Relational database-based construction method for air traffic control system GIS storage and access
A technology of storage access and construction method, applied in the field of terminal air traffic control system GIS data storage, DAO persistent access construction field, can solve the problems of lack of security, unsolvable problems, incomplete air traffic control GIS data, etc., to reduce development and the effect of system maintenance cost, scalability improvement, and operational performance improvement
Inactive Publication Date: 2009-11-04
WISESOFT CO LTD
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Problems solved by technology
However, due to the inherent weakness of the file system, many problems cannot be solved
For example, the air traffic control GIS data has rich attribute information, and they meet the requirements of relational databases; the air traffic control system data has high requirements for correctness and integrity, but it is not easy to check the data domain integrity constraints, referential integrity constraints, and unique integrity constraints in the files. Moreover, it is difficult to achieve transaction processing, resulting in incompleteness and errors of air traffic control GIS data; and it is difficult to realize multi-user distributed processing of files, lack of security, and it is difficult to meet the requirements of the current air traffic control system interconnection
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[0032] Embodiments are given in conjunction with the accompanying drawings to further describe the present invention in detail. From figure 1 , figure 2It can be seen that the relational database GIS storage design, especially including the design of air traffic management GIS spatial information storage, air traffic management GIS attribute information storage and the binding of spatial information attribute information is very important. Its data model of described relational database GIS storage design adopts tree structure: GIS model (GISModel), layer (Layer), graph group (Group), graphic element (Unit), on inheritance structure, above all tree node interfaces Both inherit from the GISTreeNode interface and define the access interface of the tree node, the database query and persistence interface, the display operation interface, and the concrete class that implements the user-defined drawing (Draw) interface for the user mouse. According to the hierarchical structure o...
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The invention discloses a relational database-based construction method for the air traffic control system GIS storage and access, and relates to the technical field of the integration of the geographic information system GIS and the computer database. The method overcomes the inherent disadvantage of the storage and access to the air traffic control GIS data in a file mode through the realization of the following technological steps: design of an air traffic control database, realization of a database access interface through JDBC, DAO durability logic realization, logic packaging of air traffic control GIS service, and DAO application reveal interface. The method graphically supports the binding of more complicated graphs and space graph information to the air traffic control attribute information. The DAO-based data access has excellent cross-platform access control ability and simultaneously facilitates the expansion and persistent improvement. The method has high precision in the storage and access of the air traffic control system GIS of the relational database and high access flexibility, establishes a unified storage and access mechanism, ensures the consistency of the space data access between processes, reaches the requirements on interconnection and intercommunication of the air traffic control system, and provides powerful fundamental guaranty for the safe running of a spacecraft.
Description
technical field [0001] The present invention relates to the technical field of the combination of geographic information system (GIS) and computer database, in particular to the construction method of GIS data storage and DAO persistent access of terminal air traffic control system based on relational database. Background technique [0002] In the traditional terminal air traffic control system (ATC), GIS data such as air routes, airports, airspace, low-altitude warning areas, cloud penetration maps, etc. generally use the file system as a persistent data source, because the ATC GIS data in the system memory has Object-oriented features, strong combination and inheritance relationships, and easy binding with air traffic management business data, it is relatively simple and practical to store and access air traffic management GIS data in the form of files. However, due to the inherent weakness of the file system, many problems cannot be solved. For example, the air traffic c...
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IPC IPC(8): G06F17/30
Inventor 熊运余曾凡光吴鹏
Owner WISESOFT CO LTD