How to sequence AVG as arm on a machine

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rodrigue dibanda asked Sep 27, '16 Matthew Gillespie edited May 24, '19

How to sequence AVG as arm on a machine

I have a big challenge.

First of all, without changing the base of my model, I would like to set the color of the tote (flow item bin) as follow :

1st tote should be in blue; 2nd tote in green and the 3rd in yellow; the source should produce the color of the tote always in this order.

After that, the blue AVG should take the blue tote, the green AGV should take the green tote and the yellow AVG should take the yellow tote.

Finaly, when I run the model I don't want two AVG in the process at the same time ( for the Unloading station particularly). When I run the model, it's work sometimes depending of the process time, but I want a condition may (close or open port) to avoid this situation.

Many thanks in advance for your helps.

Software Version:

FlexSim 16.2.0

agv

-simulation-test-stage-1.fsm (251.7 KiB)

Answer 1 · 2016-09-27T19:05:02Z

Sam Stubbs answered Sep 27, '16 Sam Stubbs edited Sep 27, '16

Since the AGVs are always sequential, it isn't too difficult to create a sequential color alteration on the totes. I simply set a label on the tote's source called "current_color" which ranges from 0-2. Then simply created a Color by Case function in the On Creation trigger. Then in the code of that trigger at the end I entered the following:

int c_color = getlabel(current,"current_color");
setlabel(current,"current_color",c_color+1);
if (c_color>=2)  {
	setlabel(current,"current_color",0);
}

This increments the current_color to the next color of the agv, then cycles back to 0 after 2.

As for your other concern. I never saw any of the agvs unloading at the same time. Because each area requires the completion of the one before it, in order for the next AGV to move ahead, they were always spaced when I ran the model.

2662-simulation-test-stage-1.fsm (252.9 KiB)

Answer 2 · 2016-09-28T15:49:47Z

rodrigue dibanda answered Sep 28, '16

hello, thank you all , it's work perfectly.

How is it possible to display on dashboard : the Average stay time per type of color of tote ?

means : show for every color of tote the average stay time in every process.

the dashboard just shows a global stay time.

-simulation-test-stage-1.fsm

-simulation-test-stage-1.fsm (257.8 KiB)

Answer 3 · 2016-09-27T18:38:39Z

Jeff Nordgren answered Sep 27, '16 Jeff Nordgren edited Sep 28, '16

@rodrigue dibanda

Rodrigue,

Attached is your model with the change that I made to change the colors of the totes. The code is in the Code Snippet in the OnExit trigger of Source1. Simple code, no labels no fuss.

But I'm unclear as to what you are wanting in the "Finaly" section of your request. Can you be more specific as to what you are looking for and maybe give time(s) in the model when the "problem" occurs?

simulation-test-stage-1-jn1.fsm

3nhhk.png (28.8 KiB)

simulation-test-stage-1-jn1.fsm (252.6 KiB)

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