Digitalized audio-video information resource system for remote education and its implementing method

Abstract

A digitalized audio-video information resource system for remote educatino is composed of information acquisition and edit system, andio-video informatino resource library system, user application system, and management system. It features that the hybrid architecture of said audio-video information resource library stem for integrating the advantages of B / S and C / S, hierarchical data managing mode, parallel presentation layer function layer / data layer / information service layer, two server systems for information service layer, and advanced stream medium technique.

Description

technical field [0001] The invention relates to a digitized audio-visual information resource system for program education, which belongs to information technology and the Internet [0002] technology field. Background technique [0003] With the advent of the information society, the information network has become an important pillar of modern education and training informatization. In particular, the application of education and training networks has changed the traditional methods and means of education and training. Network teaching, online training and distance education have become reality, which has brought about a qualitative leap in education and training. In the process of implementing education and training informatization, the construction of information resource system is a key basic project. At present, the construction of education and training information network has formed a large scale, and all colleges and related units have established campus networks. ...

AI Technical Summary

Problems solved by technology

[0006] At present, most of the information resource databases under construction in China are text-based, even if some contain audio-visual information, due to their small scale, unreasonable storage and management structure, low degree of automation, and defects in network audio and video transmission technology , causing it not to work properly in the WAN

[0007] The audio and video parts in the existing multimedia information resource library mostly use two methods. One is to directly use the file transmission method like text pictures. The required fast browsing, retrieval and real-time playback, multi-channel and pronunciation video requirements; the second is the use of VOD (video on demand) technology, which is currently more popular technology

There are many types of VOD systems, each with its own characteristics, but they all have the same weaknesses; such as: weak remote access capabilities, inconsistent file formats or difficult conversions, special requirements for players, unstable systems, and poor interactive functions. In addition, VOD The system is expensive, about 100,000 RMB for 100 users, making it impossible to promote it on a large scale over the WAN

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