Network Virtual Laboratory Design And Case Study Based On Web

Nowadays, web based long-distance learning system for classroom instruction has become more and more mature. However, web based long-distance learning system for experiment instruction is still to be developed. This paper is based on computer technology of the multimedia, network technology, fictitious instrument technology, have put forward the idea of carrying on the fictitious experiment on the net, namely replace the hardware with the software, use programming simulate the whole course of the experiment . This paper finishes the following task mainly:(1) This subject has briefly introduced a network the research and the development circumstance of the virtual laboratory first, and aim at currently the concrete circumstance of the laboratory, put forward the necessity and the meaning of this topic research.(2) This paper analyses and compares with the characteristic of Clientl Server and Browser/Server, two kinds of network structure, this system selects Browser/Server mode finally, it fit well according to the demands of Web based virtual laboratory.(3) Through to the analysis of several key technology of the virtual laboratory both at home and abroad, and the computation of various kinds of popular technology and software tool at present, this paper put forward one brand-new solution, then adopted according to the .NET technique, the usage C# the language development conjecture experiment the instrument control a piece, combining the ASP.NET technique and the database technique to carry out the virtual network experiment system.(4) According to the design principle and goal of the Web based virtual laboratory, this paper has analyzed about function, module, system procedure of the system, etc, and take chip 8255 conjectures as an example, finish the development of the Web based virtual laboratory. And the draw line operation and the dynamic graphical display are difficult points of this system.This topic's putting forward a purpose was the design and frame solution, this text that investigates the basic system structure, key technique of the construction conjecture experiment system and carries out a technique, the virtual instrument sub-system to not only carry out an integrity practical virtual laboratory system completely, but also do to creatively for the development design of virtual laboratory Thus is the realization is each the high etc. college make in the calculator technique, automobile engineering, machine, the medical treatment technique etc. of education quality again up the new step lay foundation.