Method and system for checking track integrity

Details Method and system for checking track integrity Method and system for checking track integrity

2005-01-25

2005-01-25

Morano, S. Joseph (Department: 3617)

Railway switches and signals

Block-signal systems

C246S16700M

Reexamination Certificate

active

06845953

ABSTRACT:
A train control system includes a control module that determines a position of a train using a positioning system and consults a database to determine when the train is approaching a portion of track monitored by a track circuit. When the train is near a track circuit, but while the train is still far enough away from the track circuit such that the train can be stopped before reaching the portion of track monitored by the track circuit, the train transmits an interrogation message to a transceiver associated with the track circuit. When the track circuit receives the interrogation message, a test is initiated. The test results are transmitted back to the train. The train takes corrective action if the track circuit fails to respond or indicates a problem.

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