双参数优先级递推式变采样周期调度算法

doi:10.16182/j.issn1004731x.joss.19-0079

系统仿真学报 ›› 2020, Vol. 32 ›› Issue (9): 1711-1716.doi: 10.16182/j.issn1004731x.joss.19-0079

双参数优先级递推式变采样周期调度算法

时维国, 许超, 王迅, 王祥泰

大连交通大学电气信息工程学院,辽宁大连 116028

收稿日期:2019-02-28 修回日期:2019-05-27 出版日期:2020-09-18 发布日期:2020-09-18
作者简介:时维国(1973-),男,河北,博士,副教授,研究方向为网络控制技术、智能控制;许超(1992-),男,安徽,硕士生,研究方向为网络控制。
基金资助:
辽宁省自然科学基金(20170540141),辽宁省教育厅科学研究项目(JDL2019011)

Research on Recursive Variable Sampling Period Scheduling Algorithm Based on Two-parameter Priority

Shi Weiguo, Xu Chao, Wang Xun, Wang Xiangtai

College of Electrical and Information Engineering Dalian Jiaotong University, Dalian 116028, China

Received:2019-02-28 Revised:2019-05-27 Online:2020-09-18 Published:2020-09-18

摘要/Abstract

摘要： 针对资源受限的网络控制系统,提出了一种基于双参数优先级的递推式变采样周期动态调度算法。计算控制回路的网络需求度和网络紧急度双参数,并以控制回路误差的绝对值建立二次平方根映射函数来确定双参数权重,实现对传感器优先级的调度。同时,综合分析控制回路性能递推动态调节各控制回路的采样周期,在保证控制系统的稳定的前提下完成调度调节。仿真表明该调度算法提高了网络控制系统的控制质量。

关键词: 网络控制系统, 双参数, 优先级, 递推变采样周期

Abstract: A recursive variable sampling periodic dynamic scheduling algorithm based on two-parameter priority is proposed for the resource-constrained network control system. The network demand degree and network urgency double parameter of the control loop are calculated, and the two-parameter weight is established by the two-square root mapping function which is created by the absolute value of the control loop error to realize the scheduling of the sensor priority. The comprehensive analysis of the control loop performance recursively adjusts the sampling period of each control loop, and completes the scheduling adjustment under the premise of ensuring the stability of the control system. Simulations show that the scheduling algorithm improves the control quality of the network control system.

Key words: network control system, two-parameter, priority, recursive variable sampling period

中图分类号:

TP273

时维国, 许超, 王迅, 王祥泰. 双参数优先级递推式变采样周期调度算法[J]. 系统仿真学报, 2020, 32(9): 1711-1716.

Shi Weiguo, Xu Chao, Wang Xun, Wang Xiangtai. Research on Recursive Variable Sampling Period Scheduling Algorithm Based on Two-parameter Priority[J]. Journal of System Simulation, 2020, 32(9): 1711-1716.

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双参数优先级递推式变采样周期调度算法

Research on Recursive Variable Sampling Period Scheduling Algorithm Based on Two-parameter Priority

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