Navigation-assistance method and device for a vehicle driver
First Claim
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1. A method for the destination guidance assistance of a vehicle driver, to whom instructions are issued, comprising the steps of:
- deriving instructions for a vehicle driver from a comparison of information which defines predetermined route guide point locations with information which defines actual vehicle locations;
comparing variables describing the predetermined route guide point locations to variables obtained from predetermined vehicle locations to obtain information representing individual probabilities of a false trip;
and logically interlinking and comparing the individual false trip probabilities to a threshold value, or summing the individual false trip probabilities and comparing the summed value to a threshold value.
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Abstract
The invention concerns a navigation-assistance method and a device for a vehicle driver, to which instructions obtained by comparing the itinerary predetermined by course-guiding points with every established position of the vehicle are given. The information to be passed on to the driver concerning deviations from the predetermined itinerary are controlled continuously or almost continuously by comparing the deviation variables from the predetermined itinerary with the variables obtained regarding the established positions of the vehicle.
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17 Claims
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1. A method for the destination guidance assistance of a vehicle driver, to whom instructions are issued, comprising the steps of:
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deriving instructions for a vehicle driver from a comparison of information which defines predetermined route guide point locations with information which defines actual vehicle locations;
comparing variables describing the predetermined route guide point locations to variables obtained from predetermined vehicle locations to obtain information representing individual probabilities of a false trip;
and logically interlinking and comparing the individual false trip probabilities to a threshold value, or summing the individual false trip probabilities and comparing the summed value to a threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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- 10. A device for the destination guidance assistance of a vehicle driver, to whom instructions are issued comprising a computer 6 connected to at least a position sensor 7, a road map 5, a memory 10 and input and display devices 8, 9 wherein the computer 6 is programmed to derive instructions for a vehicle driver from a comparison of information which defines predetermined route guide point locations with information which defines actual vehicle locations and to compare variables describing the predetermined route guide point locations to variables obtained from determined vehicle locations to obtain information representing individual probabilities of a false trip and logically interlinking and comparing the individual false trip probabilities to a threshold value, or summing the individual false trip probabilities and comparing the summed value to a threshold value.
Specification