Developed under Python 3.8: Download
Python must be on system PATH for the script to work automatically
From the installer:
After installation:
Double click on start.bat
This will launch pip to install all required libraries (requirements.txt).
Once all dependencies are downloaded it will start the program on its own.
launch bash start.sh from the terminal
All settings are stored in settings.json
TRASMITTED_POWER: Power transmitted by the beacon DEFAULT -4 (dBm)
COUPLING_FACTOR, WAVE_FACTOR: Respectively the values in dB in free path loss calculations given by the antenna coupling and the signal frequency DEFAULT: 1, 40
PATH_LOSS_PERIM: Wall path loss in dB from perimetral walls (thicker) DEFAULT: -14 (dB)
PATH_LOSS_INTERNAL: Wall path loss in dB from internal walls (thinner) DEFAULT: -3 (dB)
NOISE: Noise values contraints for every antenna measurement. The noise is calculated with an exponential distribution between given NOISE setting values DEFAULT: [-30, 0] (dB)
THRESHOLD: Power value that marks when an antenna signal is too far to be worth collecting DEFAULT: -95 (dB)
PACKET_LOSS: Probability to lose an antenna measurement at a given time. DEFAULT: 0.1 (10%)
DELAY: Delay between simulations DEFAULT: 0.3 (seconds)
SIM_WINDOW: Number of simulations required to estimate the median coordinates. DEFAULT: 5
Blue circles represent antennas which signal is actually received at a given time
The yellow circle represents the estimated point using all data from the antennas
The light blue circle represents the estimated location using median on the last SIM_WINDOW simulations (last SIM_WINDOW yellow circles)
An orange circle is shown on the antenna that gives the strongest signal at a given instance of the simulation