Sized TV monitoring system
　　Normal television monitoring system size is not large, the function is relatively simple, but the scope of its application is very wide. The object being monitored are not limited to think of people, goods, cargo or vehicles, some applications of such systems also involves gas tank, high ink melon furnace monitoring, some applications require another factory chimneys and sewage pipes march monitoring. TV monitoring system can self-contained, but also with anti-theft alarm system, or a combination of entrance control systems, constructing an integrated security monitoring system. In general, the typical small and medium sized TV monitoring systems video surveillance points not more than 32 points, mostly at the cost of tens of thousands to tens of million.
Simple sentinel surveillance system
　　The easiest sentinel surveillance system is in place to monitor the scene point the camera (the camera is connected with fixed focus lens), the video signal transmitted through the coaxial cable to the control room monitors. For example, at the gate small plants placed a video camera, and the video signal is transmitted through the coaxial cable into the factory office monitor (or TV), the manager can see who work late or leave early, leave whether they carry the goods when the factory plant. If re-configure a VCR, you can also monitor the picture recorded for later retrieval verification.
　　This simple sentinel surveillance system for a variety of applications. When the number of cameras is more, it can be monitored via mux, Quad or system host. In a well-known foreign company headquarters, for example, he has repeatedly lost the headquarters of high-end laptop, and later in all 12 of its exports are installed on each floor of the fixed camera, and is equipped with three sets of four Quad and a 24-hour real-time video recorder, effective to eliminate the above-mentioned phenomenon theft.
　　A guest house also adopted this simple sentinel surveillance system. This is at both ends of 1-6 floor room passage of the installation of a fixed black and white camera, with a large entrance foyer, back door, parking lot and other four monitoring points total of 16 cameras, and then configure a 16 Quad, a 29-inch large-screen TV and a 24-hour recorders constitute a complete monitoring system.
　　When monitoring points will increase the size of the system becomes large, but if there is no other additional equipment and requirements, such monitoring system is still attributed to a simple point system, closed-circuit television monitoring system in a supermarket, for example, since the supermarket large business area (upper and lower levels a total of about 16,000 square meters), more shelves, installed a total of 48 sentinel monochrome camera. This 48 camera signals are divided into three groups received a corresponding 16 Quad 17-inch black and white monitor and 24-hour recorders (actual project in the supermarket an additional anti-theft alarm system and a public broadcasting / background music system, here omitted).
　　General speaking, the above two kinds of surveillance systems are analog surveillance systems. Now popular digital monitoring system / network monitoring system as well as wireless monitoring system.