支持微型电子白板的网络教学系统的设计与实现
|
摘要
进入数字化、信息化时代的二十一世纪,人们对教育的需求日益增加。网络教学作为一种新的教学模式,将最大限度利用现有的教育资源,是实现高等教育、职业技术教育的大众化、现代化、终身化和国际化的新型教育形式和必然途径。网络教学系统是网络教学的信息交流平台,为网络教学的发展提供了最大的动力支持。当前的网络教学系统都无法提供对手写输入的支持,如果在网络教学系统中融入微型电子白板,可在网络教学中实现手写输入和动态交互,为网络答疑、网络批交作业提供了便利条件。
本文设计实现了支持微型电子白板手写输入功能的网络教学系统,主要包括微型电子白板的手写功能软件、在线作业子系统和网络答疑子系统。主要工作在于:(1)本文对微型电子白板的手写功能软件进行了设计,实现了实时书写和模拟鼠标的功能,并在校准过程中采用了纠偏算法,实现了对信号笔书写笔迹的精确定位。(2)本文搭建了基于B/S架构,支持微型电子白板的在线作业子系统,并完成了在线作业子系统各个功能模块的总体设计和软件实现。由于引入了微型电子白板,本文彻底解决了网络作业系统中手写输入的难题。(3)本文搭建了基于C/S架构,集成网络白板多人手写、音视频通信、演示控制和网上浏览等于一体的支持微型电子白板的网络答疑子系统。网络答疑子系统分成教师端、学生端以及服务器端,本文完成了对各端系统的架构设计和功能实现。
The dissertation has completed the partial contents of Jilin Province Science and Technology Development Plan Project "Research on the fundamental tool and application system of informationization teaching".
With the development of computer network technology, people's life, education and the mode of thinking all change along with it. The combination of network and education has raised the revolution in the concept of education. Network teaching, as a new teaching mode, has broken space-time concept, and fully aroused the enthusiasm which the student independently studies, is advantageous to the student individuality development and the innovation ability raise. The network teaching system is the information exchange platform for network teaching, has provided the biggest power support for the network teaching development, therefore the research on network teaching system, more and more receives social attention. Subminiature wireless localization electronic whiteboard is the newest handwriting input equipment. It mainly completes the basic functions of real-time handwriting input, the computer screen handwriting and operating the computer screen. Integrating subminiature electronic whiteboard into the network teaching system realizes network hand-written teaching, which manifests advanced and the convenient teaching mode that greatly improves the teaching quality.
The dissertation has designed and realized a network teaching system supporting miniature electronic whiteboard. The dissertation introduces the miniature electronic whiteboard to the design of the network teaching system. And the network teaching system supporting miniature electronic whiteboard is divided into three parts: the miniature electronic whiteboard hand-written function software, and the on-line subsystem and network Q/A subsystem. The main work and contribution as follows:
(1) Hand-written software of the miniature electronic whiteboard is designed in the paper. The research on the subminiature electronic whiteboard software used in computer realizes the basic functions that including real-time writing and simulating the mouse. The algorithm correcting an error is used in the process of calibration. which realizes the precise localization on the handwriting written by the signal pen, all that provide the better technical guarantee for the realization of handwriting input function in network teaching system.
(2) Design and implementation of online homework subsystem are based on the B/S frame and supporting subminiature electronic whiteboard. It provides the web-based homework environment, and realizes non- paper homework. The system main modules includes: the homework assignment, the homework submission, the homework correction, the homework statistics, the search and inquiry, the homework forum, the excellent homework show, the teacher resources, the management and maintenance, the database design, the interface design jointing CSS and so on. Integrating subminiature electronic whiteboard into the online homework system which solves handwriting input that is universal existent question in network homework system, the computer screen handwriting and correcting handwriting homework online are realized.
