Grandma Velocity Tracker (aka GraVT) is a fall-detection Android app built using Java. GraVT detects falls and send alerts to emergency contacts. Download this app on your and your love ones' phones.
Development is currently in progress.
The app detects 3 major stages in sequence:
- Fall - When close-to-free-fall acceleration is detected.
- Impact - Sudden spike in acceleration above normal.
- Inactivity - Small changes in acceleration for a specified period of time.
Each stage can only be triggered if the last stage has been triggered. There is a small cooldown period implemented at the end of each stage.
