IoT smartwatch based on open technologies for the collection of thermal comfort data

This paper presents an IoT smartwatch based on open technologies for thermal comfort data collection. The device performs simplified thermal comfort surveys every hour, collecting data such as clothing insulation level (clo), metabolic activity (met), location, thermal sensation, and thermal accepta...

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Main Authors: Julio Landa, Guillermo Barrios, Guadalupe Huelsz
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:HardwareX
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2468067225000112
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author Julio Landa
Guillermo Barrios
Guadalupe Huelsz
author_facet Julio Landa
Guillermo Barrios
Guadalupe Huelsz
author_sort Julio Landa
collection DOAJ
description This paper presents an IoT smartwatch based on open technologies for thermal comfort data collection. The device performs simplified thermal comfort surveys every hour, collecting data such as clothing insulation level (clo), metabolic activity (met), location, thermal sensation, and thermal acceptance. In addition, it measures two physiological variables: skin temperature and heart rate. The smartwatch is built with low-cost components, including a XIAO ESP32C3 microcontroller, a GY-906 temperature sensor, a MAX30102 heart rate sensor, and Seeed Studio’s XIAO Round Display touchscreen. All collected data are published in real time on an IoT platform that allows remote access to all information. During device registration, the user is prompted to complete a Google Form, where additional data such as gender, age, height, weight, and frequency of air conditioner use are collected. This information, in combination with data from the smartwatch, contributes to a robust database. The ease of use, the design of the device, and its open-source nature make it ideal for the collection of thermal comfort data and its potential use for the generation of adaptative thermal comfort models.
format Article
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institution Kabale University
issn 2468-0672
language English
publishDate 2025-06-01
publisher Elsevier
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series HardwareX
spelling doaj-art-808c57cf41b84b1eacc06b0c4ba1c4b92025-08-20T03:46:49ZengElsevierHardwareX2468-06722025-06-0122e0063310.1016/j.ohx.2025.e00633IoT smartwatch based on open technologies for the collection of thermal comfort dataJulio Landa0Guillermo Barrios1Guadalupe Huelsz2Instituto de Energías Renovables, Universidad Nacional Autónoma de Mexico, Priv. Xochicalco S/N Temixco Morelos, CP 62580, MexicoCorresponding author.; Instituto de Energías Renovables, Universidad Nacional Autónoma de Mexico, Priv. Xochicalco S/N Temixco Morelos, CP 62580, MexicoInstituto de Energías Renovables, Universidad Nacional Autónoma de Mexico, Priv. Xochicalco S/N Temixco Morelos, CP 62580, MexicoThis paper presents an IoT smartwatch based on open technologies for thermal comfort data collection. The device performs simplified thermal comfort surveys every hour, collecting data such as clothing insulation level (clo), metabolic activity (met), location, thermal sensation, and thermal acceptance. In addition, it measures two physiological variables: skin temperature and heart rate. The smartwatch is built with low-cost components, including a XIAO ESP32C3 microcontroller, a GY-906 temperature sensor, a MAX30102 heart rate sensor, and Seeed Studio’s XIAO Round Display touchscreen. All collected data are published in real time on an IoT platform that allows remote access to all information. During device registration, the user is prompted to complete a Google Form, where additional data such as gender, age, height, weight, and frequency of air conditioner use are collected. This information, in combination with data from the smartwatch, contributes to a robust database. The ease of use, the design of the device, and its open-source nature make it ideal for the collection of thermal comfort data and its potential use for the generation of adaptative thermal comfort models.http://www.sciencedirect.com/science/article/pii/S2468067225000112Thermal comfortIoTSmartwatchPhysiological measurementsOpen-source hardware
spellingShingle Julio Landa
Guillermo Barrios
Guadalupe Huelsz
IoT smartwatch based on open technologies for the collection of thermal comfort data
HardwareX
Thermal comfort
IoT
Smartwatch
Physiological measurements
Open-source hardware
title IoT smartwatch based on open technologies for the collection of thermal comfort data
title_full IoT smartwatch based on open technologies for the collection of thermal comfort data
title_fullStr IoT smartwatch based on open technologies for the collection of thermal comfort data
title_full_unstemmed IoT smartwatch based on open technologies for the collection of thermal comfort data
title_short IoT smartwatch based on open technologies for the collection of thermal comfort data
title_sort iot smartwatch based on open technologies for the collection of thermal comfort data
topic Thermal comfort
IoT
Smartwatch
Physiological measurements
Open-source hardware
url http://www.sciencedirect.com/science/article/pii/S2468067225000112
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AT guillermobarrios iotsmartwatchbasedonopentechnologiesforthecollectionofthermalcomfortdata
AT guadalupehuelsz iotsmartwatchbasedonopentechnologiesforthecollectionofthermalcomfortdata