Ship information sharing device, ship information sharing method and ship information sharing system

A ship information sharing method, comprising steps of:

• serially acquiring navigational data according to navigation of a ship, the navigational data detected by a detection apparatus mounted on the ship;
• acquiring a channel capacity of a channel to a ship information gathering device;
• changing, according to the channel capacity, a frequency to include the navigational data into a transmission data set serially transmitted to the ship information gathering device;
• and
• transmitting the transmission data set to the ship information gathering device.

A ship information sharing system, comprising:

• a ship information gathering device;
• a detection apparatus mounted on a ship and configured to serially generate navigational data according to navigation of the ship;
• a ship information sharing device configured to acquire a channel capacity of a channel to the ship information gathering device, and change, according to the channel capacity, a frequency to include the navigational data into a transmission data set serially transmitted to the ship information gathering device;
• and
• a communication apparatus configured to transmit the transmission data set to the ship information gathering device.