Fall Detection Sensor

Overview:

This project utilizes an accelerometer, gyroscope, and barometer to detect falling.

Description:

We wanted to replicate one of the functionalities of the Apple Watch: the Apple watch can detect a hard fall; if you are not well enough to disable the alert comes up on the screen, it automatically calls emergency services and notifies your emergency contacts. Our goal was to make a simplified version with a buzzer as an indicator of falling being successfully detected. 

Features:

• Compute: 

  • • Utilize microcontroller to process signals coming in from various sensors

• Power: 

  • • • Replaceable coin cells at 3V; stepping up from 3V to 3.3V

• Sensing: 

  • • Accelerometer -> detect unusual magnitudes of acceleration

    • Gyroscope -> verify direction of acceleration

    • Barometer -> additional sensor to reduce false positives; measures change in pressure to ensure the direction of acceleration is downwards

• Actuation:

  • • Buzzer -> indicates whether or not falling is detected