WO2022199901A1 - Verfahren zum aktualisieren von verkehrsinformationen eines fahrzeugs, computerlesbares medium, system, und fahrzeug - Google Patents
Verfahren zum aktualisieren von verkehrsinformationen eines fahrzeugs, computerlesbares medium, system, und fahrzeug Download PDFInfo
- Publication number
- WO2022199901A1 WO2022199901A1 PCT/EP2022/051373 EP2022051373W WO2022199901A1 WO 2022199901 A1 WO2022199901 A1 WO 2022199901A1 EP 2022051373 W EP2022051373 W EP 2022051373W WO 2022199901 A1 WO2022199901 A1 WO 2022199901A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- traffic information
- navigation map
- change
- road section
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000012800 visualization Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
- G08G1/096741—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where the source of the transmitted information selects which information to transmit to each vehicle
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
- G08G1/096775—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a central station
Definitions
- the invention relates to a method for updating traffic information for a vehicle.
- the invention further relates to a computer-readable medium for updating vehicle traffic information, a system for updating vehicle traffic information, and a vehicle comprising the system for updating vehicle traffic information.
- Traffic information often also referred to as Real Time Traffic Information, RTTI for short, is known from the prior art, which can be transmitted from a server to vehicles.
- Vehicles can send requests to a server to update traffic information.
- the server provides the traffic information to the vehicles in response to the vehicles' requests.
- the traffic information is often displayed as text messages and/or as a colored visualization integrated into a navigation map of the vehicles.
- the transmission of the traffic information involves a large amount of data of the traffic information transmitted from the server to the vehicles.
- an object of the invention to update traffic information of a vehicle more efficiently.
- an object of the invention is to provide traffic information to a vehicle more efficiently.
- the invention features a method for updating traffic information of a vehicle.
- the traffic information of the vehicle is preferably traffic information of a navigation map of the vehicle.
- the method can be a computer-implemented method and/or a controller-implemented method.
- the vehicle can be an automobile.
- the traffic information may include real-time traffic information and/or forecast, be future traffic information.
- the method includes receiving a request message for updating the traffic information of a navigation map of the vehicle from the vehicle by a vehicle-external server.
- the vehicle-external server can be a server of a cloud computing system.
- the off-board server can receive request messages from a variety of vehicles.
- a vehicle can transmit a request message for updating the traffic information of the navigation map to the vehicle-external server at predetermined regular, time intervals and/or based on events.
- the method also includes determining a change in traffic information for each road section of the navigation map by the vehicle-external server as a function of the request message from the vehicle.
- the method also includes determining a criticality value for the determined change in traffic information for each road section on the navigation map, determining a relevance value for the determined change in traffic information for each road section on the navigation map, and calculating a change volume in the traffic information on the navigation map as a function of the determined changes the traffic information, the determined criticality value, and the determined relevance value for all road sections of the navigation map.
- the method transmits a response message comprising the traffic information for the vehicle's navigation map from the vehicle-external server to the vehicle if the calculated volume of change exceeds a predetermined threshold value.
- the method includes updating the vehicle's traffic information as a function of the response message transmitted by the vehicle.
- the method can advantageously determine vehicle-specific traffic information and transmit it to the vehicle.
- the traffic information is only transmitted if a predetermined threshold value of a change volume of the traffic information is exceeded. This means that only traffic information that is of particular importance to the requesting vehicle is transmitted to the vehicle. Next only traffic information is transmitted, the total of changes are significant for the user of the vehicle.
- the method can consequently efficiently reduce the data volume of traffic information to be transmitted without negatively influencing the use of an updated navigation map for a vehicle user.
- the message for updating the traffic information of the vehicle can be received from the vehicle by a vehicle-external server after a vehicle or a control unit of the vehicle has been started, and/or the request message can include at least one identifier that is representative of a Is a navigation map of the vehicle up to date, and/or can the navigation map be specified by the at least one received identifier.
- the determination of the change in traffic information for each road section of the navigation map by the vehicle-external server as a function of the request message from the vehicle can determine a relative change in the traffic information for each road section of the navigation map between a time of a past request message from the vehicle and include a current time depending on the request message of the vehicle. This allows the traffic information to be changed efficiently in a vehicle-specific manner.
- the determination of a criticality value for the determined change in the traffic information for each road section of the navigation map can include determining a level of the determined change in the traffic information for each road section; determining a visualization change for the determined change in traffic information for each road segment; and determining the criticality value as a function of the determined visualization change and the level of the determined change in the traffic information for each road section.
- the determined change in the traffic information can be a change in the speed of vehicles on the road section.
