Non-Contact Sensor for Long-Term Continuous Vital Signs Monitoring: A Review on Intelligent Phased-Array Doppler Sensor Design
It has been the dream of many scientists and engineers to realize a non-contact remote sensing system that can perform continuous, accurate and long-term monitoring of human vital signs as we have seen in many Sci-Fi movies. Having an intelligible sensor system that can measure and record key vital...
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doaj-1a1f120b8f824d39907c0f3cb68a73e02020-11-25T02:42:40ZengMDPI AGSensors1424-82202017-11-011711263210.3390/s17112632s17112632Non-Contact Sensor for Long-Term Continuous Vital Signs Monitoring: A Review on Intelligent Phased-Array Doppler Sensor DesignTravis Hall0Donald Y. C. Lie1Tam Q. Nguyen2Jill C. Mayeda3Paul E. Lie4Jerry Lopez5Ron E. Banister6Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79409-3102, USADepartment of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79409-3102, USADepartment of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79409-3102, USADepartment of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79409-3102, USATexas Tech University Health Sciences Center, Texas Tech University, Lubbock, TX 79430, USADepartment of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79409-3102, USATexas Tech University Health Sciences Center, Texas Tech University, Lubbock, TX 79430, USAIt has been the dream of many scientists and engineers to realize a non-contact remote sensing system that can perform continuous, accurate and long-term monitoring of human vital signs as we have seen in many Sci-Fi movies. Having an intelligible sensor system that can measure and record key vital signs (such as heart rates and respiration rates) remotely and continuously without touching the patients, for example, can be an invaluable tool for physicians who need to make rapid life-and-death decisions. Such a sensor system can also effectively help physicians and patients making better informed decisions when patients’ long-term vital signs data is available. Therefore, there has been a lot of research activities on developing a non-contact sensor system that can monitor a patient’s vital signs and quickly transmit the information to healthcare professionals. Doppler-based radio-frequency (RF) non-contact vital signs (NCVS) monitoring system are particularly attractive for long term vital signs monitoring because there are no wires, electrodes, wearable devices, nor any contact-based sensors involved so the subjects may not be even aware of the ubiquitous monitoring. In this paper, we will provide a brief review on some latest development on NCVS sensors and compare them against a few novel and intelligent phased-array Doppler-based RF NCVS biosensors we have built in our labs. Some of our NCVS sensor tests were performed within a clutter-free anechoic chamber to mitigate the environmental clutters, while most tests were conducted within the typical Herman-Miller type office cubicle setting to mimic a more practical monitoring environment. Additionally, we will show the measurement data to demonstrate the feasibility of long-term NCVS monitoring. The measured data strongly suggests that our latest phased array NCVS system should be able to perform long-term vital signs monitoring intelligently and robustly, especially for situations where the subject is sleeping without hectic movements nearby.https://www.mdpi.com/1424-8220/17/11/2632active antennabeam-steeringDoppler Radare-healthhomecarenoncontact vital signs monitoringphased arrayintelligent sensortelemedicinevital signs monitoringwireless assisted livingwireless acute care |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Travis Hall Donald Y. C. Lie Tam Q. Nguyen Jill C. Mayeda Paul E. Lie Jerry Lopez Ron E. Banister |
spellingShingle |
Travis Hall Donald Y. C. Lie Tam Q. Nguyen Jill C. Mayeda Paul E. Lie Jerry Lopez Ron E. Banister Non-Contact Sensor for Long-Term Continuous Vital Signs Monitoring: A Review on Intelligent Phased-Array Doppler Sensor Design Sensors active antenna beam-steering Doppler Radar e-health homecare noncontact vital signs monitoring phased array intelligent sensor telemedicine vital signs monitoring wireless assisted living wireless acute care |
author_facet |
Travis Hall Donald Y. C. Lie Tam Q. Nguyen Jill C. Mayeda Paul E. Lie Jerry Lopez Ron E. Banister |
author_sort |
Travis Hall |
title |
Non-Contact Sensor for Long-Term Continuous Vital Signs Monitoring: A Review on Intelligent Phased-Array Doppler Sensor Design |
title_short |
Non-Contact Sensor for Long-Term Continuous Vital Signs Monitoring: A Review on Intelligent Phased-Array Doppler Sensor Design |
title_full |
Non-Contact Sensor for Long-Term Continuous Vital Signs Monitoring: A Review on Intelligent Phased-Array Doppler Sensor Design |
title_fullStr |
Non-Contact Sensor for Long-Term Continuous Vital Signs Monitoring: A Review on Intelligent Phased-Array Doppler Sensor Design |
title_full_unstemmed |
Non-Contact Sensor for Long-Term Continuous Vital Signs Monitoring: A Review on Intelligent Phased-Array Doppler Sensor Design |
title_sort |
non-contact sensor for long-term continuous vital signs monitoring: a review on intelligent phased-array doppler sensor design |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2017-11-01 |
description |
It has been the dream of many scientists and engineers to realize a non-contact remote sensing system that can perform continuous, accurate and long-term monitoring of human vital signs as we have seen in many Sci-Fi movies. Having an intelligible sensor system that can measure and record key vital signs (such as heart rates and respiration rates) remotely and continuously without touching the patients, for example, can be an invaluable tool for physicians who need to make rapid life-and-death decisions. Such a sensor system can also effectively help physicians and patients making better informed decisions when patients’ long-term vital signs data is available. Therefore, there has been a lot of research activities on developing a non-contact sensor system that can monitor a patient’s vital signs and quickly transmit the information to healthcare professionals. Doppler-based radio-frequency (RF) non-contact vital signs (NCVS) monitoring system are particularly attractive for long term vital signs monitoring because there are no wires, electrodes, wearable devices, nor any contact-based sensors involved so the subjects may not be even aware of the ubiquitous monitoring. In this paper, we will provide a brief review on some latest development on NCVS sensors and compare them against a few novel and intelligent phased-array Doppler-based RF NCVS biosensors we have built in our labs. Some of our NCVS sensor tests were performed within a clutter-free anechoic chamber to mitigate the environmental clutters, while most tests were conducted within the typical Herman-Miller type office cubicle setting to mimic a more practical monitoring environment. Additionally, we will show the measurement data to demonstrate the feasibility of long-term NCVS monitoring. The measured data strongly suggests that our latest phased array NCVS system should be able to perform long-term vital signs monitoring intelligently and robustly, especially for situations where the subject is sleeping without hectic movements nearby. |
topic |
active antenna beam-steering Doppler Radar e-health homecare noncontact vital signs monitoring phased array intelligent sensor telemedicine vital signs monitoring wireless assisted living wireless acute care |
url |
https://www.mdpi.com/1424-8220/17/11/2632 |
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