BoatAngel

BoatAngel is a solution, that provides rent-a-boat management and
collision prevention. It consists of a smart electronic device with a
horn, which is integrated in the boat and the current mobile
application. When a boat enters a predefined danger zone (rock, cliff,
swallow sands), the horn starts ringing in the same second. The mobile
application provides accident notifications and reporting to the boat
owner and a navigation map with the danger zones and interesting spots
to the tourist.