1results about How to "Different shapes" patented technology

The application discloses an iterative unsupervised non-intrusive load identification method and system, and the method comprises the following steps: obtaining a load power time sequence; pre-processing the load power time sequence; detecting key points of the load power time sequence; extracting a load power subsequence and matching the load power subsequence with a template; judging whether the number of unknown load power subsequences accumulates to 30; performing theme discovery on the load power subsequence; judging whether the number of subsequences in each group in a non-directional graph is not less than 10; performing electrical appliance power waveform theme sequence mode mining; constructing corresponding electrical appliance load mark templates, and updating a load mark template library of a non-intrusive load monitoring system; and the system comprises corresponding processing modules. The application can autonomously discover simple and complex power consumption modes of different types of electrical appliances in various unfamiliar scenes, and is suitable for the diversity of power consumption modes of the same type of electrical appliances and the difference of power consumption modes of the same electrical appliance.