Systems Engineering and Electronics ›› 2020, Vol. 42 ›› Issue (10): 2348-2355.doi: 10.3969/j.issn.1001-506X.2020.10.25

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Variable sampling period scheduling of networked control system based on whale optimization algorithm relevance vector machine

Weiguo SHI(), Ming GUO()   

  1. College of Electrical and Information Engineering, Dalian Jiaotong University, Dalian 116028, China
  • Received:2020-02-23 Online:2020-10-01 Published:2020-09-19

Abstract:

Aiming at the resource constrained networked control system (NCS), a variable sampling period scheduling algorithm based on the whale optimization algorithm (WOA) relevance vector machine (RVM) is proposed. The network bandwidth and data transmission time data are obtained by the data transmission time monitoring module. The prediction model of WOA-RVM is established to realize the prediction of network bandwidth and data transmission time. Fuzzy inference is used to calculate the distribution weight of communication bandwidth in each loop of the system, and then the sampling period of each closed-loop loop is calculated according to the prediction value of communication bandwidth and data transmission time to complete the real-time adjustment of sampling period. Simulation results show that the proposed algorithm guarantees the stability and control accuracy of the system under the condition of resource constraints.

Key words: networked control system (NCS), whale optimization algorithm (WOA), relevance vector machine (RVM), fuzzy feedback scheduling, variable sampling period

CLC Number: 

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