会议系统的保密性比较强的话，有一套中控系统是非常有必要的。
If the security of the conference system is strong, it is necessary to have a central control system.
控制范围：
Control range:
1、控制投影机开关、投影机亮度、对比度、色彩调整；
1. Control the projector switch, brightness, contrast and color adjustment of the projector;
2、投影机播放信号源的切换；
2. Switching of signal source of projector;
3、对电脑、视频、音频智能型切换设备、实时控制电脑、视频、音频信号的相互切换等；
3. Intelligent switching equipment for computer, video and audio, real-time control of computer, video and audio signal switching, etc;
4、音响系统的音量大小进行控制；
4. Control the volume of the sound system;
5、对各种延时播放设备的控制，如DVD、录像机、影碟机等进行模拟原控制器各项功能的操作控制；
5. Control various delay playback equipment, such as DVD, VCR, DVD player, etc., to simulate the operation control of various functions of the original controller;
6、对屏幕、窗帘、空调等有红外线发射的设备都可以控制。
6. It can control the screen, curtain, air conditioner and other equipment with infrared emission.