Title :
Using deadbands to reduce communication in networked control systems
Author :
Otanez, Paul G. ; Moyne, James R. ; Tilbury, Dawn M.
Author_Institution :
Dept. of Mech. Eng., Michigan Univ., Ann Arbor, MI, USA
Abstract :
The most effective way to improve networked control systems (NCSs) performance is to reduce network traffic. By adapting a system to a network configuration, the communication medium is more efficiently used and time-delays are minimized. Adjustable deadbands are explored as a solution to reduce network traffic in NCSs. The stability of deadband control is derived and then verified via simulation. A method to determine the size of the deadbands is presented that relies on a performance metric that takes into account system response as well as network traffic. The effectiveness of deadband control with different controllers is studied as well as the effect of disturbances and plant uncertainty.
Keywords :
controller area networks; delays; minimisation; optimal control; stability criteria; telecommunication traffic; NCS performance; communication reduction; deadband control; network configuration; network traffic reduction; networked control systems; stability; time delay minimization; Brain modeling; Communication system control; Communication system traffic control; Control systems; Delay effects; Intelligent networks; Networked control systems; Sampling methods; Stability; Traffic control;
Conference_Titel :
American Control Conference, 2002. Proceedings of the 2002
Print_ISBN :
0-7803-7298-0
DOI :
10.1109/ACC.2002.1025251
