Micropower impulse radar based wheel detector
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United States of America Patent
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-
Jun 9, 1998
Grant Date -
N/A
app pub date -
May 2, 1996
filing date -
Jul 20, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wheel detector for indicating the presence of a rail vehicle on a set of spaced rails is disclosed. The wheel detector transmits a radar pulse signal and samples a portion of the signal corresponding to a target area on one of the rails. The wheel detector will generate an indication signal if a change in the reflectivity of the received signal corresponding to the target area is detected. The wheel detector may additionally include multiple transmitters and receivers to provide redundancy, and be configured to determine the linear velocity and direction of a wheel.
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