(3) Design and implementation network Q/A subsystem are based on the C/S frame and supporting subminiature electronic whiteboard. It builds the real-time Q/A interactive platform between the teachers and students, which achieves excellent education resource sharing. The system divides into the server terminal, the teacher terminal and the student terminal, and detailed construction design and the functional design to every terminal system have been completed. The system main module includes: network electronic whiteboard multi- people sharing writing, audio and video communication, show and control, file transfer, internet browsing, database design, interface design using Xtreme Toolkit and so on.
The main contents of this paper are as follows:
In the first chapter, the dissertation outlines the research background, significance and present situation of the network teaching system supporting miniature electronic whiteboard. And the principal route of the system research is elaborated in detail. Finally, the main research content is proposed.
The second chapter has related in detail some technical thought and methods used in the system research.
The third chapter introduces the overall frame of the network teaching system supporting miniature electronic whiteboard. And to its three constituents, the miniature electronic whiteboard hand-written function software, the on-line work subsystem and the network Q/A subsystem has separately carried on the overall design.
The fourth chapter has carried on the modular analysis to the detailed realization of the miniature electronic whiteboard hand-written function software.
The fifth chapter analyzes the implementation in detail of the on-line work subsystem supporting miniature electronic whiteboard, with system running result pictures enclosed to partial modules. Finally related appraisal has been made to the subsystem.
The sixth chapter analyzes the implementation in detail of the network Q/A subsystem supporting miniature electronic whiteboard, with the running result pictures to the server port, teacher port and student port. Finally related appraisal has been made to the subsystem.
The seventh chapter is the summarization and expectation of this paper.
The innovations of this paper are as follows:
(1) The research on the the algorithm of calibration of the subminiature electronic whiteboard realizes the precise localization on the handwriting written by the signal pen.
(2) At present some teaching systems in the network only support the text input, but does not support the hand-written input. In order to solve this difficult problem, the dissertation integrates subminiature electronic whiteboard into the network teaching system, and realizes handwriting homework and handwriting Q/A in network teaching.
(3) The Q/A system in the network generally only includes the teacher terminal and the student terminal, the very big data transmission and the relay pressure are withstood by the teacher terminal, which must affect the teacher's real-time teaching. The network Q/A system researched by the dissertation was divided into the server terminal, the teacher terminal and the student terminal, a large amount of data was relayed by the the server terminal, which can reduce the data relay pressure, so the transmission speed of the network data can be improved greatly.
本文设计实现了支持微型电子白板手写输入功能的网络教学系统,主要包括微型电子白板的手写功能软件、在线作业子系统和网络答疑子系统。主要工作在于:(1)本文对微型电子白板的手写功能软件进行了设计,实现了实时书写和模拟鼠标的功能,并在校准过程中采用了纠偏算法,实现了对信号笔书写笔迹的精确定位。(2)本文搭建了基于B/S架构,支持微型电子白板的在线作业子系统,并完成了在线作业子系统各个功能模块的总体设计和软件实现。由于引入了微型电子白板,本文彻底解决了网络作业系统中手写输入的难题。(3)本文搭建了基于C/S架构,集成网络白板多人手写、音视频通信、演示控制和网上浏览等于一体的支持微型电子白板的网络答疑子系统。网络答疑子系统分成教师端、学生端以及服务器端,本文完成了对各端系统的架构设计和功能实现。
The dissertation has completed the partial contents of Jilin Province Science and Technology Development Plan Project "Research on the fundamental tool and application system of informationization teaching".
With the development of computer network technology, people's life, education and the mode of thinking all change along with it. The combination of network and education has raised the revolution in the concept of education. Network teaching, as a new teaching mode, has broken space-time concept, and fully aroused the enthusiasm which the student independently studies, is advantageous to the student individuality development and the innovation ability raise. The network teaching system is the information exchange platform for network teaching, has provided the biggest power support for the network teaching development, therefore the research on network teaching system, more and more receives social attention. Subminiature wireless localization electronic whiteboard is the newest handwriting input equipment. It mainly completes the basic functions of real-time handwriting input, the computer screen handwriting and operating the computer screen. Integrating subminiature electronic whiteboard into the network teaching system realizes network hand-written teaching, which manifests advanced and the convenient teaching mode that greatly improves the teaching quality.
