In my model I have used the moveToBy block introduced in the jobshop model. I use this block to deliver the agents(product) to the destination by the resource (forklift). I set all the speed options I saw to one meter per second. The problem that occurs in time of running the model is that the forklift suddenly jumps home after getting rid of the product, while I want the forklift to return home through the path and at the same speed. this is picture of the moveToBy block and where I use it.
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When the tank gets empty the valve get close for 30 minutes (this 30 minutes is for cleaning the tank) am using dynamic event for that. as showmen in image below.
Now what I want to do is
use Resoucrepool (a worker) for cleaning the tank.
Use Resoucrepool (a worker) for opening and closing the valve.
Its there any way to achieve that?
what you can do is that on the "on empty" action in the tank, you generate a token, which is an agent called cleaningRequest that goes into a flow that requires a resource (enter-service-sink), and you close all the valves to avoid using that tank.
When the resource is released, or when the token gets to the sink, you open the valves again.
I only answered question 1, but question 2 should follow the same technique
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 have to simulate a traffic on a highway using anylogic 8 learning edition, what I want to do is the control the car speed on road basis for ex if my car move from road1 to road 2 thru CarMoveTo I want to change the speed when it enters the road2... I tried to use "on enter" and "on exit" of the CarMoveTo but with no success and I even tried to use the Car API with no success too. I think I missed where is the suitable location to write the following code:
if (getRoad().equals("Road2"))
setPreferredSpeed(0, MPH);
Any Help?????
First, I think your getRoad().equals( "Road2" ) may be problematic. getRoad returns a road object according to intelliSense, not a string. Try taking out your quotation marks.
To set the speed at a certain road, try one of the following:
1) Use a stop line and on crossing the line, call your code to set the speed. No need to figure out what road you are on, because the stop line will inherently be on the road of interest.
2) Use a road network descriptor, and call your code "On Enter Road"
If move to only applies to road2, you could also set it there. However, if your move to block gives the car an overall destination that just happens to go through road2, then this would not be the right place, as it would get called just the first time the car enters the move to block.