WO2022078267A1 - 车辆和设备定位的方法 - Google Patents

车辆和设备定位的方法 Download PDF

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Publication number
WO2022078267A1
WO2022078267A1 PCT/CN2021/122912 CN2021122912W WO2022078267A1 WO 2022078267 A1 WO2022078267 A1 WO 2022078267A1 CN 2021122912 W CN2021122912 W CN 2021122912W WO 2022078267 A1 WO2022078267 A1 WO 2022078267A1
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WO
WIPO (PCT)
Prior art keywords
bluetooth slave
bluetooth
pin
module
slave module
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/CN2021/122912
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English (en)
French (fr)
Inventor
夏翠
魏奥婷
王飞
王川宿
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.)
Chery Automobile Co Ltd
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Chery Automobile 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.)
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Publication date
Application filed by Chery Automobile Co Ltd filed Critical Chery Automobile Co Ltd
Priority to EP21879312.3A priority Critical patent/EP4207838A4/en
Priority to US18/248,158 priority patent/US12550109B2/en
Publication of WO2022078267A1 publication Critical patent/WO2022078267A1/zh
Priority to ZA2023/04392A priority patent/ZA202304392B/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0084—Measuring voltage only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-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
    • G01S5/14—Determining absolute distances from a plurality of spaced points of known location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds

Definitions

  • the present application relates to the application field of automotive electronic systems, and in particular, to a method for positioning vehicles and equipment.
  • the hardware part of the bluetooth key is mainly the bluetooth module controller installed on the whole vehicle.
  • the Bluetooth slave module mainly plays the role of auxiliary positioning.
  • the Bluetooth master module achieves the purpose of accurate positioning through the positioning algorithm, which also requires the Bluetooth master module to know.
  • the orientation of each Bluetooth slave module (that is, where it is installed in the vehicle) can make the positioning more accurate.
  • the solution of realizing mixed installation from modules and distinguishing the installation location can be realized by adding a diagnosis and learning process to the electrical inspection equipment program of the production line, but this solution requires the transformation of the production line equipment, which incurs certain transformation costs, and increases the A detection process also has a certain impact on the production takt. Therefore, it has practical needs and significance to develop a solution to distinguish the location of Bluetooth slave modules.
  • the embodiment of the present application provides a vehicle to conveniently and accurately identify the installation position of the Bluetooth slave module.
  • the technical solution is as follows:
  • a method for identifying the installation position of a Bluetooth slave module is provided as follows: a position detection pin is set on the Bluetooth slave module, and when the Bluetooth slave module is installed, the position detection pins of the Bluetooth slave modules in different installation positions are matched with the position detection pin of the Bluetooth slave module.
  • Different level signal pins are connected, so that the level of the position detection pins of different Bluetooth slave modules is different; the Bluetooth slave module sends the level of its own position detection pins to the Bluetooth master module, and the Bluetooth master module Compare the received level of the position detection pin of the Bluetooth slave module with the pre-stored position-level meter, so as to identify the installation location information corresponding to the Bluetooth slave module; The level of the detection pin is compared with the pre-stored position-level meter, so as to identify the installation position corresponding to itself, and the Bluetooth slave module sends its own installation position information to the Bluetooth master module; the position-electrical The level meter is used to indicate the relationship between the installation position of the Bluetooth slave module and the level of the level signal pins of the installation position.
  • the level conditions of the level signal pins include high level and low level; the number of the bluetooth slave modules is M, and the number of the position detection pins of each bluetooth slave module is the same and is N, The N is an integer greater than or equal to 1, the M is an integer greater than 1, and the relationship between M and N is as follows: 2N ⁇ M.
  • the level of the two bluetooth slave module position detection pins is different (high level and low level respectively), so that the two can be distinguished by the level situation of the bluetooth slave module position detection pin The installation location of the Bluetooth slave module.
  • the two position detection pins of the four Bluetooth slave modules are set through the level signal pins respectively.
  • the level combinations of the two position detection pins of each Bluetooth slave module are different, so that the installation positions of the four Bluetooth slave modules can be distinguished by the level combinations of the position detection pins of the Bluetooth slave module. Setting the relationship between M and N as 2N ⁇ M can minimize the number of position detection pins to simplify the connection circuit.
  • the level signal pins include a power supply terminal of the vehicle body power supply and a ground terminal of the vehicle body power supply, respectively corresponding to the high-level signal and the low-level signal.
  • a wire harness connector is provided at the installation position of the Bluetooth slave module, and the wire harness connector is provided with N position docking pins and N position setting pins, and each position docking pin is associated with the corresponding position.
  • the setting pin is connected; the position setting pin of the wire harness connector is connected with the corresponding level signal pin; the position detection pin of the Bluetooth slave module is opposite to the corresponding position docking pin on the corresponding wire harness connector catch.
  • the wiring harness connector can be pre-fixed at the installation position of the Bluetooth slave module, and the position setting pins of the wiring harness connector can be connected to the corresponding level signal pins in advance.
  • the position detection pin of the slave module is connected to the corresponding position docking pin on the corresponding wiring harness connector, so that the level setting of the position detection pin of the Bluetooth slave module can be realized, which is very convenient.
  • the wire harness connector is also provided with interconnected power supply docking pins and power supply signal pins, interconnected ground docking pins and ground signal pins, and interconnected data docking pins and data transmission pins.
  • the power supply pin of the bluetooth slave module is connected with the power docking pin of the wiring harness connector, the grounding pin of the bluetooth slave module is connected with the grounding docking pin of the wiring harness connector, and the data pin of the bluetooth slave module It is connected with the data docking pin of the wiring harness connector, the data pin of the Bluetooth main module is connected with the data transmission pin of the wiring harness connector;
  • the power signal pin of the wiring harness connector is connected with the power supply end of the body power supply , the ground signal pin of the wiring harness connector is connected to the ground terminal of the body power supply.
  • the above-mentioned harness connector is provided with docking pins corresponding to each pin of the Bluetooth slave module. After the Bluetooth slave module is docked with the harness connector, the connection of all pins of the Bluetooth slave module can be realized, which greatly improves the assembly efficiency.
  • the wire harness connector is provided with a plug-in foolproof structure to avoid errors in the docking of the Bluetooth slave module and the wire harness connector.
  • the above-mentioned plug-in foolproof structure has been widely popularized, for example, the utility model patent "electrical connector with foolproof structure and its plug and socket" (application number: 201721710468.5 application date: 2017-12-11), so its specific The structure is not repeated here.
  • the data transmission between the bluetooth master module and the bluetooth slave module follows the LIN (Local Interconnect Network, Local Interconnect Network) protocol.
  • LIN Local Interconnect Network
  • the present invention assigns each Bluetooth slave module the address information corresponding to its installation position by setting the position detection pins on the Bluetooth slave module and connecting the position detection pins with signals of different levels, so that the Bluetooth master module can accurately It can identify the installation position of each Bluetooth slave module, which is very suitable for the identification of the installation position of the Bluetooth slave module when multiple Bluetooth slave modules are mixed in the car.
  • a vehicle in a second aspect, includes a positioning information generating device, a Bluetooth master module, a plurality of Bluetooth slave modules, and a body;
  • the positioning information generating device and the Bluetooth master module are fixed on the body, and the plurality of Bluetooth slave modules are respectively fixed at different installation positions of the body;
  • the positioning information generating device is electrically connected to the plurality of Bluetooth slave modules respectively;
  • the bluetooth slave module is used to obtain the positioning information corresponding to the installation position of the bluetooth slave module generated by the positioning information generating device, and when receiving the broadcast signal sent by the target device, detect the signal of the broadcast signal strength value, sending the signal strength value and the positioning information sent by the positioning information generating device to the bluetooth main module;
  • the bluetooth master module is used to determine the installation position of each bluetooth slave module based on the corresponding relationship between the installation position and the positioning information, as well as the positioning information sent by the each bluetooth slave module, based on the transmission of each bluetooth slave module
  • the signal strength value and the installation location of each Bluetooth slave module determine the location of the target device.
  • the Bluetooth slave module has a first data pin, and the Bluetooth master module has a plurality of second data pins;
  • Each second data pin of the bluetooth master module is respectively electrically connected with the first data pin of a bluetooth slave module.
  • the bluetooth slave module has at least one position detection pin, and the positioning information generating device has a high-level pin and a low-level pin;
  • Each position detection pin of each Bluetooth slave module is electrically connected to a high-level pin or a low-level pin;
  • the positioning information includes at least one character, and the number of bits of the positioning information is the same as the number of the position detection pins of the Bluetooth slave module;
  • the positioning information generating device is used for sending a high-level signal through the high-level pin, and sending a low-level signal through the low-level pin;
  • the Bluetooth slave module is configured to determine the positioning information based on the high-level signal or the low-level signal received by each position detection pin.
  • the number of the Bluetooth slave modules is M
  • the number of the position detection pins of each Bluetooth slave module is N
  • the M is an integer greater than 1
  • the N is an integer greater than or equal to 1, 2 N ⁇ M.
  • the positioning information generating device is a vehicle power supply
  • the high-level pin is a power supply pin of the vehicle power supply
  • the low-level pin is a ground pin of the vehicle power supply.
  • the Bluetooth slave module has a first power pin and a first ground pin
  • the Bluetooth master module has a second power pin and a second ground pin
  • the first power pin of the bluetooth slave module and the second power pin of the bluetooth master module are respectively electrically connected with the power supply pin of the vehicle power supply, and the first ground pin of the bluetooth slave module and the bluetooth The second ground pins of the main module are respectively electrically connected to the ground pins of the vehicle power supply.
  • the data transmission between the bluetooth master module and the bluetooth slave module follows the local interconnection network LIN protocol.
  • the vehicle also includes a plurality of connectors
  • the plurality of connectors are respectively fixed at different installation positions of the vehicle body, the plurality of connectors are respectively electrically connected with the positioning information generating device, and the plurality of connectors are respectively connected with a Bluetooth slave.
  • the modules are plugged and electrically connected.
  • the Bluetooth slave module and the connector have mutually matched plug-and-fool-proof structures.
  • a method for device positioning is provided, the method is applied to a vehicle, and the vehicle includes a positioning information generating device, a Bluetooth master module, a plurality of Bluetooth slave modules, and a vehicle body;
  • the positioning information generating device and the Bluetooth master module are fixed on the body, and the plurality of Bluetooth slave modules are respectively fixed at different installation positions of the body;
  • the positioning information generating device is electrically connected to the plurality of Bluetooth slave modules respectively;
  • the method includes:
  • the Bluetooth slave module obtains the positioning information corresponding to the installation position of the Bluetooth slave module generated by the positioning information generating device;
  • the Bluetooth slave module receives the broadcast signal sent by the target device, detects the signal strength value of the broadcast signal, and sends the signal strength value and the positioning information received from the positioning information generating device to the Bluetooth master module ;
  • the bluetooth master module determines the installation position of each bluetooth slave module based on the corresponding relationship between the installation position and the positioning information, and the positioning information sent by each bluetooth slave module, based on the signal strength sent by each bluetooth slave module value and the installation location of each Bluetooth slave module, determine the location of the target device.
  • the Bluetooth slave module can send the signal strength value and the positioning information received by the Bluetooth slave module to the Bluetooth master module, and the Bluetooth master module can The corresponding relationship between the installation location and the positioning information determines which installation location the Bluetooth slave module is located at, and then calculates the signal strength values detected at different installation locations to determine the location of the target device.
  • the Bluetooth master module can determine the installation position of each Bluetooth slave module based on the positioning information sent by the Bluetooth slave module, without the need to determine the installation position of each Bluetooth slave module through the diagnosis process after the whole vehicle is installed.
  • the identification information of the bluetooth slave module is sent to the bluetooth master module, which reduces the production process and improves the production efficiency.
