Porcelain insulator deterioration diagnosis method and system based on infrared detection

The invention belongs to the field of fault diagnosis, and provides a porcelain insulator degradation diagnosis method and system based on infrared detection, and the technical scheme is that the method comprises the steps: positioning a whole string of insulators through employing an inclined frame detection method, removing the rotation of an insulator string region on the basis of the positioning of the whole string of insulators, and converting the whole string of insulators into a horizontal region; on the basis, an iron cap and disc surface area in the single insulator is positioned by using an area detection method; furthermore, a temperature difference between insulator sheets is calculated by reading a bottom temperature matrix of an infrared image and extracting a temperature value of each insulator iron cap, and a diagnosis rule of a degraded insulator is obtained through a single classifier in combination with a historical infrared detection image. The intelligent level of infrared zero detection