During the creation of a generalized warehouse model, I ran into a problem when trying to create an order event that can be used by order pickers to retrieve the products from the storages racks. Currently, I am using a source block which creates "orders" of a single type of pallet (1 to 5). The pickers each travel to pick up a pallet from the rack and transports them to the next location.
Question: How can I create an order consisting out of several pallets consisting of different types.
Question: How can I use a single picker (resource) to pick multiple pallets in a single run through the warehouse before transporting all the pallets to the next location (process).
Kind regards,
Stefan
Question 1
normally i would create a class for the higher level order (say Pickwave class).
And when instantiating it you need to save a list of actual picking orders(pallets) into it (say collection of type ArrayList<Order>).
And to process your pickwave you can use a loop which will steer your resource/transporter/picker to the next Order location until all orders are picked. If everything is picked you exit your loop and move to your next location
Question 2
you don't really pick the orders as you would normally pick them using RackPick block in 1-to-1 scenario. But as you have a refence to all your orders inside you pickwave object you can still control their location/animation programmatically.
Related
Essential, I aim to model the picker process in a warehouse. In my scenario a worker is given a randomly generated list of items to complete an order. The worker goes to the storage and complete the order. In my model each agent/worker only collects a single item per run and I'd like to know how to set each worker to randomly collect multiple items(say ten) in one run
I added the storage shelves and added the retrieval block and assigned worker agents to it. I did not know how to set up the picker scenario
If you use a RackSystem as shelves, so you can use the function myRackSystem.randomAgent() to select a random pallet from the RackSystem.
If when you generate your pallets you put them into a population, So you can use the function randomWhere( pallets, p -> p.weight > 1000 ) to select a random agent from a population and satisfying the specified condition.
Good luck!
In my model I only want to batch agent which are at the same location. So my source block generates the agents according to a database to a specific node (which is sometimes different for agents), now I want the agents that occur at the same node to batch in sizes of 2 and the one that are left over need to be batched alone.
How can I model this, I know that I can use the selectoutput (which says for example if location=node1 use this output etc) option, but do I than have to add for example manually 100 outputs if I've 100 different locations where the agents start or is there a more simple solution for this problem?
Added later:
Or is there another way to model my idea:
So I'm simulating an hospital environment, where logistic employees (in this case the transporter) based on predefined times collects the thrash on certain areas for example the databaserow I show in the picture below:
At 9:50, the thrash at thrash collection point at LAB_Office_2_H_T_N can be collected by the logistic employee.
So in my model I create this 2 agents (which are 2 containers, last column) based on this time and seize a transporter to collect this thrash. Since a logistic employee is able to collect 2 thrash in one time I want to batch it and let the logistic employee collect 2 thrash containers at once.
After that he transports it to the thrash dump area and is released.
The colors changed after the added information. You can use pickup and dropoff blocks instead. You can define your node requirements in the condition cell. You can use local variables like container and agent to code whatever you want. Or use "Quantity (if available)" option. There you can programmatically define how many units will be picked up by using your own function.
In my source block I want to be the amount of agents based on two different factors namely the amount of beds and visitors per bed. The visitors per bed is just a variable (e.g. visitors=3) and the amount of beds is loaded from the database table which is an excel file (see first image). Now I want to code this in the code block as shown in the example in image 2, but I do not know the correct code and do not know if it is even possible.
Simplest solution is just to do the pre-calcs in the input file and have in the dbase.
The more complex solution is to set the Source arrivals as:
Now, you read your dbase code at the start of the model using SQL (i.e. the query constructor). Make the necessary computations and create a Dynamic Event for each arrival when you want it to happen, relative to the model start. Each dynamic event then calls the source.inject(1) method.
Better still is to not use Source at all but a simple Enter block. The dynamic event creates the agent with all relevant properties from your dbase and pushes it into the Enter block using enter.take(myNewAgent)
But as I said: this is not trivial
I'm creating a model based on the product delivery example provided by AnyLogic. In my own model, I want a truck to deliver multiple orders in one trip instead of one. My process diagram is shown below. Here, an order enters via the enter block and several orders are accumulated in the batch block. Every order has a specified destination. How do I model the truck such that it combines two orders and move to the nearest delivery location first and then the second etc?
The main problem is that I don't know the code that accesses the parameter "Delivery location" in each order.
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Additional information:
The orders agents are generated and the delivery location is stored in a parameter called "client"
The batch block combines (lets say 2) orders into a batch of the type Order ( advanced settings set to population of agents)
The service block pulls a truck from the resource poule and send the batch of orders to the truck agent using send(batch.unit)
The truck agent stores the order/orders(?) in a variable called "order"
Then, a moveTo function should deliver the order to the first destination
What would be the code to move to the first, second etc., destination?
Here is the conceptual piece you are probably not aware of, and that should help you move in the right direction:
you can have "for loops" as part of your process flows. Below, you see an example where an agent keeps driving to places until it has no more parcels.
Obviously, the details of the blocks depend on your model but in each, you can access the truck's orders if you have them in your Truck agent type (which is needed, obviously).
I'm building a model with AnyLogic using the Process Model Library (PML).
In my network I have 4 "source" elements that emits agents, they are all of the same type but with a different "category" string ID inside them (saved as a variable) to differentiate them; they are purchase order from different departments. I have also inserted blocks to measure the time the agents spend to exit from the assembler elements (you will see in the picture inside the red circles). This is the time that I will want to plot in a graph to show how fast they are.
After some test and reading the documentation I have see that when an agent pass under the start photocell (agent of any department) a timer is activated and the opposite when an agent (agent of any department) pass under the stop photocell the timer is stopped. Also in case of agent with different category IDs.
How can I synchronize the timers to measure time of object with the same category ID? I want that if the first source element "Category Nilo&Salmoni" produce an agent the stopWatch measure the time of this one and not of another one, emitted from another category, that reach the stopwatch first.