Implementation of Environmental Parameters Monitoring and Alert System for Underground Mining Using Internet of Things with LoRa Technology

Underground mines have a challenging environment and are affected by environmental factors such as toxic and flammable gases that affect productivity and safety. In response to the mining industry's challenges, wireless communication technology is widely adopted to monitor underground environmental parameters, track mine machinery, and workers, and establish remote communication systems between transmitter and receiver. Variation in mine environmental parameters leads to gas accidents and damage to the mine site structure. In this paper, Sx1278 LoRa 433 MHz transceiver module and ESP32/ESP8266 Wi-Fi Module are integrated with DHT 22 temperature sensor implemented to collect real-time temperature and humidity parameters. The system raises an early warning of any hazardous events. A mine safety and alert system are proposed for the underground mine site. The developed LoRa-based system can deploy in an underground mining area to monitor the real-time environmental parameters and to avoid dangerous gas accidents.