Global climate change and COVID-19 have changed our social and business life. People spend most of their daily lives indoors. Low-cost devices can monitor indoor air quality (IAQ) and reduce health problems caused by air pollutants. This study proposes a real-time and low-cost air quality monitoring system for smart homes based on Internet of Things (IoT). The developed IoT-based monitoring system is portable and provides users with real-time data transfer about IAQ. During the COVID-19 period, air quality data were collected from the kitchen, bedroom and balcony of their home, where a family of 5 spend most of their time. As a result of the analyzes, it has been determined that indoor particulate matter is mainly caused by outdoor infiltration and cooking emissions, and the CO2 value can rise well above the permissible health limits in case of insufficient ventilation due to night sleep activity. The obtained results show that the developed measuring devices may be suitable for measurement-based indoor air quality management. In addition, the proposed low-cost measurement system compared to existing systems; It has advantages such as modularity, scalability, low cost, portability, easy installation and open-source technologies.

中文翻译：

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基于物联网的低成本智能家居空气质量监测系统

全球气候变化和 COVID-19 改变了我们的社会和商业生活。人们日常生活中的大部分时间都在室内度过。低成本设备可以监测室内空气质量 (IAQ) 并减少由空气污染物引起的健康问题。本研究提出了一种基于物联网 (IoT) 的智能家居实时、低成本的空气质量监测系统。开发的基于物联网的监测系统是便携式的，可为用户提供有关室内空气质量的实时数据传输。在 COVID-19 期间，他们家的厨房、卧室和阳台收集了空气质量数据，这是一个 5 口之家大部分时间都呆在那里的地方。分析结果表明，室内颗粒物主要是由室外渗透和烹饪排放引起的，如果夜间睡眠活动导致通风不足，CO2 值可能会远高于允许的健康限制。所得结果表明，所开发的测量装置可能适用于基于测量的室内空气质量管理。此外，与现有系统相比，建议的低成本测量系统；它具有模块化、可扩展性、低成本、便携性、易于安装和开源技术等优点。