This invention discloses a method,
system, and electronic device for personnel operation assessment based on video temporal
joint analysis, relating to the field of power safety technology. This application involves acquiring video from the
work site and extracting frames; extracting the sequence of key human points from each frame; dynamically defining risk areas for the head,
torso, and hands based on these key points; calculating hand movement speed, distance from the
risk area, and movement consistency characteristics; triggering refined
behavior recognition when hand movement characteristics indicate a tendency to enter the
risk area; extracting multi-scale temporal features before and after the trigger; and judging specific risk behaviors using a pre-trained
action recognition model. This invention, through a two-level mechanism of "trend triggering + refined recognition," achieves early warning and accurate identification of risk behaviors such as removing helmets and gloves, effectively improving the real-time performance and preventative capabilities of
work safety monitoring. This application realizes a shift from post-event identification to pre-event warning, resulting in better
safety monitoring performance.