Performance evaluation of distributed real-time scheduling systems using distributed production system simulator

Abstract

This paper deals with a distributed simulation system to evaluate distributed realtime scheduling systems. To simulate various kinds of hybrid systems of distributed and centralized architectures, the distributed simulator in this paper consists of three kinds of schedulers: factory level scheduler, shop level scheduler, and equipment level scheduler. Moreover, the distributed real-time scheduling system is implemented as a virtual production system. Finally, we show the simulation results of the distributed real-time scheduling systems to evaluate the dispatching rules and the overhead for real-time scheduling.

Object-oriented simulation of real-time scheduling in holonic manufacturing systems

“…New architectures of the manufacturing systems are therefore proposed aiming at realising more flexible control structures of the manufacturing systems, which can cope with the dynamic changes in the volume and the variety of the products and also the unforeseen disruptions such as breakdown of equipment and interruption by high priority jobs. (Okino, 1992), (Ueda, 1992), (Moriwaki, 1992), (Warnecke, 1993), (Iwata, 1994), (Wiendahl, 1994), (Sugimura, 1996), (Wyns, 1996), (Fujii. 1997), (Hatono, 1997) The objective of the present research is to develop an object-oriented simulation system of the holonic manufacturing systems (HMS).…”

“…(Okino, 1992), (Ueda, 1992), (Moriwaki, 1992), (Warnecke, 1993), (Iwata, 1994), (Wiendahl, 1994), (Sugimura, 1996), (Wyns, 1996), (Fujii. 1997), (Hatono, 1997) The objective of the present research is to develop an object-oriented simulation system of the holonic manufacturing systems (HMS). The main topics discussed in the paper are as follows;…”