GSM Based Gas Leakage Warning System

Abstract: The leakage of dangerousand flammable gas like LPG in cars, service stations, households and in storage tanks can bedetected using the gas sensor unit. This unit can be easily integrated into aunit that can sound an alarm. The sensor has great sensitivity and rapid response time. This sensor can also beused to sense other gases like iso-butane, propane and even cigarette smoke. The output of the sensor goes LOW as soon as the sensor senses any gas leakage in the atmosphere. This is detected by the microcontroller and buzzer is turned on. After a delay of few milliseconds, the exhaust fan is also turned on for throwing the gas out and the main power supply is turned off. A message ‗LEAKAGE‘ is sent to a mobile number that is predefined.

Keywords: MQ6 (gas sensor), GSM module, GSM network, Short message service, LPG gas