Rancang Bangun Sistem Deteksi Kebocoran Dan Monitoring Berat Tabung LPG Berbasis IoT Dengan Sumber Daya Panel Surya

Abstract

The use of LPG gas as a source of household energy carries the risk of leaks, which can pose a safety hazard if not detected early. In addition, users often find it difficult to monitor the availability of LPG gas in cylinders. Therefore, this study designed and built an Internet of Things (IoT)-based LPG cylinder leak detection and weight monitoring system that is capable of providing automatic and real-time warnings. This system uses an MQ6 gas sensor to detect LPG gas leaks and an HX711-based load cell sensor to measure the weight of the LPG cylinder. ESP32 is used as a controller for input devices such as reading data from sensors and processing data to control output devices such as solenoid valves and buzzers, as well as sending data to a web server via a localhost network. The received data is stored in a database and displayed on a dashboard in the form of a website that can be accessed using a PC or smartphone. In addition, there is a notification system via Telegram as a remote warning when a gas leak occurs or the LPG cylinder is almost empty. Test results show that the system is capable of detecting LPG gas leaks effectively, automatically closing the solenoid valve, and providing warnings via buzzer, website dashboard, and Telegram notifications. The load cell sensor also shows cylinder weight readings with 0% error.