AIS-Transponder für Schiffe (Klasse A)
AWAIS-1 Shanghai Avionics Corporation

The AIS system contains information acquisition and processing , radio data transmission and electronic chart information system. It use SOTDMA technic to divide time into “ time-frame ” and divide each "time-frame" to several time slot. Each station will choose free time slot automaticly and sending related informationg with VHF sending machine. All ships or stations which installed the AIS systems will show the informations on the display after receiving them and sending safety informations as the requirements. It is the bridge of informations between ship and ship, ship and station. And it is also the important part of ship traffic control. The primary function is to avoid the crash of ships, improve water carriage traffic safety, and offer ship navigation informations to the water carriage management to make harbor frontage management easy.

AWAIS-1 system is made up of AIS host computer and MKD display unit.