基于以太网和光纤网的仿真系统时钟同步研究  

Research on Clock Synchronization of Simulation System Based on Ethernet and Optical Fiber Network

作　　者：孟宇麟 沈涛 王帅豪 赵吕懿 唐成师 Meng Yulin;Shen Tao;Wang Shuaihao;Zhao Lüyi;Tang Chengshi(Shanghai Institute of Mechanical and Electrical Engineering,Shanghai 201109,China)

机构地区：[1]上海机电工程研究所

出　　处：《系统仿真学报》2019年第11期2402-2407,共6页Journal of System Simulation

摘　　要：随着仿真通信和以太网时钟同步技术的发展,传统基于实时操作系统定时仿真方法已经不能满足多仿真系统间的时钟同步精度要求,提出了一种基于IEEE1588时钟同步协议和光纤反射内存网的仿真系统间时间同步方法,该方法通过GPS\北斗高精度时间服务装置对实时操作系统进行周期性校准,实时操作系统将校准后的时钟信息分频并通过高速光纤反射内存网对各个仿真系统进行时钟同步,通过实物测试了3套仿真系统间时钟同步情况,结果表明系统间同步精度达到了微秒级。With the development of simulation communication and Ethernet clock synchronization technology, the traditional timing simulation method based on real-time operating system can not meet the accuracy requirements of clock synchronization between multi-simulation systems. A time synchronization method between simulation systems based on IEEE1588 clock synchronization protocol and optical fiber reflection memory network is proposed, in which the Beidou/GPS timing device periodically calibrates the real-time operating system, and the real-time operating system divides the frequency of the calibrated clock information and synchronizes the clock of each simulation system through the high-speed optical fiber reflection memory network. The clock synchronization among three simulation systems is tested in real-time, The results show that the synchronization accuracy between systems reaches microsecond level.

关 键 词：IEEE1588时钟同步协议 光纤网 系统 时间同步 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]