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Remote system for monitoring and controlling railroad wayside equipment

  • US 7,140,577 B2
  • Filed: 04/08/2004
  • Issued: 11/28/2006
  • Est. Priority Date: 04/08/2004
  • Status: Active Grant
First Claim
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1. A system for remote control of an electrically operated railroad wayside equipment having a power supply for powering the wayside equipment, said power supply providing power to the way side equipment via four preexisting power lines, and said system comprising:

  • a central controller providing central control signals;

    a transmitter associated with the controller for receiving the control signals and converting the control signals into communications signals that are transmitted through only two of said four power lines to the way side equipment; and

    at least one remote equipment controller controlling operation of the wayside equipment, said equipment controller having a receiver connected to at least one of the two power lines for receiving at least one of the communications signals and for generating corresponding remote control signals for controlling the wayside equipment.

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