Occupancy sensor and method of operating same
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United States of America Patent
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Jul 2, 2002
Issued Date -
N/A
app pub date -
Aug 26, 1999
filing date -
Feb 4, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A multiple sensing technology-based occupancy sensor. Ultrasonic and infrared sensors are used to produce first and second occupancy estimator signals that are combined using a fusion based detection algorithm to produce a combined estimator signal. The combined estimator is then used to switch electrical loads when the combined estimator signal is above a predetermined threshold. The result is an occupancy sensor that has a very high probability of occupancy detection and a low probability of false tripping.
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Cited Art Landscape
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