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三网技术在远程教学中的应用

Application of three network's technology in distance teaching
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摘要 针对远程教学的发展现状,提出了一种新的远程教学的实现方案.该方案利用三网(IP网、电话网和电视网)技术,将远程教学课堂的电子黑板、课件及实时课堂视音频等信息实时压缩成高效的DVB码流,并通过有线电视传输系统将这些信息传送到各有线电视用户家中,学员在家中就可以利用计算机、机顶盒实时收看和保存相关的课堂信息,同时也可通过网络(宽带IP,PSTN网)进行实时网上提问,教师可以通过网络实现实时视音频答疑. A new project, aimed at the development of distance teaching, is given in this paper. Electric blackboard, courseware, real-time video and audio signals of classroom teaching are coded and compressed into a high efficient DVB code-stream. The digital signal of DVB codestream is transmitted into homes of CATV-users by means of three-networks (IP-network, telephone-network, CATV-network) technology. Students can browse and save some teaching information with computer or CATV-TopSet. At the same time, mutual communication of questions and answers from students and teachers could also be realized with real-time video and audio on the network.
出处 《浙江工业大学学报》 CAS 2005年第4期399-402,共4页 Journal of Zhejiang University of Technology
关键词 视频压缩 数字广播 远程教育 网络技术 video compress digital broadcast distance teaching technology of network
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  • 1Fall, K., Varadhan, K. NS notes and documentation. Technical Rapport, The VINT Project, 1999.
  • 2Aglet. http://www.trl.ibm.co.jp/aglets/.
  • 3Jones, K. Internet's SNMP and ISO's CMIP Protocols for Network Management. International Journal of Network Management, 1994. 130~137.
  • 4Stallings, W. SNMP, SNMPv2, and CMIP. The practical guide to network-management standards. Addison Wesley, 1993.
  • 5Waldbusser, S. Remote network monitoring management information base. RFC 1757, 1995.
  • 6Tennenhouse, D., Smith, J., Sincoskie, W., et al. A survey of active network research. IEEE Communications Magazine, 1997, 35(1):80~86.
  • 7OMG. The Common Object Request Broker Architecture and Specification. 1995.
  • 8Wellens, C., Auerbach, K. Towards useful management. The Simple Times, 1996,4(3):1~6.
  • 9Bieszcad, A., Pagurek, B., White, T. Mobile agents for network management. IEEE Communications Surveys, 1998,1(1):2~9.
  • 10Baldi, M., Picco, G.P. Evaluating the tradeoffs of mobile code design paradigms in network management applications. In: Kemmerer, R., Futatsugi, K., eds. Proceedings of the 20th International Conference on Software Engineering (ICSE'98). ACM Press, 1998. 146~155.

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