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WorldCist'17 - 5th World Conference on Information Systems and Technologies

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Monitoring Health Factors in Indoor Living Environments Using Internet of Things

Indoor air quality parameters are extremely important to create a productive and healthy indoor environment however in many cases the air quality parameters are very different from those defined as healthy values. Considering that we spend about 90% of our lives indoors, it is extremely important to monitor the indoor air quality in real time to detect problems in the quality of air and plan interventions in the building, or in the ventilation systems in order to improve air quality. This paper aims to present a solution for indoor air quality monitoring based in Internet of Things Architecture (IoT). This solution is composed by a hardware prototype for ambient data collection and a web and smartphone compatibility for data consulting. This system, denominated by iAQ Wi-Fi, is based on open-source technologies. It is a totality Wi-Fi system, with several advantages compared to existing systems, such as its modularity, scalability, low cost and easy installation. This system performs real-time data collection that is stored in a ThingSpeak platform. The system has smartphone compatibility which allow easier access to data in real time. In this application, the user can check the latest data collected by the system and access to the history of the air quality parameters in graphical representation. iAQ Wi-Fi uses a open-source Arduino UNO as processing unit, a ESP8266 for Wi-Fi 2.4GHZ as communication unit and incorporates an temperature and humidity sensor, a CO2 sensor, a dust sensor and a digital light sensor as sensing unit.


Gonçalo Marques    
Polytechnic Institute of Guarda

Rui Pitarma    
Polytechnic Institute of Guarda


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