Development of Cost-Effective Measurement System for Outdoor and Indoor Environment Parameters Using IoT Technology

Authors

  • Shahid Ali, C. Mani Kumar, G. Raja Kullayappa, Vara Saritha

Abstract

Global warming caused by abnormal concentrations of greenhouse gases such as carbon dioxide and ozone, affects the undesired changes in the environment. The pollution in urban zones forces millions to breathe in contaminated air, comprising substances many times higher than prescribed limits. Meteorology is one of the essential branches of science for tracking the changes in the ambient environment. The proposed cost-effective measurement system, equipped with multiple sensors, is designed and developed with high accuracy and precision. These sensors are interfaced to the ARM microcontroller through the signal conditioning circuit. The measured data is processed to maintain and present the information over the internet of things with Wi-Fi technology. Further, the processor booted with Linux OS stores the database and serves the data through a web server. The system is tested at different geographical areas before and during the lockdown due to COVID-19 in Visakhapatnam, India. The device measures ozone, PM2.5, temperature, and humidity with an accuracy of ±0.65 ?g/m3, ±13.16 ?g/m3, ±0.28 °C, and ±0.45 %. It also measures CO? between 0-5000ppm. The promising aspect of this device is the integration of multiple sensors on a single board computer and increased spatial coverage for air quality monitoring in cities and remote locations in indoor and outdoor environments.

Keywords- Ozone sensor; CO? sensor; PM sensor; ARM controller; IoT;

Published

2020-12-31

Issue

Section

Articles