04级通信技术二班 柳长发 校园网中视频点播系统应用修改后.doc

石家庄邮电职业技术学院 毕业论文 校园网中视频点播系统应用 2009 届 电信工程 系 专业 通信技术 学号 姓名 柳长发 指导教师 张先迅 完成日期 2008年12月28日 石家庄邮电职业技术学院 毕业论文任务书 石家庄邮电职业技术学院 毕业论文评定书 摘 要 视频点播系统是一种交互式点播系统。可以提供方便独立的用户交互功能。论文对其技术原理进行了分析，并阐述出在校园网环境下VOD系统的运行，分析了其在日常教学中的广泛应用。 随着互联网的快速发展，报纸、杂志、广播、电视等传统媒体纷纷触网，如何在新形势下，更好地发挥提高高校校园网的服务质量，实现高校校园网更好更快的传播以及对校园媒体资源进行优化重组，形成优势互补，突出整体效能，利用校园网络进行校园视频点播，网络视频点播是综合了计算机技术、通讯技术、多媒体技术而迅速发展起来的一门综合性技术。它利用了网络和视频技术的优势，彻底改变了过去收看校园视频的被动方式，实现了校园视频节目按需收看和任意播放，为用户提供实时、交互、按需点播服务的系统。利用校园网建设VOD系统可以为广大师生提供在线的视频节目的点播服务，可广泛用于日常的教学中来。 Abstract The video on demand system is one kind based on the unicast interactive selection and broadcast system. May provide the convenience independent user interactive function. The paper has carried on the analysis to its technical principle, and elaborated under the campus net environment the VOD system’s movement, has analyzed it in the daily teaching teaching widespread application. Along with Internet’s fast development, traditional media and so on newspaper, magazine, broadcast, television touches the net in abundance, how under the new situation, to display well improves the university campus net’s grade of service, realizes the university campus net to be better a quicker dissemination as well as carries on the optimized reorganization to the campus media resources, forms the survival of the fittest, the prominent overall potency, is the question which the present university west remote border district colleges and universities urgent need to solve particularly. Carried on the campus video frequency news selection and broadcast using the campus network, the network video on demand synthesized the computer technology, the mechanics of communication, the multimedia technologies, but a rapidly expand comprehensive technology. It has used the network and the video technique superiority, about face past watched th