EP2433096A1 - Dispositif et procédé d'affectation de nouvelles données à une carte numérique - Google Patents

Dispositif et procédé d'affectation de nouvelles données à une carte numérique

Info

Publication number
EP2433096A1
EP2433096A1 EP10720603A EP10720603A EP2433096A1 EP 2433096 A1 EP2433096 A1 EP 2433096A1 EP 10720603 A EP10720603 A EP 10720603A EP 10720603 A EP10720603 A EP 10720603A EP 2433096 A1 EP2433096 A1 EP 2433096A1
Authority
EP
European Patent Office
Prior art keywords
vehicle
new data
digital map
data value
data values
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Withdrawn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
EP10720603A
Other languages
German (de)
English (en)
Inventor
Ulrich STÄHLIN
Thomas Grotendorst
Anselm Keil
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 EP2433096A1 publication Critical patent/EP2433096A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01C21/3859—Differential updating map data
    • 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
    • G01C21/3807—Creation or updating of map data characterised by the type of data
    • G01C21/3815—Road data
    • 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
    • G01C21/3841—Data obtained from two or more sources, e.g. probe vehicles
    • 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
    • G01C21/3844—Data obtained from position sensors only, e.g. from inertial navigation
    • 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
    • G01C21/3893—Transmission of map data from distributed sources, e.g. from roadside stations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • 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
    • G09B29/003—Maps
    • G09B29/004—Map manufacture or repair; Tear or ink or water resistant maps; Long-life maps

