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Train separation detection

  • US 5,813,635 A
  • Filed: 11/26/1997
  • Issued: 09/29/1998
  • Est. Priority Date: 02/13/1997
  • Status: Expired due to Term
First Claim
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1. A railroad train separation detector comprising:

  • a first communication and control unit in a locomotive of the railroad train, said first communication and control unit including a first microprocessor control circuit and a first transceiver, the first microprocessor control circuit periodically computing speed for the locomotive and the first transceiver transmitting and receiving messages to and from remote units in the train;

    a second communication and control unit in a remote unit of the railroad train, the second communication and control unit including a second microprocessor control circuit and a second transceiver, the second microprocessor control circuit periodically computing speed for the remote unit; and

    means at one of the first and second communication and control units for comparing speed computed by the first and second microprocessor units and, if the comparison is not within predetermined limits, declaring a train separation.

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