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dc.contributor.authorZradziński, Patryk
dc.contributor.authorKarpowicz, Jolanta
dc.contributor.authorGryz, Krzysztof
dc.contributor.authorMorzyński, Leszek
dc.contributor.authorMłyński, Rafał
dc.contributor.authorSwidziński, Adam
dc.contributor.authorGodziszewski, Konrad
dc.contributor.authorRamos-Gonzalez, Maria Victoria
dc.identifier.citationSensors (Basel) . 2020 Dec 12;20(24):7131.es_ES
dc.description.abstractThe aim of this study was to evaluate the absorption in a user's head of an electromagnetic field (EMF) emitted by the Wi-Fi and/or Bluetooth module of a wearable small Internet of Things (IoT) electronic device (emitting EMF of up to 100 mW), in order to test the hypothesis that EMF has an insignificant influence on humans, and to compare the levels of such EMF absorption in various scenarios when using this device. The modelled EMF source was a meandered inverted-F antenna (MIFA)-type antenna of the ESP32-WROOM-32 radio module used in wearable devices developed within the reported study. To quantify the EMF absorption, the specific energy absorption rate (SAR) values were calculated in a multi-layer ellipsoidal model of the human head (involving skin, fat, skull bones and brain layers). The obtained results show up to 10 times higher values of SAR from the MIFA located in the headband, in comparison to its location on the helmet. Only wearable IoT devices (similar in construction and way of use to the investigated device) emitting at below 3 mW equivalent isotropically radiated power (EIRP) from Wi-Fi/Bluetooth communications modules may be considered environmentally insignificant EMF sources.es_ES
dc.description.sponsorshipResults of research tasks (II.PB.15, 2.G.04, 2.G.05) carried out within the National Programme “Improvement of safety and working conditions” partly supported in Poland in 2017–2022—within the scope of research and development—by the Ministry of Science and Higher Education/National Centre for Research and Development and —within the scope of state services—by the Ministry of Family, Labour and Social Policy (CIOP-PIB is the Programme’s main co-ordinator) and the project “Electromagnetic Characterisation in Smart Environments of Healthcare and their involvement in Personnel. Occupational and Environmental Health” (PI14CIII/00056) funding from the Sub-Directorate-General for Research Assessment and Promotion in Spain (Instituto de Salud Carlos III) and as part of the research activity of the Warsaw University of Technology.es_ES
dc.relation.isversionofPublisher's versiones_ES
dc.subjectInternet of Things (IoT)es_ES
dc.subjectbiomedical engineeringes_ES
dc.subjectenvironmental engineeringes_ES
dc.subjectnumerical simulations; occupational exposurees_ES
dc.subjectpublic healthes_ES
dc.subjectradiofrequency sensores_ES
dc.subjectspecific energy absorption rate (SAR)es_ES
dc.subjectwireless sensor network (WSN)es_ES
dc.titleModelling the Influence of Electromagnetic Field on the User of a Wearable IoT Device Used in a WSN for Monitoring and Reducing Hazards in the Work Environment.es_ES
dc.rights.licenseAtribución 4.0 Internacional*
dc.contributor.funderInstituto de Salud Carlos III
dc.identifier.journalSensors (Basel, Switzerland)es_ES
dc.repisalud.centroUnidad de Investigación en Salud Digital (UITeS)es_ES

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