Seat-Occupancy Detection System and Breathing Rate Monitoring Based on a Low-Cost mm-Wave Radar at 60 GHz

This work presents a seat-occupancy detection system based on a PCR (Pulsed Coherent Radar) at the unlicensed 60 GHz ISM band. The radar can measure distances with sub-millimeter resolution. Therefore, the system can detect the presence of people occupying the seats by measuring small movements of t...

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Main Authors: Antonio Lazaro, Marc Lazaro, Ramon Villarino, David Girbau
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9514844/
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author Antonio Lazaro
Marc Lazaro
Ramon Villarino
David Girbau
author_facet Antonio Lazaro
Marc Lazaro
Ramon Villarino
David Girbau
author_sort Antonio Lazaro
collection DOAJ
description This work presents a seat-occupancy detection system based on a PCR (Pulsed Coherent Radar) at the unlicensed 60 GHz ISM band. The radar can measure distances with sub-millimeter resolution. Therefore, the system can detect the presence of people occupying the seats by measuring small movements of the body, such as those produced by breathing. In consequence, the system not only measures seat-occupancy but also breathing rate, which is estimated from the amplitude peaks after filtering the amplitude measured by the radar to remove the noise. The effect of the car vibrations and random body movement is experimentally studied. Measurements performed with adults, as well as with a baby emulator sitting in a child seat, are presented. Comparison of the system with another that measures the breath based on airflow shows good agreement and permits its validation.
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spelling doaj.art-e6375bf5eb4243e3bce8f18c07940f8f2022-12-21T18:31:44ZengIEEEIEEE Access2169-35362021-01-01911540311541410.1109/ACCESS.2021.31053909514844Seat-Occupancy Detection System and Breathing Rate Monitoring Based on a Low-Cost mm-Wave Radar at 60 GHzAntonio Lazaro0https://orcid.org/0000-0003-3160-5777Marc Lazaro1https://orcid.org/0000-0002-8930-1170Ramon Villarino2https://orcid.org/0000-0001-9692-8943David Girbau3https://orcid.org/0000-0001-7995-5536Electronics, Electrical and Automatics Engineering Department, Universitat Rovira i Virgili, Tarragona, SpainElectronics, Electrical and Automatics Engineering Department, Universitat Rovira i Virgili, Tarragona, SpainElectronics, Electrical and Automatics Engineering Department, Universitat Rovira i Virgili, Tarragona, SpainElectronics, Electrical and Automatics Engineering Department, Universitat Rovira i Virgili, Tarragona, SpainThis work presents a seat-occupancy detection system based on a PCR (Pulsed Coherent Radar) at the unlicensed 60 GHz ISM band. The radar can measure distances with sub-millimeter resolution. Therefore, the system can detect the presence of people occupying the seats by measuring small movements of the body, such as those produced by breathing. In consequence, the system not only measures seat-occupancy but also breathing rate, which is estimated from the amplitude peaks after filtering the amplitude measured by the radar to remove the noise. The effect of the car vibrations and random body movement is experimentally studied. Measurements performed with adults, as well as with a baby emulator sitting in a child seat, are presented. Comparison of the system with another that measures the breath based on airflow shows good agreement and permits its validation.https://ieeexplore.ieee.org/document/9514844/Automotive radarmm-wave radarseat occupancydetectionvital-sign monitoringbreathing monitoring
spellingShingle Antonio Lazaro
Marc Lazaro
Ramon Villarino
David Girbau
Seat-Occupancy Detection System and Breathing Rate Monitoring Based on a Low-Cost mm-Wave Radar at 60 GHz
IEEE Access
Automotive radar
mm-wave radar
seat occupancy
detection
vital-sign monitoring
breathing monitoring
title Seat-Occupancy Detection System and Breathing Rate Monitoring Based on a Low-Cost mm-Wave Radar at 60 GHz
title_full Seat-Occupancy Detection System and Breathing Rate Monitoring Based on a Low-Cost mm-Wave Radar at 60 GHz
title_fullStr Seat-Occupancy Detection System and Breathing Rate Monitoring Based on a Low-Cost mm-Wave Radar at 60 GHz
title_full_unstemmed Seat-Occupancy Detection System and Breathing Rate Monitoring Based on a Low-Cost mm-Wave Radar at 60 GHz
title_short Seat-Occupancy Detection System and Breathing Rate Monitoring Based on a Low-Cost mm-Wave Radar at 60 GHz
title_sort seat occupancy detection system and breathing rate monitoring based on a low cost mm wave radar at 60 ghz
topic Automotive radar
mm-wave radar
seat occupancy
detection
vital-sign monitoring
breathing monitoring
url https://ieeexplore.ieee.org/document/9514844/
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AT ramonvillarino seatoccupancydetectionsystemandbreathingratemonitoringbasedonalowcostmmwaveradarat60ghz
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