说明：  At present, the sports meet has been carried out widely in the country. Many schools hold regular track and field sports on different scales every year. However, in the process of the games, there are many problems, such as the large number of participants, the complex project settings and the tight schedule, and whether these problems can be solved directly related to the success of the games. On the other hand, people have higher and higher requirements for real-time, accuracy, security and reliability of the game results, which are difficult to achieve by manual operation.