Train motion detection apparatus
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United States of America Patent
Stats
-
Apr 9, 1991
Issued Date -
N/A
app pub date -
Apr 5, 1988
filing date -
Nov 16, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and method is provided for determining when a train operating in a transit system is not moving along a provided travel path in accordance with the sensed actual occupancy time of a track signal block by that train in relation to a desired occupancy time in that track signal block by that train.
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