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Broadcasting PGM (Probabilistic Graphical Model) master-slave output one-click emergency system and method

A keyed, emergency handling technology used in the field of redundant systems

Active Publication Date: 2012-12-19
CHINA CENTRAL TELEVISION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of the prior art, the present invention proposes a one-button emergency system and method for broadcasting PGM master and backup outputs. With dual-backup program signal links and multiple backup program signal sources, when a single point of equipment fails, without the need to manually judge the fault point, it can be switched quickly by simply moving a switch. Skip the fault link to ensure the broadcast of normal signals

Method used

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  • Broadcasting PGM (Probabilistic Graphical Model) master-slave output one-click emergency system and method
  • Broadcasting PGM (Probabilistic Graphical Model) master-slave output one-click emergency system and method
  • Broadcasting PGM (Probabilistic Graphical Model) master-slave output one-click emergency system and method

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Embodiment 1

[0061] This embodiment is a one-button emergency system for broadcasting PGM main and backup outputs. The system block diagram is as follows: figure 1 shown. The thickest thick solid line in the figure indicates the main program signal link, the slightly thinner thick solid line indicates the backup signal link, the thicker double-dot dash line indicates the main control signal link, and the thinner single-dot dash line indicates The device control signal link, the dotted line indicates the GPI control link, and the short horizontal line indicates the heartbeat line. The system described in this embodiment includes: an anchor control workstation and a standby broadcast control workstation connected to an external program list editing workstation and its database. Control the synchronization of emergency operation, the described standby control workstation is provided with a GPI board, and the GPI board is connected to the control port of the main switch; the main control work...

Embodiment 2

[0073] This embodiment is a one-button emergency method using the PGM master and backup output of the system described in Embodiment 1. The flow chart is as follows figure 2 shown. The basic idea of ​​the method described in this embodiment is: to separate the main link and the backup link for integration, and the function of the separation is that a 2×1 switch can be used at the end of the system for quick selection. The purpose of the synthesis is to enable several important nodes in the main link and the backup link to back up each other independently, that is, if a node in the main link is abnormal, it can be replaced by the corresponding node in the backup link .

[0074] The steps of the method described in this embodiment are as follows:

[0075] The step of loading preset system configuration parameters: used to configure the system with preset parameters before the system runs, and the configuration parameters include the following three parts:

[0076] 1) The mai...

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Abstract

The invention relates to a broadcasting PGM (Probabilistic Graphical Model) master-slave output one-click emergency system and a broadcasting PGM master-slave output one-click emergency method. The system is of a structure that master and slave program signal links are respectively formed by master and slave broadcast control workstations, master and slave inverters, master and slave video servers, a plurality of video-audio distributors and master and slave switching equipment; and the master and slave program signal links are respectively connected with two input ends of a 2*1 switch arranged on a control panel at the output end of the master switching equipment. According to the invention, a control signal link and the program signal links are adopted; a last-level signal inversion control mode adopted by a conventional broadcasting system is changed; once the abnormal condition of a current link broadcast signal is monitored, the 2*1 switch can be directly inverted to a backup link by the universal control panel; the complex fault judgment process is saved; the working pressure of a broadcasting operator on duty in a television station is reduced; the fault judgment process is simplified; the timely observation and the rapid processing on a fault are implemented; and a broadcasting accident is effectively avoided.

Description

technical field [0001] The invention relates to a one-button emergency system and method for broadcasting PGM main and backup outputs, and is a redundant system and a switching method of the redundant system applied to a video broadcasting system of a computer network. The broadcasting of the PGM signal here can be understood as the final output signal. Background technique [0002] Usually, broadcasting security is an extremely important consideration when TV stations or other audio-visual communication organizations design and build broadcasting systems. It is mainly reflected in whether the broadcast system adopts a complete redundant backup structure to ensure that there is no single failure point for key equipment; whether it has the ability to accurately judge and deal with system failures in a timely manner. At present, for the broadcasting system of TV stations, the output of the main and standby switching equipment usually comes from the same broadcasting signal so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/222H04N5/268H04N21/21H04N21/24
Inventor 丁文华姚威宋宜纯宋蔚商同陈震阙晟华冯坤郭敏任林
Owner CHINA CENTRAL TELEVISION
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