As a large-scale infrastructure for urban construction, the subway is not only the backbone system of urban public transport, but also the support system for urban construction and land development. The development of metro modernization has become one of the important signs of urban transportation modernization. The subway station power backup monitoring system is divided into central level, station level and local level three levels to monitor the station power, and system management at the central level and station level. The station power monitoring system conducts comprehensive and effective automatic monitoring and management of the power equipment of all stations in the whole line to ensure that the equipment is efficient and energy-saving. Reliable optimal operating conditions to create a comfortable underground environment; and in the emergency state, better coordinate the operation of the station equipment, give full play to all kinds of electricity The role of the force equipment should ensure the safe operation of the entire line. The central-level power monitoring system consists of a central-level ring-type local area network, which includes the main and standby monitoring hosts, the main and standby servers, the file management computer, and the network. Change (communication conversion interface), printer, printer server, large screen display system and UPS and other equipment. The station-level monitoring system consists of a programmable controller (PLC) installed in the station's environmental control, electric control room and station control room (SCR) to collect field devices. The status signal is transmitted to the station level server and the monitoring station through the network communication line, and the station monitoring personnel then issue control commands through the workstation, which are transmitted by the PLC. Delivered to the field device to complete.

In recent years, with the rapid development of social economy and science and technology, the living standards of urban and rural residents have been significantly improved, and living conditions have been continuously improved. People are increasingly demanding security technology prevention, but the means of crime are constantly changing. After people have solved the problem of living, they are increasingly concerned about living. Living safely, because criminals who are guilty of crimes often choose residential areas as targets of attack. In the past, community security guards were mainly used for personal defense. Fan measures have far met the safety needs of people. In order to combat various economic criminal offences and protect the lives and property of the people and the people, To ensure the normal operation of all walks of life and all sectors of society, the use of high-tech means to prevent and stop various crimes has become the development direction of the security field.