为了实现多媒体教室的计算机网络互联；多媒体教室远程集中控制管理；总控室对各教室的视频监视；教学情景实时直播；教学情景课件实时录制生成及课件点播-Multimedia classrooms, computer networking multimedia classrooms remote centralized control of management the master control room video monitor for each classroom teaching sce