- determining the relevance value for the determined change in traffic information for each road section of the navigation map determining a current position of the vehicle by the vehicle-external server, determining a region around the current position of the vehicle and/or a region around a current navigation route of the vehicle, and determining the relevance value for the determined change in the traffic information of a road section depending on the current position of the vehicle, the region around the current position of the vehicle, and/or the region around the current one Include navigation route of the vehicle.
- the method can also include transmission of a response message from the vehicle-external server to the vehicle.
- the response message may include an indication that the predetermined threshold has not been exceeded if the calculated volume of change does not exceed a predetermined threshold.
- the response message comprising the traffic information for the navigation map of the vehicle can be transmitted from the vehicle-external server to the vehicle using the Transport Protocol Experts Group, TPEG for short, and/or the traffic information for the navigation map can be transmitted by road section in the response message are transmitted, and / or the traffic information of several road sections can be combined in the response message. This allows traffic information to be efficiently transmitted to the vehicle.
- the invention features a computer-readable medium for updating traffic information of a vehicle, the computer-readable medium comprising instructions which, when executed on a computer and/or a control unit, execute the method described above.
- the invention is characterized by a system for updating traffic information of a vehicle, the system being designed to carry out the method described above.
- the invention is characterized by a vehicle comprising the system described above for updating traffic information of the vehicle. Further features of the invention result from the claims, the figures and the description of the figures. All features and feature combinations mentioned above in the description and the features and feature combinations mentioned below in the description of the figures and/or shown alone in the figures can be used not only in the combination specified, but also in other combinations or alone.
- 1 shows an exemplary method for updating traffic information of a
- FIG. 1 shows an exemplary method 100 for updating traffic information of a vehicle.
- the method 100 may update traffic information of a navigation map of the vehicle.
- the navigation map may include one or more predetermined parts.
- a portion of the navigation map may include a location, region, country, continent, and/or other geographic area.
- One or more parts of the navigation map can be stored on a navigation system of the vehicle.
- the method 100 can receive 102 a request message for updating the traffic information of a navigation map from the vehicle through a vehicle-external server.
- the request message can include a, preferably unique, identifier of the vehicle. Additionally or alternatively, the vehicle may include one or more identifiers of the navigation map and/or portions of the navigation map stored on the vehicle. Additionally or alternatively, the request message can include an indicator of how up-to-date the traffic information of the vehicle is.
- the vehicle-external server can store an update indicator for a vehicle, in particular an update indicator for each vehicle. The vehicle-external server can use the currency indicator to check which traffic information was transmitted to the vehicle when the traffic information was previously updated.
- the method 100 can also determine a change in traffic information for each road section of the navigation map by the vehicle-external server depending on the vehicle's request message 104.
- the vehicle-external server can, for example, use the identifier of the navigation map and/or the identifiers of the parts of the navigation map of the request message of the vehicle to determine the navigation map and/or parts of the navigation map for which the off-board server determines one or more changes in traffic information.
- the vehicle-external server preferably does not determine any traffic information for parts of the navigation map for which there are no identifiers in the request message of the vehicle.
- the vehicle-external server can determine the changes in the traffic information by road section, with the road sections being defined by the navigation map and/or parts of the navigation map.
- the vehicle-external server can determine a relative change in the traffic information for each road section of the navigation map between a point in time at a past request message from the vehicle and a current point in time as a function of the request message from the vehicle. In other words, the vehicle-external server can determine the changes in the traffic information for the vehicle that transmitted the request message to the server.
- the vehicle-external server can determine, for example, that the vehicles on the road section were driving at 40 km/h at the time of the previous request message and the current speed of the vehicles on the road section is 45 km/h.
- the method 100 can also determine 106 a criticality value for the determined change in the traffic information for each road section of the navigation map.
- the criticality value indicates how important the determined change in the traffic information is.
- the criticality value can be determined by one or more predefined rules and/or a predefined function as a function of a speed and/or a speed difference.
- a high speed difference for example a speed difference of +10 km/h or of -10 km/h, can be critical. Even a small speed difference of +2 km/h or -2 km/h, for example, can be critical if this speed difference means that the traffic information is made available to a user of the vehicle in a different way, for example if a visualization of the traffic information is in the The vehicle's navigation system changes, regarding an event a navigation route change, and/or an event relating to a navigation-related advisory or warning message to the user of the vehicle resulting therefrom. Smaller changes in speed, e.g. +2 km/h or -2 km/h, or moderate changes in speed, e.g. +5 km/h or -5 km/h, can be specified as less critical if there are no changes for the User of the vehicle resulting from it.
- the method 100 can determine 108 a relevance value for the determined change in the traffic information for each road section of the navigation map.
- the relevance value can be determined for the requesting vehicle.
- the relevance value for the vehicle can be determined as a function of a current position of the vehicle, a current navigation route and/or a historical driving profile of the vehicle.
