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Accepted for/Published in: JMIR Research Protocols

Date Submitted: Apr 15, 2024
Date Accepted: Jul 18, 2024

The final, peer-reviewed published version of this preprint can be found here:

Contactless Breathing Monitoring at Home and in the Hospital: Protocol for a Low-Cost Frequency-Modulated Continuous-Wave Radar-Based Device

Hari A, Kumar R, Kumbhani B, Darshi S, Agarwal S, Sahambi JS, Jain S, Chawla D

Contactless Breathing Monitoring at Home and in the Hospital: Protocol for a Low-Cost Frequency-Modulated Continuous-Wave Radar-Based Device

JMIR Res Protoc 2025;14:e59532

DOI: 10.2196/59532

PMID: 39999437

PMCID: 11897680

Breathing Rate Monitoring at Homes and Hospitals: Proposal for Radar based Non-contact Device

  • Arnav Hari; 
  • Ravishankar Kumar; 
  • Brijesh Kumbhani; 
  • Sam Darshi; 
  • Satyam Agarwal; 
  • Jyotindra Singh Sahambi; 
  • Suksham Jain; 
  • Deepak Chawla

ABSTRACT

Background:

Contactless monitoring of vital signs, especially the breathing of the child in the hospital, is one of the works that has been done on a priority basis because their organs and the immune system are immature. So, continuous monitoring of their vital signs with a sensor that is directly attached to their body is not possible because it irritates the body. A contactless FMCW radar-based method is devised which wirelessly monitors the breathing rate and pattern of a child in the hospital or at home. This device can be added with signal processing capability to process the breathing data and analyze the apneatic condition arising due to irregular breathing patterns.

Methods:

We will design a frequency-modulated continuous wave (FMCW) radar-based device to monitor and measure the breathing of a human being without any contact with the person being monitored. The radar transmits a signal toward the human body and the received signal is analyzed for the time taken to travel from the human body to the receiving antenna. This time is proportional to the distance between the radar and the human body. The breathing pattern is recognized as a slight and periodic variation in distance between the radar and the human body. We will use this concept with multiple antenna systems to monitor the breathing of neonates with improved sensitivity.

Conclusions:

The contactless FMCW Radar can provide reliable breathing rate and pattern estimation, which is close to the reference cabled device values most of the time. This model provides a seamless breathing monitoring system to be used in hospitals as well as in homes for newborns as well as premature babies until they are fully healthy and fit.


 Citation

Please cite as:

Hari A, Kumar R, Kumbhani B, Darshi S, Agarwal S, Sahambi JS, Jain S, Chawla D

Contactless Breathing Monitoring at Home and in the Hospital: Protocol for a Low-Cost Frequency-Modulated Continuous-Wave Radar-Based Device

JMIR Res Protoc 2025;14:e59532

DOI: 10.2196/59532

PMID: 39999437

PMCID: 11897680

Per the author's request the PDF is not available.

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