 处理器 810还用于确定室内的栅格的小区 信号强度信息, 具体用于执行以下步骤:
根据室内的第 p层的栅格的水平位置信息,确定与该室内的第 p层的栅 格相对应的室内的第 m层的栅格或室外的第 m层的栅格
获取与该室内的第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m层的栅格的小区信号强度信息;
根据与该室内的第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m层的栅格的小区信号强度信息,确定该室内的第 p层的栅格的小区信号强 度信息, 其中, p为大于 1的整数, m为小于 p的正整数, 该第 1层的高度 为地面高度, 该第 p层的高度高于地面高度。
可选地, 当室内的第 p层的栅格为室内的第 p层的边缘栅格时, 处理器
810根据室内的第 p层的栅格的水平位置信息, 确定与该室内的第 p层的栅 格相对应的室内的第 1层的栅格或室外的第 1层的栅格, 可以包括:
确定与该室内的第 p层的边缘栅格相对应的室内的第 1层的边缘栅格, 其中, 该与该室内的第 p层的边缘栅格相对应的室内的第 1层的边缘栅格的 水平位置信息与该室内的第 p层的栅格的水平位置信息一致;
处理器 810根据该与该室内的第 p层的栅格相对应的室内的第 1层的栅 格或室外的第 1层的栅格的小区信号强度信息,确定该室内的第 1层的栅格 的小区信号强度信息, 可以包括:
根据该与该室内的第 p层的边缘栅格相对应的室内的第 1层的边缘栅格 的小区信号强度信息及楼层间信号强度的损耗关系,确定该室内的第 p层的 边缘栅格的小区信号强度信息。
可选地, 当室内的第 p层的栅格为室内的第 p层的非边缘栅格时, 处理 器 810根据室内的第 p层的栅格的水平位置信息,确定与所述室内的第 p层 的栅格相对应的室内的第 1层的栅格或室外的第 1层的栅格, 可以包括: 确定在水平位置信息中的任一方向上与所述室内的第 p层的非边缘栅格 相对应的室内的第 p层的边缘栅格;
确定第一室外栅格和第二室外栅格,所述第一室外栅格和所述第二室外 栅格均为室外的第 1层的栅格, 其中, 所述第一室外栅格和所述第二室外栅 格的相对位置关系, 和与所述室内的第 p层的非边缘栅格相对应的所述室内 的第 p层的边缘栅格和所述室内的第 p层的非边缘栅格的相对位置关系一 致, 并且所述第一室外栅格的环境相关度和与所述室内的第 p层的非边缘栅 格相对应的所述室内的第 p层的边缘栅格的环境相关度一致; 其中, 所述第 一室外栅格和所述第二室外栅格的相对位置关系是根据所述第一室外栅格 的水平位置信息和所述第二室外栅格的水平位置信息计算得到的; 所述与所 述室内的第 p层的非边缘栅格相对应的所述室内的第 p层的边缘栅格和所述 室内的第 p层的非边缘栅格的相对位置关系是根据与所述室内的第 p层的非 边缘栅格相对应的所述室内的第 p层的边缘栅格的水平位置信息和所述室内 的第 p层的非边缘栅格的水平位置信息计算得到的;
处理器 810根据与所述室内的第 p层的栅格相对应的室内的第 1层的栅 格或室外的第 1层的栅格的小区信号强度信息,确定所述室内的第 p层的栅 格的小区信号强度信息, 可以包括:
根据所述第一室外栅格的小区信号强度信息、所述第二室外栅格的小区 信号强度信息和与所述室内的第 p层的非边缘栅格相对应的所述室内的第 p 层的边缘栅格的小区信号强度信息,确定所述室内的第 p层的非边缘栅格的 小区信号强度信息。
可选地,第一室外栅格的环境相关度包括所述第一室外栅格与基站的天 线的相对位置关系; 所述与所述室内的第 p层的非边缘栅格相对应的所述室 内的第 p层的边缘栅格的环境相关度包括所述与所述室内的第 p层的非边缘 栅格相对应的所述室内的第 p层的边缘栅格与所述基站的天线的相对位置关 系。
可选地,第一室外栅格和基站的天线的相对位置关系是根据所述第一室 外栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度信息 计算得到的; 所述室内的第 p层的非边缘栅格相对应的所述室内的第 p层的 边缘栅格和基站的天线的相对位置关系是根据所述室内的第 p层的非边缘栅 格相对应的所述室内的第 p层的边缘栅格的水平位置信息、 高度信息和基站 的天线的水平位置信息、 高度信息计算得到的。
可选地, 作为又一个实施例, 处理器 810还用于确定室内的栅格中的非 边缘栅格的小区信号强度信息, 具体步骤包括:
根据室内的第 k层的非边缘栅格的水平位置信息, 确定与该室内的第 k 层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格, 该距离是 根据栅格的水平位置信息计算得到的, 其中, k为大于或等于 1的整数; 获取该与该室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的小区信号强度信息;
根据基站的天线的工程参数信息, 通过仿真计算确定该与该室内的第 k 层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的仿真小区 信号强度信息和该室内的第 k层的非边缘栅格的仿真小区信号强度信息; 根据该与该室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的仿真小区信号强度信息、 该室内的第 k层的非边缘栅格的 仿真小区信号强度信息和该与该室内的第 k层的非边缘栅格的距离小于第三 阔值的室内的第 k层的边缘栅格的小区信号强度信息,确定该室内的第 k层 的 边缘栅格的小区信号强度信息。
应理解,在本发明实施例中,根据本发明实施例的室内定位的装置 800, 可对应于根据本发明实施例的方法的执行主体,还可以对应于室内定位的装 置 700,并且该装置 800中的各个模块的上述和其它操作和 /或功能分别为了 实现图 1至图 15中的各个方法的相应流程, 为了简洁, 在此不再赘述。
因此, 本发明实施例提供的室内定位的装置, 通过将处于室内的待定位 的终端的当前小区信号强度信息与室内三维 3D定位匹配信息中的小区信号 强度信息相匹配, 确定对应的室内的栅格的水平位置信息和高度信息, 从而 确定终端在室内所处的水平位置和终端所处的高度, 可以实现高精度的室内
3D定位。
本发明实施例提供的室内定位的装置可以以功能模块的形式部署在基 站中, 也可以是一个单独的定位服务器, 本发明实施例对此不作限定。
