B - Operations – Transporting – 61 – C
Patent
B - Operations, Transporting
61
C
B61C 17/12 (2006.01) B60T 13/66 (2006.01) B60T 17/22 (2006.01)
Patent
CA 2292002
A low power ECP tramline communication method is provided wherein power consumption by each freight car's on-board ECP transceiver is minimized such that it can be powered indefinitely by a standard locomotive battery. The low power communication method includes normally maintaining each car's ECP transceiver in a sleep mode until signaled by the locomotive master controller to wake it up. The wake-up command for the ECP transceiver can be sensitive to the length of the message sent by the MC. Alternative, or additional methods of identifying a wake-up message from the MC can include using the signal strength of the message and making the wake-up command sensitive to the ECP trainline power status. In the latter case, detection of zero tramline power is a signals to wake-up the ECP transceiver.
Macrae & Co.
Westinghouse Air Brake Company
LandOfFree
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