Truck is not going to its destination point and is showing this error.
root.rackPick.attach
The agent is not in the network.
An image of the error:
RackPick the exit block image
I'm looking forward to your positive response.
In the On Exit of the unbatch block type
agent.jumpTo(....);
Replace the dots with the location where your agents are supposed to be (e.g. node). That location should be part of the network that includes the racks.
Related
is there any easy way to detect that agent stopped on a roller conveyor because there are other agents ahead? I tried to use dynamic variable and conditional event but it is consuming too much performence. I don´t want to go for dynamically checking condition (with cyclic event) because I have some bad experience with it.
Thanks!
Try this:
Create a LinkedList<YourAgentType> agentsOnConveyor.
Whenever an agent enters the conveyor, call agentsOnConveyor.addLast(agent). When it leaves, call agentsOnConveyor.removeFirst(agent).
Now you have a linked representation of the agents on the conveyor.
Last, you use the "on stopped" field in the conveyor and pass the message "upstream" through the linked list, i.e. use a for-loop from the first to the last entry and send them a msg "conveyor stopped".
You may still need to check if the individual agent is moving itself or has also stopped, but it might put you on a working path
I have 2 storages (called storageA & storageB) and I want to move an agent (pallet) from one to the other via forklifts. I have set up the following.
A pallet is created at a node and is moved to storageA via 'store'. This part works fine. The pallet is then moved to storageB via 'store1' after a delay. This is when the following error occurs:
Exception during discrete event execution:
root.store1.seizeTrans.freeSpaceSendTo:
Path not found! {agent=2, source={level=level, pos=(1673.3333333333333, 3245.0, 0.0)}, target={level=level, pos=(1857.25, 3160.4845, 0.0)}}
It works if I replace 'store1' with a retrieve block and send it to a node first. However I would like to send the pallet directly to another storage rather than via another location. Is this possible?
Please let me know if I have not provided enough information.
Thanks
yeah unfortunately you can't do that as far as I know, the solution I use is the following, which is actually not a super robust solution... but has been ok in applications so far
Place a retrieve block between your delay and your store1
Use the agent you pick up as destination:
on the on seize action of the retrieve block do:agent.transporter=unit;
4.On the store1 block put the highest priority for the task
5. ON the store1 block use resource custom transporter choice: agent.transporter.equals(unit)
6. The dispatching policy should be nearest to the agent in store1, but doing all the above ensures that the resource continues doing the task no matter what... by only using the dispatch policy your model will work 99.999999% of the time... the problem occurs only if another task with higher priority occurs at the exact same time as the transporter is released in the retrieve block, which is rare, but can happen.
I had the same question today so I landed here. But luckily, only after the second step written above, the whole process needed did already work for my case. We can move an agent from one storage to another by simply set the destination of the 'retrieve' block to the coordinate of the agent and the move to independently instead of by fleets or resources. after that we put the 'store' block.
Destination is: (x,y,z)
X: agent.getX()
Y: agent.getY()
Z: agent.getZ()
after agents being retrieved to a specified coordinate, it seems that fleets do not comply paths in the network anymore
I am currently working on a parking place simulation. Before entering the parking place, a car has to cross a border. To simulate that, I added a "carMoveToBorder" block, where the car moves to a stopline. Then I added a service block to simulate the time getting served by the borderService. Now that I am having a car network, I dont really know how to specify the location of the delay or the queue inside the service block. I tried specifying the location of the delay by entering the name of the stopLine but I got an error message saying: Type mismatch: cannot convert from Agent to AnimationStaticLocationProvider
Pictures are below.
Help is appreciated.
Thank you for your time.
borderServicePicture1
borderServicePicture2
why dont you try to use Delay instead of Service. One of the difference between them is that Service has embedded queue. But maybe in your case the car will never use that queue, i mean if its right in front of border but not quite there, it means its still in CarMoveToBorder block. And i guess in Delay you just dont have to set any agent location. (btw, what happens if you leave agent location blank in Service?)
I am building a DES-ABM hybrid model in AnyLogic.
The agents go through the DES blocks, among which multiple Delay blocks.
How do I
access an agent which is in a Delay block
or peferrably
acces the specific agent which triggered the 'on enter' action of the delay block?
My ultimate goal is to open or close a valve object on the agent frame
So can I/ how do I
A. open or close the valve on the agent frame directly form the main/root frame (on which the Delay block is located)
or if that is not possible
B. send a message or trigger a statechart within the specific agent which will then open or close the valve from the agent's own frame?
I have tried to use the 'DelayBlockName'.agents() function, but this does not work and returns [] when I check it using traceln.
access an agent which is in a Delay block or peferrably
use the keyword agent. These keywords differ for different library blocks so best start learning about the lightbulb and how it can help, see here.
acces the specific agent which triggered the 'on enter' action of the delay block?
When you write agent. in the "On enter" block, every agent coming through will execute that code, so by definition, it is always the specific agent :)
My ultimate goal is to open or close a valve object on the agent frame So can I/ how do I A. open or close the valve on the agent frame directly form the main/root frame (on which the Delay block is located) or if that is not possible B. send a message or trigger a statechart within the specific agent which will then open or close the valve from the agent's own frame?
this is something completely different to your original question and just... messy. Please limit questions to 1 topic so it is easy for us to answer :) (see this guide for more)
I'm new to AnyLogic and I have a problem that I'm not able to solve...
I "Main", section "Space and network" I put "Layout type" and "Network type" as "Random" and I checked the box "Apply on startup"...at the beginning I have my nice social network
Yet agents born and die...the problem is that when I add agents main.add_individuals() the newly created agents do not have connections! So I when all the intial agents are dead I find my self with agents but with no network!
How can I do? When I add a new agent I want it to connects with others :S
Thanks!!!
I tried the following
but it didn't work...I always end up with a population without network
one way is to do it manually during agent creation (the "On startup" parameter) with the connections.connectTo(Agent). This code will connect the agent to about half of the agent in your agent list. You could also use normal() instead of 0.5 to get a more realistic number of connections.
for(Agent ag : yourListOfAgents){
if(random() < 0.5){
connections.connectTo(ag);
}
}