The dissertation has designed and realized a network teaching system supporting miniature electronic whiteboard. The dissertation introduces the miniature electronic whiteboard to the design of the network teaching system. And the network teaching system supporting miniature electronic whiteboard is divided into three parts: the miniature electronic whiteboard hand-written function software, and the on-line subsystem and network Q/A subsystem. The main work and contribution as follows:
(1) Hand-written software of the miniature electronic whiteboard is designed in the paper. The research on the subminiature electronic whiteboard software used in computer realizes the basic functions that including real-time writing and simulating the mouse. The algorithm correcting an error is used in the process of calibration. which realizes the precise localization on the handwriting written by the signal pen, all that provide the better technical guarantee for the realization of handwriting input function in network teaching system.
(2) Design and implementation of online homework subsystem are based on the B/S frame and supporting subminiature electronic whiteboard. It provides the web-based homework environment, and realizes non- paper homework. The system main modules includes: the homework assignment, the homework submission, the homework correction, the homework statistics, the search and inquiry, the homework forum, the excellent homework show, the teacher resources, the management and maintenance, the database design, the interface design jointing CSS and so on. Integrating subminiature electronic whiteboard into the online homework system which solves handwriting input that is universal existent question in network homework system, the computer screen handwriting and correcting handwriting homework online are realized.
(3) Design and implementation network Q/A subsystem are based on the C/S frame and supporting subminiature electronic whiteboard. It builds the real-time Q/A interactive platform between the teachers and students, which achieves excellent education resource sharing. The system divides into the server terminal, the teacher terminal and the student terminal, and detailed construction design and the functional design to every terminal system have been completed. The system main module includes: network electronic whiteboard multi- people sharing writing, audio and video communication, show and control, file transfer, internet browsing, database design, interface design using Xtreme Toolkit and so on.
The main contents of this paper are as follows:
In the first chapter, the dissertation outlines the research background, significance and present situation of the network teaching system supporting miniature electronic whiteboard. And the principal route of the system research is elaborated in detail. Finally, the main research content is proposed.
The second chapter has related in detail some technical thought and methods used in the system research.
The third chapter introduces the overall frame of the network teaching system supporting miniature electronic whiteboard. And to its three constituents, the miniature electronic whiteboard hand-written function software, the on-line work subsystem and the network Q/A subsystem has separately carried on the overall design.
The fourth chapter has carried on the modular analysis to the detailed realization of the miniature electronic whiteboard hand-written function software.
The fifth chapter analyzes the implementation in detail of the on-line work subsystem supporting miniature electronic whiteboard, with system running result pictures enclosed to partial modules. Finally related appraisal has been made to the subsystem.
The sixth chapter analyzes the implementation in detail of the network Q/A subsystem supporting miniature electronic whiteboard, with the running result pictures to the server port, teacher port and student port. Finally related appraisal has been made to the subsystem.
The seventh chapter is the summarization and expectation of this paper.
The innovations of this paper are as follows:
(1) The research on the the algorithm of calibration of the subminiature electronic whiteboard realizes the precise localization on the handwriting written by the signal pen.
(2) At present some teaching systems in the network only support the text input, but does not support the hand-written input. In order to solve this difficult problem, the dissertation integrates subminiature electronic whiteboard into the network teaching system, and realizes handwriting homework and handwriting Q/A in network teaching.
(3) The Q/A system in the network generally only includes the teacher terminal and the student terminal, the very big data transmission and the relay pressure are withstood by the teacher terminal, which must affect the teacher's real-time teaching. The network Q/A system researched by the dissertation was divided into the server terminal, the teacher terminal and the student terminal, a large amount of data was relayed by the the server terminal, which can reduce the data relay pressure, so the transmission speed of the network data can be improved greatly.
