3. A REVIEW ON MINE SAFETY SYSTEM USING IOT

Today, it is extremely difficult to keep mine workers safe. A few fundamental problems, such as the working environment and its delayed effects, leave a miner's health and life defenceless. A new and inventive approach is needed to increase mining profitability, reduce costs, and keep miners' safety in mind. The suggested system has two sections: one to track the status of the mineworkers, and the other t o track everything. Air pollution in the mine worker area is mostly caused by outflows from integrated gases and particulate matter emissions. S uch as Sulphur dioxide (SO2 ), Nitrogen dioxide (NO2 ), Carbon monoxide (CO), and so forth we are utilizing the smoke sensors to monitor the particular gas level in the mine.To monitor the concentration level of unsafe gases, semiconductor gas sensors are utilized. If any gas sensor value goes beyond the threshold range at that point the microcontroller will allow an alert to the person through a buzzer and sends the information to the monitoring section module and in the monitor received data will be uploaded to the webpage through IoT I. I NTRODUCTION This chapter acts as the thesis's introductory chapter. It discus ses safety concerns and communication issues in underground mines. The necessity of system detection and real time monitoring is also briefly mentione It also outlines the thesis' goals and organisational structureFirst paragraph When it comes to the wellbeing an d safety of employees, underground mining operations are a risky business. These dangers result from the va rious methods used to extract the various minerals.The risk increases with mine depth. These safety concerns ar e really ser ious, particularly when it comes to the coal sectors. Consequently, whether mining is done for coal or any other resource, worker safety should always be a top priority. P roblems of ventilation and the potential for collapse. However, the utilization of heavy machinery and the methods performed during excavations result in safety risks in all types of mining.