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Appliance monitoring systems and methods

  • US 10,013,677 B2
  • Filed: 02/20/2015
  • Issued: 07/03/2018
  • Est. Priority Date: 02/07/2012
  • Status: Active Grant
First Claim
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1. A computer system communicatively coupled with one or more appliances at a site, the computer system comprising:

  • means for determining that an appliance or appliance part exhibits a maintenance issue comprising;

    means for accessing reference data, the reference data comprising a first numerical array, the first numerical array comprising a first collection of related successive signal sample values that represent a first time varying environmental signal;

    means for receiving appliance condition data, the appliance condition data comprising a second numerical array, the second numerical array comprising a second collection of related successive signal sample values derived from a second time varying environmental signal sensed by a transducer means at the site;

    means for comparing the first and second numerical arrays in a time domain, frequency domain, or both; and

    means for initiating a notification regarding the maintenance issue, when determined, based at least in part upon the comparison.

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