The monitoring system of Nan 'an physical education senior high school entrance examination is connected to the Education Bureau. If the school and the Education Bureau are interconnected through the network, it can be realized through the network transmission function of DVR hard disk video. If it is not a fixed public IP, dynamic addon domain and port mapping should be used, and the surveillance video of the senior high school entrance examination should be kept for three months. Junior high school academic level examination, referred to as "senior high school entrance examination", is an examination to test whether junior high school students have reached junior high school academic level; It is a necessary condition for the issuance of junior high school diplomas. The examination subjects include all subjects stipulated in the national curriculum plan within the scope of the junior high school level examination. The examination time is in mid-June, and the monitoring system is one of the most widely used security systems. The more suitable on-site monitoring system in the market is handheld video communication equipment, and now video monitoring is the mainstream.