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GPSTracker

Use a Raspberry Pi with a GPS receiver and a pressure sensor. Tracking data from this setup and other sources can be visualised using Leaflet.js and several plugins.

GPS tracking

The code for GPS tracking using a Raspberry Pi will follow later. It is assumed that you are using Raspbian (Lite version) as operating system on your Raspberry Pi.

Setup and requirements

sudo apt-get install python3-rpi.gpio python3-redis redis-server gpsd
python3-pip git python3-numpy python3-smbus  # optional: chrony gpsd-clients
sudo pip3 install git+https://github.com/inmcm/micropyGPS.git
sudo pip3 install gps3 PyGeodesy fastapi uvicorn aiofiles geojson
git clone https://github.com/seandepagnier/RTIMULib2.git
cd RTIMULib2/Linux/python
python3 setup.py build
sudo python3 setup.py install

sudo cp etc/systemd/system/button_shutdown.service /etc/systemd/system/
chmod +x /home/pi/GPSTracker/gps_tracker/button_shutdown.py
sudo systemctl enable button_shutdown.service

sudo cp etc/systemd/system/bmp280poller.service /etc/systemd/system/
chmod +x /home/pi/GPSTracker/gps_tracker/bmp280_poller.py
sudo systemctl enable bmp280poller.service

sudo cp etc/systemd/system/imupoller.service /etc/systemd/system/
chmod +x /home/pi/GPSTracker/gps_tracker/imu_poller.py
sudo systemctl enable imupoller.service

sudo cp etc/systemd/system/gpspoller.service /etc/systemd/system/
chmod +x /home/pi/GPSTracker/gps_tracker/gps3_poller.py
sudo systemctl enable gpspoller.service

sudo cp etc/systemd/system/gps_baro_merge.service /etc/systemd/system/
chmod +x /home/pi/GPSTracker/gps_tracker/gps_baro_merge.py
sudo systemctl enable gps_baro_merge.service

sudo cp etc/systemd/system/pressurelogger.service /etc/systemd/system/
chmod +x /home/pi/GPSTracker/gps_tracker/pressure_logger.py
sudo systemctl enable pressurelogger.service

Download egm2008-1 as ZIP file from one of the locations listed at https://geographiclib.sourceforge.io/1.18/geoid.html and put egm2008-1.pgm in /home/pi/egm2008/ .

Data transfer to web page (optional)

sudo cp etc/systemd/system/transfer_gps_data.service /etc/systemd/system/
chmod +x /home/pi/GPSTracker/gps_tracker/transfer_data.py
sudo systemctl enable transfer_gps_data.service

Local web API (optional)

sudo cp etc/systemd/system/gps_tracker_api.service /etc/systemd/system/
sudo systemctl enable gps_tracker_api.service

You may access the API via [ip or hostname]:8080/docs .

GPS track visualisation

Different data sources are visualised on https://jaluebbe.github.io/GPSTracker/ . The artificial data was created using geojson.io. The real data is taken from a Raspberry Pi equipped with GPS and barometer. The Airbus tree is taken from the sample data supplied with https://github.com/xoolive/traffic . Elevation data was determined using the method published in https://github.com/jaluebbe/HeightMap .