Development of a Display Platform of the AIS Information

AIS (automatic identification system), a new type of the radio navigation system at sea, can provide more target information than radar. It is very important how to make a desk officer intuitively observe the information so as to conveniently judge the motion tendency of the targets around own ship. We had developed a system of the AIS information display based on the platform of ENC (electronic nautical chart) by using Microsoft VC⁺⁺ software tool. The 6 bit encapsulated data from the AIS output interface were received and decoded. After being converted into ASCII code in the format, the AIS information was showed on the platform of ENC with both graphic and alphanumeric mode, complied with the international criterion. The results of a spot test show that the system has a lot of advantages including good interface and so on.