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以当前主流工业无线网络协议为研究对象,运用极值动力学方法优化网络路由与调度问题.在研究工业网络协议基础上,分析了其跨层优化的可行性.以网络实时性性能及网络寿命为多优化目标,建立符合工业无线网络特性和需求的整数规划问题(ILP)模型.进而提出一种基于极值优化的方法,改进算法步骤,选取适值函数并设计变异规则,首次将该方法用于求解无线网络调度问题.数值算例结果表明,使用本文算法能快速有效地得到优化结果,与简单调度方法相比,明显改善了网络功耗及延时性能,并体现两者间的权衡关系,从而可根据具体需求灵活配置.
Taking the current mainstream industrial wireless network protocol as the research object and using the extreme dynamic method to optimize the routing and scheduling problems of the network, the feasibility of cross-layer optimization is analyzed based on the study of industrial network protocols.The network real-time performance and network lifetime In order to achieve multi-optimization goals, an integer programming problem (ILP) model is established to meet the characteristics and requirements of industrial wireless networks.An extremum-based optimization method is proposed to improve the algorithm steps, select the fitness function and design variation rules, Which is used to solve the wireless network scheduling problem.The numerical results show that the proposed algorithm can get the optimization results quickly and effectively and obviously improve the network power consumption and delay performance compared with the simple scheduling method and reflect the trade-off between the two , Which can be flexibly configured according to specific needs.