摘要
IEEE1588协议的不同实现方法对时间同步精度具有重要影响。该文分析了PTP引擎模块体系结构,实现PTP协议状态机、最佳主时钟算法、时钟变量算法、本地时钟同步算法,优化PTP报文发送与接收的控制过程。测试表明,该精确时间同步实现方法可使同步精度达到10微秒级,能有效满足测量与控制领域对时间同步的高精确度要求。
The different implements of the IEEE1588 are very important to the precise time synchronization. This paper expounds the structure of the PTP engine module, realizes the state machine of the PTP, the best master clock algorithm and the local time synchronization algorithm, and optimizes the process of receiving and sending the message. The experiment shows that the synchronization accuracy is in the range of 10 microsecond by using the implementing method in the paper and satisfies the need of the measurement and control field.
出处
《计算机工程》
CAS
CSCD
北大核心
2008年第10期247-249,共3页
Computer Engineering
关键词
精确时钟同步协议
协议引擎
最佳主时钟算法
Precise Time Protocol（PTP）
protocol engine
the best master clock algorithm
