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Controlling building systems

  • US 9,471,045 B2
  • Filed: 03/13/2013
  • Issued: 10/18/2016
  • Est. Priority Date: 09/11/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • determining a measured signature of a consumable product supplied to a building;

    determining, by an autonomous processor, a stop time of a building system from the measured signature, wherein the stop time is an approximate time when the building system stopped accessing the consumable product;

    retrieving, by the autonomous processor, an occupancy time of the building;

    determining, by the autonomous processor, an unused ramp time of the building system, wherein the unused ramp time is a time interval between the determined stop time of the building system and the occupancy time of the building;

    in response to the determining the unused ramp time, using a feedback control system utilizing outside temperature to reduce the unused ramp time; and

    determining a start time score of the building, wherein the start time score is a metric comparing the unused ramp time to a desired ramp time.

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