网络同步视频教学系统的一种新架构  

New Framework for Network Synchronization Video Teaching System

作　　者：赵洁[1,2] 姚金宝[3] 

机构地区：[1]成都大学工业制造学院,成都610106 [2]西南交通大学牵引动力国家重点实验室,成都610031 [3]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《现代科学仪器》2010年第5期45-49,共5页Modern Scientific Instruments

基　　金：基金项目成都大学校青年基金重点项目(2010XJZ03)资助

摘　　要：为了避免C/S结构和P2P分布式结构的网络教学系统需安装客户端的问题,克服传统以网页为载体的B/S结构的网络教学系统表达能力的局限性,提出了一种基于虚拟数据采集技术的多层B/S结构的网络同步视频教学系统架构。其核心是客户端由嵌入在浏览器中的Applet组件生成,服务器端由Servlet组件来实现。其原理是运用J2EE组件技术(Applet and Servlet)来实现远程连接和远程操作控制,使用虚拟数据采集技术来实现网络教学实时可视化。基于虚拟数据采集技术的网络同步视频教学系统架构具有免安装客户端、教学内容丰富、功能扩展性强等特点。In order to avoid the trouble of installing client server for C/S and P2P structure and overcome the limitation of poor expression ability for web page based B/S structure, a new framework for network synchronization video teaching system based on virtual data acquisition technique （VDAT） is proposed. The core technology is that client side could be created by the Applet embedded in the browser, and that the server side could be implemented by Servlet. The specific implementation for the framework refers to the J2EE component （Applet and Servlet） technology which implements the network link and remote operation, and the virtual data acquisition technique which plays an important role in visualization and synchronization for the network teaching. The VDAT-based network synchronization video teaching system is characterized by no client side installation, rich in teaching content and high function expansibility.

关 键 词：网络同步视频教学系统 B/S结构 虚拟数据采集技术 组件技术 

分 类 号：TP391.6[自动化与计算机技术—计算机应用技术] TP393.3[自动化与计算机技术—计算机科学与技术]