Patent attributes
A sensor configured to determine a condition of an electrical device may include an antenna, a receiver and a controller designed to implement a method. The method of determining a condition of an electrical device may include selecting a plurality of singular dimensional components of a multi-dimensional signal of a radio frequency (RF) emission from an electrical device, extracting singular dimensional components individually or as a combination, inputting each individual extracted singular dimensional component or the combination of the components into a neural network (NN), and analyzing, with NN, outputs from the inputted singular dimensional component (s). Singular-spectrum analysis (SSA) and/or wavelet transform may be used to select components.
