Exploiting Job Response-Time Information in the Co-Design of Real-Time Control Systems

被引：9

作者：

Xu, Yang ^{[1
]}

Arzen, Karl-Erik ^{[1
]}

Cervin, Anton ^{[1
]}

Bini, Enrico ^{[2
]}

Tanasa, Bogdan ^{[3
]}

机构：

[1] Lund Univ, Dept Automat Control, S-22100 Lund, Sweden

[2] Scuola Super Sant Anna, Pisa, Italy

[3] Linkoping Univ, Dept Comp & Informat Sci, S-58183 Linkoping, Sweden

来源：

2015 IEEE 21ST INTERNATIONAL CONFERENCE ON EMBEDDED AND REAL-TIME COMPUTING SYSTEMS AND APPLICATIONS | 2015年

关键词：

SELECTION;

D O I：

10.1109/RTCSA.2015.23

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

We consider a real-time system of multiple tasks, each task having a plant to control. The overall quadratic control cost is to be optimized. We exploit the periodicity of the task response time, which corresponds to a periodic delay pattern in the feedback control loop. Perturbed periods are used as a tool to find a finite hyperperiod. We present an analytical procedure to design a periodic linear-quadratic-Gaussian (LQG) controller for tasks with fixed execution times as well as a numerical solution to the periodic-stochastic LQG problem for tasks with variable execution times. The controllers are evaluated using simulations in real-time scheduling and control co-design examples.

引用

页码：247 / 256

页数：10

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