Application of reinforcement learning on a robot

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Lorenzo_pio G asked Oct 8, '22 Jeanette F commented Oct 19, '22

Application of reinforcement learning on a robot

Hi! That's my model. I wanto to apply Reinforcement Learning to the robot called Robot1. The idea is that the robot, based on the number of boxes on the pallet placed on combiner1, should choose on which combiner to deposit the box. Each pallet collects 10 boxes before passing the load to the left queue. Robot1 should help Robot2 load the boxes on the pallet present on combiner1 until the number of boxes on the pallet becomes more than 6. As soon as this happens, Robot1 must start carrying the boxes on the combiner called "Impacchettamento" First I want to identify as a variable the instantaneous number of boxes on the pallet present on combiner1. Next I want to identify as an integer the combiner that robot1 is using. I need these variables to identify the observations and actions of the RL.

Bakery1.fsm

Software Version:

FlexSim 22.1.3

robot reinforcement learning combiners

1665234839424.png (225.8 KiB)

bakery1.fsm (422.9 KiB)

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Jeanette F ♦♦ commented · Oct 19, 2022 at 07:21 PM

Hi @Lorenzo_pio G, was Felix Möhlmann's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

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Answer 1 · 2022-10-10T06:24:35Z

Felix Möhlmann answered Oct 10, '22 Lorenzo_pio G commented Oct 14, '22

You should start by building a control logic that allows the two robots to act independently from one another, instead of just having them execute transport tasks generated by the queue. For example, you can have the queue push the items to a list and the use a process flow, in which tokens (that represent the robots) pull those items off the list. They can then decide where to unload them depending on whether there are pallets present on either combiner and how full those are.

This tutorial deals with task dispatching using lists.

The following expression would check if there is pallet on combiner1 and whether it holds more than 6 items.

Model.find("Combiner1").subnodes.length > 0 && Model.find("Combiner1").first.subnodes.length > 6

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Lorenzo_pio G commented · Oct 10, 2022 at 02:26 PM

So do you recommend that I use Process Flow? Isn't there an alternative?

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Felix Möhlmann Lorenzo_pio G commented · Oct 10, 2022 at 02:58 PM

Yes, I would recommend Process Flow. In theory you can do anything by writing custom code into the trigger functions and other options of the 3d objects. But Process Flow gives you most of the code you'll need in pre-defined activities and the visual nature makes it much easier to follow the logic you are building and debug any problems.

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Lorenzo_pio G Felix Möhlmann commented · Oct 10, 2022 at 04:38 PM

If I eliminate a robot should I still use process flow?

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