Dual-Technology Occupancy Detection
First Claim
1. A dual-technology occupancy detection apparatus, comprising:
- a motion sensor sensing motion;
an ambient light sensor sensing variation in ambient light;
a controller operative to detect occupancy and control a building environmental parameter based on the sensed motion and the sensed variations in ambient light.
3 Assignments
0 Petitions
Accused Products
Abstract
Apparatuses, methods and systems for dual-technology occupancy detection are disclosed. One dual-technology occupancy detection apparatus includes a motion sensor sensing motion, an ambient light sensor sensing variation in ambient light, and a controller for detecting occupancy and controlling a building environmental parameter based on the sensed motion and the sensed variations in ambient light. One method of detecting occupancy for controlling lighting includes sensing motion with a motion sensor, sensing variations in ambient light with an ambient light sensor, and detecting occupancy and controlling activation of a light based on the sensed motion and the sensed variations in ambient light.
103 Citations
31 Claims
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1. A dual-technology occupancy detection apparatus, comprising:
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a motion sensor sensing motion; an ambient light sensor sensing variation in ambient light; a controller operative to detect occupancy and control a building environmental parameter based on the sensed motion and the sensed variations in ambient light. - View Dependent Claims (2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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4. The apparatus of claim wherein the building environmental parameter includes security control.
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22. A method of a dual-technology fixture detecting occupancy, comprising:
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sensing motion with a motion sensor; sensing variations in ambient light with an ambient light sensor; detecting occupancy and controlling activation of a building parameter based on the sensed motion and the sensed variations in ambient light. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of detecting occupancy for controlling lighting, comprising:
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sensing motion by a PIR motion sensor; controlling powering of a light for a predetermined period of time if motion is sensed; sensing variations in ambient light with an ambient light sensor; maintaining or overriding the powering of the light based on detection of a person entering, continuously occupying or leaving a space in which the PIR motion sensor and the ambient light detection are located, wherein detection is based on the sensed motion and the sensed variations in ambient light.
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Specification