The monitor integrates the functions of prevention, monitoring, control and management. It can be divided into three parts: front end, transmission and back-end.
The 1 front monitor consists of a camera, lens, protective cover, mounting bracket, decoders and other components, mainly used for imaging of key areas and public areas, and the video signal is transmitted to the back-end processing.
Limited transmission mode monitor 2 transmission part by video coaxial cable, optical cable or twisted pair and a wireless transmission channel is composed of a transmitter and receiver, in addition to power line and control line, for the front-end signal transmitted to the back-end, and provide power and control signals for the front camera and decoder.
3 monitor in now is divided into CRT monitor and LCD monitor in two major categories, characteristics of CRT monitor, high brightness, and LCD monitor has convenient transportation, image smooth feeling, so now in the monitoring project, more and more applied to the liquid crystal monitor.
Screen splitter has four segmentation, nine segmentation, the sixteen split several, can be displayed on a monitor at the same time, 4, 9, 16 camera images, can also be sent to the recorder record. Four segmentation is one of the most commonly used equipment, its performance price ratio is also good, image quality and continuity can meet most of the requirements. Nine segmentation and the price of the sixteen segmentation is more expensive, and the resolution and continuity of each image after segmentation will decline, the video effect is not good. In addition, there are six split, the eight split, double the four division equipment, but the image ratio, clarity, continuity is not ideal, the market is smaller. Most segmentation can display images, can also display a single image, can add time and character set, automatic switch, connecting alarm equipment.