  • FIG. 1 is a schematic diagram of the electrical connection between a Bluetooth master module and a Bluetooth slave module in Embodiment 1;
  • FIG. 2 is a schematic diagram of the electrical connection of a Bluetooth master module, a Bluetooth slave module, a harness connector and a body power supply in Embodiment 2;
  • FIG. 3 is a schematic structural diagram of a vehicle provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an electrical connection between a Bluetooth master module and a Bluetooth slave module provided by an embodiment of the present application
  • FIG. 5 is a schematic diagram of an electrical connection between a Bluetooth slave module and a positioning information generating device provided by an embodiment of the present application
  • FIG. 6 is a schematic diagram of electrical connection of a Bluetooth master module, a Bluetooth slave module, a connector, and a vehicle power supply provided by an embodiment of the present application;
  • FIG. 7 is a schematic diagram of electrical connection of a Bluetooth master module, a Bluetooth slave module, a connector, and a vehicle power supply provided by an embodiment of the present application;
  • FIG. 8 is a schematic diagram of electrical connection of a Bluetooth master module, a Bluetooth slave module, a connector, and a vehicle power supply provided by an embodiment of the present application;
  • FIG. 9 is a schematic diagram of electrical connection of a Bluetooth master module, a Bluetooth slave module, a connector, and a vehicle power supply provided by an embodiment of the present application;
  • FIG. 10 is a schematic diagram of electrical connection of a Bluetooth master module, a Bluetooth slave module, a connector, and a vehicle power supply provided by an embodiment of the present application.
  • the Bluetooth digital key mainly uses the near field communication technology, so that the user can perform operations such as unlocking and locking the door of the vehicle through a smart phone or a wearable smart device (such as a smart watch, etc.).
  • the Bluetooth digital key system can usually include an application program, a Bluetooth master module and multiple Bluetooth slave modules.
  • the application program can be installed on the terminal device of the car owner, and the car owner has realized the pairing connection with the Bluetooth master module through Bluetooth in the application program.
  • the bluetooth main module and the application program store the mac (Media Access Control, media access control) address of the bluetooth data transmission.
  • the terminal device When the car owner brings the terminal device close to the vehicle and the application program on the terminal device is running, the terminal device will send out a broadcast signal, which contains the eigenvalue information and mac address of the terminal device.
  • the bluetooth main module receives When the broadcast signal is reached, the Bluetooth pairing connection with the terminal device is realized through the mac address carried by the broadcast signal, and then the feature value information carried by the broadcast signal is sent to each Bluetooth slave module.
  • the Bluetooth slave module receives the broadcast signal sent by the terminal device, it determines whether the eigenvalue information it carries is the same as the eigenvalue information sent by the Bluetooth master module. The signal strength value is sent to the Bluetooth master module.
  • each Bluetooth slave module in different installation positions sends the signal strength value detected by itself to the Bluetooth master module, and the Bluetooth master module receives the signal strength value sent by the Bluetooth slave modules in different installation positions, and then based on each Bluetooth slave module. determine the location of the terminal device that sends the broadcast signal, for example, determine whether the terminal device is currently outside the vehicle or inside the vehicle, and whether it is on the left or right side of the vehicle when outside the vehicle side, in front of or behind the vehicle, etc.
  • the Bluetooth main module After the Bluetooth main module determines the location of the owner's terminal device, it can send it to the vehicle's control system.
  • the vehicle's control system can control the vehicle based on the owner's location (that is, the location of the owner's terminal device). deal with.
  • the control process performed by the control system may be: when it is determined that the vehicle owner is outside the vehicle, the engine of the vehicle is prohibited from starting, and when it is determined that the vehicle owner is inside the vehicle, the engine is allowed to start; when it is determined that the vehicle owner is outside the vehicle and some When a certain direction is determined, unlock the door of this direction, and only unlock the doors of other directions after the owner opens the door of this direction, so as to avoid the occurrence of thieves opening other doors when the owner is not paying attention, for example, when the terminal device When the vehicle is at the front left of the vehicle (ie, in the main driving position), only the main driver's door can be unlocked, and the other doors can be unlocked after the vehicle owner has opened the main driver's door, and so on.
  • This embodiment proposes a method for identifying the installation position of the Bluetooth slave module, so as to conveniently and accurately identify the installation position of the Bluetooth slave module.
  • the method for identifying the installation position of the Bluetooth slave module in this embodiment is as follows: set position detection pins on the Bluetooth slave module, and when installing the Bluetooth slave module, compare the position detection pins of the Bluetooth slave modules in different installation positions with different levels
  • the signal pins are connected, so that the level of the position detection pins of different Bluetooth slave modules is different; the Bluetooth slave module sends the level of its own position detection pins to the Bluetooth master module, and the Bluetooth master module will receive the received
  • the level of the position detection pin of the Bluetooth slave module is compared with the pre-stored position-level meter, so as to identify the installation location information corresponding to the Bluetooth slave module; the position-level meter is used to indicate the Bluetooth slave module.
  • the above-mentioned level signal pins include the power supply terminal of the vehicle body power supply and the ground terminal of the vehicle body power supply, respectively corresponding to the high-level signal and the low-level signal.
  • technicians can preset the relationship between the installation positions of multiple Bluetooth slave modules and the level conditions corresponding to the installation positions, that is, the position-level meter, and store the position-level meter in the Bluetooth master module. middle. It can be understood that, in the position-level meter, the levels corresponding to different installation positions are different.
  • One or more location detection pins can be set on the Bluetooth slave module.
  • the level signal pins are connected, so that the level conditions of all the position detection pins of the Bluetooth slave module are the same as the level conditions corresponding to the installation position in the position-level meter.
  • the Bluetooth slave module can send the level of its own position detection pins (that is, the level of the connected level signal pins) to the Bluetooth master module, and the Bluetooth master module will receive the Bluetooth slaves in different installation positions.
  • the level sent by the module is compared with the pre-stored position-level meter to determine the installation position of each Bluetooth slave module.
  • the level signal pins may include high level pins and low level pins.
  • the position detection pins of the Bluetooth slave modules in different installation positions can be connected to the high-level pin or the low-level pin respectively, so that the level of each position detection pin is high. flat or low.
  • each Bluetooth slave module corresponds to one level condition.
  • the level of the position detection pin of the Bluetooth slave module is a string, each bit of the string corresponds to a position detection pin of the Bluetooth slave module, and the value of each bit of the string represents the corresponding position detection pin.
  • pin level eg, high or low.
  • the level of the position detection pins of the Bluetooth slave module can be 110, which means that in the Bluetooth slave module, the first position detection pin and The level signal pins connected to the second position detection pin are all high level pins, and the level signal pins connected to the third position detection pin are low level pins.
  • each Bluetooth slave module is provided with a position detection pin DET (Detection, detection), and the pre-stored position-level meter is shown in the following table.
  • VCC Volt Current Condenser, power supply
  • GND Ground, wire ground terminal
  • Serial number of bluetooth slave module The installation location of the Bluetooth slave module The level of the position detection pin 1 left front door high level 2 right front door low level
  • the first Bluetooth slave module sends the level (high level) of its own position detection pin DET to the Bluetooth master through the data pin DLine (Data Line, data transmission line) (also called LIN) of the Bluetooth slave module.
  • the data pin DLine of the module, the Bluetooth master module compares the received level of the position detection pin of the Bluetooth slave module with the pre-stored position-level meter, thereby identifying the installation position corresponding to the Bluetooth slave module It is the left front door; similarly, the second Bluetooth slave module sends the level (low level) of its own position detection pin DET to the data pin DLine of the Bluetooth master module through the data pin DLine of the Bluetooth slave module.
  • the bluetooth master module compares the received level of the position detection pin of the bluetooth slave module with the pre-stored position-level meter, thereby identifying the installation position corresponding to the bluetooth slave module as the right front door.
  • the data transmission between the Bluetooth master module and the Bluetooth slave module follows the LIN protocol.
  • This embodiment proposes a method for identifying the installation position of the Bluetooth slave module, so as to conveniently and accurately identify the installation position of the Bluetooth slave module.
  • the method for identifying the installation position of the Bluetooth slave module in this embodiment is as follows: set position detection pins on the Bluetooth slave module, and when installing the Bluetooth slave module, compare the position detection pins of the Bluetooth slave modules in different installation positions with different levels
  • the signal pins are connected to make the level of the position detection pins of different Bluetooth slave modules different; the Bluetooth slave module compares the level of its own position detection pins with the pre-stored position-level meter, Thereby, the corresponding installation position of itself is identified, and the Bluetooth slave module sends its own installation position information to the Bluetooth master module; the position-level meter is used to indicate the installation position of the Bluetooth slave module and the level signal lead of the installation position.
  • the relationship between the level of the pin is as follows: set position detection pins on the Bluetooth slave module, and when installing the Bluetooth slave module, compare the position detection pins of the Bluetooth slave modules in different installation positions with different levels
  • the signal pins are connected to make the level of the position detection pins of different Bluetooth slave modules different; the Bluetooth slave module compares the level of its
  • the above-mentioned level signal pins include the power supply terminal of the vehicle body power supply and the ground terminal of the vehicle body power supply, respectively corresponding to the high-level signal and the low-level signal.
  • the installation position of the Bluetooth slave module is provided with a wire harness connector, and the wire harness connector is provided with N position docking pins and N position setting pins, and each position docking pin is respectively connected with the corresponding position setting pin;
  • Each position setting pin of the wiring harness connector is connected with a high-level pin or a low-level pin respectively;
  • the position detection pin of the Bluetooth slave module is connected with the corresponding position docking pin on the corresponding wiring harness connector .
  • a wire harness connector is set at the installation position of each Bluetooth slave module, and the wire harness connector is provided with N position docking pins and N position setting pins, that is, the number of position docking pins , the number of location setting pins are the same as the number of location detection pins on the Bluetooth slave module.
  • N position docking pins and N position setting pins that is, the number of position docking pins , the number of location setting pins are the same as the number of location detection pins on the Bluetooth slave module.
  • each position detection pin of the Bluetooth slave module can be connected to the corresponding position docking pin on the wiring harness connector, so that the level of the position detection pin of the Bluetooth slave module is the same as the level of the position detection pin of the Bluetooth slave module.
  • the wiring harness connector at the installation position has the same level of butt pins, that is, the same level as the installation position.
  • each Bluetooth slave module is provided with two position detection pins DET1 and DET2.
  • the two position detection pins DET1 and DET2 of the four Bluetooth slave modules pass through the level respectively.
  • the signal pins are set to the following four situations: 1, high level and high level (as shown in Figure 2); 2, high level and low level; 3, low level and high level; 4, low level and low level.
  • the level combinations of the two position detection pins of each Bluetooth slave module are different, so that the installation positions of the four Bluetooth slave modules can be distinguished by the level combinations of the position detection pins of the Bluetooth slave module.
  • a wire harness connector is provided at the installation position of the Bluetooth slave module.
  • the wire harness connector is provided with two position docking pins and two position setting pins, and each position docking pin is matched with the corresponding one.
  • the position setting pin is connected; the position setting pin of the wire harness connector is connected with the corresponding level signal pin; the position detection pin of the Bluetooth slave module is connected with the corresponding position docking pin on the corresponding wire harness connector relative.
  • the wire harness connector is also provided with interconnected power supply docking pins and power supply signal pins, interconnected ground docking pins and ground signal pins, and interconnected data docking pins and data transmission pins;
  • the power supply pin VCC of the Bluetooth slave module is connected with the power docking pin of the wiring harness connector
  • the ground pin GND of the Bluetooth slave module is connected with the grounding docking pin of the wiring harness connector
  • the data pin of the Bluetooth slave module DLine is connected with the data docking pin of the wiring harness connector
  • the data pin DLine of the Bluetooth main module is connected with the data transmission pin of the wiring harness connector
  • the power signal pin of the wiring harness connector, the power supply of the Bluetooth main module The pins are respectively connected with the power supply terminals of the body power supply
  • the grounding signal pins of the wire harness connector and the grounding pins of the Bluetooth main module are respectively connected with the grounding terminals of the vehicle body power supply.
