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US 5,685,507 AGranted
Remote control system for a locomotive
AssigneeCanac International, Inc.
InventorsFolkert Horst, Oleh Szklar, Kelly Doig, R. Cass, J. L. Bousquet
Life of this patent
Estimating the term…
Abstract
A locomotive control system comprising a remote transmitter issuing RF binary coded commands and a slave controller mounted on the locomotive that decodes the transmission and operates in dependence thereof various actuators to carry into effect the commands of the ground based operator.
Claims4
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, and
- v) 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.
7 more elements
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) to 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,
- v) to a command authority relinquish RF signal command generated by one of said first and second transmitters having a command authority holder operational status, and
- vi) to a command authority acceptance RF signal command generated by the other of said first and second transmitters having a command authority non-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.
8 more elements
Dependencies are inferred from the claim text.