Exploiting Job Response-Time Information in the Co-Design of Real-Time Control Systems
Embedded and Real-Time Computing Systems and Applications (RTCSA), 2015 IEEE 21st International Conference on
ABSTRACT
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 hyper period. 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. [XACB15] Yang Xu, Karl-Erik Arzen, Anton Cervin, Enrico Bini, Bogdan Tanasa, "Exploiting Job Response-Time Information in the Co-Design of Real-Time Control Systems", Embedded and Real-Time Computing Systems and Applications (RTCSA), 2015 IEEE 21st International Conference on |
|