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首页> 外文会议>NAB broadcast engineering and information technology conference proceedings 2018 >Keeping Playout Systems in Sync to Ensure Uninterrupted Broadcast Operations
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Keeping Playout Systems in Sync to Ensure Uninterrupted Broadcast Operations

机译：使播出系统保持同步，以确保广播操作不中断

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摘要

Playout systems that originate linear televisionrnprogramming are often built with 1:1 redundancy for obviousrnreasons. The most common architecture involves buildingrntwo completely redundant ‘chains’ so that all automation,rnvideo, audio processing, graphics, closed captioning andrnstorage servers, etc. have a hot backup in the event of arnfailure. Both redundant chains are usually identical and arernoperated synchronously so that either the ‘A’ or ‘B’ chainrncan be taken to air at any time. This generally works well, butrnthere are limitations. For example, determining whatrnconstitutes a fault is not always obvious, which means thatrnhuman intervention is required on a 24x7 basis, andrnhardware redundancy does not always protect againstrnsoftware failures. This session will explore how multiplerndiverse TV program playout architectures can bernsynchronized to provide slipless redundancy for bothrnhardware and software failure, as well as automatedrnmonitoring by exception.
机译：产生线性电视节目编排的播放系统通常具有1：1冗余，以实现明显的原因。最常见的架构涉及构建两个完全冗余的“链”，以便在发生arnfailure时，所有自动化，视频，音频处理，图形，隐藏式字幕和存储服务器等都具有热备份。两个冗余链通常是相同的，并且同步同步，因此“ A”或“ B”链可以随时播出。这通常效果很好，但是有局限性。例如，确定故障的原因并不总是很明显，这意味着需要24x7的人为干预，并且硬件冗余并不总是可以防止软件故障。本次会议将探讨如何同步多种多样的电视节目播出架构，从而为硬件和软件故障以及异常情况下的自动监视提供无缝的冗余。

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