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Occupancy sensor having automated hysteresis adjustment for open-loop daylighting operation

  • US 9,370,080 B2
  • Filed: 01/11/2016
  • Issued: 06/14/2016
  • Est. Priority Date: 02/25/2013
  • Status: Expired due to Fees
First Claim
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1. A sensor, comprising:

  • a housing;

    a light sensor located in the housing, the light sensor for detecting ambient light levels in the monitored space;

    a processor communicatively coupled to the light sensor; and

    a load control device communicatively coupled to the processor, the load control device coupled to a load for selectively energizing and de-energizing the load in response to a signal received from the processor;

    wherein the processor is programmed to perform an open-loop daylighting calibration routine for calculating an amount of light contributed by the load and using the calculated amount of light to automatically adjust a sensed light level at which the load is being energized or de-energized.

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