  • the wiring harness connector can be pre-fixed at the installation position of the Bluetooth slave module, and the position setting pins DET1 and DET2 of the wiring harness connector can be pre-aligned with the corresponding level signal pins (power or ground of the body power supply).
  • Connect connect the data pin DLine of the bluetooth main module with the data transmission pin of the wiring harness connector; connect the power signal pin VCC of the wiring harness connector with the power supply end of the body power supply, connect the wiring harness connector
  • the ground signal pin GND is connected to the ground terminal of the body power supply.
  • the harness connector is provided with docking pins corresponding to the respective pins of the Bluetooth slave module, when installing the Bluetooth slave module, it is only necessary to connect the Bluetooth slave module with the harness connector to realize the connection of the Bluetooth slave module.
  • the connection of all pins greatly improves the assembly efficiency.
  • the first Bluetooth slave module (that is, the Bluetooth slave module in Figure 2) compares the level of its own position detection pin (11) with the pre-stored position-level meter, thereby identifying its corresponding The installation position is the left front door, and the Bluetooth slave module sends its own installation position information (A) to the Bluetooth master module through the data pin DLine;
  • the second Bluetooth slave module compares the level of its own position detection pin (10) with the pre-stored position-level meter, thereby identifying that the installation position corresponding to itself is the right front door, and the Bluetooth slave module will Its own installation location information (B) is sent to the Bluetooth main module through the data pin DLine;
  • the third Bluetooth slave module compares the level of its position detection pin (01) with the pre-stored position-level meter, thereby identifying the installation position corresponding to itself as the left rear door, and the Bluetooth slave module will Its own installation location information (C) is sent to the Bluetooth main module through the data pin DLine;
  • the fourth Bluetooth slave module compares the level of its position detection pin (00) with the pre-stored position-level meter, thereby identifying the installation position corresponding to itself as the right rear door, and the Bluetooth slave module will Its own installation location information (D) is sent to the Bluetooth main module through the data pin DLine;
  • the data transmission between the Bluetooth master module and the Bluetooth slave module follows the LIN protocol.
  • the vehicle includes a positioning information generating device, a Bluetooth master module, a plurality of Bluetooth slave modules, and a body.
  • the positioning information generating device and the Bluetooth master module are fixed on the body, and the plurality of Bluetooth slave modules are respectively fixed at different installation positions of the body.
  • the positioning information generating device is electrically connected with the plurality of Bluetooth slave modules respectively.
  • the technician can determine the number of Bluetooth slave modules to be set in the vehicle according to the desired final accuracy and cost of the target device location.
  • the number of Bluetooth slave modules can be arbitrary.
  • the technician can also preset the installation positions of multiple Bluetooth slave modules, and set the positioning information corresponding to each of these installation positions (the positioning information here is equivalent to the level situation in the above). For example, if the number of Bluetooth slave modules set in the vehicle is 4, the installation positions of the Bluetooth slave modules can be set to be the left front door, the right front door, the left rear door and the right rear door. Each installation position is set to one identifiable location information.
  • Bluetooth slave modules are respectively fixed at pre-set installation positions, and a Bluetooth slave module is set at each installation position.
  • the specific fixed position of the Bluetooth slave module can be any reasonable position on the vehicle body, which is implemented in this application.
  • the Bluetooth slave module can be set on the door handle of the car door.
  • the function of the Bluetooth slave module is: to obtain the positioning information corresponding to the installation position of the Bluetooth slave module generated by the positioning information generating device, and to detect the broadcast signal when receiving the broadcast signal sent by the target device.
  • the signal strength value of the device sends the signal strength value and the positioning information sent by the positioning information generating device to the Bluetooth main module.
  • the target device is the terminal device of the owner of the vehicle.
  • each Bluetooth slave module is electrically connected to the positioning information generating device, respectively, and the Bluetooth slave module can acquire the positioning information corresponding to its installation position sent by the positioning information generating device.
  • the Bluetooth slave module can receive the broadcast signal sent by the target device, and detect the signal strength value of the received broadcast signal (also known as the RSSI value), then, the detected signal strength The value and the positioning information sent by the positioning information generating device are sent to the Bluetooth main module together.
  • the signal generating device may be fixedly disposed at any suitable position of the vehicle body, which is not limited in this embodiment of the present application.
  • the positioning information generating device is used for sending positioning information corresponding to the installation position of the Bluetooth slave module to each Bluetooth slave module.
  • each Bluetooth slave module is electrically connected to the positioning information generating device respectively.
  • the positioning information generating means may have a number of different pins. For other components that are electrically connected to the positioning information generating device, the pins connected to them are different, so that these components can receive different positioning information sent by the positioning information generating device.
  • technicians can set the line connecting the positioning information generating device and each Bluetooth slave module based on the pre-set corresponding relationship between the installation position and the positioning information, so that the positioning information generating device
  • the positioning information sent to each Bluetooth slave module is different, and the positioning information sent to the Bluetooth slave module corresponds to the installation position of the Bluetooth slave module, that is, it satisfies the preset corresponding relationship between the installation position and the positioning information.
  • the bluetooth main module can be fixedly connected to any suitable position of the vehicle body, for example, it can be arranged in the inner cavity of the vehicle body or the like.
  • the bluetooth master module is used to determine the installation position of each bluetooth slave module based on the corresponding relationship between the installation position and the positioning information and the positioning information sent by each bluetooth slave module, based on the signal strength value sent by each bluetooth slave module and each bluetooth slave module.
  • the installation location of each Bluetooth slave module determines the location of the target device.
  • the Bluetooth master module can determine each Bluetooth slave module based on the corresponding relationship between the installation position and positioning information pre-stored in the Bluetooth master module installation location. Then, the position of the target device can be calculated based on the installation position of each Bluetooth slave module and the signal strength value sent from it, as well as the positioning algorithm.
  • the positioning algorithm may be any reasonable algorithm, which is not limited in this embodiment of the present application.
  • the Bluetooth main module can send it to the control system of the vehicle, and the control system can perform corresponding control processing on the vehicle based on the location of the target device.
  • the Bluetooth main module may also detect the corresponding signal strength value when acquiring the broadcast signal sent by the target device.
  • the installation position of each Bluetooth slave module can be determined based on the positioning information, and then based on the installation position of each Bluetooth slave module, each Bluetooth slave module sends The location of the target device is calculated based on the received signal strength value, the pre-stored installation position of the Bluetooth main module, the signal strength value detected by the Bluetooth main module itself, and the positioning algorithm.
  • the data transmission between the bluetooth master module and multiple bluetooth slave modules can be either bluetooth communication or wired communication.
  • wired communication can be realized by setting data pins. Communication, as shown in Figure 4, the corresponding settings can be: the Bluetooth slave module has a first data pin (the first data pin here is equivalent to the data pin of the above-mentioned Bluetooth slave module), and the Bluetooth master module has A plurality of second data pins (the second data pins here are equivalent to the data pins of the above-mentioned Bluetooth master module).
  • Each second data pin of the bluetooth master module is electrically connected to the first data pin of a bluetooth slave module respectively.
  • data transmission may be implemented between the Bluetooth slave module and the Bluetooth master module through the first data pin and the second data pin that are electrically connected to each other.
  • both the first data pin and the second data pin may be LIN pins, and the data transmission between the Bluetooth master module and the Bluetooth slave module follows the local interconnection network LIN protocol.
  • the bluetooth slave module and the positioning information generating device can be electrically connected through pins, as shown in FIG. 5 , which will be described in detail below.
  • the Bluetooth slave module has at least one position detection pin, and the positioning information generating device has a high-level pin and a low-level pin. Each position detection pin of each Bluetooth slave module is electrically connected to a high-level pin or a low-level pin, respectively.
  • each position detection pin of the Bluetooth slave module is electrically connected to a high-level pin or a low-level pin of the positioning information generating device, respectively. All pins can receive a level signal sent from the positioning information generating device. If a position detection pin is electrically connected to the high-level pin of the positioning information generating device, the level of the position detection pin can be If it is 1, if a position detection pin is electrically connected to the low level pin of the positioning information generating device, the level condition of the position detection pin can be 0.
  • positioning information corresponding to a Bluetooth slave module can be obtained, that is, the positioning information includes at least one character, and the number of bits of the positioning information is the same as the number of the position detection pins of the Bluetooth slave module.
  • the positioning information generating device is used for sending a high-level signal through a high-level pin, and sending a low-level signal through a low-level pin.
  • the Bluetooth slave module is used to determine the positioning information based on the high-level signal or the low-level signal received by each position detection pin.
  • the characters included in the positioning information are the level of the position detection pins.
  • the positioning information of the Bluetooth slave module is the level of the position detection pin of the Bluetooth slave module, that is, 0 or 1.
  • the positioning information of the Bluetooth slave module is the level condition of all the position detection pins of the Bluetooth slave module, which is a string arranged in a preset order.
  • the Bluetooth slave module has three position detection pins, the first position detection pin and the third position detection pin are electrically connected with the high level pin, and the second position detection pin is connected with the low level pin. If the pins are electrically connected, the positioning information of the Bluetooth slave module is 101.
  • each Bluetooth slave module has two position detection pins, and each position detection pin of each Bluetooth slave module is respectively connected with a high level pin or a low level pin.
  • the level pins are electrically connected so that the positioning information of the four Bluetooth slave modules is 11, 10, 01 and 00 respectively.
  • the number of position detection pins set on each Bluetooth slave module is related to the number of Bluetooth slave modules. If the number of Bluetooth slave modules is M, and the number of position detection pins of each Bluetooth slave module is N, then M is greater than An integer of 1, N is an integer greater than or equal to 1, and the relationship between M and N can be: 2 N ⁇ M. For example, when two bluetooth slave modules with different installation positions need to be set, the number of position detection pins on each bluetooth slave module is at least 1, and when four bluetooth slave modules with different installation positions need to be set, each The minimum number of location detection pins on each Bluetooth slave module is 2.
  • the signal generating device may be a separate device, or may be a device provided by the vehicle itself.
  • the positioning information generating device may be a vehicle power supply (the vehicle power supply here is equivalent to the above-mentioned body power supply), and the positioning information generating device has a high level.
  • the level pin can be the power supply pin of the vehicle power supply (the power supply pin here is equivalent to the above-mentioned power supply pin), and the low level pin of the positioning information generating device can be the grounding pin of the vehicle power supply (here the power supply pin is equivalent to the above-mentioned power supply pin).
  • the grounding pin is equivalent to the above-mentioned grounding pin).
  • the Bluetooth slave module and the Bluetooth master module also need to be connected to the vehicle power supply to ensure power supply, and connected to the ground pin to enhance the security of the electrical connection.
  • the corresponding settings can be as follows.
  • the Bluetooth slave module has a first power pin (the first power pin here is equivalent to the power supply pin of the above-mentioned Bluetooth slave module) and a first ground pin (the first ground pin here is equivalent to the above-mentioned Bluetooth
  • the ground pin of the slave module the Bluetooth master module has a second power supply pin (the second power supply pin here is equivalent to the power supply pin of the above-mentioned Bluetooth master module) and a second ground pin (the second power supply pin here
  • the ground pin is equivalent to the ground pin of the above-mentioned Bluetooth master module).
  • the first power pin of the bluetooth slave module and the second power pin of the bluetooth master module are respectively electrically connected with the power supply pin of the vehicle power supply, and the first ground pin of the bluetooth slave module and the second ground pin of the bluetooth master module They are respectively electrically connected to the ground pins of the vehicle power supply.
  • the vehicle in the embodiment of the present application may further be provided with multiple connectors, and the corresponding processing may be: the vehicle further includes multiple connectors.
  • the plurality of connectors are respectively fixed at different installation positions of the vehicle body, the plurality of connectors are respectively electrically connected with the positioning information generating device, and the plurality of connectors are respectively plugged and electrically connected to a bluetooth slave module.
  • a connector may be set at each preset installation position of the vehicle, and multiple connectors are respectively electrically connected to the positioning information generating device, and then multiple connectors are connected to each other.
  • the Bluetooth slave modules are respectively plugged and electrically connected with a connector, so that the Bluetooth slave module can be electrically connected with the positioning information generating device through the connector.
