METHOD FOR CODING TRAFFIC MESSAGES ON THE BASIS OF TRAVEL DIRECTION AND FOR TAKING THEM INTO ACCOUNT IN THE ROUTE CALCULATION
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Abstract
In a method for coding traffic messages on the basis of travel direction and for taking them into account in the route calculation using a navigation system, to further provide detection of the location of traffic disruptions while taking into account the direction of travel, a stretch of road made up of segments is coded, and an item of digital information is added to the coded stretch of road, which indicates that the traffic message is to be used only if all segments of the coded stretch of road are part of a travel route. In the process, the coded stretch of road is decoded and the digital information is evaluated in a navigation device.
8 Citations
19 Claims
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1-10. -10. (canceled)
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11. A method for coding road information on the basis of a travel direction and calculating a travel route at least partially based on the coded traffic information using a navigation system of a vehicle, comprising:
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a) coding information regarding a stretch of road having a plurality of segments and corresponding to a driving maneuver; b) additionally coding an item of digital information indicating that the information coded in step a) is to be used only if all segments of the stretch of road coded are actually part of a travel route; c) communicating the coded information regarding the stretch of road via a traffic message; d) decoding the coded information regarding the stretch of road; and e) evaluating the decoded information in a navigation device to calculate the travel route. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A vehicle navigation system, comprising:
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a digital map; and a control unit configured to perform, in conjunction with the digital map, a method for coding road information on the basis of a travel direction and calculating a travel route at least partially based on the coded traffic information, the method including; a) coding information regarding a stretch of road having a plurality of segments and corresponding to a driving maneuver; b) additionally coding an item of digital information indicating that the information coded in step a) is to be used only if all segments of the stretch of road coded are actually part of a travel route; c) communicating the coded information regarding the stretch of road via a traffic message; d) decoding the coded information regarding the stretch of road; and e) evaluating the decoded information in a navigation device to calculate the travel route.
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Specification