| Along with the accelerating process of global economic integration, the modern harbor is becoming more and more prominent as the international trade hinge and key node of multi-type transport. The traditional handmade chart, manual management by memories and statistics have a low efficiency which is difficult to follow the fast development and request of the mass data management. Therefore, the port management informationization must be realized to enhance the decision-making ability and improve the management efficiency.This article takes the informationization of Haitian Port in Xiamen as the application background, researches the key technologies of integrated port monitoring information system. Its primary coverage includes the following four aspects:Firstly, the database is established for Haitian Port Monitoring Information System(HPMIS). The data requests of HPMIS are analyzed, the database-designing process is researched and implemented, and the application and maintenance of the database are discussed.Secondly, the special effects in three-dimension scene of Haitian Port is studied. In view of the fidelity and real-time request, the corresponding effective rendering algorithm of terrain, cloud and shadow are proposed.Thirdly, the network architecture and communication protocols of HPMIS are designed. The connection of heterogeneous networks is implemented basing on TCP/IP and Winsock, the communication protocols are designed specificly for message exchange.Finally, the prototype system of HPMIS is designed and implemented. An open system framework is designed to satisfy the multi-kinds of principles in data exchanging; the 2D and 3D clients of HPMIS are implemented by modular program designing which will improve the system stability.The establishment of HPMIS strengthens the informationization level of port management, improves the scientific policy-making ability, and can meet the information-based developing needs of port construction which is of great application value. |
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