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Fault monitoring and reporting system for trains

  • US 4,041,470 A
  • Filed: 01/16/1976
  • Issued: 08/09/1977
  • Est. Priority Date: 01/16/1976
  • Status: Expired due to Term
First Claim
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1. A monitoring and reporting system for use on a vehicle having a plurality of interconnected cars including a lead car and at least one other car, comprisingsensor means in each of said cars for monitoring a plurality of physical conditions in said cars and for altering circuit conditions to represent the state of said physical conditions;

  • means in each of said cars connected to said sensor means in the same car for repetitively and sequentially detecting each of said circuit conditions and for producing a digitial signal having a value representative of the state of each physical condition;

    means in each of said cars for evaluating said digital signals in accordance with predetermined criteria to produce and repetitively update a set of second digital signals having values representative of the existence or nonexistence of faults in said physical conditions;

    first memory means in each of said cars for storing said set of second digital signals;

    circuit means interconnecting said cars for transmission of digital signals;

    logic means in said lead car for repetitively and sequentially sending interrogation signals individually to said first memory means in each of said cars, including said lead car, to determine the existence of faults;

    means in each of said cars responsive to said interrogation signals for transmitting status signals representative of said second digital signals to said lead car to provide fault information to said lead car; and

    display means in said lead car for receiving and storing said status signals and for providing a visual display of fault conditions reported in said status signals.

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