Abstract:
The Real-Time Monitoring and Safety System for LPG Gas Usage in
Household Environments is a crucial device designed to ensure the safety of individuals
and properties by detecting potential leaks of LPG (Liquefied Petroleum Gas) gas. This
abstract outlines the system's architecture and functionalities. The system utilizes a
PIC16F877A microcontroller interfaced with a USART (Serial Communication
Interface) to facilitate communication. It incorporates a load sensor to accurately
determine the percentage of LPG gas remaining in the cylinder by subtracting the weight
of the empty cylinder from the total weight. This information is displayed on an attached
LCD, providing users with real-time updates on gas levels. In addition to monitoring gas
levels, the system features an LPG sensor module that detects gas leakage. Upon
detection, the microcontroller triggers an audio alert through a buzzer and displays a
warning on the LCD screen. Furthermore, for enhanced safety measures, a relay
disconnects the household AC power supply in the event of a gas leak. The
microcontroller is programmed using embedded C in MPLABX IDE with XCS compiler.
Powering the circuit is achieved through a power supply unit comprising an LM7805
regulator IC, which delivers a regulated output of 5V DC from a 9V DC adapter. In
summary, this comprehensive system offers real-time monitoring and safety features for
LPG gas usage in household environments, ensuring prompt detection and mitigation of
potential hazards. Its integration of multiple sensors and communication interfaces makes
it a reliable solution for enhancing safety and peace of mind in residential settings
