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哲里木电视台11频道机房承担着我台自办节目播出的中心与发射合二为一的任务。多年来一直采用手动切换播出，这就难免存在着节目连接误差，切换误差等问题，而且值机人员劳动强度过大。为了提高播出质量和高可靠性，以及方便灵活性，1990年我们设计制作安装了视、音频切换自动?
Zhelin TV station 11 channel room to undertake the broadcast of our own program run center and launch a task. Over the years has been the use of manual switching broadcast, which inevitably exist program connection error, switching error and other issues, but the check-in staff is too labor-intensive. In order to improve the broadcast quality and high reliability, as well as convenient and flexible, in 1990 we designed and installed video, audio switching automatically?