Java Reference
In-Depth Information
GUI
draws
Inventory system
Machine
Transport
Assembler
schedules
Event clock
Figure 9.6
The system architecture
simulator architecture, the second phase on the manufacturing processes
implementation, and the last phase on the system integration.
Prototype 1: Event-based simulation
. This consists of a simple appli-
cation that exemplifies the event-based simulation mechanisms. The
simulation is limited to the automated inventory system. Simulation data
are shown in a textual user interface.
■
Prototype 2: Work cell simulator
. This adds a graphical user interface to
Prototype 1 and extends the simulator with all the work cell components.
■
9.4
■
Prototype 1: Event-based simulation
The first prototype exemplifies the functioning principles of the event-based
simulator. The test-bed consists in simulating the behaviour of the auto-
mated inventory system that supplies raw pieces to the drill and cutter
machines.
9.4.1
Analysis
The simulator is a single-threaded application that runs on a PC. It is made
up of a collection of finite state automata and a centralized clock, which
schedules and fires events. Figure 9.7 depicts the analysis model described
hereafter.
