Motor vehicle navigation system that receives route information from a central unit
First Claim
1. A method of calculating a route for a vehicle between an instantaneous location and a destination location, comprising:
- determining an instantaneous location of the vehicle and a destination location of the vehicle, to produce current route data;
transmitting said current route data over a wireless communication network to a central unit;
receiving traffic information from the central unit over the wireless communication network;
processing said traffic information and said current route data to calculate processed route data indicative of a route between the instantaneous and destination locations of the vehicle; and
providing said processed route data to a driver of the vehicle.
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Accused Products
Abstract
Data indicative of an instantaneous location, a destination and a route from the instantaneous location to the destination are transmitted from a motor vehicle navigation unit to a central unit. Traffic information about the route between the instantaneous location and the destination are transmitted from the control unit to the vehicle unit. The received traffic information data are used by the vehicle unit to determine a desirable route between the instantaneous location and the destination given the traffic information. The data of the route thus determined are made available to the vehicle driver, so that he is able to steer toward his desired destination along this specified route.
93 Citations
13 Claims
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1. A method of calculating a route for a vehicle between an instantaneous location and a destination location, comprising:
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determining an instantaneous location of the vehicle and a destination location of the vehicle, to produce current route data;
transmitting said current route data over a wireless communication network to a central unit;
receiving traffic information from the central unit over the wireless communication network;
processing said traffic information and said current route data to calculate processed route data indicative of a route between the instantaneous and destination locations of the vehicle; and
providing said processed route data to a driver of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A motor vehicle navigation system that receives route information from a central unit over a wireless communication network, said navigation system comprising:
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means for determining instantaneous location data of the motor vehicle, and for determining a destination location of the vehicle, to produce current route data;
a wireless transmitter that transmits said current route data over the wireless communication network to the central unit;
a receiver that receives traffic information from the central unit over the wireless communication network;
means for processing said traffic information and said current route data to calculate processed route data indicative of a route between the instantaneous and destination locations of the vehicle;
means for providing said processed route data to a driver of the vehicle; and
means for monitoring the progress of the vehicle along said route, and for transmitting traffic information data indicative of the progress of the vehicle along said route over the wireless communication network to the central unit. - View Dependent Claims (11, 12)
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13. A motor vehicle navigation system that receives route information from a central unit over a wireless communication network, said navigation system comprising:
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a motor vehicle navigation unit that calculates route data indicative of route between an initial location of a motor vehicle and a destination location of the vehicle;
means for providing said route data to a driver of the vehicle; and
means for regularly monitoring the progress of the vehicle along the route, and for automatically transmitting local traffic information data indicative of the progress of the vehicle along said route over the wireless communication network to the central unit in response to detecting a traffic jam;
a receiver that receives route traffic information from the central unit over the wireless communication network; and
means for automatically calculating an updated route between a current location of the motor vehicle and the destination location, and for transmitting said updated route to said means for providing for presentation to the driver of the vehicle.
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Specification