  • a plug-in foolproof structure that matches each other can also be provided.
  • the connector can also be set with different pins corresponding to the Bluetooth slave module,
  • the positioning information generating device and the bluetooth main module are electrically connected, and the corresponding settings can be as follows:
  • the connector has at least one position docking pin, at least one position setting pin, power supply signal pin, power supply docking pin, ground signal pin, ground docking pin, data transmission pin and data docking pin.
  • the number of position docking pins is the same as the number of position setting pins, and it is also the same as the number of position detection pins set by the Bluetooth slave module, and each position docking pin is respectively associated with a position setting pin.
  • the pins are electrically connected, the power signal pins are electrically connected with the power connection pins, the ground signal pins are electrically connected with the ground connection pins, and the data transmission pins are electrically connected with the data connection pins.
  • the corresponding setting for realizing the information transmission between the Bluetooth slave module and the positioning information generating device through the connector may be: taking the connector and the Bluetooth slave module set on one installation position as an example, each position of the connector is connected to each other.
  • the pins are respectively electrically connected with a position detection pin of the Bluetooth slave module, and each position setting pin of the connector is electrically connected with the high-level pin or the low-level pin of the positioning information generating device, so that the
  • the positioning information generating device can be installed through electrical connection between level pins (high level pins and/or low level pins), position setting pins, position docking pins and position detection pins.
  • the positioning information corresponding to the location is sent to the Bluetooth slave module.
  • the corresponding settings for realizing the power supply and grounding requirements of the Bluetooth slave module through the connector may be: the power docking pin of the connector is electrically connected to the first power pin of the Bluetooth slave module, and the power signal of the connector leads
  • the pin is electrically connected with the power supply pin of the vehicle power supply, and the power supply requirement of the Bluetooth slave module can be realized through the electrical connection between the power supply pin, the power supply signal pin, the power supply docking pin and the first power supply pin.
  • the grounding docking pin of the connector is electrically connected to the first grounding pin of the Bluetooth slave module, and the grounding signal pin of the connector is electrically connected to the grounding pin of the vehicle power supply.
  • the electrical connection between the pin, the ground docking pin and the first ground pin realizes the grounding requirement of the Bluetooth slave module.
  • the corresponding settings for realizing data transmission between the Bluetooth slave module and the Bluetooth master module through the connector may be: the data docking pin of the connector is electrically connected to the first data pin of the Bluetooth slave module, and the The data transmission pin is electrically connected to a second data pin of the bluetooth main module, which can be achieved through the electrical connection between the first data pin, the data docking pin, the data transmission pin and the second data pin. Data transfer between the Bluetooth slave module and the Bluetooth master module.
  • each Bluetooth slave module has two position detection pins (ie DET1 and DET2), a first power pin (ie VCC), a first ground pin (ie GND) and A first data pin (ie LIN), for the convenience of observation, the position docking pin and position setting pin of the connector are also represented by DET1 and DET2, the power signal pin of the connector and the power docking pin,
  • the second power pin of the bluetooth main module and the power supply pin of the vehicle power supply are also represented by LIN, the ground signal pin and ground docking pin of the connector, the second ground pin of the bluetooth main module, the grounding of the vehicle power supply
  • the pins are also represented by GND, the data transmission pins and data docking pins of the connector, and the second data pins of the Bluetooth master module are also represented by LIN1, LIN2, LIN3, and LIN4, respectively.
  • the left front door is denoted by A
  • the right front door is denoted by B
  • the left rear door is denoted by C
  • the right rear door is denoted by D.
  • FIG. 6 it is a schematic diagram of the electrical connection between the Bluetooth slave module, the connector, the Bluetooth master module and the vehicle power supply at the installation position at the left front door.
  • the DET1 and DET2 pins of the Bluetooth slave module (A) are both connected to The VCC of the vehicle power supply is electrically connected, so the positioning information sent by the vehicle power supply to the Bluetooth slave module (A) is 11.
  • FIG. 7 it is a schematic diagram of the electrical connection between the Bluetooth slave module, the connector, the Bluetooth master module and the vehicle power supply at the installation position at the right front door.
  • the DET1 of the Bluetooth slave module (B) is electrically connected to the VCC of the vehicle power supply.
  • DET2 is electrically connected to the GND of the vehicle power supply, so the positioning information sent by the vehicle power supply to the Bluetooth slave module (B) is 10.
  • FIG. 8 it is a schematic diagram of the electrical connection between the Bluetooth slave module, the connector, the Bluetooth master module and the vehicle power supply at the installation position at the left rear door.
  • DET1 of the Bluetooth slave module (C) is electrically connected to the GND of the vehicle power supply.
  • DET2 is electrically connected to the VCC of the vehicle power supply, so the positioning information sent by the vehicle power supply to the Bluetooth slave module (C) is 01.
  • FIG. 9 it is a schematic diagram of the electrical connection between the Bluetooth slave module, the connector, the Bluetooth master module and the vehicle power supply at the installation position at the right rear door.
  • the DET1 and DET2 pins of the Bluetooth slave module (D) are both connected to The GND of the vehicle power supply is electrically connected, so the positioning information sent by the vehicle power supply to the Bluetooth slave module (D) is 00.
  • FIG. 10 it is a schematic diagram of electrical connection between the above-mentioned four Bluetooth slave modules, four connectors, a Bluetooth master module and a vehicle power supply.
  • the Bluetooth master module When the Bluetooth master module receives the signal strength values and positioning information sent by the four Bluetooth slave modules, it determines each Bluetooth slave module based on the correspondence between the positioning information and the installation location, and the positioning information sent by each Bluetooth slave module. The installation position of the module, and then calculate the position of the target device based on the installation position and signal strength value of each Bluetooth slave module.
  • the embodiment of the present application uses a device positioning method, and the method is applied to a vehicle.
  • the vehicle includes a positioning information generating device, a Bluetooth master module, a plurality of Bluetooth slave modules, and a vehicle body.
  • the positioning information generating device and the bluetooth master module are fixed on the vehicle body, and a plurality of bluetooth slave modules are respectively fixed at different installation positions of the vehicle body.
  • the positioning information generating device is electrically connected with the plurality of Bluetooth slave modules respectively.
  • the method of device positioning includes the following steps:
  • the Bluetooth slave module acquires the positioning information corresponding to the installation position of the Bluetooth slave module and generated by the positioning information generating device.
  • the Bluetooth slave module receives the broadcast signal sent by the target device, detects the signal strength value of the broadcast signal, and sends the signal strength value and the positioning information sent by the positioning information generating device to the Bluetooth master module.
  • the Bluetooth master module determines the installation position of each Bluetooth slave module based on the corresponding relationship between the installation position and the positioning information, as well as the positioning information sent by each Bluetooth slave module, based on the signal strength value sent by each Bluetooth slave module and each Bluetooth slave module.
  • the installation location of the module determines the location of the target device.
  • the positioning information generating apparatus may send positioning information corresponding to the installation position of the Bluetooth slave module to each Bluetooth slave module.
  • the Bluetooth main module can achieve Bluetooth pairing and connection with the target device, and then the target device will send out a broadcast signal, which carries the feature value information of the target device, and the Bluetooth main module receives the broadcast signal. After the signal is received, the characteristic value information can be sent to each Bluetooth slave module.
  • the Bluetooth slave module After the Bluetooth slave module receives the broadcast signal, it compares the eigenvalue information carried in the broadcast signal with the eigenvalue information sent by the Bluetooth master module. If they are the same, it means that the broadcast signal comes from the target device.
  • the signal strength value of the broadcast signal and the positioning information sent by the positioning information generating device are sent to the bluetooth main module.
  • the Bluetooth master module After receiving the signal strength value and positioning information sent by each Bluetooth slave module, the Bluetooth master module can determine each Bluetooth module based on the corresponding relationship between the pre-stored installation position and positioning information, as well as the positioning information sent by each Bluetooth slave module. The installation location of each Bluetooth slave module. Then, based on the installation position of each Bluetooth slave module, the signal strength value sent by each Bluetooth slave module, and the positioning algorithm, the position of the target device is determined.
  • the Bluetooth main module can also detect the signal strength value of the broadcast signal sent by the target device.
  • the Bluetooth master module After receiving the signal strength value and positioning information sent by each Bluetooth slave module, the Bluetooth master module first determines the installation position of each Bluetooth slave module, and then can determine the installation position of each Bluetooth slave module based on the installation position of each Bluetooth slave module and each Bluetooth slave module.
  • the sent signal strength value, the pre-stored installation position of the Bluetooth main module, the signal strength value detected by the Bluetooth main module and the positioning algorithm determine the location of the target device.
  • the Bluetooth slave module can send the signal strength value and the positioning information received by the Bluetooth slave module to the Bluetooth master module, and the Bluetooth master module can The corresponding relationship between the installation location and the positioning information determines which installation location the Bluetooth slave module is located at, and then calculates the signal strength values detected at different installation locations to determine the location of the target device.
  • the Bluetooth master module can determine the installation position of each Bluetooth slave module based on the positioning information sent by the Bluetooth slave module, without the need to determine the installation position of each Bluetooth slave module through the diagnosis process after the whole vehicle is installed.
  • the identification information of the bluetooth slave module is sent to the bluetooth master module, which reduces the production process and improves the production efficiency.

