基于冲突识别的远程教育录播系统备保切换的设计与仿真

为了应对远程教育中微格录播系统数据传输过程中产生冲突导致数据中断的问题,保证系统工作的流畅进行,设计了冲突监测方案和备保切换模块,可实现实时监测系统,在产生冲突后快速切换至备保服务器继续传输数据。通过仿真证实系统可快速切换备保服务器,且切换时间与主机程序重启时间较短,可在保证用户录播视频质量的同时使微格录播系统满足数据传输要求。

Design and simulation for protection switching of remote education record/play-back system based on conflict identification

In order to solve the problem of data interruption caused by conflict produced during data transfer of microformat record/play-back system in remote education to ensure smooth working of the system,the conflict monitoring scheme and protec-tion switching module was designed to achieve the real-time monitoring system,which can quickly switch to the backup server to continue the data transmission when conflict occurs. The simulation result confirms that the system can quickly switch to the backup security server,and the switching time is short same as the host program restart time. It can ensure the users′ video re-cord/play-back quality while the microformat record/play-back system meets the data transmission requirements. Abstract： In order to solve the problem of data interruption caused by conflict produced during data transfer of microformat record/play-back system in remote education to ensure smooth working of the system, the conflict monitoring scheme and protection switching module was designed to achieve the real-time monitoring system, which can quickly switch to the backup server to continue the data transmission when conflict occurs. The simulation result confirms that the system can quickly switch to the backup security server, and the switching time is short same as the host program restart time. It can ensure the users＇ video record/play-back quality while the microformat record/play-back system meets the data transmission requirements.