Road information communicating system
First Claim
Patent Images
1. A road information communicating system for communication with vehicles comprising:
- a central communication system; and
, a plurality of distributed information processing units connected to said central communication system via a network, wherein each said distributed information processing unit comprises;
(1) a sensor means for receiving local road information regarding a road located within a local transmission area surrounding said sensor means;
(2) a means for computing local coordinates corresponding to said local road information;
(3) a means for relaying said local road information and said local coordinates over said network to said central communication system;
(4) a means for receiving remote road information and corresponding remote coordinates regarding a road located outside said local transmission area from said central communication system;
(5) a means for determining vehicle coordinates of said vehicles that are located within said local transmission area, the distance between each said vehicle coordinates and each said local coordinates, and the distance between each said vehicle coordinates and each said remote coordinates;
(6) a means for prioritizing said local road information and said remote road information based on said distances;
(7) a means for selecting a subset of said prioritized data for transmission to a vehicle located within said transmission area; and
, (8) a means for relaying said subset of said prioritized data to said vehicle.
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Abstract
A road information communicating system is provided in which a central communication system communicates with vehicles using a network of distributed information processing units. Each of these distributed information processing units is able to receive local road information and compute a set of local coordinates corresponding to that local road information. It is then able to relay that information to the central unit and receive like information from other distributed units. The information is then prioritized, and a subset of that prioritized data is selected and transmitted to vehicles in the coverage area.
140 Citations
4 Claims
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1. A road information communicating system for communication with vehicles comprising:
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a central communication system; and
,a plurality of distributed information processing units connected to said central communication system via a network, wherein each said distributed information processing unit comprises;
(1) a sensor means for receiving local road information regarding a road located within a local transmission area surrounding said sensor means;
(2) a means for computing local coordinates corresponding to said local road information;
(3) a means for relaying said local road information and said local coordinates over said network to said central communication system;
(4) a means for receiving remote road information and corresponding remote coordinates regarding a road located outside said local transmission area from said central communication system;
(5) a means for determining vehicle coordinates of said vehicles that are located within said local transmission area, the distance between each said vehicle coordinates and each said local coordinates, and the distance between each said vehicle coordinates and each said remote coordinates;
(6) a means for prioritizing said local road information and said remote road information based on said distances;
(7) a means for selecting a subset of said prioritized data for transmission to a vehicle located within said transmission area; and
,(8) a means for relaying said subset of said prioritized data to said vehicle. - View Dependent Claims (2, 3, 4)
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Specification