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Non-intrusive electrical load monitoring

  • US 9,024,617 B2
  • Filed: 09/21/2012
  • Issued: 05/05/2015
  • Est. Priority Date: 09/23/2011
  • Status: Active Grant
First Claim
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1. A method of non-intrusive electrical load monitoring of an electrical distribution system, comprising:

  • monitoring a main power line of the electrical distribution system to determine a set of electrical characteristics of the electrical distribution system;

    receiving a set of state information for a plurality of individual loads of the electrical distribution system;

    determining energy consumption characteristics for the plurality of individual loads based upon the set of electrical characteristics and the set of state information;

    monitoring the main power line of the electrical distribution system for a known carrier waveform;

    receiving the carrier waveform in response to the monitoring; and

    demodulating the carrier waveform to extract the set of state information.

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