Paper Title: Intelligent Gas Leak Monitoring and Alert System with Blynk IoT Platform

Author's name: Dr. Mahendran G, Radhika Kumar, Florin Wilfred, Joseph Sengol

The frequent monitoring and control of the workplace atmosphere is essential to prevent dangerous situations and maintain a clean air environment, particularly in industrial settings or homes dealing with gas or liquefied petroleum gas (LPG), which is derived from petroleum. Gas leakage can pose serious health risks, making it crucial to implement safety measures. To address this issue, we propose an Internet of Things (IoT)-based gas leak detection system to solve this problem. The system utilizes Node MCU ESP32 Wi-Fi as the microcontroller and employs a combustible gas sensor (MQ4) to detect the presence of methane (CH4), carbon monoxide (CO), and compressed natural gas (CNG). The microcontroller used is a Node MCU ESP32 Wi-Fi. Methane concentrations between 200 ppm and 9,500 ppm can be detected with the MQ4 sensor. The MQ4 determines the gas concentration by observing the sensor's voltage output, and the ESP32 sends this information to the Blynk IoT platform via an android phone. Utilizing the Thingspeak IoT Platform, the data is visualized. Additionally, a fan will start to run as soon as a leak appears, along with an unsettling hum.

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