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  #1  
Old 05-12-2008
qin tian qin tian is offline
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Default coordinated task sequence, need help.

Suppose an operator team with 2 operators, and a ForkLift team with 2 forklifts. Operator will load from a queue flowitems and unload them to forklifts, and forklifts will travel to the second queue to unload the flowitems to the queue and retrun to accept next flowitems.

the rules are:

1 two operators will serve one forklift at a time.
2 forklift can carry 4 items one time.

how to model it using coordinated task sequence? thinks in advance.
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Old 05-12-2008
Alex Christensen Alex Christensen is offline
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I'm working on a solution. Coordinated task sequences like this are tricky, but possible. I'll post the solution as soon as I can.
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Old 05-12-2008
Alex Christensen Alex Christensen is offline
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I made a coordinated task sequence that does what you described. A few notes:

When you make a coordinated task sequence, you don't have a reference to the forklift you call, so I just told it to send a message to the queue. I made the real task sequence in the OnMessage trigger, using msgsendingobject() as a reference to the forklift to tell the operators where to put the flowitems.

I made one operator have a higher acceleration than the other. Otherwise, they would always be in the same place at the same time, and they would look like one person.
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Old 05-12-2008
Alex Christensen Alex Christensen is offline
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Here's the model
Attached Files
File Type: zip coordinated tasksequence2.zip (57.2 KB, 449 views)
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Old 05-12-2008
qin tian qin tian is offline
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Thank you, Alex.

I learn a lot from your model. I know coordinated task sequence is a powerful mechnism. But the documents and examples about it are not enough.

By this example, I learn more about it.

By the way, is there any other implementation so that we can understand coordinated task sequence more.

I used to consider using "Break ro requirement", but cannot figure out.
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