High-definition digital video monitoring device and monitoring method based on optical fiber network

Abstract

The invention discloses a high-definition digital video monitoring system based on a fiber-optic network and a monitoring method. The high-definition digital video monitoring system comprises an optical access subsystem, a decoding subsystem, a high-speed switching subsystem and output system, front-end cameras are connected with the optical access subsystem through an optical fibers, the input end of the decoding subsystem is connected with the first output end of the optical access subsystem, the output end of the decoding subsystem is connected with the first input end of the high-speed switching subsystem, the second output end of the optical access subsystem is connected with the second input end of the high-speed switching subsystem, the output end of the high-speed switching subsystem is connected with the output system, and EPON cameras, optical fiber self-healing ring network cameras or optical fiber HD-SDI (High Definition-Serial Digital Interface) cameras are adopted as the front-end cameras. The cameras are directly connected with a 'VAR3S digital video comprehensive management platform' (hereinafter referred to as VAR3S) through optical fibers, and the VAR3S carries out unified decoding, real-time display and network uploading.

Description

technical field [0001] The invention relates to optical fiber data transmission technology in the field of data communication and camera technology in the field of video monitoring, in particular to a high-definition digital video monitoring device and monitoring method based on an optical fiber network. Background technique [0002] With the continuous development of broadband services, the capacity of the existing MAN and access network is insufficient. For operators, the most fundamental and practical and effective way is to expand the capacity of the land network and access network of the city. [0003] Optical fiber network has very obvious advantages in this respect: [0004] ⑴ Large capacity: the working frequency of optical fiber is 8-9 orders of magnitude higher than the working frequency of current cables, so the developed capacity is large; [0005] (2) Small attenuation: The attenuation per kilometer of optical fiber is more than an order of magnitude lower tha...

AI Technical Summary

Problems solved by technology

If the traditional interface is still used, the intermediate switching equipment must be continuously added, making the whole system more and more complex, which is not conducive to image transmission and final quality

Chinese patent ZL200720106007.7 discloses a digital video integrated multi-service transmission switching platform, which cannot support high-definition uncompressed, non-blocking real-time transmission; cannot support standard high-definition mixed input, does not support IPC access, and cannot realize device topology self-networking

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