jonpas / SensExp

Sensor experiment on Android at Ubiquitous Computing (slo. Vseprisotno Računalništvo)

FERI-SensExp

Simple experimental application for gathering data for later analysis in a sensor experiment on Android at Ubiquitous Computing (slo. Vseprisotno Računalništvo).

Goal of the experiment is to prove or disprove the ability to accurately sense a shot has been taken with a gas airsoft pistol using a regular Android phone and its on-board sensors (microphone and linear accelerometer).

Additionally it publishes live capture data via MQTT.

Usage

• Run application
• Set experiment name (optional)
• Toggle Capture switch and take a shot when it displays "Fire!"
• Toggle Capture switch when enough data was captured
• Experiment data saves to /storage/emulated/0/Android/data/com.jonpas.sensexp/files/
• Copy captured data from /storage/emulated/0/Android/data/com.jonpas.sensexp/files to analysis folder
• Analyse by following the analysis instructions below

Setup

Requirements:

• Android Studio

Analysis

Simple Python script to plot audio and linear accelerometer data for further analysis (analysis folder).

Usage

Setup:

• $ python -m venv venv (virtual environment)
• $ source venv/bin/activate
• $ pip install -r requirements.txt ($ pip freeze > requirements.txt to update dependencies)

Run:

• $ python plot_experiment.py <name>.3gp <name>.csv

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Stand By	Countdown	Should Fire