图 20为本发明一个实施例中具有室内定位功能的基站的结构示意图, 如图 20所示,图 20示出了一种基站的具体实施例,在该实施例中,基站 900 包括发射电路 910、接收电路 920、处理器 930、存储器 940、编码处理器 950、 解码处理器 960、 天线 970及总线系统 980。 处理器 930控制基站 900的操 作, 其中可以包括用于定位的一个或多个模块。 存储器 940可以包括只读存 储器和随机存取存储器, 并向处理器 930提供指令和数据。 存储器 940的一 部分还可以包括非易失行随机存取存储器( NVRAM ) 。 具体到本发明实施 例中, 存储器 940可以用于存储室内定位匹配信息。
具体的应用中,基站 900可以包括容纳发射电路 910和接收电路 920的 载体, 以允许基站 900和远程位置之间进行数据发射和接收。 发射电路 910 和接收电路 920可以耦合到天线 970。基站 900的各个组件通过总线系统 980 耦合在一起, 其中总线系统 980除包括数据总线之外, 还包括电源总线、 控 制总线和状态信号总线。 但是为了清楚说明起见, 在图中将各种总线都标为 总线系统 980。 基站 900还可以包括编码处理器 950和解码处理器 960, 用 于对发送或接收的信号进行编解码。
上述本发明实施例揭示的方法可以应用于处理器 930中, 或者说由处理 器 930 实现, 上述本发明实施例中的室内定位的装置可以具体为上述图 20 所示的基站来实现。 处理器 930可能是一种集成电路芯片, 具有指令和数据 的执行能力, 以及信号的处理能力。 在实现过程中, 上述方法的各步骤可以 通过处理器 930中的硬件的集成逻辑电路或者软件形式的指令完成。上述的 处理器可以是通用处理器 (CPU ) 、 数字信号处理器 (DSP ) 、 专用集成电 路(ASIC ) 、 现成可编程门阵列 (FPGA )或者其他可编程逻辑器件、 分立 门或者晶体管逻辑器件、 分立硬件组件。 可以实现或者执行本发明实施例中 的公开的各方法、 步骤及逻辑框图。 通用处理器可以是微处理器或者该处理 器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可 以直接体现为硬件处理器执行完成, 或者用处理器中的硬件及软件模块组合 执行完成。 软件模块可以位于随机存储器, 闪存、 只读存储器, 可编程只读 存储器或者电可擦写可编程存储器、 寄存器等本领域成熟的存储介质中。 该 存储介质位于存储器 940, 处理器读取存储器 940中的信息, 结合其硬件完 成上述方法的步骤。
应理解, 在本发明各实施例的示意图中, 基站至示意性的列出了 1个或 3个。 对于一个建筑物, 可覆盖它的基站可能有一个也可能有多个, 甚至也 可能出现基站覆盖不到的建筑物, 本发明实施例对此不作限定。
应理解, 在本发明各实施例中, 上述各过程的序号的大小并不意味着执 行顺序的先后, 各过程的执行顺序应以其功能和内在逻辑确定, 而不应对本 发明实施例的实施过程构成任何限定。
另外, 本文中术语"和 /或", 仅仅是一种描述关联对象的关联关系, 表示 可以存在三种关系, 例如, A和 /或 可以表示: 单独存在 , 同时存在 A 和 B, 单独存在 B这三种情况。 另外, 本文中字符" /", 一般表示前后关联对 象是一种"或"的关系。
本领域普通技术人员可以意识到, 结合本文中所公开的实施例描述的各 示例的单元及算法步骤, 能够以电子硬件、 计算机软件或者二者的结合来实 现, 为了清楚地说明硬件和软件的可互换性, 在上述说明中已经按照功能一 般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执 行, 取决于技术方案的特定应用和设计约束条件。 专业技术人员可以对每个 特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超 出本发明的范围。
所属领域的技术人员可以清楚地了解到, 为了描述的方便和简洁, 上述 描述的系统、 装置和单元的具体工作过程, 可以参考前述方法实施例中的对 应过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统、 装置和 方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示 意性的, 例如, 单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可以有 另外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个系 统, 或一些特征可以忽略, 或不执行。 另外, 所显示或讨论的相互之间的耦 合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接辆合或通 信连接, 也可以是电的, 机械的或其它的形式连接。 元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者 也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全 部单元来实现本发明实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理存在, 也可以是两个或两个以上单元集成在 一个单元中。 上述集成的单元既可以釆用硬件的形式实现, 也可以釆用软件 功能单元的形式实现。
集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或 使用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发 明的技术方案本质上或者说对现有技术做出贡献的部分, 或者该技术方案的 全部或部分可以以软件产品的形式体现出来, 该计算机软件产品存储在一个 存储介质中, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例方法的全部或部分步骤。 而前述的存储介质包括: U盘、移动硬盘、只读存储器(Read-Only Memory, ROM ), 随机存取存储器(Random Access Memory, RAM ), 磁碟或者光盘 等各种可以存储程序代码的介质。
以上,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到各 种等效的修改或替换, 这些修改或替换都应涵盖在本发明的保护范围之内。 因此, 本发明的保护范围应以权利要求的保护范围为准。

