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Open AccessArticle

Body Temperature—Indoor Condition Monitor and Activity Recognition by MEMS Accelerometer Based on IoT-Alert System for People in Quarantine Due to COVID-19

Department of Industrial Engineering, University of Salerno, 84084 Fisciano, SA, Italy
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Author to whom correspondence should be addressed.
Academic Editor: Paolo Visconti
Sensors 2021, 21(7), 2313; https://doi.org/10.3390/s21072313
Received: 16 February 2021 / Revised: 20 March 2021 / Accepted: 21 March 2021 / Published: 26 March 2021
(This article belongs to the Special Issue Instrument and Measurement)
Coronavirus disease 19 (COVID-19) is a virus that spreads through contact with the respiratory droplets of infected persons, so quarantine is mandatory to break the infection chain. This paper proposes a wearable device with the Internet of Things (IoT) integration for real-time monitoring of body temperature the indoor condition via an alert system to the person in quarantine. The alert is transferred when the body thermal exceeds the allowed threshold temperature. Moreover, an algorithm Repetition Spikes Counter (RSC) based on an accelerometer is employed in the role of human activity recognition to realize whether the quarantined person is doing physical exercise or not, for auto-adjustment of threshold temperature. The real-time warning and stored data analysis support the family members/doctors in following and updating the quarantined people’s body temperature behavior in the tele-distance. The experiment includes an M5stickC wearable device, a Microelectromechanical system (MEMS) accelerometer, an infrared thermometer, and a digital temperature sensor equipped with the user’s wrist. The indoor temperature and humidity are measured to restrict the virus spread and supervise the room condition of the person in quarantine. The information is transferred to the cloud via Wi-Fi with Message Queue Telemetry Transport (MQTT) broker. The Bluetooth is integrated as an option for the data transfer from the self-isolated person to the electronic device of a family member in the case of Wi-Fi failed connection. The tested result was obtained from a student in quarantine for 14 days. The designed system successfully monitored the body temperature, exercise activity, and indoor condition of the quarantined person that handy during the Covid-19 pandemic. View Full-Text
Keywords: COVID-19; body temperature; IoT; accelerometer; thermometer; wearable device; indoor condition; activity recognition COVID-19; body temperature; IoT; accelerometer; thermometer; wearable device; indoor condition; activity recognition
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MDPI and ACS Style

Hoang, M.L.; Carratù, M.; Paciello, V.; Pietrosanto, A. Body Temperature—Indoor Condition Monitor and Activity Recognition by MEMS Accelerometer Based on IoT-Alert System for People in Quarantine Due to COVID-19. Sensors 2021, 21, 2313. https://doi.org/10.3390/s21072313

AMA Style

Hoang ML, Carratù M, Paciello V, Pietrosanto A. Body Temperature—Indoor Condition Monitor and Activity Recognition by MEMS Accelerometer Based on IoT-Alert System for People in Quarantine Due to COVID-19. Sensors. 2021; 21(7):2313. https://doi.org/10.3390/s21072313

Chicago/Turabian Style

Hoang, Minh L.; Carratù, Marco; Paciello, Vincenzo; Pietrosanto, Antonio. 2021. "Body Temperature—Indoor Condition Monitor and Activity Recognition by MEMS Accelerometer Based on IoT-Alert System for People in Quarantine Due to COVID-19" Sensors 21, no. 7: 2313. https://doi.org/10.3390/s21072313

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