Design of IOT based coal mine safety system using LoRa

The main goal of a coal mine safety system is to be built using things that speak as the data transmission channel. In coal mines, the system monitors and manages a variety of parameters, including light detection, gas leak detection, temperature and humidity conditions, and coal mine fire detection. These sensors are bundled together and put in coal mines. Thing Speak receives and analyses all sensor values in real-time. The gas is monitored regularly here, and if there are any concerns about the gas level, a bell is used to alert the workers. In this configuration, an LDR sensor detects the presence of light. The light comes on automatically and may be controlled using the LED button. An alert notification is sent to the authorized person's mailbox if a fire breaks out in a coal mine. Temperature and humidity levels are regularly checked and displayed on the serial monitor and the thing talk platform. The developed technology is primarily utilized to improve coal mine working conditions and protect workers' safety.