Claims

权 利 要 求
1、 一种室内定位的方法, 其特征在于, 包括:
获取处于室内的终端的当前小区信号强度信息;
才艮据室内三维 3D定位匹配信息, 确定与所述当前小区信号强度信息对 应的室内的栅格的水平位置信息和高度信息, 其中, 所述室内 3D定位匹配 信息包括室内的栅格的小区信号强度信息与所述室内的栅格的水平位置信 息和高度信息的对应关系;
根据所述与所述当前小区信号强度信息对应的室内的栅格的水平位置 信息和高度信息,确定所述终端在所述室内所处的水平位置和所述终端所处 的高度, 其中, 所述水平位置信息包括第一方向和第二方向的位置信息, 所 述第一方向和所述第二方向为水平面内相互垂直的两个方向。
2、 根据权利要求 1所述的方法, 其特征在于, 所述室内的栅格的小区 信号强度信息由以下步骤确定:
根据室内的第 n层的栅格的水平位置信息,确定与所述室内的第 n层的 栅格相对应的室外的第 n层的栅格, 其中, n为大于或等于 1的整数;
获取所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的小 区信号强度信息;
根据所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的小 区信号强度信息, 确定所述室内的第 n层的栅格的小区信号强度信息。
3、 根据权利要求 2所述的方法, 其特征在于, 当所述室内的第 n层的 栅格为室内的第 n层的边缘栅格时,
所述根据室内的第 n层的栅格的水平位置信息, 确定与所述室内的第 n 层的栅格相对应的室外的第 n层的栅格, 包括:
才艮据所述室内的第 n层的边缘栅格的水平位置信息,确定与所述室内的 第 n层的边缘栅格的距离小于第一阔值的室外的第 n层的栅格, 所述距离是 根据栅格的水平位置信息计算得到的;
所述根据所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格 的小区信号强度信息, 确定所述室内的第 n层的栅格的小区信号强度信息, 包括:
根据所述与所述室内的第 n层的边缘栅格的距离小于第一阔值的室外的 第 n层的栅格的小区信号强度信息及墙内外信号强度的损耗关系,确定所述 室内的第 n层的边缘栅格的小区信号强度信息。
4、 根据权利要求 2所述的方法, 其特征在于, 当所述室内的第 n层的 栅格为室内的第 n层的非边缘栅格时,
所述根据室内的第 n层的栅格的水平位置信息, 确定与所述室内的第 n 层的栅格相对应的室外的第 n层的栅格, 包括:
确定在水平位置信息中的任一方向上与所述室内的第 n层的非边缘栅格 相对应的室内的第 n层的边缘栅格;
确定第一室外栅格和第二室外栅格,所述第一室外栅格和所述第二室外 栅格均为室外的第 n层的栅格, 其中, 所述第一室外栅格和所述第二室外栅 格的相对位置关系, 和与所述室内的第 n层的非边缘栅格相对应的所述室内 的第 n层的边缘栅格和所述室内的第 n层的非边缘栅格的相对位置关系一 致, 并且所述第一室外栅格的环境相关度和与所述室内的第 n层的非边缘栅 格相对应的所述室内的第 n层的边缘栅格的环境相关度一致; 其中, 所述第 一室外栅格和所述第二室外栅格的相对位置关系是根据所述第一室外栅格 的水平位置信息和所述第二室外栅格的水平位置信息计算得到的; 所述与所 述室内的第 n层的非边缘栅格相对应的所述室内的第 n层的边缘栅格和所述 室内的第 n层的非边缘栅格的相对位置关系是根据与所述室内的第 n层的非 边缘栅格相对应的所述室内的第 n层的边缘栅格的水平位置信息和所述室内 的第 n层的非边缘栅格的水平位置信息计算得到的;
所述根据所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格 的小区信号强度信息, 确定所述室内的第 n层的栅格的小区信号强度信息, 包括:
根据所述第一室外栅格的小区信号强度信息、所述第二室外栅格的小区 信号强度信息, 以及与所述室内的第 n层的非边缘栅格相对应的所述室内的 第 n层的边缘栅格的小区信号强度信息,确定所述室内的第 n层的非边缘栅 格的小区信号强度信息。
5、 根据权利要求 4所述的方法, 其特征在于, 所述第一室外栅格的环 境相关度包括所述第一室外栅格与基站的天线的相对位置关系; 所述与所述 室内的第 n层的非边缘栅格相对应的所述室内的第 n层的边缘栅格的环境相 关度包括所述与所述室内的第 n层的非边缘栅格相对应的所述室内的第 n层 的边缘栅格与所述基站的天线的相对位置关系。
6、 根据权利要求 5所述的方法, 其特征在于, 所述第一室外栅格和基 站的天线的相对位置关系是根据所述第一室外栅格的水平位置信息、 高度信 息和基站的天线的水平位置信息、 高度信息计算得到的; 所述室内的第 n层 的非边缘栅格相对应的所述室内的第 n层的边缘栅格和基站的天线的相对位 置关系是根据所述室内的第 n层的非边缘栅格相对应的所述室内的第 n层的 边缘栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度信 息计算得到的。
7、根据权利要求 2至 6中任一项所述的方法, 其特征在于, 当 n大于 1 时, 所述获取所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格 的小区信号强度信息, 包括:
根据基站的天线的工程参数信息, 通过仿真计算确定与所述室内的第 n 层的栅格相对应的所述室外的第 n层的栅格的仿真小区信号强度信息和室外 的第 1层的栅格的仿真小区信号强度信息, 其中, 所述室外的第 1层的栅格 的水平位置信息和所述与所述室内的第 n层的栅格相对应的所述室外的第 n 层的栅格的水平位置信息一致;
根据所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的仿 真小区信号强度信息、所述室外的第 1层的栅格的仿真小区信号强度信息和 所述室外的第 1层的栅格的小区信号强度信息, 确定所述与所述室内的第 n 层的栅格相对应的室外的第 n层的栅格的小区信号强度信息。
