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Remote power state detector

  • US 9,390,600 B1
  • Filed: 12/29/2015
  • Issued: 07/12/2016
  • Est. Priority Date: 10/11/2013
  • Status: Expired due to Fees
First Claim
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1. A power state monitor comprising:

  • one or more individual sensors and a centralized alarm device;

    wherein the power state monitor is adapted for use with one or more appliances;

    wherein each individual sensor is adapted to detect a light generated by a power indication light of an appliance selected from the one or more appliances;

    wherein each individual sensor communicates with the centralized alarm device;

    wherein each individual sensor communicates a first message when the power indication light of an appliance selected from the one or more appliances changes from dark to light;

    wherein each individual sensor communicates a second message when the power indication light of an appliance selected from the one or more appliances changes from light to dark;

    wherein the centralized alarm device monitors an elapsed time since a receipt of the first message for each individual sensor;

    wherein when the centralized alarm device determines that the elapsed time since the receipt of the first message from an individual sensor is greater than a previously determined threshold value, the centralized alarm generates a visual alarm, and an audible alarm.

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