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Abstract

本发明提出了一种识别蓝牙从模块安装位置的方法，以方便准确地识别蓝牙从模块的安装位置。该方法如下：在蓝牙从模块上设置位置检测引脚，在安装蓝牙从模块时，将不同安装位置的蓝牙从模块的位置检测引脚与不同的电平信号引脚相接，以使不同蓝牙从模块的位置检测引脚的电平情况不同，从而为每个蓝牙从模块赋予对应其安装位置的地址信息；蓝牙主模块或蓝牙从模块将蓝牙从模块的位置检测引脚的电平情况与预先存储的位置-电平表进行比对，识别出蓝牙从模块所对应的安装位置信息；所述位置-电平表用于表示蓝牙从模块的安装位置与该安装位置的电平信号引脚的电平情况的关系。本发明适用于汽车中多个蓝牙从模块混装时蓝牙从模块的安装位置的识别。

Description

车辆和设备定位的方法
本申请要求于2020年10月14日提交的申请号为202011099321.3、发明名称为“一种识别蓝牙从模块安装位置的方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及汽车电子系统应用领域，特别涉及一种车辆和设备定位的方法。
背景技术
随着智能网联汽车技术的发展，尤其是蓝牙数字钥匙技术的推广与应用，提供给车主的便利性、科技感也越来越突出。蓝牙钥匙的硬件部分主要是安装在整车上的蓝牙模块控制器，为了达到精准定位的目的，各大车厂大多采用一个蓝牙主模块加多个蓝牙从模块的方案。蓝牙从模块主要起辅助定位作用，通过将车上不同方位的无线信号强度RSSI值传递给蓝牙主模块，蓝牙主模块再通过定位算法来达到准确定位的目的，这也就要求蓝牙主模块需要知晓各个蓝牙从模块的方位(即安装在车辆的什么位置)，才能使得定位更准确。
目前，实现从模块混装且又能区分安装位置的方案可以通过在生产线电检设备程序增加一道诊断学习工序来实现，但此种方案需要对产线设备进行改造，产生一定改造费用，而且增加一道检测工序对生产节拍也造成一定影响。因此，开发一种解决蓝牙从模块混装后区分位置的方案有着实际的需求和意义。
发明内容
本申请实施例提供了一种车辆，以方便准确地识别蓝牙从模块的安装位置。所述技术方案如下：
第一方面，提供了一种识别蓝牙从模块安装位置的方法如下：在蓝牙从模块上设置位置检测引脚，在安装蓝牙从模块时，将不同安装位置的蓝牙从模块的位置检测引脚与不同的电平信号引脚相接，以使不同蓝牙从模块的位置检测引脚的电平情况不同；蓝牙从模块将自身的位置检测引脚的电平情况发送至蓝牙主模块，蓝牙主模块将接收到的蓝牙从模块的位置检测引脚的电平情况与预先存 储的位置-电平表进行比对，从而识别出蓝牙从模块所对应的安装位置信息；或者蓝牙从模块将自身的位置检测引脚的电平情况与预先存储的位置-电平表进行比对，从而识别出自身所对应的安装位置，蓝牙从模块将自身的安装位置信息发送至蓝牙主模块；所述位置-电平表用于表示蓝牙从模块的安装位置与该安装位置的电平信号引脚的电平情况的关系。
进一步地，所述电平信号引脚的电平情况包括高电平和低电平；所述蓝牙从模块的数量为M，每个蓝牙从模块的位置检测引脚的数量均相同且为N，所述N为大于或等于1的整数，所述M为大于1的整数，M与N的关系如下：2N≥M。例如说，当蓝牙从模块有两个时，只需要在每个蓝牙从模块上设置一个位置检测引脚，两个蓝牙从模块的位置检测引脚分别通过电平信号引脚设置为高电平和低电平，两个蓝牙从模块的位置检测引脚的电平情况不同(分别为高电平和低电平)，这样就可以通过蓝牙从模块的位置检测引脚的电平情况区分开两个蓝牙从模块的安装位置。又例如说，当蓝牙从模块有四个时，只需要在每个蓝牙从模块上设置两个位置检测引脚，四个蓝牙从模块的两个位置检测引脚分别通过电平信号引脚设置为下述四种情况：1、高电平和高电平；2、高电平和低电平；3、低电平和高电平；4、低电平和低电平。每个蓝牙从模块的两个位置检测引脚的电平组合情况均不同，这样就可以通过蓝牙从模块的位置检测引脚的电平组合情况区分开四个蓝牙从模块的安装位置。将M与N的关系设置为2N≥M，可以尽量减少位置检测引脚的数量，以简化连接电路。
进一步地，所述电平信号引脚包括车身电源的电源端和车身电源的接地端，以分别对应高电平信号和低电平信号。
进一步地，蓝牙从模块的安装位置处设有线束接插器，所述线束接插器设有N个位置对接引脚和N个位置设置引脚，每个位置对接引脚均与对应的位置设置引脚连接；线束接插器的位置设置引脚与对应的电平信号引脚相接；所述蓝牙从模块的位置检测引脚与对应的线束接插器上对应的位置对接引脚相对接。线束接插器可以预先固定在蓝牙从模块的安装位置处，并预先将线束接插器的位置设置引脚与对应的电平信号引脚相接，在安装蓝牙从模块时，只需要将蓝牙从模块的位置检测引脚与对应的线束接插器上对应的位置对接引脚相对接，即可实现蓝牙从模块的位置检测引脚的电平设置，非常方便。
进一步地，所述线束接插器还设有相互连接的电源对接引脚与电源信号引脚，相互连接的接地对接引脚与接地信号引脚，相互连接的数据对接引脚与数据 传输引脚；所述蓝牙从模块的电源引脚与线束接插器的电源对接引脚相对接，蓝牙从模块的接地引脚与线束接插器的接地对接引脚相对接，蓝牙从模块的数据引脚与线束接插器的数据对接引脚相对接，蓝牙主模块的数据引脚与线束接插器的数据传输引脚相接；线束接插器的电源信号引脚与车身电源的电源端相接，线束接插器的接地信号引脚与车身电源的接地端相接。上述线束接插器设置了与蓝牙从模块的各个引脚相对应的对接引脚，在将蓝牙从模块与线束接插器对接后，即可实现蓝牙从模块的所有引脚的连接，大大提高了装配效率。
进一步地，所述线束接插器设有接插防呆结构，以避免蓝牙从模块与线束接插器的对接出现错误。上述接插防呆结构已经广为普及，例如说实用新型专利“具防呆结构的电连接器及其插头与插座”(申请号：201721710468.5申请日：2017-12-11)，因此对其具体结构不再赘述。
具体来说，所述蓝牙主模块与蓝牙从模块的数据传输遵循LIN(Local Interconnect Network，局部互联网络)协议。
本申请实施例提供的技术方案带来的有益效果至少包括：
本发明通过在蓝牙从模块上设置位置检测引脚以及将位置检测引脚与不同电平信号连接的方法，为每个蓝牙从模块赋予对应其安装位置的地址信息，以使蓝牙主模块能够准确地识别出各个蓝牙从模块的安装位置，非常适合于汽车中多个蓝牙从模块混装时蓝牙从模块的安装位置的识别。
第二方面，提供了一种车辆，所述车辆包括定位信息发生装置、蓝牙主模块、多个蓝牙从模块和车身；
所述定位信息发生装置和所述蓝牙主模块固定在所述车身上，所述多个蓝牙从模块分别固定在所述车身的不同安装位置处；
所述定位信息发生装置分别与所述多个蓝牙从模块电性连接；
所述蓝牙从模块，用于获取所述定位信息发生装置产生的与所述蓝牙从模块的安装位置相对应的定位信息，当接收到目标设备发送的广播信号时，检测所述广播信号的信号强度值，向所述蓝牙主模块发送所述信号强度值和所述定位信息发生装置发送的定位信息；
所述蓝牙主模块，用于基于安装位置和定位信息的对应关系，以及所述每个蓝牙从模块发送的定位信息，确定所述每个蓝牙从模块的安装位置，基于每个蓝 牙从模块发送的信号强度值和每个蓝牙从模块的安装位置，确定所述目标设备的位置。
进一步地，所述蓝牙从模块具有一个第一数据引脚，所述蓝牙主模块具有多个第二数据引脚；
所述蓝牙主模块的每个第二数据引脚分别与一个蓝牙从模块的第一数据引脚电性连接。
进一步地，所述蓝牙从模块具有至少一个位置检测引脚，所述定位信息发生装置具有高电平引脚和低电平引脚；
每个蓝牙从模块的每个位置检测引脚分别与高电平引脚或低电平引脚电性连接；
所述定位信息包括至少一位字符，所述定位信息的位数与所述蓝牙从模块的位置检测引脚的数目相同；
所述定位信息发生装置，用于通过所述高电平引脚发送高电平信号，通过所述低电平引脚发送低电平信号；
所述蓝牙从模块，用于基于所述每个位置检测引脚接收到的高电平信号或低电平信号，确定所述定位信息。
进一步地，所述蓝牙从模块的数量是M，所述每个蓝牙从模块的位置检测引脚的数量是N，所述M是大于1的整数，所述N是大于或等于1的整数，2 N≥M。
进一步地，所述定位信息发生装置是车辆电源，所述高电平引脚是所述车辆电源的电源引脚，所述低电平引脚是所述车辆电源的接地引脚。
进一步地，所述蓝牙从模块具有第一电源引脚和第一接地引脚，所述蓝牙主模块具有第二电源引脚和第二接地引脚；
所述蓝牙从模块的第一电源引脚和所述蓝牙主模块的第二电源引脚分别与车辆电源的电源引脚电性连接，所述蓝牙从模块的第一接地引脚和所述蓝牙主模块的第二接地引脚分别与所述车辆电源的接地引脚电性连接。
进一步地，所述蓝牙主模块与蓝牙从模块的数据传输遵循局部互联网络LIN协议。
进一步地，所述车辆还包括多个接插器；
所述多个接插器分别固定在所述车身的不同安装位置处，所述多个接插器分别与所述定位信息发生装置电性连接，所述多个接插器分别与一个蓝牙从模 块插接且电性连接。
进一步地，所述蓝牙从模块和所述接插器具有相互匹配的插接防呆结构。
第三方面，提供了一种设备定位的方法，所述方法应用于车辆，所述车辆包括定位信息发生装置、蓝牙主模块、多个蓝牙从模块和车身；
所述定位信息发生装置和所述蓝牙主模块固定在所述车身上，所述多个蓝牙从模块分别固定在所述车身的不同安装位置处；
所述定位信息发生装置分别与所述多个蓝牙从模块电性连接；
所述方法包括：
所述蓝牙从模块获取定位信息发生装置产生的与所述蓝牙从模块的安装位置相对应的定位信息；
所述蓝牙从模块接收所述目标设备发送的广播信号，并检测所述广播信号的信号强度值，向所述蓝牙主模块发送所述信号强度值和接收自所述定位信息发生装置的定位信息；
所述蓝牙主模块基于安装位置和定位信息的对应关系，以及所述每个蓝牙从模块发送的定位信息，确定所述每个蓝牙从模块的安装位置，基于每个蓝牙从模块发送的信号强度值和每个蓝牙从模块的安装位置，确定所述目标设备的位置。
本申请实施例提供的技术方案带来的有益效果是：蓝牙从模块可以向蓝牙主模块发送信号强度值和蓝牙从模块接收到的定位信息，蓝牙主模块可以基于该定位信息，以及预先存储的安装位置和定位信息的对应关系，确定出该蓝牙从模块位于哪一个安装位置处，再对不同安装位置处检测到的信号强度值进行计算，从而确定出目标设备的位置。采用本申请，蓝牙主模块可以基于蓝牙从模块发送来的定位信息，确定出每个蓝牙从模块的安装位置，而无需在整车安装后，再通过诊断工序确定出每个不同安装位置处的蓝牙从模块的标识信息并将其发送至蓝牙主模块，减少了生产工序，提高了生产效率。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的 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是实施例1中蓝牙主模块与蓝牙从模块的电性连接示意图；
图2是实施例2中蓝牙主模块、蓝牙从模块、线束接插器和车身电源的电性连接示意图；
图3是本申请实施例提供的车辆的结构示意图；
图4是本申请实施例提供的蓝牙主模块与蓝牙从模块的电性连接示意图；
图5是本申请实施例提供的蓝牙从模块与定位信息发生装置的电性连接示意图；