8、根据权利要求 2至 6中任一项所述的方法, 其特征在于, 当 n大于 1 时, 所述获取所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格 的小区信号强度信息, 包括:
根据基站的天线的工程参数信息, 通过仿真计算确定室外的第 n-1层的 栅格的仿真小区信号强度信息和室外的第 n层的栅格的仿真小区信号强度信 息, 其中, 所述室外的第 n-1层的栅格和所述室外的第 n层的栅格均与所述 与所述室内的第 n-1层的栅格相对应的室外的第 n-1层的栅格在所述第一方 向和所述第二方向的位置信息一致, 室外的第 n-1层的栅格的高度与室内的 第 n-1层的栅格的高度相等, 室外的第 n层的栅格的高度与室内的第 n层的 栅格的高度相等;
确定所述室外的第 n-1层的栅格的小区信号强度信息;
根据所述室外的第 n-1层的栅格的仿真小区信号强度信息、 室外的第 n 层的栅格的仿真小区信号强度信息以及所述室外的第 n-1层的栅格的小区信 号强度信息, 确定所述室外的第 n层的栅格的小区信号强度信息。
9、根据权利要求 2至 6中任一项所述的方法, 其特征在于, 当 n等于 1 时, 所述获取所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格 的小区信号强度信息, 包括:
获取所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的测 试数据, 所述测试数据包括所述与所述室内的第 1层的栅格相对应的室外的 第 1层的栅格的水平位置信息和小区信号强度信息;
根据小区信号强度的衰减随距离的变化规律,删除所述测试数据中的误 差数据, 其中, 所述小区信号强度的衰减随距离的变化规律是根据多个室外 的第 1层的栅格的小区信号强度信息和多个室外的第 1层的栅格的水平位置 信息得到的;
确定删除误差数据后的所述测试数据中的小区信号强度信息为所述与 所述室内的第 1 层的栅格相对应的室外的第 1 层的栅格的小区信号强度信 息。
10、 根据权利要求 9所述的方法, 其特征在于, 在根据小区信号强度的 衰减随距离的变化规律, 删除所述测试数据中的误差数据之后, 所述方法还 包括:
根据与所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的 距离小于第二阔值的多个室外的第 1层的栅格的小区信号强度信息,对删除 误差数据后的所述测试数据中的小区信号强度信息进行平滑处理;
所述确定删除误差数据后的所述测试数据中的小区信号强度信息为所 述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的小区信号强度 信息, 包括:
确定删除误差数据后的所述测试数据中经过所述平滑处理后的小区信 号强度信息为所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格 的小区信号强度信息。
11、 根据权利要求 1所述的方法, 其特征在于, 所述室内的栅格的小区 信号强度信息由以下步骤确定:
根据室内的第 p层的栅格的水平位置信息,确定与所述室内的第 p层的 栅格相对应的室内的第 m层的栅格或室外的第 m层的栅格; 获取所述与所述室内的第 p层的栅格相对应的室内的第 m层的栅格或室 外的第 m层的栅格的小区信号强度信息;
根据所述与所述室内的第 p层的栅格相对应的室内的第 m层的栅格或室 外的第 m层的栅格的小区信号强度信息,确定所述室内的第 p层的栅格的小 区信号强度信息, 其中, p为大于 1的整数, m为小于 p的正整数, 所述第 p层的高度高于地面高度。
12、 根据权利要求 11所述的方法, 其特征在于, 当所述室内的第 p层 的栅格为室内的第 p层的边缘栅格时,
所述根据室内的第 p层的栅格的水平位置信息, 确定与所述室内的第 p 层的栅格相对应的室内的第 1层的栅格或室外的第 1层的栅格, 包括:
确定与所述室内的第 p层的边缘栅格相对应的室内的第 1 层的边缘栅 格, 其中, 所述与所述室内的第 p层的边缘栅格相对应的室内的第 1层的边 缘栅格的水平位置信息与所述室内的第 p层的栅格的水平位置信息一致; 所述根据所述与所述室内的第 p层的栅格相对应的室内的第 1层的栅格 或室外的第 1层的栅格的小区信号强度信息,确定所述室内的第 1层的栅格 的小区信号强度信息, 包括:
根据所述与所述室内的第 p层的边缘栅格相对应的室内的第 1层的边缘 栅格的小区信号强度信息及楼层间信号强度的损耗关系,确定所述室内的第 p层的边缘栅格的小区信号强度信息。
13、 根据权利要求 11所述的方法, 其特征在于, 当所述室内的第 p层 的栅格为室内的第 p层的非边缘栅格时,
所述根据室内的第 p层的栅格的水平位置信息, 确定与所述室内的第 p 层的栅格相对应的室内的第 1层的栅格或室外的第 1层的栅格, 包括:
确定在水平位置信息中的任一方向上与所述室内的第 p层的非边缘栅格 相对应的室内的第 p层的边缘栅格;
确定第一室外栅格和第二室外栅格,所述第一室外栅格和所述第二室外 栅格均为室外的第 1层的栅格, 其中, 所述第一室外栅格和所述第二室外栅 格的相对位置关系, 和与所述室内的第 p层的非边缘栅格相对应的所述室内 的第 p层的边缘栅格和所述室内的第 p层的非边缘栅格的相对位置关系一 致, 并且所述第一室外栅格的环境相关度和与所述室内的第 p层的非边缘栅 格相对应的所述室内的第 p层的边缘栅格的环境相关度一致; 其中, 所述第 一室外栅格和所述第二室外栅格的相对位置关系是根据所述第一室外栅格 的水平位置信息和所述第二室外栅格的水平位置信息计算得到的; 所述与所 述室内的第 p层的非边缘栅格相对应的所述室内的第 p层的边缘栅格和所述 室内的第 p层的非边缘栅格的相对位置关系是根据与所述室内的第 p层的非 边缘栅格相对应的所述室内的第 p层的边缘栅格的水平位置信息和所述室内 的第 p层的非边缘栅格的水平位置信息计算得到的;
所述根据所述与所述室内的第 p层的栅格相对应的室内的第 1层的栅格 或室外的第 1层的栅格的小区信号强度信息,确定所述室内的第 p层的栅格 的小区信号强度信息, 包括:
根据所述第一室外栅格的小区信号强度信息、所述第二室外栅格的小区 信号强度信息和与所述室内的第 p层的非边缘栅格相对应的所述室内的第 p 层的边缘栅格的小区信号强度信息,确定所述室内的第 p层的非边缘栅格的 小区信号强度信息。
