| 多网段控制系统实时任务的建模与调度 |
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| 引用本文： | 何坚强,张焕春,经亚枝.多网段控制系统实时任务的建模与调度[J].南京航空航天大学学报,2006,38(1):43-46. |
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| 作者姓名： | 何坚强 张焕春 经亚枝 |
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| 作者单位： | 1. 南京航空航天大学自动化学院,南京,210016;盐城工学院自动化系,盐城,224003
2. 南京航空航天大学自动化学院,南京,210016 |
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| 基金项目： | 江苏省高校自然科学基金 |
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| 摘 要： | 网络化控制系统中任务的调度影响控制系统与网络的性能。多网段控制系统中节点任务、通信任务与网关任务的调度是具有顺序、时限与网络资源约束的NP完全问题。建立了多网段控制系统控制任务的数学模型,以控制回路的采样周期与网络利用率为优化目标,采用遗传算法实现控制任务调度,优化了系统整体性能,仿真实例证实了调度模型及调度算法的有效性。
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| 关 键 词： | 调度 实时系统 遗传算法 网络化控制系统 |
| 文章编号： | 1005-2615(2006)01-0043-04 |
| 收稿时间： | 2005-01-11 |
| 修稿时间： | 2005-05-12 |
Modeling and Scheduling of Real-Time Tasks in Multiple Segment Network Control Systems |
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| He Jianqiang,Zhang Huanchun,Jing Yazhi.Modeling and Scheduling of Real-Time Tasks in Multiple Segment Network Control Systems[J].Journal of Nanjing University of Aeronautics & Astronautics,2006,38(1):43-46. |
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| Authors: | He Jianqiang Zhang Huanchun Jing Yazhi |
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| Abstract: | The scheduling of control tasks influences the performance of control systems and networks.The scheduling of distributed control tasks in multiple segment networks is a NP-complete problem with constraints of the sequence,the deadline and the network resource.The mathematical model for real-time tasks is established.Based on genetic algorithms,the optimization of control tasks in multiple segment network control systems is studied.The sampling period and the network utilization rate are considered simultaneously,and the whole performance of control systems is optimized.Simulation results prove the efficiency of the proposed model and the algorithm. |
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| Keywords: | scheduling real-time system genetic algorithm networked control system |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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