The Application of IsatData Pro Service in Data Communication of Oceanic Buoys

The IsatData Pro service provide bidirectional messaging services between the terminal and the IsatData Pro Gateway via Inmarsat satellite services. The working frequency of it is in L band, which provides a good ability to resist rain and snow attenuation. Even in bad weather, it can ensure reliable communication. Compared with the traditional M2M communication service, The IsatData Pro provides a larger capacity and faster data communication capability and it provides two modes of communication: terminal-to-network communication and terminal-to-terminal communication. The IDP terminals are satellite terminals that use the IsatData Pro service. There are several terminals available for selection, among which IDP690 is suitable for buoy system because of its small size, light weight and low power consumption. A marine buoy is designed by using IDP690 as communication unit. The test data show that the data transmission of the buoy is stable and the delay is small, which can meet the data transmission requirements of the buoy.