Rail vehicle signal enforcement and separation control
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United States of America Patent
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Aug 15, 2017
Grant Date -
Nov 19, 2015
app pub date -
Jul 27, 2015
filing date -
Sep 3, 2013
priority date (Note) -
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Abstract
A system for vehicle management includes a control signal interface subsystem and a vehicle-mounted subsystem. Each of these subsystems includes an ultra-wideband (UWB) communications component. The subsystems communicate with each other through the UWB components. The vehicle mounted subsystem interfaces with a braking system of the vehicle. The vehicle mounted subsystem determines the distance between it and the control signal interface subsystem based on the time-of-flight of at least one communication between the subsystems. The vehicle-mounted subsystem can cause the braking system of the vehicle to activate if the distance between the vehicle-mounted subsystem and the control signal interface subsystem is less than a threshold.
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