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Controlling the setback and setback recovery of a power-consuming device

  • US 9,436,199 B2
  • Filed: 06/13/2012
  • Issued: 09/06/2016
  • Est. Priority Date: 06/13/2011
  • Status: Active Grant
First Claim
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1. A non-transitory computer readable medium having computer-readable code stored thereon for causing a computer to perform a method of controlling a setback mode of a power-consuming device, the method comprising:

  • determining a previous drift value,wherein the previous drift value is a rate of change of at least one previous environmental parameter observed while the power-consuming device was in a previous setback mode;

    receiving, at a processor component, at least one setback setting input,wherein the setback setting input corresponds to at least one of a setback entry time, a setback environmental parameter, a setback parameter differential, and combinations thereof,wherein the setback entry time is a programmed time at which the power-consuming device will enter the setback mode,wherein the setback environmental parameter is a threshold value for an environmental parameter of the power-consuming device at which the power-consuming device will enter the setback mode,wherein the setback parameter differential is a target change in an environmental parameter of the power-consuming device when the power-consuming device enters the setback mode;

    receiving data indicative of a current environmental parameter;

    calculating a replacement setback setting based at least on the previous drift value, the setback setting input, and the data indicative of the current environmental parameter;

    monitoring the current environmental parameter;

    comparing the current environmental parameters to a predetermined operating environmental parameter;

    entering a shut-off mode when the current environmental parameter is within a predefined threshold of the predetermine operating environmental parameter;

    exiting the shut-off mode when the current environmental parameter is not within the predefined threshold of the predetermined operating environmental parameter;

    monitoring a shut-off time corresponding to the power-consuming device entering the shut-off mode;

    monitoring a turn-on time corresponding to the power-consuming device exiting the shut-off mode;

    computing a current drift value based at least on the predetermined operating environmental parameter and the current environmental parameter when the current environmental parameter is not within predefined threshold of the predetermine operating environmental parameter, and a difference between the shut-off time and the turn-on time; and

    replacing the previous drift value with the current drift value.

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