Title :
An Improved Feedback Deadline Assignment Algorithm for Real-Time Control Tasks Scheduling
Author :
Wang, Zhigang ; Wang, Wei ; Liu, Quanli
Author_Institution :
Res. Center of Inf. & Control, Dalian Univ. of Technol.
Abstract :
A feedback control method of deadline assignment (FC-DA) is presented to reduce output jitter of control tasks. The prevailing PID control law is employed, whose parameters can be adaptively adjusted online according to CPU load and jitter. The schedulability of whole task set is guaranteed dynamically. A simulation experiment shows the improvement when compared with proportional-only law
Keywords :
adaptive control; control engineering computing; feedback; real-time systems; scheduling; three-term control; CPU load; PID control law; feedback control method; feedback deadline assignment algorithm; output jitter; real-time control system; task scheduling; Communication system control; Computational modeling; Control systems; Feedback control; Jitter; Microprocessors; Processor scheduling; Real time systems; Scheduling algorithm; Three-term control; Earliest deadline first; Jitter; PID; Real-time control system; Scheduling;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1714385
