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SELF-CALIBRATING CONTACTLESS POWER CONSUMPTION SENSING

  • US 20150002137A1
  • Filed: 09/12/2014
  • Published: 01/01/2015
  • Est. Priority Date: 09/25/2009
  • Status: Active Grant
First Claim
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1. A system for sensing electrical power usage in an electrical power infrastructure of a structure, the structure comprising a circuit breaker box and one or more main electrical power supply lines for the electrical power infrastructure of the structure, the system comprising:

  • a sensing device configured to be attached to a panel of the circuit breaker box overlying at least part of the one or more main electrical power supply lines, the sensing device comprising one or more magnetic field sensors;

    a calibration device configured to be electrically coupled to the electrical power infrastructure of the structure, the calibration device comprising a load unit; and

    one or more processing modules configured to receive one or more output signals from the sensing device,wherein;

    the sensing device is devoid of being electrically or physically coupled to the one or more main electrical power supply lines or the electrical power infrastructure when the sensing device is attached to the panel; and

    the one or more processing modules are further configured to determine the electrical power usage when the sensing device is coupled at any location over the panel, based at least in part on the one or more output signals received from the sensing device.

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