【作者】 杜长河；

【导师】 翟世奎；

【作者基本信息】 中国海洋大学 ， 海洋地质， 2008， 博士

【摘要】 随着我国市场经济和全球贸易的快速发展,海上交通也发展迅速,船舶数量及船舶速度都不断提高,导致海上交通密度也不断增加,给船舶避碰、港口交通管理和航行安全提出了新的要求。但现有的通信导航设备存在着很多的局限性,同时又由于海上交通数据具有更加复杂的特征,因此需要一个更科学高效的空间数据模型来存储和组织管理。传统的AIS系统存在着覆盖范围小、指挥协调能力差等缺点,需要针对具体的应用需求进行改进和扩展。数据模型是GIS应用系统建设的核心和基础,移动AIS数据模型的建立可以为GIS在海上交通行业的应用奠定基础。本文首先运用面向对象的建模方法和UML建模语言,以移动GIS和空间数据模型理论为基础,在面向对象理论的基础上进行改进和扩展,提出了一个可操作的、适用于关系数据库和对象关系型GIS的面向对象的移动GIS数据模型,更好地解决了移动GIS空间数据的存储和检索问题。在此基础上,通过对AIS与GIS间相互集成关键技术的研究,解决了两者间数据转换以及通信的问题。将其应用理论及技术研究的成果,通过对近海船舶管理对象进行抽象与分析,建立了近海船舶管理移动AIS概念模型、数据库结构模型、逻辑结构模型和模型的功能模块,使其能够反映近海船舶管理的基本网络特征和移动特征,解决了近海船舶管理中的动态性、实时性以及可视化等问题,从而对理论研究进行验证。最后通过近海船舶管理信息系统的设计与原型开发,对模型理论进行了进一步的验证和应用,并设计出一套具有示范意义的近海船舶管理信息系统架构。本文的主要创新点在于:(1)提出了一种以“面向对象技术”来描述、表达移动GIS空间数据的方法,更好地解决了移动GIS空间数据的存储和检索问题。(2)首次提出了“移动AIS”的概念,就移动GIS与AIS两者间的集成方法进行了研究与论证。(3)建立了近海船舶管理移动AIS的数据模型,为AIS的新型应用提供了一个先进的、同时又具备实用性和可操作性的数据模型。(4)在前述基础上,设计实现了一套近海船舶管理信息系统的软件原型。更多还原

【Abstract】 Along with the quick development of market economy in China and the international trade, the maritime traffic has also prospered, with both the number and the speed of the ships increasing continuously. The growing maritime traffic density poses great challenges to the avoidance of ship collision, the management of port traffic and the navigation safety. However, the current telecommunication and navigation system has many limits. The complexity of maritime traffic data demands for a more efficient and reliable spatial data model for effective data storage and management. The traditional AIS system is severely limited in its coverage and coordinative capacity. Improvement and expansion are urgently needed to cater for specific application requirements. Mathematical model is the core and base for the construction of GIS system. A comprehensive mobile AIS mathematical model is to lay a solid foundation for the application of GIS system in maritime traffic.This essay is to utilize the object-oriented modeling tool and UML modeling language to improve and expand the current mobile GIS system and the spatial mathematical model within the framework of the Object-oriented Theory. The objective is to present an operable and object-oriented mobile GIS mathematical model that is compatible to the relational database and object-relation-based GIS. This new model is to largely facilitate the storage and retrieval of mobile GIS spatial data. Further research has also been conducted on the integration of AIS and GIS systems, which realizes the data exchange and communication between the two systems. The application of abovementioned theories and technical research results on the managed offshore ships has generated such yields as the Mobile AIS Conception Model for offshore ships management, the Database Structure Model, the Logic Structure Model and other functional modules for those models. The new model may aptly cater to the basic network characteristics and mobility of the offshore ships management and provide a reliable platform for the dynamic, real-time and visualized management of offshore ships. Last but not the least, a new offshore ships management information system has also been designed and developed which not only functions as a testament to the new model but also gives rise to a highly applicable and exemplary Offshore Ships Management Information Software.The main innovative points of this article lie in the following:(1) It suggests a method using "object-oriented technology" to describe and express the mobile GIS space data, which better addresses the mobile GIS space data storage and retrieval problems.(2) It puts forward first time the "mobile AIS" concept and makes research and demonstration to the method for integration between mobile GIS and AIS.(3) It builds up the data model for offing shipping mobile AIS management which serves as an advanced, practical and workable data model for new application of AIS.(4) Taking the above conditions as the base, we have designed and implemented a software prototype for offing shipping management information system.更多还原