Graphical interface for viewing data sent in real time by picosatellite flight computers or model rockets.
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GUI Ground station for CanSat or OBC’s
GUI code for a ground station for CanSats and/or OBCs where data from different sensors is displayed in real time. No sensors are needed to test it.
Table of Contents
- Support
- General information
- Liberias
- Linux Configuration
- Windows Settings
- How does it work?
- Sources
- License
Support
If you used this project or learned something, please share it or give it a star on github to continue making open source projects.
General information
The purpose of this project is to make a GUI in which the data transmitted by an OBC (on-board computer) or a CanSat is understandable at first glance through a text string on a serial port.
This project is strongly related to another rocket science and CanSat project. It is still in development.
Bugs
-
Most of the time the text elements disappear, I invite you to solve this.
-
Sometimes it can’t convert the first value of the list to int, but it solves itself by re-running it.
-
speed graph is under development, it grows to infinity.
Libraries
El proyecto se crea con:
- numpy==1.18.2
- PyQt5==5.14.2
- PyQt5-sip==12.7.2
- pyqtgraph==0.10.0
- pyserial==3.4
Linux configuration
In order to run it you have to open the terminal in the folder and type:
$ virtualenv env
$ fuente env/bin/activate
$ pip3 install -r requiments.txt
$ python3 main.py
If you don’t have the electronics you can still try it! When the terminal asks you to type a serial port, type anything and it will work, it will graph random data (but the text error remains).
Windows Configuration
Open CMD or PowerShell to the folder address and type the following commands:
> virutalenv env
> \env\Scripts\activate.bat
> pip install -r requeriments.txt
> python main.py
How does it work?
How do you take the samples?
Every 500ms it takes a sample, this number comes from the data rate the Arduino has, if you don’t have the Arduino and sensors the GUI still works, it plots random data. The loop is:
timer = pg.QtCore.QTimer()
timer.timeout.connect(update)
timer.start(500)
What values does it use?
The update() function updates the graphics and text of the interface. The first thing it does is get a list of the data to be updated, this list is annotated as a value_chain.
Then, inside update the specific update methods are executed for each element that depends on this list.
The values it receives are: 0. Registration time
- Relative height
- It is in free fall (0 or 1)
- Temperature
- Atmospheric pressure 5.Pitch
- Wheel 7.Yaw
- Acceleration in X
- Y axis acceleration
- Z-acceleration
How do you store the information?
Clicking the Start storage button calls a function of the data_base class that changes a state that determines whether the save method writes the data to the list. The same goes for the Stop storage button.
In this file the list called value_chain is stored in the same order by adding at the end the date that is recorded in the computer.
Sources
“If I have seen further than others, it is by standing on the shoulders of giants.” – Newton mocking Hooke’s back.
- Hrisko, J. (2018). Python Datalogger - Usando pySerial para leer la salida de datos en serie de Arduino.
- Sepúlveda, S. Reyes, P. Weinstein, A. (2015). Visualización de señales fisiológicas en tiempo real. doi: 10.25080/Majora-7b98e3ed-01c
- Golubev, P. (2018). Ejecutar pyqtgraph en tiempo real en PlotWidget GUI.
- Pythonspot.(n.d.). PyQt5.
- Sr. Tom. (2016). Calcular la velocidad en el acelerómetro.
- Selfert, K. Camacho, O. (2007). Implementar algoritmos de posicionamiento usando acelerómetros. Freescale Semiconductor.
- Muchas otras personas frías en el desbordamiento de la pila.
License
It’s MIT <3. (for now)
Developed by Daniel Alejandro Rodríguez Suárez, leader of the ATL research seedbed, linked to the LIDER research group of the District University.