The Application Of Virtual Reality Technology Based On X3D In The Modern Distance Education

The distance education takes an independent education shape. It originated from the 19th century 40's correspondence educations. In the 20th century 70's, many kinds of media distance education developed rapidly. For the first time, it drew the wide attention from the world education domain. It was considered as a significant revolution in human history of education. By the end of 20 century, the information technology application had opened the modern distance learning prologue. With the information technology powerful support, the modern distance learning has the unprecedented compatibility and the flexibility. And the governments of various countries realize that modern distance learning becomes the first choice of lifelong education. Compared with the first generation of correspondence education and the second generation of many kinds of media distance learning, the modern distance learning has already developed from the edge pattern of education to the mainstream pattern. The modern distance learning no longer takes only one kind of substitution of the education form which provides remediation of study for the people who missed the opportunity for accepting high education, it also becomes a kind of representation form of the development direction for the future education. It has been eagerly anticipating the through revolution for the various countries' education fields.The main form of the modern distance education is the online education. Because of its unique advantage, online education will become the first-selected form of lifetime study. Online education can make more people, especially those unable to enter the college campus to accept advanced education. The distance education has already become a kind of major form of education.In essential, the virtual reality is one kind of advanced computer connection technology. By various technologies, it makes things in the real world and those originally not existing in real world such as hearing, touch, taste, smell, and etc, all work together coordinately, And it can provide interact between users and the environment to make the users realize that they seem to be personally in a real world.Virtual reality technology has the superiority that can't be compared in the modern distance education. It can make up for the insufficiency of long-distance teaching condition, avoid all kinds of dangers which may happen in the real testing's operation, break both the time and space limit thoroughly, and depict character image. Now more and more long-range educational institutions have already realized the importance of virtual reality and have done relevant discussions. Some schools have set up the system of fictitious campus among them. As X3D becomes the new standard of the network 3D, and is constantly improved, constructing the modern long-range education system based on X3D has already become the important subject. This thesis introduces X3D relevant technology and the designed system based on modern distance education of X3D. This system consists of two parts: course subsystem and experiment subsystem. Then the realization key technology based on X3D and design processes of these two subsystems follow. At last two corresponding embodiments are provided.