列车网络控制系统的调度与控制协同设计方法  

Scheduling and control co-design for train networked control system

作　　者：凌云[1] 张和生[1,2] 杨军[1] 

机构地区：[1]北京交通大学电气工程学院,北京100044 [2]轨道交通控制与安全国家重点实验室,北京100044

出　　处：《电子测量与仪器学报》2013年第11期1086-1092,共7页Journal of Electronic Measurement and Instrumentation

基　　金：国家自然科学基金(60874079;61174179);轨道交通控制与安全国家重点实验室自主课题(RCS2009ZT003);铁道部重点项目(2011Z001-D);中央高校基本科研业务费专项资金(2011YJS213;2012YJS113)资助项目

摘　　要：网络控制系统存在调度与控制相互约束的问题,针对CAN作为总线的局部列车网络控制系统,为提高其在调度与控制相互约束下的综合性能,以消息传输时延和丢包率为优化目标,可调度条件和控制系统稳定性为约束,将调度与控制协同设计转化为关于传输周期的多目标约束优化问题,并利用遗传算法求解所述问题,得到优化的传输周期,最后给出了优化实例。结果表明,得到的传输周期可以在约束下使网络性能达到最优,满足列车对消息传输实时可靠的要求。在该列车网络控制系统中,所述调度与控制协同设计方法是可行的。There is a conflicting problem between scheduling and control in networked control system. For local train networked control system based on CAN bus, in order to improve its overall performance under the premise of this problem, the transmission delay and packet loss rate are treated as optimization objectives, the schedulable conditions and the stability of control system are treated as constraints. Then the co-design of scheduling and control is formulated as a multi-objective constrained optimization equation with respect to transmission cycle, and genetic algorithm is used to solve the equation. Finally, an optimized instance is given in this paper. The results show that the transmission cycle we get can achieve optimal network performance under the constraint condition and meet the real-time and reliability requirements of messages transmitted in the train network. So in this networked train control system, the co-design approach of scheduling and control described above is feasible.

关 键 词：列车 调度 控制 传输周期 协同设计 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] U285[自动化与计算机技术—控制科学与工程]