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Intra-vehicle information conveyance system and method

  • US 8,255,144 B2
  • Filed: 10/18/2007
  • Issued: 08/28/2012
  • Est. Priority Date: 10/22/1997
  • Status: Expired due to Term
First Claim
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1. An accident avoidance system using an infrastructure system to convey position information between vehicles, comprising:

  • a receiver associated with the infrastructure system for receiving vehicle position information acquired onboard position-reporting vehicles and transmitted from the position-reporting vehicles in a vicinity around the infrastructure system, the receiver being located apart from the vehicles;

    a transmitter coupled to the receiver and fixed at a ground-based station for transmitting to the vehicles in a vicinity of the ground-based station at least a portion of the vehicle position information indicating locations of position reporting vehicles received by the receiver, the transmitter being located apart from the vehicles, the ground-based station being part of the infrastructure system;

    an accident risk warning system for alerting an operator of a first vehicle of a risk of an accident involving the first vehicle based on the vehicle position information for the first vehicle and map data representing a roadway that the first vehicle is approaching or traveling on including edges or lane boundaries of the roadway; and

    an active position determining system associated with the infrastructure system for acquiring vehicle position information for non-position-reporting vehicles in the vicinity;

    wherein the transmitter fixed at the ground-based station is further configured for transmitting position information indicating locations of at least a portion of the non-position reporting vehicles acquired by the active position determining system.

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