Problem Statement

Our goal is to create an alarm system that can alert a 3rd party via SMS messaging to aid when in a hypoglycemic episode. Using an accelerometer to measure the movements in the muscles in the hand, you can detect the frequency of movement that can indicate shivering which is a symptom of hypoglycemia. As of 2020, the technology to detect hypoglycemia is both expensive and not very reliable, or it is invasive. Our system intends to be a non-invasive, alternative to the current commercially available products. The currently available solutions use sensors based off of temperature and moisture, however we want to use the patients shivering as our trigger.

System Specifications

  • Sense in range 8-12 Hz
  • Have an alarm go off when threshold met for 12 seconds
  • Send a message to someone if the event is occurring and alarm has not been disabled within 24 seconds
  • Wearable and comfortable wrist strap
  • Our SDP budget is the limit to the price of our solution ($500)
  • Multiple day battery life

Diagrams

Overall Design

Overall Design

Our overall design, as of 3/19/2021.

Signal Processing

Signal Processing

Our signal processing, as of 3/19/2021.

Hardware Diagram

Hardware Design

Our hardware design, as of 3/19/2021.

Design Review Documents

Final Report

Final Report

Tuesday, May 4, 2021

Our Final Report.

FPR Slides

FPR Slides

Friday, April 23, 2021

Our Final Project Review presentation.

CDR Slides

CDR Slides

Thursday, April 1, 2021

Our Comprehensive Design Review presentation.

MDR Slides

MDR Slides

Thursday, November 19, 2020

Our Midway Design Review presentation.

PDR Slides

PDR Slides

Tuesday, September 22, 2020

Our Preliminary Design Review presentation.

Demo Video




In this video, we cause shivering necessary for testing our system with a bowl of very cold water. On the (upside down) screen, the output in the console that appears represents the highest magnitude frequency present from the accelerometer reading.