Forklift Object Collision

Question

question

Jigar P asked Aug 5, '21 Arun Kr answered Aug 6, '21

Forklift Object Collision

I have 2 forklifts which collects the pallet load from Queue and places on racks. All my members are A-Star Navigator. I expect them to not collide/wait if one of the forklift is already collecting a Pallet. However, in my model at time 320 sec, the forklift object collides. Is it possible for them to either wait or have an offset. Snapshot and Model attachedWarehouse_Model_1.fsm

Software Version:

FlexSim 21.1.2

flexsim 21.1.2 astar navigator forklift collision avoidance astar collisions

forklift-collision.jpg (97.6 KiB)

warehouse-model-1.fsm (1.6 MiB)

Answer 1 · 2021-08-06T03:06:44Z

Arun Kr answered Aug 6, '21

Hi Jigar.

Attached is the modified model. I have introduced a logic in the process flow to disallow the collision of forklifts. Basically, the logic checks a Flag label on Queue3. When a forklift reaches Queue3 for loading /unloading the label value is set to 1. And when the forklift goes back, the flag value is set back to 0. So when the flag value of Queue3 is 1 due to the presence of a forklift. No other forklift is allowed to reach Queue3. It is done by diverting the token to a wait for event activity. The forklifts will wait outside the junction. Once the forklift, which is inside the Queue3 area goes back, others can enter. The same problem can be addressed using an agent module or using other navigation in FlexSim( network node/ agv). Follow-up questions we can talk via email.warehouse-model-1_1.fsm

Regards,

Arun KR

warehouse-model-1-1.fsm (1.6 MiB)

question