Railcar location using mutter networks and locomotive...

Details Railcar location using mutter networks and locomotive... Railcar location using mutter networks and locomotive...

B - Operations, Transporting

61

L

B61L 25/04 (2006.01) B61L 25/02 (2006.01) G01S 5/14 (2006.01) G08G 1/127 (2006.01) G01S 5/00 (2006.01)

Patent

CA 2176883

A method of tracking railcars in transit using global positioning techniques involves determining the location of a railcar by using a Global Positioning System (GPS) receiver and a satellite transceiver on board the locomotive, and a local area network of railcar tracking units. Instead of computing the GPS solution independently and transmitting it to a central station, the railcar tracking units transmit their unique identifications (IDs) to one of the tracking units in the local area network acting as an administrator tracking unit. The administrator tracking unit maintains a list of IDs and periodically transmits the list of IDs to the locomotive. The locomotive locates itself using the GPS system and periodically transmits its position and velocity to the central station.

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