Characteristics of closed circuit monitoring system
Digital video recording system not only has low storage cost, high efficiency, but also has the advantages of network transmission, remote transmission and cyclic storage. At the same time, digital and network transmission technology can realize the hard disk video recording system and anti-theft alarm system network linkage, timely and accurate feedback information of the scene, to provide sufficient and reliable basis for the alarm event.
The building closed circuit monitoring system scheme, the building closed circuit monitoring system scheme and the building closed circuit monitoring system scheme, the closed-circuit monitoring system widely used in all sectors of our country is mostly analog.Its main features are as follows: the system adopts matrix host control, monitors the front end target through the television wall, and uses long delay analog video recorder to record and replay;The main drawback is that when video data needs to be backed up for a long time, a large amount of video tapes are needed, which consumes a lot of manpower and material resources, and is inconvenient to operate during the video retrieval. Therefore, the hard disk video recording system based on digital storage technology has been developed for several years. So far, the technology has been fully mature, and it has solved the difficult problems of traditional image storage and playback.
Closed circuit monitoring system provides remote monitoring and control. According to the relevant national technical specifications, the system should be set up security camera, TV monitor, video recorders (or DVR) and image processor, the user can at any time any tune to see a picture of any remote control camera etc..Closed circuit monitoring system generally consists of three parts: front-end equipment, transmission part, back-end equipment (including control equipment and display equipment).The main components of closed-circuit monitoring system are: camera or image acquisition device, image transmission and control equipment, image processing and display equipment. Closed-circuit television monitoring system of the technical requirements are: the clarity of the camera, the system's transmission bandwidth, the video signal to noise ratio, television signal format, cameras achieve higher quality and operation function, as well as the environment of each part of the system to the extent.
