Increasing Home Safety through Air quality Monitoring

Abstract:

Many Nigerian homes depend mostly petrol- and diesel-powered generators for their electricity supply as well as Liquified Petroleum Gas for cooking purposes. Though these energy sources solved temporal energy problems, they were highly susceptible to the risk of CO poising and LPG explosion. Hence it has become imperative to define safe usage methods and monitoring schemes that will promote the safety of homes which uses these energy sources. This work is aimed at developing a low-cost in-house gas leakage detector and air quality monitoring  system that intelligently informs home users on the safety conditions of their homes. MQ-135, MQ7 and MQ 2 gas sensors where integrated to a microcontroller-based control system for air quality monitoring and gas leakage detection respectively. The sensitivity of the system was tested under safe and less dangerous laboratory conditions and also deployed for field test result presented by the system suggests that the system is suitable as a home monitoring system with the capacity of improving safety conditions of the home.

Keywords: Gas Sensors, Air Quality, Home Safety, SD Card, LPG, CO.