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

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dc.contributor.authorKumar, Sanjeev
dc.contributor.authorBuckley, John L.
dc.contributor.authorBarton, John
dc.contributor.authorPigeon, Melusine
dc.contributor.authorNewberry, Robert
dc.contributor.authorRodencal, Matthew
dc.contributor.authorHajzeraj, Adhurim
dc.contributor.authorHannon, Tim
dc.contributor.authorRogers, Ken
dc.contributor.authorCasey, Declan
dc.contributor.authorO'Sullivan, Donal
dc.contributor.authorO'Flynn, Brendan
dc.contributor.funderEnterprise Irelanden
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderEuropean Regional Development Funden
dc.date.accessioned2020-03-27T10:06:56Z
dc.date.available2020-03-27T10:06:56Z
dc.date.issued2020-03-16
dc.date.updated2020-03-27T09:54:41Z
dc.description.abstractA 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.sponsorshipEnterprise Ireland ((Grant No IP20170559); (Holistics DTIF (EIDT20180291-A)); Science Foundation Ireland (Vistamilk (SFI 16/RC/3835));en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid1675en
dc.identifier.citationKumar, 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/s20061675en
dc.identifier.doi10.3390/s20061675en
dc.identifier.endpage25en
dc.identifier.issn1424-8220
dc.identifier.issued6en
dc.identifier.journaltitleSensorsen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/9785
dc.identifier.volume20en
dc.language.isoenen
dc.publisherMDPIen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/13/RC/2077/IE/CONNECT: The Centre for Future Networks & Communications/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2289/IE/INSIGHT - Irelands Big Data and Analytics Research Centre/en
dc.relation.urihttps://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.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectIoTen
dc.subjectWearablesen
dc.subjectSub-GHzen
dc.subjectElectrically small antennasen
dc.subjectLDSen
dc.subjectWristwatch antennaen
dc.subjectBandwidth enhancementen
dc.subjectHealthcareen
dc.subjectPPGen
dc.subjectWireless sensoren
dc.titleA wristwatch-based wireless sensor platform for IoT health monitoring applicationsen
dc.typeArticle (peer-reviewed)en
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