Nmr-VSM: Non-Touch Motion-Robust Vital Sign Monitoring via UWB Radar Based on Deep Learning

In recent years, biometric radar has gained increasing attention in the field of non-touch vital sign monitoring due to its high accuracy and strong ability to detect fine-grained movements. However, most current research on biometric radar can only achieve heart rate or respiration rate monitoring...

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Main Authors: Zhonghang Yuan, Shuaibing Lu, Yi He, Xuetao Liu, Juan Fang
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/14/7/1479
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author Zhonghang Yuan
Shuaibing Lu
Yi He
Xuetao Liu
Juan Fang
author_facet Zhonghang Yuan
Shuaibing Lu
Yi He
Xuetao Liu
Juan Fang
author_sort Zhonghang Yuan
collection DOAJ
description In recent years, biometric radar has gained increasing attention in the field of non-touch vital sign monitoring due to its high accuracy and strong ability to detect fine-grained movements. However, most current research on biometric radar can only achieve heart rate or respiration rate monitoring in static environments, which have strict monitoring requirements and single monitoring parameters. Moreover, most studies have not applied the collected data despite their significant potential for applications. In this paper, we introduce a non-touch motion-robust vital sign monitoring system via ultra-wideband (UWB) radar based on deep learning. Nmr-VSM not only enables multi-dimensional vital sign monitoring under human motion environments but also implements cardiac anomaly detection. The design of Nmr-VSM includes three key components. Firstly, we design a UWB radar that can perform multi-dimensional vital sign monitoring, including heart rate, respiratory rate, distance, and motion status. Secondly, we collect real experimental data and analyze the impact of eight factors, such as motion status and distance, on heart rate monitoring. We then propose a deep neural network (DNN)-based heart rate data correction model that achieves high robustness in motion environments. Finally, we model the heart rate variability (HRV) of the human body and propose a convolutional neural network (CNN)-based anomaly detection model that achieves low-latency detection of heart diseases, such as ventricular tachycardia and ventricular fibrillation. Experimental results in a real environment demonstrate that Nmr-VSM can not only accurately monitor heart rate but also achieve anomaly detection with low latency.
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spelling doaj.art-6dad4be0f3f74739b75445aae14afac92023-11-18T20:34:01ZengMDPI AGMicromachines2072-666X2023-07-01147147910.3390/mi14071479Nmr-VSM: Non-Touch Motion-Robust Vital Sign Monitoring via UWB Radar Based on Deep LearningZhonghang Yuan0Shuaibing Lu1Yi He2Xuetao Liu3Juan Fang4Faculty of Information Technology, Beijing University of Technology, Beijing 100124, ChinaFaculty of Information Technology, Beijing University of Technology, Beijing 100124, ChinaSchool of Software Engineering, Beijing Jiaotong University, Beijing 100091, ChinaFaculty of Information Technology, Beijing University of Technology, Beijing 100124, ChinaFaculty of Information Technology, Beijing University of Technology, Beijing 100124, ChinaIn recent years, biometric radar has gained increasing attention in the field of non-touch vital sign monitoring due to its high accuracy and strong ability to detect fine-grained movements. However, most current research on biometric radar can only achieve heart rate or respiration rate monitoring in static environments, which have strict monitoring requirements and single monitoring parameters. Moreover, most studies have not applied the collected data despite their significant potential for applications. In this paper, we introduce a non-touch motion-robust vital sign monitoring system via ultra-wideband (UWB) radar based on deep learning. Nmr-VSM not only enables multi-dimensional vital sign monitoring under human motion environments but also implements cardiac anomaly detection. The design of Nmr-VSM includes three key components. Firstly, we design a UWB radar that can perform multi-dimensional vital sign monitoring, including heart rate, respiratory rate, distance, and motion status. Secondly, we collect real experimental data and analyze the impact of eight factors, such as motion status and distance, on heart rate monitoring. We then propose a deep neural network (DNN)-based heart rate data correction model that achieves high robustness in motion environments. Finally, we model the heart rate variability (HRV) of the human body and propose a convolutional neural network (CNN)-based anomaly detection model that achieves low-latency detection of heart diseases, such as ventricular tachycardia and ventricular fibrillation. Experimental results in a real environment demonstrate that Nmr-VSM can not only accurately monitor heart rate but also achieve anomaly detection with low latency.https://www.mdpi.com/2072-666X/14/7/1479non-touch vital sign monitoringultra-wideband (UWB) radarmulti-dimensional vital signheart rate data correctionanomaly detection
spellingShingle Zhonghang Yuan
Shuaibing Lu
Yi He
Xuetao Liu
Juan Fang
Nmr-VSM: Non-Touch Motion-Robust Vital Sign Monitoring via UWB Radar Based on Deep Learning
Micromachines
non-touch vital sign monitoring
ultra-wideband (UWB) radar
multi-dimensional vital sign
heart rate data correction
anomaly detection
title Nmr-VSM: Non-Touch Motion-Robust Vital Sign Monitoring via UWB Radar Based on Deep Learning
title_full Nmr-VSM: Non-Touch Motion-Robust Vital Sign Monitoring via UWB Radar Based on Deep Learning
title_fullStr Nmr-VSM: Non-Touch Motion-Robust Vital Sign Monitoring via UWB Radar Based on Deep Learning
title_full_unstemmed Nmr-VSM: Non-Touch Motion-Robust Vital Sign Monitoring via UWB Radar Based on Deep Learning
title_short Nmr-VSM: Non-Touch Motion-Robust Vital Sign Monitoring via UWB Radar Based on Deep Learning
title_sort nmr vsm non touch motion robust vital sign monitoring via uwb radar based on deep learning
topic non-touch vital sign monitoring
ultra-wideband (UWB) radar
multi-dimensional vital sign
heart rate data correction
anomaly detection
url https://www.mdpi.com/2072-666X/14/7/1479
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