The Optimization Research Of The Virtual Training System Based On Web3D

In recent years,telecom industry pays more attention to the training of students,because of the rapid development of science and technology and the frequent replacement equipment.But the real training faces some difficulties by the limits of space,rent and region.At that time,virtual training which is easy interaction,easy operating and cheap has been developing rapidly.But normally,the development of virtual experiments is difficult and costs a long time,so the laboratory researched for the rapid development of virtual experiment.On the basis of the research,it is found that nowadays,the virtual experiments are mainly in the form of two-dimensional images,virtual experiment in 3D form are numbered.But virtual experiments in 3D form are one of the future development trend of the virtual experiment,because they can increase students' sense of immersion.In the research,an improved study based on Web3D of the earlier training system has been done.The system improved from the static of 2d form to the dynamic 3d form which can bring more realistic experience to the learners.By studying and comparing all the numerous Web3D technologies,WebGL is chosen to develop the system.The 3d form system is designed on the basis of the characteristics of the WebGL technology and education theories such as cognitive theory,interaction theory.Then the WebGL technology is used to develop the improved system in combination with 3d modeling,database and so on.In the process of development,the format of the imported3d models and how to keep the smooth migration when state transition are mainly solved and a development process which is generating model-generating scene-importing model-reading data-developing interactive action-developing transition is made.The improved system which can be quickly generated offers learners to operate simulation equipment rapidly and is implemented in strict compliance with all principles.While ensuring the simulation results,it significantly improves the production efficiency of the production of new virtual training courses.The system is based on HTML5,and is developed with WebGL.Three.js library is called when processing the model import and interactive part,and the data in the database is read and processed.After verification test,the system basically achieves the use of requirements in the form and speed.