将代理位置保存在“seize”块中并在“move-to”块中使用位置

Question

My model is a basic warehouse situation model. Trucks enter the model, are seized by an empty loading dock resource and then offloaded by the forklifts. The trucks location (loading bay 1, loading bay 2 etc.) is determined by the available resource that gets seized. My "move-to" block then has the "move to location of seized resource" option ticked. In this case, the truck half of the model is working as expected.

The forklift half is a little harder. I have been advised to inject pallet agents into the model instead of splitting them off the incoming trucks. The problem is that I can't specify the location of the agents to a specific resource.

How can I save the location of the newly parked truck (loading bay 1, loading bay 2 etc.) in a variable, and then call on that same variable to inject the agents into that location? The nodes that are acting as the loading bays, are the home locations of specific resources (loading bays).

When I save the location (varAgentLocation = getNetworkNode();) I have to set the variable type to type "custom" (INode) to void errors. The if I type "varAgentLocation" in the location box of the source, I get an error stating that the types are not the same (INode and InitialLocationType)

Answer 1

Using home locations for your (non-moving) loading bay resources is unnecessary.

Just have them as custom resource agent types (eg, agent type LoadingBay , not vanilla Agent ) with a type Node parameter that you set at model startup to be the relevant space markup nodes. (You need to have the resource pool add the resource agents to a custom (initially empty) population of LoadingBay s you've created beforehand; this allows you then to loop through the resource agents at model startup to setup any parameters, etc. for them.)

Then probably the most coherent way is to

• Copy this value into a variable within your Truck agent via the on-seize action of your Seize block.

• Have your Pallet agents created with a reference to the Truck agent they came from (in a variable or parameter). There are various design alternatives for whether the pallets exist beforehand (where you might use an Unbatch block to 'release' them) or whether you create them on the fly.

• When you inject pallet agents into, say, a Source block, set that to have the arrival node (which can be a dynamic expression) getting the relevant node from the 'parent' Truck agent (eg, something like agent.arrivalTruck.loadingBayNode ).