控制网络的综合调度及其在双缸同步控制中的应用  

Integral schedule of control network with application on dual-cylinder synchronous control system

作　　者：杨丽曼[1] 李运华[1] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100191

出　　处：《电子设计工程》2010年第1期74-77,共4页Electronic Design Engineering

基　　金：高等学校博士点科研基金项目(20080061061)

摘　　要：为提高网络调度的工程可操作性,基于对传输任务与被控对象的分析提出一种不依赖于控制模型的综合调度方法。通过估计网络负载和引入频谱能量分析法粗拟出多个回路的采样周期范围,针对争用式网络协议采用非抢占RM算法进行带宽分配,采用带宽预留的概念全面考虑周期任务和猝发任务。最后以工程机械中常见的顶推系统双缸同步控制为例,对所提出的综合调度方法进行仿真研究,验证该方法的有效性。A new integrated scheduling method based on analysis of transmitting tasks and controlled plants is put forward to advance the engineering maneuverability of network scheduling.The sampling period ranges of control loops are deduced through estimating the network loads and importing the frequency spectrum analysis. For competitive network protocols, the network bandwidth allocating method based on non-preemptive RM algorithm is adopted to determine the sampling periods and priority configurations of transmission tasks so as to guarantee network schedulable. Meanwhile, both periodic tasks and abrupt ones are considered by adopting bandwidth pre-reserved idea.Finally ,the proposed network scheduling method is applied on a dual-cylinder pushing synchronous control system, and the simulation result proves it is effective.

关 键 词：网络控制系统 网络调度 综合调度策略 双缸同步控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]