【摘 要】
：
To evaluate and improve the real-time performance of Ethernet for plant automation (EPA) industrial Ethernet,the real-time performance of EPA periodic data tran
【机 构】
：
School of Mechanical and Power Engineering,School of Control Science and Engineering
【基金项目】
：
the National High Technology Research and Development Program of China
论文部分内容阅读
To evaluate and improve the real-time performance of Ethernet for plant automation (EPA) industrial Ethernet,the real-time performance of EPA periodic data transmission was theoretically and experimentally studied.By analyzing information transmission regularity and EPA deterministic scheduling mechanism,periodic messages were categorized as different modes according to their entering-queue time.The scheduling characteristics and delivery time of each mode and their interacting relations were studied,during which the models of real-time performance of periodic information transmission in EPA system were established.On this basis,an experimental platform is developed to test the delivery time of periodic messages transmission in EPA system.According to the analysis and the experiment,the main factors that limit the real-time performance of EPA periodic data transmission and the improvement methods were proposed.
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