Zigbee Based Safety Monitoring System

The main objective of this project is protecting mine workers from harmful gases. In this project a warning message will be sent to concerned manger, if any harmful gases are detected. Here, gas sensor is used to detect the gas. Zigbee is used to transfer the data from the analog sensor to care taker.   The voice system with both microphone and speaker transforms into digital signal and effectively communicate wirelessly with the ground control centre computer.