Analysis of the implementation of multimedia classrooms

First, multimedia construction background

With the advancement of the times and the development of science and technology, high school schools face new challenges in the management of modern information technology. In order to improve the school's own modern management level, enrich teaching methods and means, improve the efficiency of the work of the organs, timely grasp all kinds of relevant information, improve the ability to handle various business and emergencies, strengthen management, have modern information technology means, use computer networks With communication technology, comprehensive, rapid and accurate information has become an urgent need for the internal management and teaching business of high school.

The main hardware devices of the multimedia classroom are: multimedia LCD projector, electric screen, video booth, video recorder, DVD player, power amplifier, speaker, microphone, central control system, micro monitor, projector hanger, multimedia computer .

The main function of the multimedia classroom: the central control system controls all devices through a wired console. Controllable equipment mainly includes: switch of projector, switching of video and computer signals; control of lighting; lifting of electric screen; switch of electric curtain; and switching of audio and video equipment; switch of entrance and exit, entrance and exit box Play and other operations. The multimedia classroom can be used by 100-200 people. The projector can put computer signals and video signals on the big screen, and can display them in kind through the video display stand. At the same time, powerful audio equipment can provide karaoke effects.

Multimedia classroom master control system design:

Second, the analysis of the project situation

The multimedia classroom implementation site is a 200-seat professional classroom. According to the environmental requirements, the screen size required for the large screen projection required in the project is 150′′, and the brightness of the projector at 2200 ANSI lumens can ensure that the people in each seat can see clearly under sufficient illumination in the classroom. In terms of degree, it is necessary to consider both the financial factor and the microcomputer-based lectures. Therefore, it is recommended to use a model with a wide range of resolutions of 800x600 resolution. Therefore, in terms of resolution, it is necessary to consider the combination with computer application, and in terms of brightness. It is to make the human eye see more clearly without fatigue. From the engineering experience, EPSON 5600 model, brightness 2200ANSI lumens, resolution of 800x600, Chinese menu, partial amplification, multiple logos, etc., performance price is relatively high The warranty period is up to two years.

The audio system in the multimedia classroom is mainly based on voice reinforcement, supplemented by music sound reinforcement, and is mainly used as a voice amplification output for teachers. The system uses high-performance audio equipment, based on the principle of quality and durability, choose the mainstream models with higher performance and price.

Central Control System: The multimedia classroom is equipped with a large number of audio-visual equipment and demonstration equipment. In the conference or classroom, the operator must not only complete the control of the equipment, but also complete the signal switching between the equipment. Therefore, it is required to select a control system with complete functions, stable quality, convenient installation, simple operation, easy upgrade, and good performance and price ratio.

Third, the system function introduction

1. The system can demonstrate to students in a clear and timely manner through a large screen projector:

a.. computer signal, CAI teaching software and produced courseware;
b. physical objects, text, graphics, pictures, slides and photographic negatives of the physical display stand;
c. Video recorders, educational programs on video recorders, and other video signals such as cable television.

2. Fast and intelligent central control system full image monitoring, easy to use single layer control interface allows you to flexibly control the following equipment: projection equipment, audio equipment, computer, environmental lighting, screens, curtains, etc., with preview , play, control and other functions, help you save more time, manpower and material resources, and effectively improve work efficiency.

3. Hold various multimedia conferences

4. On the weekends, you can play movies and other cultural entertainment programs, and you can hold small and medium-sized cultural concerts to make full use of resources to enrich the school's extracurricular cultural life.

5. Teachers use high-fidelity wireless microphones to teach lesson, especially in group classes. They can be taught anywhere in the classroom to integrate teachers and students, and to train high-quality students and teaching quality. The improvement will do more with less.

6. Monitor the venue through the scene camera function of the video display station