Automatic Harmful Gas Detection Using Electronic Nose Technology

In this paper, the researchers intended to create an automation of gas detection using electronic nose technology. Harmful gasses nowadays is dangerous to the human health and it can cause death. Detection of harmful gases is essential to the society especially in the industry. It can prevent an accident that will going to happen. MQ2, MQ4, MQ7, MQ8, MQ135 are sensors is used in the system to detect harmful gasses such as Propane, Methane, Hydrogen, Ammonia, and Carbon Monoxide. Electronic nose is one of the breakthrough technologies develop in our community. It has the capability to detect gases and mimic the human nose capability to smell. If the presence of gas is in the area the system will detect the gas. The sensors is responsible for the detection of the gas and the microcontroller will process the data. The system will produce an output via SMS messaging. It contains gas name and its concentration in PPM. Through testing the system, the gasses obtained percentage error of Propane (C3H8) 2.95%, Methane (CH4) 6.64%, Hydrogen (H) 6.35%, Ammonia (NH3) 7.47%, and Carbon Monoxide (CO) 6.35%. It has an average percentage error of 5.77%. The system can detect harmful gases. It can help the community to provide safety to all humans.