Command center terminal hot standby method, device and system

Abstract

The invention relates to a command center terminal hot standby method, a command center terminal hot standby device and a command center terminal hot standby system. The command center terminal hot standby method comprises the following steps: converting an analog signal transmitted by front-end equipment into an original optical signal and copying multiple paths of copied optical signals which are the same as the original optical signal; carrying out the same initialization setting on at least one optical fiber integrated terminal, and carrying out signal synchronization and signal conversion on the plurality of optical fiber integrated terminals; monitoring the operation states of all the optical fiber integrated terminals in real time; and decoding the optical signal sent by the at least one optical fiber integrated terminal, converting the optical signal into an analog signal, and outputting the analog signal to terminal equipment. The system has the advantages that signal source shunting and merging and signal source synchronous control are added, real-time hot standby of the system is achieved, and the reliability of system operation is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of command center terminal backup, and in particular relates to a command center terminal hot backup method, device and system. Background technique [0002] With the acceleration of urbanization in my country, a large number of people are gathering in cities, which has put high requirements on the comprehensive management capabilities of my country's management departments. Therefore, the command center has more and more needs for projects with information aggregation, command decision-making, and situation research and judgment. Traditional command center projects often use analog signals to realize the access of various signals. In this way, control, operation, maintenance, The system docking is relatively cumbersome, so a distributed system is produced. The distributed system solves the access problem of various analog signals, making operation, maintenance, control and system connection easier, but at ...

AI Technical Summary

Problems solved by technology

Therefore, there are more and more demands for command centers that have information aggregation, command decision-making, and situation analysis and judgment. Traditional command center projects often use analog signals to realize the access of various signals. This method controls, operates, maintains, The system docking is relatively cumbersome, so a distributed system is produced

The distributed system solves the access problem of various analog signals, making operation, maintenance, control and system docking easier, but at the same time, the distributed system also brings new problems, that is, high delay

In order to solve the problem of high delay, the optical fiber integrated terminal is applied to the command center project. The system architecture of the optical fiber integrated terminal belongs to the star architecture, which requires extremely high reliability of the integrated terminal. Once the terminal fails, it will cause The entire system is down, which seriously threatens the normal use of the system

The current optical fiber integrated terminal cannot perform real-time backup and seamless switching, and cannot guarantee the safe and stable operation of the entire system in an application scenario such as a command center that requires extremely high equipment reliability.

Once the optical fiber integrated terminal is down, the entire audio and video signals, control signals, data signals, etc. will not be transmitted, which will have a great impact on the system

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