Zero power lighting control device and method
First Claim
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1. A zero power lighting control system for electrically coupling to a load circuit, the zero power lighting control system comprising:
- a) a sensor unit for detecting motion and sending control signal to a load controller, wherein the load controller opens the load circuit when there is no motion detected by the sensor unit after a first time delay and the motion sensor unit powers down to draw zero current after a second time delay, such that the motion sensor unit is disabled and unable to detect motion;
b) a separate switch device for closing the load controller; and
c) a control circuit for powering the motion sensor unit “
On”
when the switch device is activated to close the load controller, such that the sensor unit is reenergized and capable of detecting motion.
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Abstract
The present invention is directed to a lighting control system with a motion sensor unit that electrically couples to a load circuit through a latching relay or load controller for turning on and off lights. The motion sensor unit is configured to power down to draw zero power after a time delay, when motion is longer detected within the work space by the motion sensor unit. The lighting control system further includes a control circuit that reinitiates or turns the motion sensor back on through a switch device.
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Citations
20 Claims
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1. A zero power lighting control system for electrically coupling to a load circuit, the zero power lighting control system comprising:
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a) a sensor unit for detecting motion and sending control signal to a load controller, wherein the load controller opens the load circuit when there is no motion detected by the sensor unit after a first time delay and the motion sensor unit powers down to draw zero current after a second time delay, such that the motion sensor unit is disabled and unable to detect motion; b) a separate switch device for closing the load controller; and c) a control circuit for powering the motion sensor unit “
On”
when the switch device is activated to close the load controller, such that the sensor unit is reenergized and capable of detecting motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for electrically coupling to a load circuit, the system comprising:
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a) at least one sensor unit for detecting motion, wherein the at least one sensor unit powers down to draw zero current when load circuits are opened after a zero power time delay, such that the at least one sensor unit is disabled; b) a plurality of load controllers electrically coupled to the load circuits and the at least one sensor unit, wherein the at least one sensor unit instructs the plurality of load controllers to open the load circuits when motion detected by the at least one sensor unit is below a threshold value; c) a separate switch device for opening and closing the plurality of load controllers; and d) a control circuit for powering the at least one motion sensor unit “
On”
when the switch device is activated to close the plurality of controllers and, wherein the at least one sensor unit is re-energized and is enabled to detect motion. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for controlling lights, the method comprising:
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a) monitoring motion with a motion sensor unit in a detection area; b) verifying that the motion in the detection area is above a threshold value; c) opening a load circuit to shut off the lights when the motion is not detected within the detection area after a first delay period and switching the motion sensor off to draw zero power after a second delay period, wherein the motion sensor is disabled; and d) resetting the motion sensor unit by closing the load with a separate switch device, wherein the motion sensor is energized and is enabled to detect motion through a control circuit electrically coupled to the switch device and the sensor unit. - View Dependent Claims (18, 19, 20)
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Specification