The Research Of Application On Vod In Distance Teaching

Since 1980s, the development of computer multimedia and network technology to has brought new flavor in contemporary and long-range education. Currently there are more than 100 countries in the world, especially in the remote education based on established in the Internet education, has been in the remote worldwide gained popularity. China also attaches great importance to the distance education, January 1991, when the state council approved"the implementation of the 21st century education revitalization action plan"puts forward: carry out the modern distance-education project ,form the open education network ,set up a life-learning system" definitely. At present the remote education has been started in many universities throughout the nation and gradually became a branch of college education, students in different places can listen and watch related teaching course which is useful for them or they are interested in ,by some dissemination means of this distance education, then achieve the purpose of study. Along with the rapid development of the computer network technology and digital technology, the distance education has entered a digital, intelligence, and personalized stage, and these techniques provides more ways to transmit the latest teaching information and knowledge. They greatly promoted the development and popularization of remote education, making it possible to study anywhere at anytime.Because of the increasing demand of media information,people no longer content to just simple text browsing, download, etc., but they need interaction-carried audio information resources. Video on demand technology is a kind of media communication form rising in recent years, it is a modern video technology which includes computer technologies, multimedia technologies, network communication technology. This technical support point-and-show, reflect the "user independent" brand-new concept, the user can select the video show independently according to their own interests and need, it radically changed traditional information transport one-way sexual, and making the user actively,selectively and controvely. Combining streaming media and video technology as remote education demand, and now it is the most popular means of dissemination. Many schools or enterprise or business have been built their own exquisite course or remote video site for learners. Embedding the video technology in distance teaching is a current trend.This article analyzed and investigates the application of remote teaching VOD system. Briefly introduces the composition of video technology and streaming media technology's transmission, a detailed analysis of the current application of long-distance teaching video form, meanwhile, video demand technology applied to teaching theory basis for education technology make a summary. An online video teaching website was Designed and implementation on this basis. This website adopts B/S structure, using C# as programming language, SQL Server 2005 as database development environment.It mainly includes teaching management subsystem and VOD subsystem two modules and support various video format playing. Teaching management subsystem including personnel management, video management, information management functions; Teaching video include watching VOD subsystem,download resources, communication, and video player selected support multiple video format online play. This VOD teaching website meets the need of current remote network teaching methods, it has the characteristics of good performance, very valuable but low cost moreover. It optimized learning resources and promote learning in the process of learning.