Substation now generally have a "three remote" system, based on the increase in the substation remote video surveillance system, referred to as the substation remote viewing system, video data and monitoring data from the substation front of the substation equipment, video servers capture coding, and encoded data transmitted over the network to the monitoring center, the video data and the monitoring center monitoring data received encoded, monitoring, storage and management. The implementation of remote monitoring system for substation unattended substation, so as to promote the power to automate network management gradually integrated, centralized, intelligent direction to provide strong technical support. Second, the demand analysis of substation remote monitoring system, mainly in the following aspects:? Through video surveillance, security systems, to protect the safety of unmanned substation equipment. By combining the advantages of video surveillance remote and local personnel operating experience, to avoid misuse. Through video surveillance, lighting linkage, health, environment monitoring field devices, play warning and protection. With other systems (such as substation automation systems, etc.) work. ? The main monitoring object: Substation (the) environment within the field area. Appearance of the main transformer and neutral earthing. Substation (the) outdoor circuit breakers, disconnectors and earthing switches and other places close sub-state monitoring. Among the major equipment for the substation (the) monitor inside (including the door, control room, following the security room, communications room, hyperbaric chamber, etc.). Third, the system is composed of a network of digital surveillance cameras by converting the intake of analog image signal into a digital image signal, and then transmitted through a computer network to make the computer within the network monitoring terminal have become unrestricted geographical environment.