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Contactless Breathing Monitoring at Home and in the Hospital: Protocol for a Low-Cost Frequency-Modulated
Arnav Hari1, Ravishankar Kumar1, Brijesh Kumbhani1
1Department of Electrical Engineering, Indian Institute of Technology Ropar, Rupnagar, India.
JMIR Research Protocols
|February 25, 2025
Summary
This study developed a contactless radar system to monitor infant breathing, offering a noninvasive alternative to traditional sensors. The technology accurately tracks breathing rate and patterns, crucial for neonatal care.
Area of Science:
- Biomedical Engineering
- Neonatal Care Technology
- Radar Signal Processing
Background:
- Neonates require continuous vital sign monitoring due to immature systems.
- Conventional sensors can irritate sensitive newborn skin, causing discomfort.
- Contactless monitoring is essential for nonintrusive infant care.
Purpose of the Study:
- Develop a contactless frequency-modulated continuous-wave (FMCW) radar system for infant breathing monitoring.
- Provide a noninvasive, nonintrusive alternative to sensor-based methods.
- Improve neonatal and infant health outcomes through accurate breathing analysis.
Main Methods:
- Utilized FMCW radar to analyze signal travel time, correlating with breathing-induced distance variations.
- Employed a multi-antenna system for enhanced sensitivity in monitoring neonates.
- Integrated radar device with conventional monitors for data comparison and signal processing.
Main Results:
- A working proof-of-concept for the contactless radar device was verified.
- Initial study implementation began in December 2024.
- Results are anticipated for publication in Q1 2025.
Conclusions:
- The contactless FMCW radar system reliably estimates breathing rate and patterns.
- The system provides values closely aligned with conventional monitoring devices.
- Offers a seamless monitoring solution for hospital and home use in newborns and premature infants.
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