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Safety vehicle and system for avoiding train collisions and derailments

  • US 6,831,573 B2
  • Filed: 10/15/2002
  • Issued: 12/14/2004
  • Est. Priority Date: 10/15/2002
  • Status: Expired due to Fees
First Claim
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1. A system for preventing train accidents, said system comprising:

  • a train disposed on a railway, said train including a computer, a first GPS unit and a status receiver;

    a safety vehicle disposed ahead of said train on said railway, said safety vehicle including a second GPS unit and a status transmitter, wherein;

    said first GPS unit is adapted to continuously receive first location information associated with said train and is adapted to continuously transmit said first location information to said computer;

    said second GPS unit is adapted to continuously receive second location information associated with said safety vehicle and is adapted to continuously transmit said second location information to said computer;

    said status transmitter is adapted to transmit a status signal to said status receiver, and said status receiver is in communication with said computer;

    said computer is adapted to continuously calculate a location of said train based on said first location information and is adapted to continuously calculate a location of said safety vehicle based on said second location information;

    said computer is adapted to generate commands controlling at least one of acceleration and deceleration of said train or said safety vehicle in order to maintain a desired distance between said train and said safety vehicle; and

    said computer is adapted to detect said status signal and is adapted to generate a command to stop said train if said computer fails to detect said status signal.

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