Patent ID: 9647454
Date: 2017-05-09
CPC Classifications: G01R,H02J,Y02E,Y04S

Claim:
1. A method for determining conditions of power lines in a power distribution system based on measurements collected by a plurality of sensor units deployed in the power distribution system, the method comprising: obtaining first transformed data associated with a first set of one or more measurements collected by a first sensor unit in the plurality of sensor units and second transformed data associated with a second set of one or more measurements collected by a second sensor unit in the plurality of sensor units, the first transformed data comprising a first plurality of transform coefficient values calculated by applying a multiresolution shift invariant transformation to the first set of measurements, the second transformed data comprising a second plurality of transform coefficient values calculated by applying the multiresolution shift-invariant transformation to the second set of measurements; determining a first energy of a first subset of transform coefficient values in the first plurality of transform coefficient values, the first subset comprising transform coefficient values associated with a first resolution; determining a second energy of a second subset of transform coefficient values in the second plurality of transform coefficient values, the second subset comprising transform coefficient values associated with the first resolution; and determining, by using at least one processor and based at least in part on a result of comparing the first energy and the second energy, a condition affecting at least one power line in the power distribution system, wherein the first sensor unit and the second sensor unit are coupled to different power line segments.