14、 根据权利要求 13所述的方法, 其特征在于, 所述第一室外栅格的 环境相关度包括所述第一室外栅格与基站的天线的相对位置关系; 所述与所 述室内的第 p层的非边缘栅格相对应的所述室内的第 p层的边缘栅格的环境 相关度包括所述与所述室内的第 p层的非边缘栅格相对应的所述室内的第 p 层的边缘栅格与所述基站的天线的相对位置关系。
15、 根据权利要求 14所述的方法, 其特征在于, 所述第一室外栅格和 基站的天线的相对位置关系是根据所述第一室外栅格的水平位置信息、 高度 信息和基站的天线的水平位置信息、 高度信息计算得到的; 所述室内的第 p 层的非边缘栅格相对应的所述室内的第 p层的边缘栅格和基站的天线的相对 位置关系是根据所述室内的第 p层的非边缘栅格相对应的所述室内的第 p层 的边缘栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度 信息计算得到的。
16、 根据权利要求 11至 15中任一项所述的方法, 其特征在于, m等于
1。
17、 根据权利要求 1所述的方法, 其特征在于, 室内的栅格中的非边缘 栅格的小区信号强度信息由以下步骤确定:
根据室内的第 k层的非边缘栅格的水平位置信息,确定与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格, 所述距 离是根据栅格的水平位置信息计算得到的,其中, k为大于或等于 1的整数; 获取所述与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内 的第 k层的边缘栅格的小区信号强度信息;
根据基站的天线的工程参数信息,通过仿真计算确定所述与所述室内的 第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的仿真 小区信号强度信息和所述室内的第 k层的非边缘栅格的仿真小区信号强度信 息;
根据所述与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内 的第 k层的边缘栅格的仿真小区信号强度信息、所述室内的第 k层的非边缘 栅格的仿真小区信号强度信息和所述与所述室内的第 k层的非边缘栅格的距 离小于第三阔值的室内的第 k层的边缘栅格的小区信号强度信息,确定所述 室内的第 k层的非边缘栅格的小区信号强度信息。
18、 一种室内定位的装置, 其特征在于, 包括:
获取模块, 用于获取处于室内的终端的当前小区信号强度信息; 第一确定模块, 用于根据室内三维 3D定位匹配信息, 确定与所述获取 模块获取的所述当前小区信号强度信息对应的室内的栅格的水平位置信息 和高度信息, 其中, 所述室内 3D定位匹配信息包括室内的栅格的小区信号 强度信息与所述室内的栅格的水平位置信息和高度信息的对应关系;
第二确定模块,用于根据所述第一确定模块确定的所述与所述当前小区 信号强度信息对应的室内的栅格的水平位置信息和高度信息,确定所述终端 在所述室内所处的水平位置和所述终端所处的高度, 其中, 所述水平位置信 息包括第一方向和第二方向的位置信息, 所述第一方向和所述第二方向为水 平面内相互垂直的两个方向。
19、 根据权利要求 18所述的装置, 其特征在于, 所述装置还包括用于 确定所述室内的栅格的小区信号强度信息的第三确定模块, 该第三确定模块 包括:
第一确定单元, 用于根据室内的第 n层的栅格的水平位置信息, 确定与 所述室内的第 n层的栅格相对应的室外的第 n层的栅格, 其中, n为大于或 等于 1的整数;
第一获取单元,用于获取所述第一确定单元确定的所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息; 第二确定单元,用于根据所述第一获取单元获取的所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的小区信号强度信息, 确定所述室 内的第 n层的栅格的小区信号强度信息。
20、 根据权利要求 19所述的装置, 其特征在于, 当所述室内的第 n层 的栅格为室内的第 n层的边缘栅格时,
所述第一确定单元具体用于:
才艮据所述室内的第 n层的边缘栅格的水平位置信息,确定与所述室内的 第 n层的边缘栅格的距离小于第一阔值的室外的第 n层的栅格, 所述距离是 根据栅格的水平位置信息计算得到的;
所述第二确定单元具体用于:
根据所述与所述室内的第 n层的边缘栅格的距离小于第一阔值的室外的 第 n层的栅格的小区信号强度信息及墙内外信号强度的损耗关系,确定所述 室内的第 n层的边缘栅格的小区信号强度信息。
21、 根据权利要求 19所述的装置, 其特征在于, 当所述室内的第 n层 的栅格为室内的第 n层的非边缘栅格时,
所述第一确定单元具体用于:
确定在水平位置信息中的任一方向上与所述室内的第 n层的非边缘栅格 相对应的室内的第 n层的边缘栅格;
确定第一室外栅格和第二室外栅格,所述第一室外栅格和所述第二室外 栅格均为室外的第 n层的栅格, 其中, 所述第一室外栅格和所述第二室外栅 格的相对位置关系, 和与所述室内的第 n层的非边缘栅格相对应的所述室内 的第 n层的边缘栅格和所述室内的第 n层的非边缘栅格的相对位置关系一 致, 并且所述第一室外栅格的环境相关度和与所述室内的第 n层的非边缘栅 格相对应的所述室内的第 n层的边缘栅格的环境相关度一致; 其中, 所述第 一室外栅格和所述第二室外栅格的相对位置关系是根据所述第一室外栅格 的水平位置信息和所述第二室外栅格的水平位置信息计算得到的; 所述与所 述室内的第 n层的非边缘栅格相对应的所述室内的第 n层的边缘栅格和所述 室内的第 n层的非边缘栅格的相对位置关系是根据与所述室内的第 n层的非 边缘栅格相对应的所述室内的第 n层的边缘栅格的水平位置信息和所述室内 的第 n层的非边缘栅格的水平位置信息计算得到的;
所述第二确定单元具体用于: 根据所述第一室外栅格的小区信号强度信息、所述第二室外栅格的小区 信号强度信息, 以及与所述室内的第 n层的非边缘栅格相对应的所述室内的 第 n层的边缘栅格的小区信号强度信息,确定所述室内的第 n层的非边缘栅 格的小区信号强度信息。
