Method and Apparatus for Adjusting an Ambient Light Threshold
First Claim
1. A method for controlling the power delivered from an AC power source to an electrical load comprising:
- detecting an occupancy condition;
comparing a measured ambient light level to a first value of an ambient light level threshold;
controlling the power delivered to the electrical load in response to the steps of detecting the occupancy condition and comparing the measured ambient light level;
receiving an actuation to change a state of the electrical load after the step of controlling the power; and
adjusting the ambient light level threshold to a second value in response to the step of receiving an actuation.
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Accused Products
Abstract
A load control device adapted to be coupled between an AC power source and an electrical load for controlling the power delivered to the load includes a controller, an actuator for turning the electrical load on and off, an occupancy detection circuit, and an ambient light detector. The load control device automatically turns on the electrical load in response to the presence of an occupant only if the detected ambient light is below a predetermined ambient light level threshold. After first detecting the presence of an occupant, the load control device monitors actuations of the actuator to determine whether a user has changed the state of the load. The load control device automatically adjusts the predetermined ambient light level threshold in response to the user actuations that change the state of the load.
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Citations
1 Claim
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1. A method for controlling the power delivered from an AC power source to an electrical load comprising:
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detecting an occupancy condition; comparing a measured ambient light level to a first value of an ambient light level threshold; controlling the power delivered to the electrical load in response to the steps of detecting the occupancy condition and comparing the measured ambient light level; receiving an actuation to change a state of the electrical load after the step of controlling the power; and adjusting the ambient light level threshold to a second value in response to the step of receiving an actuation.
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Specification