Power transmission line hidden danger detection method, hidden danger detection model construction method and equipment

The invention discloses a hidden danger detection method of a power transmission line, a hidden danger detection model construction method and equipment, and the method comprises the steps: obtaining a to-be-detected image which is a power transmission line image in a detection region; the to-be-detected image is input into a constructed hidden danger detection model, feature extraction is carried out on the to-be-detected image, a detection result is output, and the detection result comprises position information and category information of hidden dangers in the detection image; the hidden danger detection model is constructed based on an improved YOLOv7 algorithm, the hidden danger detection model comprises a trunk module, a feature fusion module and a head detection module, and ELU activation functions are embedded in the trunk module and the feature fusion module. According to the hidden danger detection model, details on a line can be better identified, complex features are easier to learn, and finally t