22、 根据权利要求 21所述的装置, 其特征在于, 所述第一室外栅格的 环境相关度包括所述第一室外栅格与基站的天线的相对位置关系; 所述与所 述室内的第 n层的非边缘栅格相对应的所述室内的第 n层的边缘栅格的环境 相关度包括所述与所述室内的第 n层的非边缘栅格相对应的所述室内的第 n 层的边缘栅格与所述基站的天线的相对位置关系。
23、 根据权利要求 22所述的装置, 其特征在于, 所述第一室外栅格和 基站的天线的相对位置关系是根据所述第一室外栅格的水平位置信息、 高度 信息和基站的天线的水平位置信息、 高度信息计算得到的; 所述室内的第 n 层的非边缘栅格相对应的所述室内的第 n层的边缘栅格和基站的天线的相对 位置关系是根据所述室内的第 n层的非边缘栅格相对应的所述室内的第 n层 的边缘栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度 信息计算得到的。
24、 根据权利要求 19至 23中任一项所述的装置, 其特征在于, 当 n大 于 1时, 所述第一获取单元具体用于:
根据基站的天线的工程参数信息, 通过仿真计算确定与所述室内的第 n 层的栅格相对应的所述室外的第 n层的栅格的仿真小区信号强度信息和室外 的第 1层的栅格的仿真小区信号强度信息, 其中, 所述室外的第 1层的栅格 的水平位置信息和所述与所述室内的第 n层的栅格相对应的所述室外的第 n 层的栅格的水平位置信息一致;
根据所述与所述室内的第 n层的栅格相对应的室外的第 n层的栅格的仿 真小区信号强度信息、所述室外的第 1层的栅格的仿真小区信号强度信息和 所述室外的第 1层的栅格的小区信号强度信息, 确定所述与所述室内的第 n 层的栅格相对应的室外的第 n层的栅格的小区信号强度信息。
25、 根据权利要求 19至 23中任一项所述的装置, 其特征在于, 当 n大 于 1时, 所述第一获取单元具体用于:
根据基站的天线的工程参数信息, 通过仿真计算确定室外的第 n-1层的 栅格的仿真小区信号强度信息和室外的第 n层的栅格的仿真小区信号强度信 息, 其中, 所述室外的第 n-1层的栅格和所述室外的第 n层的栅格均与所述 与所述室内的第 n-1层的栅格相对应的室外的第 n-1层的栅格在所述第一方 向和所述第二方向的位置信息一致, 室外的第 n-1层的栅格的高度与室内的 第 n-1层的栅格的高度相等, 室外的第 n层的栅格的高度与室内的第 n层的 栅格的高度相等;
确定所述室外的第 n-1层的栅格的小区信号强度信息;
根据所述室外的第 n-1层的栅格的仿真小区信号强度信息、 室外的第 n 层的栅格的仿真小区信号强度信息以及所述室外的第 n-1层的栅格的小区信 号强度信息, 确定所述室外的第 n层的栅格的小区信号强度信息。
26、 根据权利要求 19至 23中任一项所述的装置, 其特征在于, 当 n等 于 1时, 所述第一获取单元具体用于:
获取所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的测 试数据, 所述测试数据包括所述与所述室内的第 1层的栅格相对应的室外的 第 1层的栅格的水平位置信息和小区信号强度信息;
根据小区信号强度的衰减随距离的变化规律,删除所述测试数据中的误 差数据, 其中, 所述小区信号强度的衰减随距离的变化规律是根据多个室外 的第 1层的栅格的小区信号强度信息和多个室外的第 1层的栅格的水平位置 信息得到的;
确定删除误差数据后的所述测试数据中的小区信号强度信息为所述与 所述室内的第 1 层的栅格相对应的室外的第 1 层的栅格的小区信号强度信 息。
27、 根据权利要求 26所述的装置, 其特征在于, 在所述第一获取单元 根据小区信号强度的衰减随距离的变化规律,删除所述测试数据中的误差数 据之后, 所述第一获取单元还用于:
根据与所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的 距离小于第二阔值的多个室外的第 1层的栅格的小区信号强度信息,对删除 误差数据后的所述测试数据中的小区信号强度信息进行平滑处理;
所述第一获取单元确定删除误差数据后的所述测试数据中的小区信号 强度信息为所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格的 小区信号强度信息, 包括:
确定删除误差数据后的所述测试数据中经过所述平滑处理后的小区信 号强度信息为所述与所述室内的第 1层的栅格相对应的室外的第 1层的栅格 的小区信号强度信息。
28、 根据权利要求 18所述的装置, 其特征在于, 所述装置还包括用于 确定所述室内的栅格的小区信号强度信息的第四确定模块, 该第四确定模块 包括:
第三确定单元, 用于根据室内的第 p层的栅格的水平位置信息, 确定与 所述室内的第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m层的 栅格;
第二获取单元,用于获取所述第三确定单元确定的所述与所述室内的第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m层的栅格的小区信 号强度信息
第四确定单元,用于根据所述第二获取单元获取的所述与所述室内的第 p层的栅格相对应的室内的第 m层的栅格或室外的第 m层的栅格的小区信 号强度信息, 确定所述室内的第 p层的栅格的小区信号强度信息, 其中, p 为大于 1的整数, m为小于 p的正整数, 所述第 p层的高度高于地面高度。
29、 根据权利要求 28所述的装置, 其特征在于, 当所述室内的第 p层 的栅格为室内的第 p层的边缘栅格时,
所述第三确定单元具体用于:
确定与所述室内的第 p层的边缘栅格相对应的室内的第 1 层的边缘栅 格, 其中, 所述与所述室内的第 p层的边缘栅格相对应的室内的第 1层的边 缘栅格的水平位置信息与所述室内的第 p层的栅格的水平位置信息一致; 所述第四确定单元具体用于:
根据所述与所述室内的第 p层的边缘栅格相对应的室内的第 1层的边缘 栅格的小区信号强度信息及楼层间信号强度的损耗关系,确定所述室内的第 p层的边缘栅格的小区信号强度信息。
