The working principle of skipping rope app every day, calibrating human skeleton points, supplemented by motion capture technology. Tian Tian Skipping APP is an intelligent sports platform developed by AI intelligence. It is an exercise artifact for tens of millions of users. Based on big data+algorithm model, human skeleton points are calibrated, supplemented by motion capture technology. As long as you move towards the camera of the mobile phone, you can realize track tracking and automatic and accurate counting.