Embedded System of LPG Gas Leakage Detection Using Arduino Microcontroller and Kalman Filter Algorithm

Rakha Pramana

doi:10.25299/itjrd.2025.21437

Authors

Rakha Pramana Departement of Electrical Engineering, Faculty of Engineering, Universitas Negeri Semarang

DOI:

https://doi.org/10.25299/itjrd.2025.21437

Keywords:

Arduino, MQ-2 Sensor, Liquefied Petroleum Gas (LPG), Kalman Filter

Abstract

Liquefied Petroleum Gas (LPG) leaks frequently occur in small commercial areas, particularly in food stalls that use LPG as fuel. This is a serious issue that can lead to risks of fire or explosion. To address this problem, a study was conducted to develop an LPG leakage detection system based on Arduino, equipped with an MQ-2 sensor, Kalman filter, and exhaust fan. The MQ-2 sensor is used to detect LPG leaks in the air, while the Kalman filter reduces noise and improves the accuracy of sensor measurements, allowing the system to operate more reliably and stably. The system is designed to provide a quick and accurate response in detecting gas leaks, delivering early warnings and automatically taking preventive actions. The test results show that the Kalman filter, with constants R=10 and Q=0.01, produces smoother and more stable sensor readings compared to the absence of a filter. Additionally, sensor placement distance is a crucial aspect in optimizing system performance. Therefore, this system is expected to be an effective solution to enhance safety in small commercial areas and provide better protection for users against the risks of LPG leaks

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