Method and system for detecting abnormity of cotter pin of high-speed railway overhead line system suspension device

The invention provides a method and a system for detecting abnormity of a cotter pin of a high-speed railway overhead line system suspension device. The method comprises the following steps: acquiring a to-be-detected overhead line system suspension device image; extracting a connection area in the overhead line system suspension device image to obtain a connection area image; positioning and cutting the cotter pin component in the connection area image to obtain a cotter pin image; image reconstruction is carried out on the cotter image based on an image reconstruction model to obtain a cotter reconstructed image, and the image reconstruction model is constructed based on an AutoEncoder algorithm and a StyleGAN algorithm; and calculating a reconstruction error according to the cotter pin image and the cotter pin reconstruction image, and performing anomaly detection on the to-be-detected overhead line system suspension device image through the reconstruction error. According to the invention, the accuracy of