引文
[1]Henry F.Kelly,Michael K.Ponton,Alfred P.Rovai.A comparison of student evaluations of teaching between online and face-to-face courses[J].The Internet and Higher Education,2007,10(2):89-101.
[2]Paul Ginns,Robert Ellis.Quality in blended learning:Exploring the relationships between on-line and face-to-face teaching and learning[J].The Internet and Higher Education,2007,10(1):53-64.
[3]Gayani Samarawickrema,Elizabeth Stacey.Adopting Web-Based Learning and Teaching:A case study in higher education[J].Distance Education.Melbourne,2007,28(3):313-333.
[4]Peter Orbak.An Experimental System for Distributed Classroom[J].Education.Computer Networks,2000,34(4):843-850.
[5]Beth L.Hewett.Synchronous online conference-based instruction:A study of whiteboard interactions and student writing[J].Computers and Composition,2006,23(1):4-31.
[6]陈华,聂钢,刘萱.对美国在线作业系统WebAssign的研究与启示[J].现代图书情报技术,2005,(3):79-81.
[7]Webassign[EB].http://www.webassign.net.
[8]John Risley.WebAssign:Assessing Student Performance Any Time Any Where[J].UniServe Science News,1999,13(6):31-36.
[9]Hall,R.W.,Butler,L.G.,McGuire,S.Y.etc.Automated,web-based,second-chance homework[J].Journal of Chemical Education,2001,78(12):1704-1708.
[10]Scott Bonhan,Robert Beichner.Online Homework:Dose It Make a Difference?[J].The Physics Teacher,2001,39(5):293.
[11]Dufresne,R.J.,Mestre,J.,Hart,D.M etc.The effect of web-based homework on test performance in large enrollment introductory phisics courses[J].Journal of Computers in Mathematics and Science Teaching,2002,21(3):229-251.
[12]Hauk,S.,Segalla,A.Student perceptions of the web-based homework program Web Work in moderate enrollment college algebra classes[J].Journal of Computers in Mathematics and Science Teaching,2005,24(3):229-253.
[13]袁媛.基于新课程评定理念的在线作业系统的研究与实现[硕士学位论文].胡连:华南师范大学,2003.
[14]DM4605微型电子白板产品介绍[EB].http://www.jludm.com/cp.php?id=53.
[15]尹万宇.微型无线定位电子白板中的低噪声电路设计与实现[硕士学位论文].王树勋:吉林大学,2007.
[16]朱小社,邱春红.C/S和B/S模式相结合的信息系统开发技术[J].张家口职业技术学院学报,2006,19(1):72-74.
[17]王惠兰.基于B/S模式的网络虚拟实验室设计方法及实例研究[硕士学位论文].赵宏伟:吉林大学,2005.
[18]张峰.基于C/S与B/S联合模式的综合教学管理系统[硕士学位论文].关立行,杜启武:西安工业学院,2003.
[19]Asp帮助手册[EB].http://www.leftworld.net/online/asp/index.html.
[20]戎马工作室编著.Dreamweaver 8与ASP动态网站开发自学导航[M].北京:机械工业出版社,2006:31-41.
[21]杨忠宝.网络教学与考试系统的设计与实现[硕士学位论文].董立岩:吉林大学,2005.
[22]闫斐,柴茂.ActiveX技术综述[J].山西煤炭管理干部学院学报,2005,18(1):99-100.
[23]侯俊杰.深入浅出MFC[M].武汉:华中科技大学出版社,2001:324-326,406-407.
[24]Microsoft Developer NetWork[K].OnlineHelp,2000.
[25]徐晓刚,高兆法,王秀娟等编著.Visual C++6.0入门与提高[M].北京:清华大学出 版社,1999:120-128.
