This a documentation for the Python Reference Implementation of fml40 library by Kompetenzzentrum Wald und Holz 4.0 (KWH4.0).
The documentation is composed of some preliminaries for installation, a quick start and the reference implementation package.
We have implemented a permanent Digital Twin which runs in our internal server. In order to communicate with it, you can use the `hmi.py` in the folder `demo`
With the fml40-python-lib, we have developed a Digital Twin, which is modeled based on the language FML40 and runs permanent. The Digital Twin is implemented using fog approach, which means it is composed of the part of edge DT, which lives in our internal server, and the part of cloud DT, which runs at the S³I Repository. The S³I Interface is enabled in the DT. To communicate with the DT, we provided a python script named `hmi.py` in the folder `demo`. Just run the hmi.py to speak with the DT after installing the corresponding python virtual environment. This documentation introduces the main features of the Digital Twin and JSON entries in the S³I Directory and Repository.
With the fml40-python-lib, we have developed a Digital Twin, which is modeled based on the language FML40 and runs permanent. The Digital Twin is implemented using fog approach, which means it is composed of the part of edge DT, which lives in our internal server, and the part of cloud DT, which runs at the S³I Repository. The S³I Interface is enabled in the DT. To communicate with the DT, we provided a python script named `hmi.py` in the folder `demo`. Please feel free to contact with us in order to get the credentials file for the HMI and then just run the hmi.py to communicate with the DT after installing the corresponding python virtual environment. This documentation introduces the main features of the Digital Twin and JSON entries in the S³I Directory and Repository.
Reference implementation of the forest modelling language 4.0 (fml 4.0) which is explained in a [KWH 4.0 white paper](https://www.kwh40.de/wp-content/uploads/2020/03/KWH40-Standpunkt-fml40-Version-1.0.pdf).
To use the fml40 reference implementation package in your own project you can install it using the latest [wheel](https://git.rwth-aachen.de/kwh40/fml40-reference-implementation/-/jobs/artifacts/master/raw/public/ml-0.1-py3-none-any.whl?job=wheel).
To install this wheel, go to the respective directory or switch to your designated virtual environment and install the .whl file, just run pip install https://git.rwth-aachen.de/kwh40/fml40-reference-implementation/-/jobs/artifacts/master/raw/public/ml-0.1-py3-none-any.whl?job=wheel
Features
--------
- launching digital twins in persistent mode via `fml40s.py`. You need to register a thing identity for your Digital Twin via [S³I Config REST API](https://config.s3i.vswf.dev/apidoc)
- extending the capabilities with user defined digital twins. We provide an example in [Jupyter Notebook](https://mybinder.org/v2/gh/kwh40/notebooks/master), refer to notebooks `08a` and `08b`.
Usage
-----
A digital twin can be launched in persistent mode by executing
```
python fml40s.py launch <CONFIG_FILE>
```
all the config files must be located in the folder `configs`.
For more options call just run
```
python fml40s.py -h
```
Config files
------------
A valid configuration consists of exactly one json object. Mandatory fields of the json object are
- thingId
- policyId and
- attributes
MyDigitalTwin.json:
``` example
{
"thingId": "s3i:id",
"policyId": "s3i:id",
"attributes": {
"class": "ml40::Thing",
"name": "my digital twin",
"roles": [
{
"class": "fml40::Harvester"
}
],
"features": [
{
"class": "fml40::ProvidesProductionData"
},
{
"class": "ml40::Location",
"longitude": 5.03424,
"latitude": 52.52345
}
]
}
}
```
Structure
---------
### Configs
This folder contains example configuration files in json format for some digital twins.
### ml
This directory includes the implementations of the fml40 python reference implementation as described in the fml40 white paper.
### demo
Example of creating and launching a harvester. Additionally, a hmi is created to communicate with the harvester using S³I-B protocol.
### logs
is composed of the logging files of the created digital twins.
### tests
contains all test scripts (currently in development)
