Virtual Teaching Laboratory Client Software Research And Implementation

With the revolution of high education and raise of number of student, the universities are puzzled by teaching of experiment. The main representations are deficiency of institutions, limitation of teaching time and place, backward in means and content of experiments. With the improvement of network technology and computer, virtual laboratory that takes full advantage of computer resource become an important choice of serving these problems and improve the quality of teaching.The paper adopts the technologies of virtual reality, virtual instrument, visualization and network communication and researches the structures of the virtual laboratory system and client-end. Client-end is an important section of whole system. It provides rich instruments and operation platform of experiments to users, and transmits data of experiments to server-end, and displays result of experiments. So, excellent design and technology of realization are important.This paper is based on analysis of the system model;it chooses C/S three-layer structure module. It studies working process of the whole system, structure and function of every module.The paper that emphasize studies establishment method of a model of virtual instrument and the model database, for the user provided abundant, lifelike, component instruments, and build a convenient experiment operation terrace.At the same time, the thesis makes use of techniques of visualization and virtual instrument , studies visual calculation in electric circuit experiment, visualization of method, and studiee the correspondence technique in data receiving and dispatch to deliver of application.Last, the paper tests the function of the technique of realization and study. The result shows that technique of the paper to elaborate and design virtual teaching laboratory can imitate the true experiment scene, and manifest experiment the result and information through the picture, analysis and hints of mistakes.And the system own characteristics of applicability, reciprocity,abundance,real-time and expansibility.