摘要
时间同步精度是影响电力通信传输网实时性的重要因素。为了满足传输网承载时间信号高精度的要求,对IEEE 1588精确时间同步协议进行了研究,阐述了该算法实现高精度同步的原理,并针对传输收发路径不对称的情况,提出了一种先对偏差进行合理的判断,然后进行补偿的同步改进算法,最后在广州供电局通信机房进行了实际测试,测试结果表明,改进的算法有效地提高了路径不对称条件下的时钟同步精度。
Time synchronization accuracy plays a crucial role on real-time communication operations. In order to meet the time signal precision requirements in transport networks,this paper presents the IEEE 1588 precision time synchronization protocol,elaborates the principle of the algorithm to achieve high-precision synchronization and proposes an algorithm for improved synchronization performance under the condition of asymmetric path. Finally,we test in Guangzhou Power Authority communications lab and the results showthat the improved algorithm effectively improves the precision clock synchronization under conditions of asymmetric path.
作者
李利
卓越
LI Li;ZHUO gue(College of Automation,Guangdong University of Technology,Guangzhou 510006,China;Guangdong Electric Power Design Institute,China Energy Engineering Group Co.Ltd.,Guangzhou 510663,China)
出处
《南方能源建设》
2014年第1期62-65,共4页
Southern Energy Construction
