Bicolor indicator lamp for room occupancy sensor
First Claim
1. A method of operating an indicator device in a lighting control system, the lighting control system comprising a lighting fixture, a switching device for controllably switching the lighting fixture on and off in accordance with control signals from a controller, a motion detector for detecting motion, and a controller operable to switch the lighting fixture on when motion is detected and to switch the lighting fixture off when a selected period of time has elapsed following the last detected motion, the method comprising the steps of:
- providing a first indication via said indicator device when said lighting control system is in one of a bypass off mode and a bypass on mode, said lighting control system operating in a bypass off mode when said lighting fixture is not switched on after said motion is detected, said lighting control system operating in said bypass on mode when said lighting fixture is switched on even though motion is not detected; and
providing a second indication via said indicator device when said lighting control system is in a time out mode, said lighting control system operating in a time out mode when said lighting fixture is switched off after said selected period of time has elapsed following the most recent occurrence of detected motion, said first indication and said second indication being different.
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Accused Products
Abstract
A bicolor indicator is provided for a lighting control system which controllably switches one or more lkighting fixtures on or off in accordance with detected motion, ambient light level and a selected time out period. The indicator indicates when the lighting control system is operating in a bypass on or off mode (i.e., overriding controlled switching based on motion detection and ambient light level) or in an automatic time out mode. The indicator also indicates occurrences of motion detection and whether or not the ambient light level is exceeded.
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Citations
10 Claims
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1. A method of operating an indicator device in a lighting control system, the lighting control system comprising a lighting fixture, a switching device for controllably switching the lighting fixture on and off in accordance with control signals from a controller, a motion detector for detecting motion, and a controller operable to switch the lighting fixture on when motion is detected and to switch the lighting fixture off when a selected period of time has elapsed following the last detected motion, the method comprising the steps of:
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providing a first indication via said indicator device when said lighting control system is in one of a bypass off mode and a bypass on mode, said lighting control system operating in a bypass off mode when said lighting fixture is not switched on after said motion is detected, said lighting control system operating in said bypass on mode when said lighting fixture is switched on even though motion is not detected; and providing a second indication via said indicator device when said lighting control system is in a time out mode, said lighting control system operating in a time out mode when said lighting fixture is switched off after said selected period of time has elapsed following the most recent occurrence of detected motion, said first indication and said second indication being different. - View Dependent Claims (2, 3, 4, 5)
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6. An indicator apparatus for a lighting control system, said lighting control system comprising a lighting fixture, and a switching device for controllably switching the lighting fixture on and off, said indicator apparatus comprising:
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a controller programmed to generate control signals to control said switching device; a motion detector for detecting motion and providing an output signal indicating detected motion to said controller, said controller being operable to switch said lighting fixture on when said motion is detected and to switch said lighting fixture off when a selected period of time has elapsed following the most recent occurrence of said detected motion; and an indicator device for providing a first indication when said lighting control system is in one of a bypass off mode and a bypass on mode, said lighting control system operating in a bypass off mode when said lighting fixture is not switched on after said motion is detected, said lighting control system operating in said bypass on mode when said lighting fixture is switched on even though motion is not detected; wherein said indicator device provides a second indication when said lighting control system is in a time out mode, said lighting control system operating in a time out mode when said lighting fixture is switched off after said selected period of time has elapsed following the most recent occurrence of detected motion, said first indication and said second indication being different. - View Dependent Claims (7, 8, 9, 10)
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Specification