Triggering the "Travel to home" trigger will cause the model to stop.

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question

Steven Chen asked May 27, '20 Alessio Merlo commented May 28, '20

Triggering the "Travel to home" trigger will cause the model to stop.

Hello there,

I have a question.

I execute Source for 200 seconds to create the project output to sink, agv triggers "On Resource Available" to run "Travel to Home", but the model stops at 105.98 seconds.

Can you help me see what happened?

Because triggering the "home" trigger will cause the model to stop.

Help me solve this problem.

problem

Software Version:

FlexSim 20.1.2

flexsim 20.1.2 travel to home

traveltohome-error.fsm (30.0 KiB)

Answer 1 · 2020-05-27T16:53:03Z

Phil BoBo answered May 27, '20 Alessio Merlo commented May 28, '20

The issue is on line 20 of the pickoption's code. It is passing a 1 for var2, which has specific meaning to the Network Navigator.

In earlier versions of FlexSim, var2 was not used by the AGV Navigator, but now it specifies a target offset distance. So the TE is traveling 1 meter ahead of the control point, which is far enough away that the check on line 17 continues to be true and he thinks he hasn't arrived at his home location. Thus, he continues to try to travel to that spot, but he's already there, so he gets into an infinite loop of creating task sequences to go to the point where he already is.

You can fix it by changing the parameters on line 20 from:

ts.addTask(TASKTYPE_TRAVEL, dest, NULL, 0, 1);

to:

ts.addTask(TASKTYPE_TRAVEL, dest, NULL, 0);

I'll add a case to the dev list to update this pick option to account for the AGV Navigator's new behavior.

1590598285157.png (294.1 KiB)

· 1

Alessio Merlo commented · May 28, 2020 at 06:42 AM

Thanks Phil!

I noted the same issue yesterday. I will waiting the fix in the next release!

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