Classification of video surveillance
The classification of video monitoring, 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).
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.
Video surveillance is an important component of security system, and it is a comprehensive system with a strong ability to guard. Video surveillance is widely used in many occasions because of its intuitive, accurate, timely and informative content. In recent years, with the rapid development of computer, network and image processing and transmission technology, video surveillance technology has made great progress. In the continuous development of video technology, video surveillance can be divided into two categories: digital video surveillance system and network monitoring (embedded video surveillance system).
