流媒体技术在远程教育中的应用分析-软件工程专业论文.docxVIP

流媒体在远程教育中的应用研究 流媒体在远程教育中的应用研究 摘要 随着Internet飞速发展，流媒体的应用也越来越广泛。流媒体的应用成为 现代远程教育的一个重要的组成部分。， 本文第一章介绍流媒体的相关技术，包括流媒体的概念、流媒体的传输方式、 流媒体技术原理以及流媒体的播放方式。第二章介绍基于IP(Internet Protoc01)的多媒体通信网，在介绍IP网络的各种协议的基础上，重点讨论适合 于流媒体传输的实时传输协议(RTP Real—time Transport Protoc01)、实时传 输控制协议(RTCP Real-timeTransport Control Protoc01)、资源预留协议(RSVP Resource Reservation Protoc01)等网络协议。第三章讨论IP网络的服务质量， 并且深入讨论集成服务和区分服务及其优缺点。第四章在集成服务和区分服务的 基础上提出一个适合于流媒体传输的网络框架结构。这个结构吸取集成服务和区 分服务的优点，使得网络在保证流媒体服务质量的同时，还有很好的扩展性。第 五章在微软的Windows Media的流媒体服务框架的基础上，提出天津大学网络教 育学院的流媒体服务框架结构。这个框架结构是对微软的Windows Media流媒体 服务框架的扩展。并且对课件的具体实现的关键技术做了详细的分析。第六章对 流媒体在远程教育中应用做了展望。 关键字：流媒体、服务质量、区分服务、集成服务、单播、广播、多播 。／ 、／ v—：’ ＼／ The The Research of Streaming Media Technologies in Distance Education Abstract With the rapid spread of Internet，the application of streaming media is becoming more and more popular．The application of streaming media plays an important role in the modern distance education． The first chapter of this paper gives some technologies about streaming media which include the concept of streaming media，the transport styles of streaming media,the theory of streaming media and the styles of playing back of streaming media．The second chapter introduces the multimedia networks based on IP．Some network protocols， such as RTP，眦P and RSVP，are discussed in this chapter．In the third chapter，we study the QUS(Quality of Service)of IP networks．The advantages and disadvantages of DiffServ and IntServ are put forward in this paper．A network framework which is suit曲le for transmission of streaming media is given in the fourth chapter．The framework takes the advantages both of IntServ and DiffServ．The fifth chapter describes the streaming media framework taking by Network Education College of Tianjin University．The framework is the extension of Microsoft Windows Media and the key technologies of the framework construction and courseware making are discussed in this chapter too．The expectation of application is put forward in the sixth chapter