PTP技术分析  

Analysis on PTP

作　　者：方强[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2010年第2期61-64,共4页Radio Engineering

摘　　要：时间同步技术广泛应用于工业自动化、仪表测量以及通信等领域,传统的同步技术的同步精度比较低,已经无法满足高精度同步的需求,IEEE1588标准精确时间同步协议(PTP)的提出,解决了应用领域中需要高精度时间同步的问题,它可以通过分组网络实现,大大降低系统成本。对PTP中的系统模型、同步机制进行了分析,给出了PTP实现时注意的问题。Time synchronization techniques are widely applied to industrial automation,instrument measurement and telecommunication,but traditional methods can't satisfy the requirement in some precise time synchronization application.IEEE1588 standard addresses precise synchronization of clocks in application that needs precise time references.It can achieve highly accurate synchronization over packed-based network (e.g.Ethernet) and reduce cost of system deployment.In this paper,PTP system model and precise synchronization principle are discussed and some key points in designing PTP system are given.

关 键 词：PTP 1588 NTP 

分 类 号：TN915.04[电子电信—通信与信息系统]