Smart Mining Helmet: An IoT-Based Automated Safety Monitoring, Hazard Detection, and Worker Protection System

Abstract: The Smart Mining Helmet is an innovative Internet of Things (IoT)–based system designed to improve safety and real-time monitoring in hazardous underground environments. It integrates a variety of sensing technologies to detect dangerous gases, track miner health, and provide continuous environmental awareness with minimal manual effort. The system includes a durable helmet equipped with gas sensors, temperature and humidity modules, a heartbeat sensor, and an ESP8266 microcontroller. When a miner enters a work zone, the sensors measure gas levels, thermal conditions, and vital signs to record critical safety information. This data is instantly transmitted to a cloud platform and a monitoring interface for immediate access. Alerts are generated when gas concentrations exceed safe limits, when temperature or humidity becomes unstable, or when abnormal heartbeat values are detected. The gas sensors monitor early traces of harmful emissions, while the environmental modules help maintain awareness of unsafe atmospheric shifts. The interface displays live data such as gas intensity, miner identification, temperature, and heart rate. Overall, the Smart Mining Helmet enhances worker protection, reduces risk, and supports rapid emergency response by combining automation, sensing, and real-time analysis into a single IoT-driven safety solution.