Vehicle information system
First Claim
1. A method for collecting traffic information comprising:
- enabling a plurality of in-vehicle systems each associated with a different vehicle to collect traffic related information during travel of the vehicles on a road network;
accepting information from a server computer system at one or more of the in-vehicle systems;
collecting traffic related information at each of the one or more in-vehicle systems according to the information accepted from the server computer system; and
delivering the collected information to the server computer system.
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Accused Products
Abstract
A vehicle information system which includes an in-vehicle system 105 and a centralized server system 120. The in-vehicle system communicates with the server system using a wireless communication link 110, such as over a cellular telephone system. A position system, such as a set of GPS satellites 140, provides positioning signals that are used by the in-vehicle systems, and optionally by the centralized server system to increase the accuracy of position estimates. In one version of the system, an operator specifies a destination to an in-vehicle system which validates the destination. The in-vehicle system transmits specification of the destination to a server system 125 at the centralized server. The server system computes a route to the destination and transmits the computed route to the in-vehicle system. The in-vehicle system guides the operator along the route. If the in-vehicle system detects that the vehicle has deviated from the planned route, it replans a new route to the destination using an in-vehicle map database.
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Citations
37 Claims
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1. A method for collecting traffic information comprising:
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enabling a plurality of in-vehicle systems each associated with a different vehicle to collect traffic related information during travel of the vehicles on a road network;
accepting information from a server computer system at one or more of the in-vehicle systems;
collecting traffic related information at each of the one or more in-vehicle systems according to the information accepted from the server computer system; and
delivering the collected information to the server computer system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. Software stored on computer-readable media comprising instructions for causing a computer system to:
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enable a plurality of in-vehicle systems each associated with a different vehicle to collect traffic related information during travel of the vehicles on a road network;
accept information from a server computer system at one or more of the in-vehicle systems;
collect traffic related information at each of the one or more in-vehicle systems according to the information accepted from the server computer; and
deliver the collected information to the server computer system.
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23. A system for collecting traffic information comprising:
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means for enabling a plurality of in-vehicle systems each associated with a different vehicle to collect traffic related information during travel of the vehicles on a road network;
means for accepting information from a server computer system at one or more of the in-vehicle systems;
means for collecting traffic related information at each of the one or more in-vehicle systems according to the information accepted from the server computer system; and
means for delivering the collected information to the server computer system.
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24. A method for collecting traffic information comprising:
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tracking the location of a vehicle, including detecting when the vehicle traverses each of a plurality of segments of a road network; and
for each detected segment, comparing the vehicle'"'"'s speed on the segment to a stored speed for that segment, and if the vehicle'"'"'s speed on the segment deviates from the stored speed, transmitting a traffic notification identifying that segment to a server.
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25. A method for collecting traffic information comprising:
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tracking the location of a vehicle, including detecting when the vehicle traverses each of a plurality of segments of a road network;
for each detected segment, logging traffic-related data, including data related to the vehicle'"'"'s speed on the detected segment; and
transmitting the logged data to a server. - View Dependent Claims (26, 27)
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28. A method for collecting traffic information comprising:
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tracking the location of a vehicle, including detecting when the vehicle traverses each of a plurality of segments of a road network; and
for each detected segment, comparing the vehicle'"'"'s speed on the segment to a stored speed for that segment, and if the vehicle'"'"'s speed on the segment deviates from the stored speed, transmitting a traffic notification identifying that segment to a server.
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29. A method for collecting traffic information comprising:
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receiving traffic related data from a plurality of vehicles;
updating a traffic database using the received traffic related data, including updating speed information associated with a plurality of road segments in a road network;
planning a route through the road network from a starting to a destination location using the speed information associated with the road segments. - View Dependent Claims (30, 31, 32)
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33. A method for providing traffic related information to a user comprising:
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accepting from the user a specification of a path made up of one or more road segments in a road network;
receiving traffic data related to road segments in the road network;
if the received traffic data indicates an exceptional traffic condition on the specified path, notifying the user of the traffic condition. - View Dependent Claims (34, 35, 36, 37)
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Specification