Role of delays in networked control systems

Author

Mahmoud, Magdi S. ; Ismail, Abdulla

Author_Institution

Coll. of Eng., United Arab Emirates Univ., Al-Ain, United Arab Emirates

Volume

1

fYear

2003

fDate

14-17 Dec. 2003

Firstpage

40

Abstract

The purpose of this paper is to provide a complete diagnostic profile of the role of delays in networked control systems (NCS). It analyzes the impact of delay sources on the stability and performance of NCS. With focus on the network induced delay, it is shown that the relationship between the sampling rate and the network induced delay can only be determined by simulation. An upper bound on the network delays using dynamic controllers is developed in terms of an LMI-feasibility problem that can be readily solved using semi-definite programming tools.

Keywords

control system analysis; control system synthesis; delays; distributed control; linear matrix inequalities; real-time systems; signal sampling; software tools; stability; LMI-feasibility problem; NCS; NCS performance; NCS stability; delay sources; delays role; diagnostic profile; dynamic controllers; network induced delay; networked control systems; sampling rate; semi-definite programming tools; simulation; Access protocols; Communication system control; Control systems; Delay; Ethernet networks; Intelligent networks; Media Access Protocol; Multiaccess communication; Sensor systems; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003 10th IEEE International Conference on

Print_ISBN

0-7803-8163-7

Type

conf

DOI

10.1109/ICECS.2003.1301971

Filename

1301971