Systems and methods for monitoring and controlling tractor/trailer vehicle systems

  • US 7,059,689 B2
  • Filed: 10/01/2004
  • Issued: 06/13/2006
  • Est. Priority Date: 11/09/1995
  • Status: Expired due to Fees
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First Claim
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1. A method of remotely monitoring a subsystem positioned on a vehicle that produces a data signal representing a status of the subsystem and a power bus which distributes electrical power to the vehicle, the method comprising the steps of:

  • producing a data communications signal from the data signal;

    modulating the data communications signal to produce a spread spectrum data communications signal;

    transmitting the spread spectrum data communications signal using the power bus;

    remotely receiving the spread spectrum data communications signal; and

    determining the status of the subsystem from the received spread spectrum data communications signal.

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