30、 根据权利要求 28所述的装置, 其特征在于, 当所述室内的第 p层 的栅格为室内的第 p层的非边缘栅格时,
所述第三确定单元具体用于:
确定在水平位置信息中的任一方向上与所述室内的第 p层的非边缘栅格 相对应的室内的第 p层的边缘栅格;
确定第一室外栅格和第二室外栅格,所述第一室外栅格和所述第二室外 栅格均为室外的第 1层的栅格, 其中, 所述第一室外栅格和所述第二室外栅 格的相对位置关系, 和与所述室内的第 p层的非边缘栅格相对应的所述室内 的第 p层的边缘栅格和所述室内的第 p层的非边缘栅格的相对位置关系一 致, 并且所述第一室外栅格的环境相关度和与所述室内的第 p层的非边缘栅 格相对应的所述室内的第 p层的边缘栅格的环境相关度一致; 其中, 所述第 一室外栅格和所述第二室外栅格的相对位置关系是根据所述第一室外栅格 的水平位置信息和所述第二室外栅格的水平位置信息计算得到的; 所述与所 述室内的第 p层的非边缘栅格相对应的所述室内的第 p层的边缘栅格和所述 室内的第 p层的非边缘栅格的相对位置关系是根据与所述室内的第 p层的非 边缘栅格相对应的所述室内的第 p层的边缘栅格的水平位置信息和所述室内 的第 p层的非边缘栅格的水平位置信息计算得到的;
所述第四确定单元具体用于:
根据所述第一室外栅格的小区信号强度信息、所述第二室外栅格的小区 信号强度信息和与所述室内的第 p层的非边缘栅格相对应的所述室内的第 p 层的边缘栅格的小区信号强度信息,确定所述室内的第 p层的非边缘栅格的 小区信号强度信息。
31、 根据权利要求 30所述的装置, 其特征在于, 所述第一室外栅格的 环境相关度包括所述第一室外栅格与基站的天线的相对位置关系; 所述与所 述室内的第 p层的非边缘栅格相对应的所述室内的第 p层的边缘栅格的环境 相关度包括所述与所述室内的第 p层的非边缘栅格相对应的所述室内的第 p 层的边缘栅格与所述基站的天线的相对位置关系。
32、 根据权利要求 31所述的装置, 其特征在于, 所述第一室外栅格和 基站的天线的相对位置关系是根据所述第一室外栅格的水平位置信息、 高度 信息和基站的天线的水平位置信息、 高度信息计算得到的; 所述室内的第 p 层的非边缘栅格相对应的所述室内的第 p层的边缘栅格和基站的天线的相对 位置关系是根据所述室内的第 p层的非边缘栅格相对应的所述室内的第 p层 的边缘栅格的水平位置信息、 高度信息和基站的天线的水平位置信息、 高度 信息计算得到的。
33、 根据权利要求 28至 32中任一项所述的装置, 其特征在于, m等于 1。
34、 根据权利要求 18所述的装置, 其特征在于, 所述装置还包括用于 确定室内的栅格中的非边缘栅格的小区信号强度信息的第五确定模块, 所述 第五确定模块包括:
第五确定单元, 用于根据室内的第 k层的非边缘栅格的水平位置信息, 确定与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层 的边缘栅格, 所述距离是根据栅格的水平位置信息计算得到的, 其中, k为 大于或等于 1的整数;
第三获取单元,用于获取所述第五确定单元确定的所述与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的小区信 号强度信息;
第六确定单元, 用于根据基站的天线的工程参数信息, 通过仿真计算确 定所述与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k 层的边缘栅格的仿真小区信号强度信息和所述室内的第 k层的非边缘栅格的 仿真小区信号强度信息;
第七确定单元,用于根据所述第六确定单元确定的所述与所述室内的第 k层的非边缘栅格的距离小于第三阔值的室内的第 k层的边缘栅格的仿真小 区信号强度信息、所述室内的第 k层的非边缘栅格的仿真小区信号强度信息 和所述第三获取单元获取的所述与所述室内的第 k层的非边缘栅格的距离小 于第三阔值的室内的第 k层的边缘栅格的小区信号强度信息,确定所述室内 的第 k层的非边缘栅格的小区信号强度信息。
PCT/CN2014/081284 2014-06-30 2014-06-30 室内定位的方法和装置 Ceased WO2016000179A1 (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1020157022815A KR101846831B1 (ko) 2014-06-30 2014-06-30 실내 위치결정 방법 및 장치
PCT/CN2014/081284 WO2016000179A1 (zh) 2014-06-30 2014-06-30 室内定位的方法和装置
EP14880376.0A EP2990830B1 (en) 2014-06-30 2014-06-30 Method and device for indoor positioning
CN201480079612.2A CN106415316B (zh) 2014-06-30 2014-06-30 室内定位的方法和装置
CN201910607707.1A CN110430535B (zh) 2014-06-30 2014-06-30 室内定位的方法和装置
US14/983,116 US9462424B2 (en) 2014-06-30 2015-12-29 Indoor positioning method and apparatus
US15/258,989 US9906923B2 (en) 2014-06-30 2016-09-07 Indoor positioning method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/081284 WO2016000179A1 (zh) 2014-06-30 2014-06-30 室内定位的方法和装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/983,116 Continuation US9462424B2 (en) 2014-06-30 2015-12-29 Indoor positioning method and apparatus

