I've a question, in my model I want to add battery information to the transporter fleet. Think about when the battery level is below 30% the AGV moves after finishing a task to the closest charging station and stays there until the battery level is above a certain level.
So I was thinking about adding a parameter with the batterylevel to the agent type of the transport fleet.
But I have no clue how to create battery management further.
Creating an event, which decrease the battery level every second based on the state of the AGV agent?
But this gives me 4 questions:
How can you check the battery level after a transporter is released?
How do you dynamically decrease the transporter fleet size based on the amount of charging AGVs.
How do you let the AGV move to the closest charging station.
Is there anywhere an example model for this problem?
Thanks.
Your answer is a bit philosophical for SOF (and multiple questions in one...) but here goes...
Yes an event that runs every second inside an AGV is good, but it might make your model slow...
Alternatively use the on transporter state change to save the start and end times of travel and then use that to calculate the travel time, or distance, and use that to deplete the battery.
You can check the battery level in the on release code for the transporter blocks
You need to have a variable inside transporters that set them to need charging. And then in the seize transporter logic you have a custom selection to not choose AGVs that need charging
When an AGV requires charging - that you identified in item 1, you create a new task that will only size that transporter and make it move to what ever location you calculated to be the closest charging station. You will control which transporter gets selected by this task using the custom seize action same as in item 2. This will be a separate flow chart where you create this logic to make transporters go for a charge.
Could not find a specific one about charging bu as you know there are lots of other examples about AGV
Related
I would like to use transporters in my model in various places (tugboats, forklifts, reach stackers, trucks, etc.). However, my model paths and animation can't be drawn to scale, detailed explanation in brackets below.
Is there a way I can move the transporter from one node to another based on travel time (similar to what a movable resource can do), rather than speed and distance?
The "Move By Transporter" block does not seem to allow this and I have not been able to find a solution online. Thank you for your help.
(Explanation on why I can't draw to scale: firstly, some destination locations (storage areas, etc.) are not known yet and will just be represented by a travel delay to get there, secondly, different areas of the model will be drawn to different scales, i.e. some network paths will represent a multiple kilometers and some network paths will only represent a few hundred meters, etc.)
You can draw the paths to suit your animation and then simply set the speed of the transporter that gets seized to a speed so that the duration of the movement matches what you need it to be, and when the transporter gets released set the speed back to normal
I have a warehouse model where "Picker" agents move along the Y-axis to reach the front of a "picking slot" agent.
I would like to make it so that upon arrival in front of the picking slot, the Picker agents face the picking slot.
I am aware of the "Set rotation upon arrival" feature of the MoveTo blocks, but I am having trouble making sense out of it. What sort of value should I input here?
Is it possible to dynamically define the rotation according the the agents' relative location to each other? If so, how should I go about it? Some of the slots are on the left of the picker, and others on the right.
Thank you.
Please have a look at the Wholesale Warehouse example in the sample models (help section of AnyLogic). There they use agent.agent_image.setRotation(-PI) and then turn it into initial position with agent_image.setRotation(0) You can use this dynamically and with if conditions in your blocks.
I built up a shopfloor where material flow is realized by Transporters (AGV / AMR) with free space navigation. I am looking for a possibility to observe traffic at certain spots (e.g. work stations, storage areas) or even on the whole shopfloor so I can compare different scenarios of the material flow and supply strategy of the working station with a view on the traffic. I tried out the Density Map but since it observes the whole layout which is quite big the values get too low for the scale quite fast so it isn't performing the way I want it to. Is there a way so set up like a "area density map" so I can just observe a defined rectangle or another functionality which could help me here?
Happy about all ideas! :-)
You can use normal Rectangular Node elements and trigger "on enter" code to count drive-throughs or similar, as below.
Just make sure to set the capacity to infinity so normal traffic flow is not interrupted :)
I am modeling a warehouse yard where trucks arrive, get loaded/offloaded and leave the site. The complexity arises when modeling the drop trailers. Those vehicles consist of two parts: tractor and trailer. Tractor and trailer enter the yard as one entity and move to the parking lot. There, the tractor drops the trailer (turquoise colored rectangles in the picture below) and then then leaves the yard. After some time another tractor (pink colored in the picture below) comes to pick up one of those trailers. When there is no free space in the parking lot, model throws an error, because I use carMoveTo block to send it to the parkingLot. Therefore it requires additional space to move the tractor. How can I avoid this issue? In fact, I do not want that pink tractor to seize a free parking lot, but to pick up one of those trailers. I tried suppressing the error by using "on the way not found" option in the carMoveTo block, but I need to get a close-to-reality animation of the yard.
I would not advise mixing the road traffic library blocks with the Process Modelling Library (PML) Blocks, unless you really need to.
You can get near-perfect animation by making use of a network-type model and just the PML blocks. You will start by replacing your Car Move To block with just a MoveTo block
You can check the WholeSale Warehouse example in AnyLogic.
There they make use of a network diagram and PML blocks to simulation all the relative parking movements of trucks and trailers.
You can do something similar by creating the correct network and node points that indicate how a truck must move when it is parking a trailer and when it is picking up a trailer.
If this solution is not scalable and you cant draw lines, you can always simply just specify the X,Y, Z coordinates.
You might then need multiple MoveTo blocks for the entire movement or you can create some sort of loop where you give a truck a list of locations to move to, the truck will go through the loop and simply execute moving to the next location in the list, until it is done and then continue with the flow chart
I am running a pedestrian simulation in Anylogic and want greater granularity in the agent position information that I get at the end of my model. Currently, I have it set up to show a heat map of traffic density, but I would like to trace the actual position of each agent through its time in the model, like a line or trail.
model visualization at the end of a simulation
[1]: https://i.stack.imgur.com/RwCVo.png
Add a cyclic event into your Pedestrian agent type (you cannot use the default pedestrians but must create your own agent type).
Then, every second (or whatever resolution you need), write the pedestrian coordinates (getX and getY) into a dbase table along with its index.
Then, you can do any post-processing that you need.
PS: typically, this is not really necessary, so make sure you really need this ;)