ONLINE GAS MONITORING SYSTEM An Online Gas Monitoring System is a system designed to continuously monitor and detect the presence of gases in an environment, such as industrial areas, homes, or commercial spaces. This system usually includes various sensors and a centralized system for real-time monitoring and alerting of hazardous gas levels. It\'s widely used for safety purposes, ensuring the detection of gases like carbon monoxide (CO), methane (CH4), propane (C3H8), and other potentially harmful gases. Components of an Online Gas Monitoring System: Gas Sensors: These sensors detect specific gases in the environment. They can be electrochemical, metal-oxide semiconductor (MOS), infrared, or catalytic sensors. Each sensor is typically tuned to detect a specific gas or a group of gases. Microcontroller or Microprocessor:A central unit that processes the data from the gas sensors. Examples include Arduino, Raspberry Pi, or ESP32. It handles tasks like data processing, control, and sending notifications. Wireless Communication: The system often uses wireless communication technologies (Wi-Fi, Bluetooth, Zigbee, or LoRa) to transmit sensor data to the cloud or a centralized monitoring system. This allows remote monitoring and real-time alerts. Cloud Platform or Server:Cloud-based storage is used to store sensor data and historical trends. The cloud platform processes and analyzes data, sending notifications/alerts when hazardous gas levels are detected. Users can access the monitoring system via a web or mobile application. Alarm and Alert System:Once dangerous gas levels are detected, the system triggers alarms (audible, visual, or mobile app alerts) to notify individuals about the risk. Alerts can be customized based on different thresholds for each type of gas. Power Supply:The system can be powered by batteries, mains power, or renewable energy sources such as solar panels. Power consumption should be low for long-term operation, especially in remote locations. Features of an Online Gas Monitoring System: Real-time Monitoring: The system provides continuous monitoring of gas levels and instantly alerts if the concentration exceeds predefined safety limits. Data Logging: Historical data can be logged and stored for future reference. This is especially useful for compliance with safety regulations. Multiple Gas Detection: The system can detect various gases simultaneously and monitor their concentration levels. Remote Access: Users can monitor the gas levels remotely through a smartphone or web interface, allowing for instant reaction in case of danger. Automatic Shutdown: In some systems, dangerous gas levels can automatically trigger safety measures like shutting off gas lines or activating ventilation systems.