摘要
铁路通信同步网分为时钟同步网和时间同步网。针对铁路同步网现状和存在的网络结构、覆盖、设备老化等问题进行分析,提出近期铁路同步网发展规划。出于未来通信对同步网的更高要求,从技术更新角度提出对远期同步网发展的考虑。
Railway communication synchronization network can be divided into network frequency syn- chronization network and temporal synchronization network. Based on the present situation of synchroniza- tion networks and problem analysis of existing network structure, equipment ageing, and coverage, put forward development planning of synchronization network in the near future. Due to higher requirements of synchronization network in future communication, the development of synchronization network in the far future is taken into consideration in the viewpoint of technology updating.
出处
《铁道通信信号》
2012年第8期54-58,共5页
Railway Signalling & Communication
关键词
一级基准时钟
二级时钟
时间同步节点
分组传送
Primary reference clock
Secondary clock
Time synchronization node
Packet transmission
