Design Gas Leak Detection System in Residential Areas Using LoRa Communication
DOI:
https://doi.org/10.33795/jartel.v14i3.5288Keywords:
Gas Leak Detection, LoRa, Microcontroller ESP8266, MQ-6 Sensor, Home Safety System, Early Warning System, LPGAbstract
This research designs and implements a gas leak detection system for residential areas utilizing Long Range (LoRa) communication to enhance safety. The proposed system consists of multiple transmitter nodes, each integrated with an MQ-6 sensor (for liquefied petroleum gas/LPG), an MQ-2 sensor (for combustible gases), a flame sensor, and a DHT11 temperature sensor. A gas solenoid valve is incorporated to automatically shut off the gas supply upon leak detection. All sensor data from the transmitter nodes are sent wirelessly via LoRa to a central receiver unit, which then relays the information to a user-accessible smartphone application for real-time monitoring. Testing results demonstrate the system’s effectiveness: the MQ-6 and MQ-2 sensors successfully detected hazardous gas concentrations, reaching 230 PPM and 234 PPM respectively, which are levels indicating a significant leak risk. The flame sensor accurately identified fire presence within a 45 cm range, and the DHT11 sensor provided ambient temperature readings (e.g., 30°C). The study concludes that the integration of multi-sensor nodes with LoRa communication presents a reliable, low-power, and wide-coverage solution for early warning and prevention of gas-related accidents in residential communities.
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