Patent ID: 9476935
Filing Date: 2016-10-25
CPC Classification: G01D,G01R,G06Q,Y04S

Claim Text:
1. A method for detecting atypical behavior by electrical appliances, the method comprising: engaging at least one monitoring unit with an outlet of an electrical system, the electrical system having a plurality of electrical appliances engaged with other outlets; at one of the at least one monitoring unit, applying a known electrical load and detecting the resulting change in voltage at one of the at least one monitoring unit to create at least one calibration measurement; at one of the at least one monitoring unit, detecting voltage changes when no known electrical load is being applied at any of the at least one monitoring unit, the detecting voltage changes creating a plurality of voltage change measurements; using the at least one calibration measurement and the plurality of voltage change measurements, identifying the operation of at least one of the electrical appliances engaged with the other outlets of the electrical system and characterizing the operation of the at least one of the plurality of electrical appliances; based upon changes in the characterization of the operation of the at least one of the plurality of electrical appliances created using the at least one calibration measurement and the plurality of voltage change measurements over time, identifying a change in the operation of at least one of the plurality of electrical appliances; and issuing an alert identifying the change in operation of the at least one of the plurality of electrical appliances.