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Sensors 2018, 18(2), 581; doi:10.3390/s18020581

A Modular IoT Platform for Real-Time Indoor Air Quality Monitoring

1
Department of Electrical Engineering, College of Engineering, Qatar University, Doha 2713, Qatar
2
Qatar Mobility and Innovation Center, QSTP, Doha 210531, Qatar
*
Author to whom correspondence should be addressed.
Received: 10 January 2018 / Revised: 7 February 2018 / Accepted: 8 February 2018 / Published: 14 February 2018
(This article belongs to the Section Sensor Networks)
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Abstract

The impact of air quality on health and on life comfort is well established. In many societies, vulnerable elderly and young populations spend most of their time indoors. Therefore, indoor air quality monitoring (IAQM) is of great importance to human health. Engineers and researchers are increasingly focusing their efforts on the design of real-time IAQM systems using wireless sensor networks. This paper presents an end-to-end IAQM system enabling measurement of CO2, CO, SO2, NO2, O3, Cl2, ambient temperature, and relative humidity. In IAQM systems, remote users usually use a local gateway to connect wireless sensor nodes in a given monitoring site to the external world for ubiquitous access of data. In this work, the role of the gateway in processing collected air quality data and its reliable dissemination to end-users through a web-server is emphasized. A mechanism for the backup and the restoration of the collected data in the case of Internet outage is presented. The system is adapted to an open-source Internet-of-Things (IoT) web-server platform, called Emoncms, for live monitoring and long-term storage of the collected IAQM data. A modular IAQM architecture is adopted, which results in a smart scalable system that allows seamless integration of various sensing technologies, wireless sensor networks (WSNs) and smart mobile standards. The paper gives full hardware and software details of the proposed solution. Sample IAQM results collected in various locations are also presented to demonstrate the abilities of the system. View Full-Text
Keywords: indoor air quality monitoring; WSN; Internet-of-Things; Emoncms indoor air quality monitoring; WSN; Internet-of-Things; Emoncms
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Benammar, M.; Abdaoui, A.; Ahmad, S.H.; Touati, F.; Kadri, A. A Modular IoT Platform for Real-Time Indoor Air Quality Monitoring. Sensors 2018, 18, 581.

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