Audio-video monitor system based on optical fiber transmission

Abstract

The invention relates to an audio-video monitor system based on optical fiber transmission. The audio-video monitor system comprises a front end camera, a pickup, an optical fiber transmission module, a digital video recorder and a displayer. The front end camera and the pickup are respectively connected with input ends of the optical fiber transmission module; output ends of the optical fiber transmission module are connected with the digital video recorder and the displayer; audio signals and video signals collected by the front end camera and the pickup are transmitted to the digital video recorder and the displayer through the optical fiber transmission module; the digital video recorder stores the received signals; and the displayer displays the received signals in real time. Compared with the prior art, the audio-video monitor system has the advantages of large message capacity, long transmission distance, strong anti-electromagnetic interference ability, good safety and so on.

Description

technical field [0001] The invention relates to a monitoring device, in particular to an audio and video monitoring system based on optical fiber transmission. Background technique [0002] Surveillance technology, as an indispensable security service in modern society, is currently widely used in many squares, shopping malls, stations, banks or underground parking lots, etc., so as to achieve multiple purposes such as anti-theft, recording, and traffic guidance. The traditional video surveillance system is an analog video surveillance system. The transmission of the signal collected by the camera mainly adopts analog coaxial cable, twisted pair, etc. Such transmission has some disadvantages: [0003] (1) The transmission distance is short, and the farthest transmission distance does not exceed 1000 meters when using SYV75-9; [0004] (2) The transmission signal is single, and the video, audio, and control signals must be transmitted in different lines; [0005] (3) Using ...

AI Technical Summary

Problems solved by technology

[0003] (1) The transmission distance is short, and the farthest transmission distance does not exceed 1000 meters when using SYV75-9;

[0004] (2) The transmission signal is single, and the video, audio, and control signals must be transmitted in different lines;

[0005] (3) Using analog signal transmission, it is susceptible to interference from the external environment and has poor confidentiality;

[0006] (4) Line construction and maintenance costs are higher for cables than optical cables

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