Development and Assessment of an Indoor Air Quality Control IoT-Based System

Abstract

Good health and well-being are primary goals within the list of Sustainable Development Goals (SDGs) proposed by the United Nations (UN) in 2015. New technologies, such as Internet of Things (IoT) and Cloud Computing, can aid to achieve that goal by enabling people to improve their lifestyles and have a more healthy and comfortable life. Pollution monitoring is especially important in order to avoid exposure to fine particles and to control the impact of human activity on the natural environment. Some of the sources of hazardous gas emissions can be found indoors. For instance, carbon monoxide (CO), which is considered a silent killer because it can cause death, is emitted by water heaters and heaters that rely on fossil fuels. Existing solutions for indoor pollution monitoring suffer from some drawbacks that make their implementation impossible for households with limited financial resources. This paper presents the development of IdeAir, a low-cost IoT-based air quality monitoring system that aims to reduce the disadvantages of existing systems. IdeAir was designed as a proof of concept to capture and determine the concentrations of harmful gases in indoor environments and, depending on their concentration levels, issue alarms and notifications, turn on the fan, and/or open the door. It has been developed following the Test-Driven Development Methodology for IoT-based Systems (TDDM4IoTS), which, together with the tool (based on this methodology) used for the automation of the development of IoT-based systems, has facilitated the work of the developers. Preliminary results on the functioning of IdeAir show a high level of acceptance by potential users.

Internet of Things (IoT)-based indoor plant care system

“…The stage considered least important by developers is the Model refinement stage, followed by the Software refinement stage. The reason why the developers surveyed downplayed the importance of these stages may be because they have developed systems such as an IoT-based smart medicine dispenser to control and monitor medication intake [14] and an IoTS for indoor air quality control (called IdeAir) [11], in which refinement work on both (platform-independent) models and software was not necessary, because these were small projects whose requirements were very clearly established from the beginning with the client/end-user. However, they do not consider it completely unnecessary.…”

“…Indoor pollution can be caused by the entry of vehicles either to load or unload goods in factories, workshops, or warehouses, or simply to park them in garages when these are inside homes [21]. One of the fields of application of IoTS is the monitoring of the concentration levels of pollutant gases using sensors [7,11,22] and, as mentioned above, one of the practices that have been implemented to help decontaminate indoor air and improve its quality is the use of ornamental plants [2,6,37]. These two practices, i.e., technology-based surveillance and the use of ornamental plants, can be combined and complement each other.…”

“…According to the papers retrieved in our study of the state of the art, works proposing solutions for the care of potted plants and those proposing systems for pollution monitoring are divorced. Nonetheless, some authors, such as Guerrero-Ulloa et al [11] propose a system that not only monitors and alerts about pollution levels but also tries to decrease pollution by turning on fans and opening windows automatically. Therefore, our proposal, which is described in the following section, tries to overcome the limitations of the analysed systems.…”

“…Both (web and mobile) applications are designed to support several devices deployed in one or several buildings (either homes or workplaces), so one or several users can be registered in these applications. 11. If all values are within the appropriate ranges, then the condition of the plant is good and "I feel fine" is displayed.…”

Smart Wireless Message Display: Enhancing Communication with Intelligent Technology

“…The phrase "wireless notice board" is overly limiting in the context of this article due to its broad spectrum of potential interpretations. A display device, such as an LCD, can present a message or notification within this system [3]. By utilizing the SMS feature on your mobile device, you may quickly configure or alter this message from any location.…”