A Fuzzy Weight Variable Sampling Period Scheduling Strategy for Networked Control System

TIAN Zhong-da; LI Shu-jiang; WANG Yan-hong; GAO Xian-wen; SHI Tong

doi:10.3969/j.issn.0372-2112.2015.05.022

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A Fuzzy Weight Variable Sampling Period Scheduling Strategy for Networked Control System

更新时间：2025-07-16

- A Fuzzy Weight Variable Sampling Period Scheduling Strategy for Networked Control System
- Acta Electronica Sinica Vol. 43, Issue 5, Pages: 980-986(2015)
- 作者机构：
  
  1. 沈阳工业大学信息科学与工程学院,辽宁,沈阳,110870
  2. 东北大学信息科学与工程学院,辽宁,沈阳,110819
  3. 辽宁林业职业技术学院人文学院,辽宁,沈阳,110101
  4. 沈阳工业大学信息科学与工程学院,辽宁,沈阳,110870
  5. 东北大学信息科学与工程学院,辽宁,沈阳,110819
  6. 辽宁林业职业技术学院人文学院,辽宁,沈阳,110101
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61034005)
- DOI：10.3969/j.issn.0372-2112.2015.05.022
  CLC： TP273
- Published：2015
- 稿件说明：
移动端阅览
TIAN Zhong-da, LI Shu-jiang, WANG Yan-hong, et al. A Fuzzy Weight Variable Sampling Period Scheduling Strategy for Networked Control System[J]. Acta Electronica Sinica, 2015, 43(5): 980-986.
DOI：

TIAN Zhong-da, LI Shu-jiang, WANG Yan-hong, et al. A Fuzzy Weight Variable Sampling Period Scheduling Strategy for Networked Control System[J]. Acta Electronica Sinica, 2015, 43(5): 980-986. DOI： 10.3969/j.issn.0372-2112.2015.05.022.

摘要

网络控制系统的性能受到采样周期的影响.针对多回路网络控制系统

根据系统控制回路误差和误差变化率

利用模糊推理计算各回路的动态权重

同时根据当前网络运行状况预测新的网络利用率

然后利用ARIMA算法对数据包传输时间进行预测

最后在网络带宽一定的条件下

利用模糊动态权重系数、网络利用率、数据包传输时间

不断的改变系统中各控制回路的采样周期

达到优化网络控制系统性能的目的.利用True Time工具箱进行的仿真验证了本文方法的有效性.

Abstract

Performance of the networked control system is affected by the sampling period.For the networked control system with multi loop

according to the system contpol loop error and error rate

dynamic weights are calculated by using fuzzy inferential for each control loop

new network utilization is predicted based on the current network status.Then ARIMA algorithm is used to predict the packet transmission time.Finally

under the conditions of the network bandwidth is limited

fuzzy dynamic weight coefficient

network utilization

packet transmission time is used for constantly changing sampling period of the system control loop

to optimize the performance of networked control system.True Time toolbox simulation result demonstrates the effectiveness of this method.

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