I have a model that generates a total of 5 loads, each load generated every 2 seconds. When the 5 loads are waiting to be transported, only 1 transporter is called. The transporter fleet has 9 vehicles here.
I have tried to use a seize transporter block before the convey block, but that only results in 5 transporters queuing at the conveyor for the loads to be generated and picked up.
How can I call a transporter for each of the loads? (In the solution, 5 transporters should be called when they enter the conveyor) Thanks for your help in advance, I am stuck.
EDIT 1
I tried out a suggested approach, but my method only generates new transporters with the agent name "Car". How can I call Cars from the existing transporter fleet?
As usual, many ways :-)
One could be to create a separate flowchart for your transporters. When a package enters the top conveyor, it can trigger 1 transporter to MoveTo the end of the conveyor location. For that, add a MoveTo block into the new, separate transporter flowchart.
This will make transporters waiting at the conveyor exit, ready to pick up stuff.
Be careful, though, to only summon transporters that are idle anyway.
cheers
Related
Iam trying to build a model represented as shown but the main problem is how to put my hands on transporters and can do sequence logic on them while been loaded and unloaded along the path among my flowchart sequence.assign queue and delay blocks to my transporter type.
error while doing that.
First, i wanted to make a queue and delay before reaching loading point but when i ran the model i had an error as i tried to cast the delay and the queue to my transporter agent (forklift) and not the material item type(agent) , and when i tried to cast it to my agent (material item type) it didn't respond or see the delay or the queue and the transporter didn't stop.
After loading i want to make a second stop (delay) and queue of transporters out side it but , the model only see the delay and (loaded transporters) ran through the queue and stop in the delay block and i want to investigate the queue but the transports didn't stop in it.
Not quite clear what you need but it sounds like you want to explore preparation flow charts as part of Seize and Release actions, see https://anylogic.help/library-reference-guides/process-modeling-library/resourcetaskstart.html.
With these, you can make your resources (forklifts) follow some flow chart logic before they are actually being seized by your agents. This also works with transporters afaik
[Model]
https://i.stack.imgur.com/xRIhB.jpg
I am trying to model a batches loaded by 2 cranes (service block) on a transporters fleet. then transporters move to unloading area by another 2 cranes (for now represented in flow chat as a delay2 block ).
the problem i am facing with transporters i want them to have a first stop (delay 1) before they(loaded) carried the batch and move according to the path. i tried to model the first stop by a seize transporter ( destination to delay node), delay , after they stop, they carry on to their agent location ( batch) to be loaded i represent that by another seize( destination is agent) , move by and release transporter after second delay.
i got a miss behavior after transporters been delayed and released in first delay ,as they didn't see the agents and carry on on their path ( some times they go to load and some time they don't).
I am modelling earthmoving operation. Every trench agent seize two transporters, one excavator, and one truck. When truck is released it will do some other job before been seized again by the same trench. So this process repeat until the trench will be empty.
The process is occuring for two three times without any problem but after two three times the trench agent is not go out of the seizeTransporter block (the one that seize truck). I have a delay block after the seizeTransporter block and it use Maximum Capacity. So it should not be a problem and it should not prevent the seizeTransporter block out port to push the trench out.
I noticed this is hapenning when the truck stop to resolve a collision. It looks like the collision cannot be resolved and the truck stay where it is for ever. :))
I have tried so many things that could solve this problem but none of them works.
There is an option in the material-handling library TransporterControl element to override transporter conflicts after some time. Maybe reduce the default timeout of 10 model time units, see below:
I'm a new AnyLogic user so hopefully this is a simple problem. I would like to use a block as to represent a storage area for items to be used in an assembly, I am using the delay block with delay time of 0, but maybe the queue block would be more appropriate? I have set up a model in which every X number of seconds a "truck" arrives and if the delay block contains less than a specified capacity of elements, the inject function is called to refill the block. This sort of works, but is seems that the agents are flowing through the delay block's out port and thus do not count toward its capacity (that makes sense to me...) resulting in my source blocks continuing to create agents when the system isn't ready for them. My delay block is followed by a "move by transporter" block which seems to be getting all of the delay blocks outputs immediately. There are only two transporters in my model and I am not sure why more than two agents can be accepted by the transporter block at a time. I set my transporter fleet to have a capacity of 2 but that did not solve the problem.
Any advice would be helpful! Perhaps a different approach is needed. My goal is to have an essentially unlimited pool of parts at the inlet of the factory, but only create agents when the downstream processes are able to pull them in. Thanks in advance!
Welcome to SOF :)
Best use a "Wait" block here:
Let your trucks dump stuff into "Wait" whenever they arrive. Your downstream block can now pull them when they are ready using myWaitBlock.free(someAgent for as many agents as they want to pull from it.
Similarly, you can use a Delay with infinite capacity and set its type to "Until stopDelay() is called". Then similarly as the "Wait" block, you call myDelayBlock.stopDelay(someAgent) when you want.
Another option: Use a hold-block in front of a normal (infinite) queue and unblock it when ready: myHoldBlock.unBlock(numToLetThrough) --> probably the easiest
PS: Please also check how to ask good questions here on SOF, yours is very long, much easier to understand with some screenshots :) --> https://stackoverflow.com/help/how-to-ask
I'm new to Anylogic, and I was wondering if it's possible to have two queues go into one delay block. I'm trying to simulate products coming from 2 separate welding robots that then go into a sandblasting (delay block) installation. This installation can either blast 3 products from one robot or 1 from the other robot.
Maybe it's also possible to have one delay process be blocked as long as the other one is working, and then unblock it as soon as the other one is finished?
Here's a picture of the process.
So this is one way of doing it... I added hold blocks after each queue... one of the hold blocks is initially blocked.
I added a button to toggle the state of the hold block:
hold.toggleBlock();
hold1.toggleBlock();
This is the basic structure... of course the way you block/unblock the holds is up to you.