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Occupancy-based operating state determinations for sensing or control systems

  • US 10,678,416 B2
  • Filed: 08/18/2017
  • Issued: 06/09/2020
  • Est. Priority Date: 10/21/2011
  • Status: Active Grant
First Claim
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1. A system for sensing or control, the system comprising:

  • at least one infrared sensor that is configured to detect a person within a range of least a portion of the system;

    an energy-consuming lighted screen;

    one or more memory devices;

    one or more processors that are programmed to perform operations comprising;

    storing, in the one or more memory devices, indications of occupancy detected by the at least one infrared sensor in time buckets, wherein each of the time buckets represent at least 1 minute; and

    causing the system to operate in one of a plurality of states, wherein the plurality of states comprises;

    an away state that is entered after away-state criteria are met based at least in part on the indications of occupancy detected by the at least one infrared sensor;

    an arrival state that is entered from the away state when at least two of the time buckets that are time-wise adjacent are populated with at least some of the indications of occupancy; and

    a wake-on-approach state in which the lighted screen is activated when at least one of the indications of occupancy is detected by the at least one infrared sensor.

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