A wearable personal device that, in the event of a man overboard:
Instantly triggers an alarm that alerts the crew and connects with on board technology to mark the event position
Sets in motion tracking and motion procedures
Acts as a beacon
The idea is to have all crew members wearing a wearable device. When a crew member leaves the signal range (the boat), an alarm is automatically set off (to tell the other crew members that there is a Man Overboard) and then the wearable emits a signal which the ship can track to recover the crew member.