MQTT Based Intelligent IoT Monitoring and Notification System for Enhanced Comfort of Learning Spaces

Recent studies have shown that the factor of comfortability in learning spaces directly impacts the performance of an individual. The utilization of air conditioning systems in enclosed spaces has been found to have a direct impact on human health and can potentially lead to reduced cognitive focus and negative effects on learning experience. This is mostly due to the uncomfortable temperature settings that are often maintained, as well as the inadequate ventilation provided by air conditioners, which are unable to effectively filter out carbon dioxide (CO2) from the surrounding air. To ensure a comfortable learning environment for students within the laboratory, an IoT-based prototype has been proposed to establish the desired temperature and ventilation settings, using factors such as the number of people, carbon dioxide levels, temperature, humidity, and dust particles. Furthermore, a MQTT-based IoT-based monitoring and notification system has been developed which helps to derive the optimal levels of temperature and ventilation conditions. An event-based notification system has also been programmed that uses Node-red and Ubidots to automate emails and SMS notifications to the main users to inform them about various threshold and parameter values, which further helps to maintain the optimal comfort levels of temperature and proper ventilation of the learning and productivity of students increases.