虚拟环境下的电子实验
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摘要
随着电子科学技术的迅猛发展，在电子信息的科学研究和新产品的开发过程中，实验研究技术和手段日新月异。然而，我国电子信息类专业教学却日益显得教学内容陈旧，特别是缺乏现代综合设计的实验条件，严重地影响了学生工程实践能力的培养和创新能力的发挥。网络虚拟实验具行丰富的辅助功能，实验者对实验的高度自主性；并且是一个开放的实验平台，具有良好的灵活性。目前的现实条件下，建立虚拟电子实验环境，是一项经济高效、切合实际的选择。
本文主要从四个方面详细论述了网络化虚拟电子实验的开发、研究和应用：硬件电路板的制作、整个通用硬件平台的介绍、虚拟电子实验应用环境的开发、网络化虚拟电子实验的实现。
在硬件电路板的制作中，主要论述了电路板的创意及特色、抗干扰设计；整个通用硬件平台的介绍主要阐述了信号源(DDS)、数据采集电路的实现和功能；在虚拟电子实验应用环境的开发中着重论述了如何使用Lab Windows／CVI、开发的实验环境的特点、和实验结果以及系统编程方法、流程图等；在网络化虚拟电子实验的实现中重点阐述了基于LabWindows／CVI开发平台的此网络化实验的结构和特点；同时详细讲述了关键的编程细节以及技巧等，并配有相关的程序流程图加以详细说明。
本实验系统既能调动学生学习的主动性和积极性，又能培养学生的创新能力，具有很高的实用价值。
With the rapid development of electronic technology, the technology and means of experiment study is changing with each passing day in the course of researching electronic information and exploring new product. But the experiment teaching is too out of season to make bad influence on training the student's engineering-oriented and innovatory capacity. The virtual experiment on net has a good assistant function and it is an opening operating plat with good flexibility, so user has good self-determination. Under the realism condition, to set up an environment of virtual electronic experiment is a economic, a good benefit and a active selection.
This paper discusses the development, research and application of the virtual electronic experiment on net from four aspects, including the PCB of the hardware, the develop of the applied condition of the virtual electronic experiment, the realization of the virtual electronic experiment and the guidance of each experiment of this experiment system.
In the action of the hardware, it discusses mainly the originality and the feature of the hardware and the anti-jamming. In the action of the application environment of the virtual electronic experiment, discusses mainly how to use the LabWindows/CVI software and discusses the characteristic of the developing environment, the result of the experiment, the programming way and the following chart of system. In the section of the realization of the virtual electronic experiment on net, it discusses mainly the structure and the characteristic of the experiment on net based on the developing plat of Lab Windows/CVI . meanwhile introduce the key program and the skill at length, and had given the relative the following chart .
本文主要从四个方面详细论述了网络化虚拟电子实验的开发、研究和应用：硬件电路板的制作、整个通用硬件平台的介绍、虚拟电子实验应用环境的开发、网络化虚拟电子实验的实现。
在硬件电路板的制作中，主要论述了电路板的创意及特色、抗干扰设计；整个通用硬件平台的介绍主要阐述了信号源(DDS)、数据采集电路的实现和功能；在虚拟电子实验应用环境的开发中着重论述了如何使用Lab Windows／CVI、开发的实验环境的特点、和实验结果以及系统编程方法、流程图等；在网络化虚拟电子实验的实现中重点阐述了基于LabWindows／CVI开发平台的此网络化实验的结构和特点；同时详细讲述了关键的编程细节以及技巧等，并配有相关的程序流程图加以详细说明。
本实验系统既能调动学生学习的主动性和积极性，又能培养学生的创新能力，具有很高的实用价值。
With the rapid development of electronic technology, the technology and means of experiment study is changing with each passing day in the course of researching electronic information and exploring new product. But the experiment teaching is too out of season to make bad influence on training the student's engineering-oriented and innovatory capacity. The virtual experiment on net has a good assistant function and it is an opening operating plat with good flexibility, so user has good self-determination. Under the realism condition, to set up an environment of virtual electronic experiment is a economic, a good benefit and a active selection.
This paper discusses the development, research and application of the virtual electronic experiment on net from four aspects, including the PCB of the hardware, the develop of the applied condition of the virtual electronic experiment, the realization of the virtual electronic experiment and the guidance of each experiment of this experiment system.
