MNS Project

Breathing Volume Estimation project

Project Description

In this project, we propose for the first time an autonomous system, called WiSpiro, that continuously monitors a person’s breathing volume with high resolution during sleep from afar. WiSpiro relies on a phase-motion demodulation algorithm that reconstructs minute chest and abdominal movements by analyzing the subtle phase changes that the movements cause to the continuous wave signal sent by a 2.4 GHz directional radio. These movements are mapped to breathing volume, where the mapping relationship is obtained via a short training process. To cope with body movement, the system tracks the large-scale movements and posture changes of the person, and moves its transmitting antenna accordingly to a proper location in order to maintain its beam to specific areas on the frontal part of the person’s body. It also incorporates interpolation mechanisms to account for possible inaccuracy of our posture detection technique and the minor movement of the person’s body.

Video Demo

The Team

• Tam Vu (Principle Investigator)
• Min-Hyung Choi(Principle Investigator)
• Ann Halbower(Principle Investigator)
• VP Nguyen (Lead Student)
• Shane Transue

Publications

• Respiratory Volume Monitoring from Afar Using Wireless Signals
  ATS International Conference 2017 - The American Thoracic Society International Conference, Washington DC, USA, May 2017.
  Phuc Nguyen, Shane Transue, Ann Halbower, Min-Hyung Choi, and Tam Vu
  

• WikiSpiro: Non-contact Respiration Volume Monitoring during Sleep
  ACM MobiCom-S3 2016 - The ACM International Conference on Mobile Computing and Networking.
  Wireless of the Students, by the Students, and for the Students Workshop, NewYork, USA, October 2016.
  Phuc Nguyen, Shane Transue, Ann Halbower, Min-Hyung Choi, and Tam Vu
  (Best Paper Award)

• Continuous and Fine-grained Breathing Volume Monitoring from Afar Using Wireless Signals, [Video demo]
  IEEE INFOCOM 2016 - The IEEE International Conference on Computer Communications, San Francisco, CA, USA, April 2016.
  (300 out of 1644 submissions, acceptance ratio: 18.25%).
  Phuc Nguyen, Xinyu Zhang, Ann Halbower, and Tam Vu
  

• Continuous and Fine-grained Respiration Volume Monitoring Using Continuous Wave Radar, [Video demo]
  ACM MobiCom 2015 (Poster Section) - The ACM Annual International Conference on Mobile Computing and Networking, Paris, France, July 2015.
  Phuc Nguyen, Xinyu Zhang, Ann Halbower and Tam Vu
  

Related Pictures

SYSTEM OVERVIEW

System Overview

29 June, 2016

TESTING AREA

Testing at a soccer field

29 June, 2016

TESTING AREA

Testing inside Campus

29 June, 2016

EXAMPLE DATA

Example data

29 June, 2016