AGV does unwanted rotation after offset travel

Question

question

Patrick Zweekhorst asked Nov 02 2022 at 10:22 AM Matthew Gillespie commented Mar 31 2023 at 9:54 PM

AGV does unwanted rotation after offset travel

Hi,

In the attached model you see two situations where an AGV does some offset travel after the last control point. After some second the AGV needs to return to the control point driving backwards. However, the AGV just flips around and starts driving forward. How can we prevent this?

Thank you for any advice.

Patrick

OffsetTest.fsm

Software Version:

FlexSim 22.0.8

agv offset travel

offsettest.fsm (33.8 KiB)

Answer 1 · 2022-11-03T15:50:48Z

Kavika F answered Nov 03 2022 at 3:50 PM Matthew Gillespie commented Mar 31 2023 at 9:54 PM

Hey @Patrick Zweekhorst, from what I can tell, once the AGV passes the end of the current Path to perform the Offset travel, it will think it's not connected to the Path anymore and will try to turn around to get back on. If your Path Offset travel is lower (or you have an AGV Body Offset to counteract the Path Offset) and the AGV stays on the path, then it will remain forward facing.

agv-stop-on-path.gif (394.0 KiB)

· 3

Patrick Zweekhorst commented · Nov 04 2022 at 8:17 AM

Hi @Kavika F ,

Thank you for looking into this. You are correct, if the AGV stays at the path it looks to be working fine. However, in the actual model we do have separate paths (like to top example) where the straight path continues, but it is made out of multiple paths. In fact, the second path has a condition that states that the path is closed at that specific time, and that the AGV can only travel there with offset travel (creating 1 big path won't work). So, it would have been nice if the top example would have worked.

Do you think this behaves like it is intended to do and that we are modelling something that the AGV network is not able to do, or would you see this as a bug?

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Kavika F ♦ Patrick Zweekhorst commented · Nov 07 2022 at 4:33 PM

Hey @Patrick Zweekhorst, I just spoke with some developers and showed them this behavior. They verified that this is a bug. We're adding it to our list. Thank you for pointing out this behavior to us!

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Matthew Gillespie ♦♦ commented · Mar 31 2023 at 9:54 PM

@Patrick Zweekhorst This issue is fixed in 23.0.6 released today.

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