LPG Gas Detection System With Auto Cut-Off Regulator

Authors: Prof. M.D. Patil, Munjal Sumit Naganath, Shinde Atharv Maruti, Sayyad Azad Firoj

Abstract: The LPG Gas Detection System with Auto Cut-Off Regulator using Servo Motor is designed to improve safety by detecting LPG gas leakage and taking automatic preventive action. LPG is widely used in homes, hotels, restaurants, laboratories, and industries because of its efficiency and convenience. However, leakage of LPG gas can lead to dangerous situations such as fire accidents, explosions, suffocation, and property damage. To overcome these problems, the proposed system uses an MQ-6 gas sensor to continuously monitor the surrounding environment for LPG leakage. The sensor sends signals to the Arduino UNO microcontroller whenever the gas concentration exceeds the predefined safety limit. The microcontroller then activates a buzzer and warning indicator to alert nearby users about the leakage condition. This quick alert system helps people take immediate safety precautions and avoid hazardous situations. The system operates automatically with fast response time and minimum human intervention. Therefore, it provides a reliable and effective solution for improving LPG gas safety In addition to gas detection and warning generation, the proposed system also provides an automatic gas cut-off mechanism using a servo motor. The servo motor is connected to the LPG regulator knob and is controlled by the Arduino UNO microcontroller. When gas leakage is detected, the servo motor automatically rotates the regulator knob in the OFF direction to stop the gas supply and prevent further leakage. The system also uses relay modules to disconnect electrical appliances and activate an exhaust fan to remove leaked gas from the surrounding area, reducing the chances of fire and explosion. The proposed system is cost-effective, compact, and easy to install in domestic as well as industrial environments.

DOI: http://doi.org/10.5281/zenodo.20309495