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Remote control system for a locomotive

  • US 5,685,507 A
  • Filed: 02/29/1996
  • Issued: 11/11/1997
  • Est. Priority Date: 04/01/1994
  • Status: Expired
First Claim
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1. A remote control system for a locomotive, comprising:

  • a first transmitter generating a set of RF signal commands, each RF signal command signalling the locomotive to execute a certain function;

    a second transmitter generating a set of RF signal commands, each RF signal command from the set of said second transmitter signalling the locomotive to execute a certain function; and

    a slave controller receiving RF commands from said first transmitter and from said second transmitter and assigning to each one of said first and second transmitters one of a command authority holder operational status and a command authority non-holder operational status, said slave controller being responsive;

    i) to at least one RF signal command generated by said first transmitter causing the locomotive to execute a predetermined function,ii) to at least one RF signal command generated by said second transmitter causing the locomotive to execute a predetermined function,iii) to an RF signal command other than said at least one RF signal command generated by a selected one of said first and second transmitters to cause the locomotive to perform a certain function,iv) an RF signal command other than said at least one frequency signal command solely generated by a transmitter having a command authority holder operational status, andv) to a command authority relinquish RF signal command generated by one of said first and second transmitters having a command authority holder operational status to assign the command authority holder operational status to the other of said first and second transmitters;

    wherein said slave controller rejects an RF command, other than said at least one RF signal command, issued from a non-selected one of said first and second transmitters.

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