Definitions

  • the present invention relates to a method for the assignment of new data to a preferably present in a vehicle digital map and a corresponding device.
  • C2X Modern vehicle-to-vehicle communication and vehicle-to-infrastructure communication (collectively referred to as C2X below) is often designed to operate without digital map material in the particular vehicle. In many cases, however, vehicles additionally use digital map material to improve C2X functions, or digital maps are available for driver assistance systems and / or safety systems in the vehicle.
  • the aim is to improve the digital map material and thus the reliability of driver assistance systems and safety systems in the vehicle.
  • an evaluation module for the evaluation of data of a digital map for a vehicle is known, which is based on measurement data of a Um- Field sensor system of the vehicle and / or evaluated on the basis of a card's own quality information data of the digital map and the evaluation then transmits to a driver assistance system or a safety system of the vehicle. These systems then use the data of the digital map based on the rating.
  • a driver assistance system for a vehicle which carries out associated operations on the basis of a calculated map reliability degree.
  • the map reliability degree indicates the accuracy of map data in the vicinity of the current position of the vehicle.
  • the map reliability level is determined by means of a complicated formula over the adjacent positions of the vehicle. This takes into account the positioning accuracy of the map data for the position of the vehicle, the change of data after a lapse of time, and the ratio of the coincidence of map information to the actual data.
  • the known devices or methods allow only an evaluation of the data of existing digital cards.
  • the conventional methods compellingly presuppose the existence of a digital map and / or a local or global navigation system in order in each case to make a corresponding local determination of the instantaneous position with respect to the digital map present in the vehicle.
  • the object of the present invention is therefore to propose a possibility so that digital map material is created or improved in the situations described above.
  • At least one new data value is received by a transmitter, which element is a vehicle-to-vehicle communication and / or a vehicle-to-infrastructure communication, the new data value with the existing data values of the digital Card is added and the new data value is added to the digital map or the existing data value is updated by the new data value, depending on the result of the comparison.
  • data resulting from C2X communication of the respective vehicle is used for the improvement and creation of digital map material.
  • the digital map material is present only locally in the respective vehicle.
  • the procedure according to the invention is a particularly simple way of providing digital cards, in particular for a specific purpose. to create or update the area frequented by the vehicle or for remote areas. This does not necessarily require a local or global navigation system. Included in the method according to the invention is the recreation of a digital map based on the data transmitted via vehicle-to-vehicle and / or vehicle-to-infrastructure communication.
  • the inventive method for assigning new data to a digital map represents a first step towards a self-learning or self-correcting digital map.
  • digital map in addition to maps in digital form for a local or global navigation system and maps for advanced driver assistance systems (ADAS, Advanced Driver Assistance Systems) understood without a navigation takes place.
  • Global navigation systems are often satellite navigation systems such as GPS, Galileo, GLONASS ( Russia), Compass (China), IRNSS (India), etc.
  • the vehicle is, for example, a motor vehicle, such as a car, bus or truck, or else a rail vehicle, a ship, an aircraft, such as a helicopter or airplane, or, for example, a bicycle.
  • the transmitters are integrated in traffic guidance devices, for example traffic lights, traffic signs, display panels, or the like.
  • traffic guidance devices for example traffic lights, traffic signs, display panels, or the like.
  • the data values include the positions of the vehicles or the elements of the vehicle-to-infrastructure communication, preferably including preceding positions (eg pearl chains), the type of vehicles or the elements of the vehicle-to-infrastructure communication, Friction coefficients of the road surface or the ground, speeds of the vehicles or other characteristics of the vehicles or the elements of the vehicle-to-infrastructure communication, for example the information of the traffic sign. This information is especially useful for creating or updating digital maps.
  • preceding positions eg pearl chains
  • Friction coefficients of the road surface or the ground Friction coefficients of the road surface or the ground
  • speeds of the vehicles or other characteristics of the vehicles or the elements of the vehicle-to-infrastructure communication for example the information of the traffic sign. This information is especially useful for creating or updating digital maps.
  • the comparison of the new data value with the existing data values of the digital map involves checking whether existing data values already corresponding to the new data value are contained in the digital map, and then, if corresponding existing data values in the digital map The new data value is compared to one or more of the values of the corresponding existing data.
  • This is a particularly simple method of enabling a comparison of the new data value with the existing data values of the digital map and avoiding computational errors due to lack of map information or incorrect map information.
  • the comparison for example, road courses, speed restrictions, traffic light positions, etc. are compared with existing data values.
  • an evaluation of the existing data values of the digital map and / or of the new data value is additionally performed on the basis of the result of the comparison of the new data value with the existing data values of the digital map.
  • the evaluation of one or more data values of a portion of the digital map involves a reliability estimate of the data value or data values, which is preferably stored for the respective data value and / or the respective part of the digital map. For reliability estimation, e.g. Determines how often the corresponding existing data values have already been confirmed by C2X data and / or when the last confirmation has taken place.
  • the evaluation of the data includes, for example, the determination of information on the quality and / or validity of the data. This makes it possible to use the evaluation of the digital map data in further applications and, for example, to pass it on to a driver assistance system and / or a safety system of the vehicle for further use. Since the different driver assistance systems and the various safety systems of the vehicle set different standards for the reliability of the data and, for example, require a different accuracy of the map data, the data based on the evaluation can be used optimally for the respective driver assistance system or safety system. In fact, in the past, it has often been assumed in such systems that the quality of the data of the digital map is low.
  • the data of the digital map can be used, for example, to varying degrees depending on the respective rating for a driver assistance system or a security system.
  • a driver assistance system or a security system of the vehicle can either or only to a limited extent disclose information from the digital map (eg, if higher actuality or accuracy of the data is required for the application) in the calculations of the driver assistance system or safety system.
  • a validation of the data can be performed.
  • validation is meant that it is determined whether the map data at all agree with the current data. This is advantageously done by a simple comparison between the new C2X data value and the data values present in the digital map, with deviations below a pre-definable threshold being interpreted as inaccuracies and not as errors.
  • accuracy values are determined. This is advantageously done by calculating the difference between the new C2X data value and that present in the digital map Data values.
  • the timeliness of the map data can be specified and stored, for example, by preferably assigning a timestamp information to each data value, wherein the timestamp contains the date of the last update of the data and possibly also the corresponding time.
  • the evaluation of the data could also include authentication of the data. Such authentication can be done, for example, by reading a corresponding certificate with which the digital card is provided.
  • a device for assigning new data to a digital map preferably present locally in a vehicle comprising:
  • a receiving device for receiving at least one new data value from a transmitter, which element is a vehicle-to-vehicle communication and / or a vehicle-to-infrastructure communication, and
  • a computing device which compares the new data value with the existing data values of the digital map and adds the new data value to the digital map or updates the existing data values with the new data value, depending on the result of the comparison.
  • the receiving device and the calculating device are each designed such that they can carry out the steps specified above for the method, including the steps of the exemplary embodiments.
  • the vehicle-to-vehicle and / or vehicle-to-infrastructure communication preferably takes place by means of wireless radio transmission, in particular by means of WLAN or by means of passive or optionally also active transponders, in particular RFID chips.
  • communication via radio channels, such as UMTS, is possible. If necessary, transmission methods can also be combined, for example in order to distinguish between a first and a second data value when driving on a road.
  • Fig. 1 is a flowchart of a first embodiment of the present invention.
  • Fig. 2 shows a device according to the invention for the assignment of new data to a digital map.
  • a receiving device 12 receives a device 10 for assigning new data to a digital map locally present in a vehicle (not shown) in a first step 1 position data from motor vehicles.
  • This new data may be, for example, the last positions (pearl necklace) of a vehicle or a number of vehicles.
  • the transmitter 20 transmitting the new data is preferably integrated in a traffic light or traffic sign or other vehicle.
  • a calculation device 14 of the device 10 determines in a step 2 of the method according to the invention whether there is a road in the region of the position data of the motor vehicles in the digital map.
  • the digital map is stored in a data memory of the computing device 14.
  • the new data values are compared with the existing data of the digital map to the course of the road by the computing device 14 in a subsequent step 3. It is found that the course of the road has changed slightly compared to the information contained in the digital map, for example, by a construction measure. Accordingly, in step 4, the computing device 14 updates the data including the position of the road in the digital map by the position data of the vehicles.
  • step 2 If it turns out in step 2 that the position data of the vehicles do not correspond to a course of a road, the new data in step 5 are replaced by the calculation device 14 is added to the digital map as a course of a new road.
  • the new or updated data of the course of the road is also assigned a time stamp which corresponds to the date of the update by the computing device 14 in the step 4 or in the step 5.
  • the driver or a driver assistance system or a safety system of the respective vehicle can recognize that it is comparatively current data.
  • the updated data is new, it is also more commonly used by a driver assistance system or safety system in the vehicle.
  • the corresponding data is transmitted to the driver assistance system or vehicle safety system including time stamps, so that the systems know how current the transmitted data is.
  • Step 4 is therefore not performed.
  • the current date is assigned as a time stamp by the computing device 14 to the existing data of the road course, since the timeliness of the existing data has been confirmed by the method according to the invention.
  • the inventive method can after step 4, 5 or 6 with step 1, ie the receiving of new data means vehicle-to-vehicle communication and / or vehicle-to-infrastructure communication.

