Railroad car coupler gap analyzer
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United States of America Patent
Stats
-
Feb 12, 2008
Grant Date -
Oct 19, 2006
app pub date -
Apr 14, 2005
filing date -
Apr 14, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In trains a dragging air hose can snag an object on the tracks and break. A broken air hose can lead to an emergency stop or an accident caused by faulty brakes. The present invention mounts a video camera opposite a lit screen, thereby contrasting the air hose profile against a white screen in all weather and lighting conditions. Machine vision algorithms locate the air hose in a captured image from a moving train, and compute its lowest point. An alarm condition is sent to a remote location. An optional car gap detector is laser based. It helps align the car gap with the data capture for the camera. Another subsystem can include a car coupler height detection algorithm.
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Cited Art Landscape
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