图6是本申请实施例提供的蓝牙主模块、蓝牙从模块、接插器和车辆电源的电性连接示意图；
图7是本申请实施例提供的蓝牙主模块、蓝牙从模块、接插器和车辆电源的电性连接示意图；
图8是本申请实施例提供的蓝牙主模块、蓝牙从模块、接插器和车辆电源的电性连接示意图；
图9是本申请实施例提供的蓝牙主模块、蓝牙从模块、接插器和车辆电源的电性连接示意图；
图10是本申请实施例提供的蓝牙主模块、蓝牙从模块、接插器和车辆电源的电性连接示意图。
具体实施方式
下面对照附图，通过对实施实例的描述，对本发明的具体实施方式如所涉及的各构件的形状、构造、各部分之间的相互位置及连接关系、各部分的作用及工作原理等作进一步的详细说明。
蓝牙数字钥匙主要是通过近场通信技术，使得用户可以通过智能手机或者可穿戴智能设备(例如智能手表等)来进行车辆的车门的开锁和闭锁等操作。
蓝牙数字钥匙系统通常可以包括应用程序、蓝牙主模块和多个蓝牙从模块，应用程序可以安装在车主的终端设备上，且车主已经在该应用程序中通过蓝牙与蓝牙主模块实现了配对连接，蓝牙主模块和应用程序对蓝牙数据传输的mac(Media Access Control，媒体访问控制)地址进行存储。
当车主携带着终端设备靠近车辆、且终端设备上的应用程序正在运行时，终 端设备会向外发送广播信号，该广播信号中包含了终端设备的特征值信息和mac地址，当蓝牙主模块接收到熬该广播信号时，通过广播信号携带的mac地址实现与终端设备的蓝牙配对连接，然后将广播信号携带的特征值信息发送给各个蓝牙从模块。蓝牙从模块在接收到终端设备发送的广播信号时判断其携带的特征值信息是否与蓝牙主模块发送的特征值信息相同，若相同，则将接收到该终端设备发送的广播信号时检测到的信号强度值发送至蓝牙主模块。
由上，每个不同安装位置的蓝牙从模块将自身检测到的信号强度值发送至蓝牙主模块，蓝牙主模块接收不同安装位置的蓝牙从模块发送的信号强度值，然后基于每个蓝牙从模块的安装位置和发送的信号强度值，确定出发送广播信号的终端设备的所在位置，例如，确定出终端设备当前是在车外、还是车内，在车外时是在车辆的左侧还是右侧、是在车辆的前方还是后方等等。
蓝牙主模块在确定出车主的终端设备所在的位置后，可以将其发送至车辆的控制系统，车辆的控制系统可以基于车主的位置(即车主的终端设备的位置)，对车辆进行一定的管控处理。
控制系统进行的管控处理可以是：当确定出车主位于车外时，禁止车辆的发动机启动，而当确定出车主位于车内时，才允许发动机启动；当确定出车主在车辆外部且车辆的某个确定方位时，解锁该方位的车门，当车主打开该方位的车门后，才解锁其他方位的车门，以避免在车主未注意时有偷盗人员打开其他车门等情况的发生，例如，当终端设备在车辆的左前方(即主驾驶位置时)时，可以只解锁主驾驶的车门，当车主打开了主驾驶的车门后才解锁其他车门，等等。
由上可知，要保证蓝牙主模块定位的准确性，确定好各个蓝牙从模块的安装位置尤为重要，下面，对本申请中的识别各个蓝牙从模块的安装位置的方法进行详细的描述。
实施例1：
本实施例提出了一种识别蓝牙从模块安装位置的方法，以方便准确地识别蓝牙从模块的安装位置。
本实施例的识别蓝牙从模块安装位置的方法如下：在蓝牙从模块上设置位置检测引脚，在安装蓝牙从模块时，将不同安装位置的蓝牙从模块的位置检测引脚与不同的电平信号引脚相接，以使不同蓝牙从模块的位置检测引脚的电平情况不同；蓝牙从模块将自身的位置检测引脚的电平情况发送至蓝牙主模块，蓝牙主模块将接收到的蓝牙从模块的位置检测引脚的电平情况与预先存储的位置-电 平表进行比对，从而识别出蓝牙从模块所对应的安装位置信息；所述位置-电平表用于表示蓝牙从模块的安装位置与该安装位置的电平信号引脚的电平情况的关系。
上述电平信号引脚包括车身电源的电源端和车身电源的接地端，以分别对应高电平信号和低电平信号。
在实施中，技术人员可以预先设定多个蓝牙从模块的安装位置与该安装位置对应的电平情况的关系，即位置-电平表，并将该位置-电平表存储在蓝牙主模块中。可以理解的是，在位置-电平表中，不同安装位置对应的电平情况不相同。
蓝牙从模块上可以设置一个或多个位置检测引脚。在一个安装位置上安装蓝牙从模块时，可以先根据位置-电平表确定出该安装位置对应的电平情况，然后按照该电平情况，将蓝牙从模块的位置检测引脚与对应的电平信号引脚相连接，从而使得蓝牙从模块的所有的位置检测引脚的电平情况与位置-电平表中对应的该安装位置对应的电平情况相同。
这样，蓝牙从模块可以将自身的位置检测引脚的电平情况(即连接的电平信号引脚的电平情况)发送至蓝牙主模块，蓝牙主模块将接收到各个不同安装位置的蓝牙从模块发送的电平情况与预先存储的位置-电平表进行比对，从而确定出各个蓝牙从模块的安装位置。
可选的，电平信号引脚可以包括高电平引脚和低电平引脚。在安装蓝牙从模块时，可以将不同安装位置的蓝牙从模块的位置检测引脚分别与高电平引脚或低电平引脚相接，使得每个位置检测引脚的电平为高电平或者为低电平。
在本申请实施例中，每个蓝牙从模块对应一个电平情况。蓝牙从模块的位置检测引脚的电平情况为一个字符串，字符串的每一位对应该蓝牙从模块的一个位置检测引脚，字符串的每一位的数值代表了对应的位置检测引脚的电平(例如，高电平或者低电平)。例如，当一个蓝牙从模块具有三个位置检测引脚时，该蓝牙从模块的位置检测引脚的电平情况可以是110，代表着在该蓝牙从模块中，第一个位置检测引脚和第二个位置检测引脚连接的电平信号引脚均是高电平引脚，第三个位置检测引脚连接的电平信号引脚是低电平引脚。
如图1所示，本实施例中蓝牙从模块有两个，每个蓝牙从模块均设有一个位置检测引脚DET(Detection，检测)，预先存储的位置-电平表如下表所示。按照位置-电平表，将第一个蓝牙从模块(位于左前门处)的位置检测引脚DET与车辆电源的电源端VCC(Volt Current Condenser，供电电源)相接，将第二个蓝 牙从模块(位于右前门处)的位置检测引脚DET与车辆电源的接地端GND(Ground，电线接地端)相接。连接后，两个蓝牙从模块的位置检测引脚DET的电平情况不同(分别为高电平和低电平)，这样就可以通过蓝牙从模块的位置检测引脚的电平情况区分开两个蓝牙从模块的安装位置。
本实施例采用的位置-电平表如下：
蓝牙从模块的序号 蓝牙从模块的安装位置 位置检测引脚的电平情况
1 左前门 高电平
2 右前门 低电平
第一个蓝牙从模块将自身的位置检测引脚DET的电平情况(高电平)通过蓝牙从模块的数据引脚DLine(Data Line，数据传输线)(也可称作LIN)发送至蓝牙主模块的数据引脚DLine，蓝牙主模块将接收到的蓝牙从模块的位置检测引脚的电平情况与预先存储的位置-电平表进行比对，从而识别出蓝牙从模块所对应的安装位置为左前门；同样地，第二个蓝牙从模块将自身的位置检测引脚DET的电平情况(低电平)通过蓝牙从模块的数据引脚DLine发送至蓝牙主模块的数据引脚DLine，蓝牙主模块将接收到的蓝牙从模块的位置检测引脚的电平情况与预先存储的位置-电平表进行比对，从而识别出蓝牙从模块所对应的安装位置为右前门。在本实施例中，蓝牙主模块与蓝牙从模块的数据传输遵循LIN协议。
实施例2：
本实施例提出了一种识别蓝牙从模块安装位置的方法，以方便准确地识别蓝牙从模块的安装位置。
本实施例的识别蓝牙从模块安装位置的方法如下：在蓝牙从模块上设置位置检测引脚，在安装蓝牙从模块时，将不同安装位置的蓝牙从模块的位置检测引脚与不同的电平信号引脚相接，以使不同蓝牙从模块的位置检测引脚的电平情况不同；蓝牙从模块将自身的位置检测引脚的电平情况与预先存储的位置-电平表进行比对，从而识别出自身所对应的安装位置，蓝牙从模块将自身的安装位置信息发送至蓝牙主模块；所述位置-电平表用于表示蓝牙从模块的安装位置与该安装位置的电平信号引脚的电平情况的关系。
上述电平信号引脚包括车身电源的电源端和车身电源的接地端，以分别对应高电平信号和低电平信号。
蓝牙从模块的安装位置处设有线束接插器，线束接插器设有N个位置对接引脚和N个位置设置引脚，每个位置对接引脚分别与对应的位置设置引脚连接；线束接插器的每个位置设置引脚分别与高电平引脚或低电平引脚连接；蓝牙从模块的位置检测引脚与对应的线束接插器上对应的位置对接引脚相对接。
在实施中，在每个蓝牙从模块的安装位置上都设置一个线束接插器，该线束接插器设置有N个位置对接引脚和N个位置设置引脚，即位置对接引脚的数量、位置设置引脚的数量均与蓝牙从模块上的位置检测引脚的数量相同。在一个安装位置安装线束接插器时，先根据位置-电平表确定出该安装位置对应的电平情况，然后将线束接插器的每个位置设置引脚分别与对应的高电平引脚或低电平引脚相接，使该线束接插器的位置设置引脚的电平情况与位置-电平表中该安装位置对应的电平情况相同。在线束接插器内部，每个位置设置引脚分别与对应的位置对接引脚相连接，则该线束接插器的位置对接引脚的电平情况与位置设置引脚的电平情况相同，进而与该安装位置对应的电平情况相同。
在后续安装蓝牙从模块时，可以将蓝牙从模块的每个位置检测引脚与线束接插器上对应的位置对接引脚相连接，使得该蓝牙从模块的位置检测引脚的电平情况与该安装位置上的线束接插器的位置对接引脚的电平情况相同，即与该安装位置对应的电平情况相同。
本实施例中的蓝牙从模块有四个，每个蓝牙从模块上均设有两个位置检测引脚DET1、DET2，四个蓝牙从模块的两个位置检测引脚DET1、DET2分别通过电平信号引脚设置为下述四种情况：1、高电平和高电平(如图2所示)；2、高电平和低电平；3、低电平和高电平；4、低电平和低电平。每个蓝牙从模块的两个位置检测引脚的电平组合情况均不同，这样就可以通过蓝牙从模块的位置检测引脚的电平组合情况区分开四个蓝牙从模块的安装位置。
为方便安装，蓝牙从模块的安装位置处设有线束接插器，所述线束接插器设有两个位置对接引脚和两个位置设置引脚，每个位置对接引脚均与对应的位置设置引脚连接；线束接插器的位置设置引脚与对应的电平信号引脚相接；所述蓝牙从模块的位置检测引脚与对应的线束接插器上对应的位置对接引脚相对接。所述线束接插器还设有相互连接的电源对接引脚与电源信号引脚，相互连接的接地对接引脚与接地信号引脚，以及相互连接的数据对接引脚与数据传输引脚；所述蓝牙从模块的电源引脚VCC与线束接插器的电源对接引脚相对接，蓝牙从模块的接地引脚GND与线束接插器的接地对接引脚相对接，蓝牙从模块的数据 引脚DLine与线束接插器的数据对接引脚相对接，蓝牙主模块的数据引脚DLine与线束接插器的数据传输引脚相接；线束接插器的电源信号引脚、蓝牙主模块的电源引脚分别与车身电源的电源端相接，线束接插器的接地信号引脚、蓝牙主模块的接地引脚分别与车身电源的接地端相接。为方便识别，附图2中蓝牙从模块、线束接插器及蓝牙主模块的相互对接的引脚名称一致。
线束接插器可以预先固定在蓝牙从模块的安装位置处，并预先将线束接插器的位置设置引脚DET1、DET2与对应的电平信号引脚(车身电源的电源端或接地端)相接，将蓝牙主模块的数据引脚DLine与线束接插器的数据传输引脚相接；将线束接插器的电源信号引脚VCC与车身电源的电源端相接，将线束接插器的接地信号引脚GND与车身电源的接地端相接。由于上述线束接插器设置了与蓝牙从模块的各个引脚相对应的对接引脚，在安装蓝牙从模块时，只需要将蓝牙从模块与线束接插器对接，即可实现蓝牙从模块的所有引脚的连接，大大提高了装配效率。
