POINTS MACHINE MONITORING SYSTEM AND METHOD
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United States of America Patent
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app pub date -
Oct 31, 2014
filing date -
Dec 5, 2013
priority date (Note) -
Abandoned
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Abstract
A method and system for monitoring a points machine obtains operating characteristics of the points machine that are representative of operations of the points machine during a movement event of rails at a switch. A waveform of the operating characteristics is examined to at least one of identify or predict a problem with the operations of the points machine. The waveform is examined by comparing the operating characteristics during the first movement event with at least one of: the operating characteristics obtained during a previous movement event; an expected value of the operating characteristics; or an expected duration of a moving time period during which the first rail is expected to move from or to an unlocked position.
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