Image-based power equipment identification method, device and system

The invention discloses an image-based power equipment identification method. The method comprises the steps of receiving an electrical equipment image training set, performing preprocessing, establishing image feature point description information, association point information and indexes of the image feature point description information, the association point information and electrical equipment categories for preprocessed images by using an image recognition algorithm, storing the image feature point description information, the association point information and the indexes in a feature library, and training the preprocessed electrical equipment image training set by using machine learning; Receiving a to-be-identified power equipment image, performing preprocessing, extracting feature points, and performing image search based on a feature point detection SIFT algorithm; Establishing a feature set index for the feature points extracted from the to-be-identified power equipment image, matching the feature