(The mall is located in Anji Avenue, XX City, with convenient transportation and large traffic; It is the main trading market in Nanning. The storage and circulation of a large number of goods in the market make the security monitoring work in the market particularly important. The traditional monitoring and management mode is to arrange staff to be on duty at fixed points or patrol to prevent fire and theft accidents in the market. However, due to the uncontrollability of human factors such as personnel dispatch and patrol, there is always a dead corner of monitoring and management, resulting in frequent fire and theft accidents in the market, which has brought serious losses to the owners and relevant departments. With the characteristics of wide market scope, scattered monitoring points and difficult to manage, as well as inconvenient wiring and power supply, wireless monitoring system is widely used in market monitoring at present because of its own advantages such as high flexibility, strong scalability, good mobility and simple maintenance. According to our understanding of the needs of the mall and the needs of users, the whole mall will be set up with video monitoring system and wireless network coverage, and full consideration will be given to future system expansion. It includes the following subsystems: 1. Wireless network system 2. Video monitoring system)