Audit and system certification professional technical service organization
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The monitoring system is also called closed-circuit television monitoring system. Closed-Circuit Television (CCTV), a typical monitoring system is mainly composed of front-end audio and video acquisition equipment, audio and video transmission equipment, back-end storage, control and display equipment, among which the back-end equipment can be further divided into central control equipment and sub-control equipment. The front and back end devices can be constructed in a variety of ways, and the connection between them (also known as the transmission system) can be realized through coaxial cable, twisted pair, optical fiber, microwave, wireless and other ways.