Personnel potential safety hazard warning method, device and system and computer equipment

The invention relates to a personnel potential safety hazard warning method, device and system and computer equipment, the warning method is based on detection information of skeleton key points of a human body, and the method comprises the following steps: firstly, detecting personnel skeleton information of a distribution network site by using some public detection algorithms of the skeleton key points of the human body; designing a proper loss function based on the extracted skeleton point information of different workers on the distribution network site to train a skeleton point information feature extractor with excellent performance; the main function of the loss function is to make the loss of the extracted skeleton point features in the same category smaller and the loss of the extracted skeleton point features in different categories larger. Secondly, based on the trained skeleton point feature extractor, extracting skeleton point features of all workers in a to-be-detected area of a distribution net