A Modular Approach to Gas Monitoring: Design and Implementation with SCADA Integration

This article presents the design and development of a gas acquisition and control system utilizing the PIC16F877 microcontroller in conjunction with an MQ2 gas sensor and a Type K thermocouple for temperature measurement. The primary objective is to offer a reliable and cost-effective industrial solution for local gas detection and management. The development process followed a structured methodology comprising several key phases. Initially, simulations were performed to evaluate the system’s technical feasibility and behavior before proceeding to hardware implementation. Experimental testing on dedicated test boards was then conducted to verify the functionality of each individual component. Emphasis was placed on modular integration, culminating in the creation of a compact and optimized electronic module using professional PCB design software.A notable innovation of this project is its scalability. Beyond hardware development, integration with a SCADA system was proposed to enable centralized monitoring and control, thereby enhancing industrial applicability and alignment with modern automation frameworks. This proposal was implemented and validated at a gas bottle filling site in Algeria, demonstrating its practical relevance and effectiveness in a real-world industrial environment.