OCCUPANCY SENSOR AND OVERRIDE UNIT FOR PHOTOSENSOR-BASED CONTROL OF LOAD
First Claim
1. A control system for a load control device comprising:
- a housing having an occupancy sensor adapted for detecting the presence of an object within a field of view and for operating at least one load in response to detecting the presence of or movement of the object;
and a light sensor in said housing for sensing light, said light sensor being operatively connected to said occupancy sensor for controlling said occupancy sensor based on the light sensed by said light sensor.
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Accused Products
Abstract
An occupancy sensor with a separable override unit can selectively override the operation of the occupancy sensor at designated times and for selected time intervals. The occupancy sensor includes a light sensor to actuate the occupancy sensor and a light assembly when the ambient light is below a predetermined level and to deactivate the occupancy sensor when the ambient light is above a threshold level. The override unit is provided with a light source, such as an LED, to emit light to actuate the light sensor of the occupancy sensor, thereby controlling the occupancy sensor, such as by preventing the occupancy sensor from being actuated. The occupancy sensor includes a cavity for receiving the override unit with the LED aligned with the light sensor: A control unit is operatively connected to one or more override units for selectively controlling the normal operation of the occupancy sensor.
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Citations
25 Claims
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1. A control system for a load control device comprising:
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a housing having an occupancy sensor adapted for detecting the presence of an object within a field of view and for operating at least one load in response to detecting the presence of or movement of the object; and a light sensor in said housing for sensing light, said light sensor being operatively connected to said occupancy sensor for controlling said occupancy sensor based on the light sensed by said light sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A control system for a load control device comprising:
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a housing; an occupancy sensor unit associated with said housing and adapted for sensing the presence of an object and actuating at least one load; a light sensor for detecting ambient light and for operating said load unit when the ambient light is within a predetermined range; and an override unit operatively associated with said housing and having a light source for directing light to said light sensor to actuate said light sensor. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A control system for a load control device, the load control device having a housing comprising a sensor for sensing ambient light, and a control device for operating a load in accordance with an output of the sensor, the control system comprising:
an override unit operatively associated with said sensor, said override unit comprising a light source configured to be detected by the sensor in the load control device, and a control device configured to control actuation of said light source. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
Specification