- the relevance value is preferably higher the closer the ascertained change in traffic information is to the current position of the vehicle, the current navigation route, and/or the historical driving profile.
- an environment around the current position of the vehicle can be defined. If the change in traffic information is within the defined environment, then a high relevance value can be set. If the change in traffic information is outside the defined environment, a low relevance value can be set.
- the method 100 can calculate a change volume of the traffic information of the navigation map depending on the determined changes in the traffic information, the determined criticality value, and the determined relevance value for all road sections of the navigation map 110.
- the change volume can be calculated using the following example functions: where a and ß are weighting factors of the relevance value and the criticality value, respectively.
- the method 100 can transmit 112 a response message comprising the traffic information for the navigation map of the vehicle from the vehicle-external server to the vehicle if the calculated volume of change exceeds a predetermined threshold value. If the calculated volume of change does not exceed the specified threshold value, the method can transmit a response message from the vehicle-external server to the vehicle, including an indication that the specified threshold value has not been exceeded. Finally, the method 100 can update the traffic information of the vehicle depending on the response message transmitted by the vehicle 114.
- the method can provide vehicle-specific traffic information updates.
- the traffic information updates are provided to the vehicle only if the volume of changes, as an indicator of the importance of the traffic information changes to the vehicle, exceeds a predetermined threshold.
- the traffic information data to be transmitted can be efficiently reduced without a user of the vehicle having to do without the traffic information that is critical and relevant to him.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Navigation (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/550,042 US20240177598A1 (en) | 2021-03-26 | 2022-01-21 | Method for Updating Traffic Information Relating to a Vehicle, Computer-Readable Medium, System, and Vehicle |
CN202280015100.4A CN116868249A (zh) | 2021-03-26 | 2022-01-21 | 用于更新车辆的交通信息的方法、计算机可读的介质、系统和车辆 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021107717.6A DE102021107717A1 (de) | 2021-03-26 | 2021-03-26 | Verfahren zum Aktualisieren von Verkehrsinformationen eines Fahrzeugs, computerlesbares Medium, System, und Fahrzeug |
DE102021107717.6 | 2021-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022199901A1 true WO2022199901A1 (de) | 2022-09-29 |
Family
ID=80118949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/051373 WO2022199901A1 (de) | 2021-03-26 | 2022-01-21 | Verfahren zum aktualisieren von verkehrsinformationen eines fahrzeugs, computerlesbares medium, system, und fahrzeug |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240177598A1 (de) |
CN (1) | CN116868249A (de) |
DE (1) | DE102021107717A1 (de) |
WO (1) | WO2022199901A1 (de) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1953726A2 (de) * | 2007-01-26 | 2008-08-06 | Xanavi Informatics Corporation | Verfahren zur Verteilung von Verkehrsinformationen, Vorrichtung zur Verteilung von Verkehrsinformationen und Endgerät zum Einbau in ein Fahrzeug |
DE102012212815A1 (de) * | 2012-07-20 | 2014-05-22 | Continental Automotive Gmbh | Verfahren zur Auswahl und Aufbereitung von Verkehrsinformationen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10110549B4 (de) | 2001-03-05 | 2007-12-27 | Daimlerchrysler Ag | Verkehrsinformationssystem für Fahrzeuge auf einem Verkehrswegenetz |
DE102009037087A1 (de) | 2009-08-11 | 2011-02-17 | Bayerische Motoren Werke Aktiengesellschaft | Übertragung bzw. Verarbeiten einer Verkehrsinformation |
US9863777B2 (en) | 2013-02-25 | 2018-01-09 | Ford Global Technologies, Llc | Method and apparatus for automatic estimated time of arrival calculation and provision |
-
2021
- 2021-03-26 DE DE102021107717.6A patent/DE102021107717A1/de active Pending
-
2022
- 2022-01-21 CN CN202280015100.4A patent/CN116868249A/zh active Pending
- 2022-01-21 WO PCT/EP2022/051373 patent/WO2022199901A1/de active Application Filing
- 2022-01-21 US US18/550,042 patent/US20240177598A1/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1953726A2 (de) * | 2007-01-26 | 2008-08-06 | Xanavi Informatics Corporation | Verfahren zur Verteilung von Verkehrsinformationen, Vorrichtung zur Verteilung von Verkehrsinformationen und Endgerät zum Einbau in ein Fahrzeug |
DE102012212815A1 (de) * | 2012-07-20 | 2014-05-22 | Continental Automotive Gmbh | Verfahren zur Auswahl und Aufbereitung von Verkehrsinformationen |
Also Published As
Publication number | Publication date |
---|---|
CN116868249A (zh) | 2023-10-10 |
DE102021107717A1 (de) | 2022-09-29 |
US20240177598A1 (en) | 2024-05-30 |
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