GPS satellite positioning + lbs base station positioning double positioning, through Lora technology, to ensure accurate and stable real-time positioning in the mine
Set up a safety fence and send an alarm to the mobile terminal as soon as the wearer exceeds the safety range
At the mobile end, you can view the historical track of the wearer at any time, and effectively grasp the historical track of the wearer
When the miner encounters danger and presses SOS key, the mobile terminal will immediately receive the alarm notice and the alarm position of the alarm person
