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IoT-Enabled Gas Sensors: Technologies, Applications, and Opportunities

1
National Institute of Telecommunications (Inatel), Santa Rita do Sapucaí-MG 37540-000, Brazil
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Department of Electrical Engineering, Federal University of Piauí (UFPI), Teresina-PI 64049-550, Brazil
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Instituto de Telecomunicações, 1049-001 Lisboa, Portugal
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Department of Photonics and Optoinformatics, ITMO University, 197101 Saint Petersburg, Russia
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Department of Computer Science and Engineering, Thapar University, Patiala (Punjab) 147004, India
*
Author to whom correspondence should be addressed.
J. Sens. Actuator Netw. 2019, 8(4), 57; https://doi.org/10.3390/jsan8040057
Received: 15 October 2019 / Revised: 6 December 2019 / Accepted: 10 December 2019 / Published: 13 December 2019
Ambient gas detection and measurement had become essential in diverse fields and applications, from preventing accidents, avoiding equipment malfunction, to air pollution warnings and granting the correct gas mixture to patients in hospitals. Gas leakage can reach large proportions, affecting entire neighborhoods or even cities, causing enormous environmental impacts. This paper elaborates on a deep review of the state of the art on gas-sensing technologies, analyzing the opportunities and main characteristics of the transducers, as well as towards their integration through the Internet of Things (IoT) paradigm. This should ease the information collecting and sharing processes, granting better experiences to users, and avoiding major losses and expenses. The most promising wireless-based solutions for ambient gas monitoring are analyzed and discussed, open research topics are identified, and lessons learned are shared to conclude the study. View Full-Text
Keywords: gas sensors; smart sensors; environmental monitoring; Internet of Things gas sensors; smart sensors; environmental monitoring; Internet of Things
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MDPI and ACS Style

Gomes, J.B.A.; Rodrigues, J.J.P.C.; Rabêlo, R.A.L.; Kumar, N.; Kozlov, S. IoT-Enabled Gas Sensors: Technologies, Applications, and Opportunities. J. Sens. Actuator Netw. 2019, 8, 57.

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