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)
  • Educational Technology (AREA)
  • Educational Administration (AREA)
  • Business, Economics & Management (AREA)
  • Mathematical Physics (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Traffic Control Systems (AREA)
  • Navigation (AREA)

Abstract

La présente invention concerne un procédé d'affectation de nouvelles données à une carte numérique située de préférence localement dans un véhicule, ledit procédé comprenant les étapes consistant à recevoir au moins une nouvelle valeur de donnée provenant d'un émetteur qui fait partie d'une communication véhicule-véhicule et/ou d'une communication véhicule-infrastructure; à comparer la nouvelle valeur de donnée aux valeurs de donnée présentes de la carte numérique et à ajouter la nouvelle valeur de donnée à la carte numérique ou à actualiser les valeurs de donnée présentes avec la nouvelle valeur de donnée, et ce en fonction du résultat de la comparaison. Ledit procédé sert à améliorer le matériel numérique de la carte. L'invention concerne en outre un dispositif destiné à affecter de nouvelles données et comprenant un dispositif de réception et un dispositif de calcul.
EP10720603A 2009-05-20 2010-05-18 Dispositif et procédé d'affectation de nouvelles données à une carte numérique Withdrawn EP2433096A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009003299 2009-05-20
PCT/EP2010/056807 WO2010133586A1 (fr) 2009-05-20 2010-05-18 Dispositif et procédé d'affectation de nouvelles données à une carte numérique

Publications (1)

Publication Number Publication Date
EP2433096A1 true EP2433096A1 (fr) 2012-03-28

Family

ID=42556670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10720603A Withdrawn EP2433096A1 (fr) 2009-05-20 2010-05-18 Dispositif et procédé d'affectation de nouvelles données à une carte numérique

Country Status (5)

Country Link
US (1) US9541408B2 (fr)
EP (1) EP2433096A1 (fr)
KR (1) KR101814374B1 (fr)
DE (1) DE102010029073A1 (fr)
WO (1) WO2010133586A1 (fr)

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Also Published As

Publication number Publication date
KR101814374B1 (ko) 2018-01-30
US20120131084A1 (en) 2012-05-24
US9541408B2 (en) 2017-01-10
KR20120026097A (ko) 2012-03-16
DE102010029073A1 (de) 2010-11-25
WO2010133586A1 (fr) 2010-11-25

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