[26]陈冬梅.基于C/S的实时网络监控软件的开发[硕士学位论文].高孝洪:武汉理工大学,2005.
[27]陆卫忠,刘文亮等编著.C++Builder 6程序设计教程[M].北京:科学出版社,2005:268-280.
[28]许明.基于C/S结构网络游戏的通信协议的研究与实现[硕士学位论文].王越先:东北大学,2005.
[29]陈立红.基于ASP技术的在线作业收发系统的研究[J].信息技术,2005,(10):117-119.
[30]莫足琴,谭远猛.基于C/S的高校评教管理信息系统的设计与开发[J].十堰职业技术学院学报,2006,19(5):77-79.
[31]用delphi实现浏览器中文件的上传[EB].http://www.xrss.cn/Dev/Delphi/20071218354.Html.
[32]李光明,王玲,刘瑞霞.ActiveForm在网络编程中的应用[J].微计算机应用,2005,26(4):414-417.
[33]高军,李晓明,张莲梅.ActiveForm技术开发电力系统Web模式[J].高电压技术,2003,29(9):39-43.
[34]徐武.CSS技术住HTML中的应用[J].河南职业技术师范学院学报,2004,32(1):62-63
[35]Masaki Nakagawa,Koichiro Hotta,Hirokazu Bandou etc.A revised human interface and educational applications on ideaboard[C].CHI'99 extended abstracts on Human factors in computing systems,1999:15-16.
[36]Jonathan G.Computer supported cooperative work:history and focus[J].IEEE computer,1999,27(5):19-26.
[37]Dave Berque,Andrew Hutcheson,David K.Johnson.The design of an interface for student note annotation in a networked electronic classroom[J].Journal of Network and Computer Applications,2000,23(2):77-91.
[38]张幸,殷继彬,肖幪.基于手写笔的电子白板系统的研究与实现[J].北京石油化工学院学报,2005,13(2):9-12.
[39]朱羽,王珊,唐伟.基于电子白板的远程教育系统的设计与实现[J].河北大学学报(自然科学版),2003,23(3):321-325.
[40]顾俊杰,曹宁.C/S模式下电子白板系统的设计与实现[J].河海大学常州分校学报,2005,19(1):57-60.
[41]彭绪富,余洁.共享白板系统的图形绘制与传输控制[J].高等函授学报(自然科学版),2005,19(6):30-34.
[42]王坤侠,吴观茂,万强兵.基于校园网的实时动态答疑辅导系统[J].安徽理工大学学报(自然科学版),2004,24(3):50-54.
[43]Ricardo Machado Leite de Barros,Tiago Guedes Russomanno.A method to synchronise video cameras using the audio band[J].Journal of Biomechanics,2006,39(4):776-780.
[44]求是科技编著.Visual C++音视频编解码技术及实践[M].北京:人民邮电出版社,2006:334-412.
[45]颜彦,陈健.ITU-TG.729a语音编解码器的实时实现[J].数据采集与处理,2001,16(4):408-411.
[46]Chuck Wook著,梁普选,梁津,刘玉芬等译.Visual C++6.0数据库编程大全[M].北京:电子工业出版社,2000:59-108.
[47]孙晓刚,韩东等编著.面向软件工程的Visual C++网络程序开发[M].北京:清华大学出版社,2004:1-41.
[48]丁展,刘海英等编著.Visual C++网络通信编程实用案例精选[M].北京:人民邮电出版社,2004:1-36.
[49]马长青,苏庆堂,刘贤喜.用WinSock开发C/S间的网络通信程序[J].农业网络信息,2004,(1):23-27.
[50]Xtreme Toolkit Professional Edition[EB].http://www.codeproject.com/KB/showcase/codejock01.aspx.
[51]赵毅.网络教学系统的设计与实现方法[硕士学位论文].张越:南京理工大学,2001.
[52]王骥.基于Web下的远程教学系统的设计与实现[硕士学位论文].付晓江:吉林大学,2006.
