基于tdma的以太网帧传输时间控制

Naoto Hagino, Masaaki Yamamoto, T. Yakoh
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引用次数: 1

摘要

基于网络的控制系统过程要求对帧传输进行精确的定时控制。本文提出并实现了一种基于双队列结构和精确时间同步机制的特殊网络接口卡(NIC)。开发了一个高分辨率的帧传输延迟测量工具来验证该实现。实测结果表明,所设计的NIC延迟小于790 ns,时延偏差小于49 ns,而商用NIC延迟大于9700 ns,时延偏差大于300 ns。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Frame transmission time control for TDMA-based ethernet
Processes of network-based control system require accurate timing control of frame transmission. A special network interface card (NIC) was proposed and implemented to adjust the timing accurately based on a dual queue structure and precise time synchronization mechanism in this paper. A high resolution measurement tool for frame transmission latency was also developed to validate the implementation. The measured results verified that the proposed NIC achieved the latency shorter than 790 ns and the deviation of it less than 49 ns while a commercial off-the-shelf NIC showed the latency longer than 9700 ns and the deviation of it more than 300 ns.
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