The difference between IP monitoring system and analog system
The typical TV monitoring system consists of two parts, the front end device and the back end device. Among them, the back-end device can be further divided into central control equipment and sub control device. The front and rear devices have many ways of forming, and the connection between them (also known as the transmission system) can be achieved by cable, fiber, or microwave. The television monitoring system consists of four parts, the camera part (and sometimes Mike), the transmission part, the control part, and the display and recording part. In each section, it contains more specific equipment or parts.
Compared with the traditional analog control mode, IP control system is based on digital video processing technology as the core, comprehensive utilization of photoelectric sensor, digital image processing, embedded computer system, data transmission network, automatic control and artificial intelligence technology, a new digital control mode, it not only has the second generation of quasi digital video monitoring mode with the computer processing ability of digital information, anti-interference ability, quick query records, clear video image and single display multiple images and other advantages, and relying on the network, really exert the superiority of broadband network through the IP network, the monitoring target monitoring center and any combination of local network can reach into a system to adapt to the demand for real, remote, real-time, centralized video surveillance system, its core technology is Network video server.
The analog monitoring mode has been declining in recent years. The main defects are that the transmission channel is too expensive to install, the system structure is complex, the monitoring center equipment is various, and the operation is trivial. The system consists of cameras, video recorders, TV wall, surveillance control matrix, image processor, decoder and other auxiliary equipment, the coaxial cable for image transmission medium to the twisted pair as the control signal transmission medium, equipments, complex structure, expansion of the poor, and most of the equipment is a special equipment that requires the operator by training have the corresponding operation ability.
