Fault diagnosis model training method and device, equipment fault diagnosis method and device, equipment and medium

The embodiment of the invention discloses a fault diagnosis model training method and device, an equipment fault diagnosis method and device, equipment and a medium. The fault diagnosis model training method comprises the steps of inputting a visible light image and an infrared image of sample equipment into a fault diagnosis model to be trained to obtain visible light features and infrared features, and performing reconstruction according to the visible light features and the infrared features to obtain a visible light reconstruction image and an infrared reconstruction image; determining a visible light image distance, and determining an infrared image distance; determining an image feature distance; determining a predicted fault type output by the fault diagnosis model; and training the fault diagnosis model according to the visible light image distance, the infrared image distance, the image feature distance, the visible light fault type marked by the visible light image, the infrared fault type marked by