| For the purpose of avoiding the collision accidents of ships efficiently at sea, this thesis universalize the application of computer and the development and the application of the technology of Expert System and the advantage of AIS , this thesis designed and implemented a kind of Expert System for Collision Avoidance based AIS. The main research work include several parts, which will be represented as below:(1)By analyzing the advantage of AIS data from that of ARPA, based on the collection and study of research essays published domestically and internationally and the documents of IMO on the AIS technology. This thesis advanced the assume that AIS can be exerted in intelligent navigation.(2)In the process of the system study, the knowledge in the domain of ship collision avoidance is analyzed and the collision mechanism, process and the tactic are studied firstly. This thesis designed a kind of knowledge base for collision avoidance based standard rules for collision avoidance and also this thesis designed a kind of forward illation inference with developmental knowledge. Finally, using Visual C++, the software of Ship Intelligent Avoid Collision Expert System are designed and developed, which has friendly visible interface. The can be displayed on Electronic Chan.(3)The design and implementation of Expert System for Collision Avoidance Based AIS takes advantage of AIS sufficiently, and it is mainly based on Expert System. It is a kind of Expert System for collision with intelligence. This system can analyze the encounter of two ships at sea, and it can offer a reasonable precept to avoid collision., which settle the collision problem effectively and improve the navigation safety. |