Publications (1)

Publication Number Publication Date
WO2016000179A1 true WO2016000179A1 (zh) 2016-01-07

Family

ID=55018264

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/081284 Ceased WO2016000179A1 (zh) 2014-06-30 2014-06-30 室内定位的方法和装置

Country Status (5)

Country Link
US (2) US9462424B2 (zh)
EP (1) EP2990830B1 (zh)
KR (1) KR101846831B1 (zh)
CN (2) CN110430535B (zh)
WO (1) WO2016000179A1 (zh)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160025497A1 (en) * 2014-07-24 2016-01-28 Harman International Industries, Incorporated Pre-caching of navigation content based on cellular network coverage
WO2016023576A1 (en) * 2014-08-12 2016-02-18 Nokia Solutions And Networks Oy Position determination of network elements and user equipment in indoor environment
US10129698B2 (en) 2016-07-14 2018-11-13 United Parcel Service Of America, Inc. Internal location address and automatic routing of intra-facility movement
CN107393330B (zh) * 2017-06-12 2020-12-29 纵目科技(上海)股份有限公司 人车汇合的路线规划方法及系统、车载终端、智能终端
CN107655481A (zh) * 2017-09-21 2018-02-02 广东工业大学 一种基于Qcell的导航方法、装置及计算机可读存储介质
CN107995594B (zh) * 2017-11-28 2020-12-08 中国联合网络通信集团有限公司 一种确定lte网络覆盖质量的方法和装置
CN109874112B (zh) * 2017-12-05 2021-06-15 华为技术有限公司 一种定位的方法及终端
WO2019118713A1 (en) * 2017-12-15 2019-06-20 Walmart Apollo, Llc System for determining the location of an autonomous vehicle when a location system is offline
CN109085624B (zh) * 2018-07-04 2022-11-25 百度在线网络技术(北京)有限公司 基于定位信号强度的室内外定位方法、装置及计算机设备
CN110392356B (zh) * 2019-06-03 2020-09-04 西京学院 一种基于波束匹配的室内定位方法
CN112533253B (zh) * 2020-12-10 2023-08-29 中国联合网络通信集团有限公司 移动网络信号强度计算方法、装置、电子设备及存储介质
GB2630069A (en) * 2023-05-16 2024-11-20 Nokia Technologies Oy Method, apparatus and computer program
CN118803879B (zh) * 2023-07-25 2025-10-31 中国移动通信集团设计院有限公司 一种小区方位角估算方法、装置、电子设备和存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102927980A (zh) * 2012-10-12 2013-02-13 深圳市宇恒互动科技开发有限公司 一种基于三维多点无线与微惯导的室内定位系统、方法
US20130310081A1 (en) * 2012-05-18 2013-11-21 Winitech Co., Ltd. Indoor positioning service system usingbeacon nodes
CN103841642A (zh) * 2014-03-10 2014-06-04 北京工业大学 一种三维室内定位方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4234039B2 (ja) * 2004-03-05 2009-03-04 アルパイン株式会社 衛星測位装置及びナビゲーション装置
JP2007537614A (ja) * 2004-09-17 2007-12-20 ラディアント テクノロジーズ,インク. グリッドパターンマッチングに基づく移動通信端末機の位置決定方法およびシステム
KR100723680B1 (ko) 2005-08-05 2007-05-30 에스케이 텔레콤주식회사 실내외 환경에서 gps를 이용한 위치 측정 방법 및 이를이용한 위치 기반 서비스 제공 방법, 시스템 및 장치
KR100750897B1 (ko) * 2006-09-26 2007-08-22 삼성중공업 주식회사 실내 위치측정시스템을 이용한 3차원 측정 시스템 및리스케일 방법
CN101267374B (zh) * 2008-04-18 2010-08-04 清华大学 基于神经网络和无线局域网基础架构的2.5d定位方法
CN101998232B (zh) * 2009-08-19 2013-07-10 财团法人工业技术研究院 移动装置定位方法及设备
US8831507B2 (en) * 2010-02-17 2014-09-09 Broadcom Corporation Method and system for determining a position fix indoors
KR101740259B1 (ko) 2011-10-07 2017-05-29 한국전자통신연구원 3차원 포인트 클라우드의 공간 분할 방법
US9170113B2 (en) * 2012-02-24 2015-10-27 Google Inc. System and method for mapping an indoor environment
JP6079060B2 (ja) * 2012-08-29 2017-02-15 株式会社リコー 携帯端末、画像形成方法及び画像形成システム
CN103415069A (zh) * 2012-11-01 2013-11-27 上海物联网有限公司 一种基于传感网和蜂窝网融合的移动节点定位算法
US8849308B2 (en) * 2012-11-21 2014-09-30 Apple Inc. Tiling of map data
US9020191B2 (en) * 2012-11-30 2015-04-28 Qualcomm Incorporated Image-based indoor position determination
HK1217994A1 (zh) * 2013-03-15 2017-01-27 耐克斯特纳威公司 用於使用三维位置信息改进定位服务的系统和方法
CN103561465B (zh) * 2013-10-28 2018-10-26 厦门雅迅网络股份有限公司 一种基于概率指纹的多基站定位方法
CN103702338B (zh) * 2013-12-24 2017-04-12 英国Ranplan无线网络设计公司 一种快速建立室内无线信号指纹数据库的方法
CN103763769B (zh) * 2013-12-26 2017-07-04 北京邮电大学 基于接入点重选择和自适应簇分裂的室内指纹定位方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130310081A1 (en) * 2012-05-18 2013-11-21 Winitech Co., Ltd. Indoor positioning service system usingbeacon nodes
CN102927980A (zh) * 2012-10-12 2013-02-13 深圳市宇恒互动科技开发有限公司 一种基于三维多点无线与微惯导的室内定位系统、方法
CN103841642A (zh) * 2014-03-10 2014-06-04 北京工业大学 一种三维室内定位方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2990830A4 *

Also Published As

Publication number Publication date
US9462424B2 (en) 2016-10-04
EP2990830A1 (en) 2016-03-02
US9906923B2 (en) 2018-02-27
EP2990830A4 (en) 2016-03-16
CN106415316A (zh) 2017-02-15
KR20160016749A (ko) 2016-02-15
CN110430535A (zh) 2019-11-08
EP2990830B1 (en) 2021-09-29
US20160381513A1 (en) 2016-12-29
US20160112845A1 (en) 2016-04-21
CN110430535B (zh) 2021-12-31
CN106415316B (zh) 2019-07-09
KR101846831B1 (ko) 2018-04-09

Similar Documents

Publication Publication Date Title
CN106415316B (zh) 室内定位的方法和装置
US11635484B2 (en) Frequency transformed radiomap data set
US9049550B2 (en) Nodes and methods for positioning
CN107850656B (zh) 用于确定定位目的的模型参数的方法、装置和系统
US10534065B2 (en) Estimation of a level for an observation data set
US20180109925A1 (en) 3D Sectorized Path-Loss Models for 3D Positioning of Mobile Terminals
US20150133167A1 (en) Techniques for efficient rf heat map representation
CN103181224A (zh) 使用日志数据估计ap位置的方法及其装置和终端
CN107678051A (zh) 一种定位的方法及相关设备
EP2664167B1 (en) Nodes and methods for positioning
US20120039316A1 (en) Method of generating map, and method of measuring location of terminal using the map
Meng et al. A study of network-side 5G user localization using angle-based fingerprints
CN102769866A (zh) 一种室内外业务数据的区分方法及设备
WO2023029899A1 (zh) 一种定位方法及装置
Vin et al. Multipath component distance-based fingerprinting technique for non-cooperative outdoor localization in NLOS scenarios
CN110519767A (zh) 一种NB-IoT覆盖预测方法及装置
WO2015010282A1 (zh) 用户设备的定位方法、装置及系统
CN121334590A (zh) 一种感知方法和装置
Shi-Sue et al. A framework using fingerprinting for signal overlapping-based method in WLAN

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2014880376

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 20157022815

Country of ref document: KR

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14880376

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE