EP2195800A1 - Unité de mise à jour et procédé de mise à jour d'une carte numérique - Google Patents

Unité de mise à jour et procédé de mise à jour d'une carte numérique

Info

Publication number
EP2195800A1
EP2195800A1 EP08736495A EP08736495A EP2195800A1 EP 2195800 A1 EP2195800 A1 EP 2195800A1 EP 08736495 A EP08736495 A EP 08736495A EP 08736495 A EP08736495 A EP 08736495A EP 2195800 A1 EP2195800 A1 EP 2195800A1
Authority
EP
European Patent Office
Prior art keywords
updating
vehicle
update
data
measurement data
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.)
Withdrawn
Application number
EP08736495A
Other languages
German (de)
English (en)
Inventor
Ulrich STÄHLIN
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.)
Continental Teves AG and Co OHG
Original Assignee
Continental Teves AG and Co OHG
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 Continental Teves AG and Co OHG filed Critical Continental Teves AG and Co OHG
Publication of EP2195800A1 publication Critical patent/EP2195800A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
    • G09B29/10—Map spot or coordinate position indicators; Map reading aids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/38—Electronic maps specially adapted for navigation; Updating thereof
    • G01C21/3804—Creation or updating of map data
    • G01C21/3833—Creation or updating of map data characterised by the source of data
    • G01C21/3848—Data obtained from both position sensors and additional sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/38—Electronic maps specially adapted for navigation; Updating thereof
    • G01C21/3885—Transmission of map data to client devices; Reception of map data by client devices
    • G01C21/3896—Transmission of map data from central databases
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9323—Alternative operation using light waves
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9324—Alternative operation using ultrasonic waves

Definitions

  • the invention relates to the navigation and safety technology for vehicles.
  • the invention relates to an updating device for updating a digital map for a vehicle, an updating system, the use of an updating device in a vehicle, a method for updating a digital map, a computer program product and a computer-readable medium.
  • the true position of the object in the map may differ from the imaged position of the object in the map.
  • the reason for this can be on the one hand in measurement errors in the localization method, on the other hand in inaccuracies of the card.
  • the map matching procedure matches the measured position with the map information about the location and geometry of objects in the map to determine the most likely position of the object on the map.
  • the position of the vehicle is usually measured with the assistance of the satellite positioning system GPS.
  • the correctness of the measured and the actual position is given in GPS with about 15 m.
  • the digital map can have tolerances in the meter range.
  • the navigation device now the position of the vehicle must be determined in the digital map, so z. B. a meaningful route calculation from the current location to the destination can be determined. Without reconciling the measured position with the map information, the vehicle could be outside the digitized road or on the wrong road in the map.
  • the location of the vehicle in the digital map is crucial, the measured position is compared with the map information so that the most probable location of the vehicle is determined in the map for navigation. For this purpose, the map matching the knowledge about the movements of the vehicle are used.
  • Digital cards are usually out of date at delivery. Therefore, updating the card is essential if you want the digital card to match the current conditions. However, these updates involve a large amount of data because the entire map is always updated.
  • FCD floating car data
  • GPS Global Positioning System
  • GSM Global System for Mobile Communication
  • the described embodiments likewise relate to the updating device, the updating system, the method, the use, the computer program product and the computer-readable medium.
  • an updating device for updating a digital map for a vehicle which comprises a detection unit in the vehicle for acquiring measured values, a communication unit for transmitting measured data, which based on the measured values, to a central office and to receive update data from the center, as well as an update unit for updating the digital map based on the update data, the update data being based on the measurement data.
  • the updating means in cooperation with the center, is able to generate additional, up-to-date information with which a digital map can be updated or supplemented.
  • the detection unit detects one or a plurality of partially completely different measured values, which it can pass on via the communication unit to the center.
  • the transmitted measurement data is evaluated in the control center. The evaluation can already take place at least partially within the updating device.
  • the center then generates corresponding update data, which are transmitted to the update device and / or also to other vehicles.
  • This update data can be on the one hand additional data for the digital map or even dynamic information that can be transmitted for example by means of TMC (Traffic Message Channel).
  • the dynamic information may include information about congestion and other traffic information. It is not an intervention in the digital map data needed to pass this information to the driver. Updating the digital map in this case means communicating the additional information to the driver who collects and evaluates this information along with the map information.
  • the updater may thus be used to generate a multi-layered, up-to-date security card.
  • the detection unit has at least one sensor which is selected from the group consisting of GPS sensor, environment sensor, ESP sensor, camera, ABS sensor, ASR sensor and speed sensor.
  • control center is a traffic data center as a service provider.
  • recorded measured values are processed in the vehicle before they are transmitted as measurement data to the control center.
  • a preselection can already be made within the vehicle, which measured values are to be transmitted to the center. Furthermore, the measured values can be processed in such a way that they correspond to a specific standard, so that the computing power required in the control center can be reduced.
  • the updating unit is designed to produce a security card on the basis of the updating of the digital map, wherein the security map contains security-relevant information about a current road situation.
  • the digital map is a digital navigation map.
  • digital map is also understood to mean maps for ADAS (Advanced Driver Assistance System), without any navigation taking place
  • ADAS Advanced Driver Assistance System
  • Map and Positioning Engine MPE from Navteq.
  • an updating system for updating digital maps for a plurality of vehicles is provided, the updating system having an above-described
  • Updating device and a center has.
  • the central office is designed to receive measurement data from the update device and to transmit update data to the update device. Furthermore, the control center creates the update data based on the measured data.
  • the updating system is thus a system with a central control (control center), for example in the form of a server, which communicates with the individual via a wireless communication link
  • Updating devices of the various vehicles communicates.
  • the transmission of the data between the center and the updating means is based on UMTS, GSM / GPRS, WLAN or e.g. WiMax.
  • control center is for individual transmission of individualized Update data to the plurality of vehicles running.
  • the center may provide each of the vehicles with specific, selected, vehicle-tuned update data.
  • the update data may differ from vehicle to vehicle, depending on where the vehicle is located. For example, a first vehicle only needs update data regarding a first part of the digital map, whereas a second vehicle needs updating with respect to a completely different, second part of the digital map.
  • the same data may be transmitted to all subscribers in a broadcast mode.
  • the center is designed to receive measurement data from a plurality of communication devices of different vehicles and to generate the update data on the basis of all received measurement data.
  • the center may also receive measurement data from sensors outside of the vehicles, for example, induction loops in a road or detectors at the roadside or under a bridge.
  • control center is designed for the statistical preparation of the measurement data for generating the update data.
  • Data mining is the application of statistical mathematical methods to a database with the aim of pattern recognition.
  • the vehicle is, for example, a motor vehicle, such as a car, bus or truck, or else a rail vehicle, a ship, an aircraft, like a helicopter or airplane, or for example a bicycle.
  • a motor vehicle such as a car, bus or truck
  • a rail vehicle such as a ship, an aircraft, like a helicopter or airplane, or for example a bicycle.
  • a method for updating a digital map of a vehicle is specified in which measured values are recorded by a detection unit in the vehicle, measurement data based on the measured values are transmitted from the vehicle to a control center, update data based on the measured data at the central office, the update data based on the measurement data is transmitted from the center to an update unit and the digital map is updated based on the update data.
  • the detection of measured values in the vehicle comprises the determination of a vehicle speed in a GPS position of the vehicle, the determination of distances to other vehicles by means of environment sensors, the determination of information about the road surface by means of ESP sensors, the determination of Safety conditions by means of environment sensors, the detection of lanes by means of cameras or the determination of ABS and / or ESP and / or ASR interventions.
  • a comparison with data in the digital map is made prior to transmission. In this way, an accurate identification of the position on the map can be made.
  • a computer program product which, when executed on a processor, instructs the processor to perform the method steps specified above.
  • a computer-readable medium having stored thereon a computer program product which, when executed on a processor, instructs the processor to perform the method steps outlined above.
  • a safety-oriented digital map such as a digital safety map
  • all involved vehicles send the data known to them about the traffic situation and the road course or state to a traffic data center, which then processes them and distributes them to all other vehicles.
  • the processing is used to determine statements about the road and thus z.
  • traffic jams, accidents, oil spills, bad Road conditions and the like to enter the digital map.
  • a basic consideration of the invention is that it allows the simultaneous use of data from very many vehicles, thereby providing more accurate and up-to-date data for a current digital map.
  • Fig. 1 shows a schematic representation of an updating device according to an embodiment of the invention.
  • Fig. 2 shows a schematic representation of an update system according to an embodiment of the invention.
  • FIG. 3 shows a schematic representation of a section of a digital map according to an exemplary embodiment of the invention.
  • FIG. 4 shows a flow chart of a method according to an embodiment of the invention.
  • the illustrations in the figures are schematic and not to scale.
  • FIG. 1 shows a schematic representation of components of an updating device 100 which is installed, for example, in a vehicle and serves to update a digital map, such as a digital navigation map.
  • the updating device 100 has a detection unit 101, a communication unit 102, and an update unit 103.
  • the detection unit 101 includes a plurality of different sensors, such as a GPS unit 106, a temperature sensor 105, and an ESP system 104.
  • the communication unit 102 has an antenna 103, via which a wireless communication with a server (see reference numeral 203 in FIG. 2) can take place.
  • the updating unit 103 serves, on the one hand, to update the digital cards and, on the other hand, also to control the updating means.
  • An input unit 111 is connected to the update unit 103 or the controller 103.
  • Various settings of the update unit can be made via the input unit 111 and, for example, for a navigation unit, a destination and possibly also a location can be selected.
  • the input of the destination is, for example, by entering the full name of the destination or by selecting from a list that is displayed on an optical output unit, such as a monitor 109, possible.
  • the guidance information is also output.
  • the route guidance information can also be output via an acoustic output unit 110.
  • the acoustic output unit 110 can also output certain update data, such as warnings, transmitted by the control center.
  • the output via an acoustic output unit 110 has the advantage that the driver is less distracted from the current traffic situation.
  • the digital map data are stored in the form of data records. For example, additional information about traffic restrictions and the like are also stored in the memory element 112 and assigned to the data records.
  • the update device 100 has a navigation unit 106 with a GPS receiver that is designed to receive position signals from GPS satellites.
  • the navigation unit 106 with the GPS receiver can also be designed for other satellite navigation systems.
  • the device 100 for performing dead reckoning additionally has a direction sensor 107, a travel distance sensor 108 and possibly also a steering wheel angle sensor 114. Signals of the GPS receiver, the odometer sensor, the direction sensor and / or the steering wheel angle sensor are processed in the control device 103, for example. The vehicle position determined from these signals is compared to the road maps via map matching. The won
  • Destination guidance information is finally output via the monitor 109.
  • the data required to update the digital map is determined, for example, as follows:
  • the measured speed and the GPS position can be used to control the course of the road including its altitude profile. In this way it can be recognized whether, for example, there is a construction site or a traffic jam. For example, it can be recognized whether the vehicle is keeping the lane or leaving the road. In this way, a statement can be made as to whether the road indicated on the map coincides with the actual movement of the vehicle. If this is not the case, information about changed road guidance can be determined.
  • these environmental sensors can be used to measure the distances to other vehicles. In this way, statements about traffic flow and possible traffic jams can be made.
  • the environment sensors such as cameras or distance detectors
  • statements about the visibility, road conditions or weather conditions can be made.
  • the environmental sensors detect rain, fog, visibility and ambient temperatures.
  • - Lanes can be detected via cameras. The lanes are the area between two lane markers. In this way, a changed routing can be detected without the need for GPS data must be used.
  • interventions by the ABS anti-lock braking system
  • the ASR traction control system
  • the ESP possibly in combination with the GPS position and the current speed
  • the ABS anti-lock braking system
  • the ASR traction control system
  • the ESP possibly in combination with the GPS position and the current speed
  • an exact statement can be made about the actual road conditions.
  • a continuous update (update) of the present in the vehicle map (Safety Map) via a traffic data center which may also be a service provider.
  • the updater may trigger the transmission of the measurement data if it recognizes that a particular situation exists. For this purpose, for example, it compares the data of its current digital map with it the measurements of their sensors. As soon as there is a significant deviation, the corresponding measured values are sent to the control center, possibly in an already processed or filtered form. The central office can then respond by requesting further data from other vehicles, for example, to enable a statistical evaluation and to reduce the risk of a falsification of the actual situation due to a faulty measurement.
  • the system uses ABS and ESP data to detect that ice is prevailing at a point that has just passed.
  • the device sends this information situation-controlled to the traffic control center. This examines the data, for example, again for plausibility, trying to see if the same results from other vehicles were sent from this point. If this is the case, the control center sends out a warning for this position, so that a motor vehicle driver can adjust in time to this new, dangerous situation. That's the way a motorist can do it be warned of dangers such as ice, rain, fog, in time, which in turn helps to prevent serious accidents.
  • the digital map is updated in the respective addressed vehicles and the warning visualized or acoustically brought to the attention of the driver.
  • the evaluation of the different data during the journey provides information about traffic conditions, obstructions, road conditions (road surface), infrastructural conditions (serpentine), local hazards, precipitation, smoothness and slipping hazards.
  • locally determined in the vehicle measured variables are converted into a local, the environment of the vehicle traffic condition.
  • traffic information already available in the vehicle which is received, for example, via mobile radio or via the Radio Data System Traffic Message Channel (RDS-TMC)
  • the system determines whether the locally determined traffic state deviates from the state known in the traffic data center. Then, and only then, will a corresponding message be sent so that the communication traffic caused by the message is minimized.
  • FIG. 2 shows a schematic representation of an updating system with an updating device 100 and a control center 200.
  • the updating device 100 comprises the updating unit 103 with the corresponding sensors and other devices connected thereto, as well as a communication unit 102 for communicating with the center 200.
  • the updating device 100 is in a vehicle
  • the center 200 also includes a communication unit
  • the center 200 and the update device 100 communicate wirelessly via the radio transmission link 205.
  • FIG. 3 shows a section 301 from a digital map, which is a navigation map.
  • a road 302 which connects the two places 303 and 304 together.
  • a bypass 305 is shown to bypass the accident site 306.
  • a corresponding warning 309 is displayed.
  • an acoustic warning for example transmitted by TMC, can also take place.
  • the additional warning 307 warns in front of the accident site 306.
  • the black ice warning as well as the accident site knowledge is based on measurements made by vehicles that passed the corresponding section of the map at an earlier point in time and then transmitted their measurement data to the control center.
  • the head office has analyzed the measured data, statistically averaged and evaluated and then transmitted the corresponding warnings to the other vehicles.
  • the center has also transmitted update data regarding the new route 305.
  • step 401 the measurement values are recorded in the vehicle. These are compared in a next step 402 with the already existing data from eg a digital map and possible deviations are determined.
  • step 403 measurement data corresponding to the measured values or already preprocessed (eg deviations from already existing information) is transmitted to the control center.
  • step 404 prepares the central update data based on the measurement data, and in step 405, the central office transmits this update data to other vehicles.
  • step 406 updates the digital maps in the respective vehicles based on the transmitted and received update data.

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Educational Technology (AREA)
  • Educational Administration (AREA)
  • Mathematical Physics (AREA)
  • Databases & Information Systems (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Navigation (AREA)
  • Traffic Control Systems (AREA)

Abstract

Dans un mode de réalisation, l'invention concerne un dispositif de mise à jour pour la mise à jour d'une carte numérique destinée à un véhicule présentant une pluralité de capteurs mesurant la situation du trafic courante, le mouvement du véhicule et l'état de la route. Ces valeurs de mesure sont transmises à une centrale évaluant ces valeurs et envoyant des données de mise à jour correspondantes à d'autres véhicules pour la mise à jour de la carte numérique.
EP08736495A 2007-08-25 2008-04-23 Unité de mise à jour et procédé de mise à jour d'une carte numérique Withdrawn EP2195800A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007040188 2007-08-25
DE102008012661A DE102008012661A1 (de) 2007-08-25 2008-03-05 Aktualisierungseinheit und Verfahren zur Aktualisierung einer digitalen Karte
PCT/EP2008/054917 WO2009027122A1 (fr) 2007-08-25 2008-04-23 Unité de mise à jour et procédé de mise à jour d'une carte numérique

Publications (1)

Publication Number Publication Date
EP2195800A1 true EP2195800A1 (fr) 2010-06-16

Family

ID=40280333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08736495A Withdrawn EP2195800A1 (fr) 2007-08-25 2008-04-23 Unité de mise à jour et procédé de mise à jour d'une carte numérique

Country Status (4)

Country Link
US (1) US20110125401A1 (fr)
EP (1) EP2195800A1 (fr)
DE (1) DE102008012661A1 (fr)
WO (1) WO2009027122A1 (fr)

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