以太網(wǎng)通信延遲具有不確定性，這個問題成為它在工業(yè)實時控制應(yīng)用中的主要障礙，通過對現(xiàn)有實時工業(yè)以太網(wǎng)實現(xiàn)方法的比較與分析，進一步詳細(xì)討論了精確時鐘協(xié)議，得出結(jié)論IEEE1588 為解決
跨沖突域工業(yè)以太網(wǎng)的確定性問題提供了有效方案。
【關(guān)鍵詞】精確時鐘協(xié)議 (PTP) 沖突域確定性 實時
Abstract: Ethernet is non-deterministic, which has become its main obstacle when the Ethernet is used in industrial real-time control. With analysis and comparison of the existing implementation method of real-time industrial Ethernet, the precision clock synchronization protocol is discussed. At last such a conclusion can be drawn that IEEE1588 offered the effective way which realizes deterministic industry Ethernet that steps the collision domain.
Keywords: Standard Precision Time Protocol (PTP), collision domain, deterministic, real-time,