Double positioning of GPS satellite positioning and LBS base station positioning, ensuring the accuracy of both indoor and outdoor positions
Set up a safety fence and send an alarm to the mobile terminal as soon as the wearer exceeds the safety range
Through the mobile terminal, the company can view the historical track of the ship at any time, and effectively grasp the historical track of the ship
When the ship is in danger, press the SOS key, and the mobile terminal will immediately receive the alarm notice and the alarm position of the alarm person
