Advanced preemption using the wayside inspector and wireless magnetometer sensors
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United States of America Patent
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Sep 15, 2020
Grant Date -
Mar 14, 2019
app pub date -
Sep 13, 2017
filing date -
Sep 13, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A warning system comprising an advanced preemption system is provided to provide warning of an additional advanced preemption time directly from a wayside inspector to a city traffic controller to turn one or more traffic lights red on a route intersecting with the railroad crossing. The advanced preemption system includes a first set of wireless magnetometers to be installed on a railway track of the railroad crossing on a first side of the railroad crossing. The first set of wireless magnetometers to be located at an advanced preemption crossing start activation point that is being at a distance before an existing crossing start activation point of the railroad crossing to provide the warning of the additional advanced preemption time.
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