A SMART HELMET FOR COAL MINERS

Smart helmet is a device which can be used for coal miners safety. The device can be used to monitor the safety standards of the working conditions for coal miners. This device detects the temperature, humidity, harmful gas concentration, vibration. The data is analyzed and sent to the control room and the control room decides which action to take based on the parameters sent. This paper uses LoRa communication technology and GSM to send and receive information, Arduino to process the information. sensors such as MQ02, DHT11, IR sensor, vibration sensor to get the parameters. The main objective of using LoRa communication is to make sure the communication is strong even in the longer ranges where Zigbee runs out of range. The range provided by Zigbee is up to 300 meters whereas the range for LoRa can be up to 5 kms depending on the traffic in that area. The Arduino microcontroller processes the information received from the sensors and sends the information via LoRa and GSM. proper action can be taken by the control room and the workers can be evacuated or the conditions can be improved