What kind of knowledge does video surveillance system need?
Video surveillance system has developed for just over 20 years. From the 19 generation, the analog monitoring to the hot digital monitoring in 80s, and then to the ascendant, the network video surveillance has undergone tremendous changes. With the gradual unification of IP technology around the world today, it is necessary for us to re understand the history of video surveillance system development. From a technical point of view, the development of video surveillance system is the first generation of analog video surveillance system (CCTV), the second generation based on digital video monitoring system PC+ multimedia card (DVR), to the third generation based on IP network video monitoring system (IPVS).
Video surveillance system consists of real-time control system, monitoring system and management information system. The real-time control system to complete the function of real-time data acquisition and processing, storage and feedback; monitoring system of each monitoring point of all-weather surveillance in multi operation control point switch multi image; management information system to complete all kinds of information collection, transmission, receiving, processing, processing, is the core of the control system.
Knowledge of security, camera, storage, control, pan head, shield, system integration, etc..Monitoring system is composed of 5 parts: camera, transmission, control, display and record registration. The camera through the video coaxial cable will be video image transmission to the control host, then the host control video signal is assigned to each monitor and video equipment, audio signal input and synchronization will need to transport to the video recorder. Through the control of the host, the operator can issue commands, on the head of the upper and lower, left and right action control and operation of the focusing zoom lens, and can realize the switch between multiple cameras and PTZ control by the host. Using special video processing mode, the image can be input, playback, processing and so on, so that the video recording effect is the best.
