Route monitoring system and method
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United States of America Patent
Stats
-
Sep 21, 2021
Grant Date -
Jun 27, 2019
app pub date -
Mar 4, 2019
filing date -
Dec 5, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A monitoring method and system monitor a transmitted current that is injected into conductive components of a route traveled by vehicle systems, monitor a received current that represents a portion of the transmitted current that is conducted through the conductive components of the route, examine changes in the transmitted and/or received current over time to determine when the vehicle systems are on the route between a first location where the transmitted current is injected into the conductive components and a second location where the received current is monitored, and examine the changes in the transmitted and/or received currents. The changes are examined to identify (a) a contaminated portion of a surface on which the route is disposed, (b) a foreign object other than the vehicle systems that is contacting the route, and/or (c) a damaged or broken portion of at least one of the conductive components of the route.
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