控制网络节点可重构无线通讯协议性能仿真  

Performance Simulation of Reconfigurable Wireless Communication Protocol in Control Network

作　　者：李萍[1] 王昕[1] LI Ping;WANG Xin(Manzhouli Branch of Inner Mongolia University,Manzhouli Inner Mongolia 021400,China)

机构地区：[1]内蒙古大学满洲里学院,内蒙古满洲里021400

出　　处：《计算机仿真》2021年第4期129-133,共5页Computer Simulation

基　　金：2019年内蒙古大学满洲里学院“课程思政”示范课程建设项目课题(MZK1908);2019年度内蒙古自治区教育科学研究“十三五”规划项目课题(NNGJGH2019319)。

摘　　要：控制网络的通信环境具有不确定特征,且协议异构性突出,为改善网络延时,提高系统稳定性,提出控制网络节点可重构无线通讯协议性能仿真。将控制系统中的网络协议分为物理层、链路层、网络层与应用层,结合动态性、实时性等需求,确立节点可重构通讯协议体系,定义层次功能;通过加权图建立协议拓扑结构数学模型,选择遗传算法的编码与适应度函数,经过交叉变异操作,确定终止条件,选取通讯最佳路径,实现协议重构;使用总传输延时与平均传输延时评估协议服务质量的仿真指标,采用稳定性、可靠性等完成对控制系统性能评价。仿真结果表明,网络传输延时小、系统运行稳定,重构后的无线通讯协议具有良好性能。The uncertainty of the control network communication environment and the prominent protocol heterogeneity lead to network delay and system instability. Therefore, this paper proposeda performance simulation of a reconfigurable wireless communication protocol for control network nodes.The network protocol in the control system was divided into four layers: physical layer, link layer, network layer, and application layer. Dynamic and real-time were introduced to establish the reconfigurable communication protocol system of nodes, thus defining the hierarchical functions. According to the weighted graph, the mathematical model of protocol topology was constructed. Viathe genetic algorithm coding, fitness function selection, cross and mutation operations, and termination conditions, the optimal communication path was obtained, and the protocol reconfiguration was realized. According to the total transmission delay and average transmission delay, the simulation index of QoS was evaluated, and the stability and reliability were utilized to complete the evaluation of control system performance. The simulation results show that the wireless communication protocol has good performance after reconstruction.

关 键 词：控制网络节点 无线通讯 协议重构 性能评价 遗传算法 

分 类 号：TP326[自动化与计算机技术—计算机系统结构]