How to find the AGV behind another?

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Nicholas Grazioli asked Apr 6, '22 Jason Lightfoot answered Apr 7, '22

How to find the AGV behind another?

Hi,

I would like to know how to find one AGV that is behind another, on accumulation Path.

I tried to use the code below to read information about behindAGV on the agv node in the AGVNetwork variables,but I failed (the result is always 0), even though I can read other information, with the same code, such as resetPoint.

var behindAGV = getsdtvalue(agvNode, "behindAGV"); // Result = 0

There is anoher way to read it?

I leave a screenshot of the situation.

Software Version:

FlexSim 22.0.2

agv agvnetwork accumulation agv accumulation

1649257740022.png (145.9 KiB)

5 |100000

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Answer 1 · 2022-04-06T16:23:53Z

Jason Lightfoot answered Apr 6, '22

Can you rework it so that you find the one ahead using agv.accumAheadAGV?

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Nicholas Grazioli commented · Apr 07, 2022 at 06:58 AM

I tried, but I find myself in a strange situation where only the AGV in front has the information about the one behind. The AGV behind it has no information on who is in front of it (aheadAGV = NULL).

I am attaching some pictures and a model that show the problem.

Find_BehindAGV.fsm

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allocation-error.png (60.6 KiB)

agv1-info.jpg (907.3 KiB)

agv2-info.png (89.1 KiB)

find-behindagv.fsm (61.6 KiB)

Jason Lightfoot ♦♦ Nicholas Grazioli commented · Apr 07, 2022 at 01:39 PM

Regardless of what you see in the sdt structure it still returns the agv ahead:

AGV agv=AGV(Model.find("AGV1"));
return agv.accumAheadAGV;

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1649338755747.png (8.8 KiB)

Nicholas Grazioli Jason Lightfoot ♦♦ commented · Apr 07, 2022 at 01:45 PM

Thanks, it works.

I didn't try with accumAheadAGV, because I've always seen a NULL value in ahedAGV of the AGV1.

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