高标清同播系统特殊功能键的外部控制及应用

External Control and Application of Special Function Keys in Standard Definition and High Definition Editing and Broadcasting System

在电视播出控制系统中,有一个受控设备——特殊功能键,它相当于播控机的快捷键,在播出画面出现问题或在播节目结束方式需要紧急修改时,能使人工干预快速发挥作用,为设备抢修、及时调整播出方案争取创造了时间,是电视安全播出系统的重要组成部分。对特殊功能键的系统连接、功能设置、通信协议、具体应用等进行了详细的探讨,以期对其有一个全面的认识并能更好地运用它为节目的安全播出服务。

The special function key is an important component in the TV broadcasting system. The special function keys can speed up the human intervene process when any abnormal situation occurs during the broadcasting, they can also change the way in which the broadcasting programs end under the urgent situation. The special function keys can spare time for device troubleshooting and adjusting broadcasting plans quickly. The system connection, function setting up,communication protocol and specific application of the special function keys are introduced. The aim is to introduce the special function keys in a full way and explore how to use them to implement the safe broadcasting of TV programs.