A wristwatch-based wireless sensor platform for IoT health monitoring applications

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dc.contributor.author Kumar, Sanjeev
dc.contributor.author Buckley, John L.
dc.contributor.author Barton, John
dc.contributor.author Pigeon, Melusine
dc.contributor.author Newberry, Robert
dc.contributor.author Rodencal, Matthew
dc.contributor.author Hajzeraj, Adhurim
dc.contributor.author Hannon, Tim
dc.contributor.author Rogers, Ken
dc.contributor.author Casey, Declan
dc.contributor.author O'Sullivan, Donal
dc.contributor.author O'Flynn, Brendan
dc.date.accessioned 2020-03-27T10:06:56Z
dc.date.available 2020-03-27T10:06:56Z
dc.date.issued 2020-03-16
dc.identifier.citation Kumar, S., Buckley, J. L., Barton, J., Pigeon, M., Newberry, R., Rodencal, M., Hajzeraj, A., Hannon, T., Rogers, K., Casey, D., O'Sullivan, D. and O'Flynn, B. (2020) 'A Wristwatch-Based Wireless Sensor Platform for IoT Health Monitoring Applications', Sensors, 20(6), 1675, (25 pp.), doi: 10.3390/s20061675 en
dc.identifier.volume 20 en
dc.identifier.issued 6 en
dc.identifier.startpage 1 en
dc.identifier.endpage 25 en
dc.identifier.issn 1424-8220
dc.identifier.uri http://hdl.handle.net/10468/9785
dc.identifier.doi 10.3390/s20061675 en
dc.description.abstract A wristwatch-based wireless sensor platform for IoT wearable health monitoring applications is presented. The paper describes the platform in detail, with a particular focus given to the design of a novel and compact wireless sub-system for 868 MHz wristwatch applications. An example application using the developed platform is discussed for arterial oxygen saturation (SpO2) and heart rate measurement using optical photoplethysmography (PPG). A comparison of the wireless performance in the 868 MHz and the 2.45 GHz bands is performed. Another contribution of this work is the development of a highly integrated 868 MHz antenna. The antenna structure is printed on the surface of a wristwatch enclosure using laser direct structuring (LDS) technology. At 868 MHz, a low specific absorption rate (SAR) of less than 0.1% of the maximum permissible limit in the simulation is demonstrated. The measured on-body prototype antenna exhibits a −10 dB impedance bandwidth of 36 MHz, a peak realized gain of −4.86 dBi and a radiation efficiency of 14.53% at 868 MHz. To evaluate the performance of the developed 868 MHz sensor platform, the wireless communication range measurements are performed in an indoor environment and compared with a commercial Bluetooth wristwatch device. en
dc.description.sponsorship Enterprise Ireland ((Grant No IP20170559); (Holistics DTIF (EIDT20180291-A)); Science Foundation Ireland (Vistamilk (SFI 16/RC/3835)); en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher MDPI en
dc.relation.uri https://www.mdpi.com/1424-8220/20/6/1675/htm
dc.rights © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). en
dc.rights.uri http://creativecommons.org/licenses/by/4.0/ en
dc.subject IoT en
dc.subject Wearables en
dc.subject Sub-GHz en
dc.subject Electrically small antennas en
dc.subject LDS en
dc.subject Wristwatch antenna en
dc.subject Bandwidth enhancement en
dc.subject Healthcare en
dc.subject PPG en
dc.subject Wireless sensor en
dc.title A wristwatch-based wireless sensor platform for IoT health monitoring applications en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Brendan O'Flynn, Tyndall Microsystems, University College Cork, Cork, Ireland. +353-21-490-3000 Email: brendan.oflynn@tyndall.ie en
dc.internal.availability Full text available en
dc.date.updated 2020-03-27T09:54:41Z
dc.description.version Published Version en
dc.internal.rssid 508028881
dc.contributor.funder Enterprise Ireland en
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder European Regional Development Fund en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Sensors en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress brendan.oflynn@tyndall.ie en
dc.internal.IRISemailaddress john.barton@tyndall.ie en
dc.internal.IRISemailaddress john.buckley@ucc.ie en
dc.identifier.articleid 1675 en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Research Centres/13/RC/2077/IE/CONNECT: The Centre for Future Networks & Communications/ en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2289/IE/INSIGHT - Irelands Big Data and Analytics Research Centre/ en


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© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Except where otherwise noted, this item's license is described as © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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