In recent years, with the popularity of the network in China and deepen the development of the deepening of enterprise information construction, all walks of life have accelerated the construction of information network platform, most of the units have been or are being built, the internal computer local area network; the same time, the network advanced emerging applications provide a good platform. , Due to the increasing demand for security in the modern enterprise management, the monitoring system plays an increasingly important role in the network system and surveillance system have to be built to combine the transformation cycle of the project not only can the greatest degree of reduction, while avoiding duplication of capital investment and improve the utilization of network resources. Factory plant a larger scale, the complexity of the production and management departments that require high safety factor. In a large number of production workshops, airport runways, special outdoor places and departments to achieve a combination of site monitoring and production of the Command and Control, will greatly improve the level of intelligent management of the factory. The plant install a closed-circuit monitoring system has been one of the production management practices essential to business. For some small businesses, small factories, a set of LAN network video surveillance system installed within the enterprise, company management can not only monitor the status of the entire enterprise at any time in the office, but also in when they go out through the Internet to see and control the internal the camera to keep abreast of production (www.95b2c.com).