GSM BASED LOW-COST GAS LEAKAGE, EXPLOSION AND FIRE ALERT SYSTEM WITH ADVANCED SECURITY

Abstract

Gas leakage and gas cylinder explosion is a regular problem in today’s world, especially in developing countries. If the gas leakage can’t be detected fast and no action is taken, may lead to explosion and cause severe damages to life and environment. The previous leakage detection systems only use alarms for warning. There is nothing about the protection. In this paper, a system is proposed that can detect not only gas leakage, it can detect explosion, and fire as well. And can take some protective steps. It is equipped with gas sensor to detect the leaked gas and flame sensor to detect the explosion and fire. It has exhaust fan system to clear the leaked gas and solenoid valve to inlet the water or carbon dioxide gas (CO2) if explosion and fire occurs. The explosion security system response individually when there is only a fire with no relation to gas leakage. If any incident occurs, that information is sent to owner through wireless media, a display shows the alert message and buzzer makes the alarm. It is equipped with Global System for Mobile communications (GSM) modem as wireless media to send information to owner through Short Message Service (SMS). This ensures preventive actions immediately even in the absence of people on-site. A prototype of this system has been developed and tested with Liquefied Petroleum Gas (LPG) and Fire as well. The experimental results show that the system can detect the gas leakage, explosion and fire. It is also able to take protective steps quickly. This life saving system is low-cost and useful. It can protect people from burning alive.

Existing System

GSM module, CAN bus communication

Proposed System

The system consists of an Arduino UNO as the brain of the system. It has a MQ-9 gas sensor to detect the gas. MQ-9 is an advance level gas sensor and can detect 100-10000 ppm combustible gas. It has a flame sensor to detect the explosion of gas cylinder and fire. This sensor detects fire and explosion which create radiation between ultraviolet to infrared. The security system consists of exhaust fan and solenoid valve. The exhaust fan is for clearing the leaked gas from the room and the solenoid valve is to inlet carbon dioxide (CO2) or water from the water tank of the home when the explosion and fire incident occurs. The normal firefighting system works little slower because it uses the smoke sensor to detect the fire which works with after burn smoke. But every time is crucial for blast affected people. To detect the fire, fast the flame sensor is more workable. There is a buzzer to create alarm and a LCD screen to show the situation. The GSM modem sends SMS to owner when accident occurs.

Architecture

BLOCK DIAGRAM