To indicates the position of the clubs of ngapatchuban Against the ship's speed and direction are sailing and data from sensors, as well as various data is recorded at the time in the past by the owner of the vessel or the relevant officials can get the data back.
To indicate the current position of a ship. Threat speed and direction of a moving boat. And data from sensors As well as data logging. By the time past. The owner of the vessel or the authorities concerned can browse historical data as needed.
To inform the current position of the boat. Mobiles and the direction of the ship's sail, and information from the sensors, as well as the record information. By the time in the past.