2-D Localization, Angular Separation and Vital Signs Monitoring Using a SISO FMCW Radar for Smart Long-term Health Monitoring Environments

2021 ◽  
pp. 1-1
Author(s):  
Marco Mercuri ◽  
Giulia Sacco ◽  
Rainer Hornung ◽  
Peng Zhang ◽  
Huib Visser ◽  
...  
Keyword(s):  
Health Monitoring ◽  
Vital Signs ◽  
Angular Separation ◽  
Fmcw Radar ◽  
Vital Signs Monitoring

scholarly journals Contactless Measurement of Vital Signs Using Thermal and RGB Cameras: A Study of COVID 19-Related Health Monitoring

Sensors ◽  
2022 ◽  
Vol 22 (2) ◽  
pp. 627
Author(s):  
Fan Yang ◽  
Shan He ◽  
Siddharth Sadanand ◽  
Aroon Yusuf ◽  
Miodrag Bolic
Keyword(s):  
Neural Network ◽  
Heart Rate ◽  
Health Monitoring ◽  
Healthy Subjects ◽  
Vital Signs ◽  
Absolute Error ◽  
Regions Of Interest ◽  
Contactless Measurement ◽  
Vital Signs Monitoring ◽  
Face Detector

In this study, a contactless vital signs monitoring system was proposed, which can measure body temperature (BT), heart rate (HR) and respiration rate (RR) for people with and without face masks using a thermal and an RGB camera. The convolution neural network (CNN) based face detector was applied and three regions of interest (ROIs) were located based on facial landmarks for vital sign estimation. Ten healthy subjects from a variety of ethnic backgrounds with skin colors from pale white to darker brown participated in several different experiments. The absolute error (AE) between the estimated HR using the proposed method and the reference HR from all experiments is 2.70±2.28 beats/min (mean ± std), and the AE between the estimated RR and the reference RR from all experiments is 1.47±1.33 breaths/min (mean ± std) at a distance of 0.6–1.2 m.

Biocompatible and Ultra-Flexible Inorganic Strain Sensors Attached to Skin for Long-Term Vital Signs Monitoring

2016 ◽  
Vol 37 (4) ◽  
pp. 496-499 ◽  
Author(s):  
Yihao Chen ◽  
Bingwei Lu ◽  
Ying Chen ◽  
Xue Feng
Keyword(s):  
Vital Signs ◽  
Strain Sensors ◽  
Vital Signs Monitoring

scholarly journals Non-Contact Sensor for Long-Term Continuous Vital Signs Monitoring: A Review on Intelligent Phased-Array Doppler Sensor Design

Sensors ◽  
2017 ◽  
Vol 17 (11) ◽  
pp. 2632 ◽  
Author(s):  
Travis Hall ◽  
Donald Lie ◽  
Tam Nguyen ◽  
Jill Mayeda ◽  
Paul Lie ◽  
...  
Keyword(s):  
Phased Array ◽  
Vital Signs ◽  
Sensor Design ◽  
Vital Signs Monitoring ◽  
Contact Sensor

The electrical impedance measurements of dry electrode materials for the ECG measuring after repeated washing

2017 ◽  
Vol 21 (1) ◽  
pp. 59-71 ◽  
Author(s):  
Emma Sofia Kaappa ◽  
Atte Joutsen ◽  
Alper Cömert ◽  
Jukka Vanhala
Keyword(s):  
Electrode Materials ◽  
Conductive Polymer ◽  
Vital Signs ◽  
Metal Sheet ◽  
Electrode Impedance ◽  
Metal Electrodes ◽  
Content Type ◽  
Vital Signs Monitoring ◽  
Dry Electrode

Purpose The purpose of this paper was to offer more reliable dry electrode materials for long-term measuring and determine how repeated machine washing affects the measured impedance and surface resistance of the sample electrodes. The aim was to manufacture electrodes that could be used for the measurement of ECG. Skin friendly, metal sheet type, electrodes could be a solution. Design/methodology/approach In addition to two conventional electrodes already used in heart rate belts, the authors prepared and tested three different sheet metal electrodes. Three 20-mm-diameter electrodes were manufactured from the following materials: silvered knit, conductive polymer, stainless steel, silver and platinum. Electrode impedance was measured at seven frequencies from 1 Hz to 1 MHz, by placing two electrodes face-to-face. Measurements were taken on unused electrodes and after multiple machine washes at 40°C. Findings Analysis of the measurements indicates that with every material tested, the impedances are elevated after repeated washes. All metallic materials have impedances in the range of 0.01 to 4.5 Ω. Metal sheet electrodes can be integrated comfortably into the textile, and they endure textile maintenance without loss of electrical properties. Practical implications Metal sheet electrodes function well in long-term vital signs monitoring, provide a reliable signal and are resistant to maintenance. For the reasons described in this research, they can be used as a long-term wearable sensor. Originality/value Novel electrode material for long-term measuring research is important in many disciplines such as health care and apparel manufacturing. These findings suggest that pure metal electrodes are better than conductive textiles in long-term measuring.

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