[53]张立红.基于ASP技术的网络教学系统的设计与实现[硕士学位论文].孙华志:天津师范大学,2005.
[2]Paul Ginns,Robert Ellis.Quality in blended learning:Exploring the relationships between on-line and face-to-face teaching and learning[J].The Internet and Higher Education,2007,10(1):53-64.
[3]Gayani Samarawickrema,Elizabeth Stacey.Adopting Web-Based Learning and Teaching:A case study in higher education[J].Distance Education.Melbourne,2007,28(3):313-333.
[4]Peter Orbak.An Experimental System for Distributed Classroom[J].Education.Computer Networks,2000,34(4):843-850.
[5]Beth L.Hewett.Synchronous online conference-based instruction:A study of whiteboard interactions and student writing[J].Computers and Composition,2006,23(1):4-31.
[6]陈华,聂钢,刘萱.对美国在线作业系统WebAssign的研究与启示[J].现代图书情报技术,2005,(3):79-81.
[7]Webassign[EB].http://www.webassign.net.
[8]John Risley.WebAssign:Assessing Student Performance Any Time Any Where[J].UniServe Science News,1999,13(6):31-36.
[9]Hall,R.W.,Butler,L.G.,McGuire,S.Y.etc.Automated,web-based,second-chance homework[J].Journal of Chemical Education,2001,78(12):1704-1708.
[10]Scott Bonhan,Robert Beichner.Online Homework:Dose It Make a Difference?[J].The Physics Teacher,2001,39(5):293.
[11]Dufresne,R.J.,Mestre,J.,Hart,D.M etc.The effect of web-based homework on test performance in large enrollment introductory phisics courses[J].Journal of Computers in Mathematics and Science Teaching,2002,21(3):229-251.
[12]Hauk,S.,Segalla,A.Student perceptions of the web-based homework program Web Work in moderate enrollment college algebra classes[J].Journal of Computers in Mathematics and Science Teaching,2005,24(3):229-253.
[13]袁媛.基于新课程评定理念的在线作业系统的研究与实现[硕士学位论文].胡连:华南师范大学,2003.
[14]DM4605微型电子白板产品介绍[EB].http://www.jludm.com/cp.php?id=53.
[15]尹万宇.微型无线定位电子白板中的低噪声电路设计与实现[硕士学位论文].王树勋:吉林大学,2007.
[16]朱小社,邱春红.C/S和B/S模式相结合的信息系统开发技术[J].张家口职业技术学院学报,2006,19(1):72-74.
[17]王惠兰.基于B/S模式的网络虚拟实验室设计方法及实例研究[硕士学位论文].赵宏伟:吉林大学,2005.
[18]张峰.基于C/S与B/S联合模式的综合教学管理系统[硕士学位论文].关立行,杜启武:西安工业学院,2003.
[19]Asp帮助手册[EB].http://www.leftworld.net/online/asp/index.html.
[20]戎马工作室编著.Dreamweaver 8与ASP动态网站开发自学导航[M].北京:机械工业出版社,2006:31-41.
[21]杨忠宝.网络教学与考试系统的设计与实现[硕士学位论文].董立岩:吉林大学,2005.
[22]闫斐,柴茂.ActiveX技术综述[J].山西煤炭管理干部学院学报,2005,18(1):99-100.
[23]侯俊杰.深入浅出MFC[M].武汉:华中科技大学出版社,2001:324-326,406-407.
[24]Microsoft Developer NetWork[K].OnlineHelp,2000.
[25]徐晓刚,高兆法,王秀娟等编著.Visual C++6.0入门与提高[M].北京:清华大学出 版社,1999:120-128.
[26]陈冬梅.基于C/S的实时网络监控软件的开发[硕士学位论文].高孝洪:武汉理工大学,2005.
