一、引言为适应当前电视播出技术正朝着数字化、网络化方向迅猛发展的要求,前年9月份起,江苏广播电视总台对电视播出系统进行了改造。目前,全新的六频道数字硬盘播出系统已顺利地投入使用将近一年。在该系统中,我们选择了SATURN作为播出切换台。本文介绍SATURN控制切换台的基本组成及功能,着重阐述SATURN控制切换台在江苏广播电视总台数字 I. INTRODUCTION In order to meet the requirement of the current television broadcasting technology being rapidly developing in the digital and network directions, the TV and broadcasting system of Jiangsu Radio and Television has been transformed from September of the same year last year. At present, the new six-channel digital hard disk broadcast system has been successfully put into use for nearly a year. In this system, we chose SATURN as the playout switcher. This article describes the basic composition and function of SATURN control switcher, with emphasis on the SATURN control switcher in Jiangsu Radio and Television total station digital