This paper presents a smart LPG safety and monitoring system designed to improve household safety and convenience. The system continuously detects gas leakage using a gas sensor and automatically shuts off the regulator using a solenoid valve to prevent fire accidents. In addition, a load cell is used to measure the exact weight of the LPG cylinder and calculate the remaining gas percentage. Based on daily consumption patterns, the system predicts the number of days the gas will last. A smart auto booking feature is also implemented, which notifies the user in advance when the gas level is about to finish. This helps avoid sudden gas shortages and ensures uninterrupted usage. The system is cost-effective, efficient, and suitable for modern smart homes. It enhances safety, reduces human effort, and provides real-time monitoring through a user-friendly interface.
Praveen et al. (Sun,) studied this question.