[27]陆卫忠,刘文亮等编著.C++Builder 6程序设计教程[M].北京:科学出版社,2005:268-280.
[28]许明.基于C/S结构网络游戏的通信协议的研究与实现[硕士学位论文].王越先:东北大学,2005.
[29]陈立红.基于ASP技术的在线作业收发系统的研究[J].信息技术,2005,(10):117-119.
[30]莫足琴,谭远猛.基于C/S的高校评教管理信息系统的设计与开发[J].十堰职业技术学院学报,2006,19(5):77-79.
[31]用delphi实现浏览器中文件的上传[EB].http://www.xrss.cn/Dev/Delphi/20071218354.Html.
[32]李光明,王玲,刘瑞霞.ActiveForm在网络编程中的应用[J].微计算机应用,2005,26(4):414-417.
[33]高军,李晓明,张莲梅.ActiveForm技术开发电力系统Web模式[J].高电压技术,2003,29(9):39-43.
[34]徐武.CSS技术住HTML中的应用[J].河南职业技术师范学院学报,2004,32(1):62-63
[35]Masaki Nakagawa,Koichiro Hotta,Hirokazu Bandou etc.A revised human interface and educational applications on ideaboard[C].CHI'99 extended abstracts on Human factors in computing systems,1999:15-16.
[36]Jonathan G.Computer supported cooperative work:history and focus[J].IEEE computer,1999,27(5):19-26.
[37]Dave Berque,Andrew Hutcheson,David K.Johnson.The design of an interface for student note annotation in a networked electronic classroom[J].Journal of Network and Computer Applications,2000,23(2):77-91.
[38]张幸,殷继彬,肖幪.基于手写笔的电子白板系统的研究与实现[J].北京石油化工学院学报,2005,13(2):9-12.
[39]朱羽,王珊,唐伟.基于电子白板的远程教育系统的设计与实现[J].河北大学学报(自然科学版),2003,23(3):321-325.
[40]顾俊杰,曹宁.C/S模式下电子白板系统的设计与实现[J].河海大学常州分校学报,2005,19(1):57-60.
[41]彭绪富,余洁.共享白板系统的图形绘制与传输控制[J].高等函授学报(自然科学版),2005,19(6):30-34.
[42]王坤侠,吴观茂,万强兵.基于校园网的实时动态答疑辅导系统[J].安徽理工大学学报(自然科学版),2004,24(3):50-54.
[43]Ricardo Machado Leite de Barros,Tiago Guedes Russomanno.A method to synchronise video cameras using the audio band[J].Journal of Biomechanics,2006,39(4):776-780.
[44]求是科技编著.Visual C++音视频编解码技术及实践[M].北京:人民邮电出版社,2006:334-412.
[45]颜彦,陈健.ITU-TG.729a语音编解码器的实时实现[J].数据采集与处理,2001,16(4):408-411.
[46]Chuck Wook著,梁普选,梁津,刘玉芬等译.Visual C++6.0数据库编程大全[M].北京:电子工业出版社,2000:59-108.
[47]孙晓刚,韩东等编著.面向软件工程的Visual C++网络程序开发[M].北京:清华大学出版社,2004:1-41.
[48]丁展,刘海英等编著.Visual C++网络通信编程实用案例精选[M].北京:人民邮电出版社,2004:1-36.
[49]马长青,苏庆堂,刘贤喜.用WinSock开发C/S间的网络通信程序[J].农业网络信息,2004,(1):23-27.
[50]Xtreme Toolkit Professional Edition[EB].http://www.codeproject.com/KB/showcase/codejock01.aspx.
[51]赵毅.网络教学系统的设计与实现方法[硕士学位论文].张越:南京理工大学,2001.
[52]王骥.基于Web下的远程教学系统的设计与实现[硕士学位论文].付晓江:吉林大学,2006.
[53]张立红.基于ASP技术的网络教学系统的设计与实现[硕士学位论文].孙华志:天津师范大学,2005.