浅谈县级数字电视备路系统建设

On the Construction of Standby System of Digital TV System in County Level

梅州市2010年实现市县联网覆盖,2012年实现传输双向备份,数字用户规模接近50万,目前前端复用、IPQAM等设备仍是单路设备,存在单点故障风险,为提高系统安全性,需要针对现有架构建立一套县区备路系统。

Meizhou city has realized the city and county network coverage by 2010, two-way backup of transmission by 2012 with nearly 500 thousand subscribers. So far, the front-end multiplex and IPQAM are still one-way equipment; therefore there is a risk of single point of failure. To improve the security of the system, a standby system for the city and county needs to be established for the existing framework.