Air Quality Monitoring System Within Campus by Using Wireless Sensor Networks

Abstract

The main objective of this project is to devise a simple low cost microcontroller based air pollution monitoring system using wireless technology which finds presence of various gases like CO2, SO, NO,etc and parameters like humidity ,temperature ,etc. , displays it on LCD and forwards it to remote user. This project is developed by using PIC 16F877A Microcontroller, SIM 900 GSM Module, JHD204A LCD display and gas sensors. The advantage of using GSM based technology is that GSM based communication network is distributed over a large area and have almost reached to every part of this 21st century world. GSM technology also do provide users with high quality signal and channels, giving them access to high quality digital communication at reasonable cost. This embedded system can prove to be useful for anyone who wish to monitor the quality of air at a location without being physically present there .The main advantages of the research are that the system may be able to collect the pollution levels throughout the 24 hours of the day and that the data so collected may serve as a data base which can be used for various analysis whenever required .The system may offer pollutant levels of a particular industry and this estimation may serve as an enchiridion to the government for allowing or disallowing a particular industry to be set up in a particular area.