Ais Technology-based Aids To Navigation Applications Research

The invention of AIS system brings the whole new idea about the traditional Aids to Navigation(AtoN) and administration of maritime affairs, which changes them greatly in two ways. Depending on AIS system, the sailors can acquire more information about Aids to Navigation and keep safer during navigation by themselves. In the traffic management, the sailors can change from being managed by some one else to participating in management actively; on the other hand, the managing department of maritime affairs can pay much more attention on giving the ships Aids to Navigation information in stead of monitoring the ships. In a word, giving the ships service is as important as monitoring the ships.The AIS system mainly applies in avoiding collision and ship traffic management system. The AIS system offers the high real time information and accurate ship movement parameter instantly. It can offer much more information precisely and instantly than the current radar. So the AIS system can bring about the revolutionary progress in supervision of the vessels navigating over sea.The AIS network was built on the Changjiang and zhujiang in our country in the May this year, mainly applying in ship traffic management system, but there is little application in other fields. To follow up the development of international AIS system and master the application of AIS technique, this paper analyses the characteristic of AIS network, AIS information and data communication platform, studies how to improve the traditional navigation mark by AIS and how to apply the AIS in navigation mark.and recognize the importance of AIS to improve the safety of navigation by the Changjiang shore AIS construction. The construction of shore AIS system brings great reformation to the tradition navigation remark, AIS technical has wide and attractive perspectives by application in navigation remarks as follow:1,AIS AtoN or synthetic AIS broadcasts the messages by maritime 87B, 88B channel. Vessel's screen can show the messages of remark nearby. Which is better obviously than tradition remark in Aids to navigation distance and effect, So the AIS AtoN can replace and supplement tradition remark's messages.2,Using the AIS message 21, AIS AtoN may broadcast own accurate position in existence. Aids to navigation administration department can receive the remark real-time position message, monitoring if they locate in the correct position, andreform and reinforce the model of remark administration.3,vessels with the AIS equipments can get comprehensive remark messages while receiving the AIS messages from remark, can long-distance detect and distinguish remark in all kinds of conditions, AIS AtoN may reinforce and replace the expensive Racon.4, AIS AtoN can send virtual AtoN AIS messages by message 21 in some special conditions or can't make real remark in temporary need. The virtual AtoN AIS can be automatic plotted on the vessel's radar screen but it isn't existing, virtual AtoN AIS found on the AIS system platform, which has great importance to navigation safety in abnormal aid to navigation conditions.