本实施例采用的位置-电平表如下：
Figure PCTCN2021122912-appb-000001
第一个蓝牙从模块(即附图2中的蓝牙从模块)将自身的位置检测引脚的电平情况(11)与预先存储的位置-电平表进行比对，从而识别出自身所对应的安装位置为左前门，蓝牙从模块将自身的安装位置信息(A)通过数据引脚DLine发送至蓝牙主模块；
第二个蓝牙从模块将自身的位置检测引脚的电平情况(10)与预先存储的位置-电平表进行比对，从而识别出自身所对应的安装位置为右前门，蓝牙从模块将自身的安装位置信息(B)通过数据引脚DLine发送至蓝牙主模块；
第三个蓝牙从模块将自身的位置检测引脚的电平情况(01)与预先存储的位置-电平表进行比对，从而识别出自身所对应的安装位置为左后门，蓝牙从模块将自身的安装位置信息(C)通过数据引脚DLine发送至蓝牙主模块；
第四个蓝牙从模块将自身的位置检测引脚的电平情况(00)与预先存储的位 置-电平表进行比对，从而识别出自身所对应的安装位置为右后门，蓝牙从模块将自身的安装位置信息(D)通过数据引脚DLine发送至蓝牙主模块；
在本实施例中，蓝牙主模块与蓝牙从模块的数据传输遵循LIN协议。
实施例3：
本申请实施例提供了一种车辆，如图3所示，车辆包括定位信息发生装置、蓝牙主模块、多个蓝牙从模块和车身。定位信息发生装置和蓝牙主模块固定在所述车身上，多个蓝牙从模块分别固定在车身的不同安装位置处。定位信息发生装置分别与多个蓝牙从模块电性连接。
蓝牙从模块
技术人员可以根据想要的最终确定的目标设备位置的精度和花费成本等方面，确定出在车辆中要设置的蓝牙从模块的数量，在本申请实施例中，蓝牙从模块的数量可以是任意合理性的数值，例如，可以是4，当然，也可以是其它数值，本申请实施例对此不作限定。
技术人员还可以预先设定多个蓝牙从模块的安装位置，并设定好这些安装位置中每个安装位置对应的定位信息(此处的定位信息相当于上述中的电平情况)。例如，若车辆中设置的蓝牙从模块的数量是4，则可以设定蓝牙从模块的安装位置是左前门处、右前门处、左后门处和右后门处，每个安装位置分别设定一个可以识别的定位信息。
多个蓝牙从模块分别固定在预先设定好的安装位置处，每个安装位置处设置一个蓝牙从模块，蓝牙从模块的具体固定位置可以是车身上的任意合理性的位置，在本申请实施例中，蓝牙从模块可以设置在车门的门把手上。
在本申请实施例中，蓝牙从模块的功能是：用于获取定位信息发生装置产生的与蓝牙从模块的安装位置相对应的定位信息，当接收到目标设备发送的广播信号时，检测广播信号的信号强度值，向蓝牙主模块发送信号强度值和定位信息发生装置发送的定位信息。其中，目标设备即为车辆的车主的终端设备。
在实施中，每个蓝牙从模块分别与定位信息发生装置电性连接，蓝牙从模块可以获取定位信息发生装置发送来的与之安装位置相对应的定位信息。
当目标设备靠近车辆一定距离时，蓝牙从模块可以接收到目标设备发送的广播信号，并检测接收到的广播信号的信号强度值(也可以称为RSSI值)，然后，将检测到的信号强度值和定位信息发生装置发送的定位信息，一起发送至蓝 牙主模块。
定位信息发生装置
信号发生装置可以固定设置在车身任意合适的位置处，本申请实施例对此不作限定。定位信息发生装置，用于向每个蓝牙从模块发送与蓝牙从模块的安装位置相对应的定位信息。
在本申请实施例中，每个蓝牙从模块分别与定位信息发生装置电性连接。定位信息发生装置可以具有多个不同的引脚。对于与定位信息发生装置电性连接的其他部件来说，与之相连接的引脚的不同，会使得这些部件可以接收到定位信息发生装置发送的不同的定位信息。
在整车装配时，技术人员可以基于预先设定好的安装位置和定位信息之间的对应关系，对定位信息发生装置与每个蓝牙从模块之间连接的线路进行设置，使得定位信息发生装置发送给每个蓝牙从模块的定位信息均不相同，且向蓝牙从模块发送的定位信息与该蓝牙从模块的安装位置相对应，即满足预先设定好的安装位置和定位信息的对应关系。
蓝牙主模块
蓝牙主模块可以固定连接在车身的任意合适的位置处，例如，可以设置在车身的内部空腔中等。
蓝牙主模块，用于基于安装位置和定位信息的对应关系，以及每个蓝牙从模块发送的定位信息，确定每个蓝牙从模块的安装位置，基于每个蓝牙从模块发送的信号强度值和每个蓝牙从模块的安装位置，确定目标设备的位置。
在实施中，蓝牙主模块在接受到各个蓝牙从模块发送的定位信息和信号强度值后，可以基于预先存储在蓝牙主模块中的安装位置和定位信息的对应关系，确定出每个蓝牙从模块的安装位置。然后，可以再基于每个蓝牙从模块的安装位置和发送来的信号强度值，以及定位算法，计算出目标设备的位置。其中，定位算法可以是任意一种合理性的算法，本申请实施例对此不作限定。
在确定出目标设备的位置后，蓝牙主模块可以将其发送给车辆的控制系统，控制系统可以基于目标设备的位置对车辆进行相应的控制处理。
可选的，蓝牙主模块也可以在获取目标设备发送的广播信号时检测出对应的信号强度值。当在接收到各个蓝牙从模块发送来的信号强度值和定位信息后，可以先基于定位信息确定出每个蓝牙从模块的安装位置，然后基于各个蓝牙从模块的安装位置、各个蓝牙从模块发送来的信号强度值、预先存储的蓝牙主模块 的安装位置、蓝牙主模块自身检测到的信号强度值和定位算法，计算出目标设备的位置。
蓝牙主模块和多个蓝牙从模块之间的数据传输可以是蓝牙通信，也可以是有线通信，其中，有线通信的方式也有很多，在本申请实施例中，可以通过设置数据引脚来实现有线通信，如图4所示，对应的设置可以是：蓝牙从模块具有一个第一数据引脚(此处的第一数据引脚相当于上述的蓝牙从模块的数据引脚)，蓝牙主模块具有多个第二数据引脚(此处的第二数据引脚相当于上述的蓝牙主模块的数据引脚)。蓝牙主模块的每个第二数据引脚分别与一个蓝牙从模块的第一数据引脚电性连接。在实施中，蓝牙从模块与蓝牙主模块之间可以通过相互电性连接的第一数据引脚和第二数据引脚来实现数据的传输。其中，第一数据引脚和第二数据引脚均可以是LIN引脚，蓝牙主模块与蓝牙从模块的数据传输遵循局部互联网络LIN协议。
蓝牙从模块和定位信息发生装置可以通过引脚实现电性连接，如图5所示，下面，对其进行详细的说明。
蓝牙从模块具有至少一个位置检测引脚，定位信息发生装置具有高电平引脚和低电平引脚。每个蓝牙从模块的每个位置检测引脚分别与高电平引脚或低电平引脚电性连接。
在实施中，对于一个蓝牙从模块来说，该蓝牙从模块的每个位置检测引脚分别与定位信息发生装置的高电平引脚或者低电平引脚电性连接，则每个位置检测引脚都可以接收到来自定位信息发生装置发送的一个电平信号，若一个位置检测引脚与定位信息发生装置的高电平引脚电性连接，则该位置检测引脚的电平情况可以是1，若一个位置检测引脚与定位信息发生装置的低电平引脚电性连接，则该位置检测引脚的电平情况可以是0。
通过上述方式，可以得到一个蓝牙从模块对应的定位信息，即：定位信息包括至少一位字符，定位信息的位数与蓝牙从模块的位置检测引脚的数目相同。
定位信息发生装置，用于通过高电平引脚发送高电平信号，通过低电平引脚发送低电平信号。蓝牙从模块，用于基于每个位置检测引脚接收到的高电平信号或低电平信号，确定定位信息。
定位信息中包括的字符即为位置检测引脚的电平情况。对于只具有一个位置检测引脚的蓝牙从模块来说，蓝牙从模块的定位信息是该蓝牙从模块的位置 检测引脚的电平情况，即0或者1。对于具有多个位置检测引脚的蓝牙从模块来说，蓝牙从模块的定位信息是该蓝牙从模块的所有的位置检测引脚的电平情况，按照预设顺序排列后的字符串。
例如，蓝牙从模块具有三个位置检测引脚，第一个位置检测引脚和第三个位置检测引脚均与高电平引脚电性连接，第二个位置检测引脚与低电平引脚电性连接，则该蓝牙从模块的定位信息为101。
再例如，图5所示的四个蓝牙从模块，每个蓝牙从模块上具有两个位置检测引脚，每个蓝牙从模块的每个位置检测引脚均分别与高电平引脚或低电平引脚电性连接，以使这四个蓝牙从模块的定位信息分别为11、10、01和00。
每个蓝牙从模块上设置的位置检测引脚的数量与蓝牙从模块的数量相关，若蓝牙从模块的数量是M，每个蓝牙从模块的位置检测引脚的数量是N，则M为大于1的整数，N为大于或等于1的整数，M与N的关系可以是：2 N≥M。例如，当需要设置两个不同安装位置的蓝牙从模块时，则每个蓝牙从模块上的位置检测引脚的数量最少为1，当需要设置四个不同安装位置的蓝牙从模块时，则每个蓝牙从模块上的位置检测引脚的数量最少为2。
信号发生装置可以是单独设置的装置，也可以是车辆本身就具备的装置，例如，定位信息发生装置可以是车辆电源(此处的车辆电源相当于上述的车身电源)，定位信息发生装置的高电平引脚可以是车辆电源的电源引脚(此处的电源引脚相当于上述的电源引脚)，定位信息发生装置的低电平引脚可以是车辆电源的接地引脚(此处的接地引脚相当于上述的接地引脚)，当整车装配时，蓝牙从模块的位置检测引脚可以分别与电源引脚或者接地引脚电性连接。
同时，蓝牙从模块和蓝牙主模块还需要与车辆电源相接以保证供电，与接地引脚相接以增强电性连接的安全性，对应的设置可以如下。
蓝牙从模块具有第一电源引脚(此处的第一电源引脚相当于上述的蓝牙从模块的电源引脚)和第一接地引脚(此处的第一接地引脚相当于上述的蓝牙从模块的接地引脚)，蓝牙主模块具有第二电源引脚(此处的第二电源引脚相当于上述的蓝牙主模块的电源引脚)和第二接地引脚(此处的第二接地引脚相当于上述的蓝牙主模块的接地引脚)。蓝牙从模块的第一电源引脚和蓝牙主模块的第二电源引脚分别与车辆电源的电源引脚电性连接，蓝牙从模块的第一接地引脚和蓝牙主模块的第二接地引脚分别与车辆电源的接地引脚电性连接。
为了便于蓝牙从模块的安装，本申请实施例的车辆还可以设置多个接插器，对应的处理可以是：车辆还包括多个接插器。多个接插器分别固定在车身的不同安装位置处，多个接插器分别与定位信息发生装置电性连接，多个接插器分别与一个蓝牙从模块插接且电性连接。
在实施中，在整车的线路安装时，车辆的每个预设的安装位置处均可以设置一个接插器，多个接插器分别与定位信息发生装置电性连接，然后再将多个蓝牙从模块分别与一个接插器插接且电性连接，这样，蓝牙从模块可以通过接插器与定位信息发生装置实现电性连接。
为方便蓝牙从模块与接插器之间的插接连接，还可以设置相互匹配的插接防呆结构。
对于上述的蓝牙从模块具有位置检测引脚、第一电源引脚、第一接地引脚或第一数据引脚的情况，接插器也可以对应设置不同的引脚，分别与蓝牙从模块、定位信息发生装置和蓝牙主模块实现电性连接，对应的设置可以如下：
接插器具有至少一个位置对接引脚、至少一个位置设置引脚、电源信号引脚、电源对接引脚、接地信号引脚、接地对接引脚、数据传输引脚和数据对接引脚。
对于一个接插器来说，位置对接引脚的数量和位置设置引脚的数量相同，也与蓝牙从模块设置的位置检测引脚的数量相同，且每个位置对接引脚分别与一个位置设置引脚电性连接，电源信号引脚和电源对接引脚电性连接，接地信号引脚和接地对接引脚电性连接，数据传输引脚和数据对接引脚电性连接。
