Title :
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
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;
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
DOI :
10.1109/ETFA.1996.573996
