Event point determination method, transient interval determination method, and load event identification method

Abstract

The application relates to the field of non-invasive electric appliance load detection, and discloses an event point determination method, a transient interval determination method and a load event identification method. The event point determination method comprises the following steps: adopting a first group of windows to cache data of a target cycle length in a current connection waveform of a target circuit, and preliminarily determining that an electric appliance access event occurs if the current data in the first group of windows meets a target condition; adopting a second group of windows to cache data of the target cycle length in the current connection waveform, screening out pseudo event points corresponding to the electric appliance access event from a plurality of sampling points contained in the second group of windows, and obtaining current data of a complete cycle length at positions respectively spaced apart from each pseudo event point by a second target cycle length, so as to screen out a real event point from each pseudo event point. The application can effectively cope with noise interference in the circuit by adopting two groups of three-window sliding detection current waveform data, and improves the detection accuracy of the electric appliance access event point.

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