Add members to the A * Star running the simulation

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Omar Aguilera Rico asked Oct 22, '18 Jordan Johnson answered Oct 22, '18

Add members to the A * Star running the simulation

Hi. I tell you a little about what I'm trying to do. Annex the following model. As you can see, a forklift transports the product to a Queue. When a Queue has a product, it is added to the A * Star. So I ask you, is it possible that the A * Star recalculates the routes each member adds when the simulation is running? I thought that every member who adds a member refresh, but I do not know how to do that. I was checking the code

Collision of people

but I have not achieved it, and I do not know if it is possible.

navigator.fsm

Software Version:

FlexSim 18.2.2

astar add member

navigator.fsm (26.9 KiB)

Answer 1 · 2018-10-22T21:25:26Z

Jordan Johnson answered Oct 22, '18

A* is not designed to have barriers added or changed during the model run. This includes Fixed Resources that are attached to the A* object. Only barrier that are present before the model is reset will affect the grid.

Answer 2 · 2018-10-22T20:40:02Z

Joshua S answered Oct 22, '18 Joshua S commented Oct 22, '18

A* recalculates a new route every time a task executor receives a task to go from one point to another. It also adjusts along the way if another operator gets in the way. It works by calculating a route, then tries to acquire each node along the path it found, and if something else currently has acquired the node it wanted, it recalculates again. In the visuals tab on the A* object you can select "Show Allocations" to see a better visual of the acquiring of nodes and the path the task executor plans to take. If you are dynamically adding Queues, I would suggest laying out the boundaries of your area using barriers because the creation of nodes is already set at the beginning of the model and doesn't change when you run the model.

· 1

Omar Aguilera Rico commented · Oct 22, 2018 at 08:57 PM

Now assign the limits of the nodes, but as the simulation runs the Queue are added to the AStar members but the forklift passes over the Queue. Annex the model.

navigator-1.fsm

0 ·

navigator-1.fsm (27.8 KiB)

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