【作者】 曾昭健；

【导师】 武和雷； 朱善安；

【作者基本信息】 南昌大学 ， 控制理论与控制工程， 2007， 硕士

【摘要】 网络实验室(NETLAB)是基于Internet的远程实验平台,整个实验室基于双C/S架构,由客户端、服务器端、控制端三部分组成,具有良好的扩展性、安全性和稳定性,允许多用户、多实验同时进行。目前已能提供5大类,20组80多个电气工程学科具体实验,所有实验都基于真实物理设备。本文对网络实验室DSP(Digital Signal Processor,DSP)类实验系统的设计开发和网络实验室实时性问题进行了研究。随着DSP技术的广泛应用,高等院校普遍开设了DSP技术课程,开发基于NETLAB的DSP类实验正是满足对实验设备的需求;网络实验室的实时性决定了实验效果,实时性越高,实验效果越接近传统实验方式。本文分为5部分。第一部分介绍了国内外虚拟实验室的研究现状,阐述了选题背景及意义。第二部分网络实验室的设计,包括总体设计框架、客户端框架功能、部分实验内容。第三部分在分析DSP类实验的开发特点的基础上,设计并成功开发基于TMS320LF2407的DSP实验系统,并提出了一些在设计开发中所遇到问题的解决方法。第四部分对网络实验室实时性问题作了研究。网络的实时性问题一直是热点、难点问题,很难找到一种具有通用性的解决办法,本章根据网络实验室的具体情况,有针对性地提出了一些具体解决方法,并在直流电机实验设计中得到了实证。第五部分对全文进行了总结,对网络实验室后续建设提出了一些建议。更多还原

【Abstract】 NETLAB is a remote virtual laboratory based on Internet. It adopts the double C/S structure with three sites: client site, server site and control site. Multi-user can do different experiments at the same time via NETLAB. It is flexible and robust. NETLAB provides over 80 experiments, which can be divided into five categories and 20 experiment groups, for E.E. students. All these experiments are based on real physical equipments.This thesis focuses on the design and development of the DSP (Digital Signal Processor) experiment system and the research on the real-time performance of the NETLAB. With the extensive application of DSP technology, most of colleges and universities provide related courses of DSP, and developing the DSP experiment system in NETLAB is to meet the needs of laboratory equipments. The Real-time performance of NETLAB determines the effect of experiment. The higher real-time performance it has, the better effects the experiments will have.This thesis includes five parts.The first part introduces the concept and current research situation of virtual laboratories, and the meaning and backdrop of NETLAB.The second part describes the design of NETLAB, including the overall framework, the client framework features, and its experiments.The third part analyses the development features of the DSP experiment system in NETLAB firstly, and then illustrates the design and development of DSP experiment system based on TMS320LF2407 processor. The solutions about the problems occurred during the project development are also mentioned.The fourth part focuses on the research of the real-time performance of NETLAB. How to improve the real-time performance of network is always hot and a difficult issue and it is difficult to propose a universal method to solve the problem. The solutions to improve the real-time performance are referred according to the situation of the NETLAB, and are applied to the DC motor experiment system successfully.The fifth part summarizes the thesis and gives some advice for the future development of NETLAB.更多还原