| As one of the important hinges of container loads and unloads process, Container yard is complex department in container operational management because the operation in it is various. Its managerial degree directly influences operation rate and efficiency of whole quay. The technical approach to efficient operational management of container yard through research on visualization of yard has been discussed in this thesis.As a cross-subject arisen in recent years, Visual reality (VR) is paid widely attention in computer field, is a visual computer system in which people can establish and experience visual world. The greatest advantage of VR lies in that people can directly observe 3-dimensional (3D) world and carry through man-machine alternation. Through establishment of a 3D database real-time track container production dynamic control system, people can get actual change of yard status continuously and alternate information with visual yard on screen, thereby achieving visual management of container yard.Chapter one of this thesis has mainly analyzed the development of the current visual system of container yard, and pointed out realistic meaning and important technology of the research.Chapter two has introduced some technical foundation of container yard visual system. It includes visual reality technology, the computer graphics technology, and software development approach facing the target, developing technology of visualization. These technologies offer the theoretical foundation for the research in this thesis.Chapter three has discussed modeling works of this system, it includes geometrical modeling and database modeling. In aspect of geometrical modeling, the characteristic and systemic formation of modeling software named Creator hasbeen introduced in detail, and the application of modeling technology has been concretely showed in the process of modeling of 3D scene. In aspect of database modeling, the fields of tables have been selected according to function of visual yard, in order to drive 3D yard.Chapter four has mainly analyzed the simulation process of visual yard. It has introduced approach to achieve visual yard through software named Vega. In interface environment named Lynx of Vega, users can define all kinds of preferences, initializing some properties of program. For Vega hasn't object-oriented ability, programmer must recur to VC.NET and call function of Vega to carry through secondary exploitation of system. This thesis has mainly researched calling of database, embedding of Vega, real-time displaying of 3D scene and combining between query function and estimate function and so on.Chapter five has mainly introduced detailed exploitation process of visual yard system and related content of driving visual yard. This segment emphasize the two aspects that predefining of application and key question of secondary exploitation.Finally, an application system of container visual yard has been achieved, which can automatically render 3D scene according to real-time database information, can query information of containers in yard according to different conditions, can estimate scheme of loading container of export voyage. So, users can observe and control yard expediently, predict effect of process of loading and modulate scheme in time. At one time, users can transfer angle of view through clicking corresponding key on keyboard, thereby alternating with 3D visual scene.The application system achieved in this thesis has been applied in the second company of Tientsin port already. It has been proved by practice that this visual yard system has many advantages, and some question with regard to modeling of visual scene and real-time process means have been researched more, which arealso development direction of digital port.Shu Fan (Machinery design and theory) Directed by Mi WeiJian. Xu ZiQi...
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