Information Technology Reference
In-Depth Information
Afterwards, the Dispatch-effector is triggered again. This loop of
dispatching and communicating defines the basic behavior of the
warehouse manager agent and is executed throughout a simulation.
Besides triggering the main loop described above, the Start-event
also triggers a
CheckPlatform
-effector. To be aware of the status
of the plaforms (incoming and outgoing), the warehouse manager
agent cyclically checks all platforms. Each action of this effector
refers to the check of exactly one platform. Checking a single
platform takes 10 seconds (100 time steps).
The
TakeOrder
-sensor of the warehouse manager agent is activated
by an Order-event and updates the internal knowledge (i.e., adds a
new order to the list of open orders). This sensor action takes 10
seconds (100 time steps).
Events
The following exogenous events may occur in the simulation:
Start
-Event
Special event denoting the start of the simulation. This event is
sent to all agents at the beginning of a simulation.
Communication-Event
This event is triggered each time some communication is exchanged
between agents. As illustrated in Figure A.4, each communication
event transports a TransportCommand to the receiving agent.
Collision-Event
If two agents are moving to the same cell in the same moment a
collision occurs which is indicated by this event. Both agents remain
at their
old
cell, all sensor- and effector-activities are terminated
immediately and both agents are
out-of-order
for 15 minutes (9000
time steps). After these 15 minutes both agents receive a Start-event
and resume their regular behavior.