对于通过接插器实现蓝牙从模块与定位信息发生装置之间的信息传输的相应设置可以是：以一个安装位置上设置的接插器和蓝牙从模块为例，接插器的每个位置对接引脚分别与蓝牙从模块的一个位置检测引脚电性连接，接插器的每个位置设置引脚分别与定位信息发生装置的高电平引脚或者低电平引脚电性连接，使得定位信息发生装置可以通过电平引脚(高电平引脚和/或低电平引脚)、位置设置引脚、位置对接引脚和位置检测引脚之间的电性连接，将该安装位置对应的定位信息发送给蓝牙从模块。
对于通过接插器实现蓝牙从模块的供电需求和接地需求的相应设置可以是：接插器的电源对接引脚与蓝牙从模块的第一电源引脚电性连接，接插器的电源信号引脚与车辆电源的电源引脚电性连接，可以通过电源引脚、电源信号引脚、电源对接引脚和第一电源引脚之间的电性连接，实现蓝牙从模块的供电需求。接插器的接地对接引脚与蓝牙从模块的第一接地引脚电性连接，接插器的接地信 号引脚与车辆电源的接地引脚电性连接，可以通过接地引脚、接地信号引脚、接地对接引脚和第一接地引脚之间的电性连接，实现蓝牙从模块的接地需求。
对于通过接插器实现蓝牙从模块与蓝牙主模块之间的数据传输的相应设置可以是：接插器的数据对接引脚与蓝牙从模块的第一数据引脚电性连接，接插器的数据传输引脚与蓝牙主模块的一个第二数据引脚电性连接，可以通过第一数据引脚、数据对接引脚、数据传输引脚和第二数据引脚之间的电性连接，实现蓝牙从模块和蓝牙主模块之间的数据传输。
下面，以设置四个蓝牙从模块为例，对本申请实施例进行举例说明。
车辆中设置四个蓝牙从模块，每个蓝牙从模块具有两个位置检测引脚(即DET1和DET2)、一个第一电源引脚(即VCC)、一个第一接地引脚(即GND)和一个第一数据引脚(即LIN)，为方便观察，接插器的位置对接引脚和位置设置引脚也以DET1和DET2来表示，接插器的电源信号引脚和电源对接引脚、蓝牙主模块的第二电源引脚、车辆电源的电源引脚也以LIN来表示，接插器的接地信号引脚和接地对接引脚、蓝牙主模块的第二接地引脚、车辆电源的接地引脚也以GND来表示，接插器的数据传输引脚和数据对接引脚、蓝牙主模块的第二数据引脚也分别用LIN1、LIN2、LIN3和LIN4来表示。
预先存储的安装位置与定位信息的对应关系可以如下表所示：
安装位置 定位信息
左前门 11
右前门 10
左后门 01
右后门 00
在图6-10中，左前门用A来表示，右前门用B来表示，左后门用C来表示，右后门用D来表示。
参见图6，为左前门处的安装位置的蓝牙从模块、接插器、蓝牙主模块和车辆电源之间的电性连接示意图，蓝牙从模块(A)的DET1和DET2两个引脚均与车辆电源的VCC电性连接，因此车辆电源向蓝牙从模块(A)发送的定位信息为11。
参见图7，为右前门处的安装位置的蓝牙从模块、接插器、蓝牙主模块和车辆电源之间的电性连接示意图，蓝牙从模块(B)的DET1与车辆电源的VCC电性连接，DET2与车辆电源的GND电性连接，因此车辆电源向蓝牙从模块(B) 发送的定位信息为10。
参见图8，为左后门处的安装位置的蓝牙从模块、接插器、蓝牙主模块和车辆电源之间的电性连接示意图，蓝牙从模块(C)的DET1与车辆电源的GND电性连接，DET2与车辆电源的VCC电性连接，因此车辆电源向蓝牙从模块(C)发送的定位信息为01。
参见图9，为右后门处的安装位置的蓝牙从模块、接插器、蓝牙主模块和车辆电源之间的电性连接示意图，蓝牙从模块(D)的DET1和DET2两个引脚均与车辆电源的GND电性连接，因此车辆电源向蓝牙从模块(D)发送的定位信息为00。
参见图10，为上述四个蓝牙从模块、四个接插器、蓝牙主模块和车辆电源之间的电性连接示意图。
当蓝牙主模块接收到这四个蓝牙从模块发送来的信号强度值和定位信息后，基于定位信息与安装位置的对应关系、以及各个蓝牙从模块发送来的定位信息，确定出每个蓝牙从模块的安装位置，再基于每个蓝牙从模块的安装位置和信号强度值，计算出目标设备的位置。
本申请实施例体用了一种设备定位的方法，该方法应用于车辆，车辆包括定位信息发生装置、蓝牙主模块、多个蓝牙从模块和车身。定位信息发生装置和蓝牙主模块固定在车身上，多个蓝牙从模块分别固定在车身的不同安装位置处。定位信息发生装置分别与多个蓝牙从模块电性连接。
设备定位的方法包括以下步骤：
蓝牙从模块获取定位信息发生装置产生的与蓝牙从模块的安装位置相对应的定位信息。蓝牙从模块接收目标设备发送的广播信号，并检测广播信号的信号强度值，向蓝牙主模块发送信号强度值和定位信息发生装置发送的定位信息。蓝牙主模块基于安装位置和定位信息的对应关系，以及每个蓝牙从模块发送的定位信息，确定每个蓝牙从模块的安装位置，基于每个蓝牙从模块发送的信号强度值和每个蓝牙从模块的安装位置，确定目标设备的位置。
在实施中，定位信息发生装置可以向每个蓝牙从模块发送与该蓝牙从模块的安装位置相对应的定位信息。
在目标设备靠近车辆时，蓝牙主模块可以与目标设备实现蓝牙配对连接，然后目标设备会向外发送广播信号，该广播信号中携带有目标设备的特征值信息， 蓝牙主模块在接收到该广播信号后，可以将该特征值信息发送给各个蓝牙从模块。
蓝牙从模块接收到该广播信号后，将该广播信号中携带的特征值信息与蓝牙主模块发送来的特征值信息进行对比，若相同，说明该广播信号来自于目标设备，则可以将检测到的该广播信号的信号强度值和定位信息发生装置发送来的定位信息，发送给蓝牙主模块。
蓝牙主模块在接收到各个蓝牙从模块发送来的信号强度值和定位信息后，可以基于预先存储的安装位置和定位信息的对应关系，以及每个蓝牙从模块发送来的定位信息，确定出每个蓝牙从模块的安装位置。然后基于每个蓝牙从模块的安装位置、每个蓝牙从模块发送来的信号强度值和定位算法，确定出目标设备的位置。
可选的，蓝牙主模块也可以检测目标设备发送的广播信号的信号强度值。蓝牙主模块在接收到各个蓝牙从模块发送来的信号强度值和定位信息后，先确定出每个蓝牙从模块的安装位置，然后可以基于每个蓝牙从模块的安装位置、每个蓝牙从模块发送来的信号强度值、蓝牙主模块预先存储的自身的安装位置、蓝牙主模块检测到的信号强度值和定位算法，确定出目标设备的位置。
本申请实施例提供的技术方案带来的有益效果是：蓝牙从模块可以向蓝牙主模块发送信号强度值和蓝牙从模块接收到的定位信息，蓝牙主模块可以基于该定位信息，以及预先存储的安装位置和定位信息的对应关系，确定出该蓝牙从模块位于哪一个安装位置处，再对不同安装位置处检测到的信号强度值进行计算，从而确定出目标设备的位置。采用本申请，蓝牙主模块可以基于蓝牙从模块发送来的定位信息，确定出每个蓝牙从模块的安装位置，而无需在整车安装后，再通过诊断工序确定出每个不同安装位置处的蓝牙从模块的标识信息并将其发送至蓝牙主模块，减少了生产工序，提高了生产效率。
上面结合附图对本发明进行了示例性描述，显然本发明具体设计并不受上述方式的限制，只要采用了本发明的构思和技术方案进行的各种非实质性的改进，或未经改进将本发明的构思和技术方案直接应用于其它场合的，均在本发明的保护范围之内。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本申请的较佳实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种车辆，其特征在于，所述车辆包括定位信息发生装置、蓝牙主模块、多个蓝牙从模块和车身；
    所述定位信息发生装置和所述蓝牙主模块固定在所述车身上，所述多个蓝牙从模块分别固定在所述车身的不同安装位置处；
    所述定位信息发生装置分别与所述多个蓝牙从模块电性连接；
    所述蓝牙从模块，用于获取所述定位信息发生装置产生的与所述蓝牙从模块的安装位置相对应的定位信息，当接收到目标设备发送的广播信号时，检测所述广播信号的信号强度值，向所述蓝牙主模块发送所述信号强度值和所述定位信息发生装置发送的定位信息；
    所述蓝牙主模块，用于基于安装位置和定位信息的对应关系，以及所述每个蓝牙从模块发送的定位信息，确定所述每个蓝牙从模块的安装位置，基于每个蓝牙从模块发送的信号强度值和每个蓝牙从模块的安装位置，确定所述目标设备的位置。
  2. 根据权利要求1所述的车辆，其特征在于，所述蓝牙从模块具有一个第一数据引脚，所述蓝牙主模块具有多个第二数据引脚；
    所述蓝牙主模块的每个第二数据引脚分别与一个蓝牙从模块的第一数据引脚电性连接。
  3. 根据权利要求2所述的车辆，其特征在于，所述蓝牙主模块与蓝牙从模块的数据传输遵循局部互联网络LIN协议。
  4. 根据权利要求1所述的车辆，其特征在于，所述蓝牙从模块具有至少一个位置检测引脚，所述定位信息发生装置具有高电平引脚和低电平引脚；
    每个蓝牙从模块的每个位置检测引脚分别与高电平引脚或低电平引脚电性连接；
    所述定位信息包括至少一位字符，所述定位信息的位数与所述蓝牙从模块的位置检测引脚的数目相同；
    所述定位信息发生装置，用于通过所述高电平引脚发送高电平信号，通过所述低电平引脚发送低电平信号；
    所述蓝牙从模块，用于基于所述每个位置检测引脚接收到的高电平信号或低电平信号，确定所述定位信息。
  5. 根据权利要求4所述的车辆，其特征在于，所述蓝牙从模块的数量是M，所述每个蓝牙从模块的位置检测引脚的数量是N，所述M是大于1的整数，所述N是大于或等于1的整数，2 N≥M。
  6. 根据权利要求4所述的车辆，其特征在于，所述定位信息发生装置是车辆电源，所述高电平引脚是所述车辆电源的电源引脚，所述低电平引脚是所述车辆电源的接地引脚。
  7. 根据权利要求6所述的车辆，其特征在于，所述蓝牙从模块具有第一电源引脚和第一接地引脚，所述蓝牙主模块具有第二电源引脚和第二接地引脚；
    所述蓝牙从模块的第一电源引脚和所述蓝牙主模块的第二电源引脚分别与车辆电源的电源引脚电性连接，所述蓝牙从模块的第一接地引脚和所述蓝牙主模块的第二接地引脚分别与所述车辆电源的接地引脚电性连接。
  8. 根据权利要求1所述的车辆，其特征在于，所述车辆还包括多个接插器；
    所述多个接插器分别固定在所述车身的不同安装位置处，所述多个接插器分别与所述定位信息发生装置电性连接，所述多个接插器分别与一个蓝牙从模块插接且电性连接。
  9. 根据权利要求8所述的车辆，其特征在于，所述蓝牙从模块和所述接插器具有相互匹配的插接防呆结构。
  10. 一种设备定位的方法，其特征在于，所述方法应用于车辆，所述车辆包括定位信息发生装置、蓝牙主模块、多个蓝牙从模块和车身；
    所述定位信息发生装置和所述蓝牙主模块固定在所述车身上，所述多个蓝牙从模块分别固定在所述车身的不同安装位置处；
    所述定位信息发生装置分别与所述多个蓝牙从模块电性连接；
    所述方法包括：
    所述蓝牙从模块获取所述定位信息发生装置产生的与所述蓝牙从模块的安装位置相对应的定位信息；
    所述蓝牙从模块接收所述目标设备发送的广播信号，并检测所述广播信号的信号强度值，向所述蓝牙主模块发送所述信号强度值和接收自所述定位信息发生装置的定位信息；
    所述蓝牙主模块基于安装位置和定位信息的对应关系，以及所述每个蓝牙从模块发送的定位信息，确定所述每个蓝牙从模块的安装位置，基于每个蓝牙从模块发送的信号强度值和每个蓝牙从模块的安装位置，确定所述目标设备的位置。
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