以 IEEE1588 精确时间同步标准为基础,通过对工业以太网中PTP 协议的深入研究和分析,着重探讨了如何在装有linux 系统的现场设备上实现时间同步,并给出相应的实现方案。 【关键词】 IEEE1588, 时间同步, 工业以太网, Linux, 主时钟 【Abstract: In this article,on the basis of the precise IEEE1588 time synchronization, by lucubrating and analysing the PTP protocol in Ethernet, the time synchronization of local equipments realized under Linux is discussed emphatically. Keywords: IEEE1588, time synchronization, industrial Ethernet, Linux, master clock