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Andries T avatar image
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Andries T asked tannerp commented

Collision in Rack when using multiple Shuttles

2D Multiple shuttles.fsm

is there a way to combine this with A* or Network navigation to avoid collissions when there are 2 shuttles working (they can both use other lanes) but not the main (green lane) at the same time.

I tried but they really cross each other inside the racking

FlexSim 20.1.3
flexsim 20.1.3astarmultideep
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tannerp avatar image tannerp commented ·

@Andries T,

You could try using an AGV network that includes Control Areas. I'm not sure if A* would have the ability to handle that logic, to be honest. Lastly, you could try using the "Handle Collision" logic in the shuttles, but this would likely become tedious.

Just some ideas.

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Regan Blackett avatar image Regan Blackett ♦ commented ·

@Joshua S

Would that your solution to the two-crane problem from last year be applicable here?

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Andries T avatar image
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Andries T answered tannerp commented

2D Multiple shuttlesv2.fsm


I got it working with the process flow, I tried with the collission detection above, but with or without, there is no difference.

I have an 'available bay' to get all pallets in the same row, but did not succeed in splitting that in 2 different ones for each shuttle as the moment I assign a bay, i don't know which shuttle is going to take it.

In the Process flow there is 'find slot' function, but I cannot intervene to mannually set the bay number. That would solve the problem I think,

Any thoughts?



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tannerp avatar image tannerp commented ·

@Andries T,

I am not very familiar with all the new warehousing tools yet, but I am pretty sure you can manually set the bay number (or at least look for a specific bay number) using queries. see this post for more information. I'm glad you've developed a potential solution!

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