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Breathing Sensor for Remote Medicine

CSEF · 2023 Electronics & Electromagnetics Third Award

Bajdechi Diana · 8

Overview

Breathing is very important for someone’s health, and to detect respiratory diseases like pneumonia or COVID-19. Measuring how a person breathes is currently done accurately only in hospitals or labs. Remote medicine needs accurate and portable sensors to measure breathing of patients in their own home. The goal of this project is to build an accurate, small, and low-power sensor for measuring breathing rhythm, and write software to calculate breathing cycles. Using two Inertial Measurement Units (IMUs) to sense the movement of the rib cage even while the subject is moving and a microcontroller to process and display the data, a portable breathing sensor was developed. The smart sensor collects and processes IMU data to calculate and display min/average/max duration of the breathing cycle over 2 minutes. The microcontroller collects data in 12 windows of 10 seconds each, detecting the first breathing cycle in each window. The sensor was used to capture and analyze the breathing of two healthy subjects standing still, turning, and walking. The data showed that analyzing breathing of subjects in motion requires more post-processing but it’s possible when using two IMUs placed close to each other on the rib cage. The relative rotation of the two IMUs is sensitive only to breathing and not to other movements. An error rate below 1 missed breathing cycle out of 12 was achieved by the device in all trials. This portable device for breathing analysis can be used in remote medicine and monitoring.

Source coverage

This record comes from a published award list, not a complete project archive. Its abstract comes from CSEF's public project showcase as archived by the Internet Archive before judging (https://web.archive.org/web/20230401224130/https://ca-csef.zfairs.com/showcase/ShowcaseInfo?f=838e60b7-ea75-46e8-865c-fde4864244b3); the version presented may differ.

Awards (1)

Competition history

  • CSEF 2023 Electronics & Electromagnetics · Entry J1026

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