Occupancy sensor and method of operating same

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 elec...

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Bibliographic Details
Main Authors WILLIAMS BRUCE G, CULLEN GERARD L, WOYTEK TIMOTHY W, WILLIAMS JONATHAN D, KONRADI VADIM A, MYRON DOUGLAS D, FOWLER JOHN J
Format Patent
LanguageEnglish
Published 02.07.2002
Edition7
Subjects
ALARM SYSTEMS
CALCULATING
COMPUTING
COUNTING
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
HANDLING RECORD CARRIERS
INFORMATION STORAGE
ORDER TELEGRAPHS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
STATIC STORES
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Summary: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.
Bibliography:Application Number: US19990383492