A safety monitoring helmet is being developed for the miners to help and rescue them at times of emergencies. We have used an integrated sensor module which has various sensors such as gas sensors like MQ2 and MQ135, temperature sensor like LM35, plug and play sensor to examine the ambience of mine. The sensor datum is displayed using OLED (Organic Light Emitting Diode) display We have also designed the location module using NRF24L01 transceiver module which is used to trace the location of the miner. The integrated sensor module and the location module is connected to nodeMCUESP8266 Wi-Fi module which is installed at the mines at regular distances .This enables the miners data to be monitored from the remote base station and the values are continuously checked against the threshold and the local alert is being created with the help of the buzzer and the miner is saved with the help of the location module.

Arduino UNO Board, NRF24L01 Transceiver module, NODEMCU module, OLED Display.