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GPS-based anti-collision warning system

  • US 5,325,302 A
  • Filed: 09/23/1991
  • Issued: 06/28/1994
  • Est. Priority Date: 10/15/1990
  • Status: Expired due to Term
First Claim
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1. A warning system for predicting collision between two or more relatively moving objects, said system comprising:

  • GPS receiver means for receiving accurate timing data from a fixed frame of reference,position determination means connected to the GPS receiver means and operable for determining at a predetermined frequency for each one of said moving objects a respective location in space relative to said fixed frame of reference so as to produce successive frames of positional data for each object,memory means coupled to the position determination means for storing therein the successive frames of positional data,transceiver means on each of said moving objects for transmitting the successive frames of positional data form each one of said moving objects to each of the other ones of said moving objects, and for receiving the successive frames of positional data from each one of the other of said moving objects,path analysis means coupled to the memory means and the transceiver means, and responsive to the successive frames of positional data of each of the moving objects for computing a trajectory for each object relative to the fixed frame of reference,intersection analysis means coupled to the path analysis means and responsive to each one of the computed trajectories for predicting whether two or more trajectories will intersect, andwarning means coupled to the intersection analysis means for warning respective ones of said objects of an impending collision.

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