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Low-Power and Low-Cost Environmental IoT Electronic Nose Using Initial Action Period Measurements

In this work, we present a complete hardware development and current consumption study of a portable electronic nose designed for the Internet-of-Things (IoT). Thanks to the technique of measuring in the initial action period, it can be reliably powered with a moderate-sized battery. The system is b...

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Autores principales: García-Orellana, Carlos J., Macías-Macías, Miguel, González-Velasco, Horacio M., García-Manso, Antonio, Gallardo-Caballero, Ramón
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6679561/
https://www.ncbi.nlm.nih.gov/pubmed/31331017
http://dx.doi.org/10.3390/s19143183
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author García-Orellana, Carlos J.
Macías-Macías, Miguel
González-Velasco, Horacio M.
García-Manso, Antonio
Gallardo-Caballero, Ramón
author_facet García-Orellana, Carlos J.
Macías-Macías, Miguel
González-Velasco, Horacio M.
García-Manso, Antonio
Gallardo-Caballero, Ramón
author_sort García-Orellana, Carlos J.
collection PubMed
description In this work, we present a complete hardware development and current consumption study of a portable electronic nose designed for the Internet-of-Things (IoT). Thanks to the technique of measuring in the initial action period, it can be reliably powered with a moderate-sized battery. The system is built around the well-known SoC (System on Chip) ESP8266EX, using low-cost electronics and standard sensors from Figaro’s TGS26xx series. This SoC, in addition to a powerful microcontroller, provides Wi-Fi connectivity, making it very suitable for IoT applications. The system also includes a precision analog-to-digital converter for the measurements and a charging module for the lithium battery. During its operation, the designed software takes measurements periodically, and keeps the microcontroller in deep-sleep state most of the time, storing several measurements before uploading them to the cloud. In the experiments and tests carried out, we have focused our work on the measurement and optimization of current consumption, with the aim of extending the battery life. The results show that taking measurements every 4 min and uploading data every five measurements, the battery of 750 mAh needs to be charged approximately once a month. Despite the fact that we have used a specific model of gas sensor, this methodology is quite generic and could be extended to other sensors with lower consumption, increasing very significantly the duration of the battery.
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spelling pubmed-66795612019-08-19 Low-Power and Low-Cost Environmental IoT Electronic Nose Using Initial Action Period Measurements García-Orellana, Carlos J. Macías-Macías, Miguel González-Velasco, Horacio M. García-Manso, Antonio Gallardo-Caballero, Ramón Sensors (Basel) Article In this work, we present a complete hardware development and current consumption study of a portable electronic nose designed for the Internet-of-Things (IoT). Thanks to the technique of measuring in the initial action period, it can be reliably powered with a moderate-sized battery. The system is built around the well-known SoC (System on Chip) ESP8266EX, using low-cost electronics and standard sensors from Figaro’s TGS26xx series. This SoC, in addition to a powerful microcontroller, provides Wi-Fi connectivity, making it very suitable for IoT applications. The system also includes a precision analog-to-digital converter for the measurements and a charging module for the lithium battery. During its operation, the designed software takes measurements periodically, and keeps the microcontroller in deep-sleep state most of the time, storing several measurements before uploading them to the cloud. In the experiments and tests carried out, we have focused our work on the measurement and optimization of current consumption, with the aim of extending the battery life. The results show that taking measurements every 4 min and uploading data every five measurements, the battery of 750 mAh needs to be charged approximately once a month. Despite the fact that we have used a specific model of gas sensor, this methodology is quite generic and could be extended to other sensors with lower consumption, increasing very significantly the duration of the battery. MDPI 2019-07-19 /pmc/articles/PMC6679561/ /pubmed/31331017 http://dx.doi.org/10.3390/s19143183 Text en © 2019 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/).
spellingShingle Article
García-Orellana, Carlos J.
Macías-Macías, Miguel
González-Velasco, Horacio M.
García-Manso, Antonio
Gallardo-Caballero, Ramón
Low-Power and Low-Cost Environmental IoT Electronic Nose Using Initial Action Period Measurements
title Low-Power and Low-Cost Environmental IoT Electronic Nose Using Initial Action Period Measurements
title_full Low-Power and Low-Cost Environmental IoT Electronic Nose Using Initial Action Period Measurements
title_fullStr Low-Power and Low-Cost Environmental IoT Electronic Nose Using Initial Action Period Measurements
title_full_unstemmed Low-Power and Low-Cost Environmental IoT Electronic Nose Using Initial Action Period Measurements
title_short Low-Power and Low-Cost Environmental IoT Electronic Nose Using Initial Action Period Measurements
title_sort low-power and low-cost environmental iot electronic nose using initial action period measurements
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6679561/
https://www.ncbi.nlm.nih.gov/pubmed/31331017
http://dx.doi.org/10.3390/s19143183
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