| 基于电子白板的远程实时答疑系统 |
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| 引用本文： | 张立忠,张颜,李艳荣,王雅娜,冯静.基于电子白板的远程实时答疑系统[J].计算机工程与设计,2011,32(10):3561-3564. |
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| 作者姓名： | 张立忠 张颜 李艳荣 王雅娜 冯静 |
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| 作者单位： | 沈阳化工大学计算机科学与技术学院,辽宁沈阳,110142 |
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| 基金项目： | 沈阳化工大学教学研究基金项目 |
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| 摘 要： | 为解决现场答疑受时间和地点限制的问题,分析了现有答疑系统的不足,构建了一种以答疑双方为对等客户端的远程实时答疑系统。将TCP协议和UDP协议相结合,采用双协议三线程方法,实现了客户端动态IP地址的自动获取及通讯连接。引入电子白板技术,实现文本与图形模式的同步交流,体现了传统板书讲解特点。提出教师答疑评价方法,为教师和教学管理部门提供考核依据。在Internet中测试的结果表明,该系统能够提供远程在线答疑,具有较好的方便性和实用性。
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| 关 键 词： | 远程实时答疑 电子白板 点对点通讯 答疑评价 |
Remote real-time answering system based on electronic whiteboard |
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| ZHANG Li-zhong,ZHANG Yan,LI Yan-rong,WANG Ya-na,FENG Jing.Remote real-time answering system based on electronic whiteboard[J].Computer Engineering and Design,2011,32(10):3561-3564. |
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| Authors: | ZHANG Li-zhong ZHANG Yan LI Yan-rong WANG Ya-na FENG Jing |
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| Affiliation: | ZHANG Li-zhong,ZHANG Yan,LI Yan-rong,WANG Ya-na,FENG Jing(College of Computer Science and Technology,Shenyang University of Chemical Technology,Shenyang 110142,China) |
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| Abstract: | To solve answering face to face restricted by time and place,shortcomings of current answering system are analyzed,and a remote real-time answering system for peer-to-peer clients is constructed.To automatically extract dynamic IP address and realize communication connection for clients,TCP is combined with UDP,and dual-protocol and triple-thread method are also employed.Electronic whiteboard technology is introduced to carry out synchronous communication based on text mode and graphic mode and embody chara... |
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| Keywords: | remote real-time answering electronic whiteboard point to point communication answering evaluation |
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