A Petri net based task scheduler as a real-time FMS controller

Author

Ang, Woi L. ; Bundell, Gary A.

Author_Institution

Dept. of Electr. & Electron. Eng., Western Australia Univ., Nedlands, WA, Australia

Volume

2

fYear

1996

fDate

18-21 Nov 1996

Firstpage

738

Abstract

Petri nets are particularly useful to model distributed systems with dynamic sequential dependencies, e.g. automated manufacturing systems. The Petri net based system modelling tool developed by the group has been extended to incorporate the capability to control real-time distributed systems. The graphical front end based on a Petri net model is able to interact with multiple remote controllers specified by the designer. The temporal information from the real time application can be fed back to the Petri net and used for further analysis. In order to illustrate the useability of this extension, the tool is used as a real-time FMS controller to drive a distributed system consisting of three robots, six conveyor belts and sensors, and three remote controllers

Keywords

Petri nets; flexible manufacturing systems; real-time systems; Petri net based task scheduler; automated manufacturing systems; conveyor belts; distributed systems; dynamic sequential dependencies; graphical front end; multiple remote controllers; real-time FMS controller; real-time distributed systems; remote controllers; robots; sensors; Automatic control; Control system synthesis; Control systems; Distributed control; Flexible manufacturing systems; Information analysis; Job shop scheduling; Manufacturing systems; Petri nets; Real time systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Technologies and Factory Automation, 1996. EFTA '96. Proceedings., 1996 IEEE Conference on

Conference_Location

Kauai, HI

Print_ISBN

0-7803-3685-2

Type

conf

DOI

10.1109/ETFA.1996.573996

Filename

573996