基于IEEE1588的时钟同步算法软件实现  

Implementation of clock synchronization algorithm by software method base on IEEE 1588 protocol

作　　者：刘明哲[1] 徐皑冬[1] 赵伟[1] 

机构地区：[1]中国科学院沈阳自动化研究所,沈阳110016

出　　处：《仪器仪表学报》2006年第z3期2009-2011,共3页Chinese Journal of Scientific Instrument

基　　金：国家863课题专项经费(2003AA412030)资助项目

摘　　要：基于工业以太网通信技术,本文给出了一种精准时间协议的软件实现方法。它基于划分时隙的以太网确定性调度通信机制,有效地消除了以太网冲突的影响,并通过硬件定时、中断补偿等手段,大大提高了时钟同步的精度。经测试的结果表明,它可以达到亚微秒级的时钟抖动精度,满足大部分工业系统的要求。An accurate time protocol is implemented by software base on industrial ethernet communications technology. The algorithm can avoid ethernet collision effectively by dividing cycle into timeslice and scheduling deterministically communication mechanism. It has improved clock synchronization precision by hardware timing and interrupt compensation. The result shows that submicrosecond clock synchronization precision can be presented and it satisfies requirement of industrial system.

关 键 词：IEEE1588 以太网 时钟同步 精准时间协议 

分 类 号：TH7-55[机械工程—仪器科学与技术]