IoT Based Design of Air Quality Monitoring System Web Server for Android Platform

The web technology is rapidly increased in various fields. This paper aims to create a server on cloud platform to store data and process the information collected by the air quality monitoring system (AQMS). The monitoring system is developed for transmission and reception of the information received from various data-sources with the use of sensors integrated with microcontroller. The wireless sensing real-time data are transmitted into desired form across the network through internet connection. AQMS is able to monitor concentration of CO₂, CO, NO₂, temperature and relative humidity and stores the concentration values in the database. This research deals with web service with generous API service, which acts as a messenger for different sensors to monitor the sensed data at cloud network. This process comprises a feature of porting sensed data using Channel ID and read API key assigned by the provider that is able to track data at particular intervals. Front end application is developed and hosted on the cloud platform. Additionally, an App is developed on Android platform to visualize real-time data, which are uploaded in the designed web server, displayed data on the smart phone. MIT App Inventor allows programming to develop mobile applications for Android operating system. An online survey is used to examine the trends of air quality and to gather feedback regarding the undergoing process in the environment. The results of air pollution information indicated that the app supported user’s achievement.