Vehicle routing and guidance system
First Claim
1. A vehicle routing and guidance system comprisinga vehicle-based navigation system (35) located in a vehicle, said navigation system (35) including an input device (38) for entry of at least one destination (B) to which the vehicle is to travel and a self-locating means for determining location of the vehicle, a central server (12) located outside of said vehicle for making navigational information available to the navigation system, said central server including means for calculating a route (16) to said at least one destination (B) and means for dividing the route (16) into route sections (34), and transmitter and receiver means for at least temporarily establishing communication between the central server (12) and the navigation system (35), said transmitter and said receiver means including means for transmitting said route sections (34) individually and separately to said navigation system (35) so that said route (16) is transmitted in a piecewise manner to said navigation system.
1 Assignment
0 Petitions
Accused Products
Abstract
The vehicle routing and guidance system includes a vehicle-based navigation system (35) located in a vehicle, which includes an input device (38) for entry of one or more destinations (B) to which the vehicle is to travel and a self-locating device for determining location of the vehicle, a central server 12 located outside of the vehicle for making navigational information available to the navigation system, for determining a route (16) to the destination or destinations (B) provided to the navigation system and for dividing the route (16) piecewise into route sections (34), and transmitter and receiver devices for at least temporarily establishing communication between the central server (12) and the navigation system (35) to transmit the route sections (34) separately to the navigation system (35) so that the route (16) is transmitted in a piecewise manner to the navigation system (35).
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Citations
18 Claims
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1. A vehicle routing and guidance system comprising
a vehicle-based navigation system (35) located in a vehicle, said navigation system (35) including an input device (38) for entry of at least one destination (B) to which the vehicle is to travel and a self-locating means for determining location of the vehicle, a central server (12) located outside of said vehicle for making navigational information available to the navigation system, said central server including means for calculating a route (16) to said at least one destination (B) and means for dividing the route (16) into route sections (34), and transmitter and receiver means for at least temporarily establishing communication between the central server (12) and the navigation system (35), said transmitter and said receiver means including means for transmitting said route sections (34) individually and separately to said navigation system (35) so that said route (16) is transmitted in a piecewise manner to said navigation system.
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9. A vehicle routing and guidance system comprising
a vehicle-based navigation system (35) located in the vehicle, a central server (12) located outside of said vehicle for making navigational information available to the navigation system, said central server including means for calculating an updated route (16) to at least one predetermined destination (B) and means for establishing a communication link (14) between the navigation system (35) and the central server (12) prior to start of travel of the vehicle for transmission of said updated route (16) for vehicle travel to the at least one predetermined destination (B) from the central server (12) to the navigation system (35), and transmitter and receiver means for at least temporarily establishing communication between the central server (12) and the navigation system (35).
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18. A vehicle routing and guidance system comprising
a vehicle-based navigation system (35) located in a vehicle, said navigation system (35) including an input device (38) for entry of at least one destination (B) to which the vehicle is to travel, means for informing a driver of the vehicle of a calculated route (16) to said at least one destination (B) and a self-locating means for determining a location of the vehicle; -
a central server (12) located outside of said vehicle, said central server including means for calculating said calculated route (16) to said at least one destination (B), means for dividing said calculated route (16) into separate route sections (34), means for selecting individual ones of said route sections (34) one after the other for transmission to said vehicle according to said location of said vehicle during travel to said at least one destination (B) and means for recalculating remaining ones of said route sections (34) over which said vehicle has not traveled during travel to said at least one destination according to updated traffic information supplied to said central server (12); and
transmitter and receiver means for at least temporarily establishing communication between the central server (12) and the navigation system (35), said transmitter and said receiver means including means for transmitting said route sections (34) individually and separately to said navigation system so that said calculated route is transmitted in a piecewise manner to said navigation system.
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Specification