Design and Development of an IoT-Based Leakage Detection System for Kitchens
U. J. Ekah
*
Department of Physics, University of Cross River State, Calabar, Nigeria.
Simeon Ozuomba
Department of Computer Engineering, University of Uyo, Uyo, Nigeria.
Etinamabasiyaka Ekott
Department of Physics, University of Uyo, Uyo, Nigeria.
A. O. Njok
Department of Physics, University of Cross River State, Calabar, Nigeria.
A. O. Adeniran
Department of Physics, University of Uyo, Uyo, Nigeria.
Chibuzo Emeruwa
Department of Physics, Faculty of Science, Federal University Otuoke, Nigeria.
Enobong Joseph Oduobuk
Department of Physics, Topfaith University, Mkpatak, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
In Nigeria, the frequent loss of lives and properties due to LPG usage for cooking necessitates urgent intervention. This paper presents an Internet of Things (IoT) based detection system to monitor LPG leakage in kitchens. Key components include a solenoid valve for gas flow control, an MQ6 sensor for LPG monitoring, and an STM32F411CEU6 microcontroller, programmed in embedded C, as the central processing unit of the system. The system introduces an emergency shutdown mechanism using an MMBT3904 NPN transistor. Upon detecting a leak, the MQ6 sensor informs the microcontroller, which prompts the user with a Short Message Service (SMS) and calls, and then triggers the transistor to close the solenoid valve if the leakage poses an explosion risk, thus preventing potential disasters. Additionally, a custom mobile app allows for remote monitoring and control of LPG leakage. To address Nigeria's unreliable electricity supply, the system includes a 5V power pack, a solar panel, and a battery for continuous power supply to the system. Deploying this system will significantly reduce the risks associated with LPG leaks in kitchens across Nigeria.
Keywords: Liquified petroleum gas, internet of things, LPG leakage, STM32F411CEU6 microcontroller, MQ6 sensor, MMBT3904 NPN transistor