| 实时控制任务的模糊反馈调度系统研究 |
| |
| 引用本文： | 雷飞,邹益仁,周靖林. 实时控制任务的模糊反馈调度系统研究[J]. 信息与控制, 2005, 34(5): 585-590 |
| |
| 作者姓名： | 雷飞 邹益仁 周靖林 |
| |
| 作者单位： | 1. 北京工业大学电子信息与控制工程学院,北京,100022;中科院自动化研究所,北京,100080
2. 中科院自动化研究所,北京,100080 |
| |
| 摘 要： | 分析了实时控制任务的控制性能在不同控制阶段与处理器利用率需求间的关系,提出一种实时控制任务的模糊反馈调度系统.模糊控制器通过监测实时控制任务的误差及其变化率,查询模糊决策表,动态决定任务的优先级,反馈调度器根据优先级分配任务的利用率.仿真结果表明，在计算资源有限时，该方法能有效改善实时控制任务的控制性能.
|
| 关 键 词： | 实时控制 反馈调度 模糊 性能损失 |
| 文章编号： | 1002-0411（2005）05-0585-06 |
| 收稿时间： | 2005-03-08 |
| 修稿时间： | 2005-03-08 |
A Fuzzy Feedback Scheduling System for Real-time Control Tasks |
| |
| LEI Fei,ZOU Yi-ren,ZHOU Jing-lin. A Fuzzy Feedback Scheduling System for Real-time Control Tasks[J]. Information and Control, 2005, 34(5): 585-590 |
| |
| Authors: | LEI Fei ZOU Yi-ren ZHOU Jing-lin |
| |
| Abstract: | The relationship between the performance index and the processor utilization of real-time control tasks in different control phases is analyzed,and a fuzzy feedback scheduling system for real-time control tasks is proposed.By monitoring the current error of real-time control tasks and its derivative in real time,the fuzzy controller queries the fuzzy control decision-making table(FDT) and assigns priority to tasks dynamically,then the processor utilization is assigned to a task by feedback scheduler according to the priority.Simulation result shows that this method can improve the performance of real-time control tasks under limited computing resource. |
| |
| Keywords: | real-time control feedback scheduling fuzzy performance degradation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《信息与控制》浏览原始摘要信息 |
|
点击此处可从《信息与控制》下载全文 |
|
