摘要
在令牌型总线网环境下,提出折衷网络带宽资源占用和传输周期抖动的两步优化调度算法.在满足实时性要求的前提下,通过确定网络化控制系统中各控制闭环节点的采样周期及其在最小倍周期时段内的数据传输序列,在兼顾周期抖动对控制闭环动态性能影响的同时合理地调配了带宽资源,使系统具有较高的网络资源利用率.
Two-step optimal scheduling algorithm for networked control systems (NCSs) on token-type bus networks is proposed, which is a tradeoff between bandwidth occupancy and jitter minimization. Through determining the sampling period of each control loop and the corresponding transmission sequences on the real-time requirement in networked control systems, bandwidth resources are allocated properly and utilized efficiently within the allowable range of jitter effects on dynamic performance. The simulation results show the usage of jitter optimal method.
出处
《控制与决策》
EI
CSCD
北大核心
2004年第4期397-401,共5页
Control and Decision
基金
国家自然科学基金资助项目(60074011
60174009).
关键词
网络化控制系统
时延
抖动
死限
Closed loop control systems
Computer simulation
Flowcharting
Jitter
Optimization
Sampling
Scheduling
