Research And Design Of Computer Component Principle Virtual Laboratory

With the revolution of Vocational education and raise of number of student, the vocational schools 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。According to the shortages and the actualities of current virtual laboratory, the paper puts forward a research and design project of Computer Component Principle Virtual Laboratory (abbr. CCPVL), which attempts to set up a exoteric and collaborative laboratory in network。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 fo 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 experiment, visualization of method, and studiee the correspondence technique in data receiving and dispatch to deliver of application。At the same time, a kind of signal diffuse algorithm is presented forthe sake of offers more effective management of the signals diffuse in the CCPVL。This new algorithm figures out each element's signal deal price at seedtime, and uses priority queue to assign elements startup sequence at runtime。Then, it cans dynamic programming signal diffuse sequence。This algorithm is used to reduce signal's ineffectual and reiterative diffuse between elements。By use this algorithm, we can reduce the execute numbers of wok function。Both the theoretic analyses of algorithmic time complexity and the contrast experiments prove that the algorithm can bring high response speed and low system resources occupation。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。...