| It has always been an important issue for educators to explore that what kind of education form or teaching methods should be used to enhance the quality of teaching. The continuous development of multimedia technology has brought a revolutionary change to the traditional teaching methods. It has been a major trend for dynamic multimedia teaching, which is also in rich forms, to replace blackboard and chalks in the past. However, the contradiction between the sharp increase demand of multi-media classrooms and the lack of the management workforce is growing rapidly. In order to solve this problem, we should automatic and centralize the complex operation and management. So I would like to research and design the central control system of multimedia classroom in colleges and universities as well.First of all, with the actual use of multimedia classrooms in our college, combining with the current development situation of multimedia control system in China, we can put forward the significance and trend of this kind of system.Moreover, we should find out the relevant technical information, analyze the features and technology of existing central control system and make the designing project of the system in this essay. And specific design diagram and software flow chart can be drawn out by analyzing and designing hardware and software systems in details.At last, We ought to focus on the deficiencies in the current multi-media classroom management and safety and give more discussion to the intelligent access control system, including the introduction of the fingerprint recognition and IC card identification method.This paper realizes the design about each functional module which is the central control system of multimedia classroom, such as the switching control of video and audio signal, environmental control, simulation of infrared remote control codes, serial communication and so on. How to improve the security of the multimedia classroom solutions has been put forward. |
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