question

Gensho H avatar image
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Gensho H asked Joseph Gillespie commented

Minimize distance in picking model

The attached model is an example of a warehouse picking operation:

1. How can we minimize the distance of "Operator Total Travel”?

2. When there are many queues (racks or shelves) in a warehouse and many orders & rounds in each customer`s request, how can we have the model get the closest way of picking by each round?

singlepick-rev1-queue25pcsqueue-revicearrange.fsm

FlexSim 18.0.10
pickingdistance traveled
singlepick-rev1-queue25pcsqueue-revicearrange.fsm (41.4 KiB)
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1 Answer

Benjamin W2 avatar image
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Benjamin W2 answered

Hi @Gensho H,

It looks like you are looking for a solution to the classic "Traveling Salesman" problem (https://www.youtube.com/watch?v=SC5CX8drAtU). To find the best route between each item would require 25! or 1.55e25 iterations to find. This computation would have to be completed for each order.

I think that your best bet would be to use the Optimizer to minimize the distance traveled. This would be easiest if you incorporate process flow into your model.

Could you expound on your 2nd question? I'm not sure what you mean by "orders & rounds".

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