Systems and methods for redundant vehicle detection at highway-rail grade crossings
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United States of America Patent
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Dec 3, 2013
Grant Date -
Nov 15, 2012
app pub date -
May 9, 2011
filing date -
May 9, 2011
priority date (Note) -
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Abstract
A method for sensing objects within a rail grade crossing island is described. The method includes transmitting a radar signal into the island from each of a plurality of radar devices such that each portion of the island is monitored by at least two of the radar devices, detecting if an object is in the island based on received signals corresponding to the transmissions associated with at least one of the radar devices, and operating a gate control device associated with the rail grade crossing based on the detections.
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