In the action of the hardware, it discusses mainly the originality and the feature of the hardware and the anti-jamming. In the action of the application environment of the virtual electronic experiment, discusses mainly how to use the LabWindows/CVI software and discusses the characteristic of the developing environment, the result of the experiment, the programming way and the following chart of system. In the section of the realization of the virtual electronic experiment on net, it discusses mainly the structure and the characteristic of the experiment on net based on the developing plat of Lab Windows/CVI . meanwhile introduce the key program and the skill at length, and had given the relative the following chart .
引文
[1] ABEYRSUNDARA, B.W., and KAMAL, A.E: "High-Speed Local Area Networks and Their Performance" Computing Surveys, Vol.23, pp. 221-264, June 1991.
[2] Andrew S. Tanenbaum: COMPUTER NETWORKS
[3] NI. Labview User Manual. National.Instruments. 1998
[4] NI. LabWindows/CVI User Manual. National Instruments. 1998
[5] NI. LabWindows/CVI Standard Libraries Reference Manual. National Instruments. 1998
[6] Kyle Roosendaal. VXI based solution for flight controls test and simulation. IEEE 1996
[7] NI. LabWindows/CVI Programmer Reference Manual. National Instruments.1998
[8] 殷瑞祥．Electronics WorkBench 使用指南与电子电工技术EDA实验．华南理工大学出版社．1999
[9] 赵培功 李雷．集成电路应用．电子科技大学出版社．1997
[10] 古天祥等．虚拟仪器实验教程．电子科技大学出版社．1998
[11] 陈兆仁等．电子技术基础实验研究与设计．电子工业出版社．2000
[12] 陈志荣．实用计算机网络技术教程．电子工业出版社．2001
[13] 曾建超．虚拟现实的技术及应用．清华大学出版社．1996
[14] 郭清顺等．对基于Internet环境下的协同式教学探讨．网络时代的学与教国际会议论文．2001(1)
[15] 任献斌．基于共享内存的数据交换技术及其在ATE测控程序开发中的应用．宇航计测技术．2001(3)
[16] 张人清等．虚拟网络实验室原理与方法述评．计算机应用研究．2001(7)
[17] 李琪．Windows组网技术．机械工业出版社，1997
[18] 老虎工作室．电路设计与制版—Protel 99入门与提高．人民邮电出版社．2000
[19] 黄迪明．C语言程序设计教程．电子科技大学出版社．1997
[20] 谭浩强．C程序设计(第二版)．清华大学出版社 2000
[21] 刘君华．虚拟仪器编程语言LabWindows／CVI教程．电子工业出版社．2001
[2] Andrew S. Tanenbaum: COMPUTER NETWORKS
[3] NI. Labview User Manual. National.Instruments. 1998
[4] NI. LabWindows/CVI User Manual. National Instruments. 1998
[5] NI. LabWindows/CVI Standard Libraries Reference Manual. National Instruments. 1998
[6] Kyle Roosendaal. VXI based solution for flight controls test and simulation. IEEE 1996
[7] NI. LabWindows/CVI Programmer Reference Manual. National Instruments.1998
[8] 殷瑞祥．Electronics WorkBench 使用指南与电子电工技术EDA实验．华南理工大学出版社．1999
[9] 赵培功 李雷．集成电路应用．电子科技大学出版社．1997
[10] 古天祥等．虚拟仪器实验教程．电子科技大学出版社．1998
[11] 陈兆仁等．电子技术基础实验研究与设计．电子工业出版社．2000
[12] 陈志荣．实用计算机网络技术教程．电子工业出版社．2001
[13] 曾建超．虚拟现实的技术及应用．清华大学出版社．1996
[14] 郭清顺等．对基于Internet环境下的协同式教学探讨．网络时代的学与教国际会议论文．2001(1)
[15] 任献斌．基于共享内存的数据交换技术及其在ATE测控程序开发中的应用．宇航计测技术．2001(3)
[16] 张人清等．虚拟网络实验室原理与方法述评．计算机应用研究．2001(7)
[17] 李琪．Windows组网技术．机械工业出版社，1997
[18] 老虎工作室．电路设计与制版—Protel 99入门与提高．人民邮电出版社．2000
[19] 黄迪明．C语言程序设计教程．电子科技大学出版社．1997
[20] 谭浩强．C程序设计(第二版)．清华大学出版社 2000
[21] 刘君华．虚拟仪器编程语言LabWindows／CVI教程．电子工业出版社．2001