ViMo: Multiperson Vital Sign Monitoring Using Commodity Millimeter-Wave Radio

The continuous development of 802.11ad technology provides new opportunities in wireless sensing. In this work, we propose ViMo, a calibration-free remote vital sign monitoring system that can detect stationary/nonstationary users and estimate the respiration rates (RRs) as well as heart rates (HRs)...

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Published inIEEE internet of things journal Vol. 8; no. 3; pp. 1294 - 1307
Main Authors Wang, Fengyu, Zhang, Feng, Wu, Chenshu, Wang, Beibei, Liu, K. J. Ray
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 01.02.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Calibration
Dynamic programming
Estimation
Heart beat
Heart rate
Heart rate (HR) estimation
Human motion
Impulse response
Millimeter waves
Monitoring
Noise measurement
Object recognition
Remote monitoring
Remote sensing
Respiration
respiration signal elimination
smoothing spline
Static objects
Telemedicine
Wireless communication
Wireless fidelity
wireless sensing
Wireless sensor networks
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Abstract The continuous development of 802.11ad technology provides new opportunities in wireless sensing. In this work, we propose ViMo, a calibration-free remote vital sign monitoring system that can detect stationary/nonstationary users and estimate the respiration rates (RRs) as well as heart rates (HRs) built upon a commercial 60-GHz WiFi. The design of ViMo consists of two key components. First, we design an adaptive object detector that can identify static objects, stationary human subjects, and human in motion without any calibration. Second, we devise a robust HR estimator, which eliminates the respiration signal from the phase of the channel impulse response (CIR) to remove the interference of the harmonics from breathing and adopts dynamic programming (DP) to resist the random measurement noise. The influence of different settings, including the distance between a human and the device, user orientation and incidental angle, blockage material, body movement, and conditions of multiuser separation is investigated by extensive experiments. The experimental results show that ViMo monitors user's vital signs accurately, with a median error of 0.19 and 0.92 breaths per minute (BPM), respectively, for RR and HR estimation.
AbstractList The continuous development of 802.11ad technology provides new opportunities in wireless sensing. In this work, we propose ViMo, a calibration-free remote vital sign monitoring system that can detect stationary/nonstationary users and estimate the respiration rates (RRs) as well as heart rates (HRs) built upon a commercial 60-GHz WiFi. The design of ViMo consists of two key components. First, we design an adaptive object detector that can identify static objects, stationary human subjects, and human in motion without any calibration. Second, we devise a robust HR estimator, which eliminates the respiration signal from the phase of the channel impulse response (CIR) to remove the interference of the harmonics from breathing and adopts dynamic programming (DP) to resist the random measurement noise. The influence of different settings, including the distance between a human and the device, user orientation and incidental angle, blockage material, body movement, and conditions of multiuser separation is investigated by extensive experiments. The experimental results show that ViMo monitors user’s vital signs accurately, with a median error of 0.19 and 0.92 breaths per minute (BPM), respectively, for RR and HR estimation.
Author Wang, Fengyu
Liu, K. J. Ray
Wu, Chenshu
Wang, Beibei
Zhang, Feng
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Snippet The continuous development of 802.11ad technology provides new opportunities in wireless sensing. In this work, we propose ViMo, a calibration-free remote...
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SubjectTerms Calibration
Dynamic programming
Estimation
Heart beat
Heart rate
Heart rate (HR) estimation
Human motion
Impulse response
Millimeter waves
Monitoring
Noise measurement
Object recognition
Remote monitoring
Remote sensing
Respiration
respiration signal elimination
smoothing spline
Static objects
Telemedicine
Wireless communication
Wireless fidelity
wireless sensing
Wireless sensor networks
Title ViMo: Multiperson Vital Sign Monitoring Using Commodity Millimeter-Wave Radio
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