A method and system for data exchange of marine geographic information based on xml
A geographic information data and geographic information technology, applied in geographic information databases, structured data retrieval, semi-structured data retrieval, etc., can solve the problems of single data use, inconsistent data format, and data islands, etc., and achieve easy-to-understand Effect
Inactive Publication Date: 2020-07-10
WUHAN UNIV
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Taking my country as an example, since the implementation of marine surveying and mapping is assigned to different regions and different surveying and mapping main business departments, the measurement hardware equipment and software systems of each unit are quite different. Data formats cannot be unified, data islands, and data uses are single, not to mention the exchange and integration with other geographic information
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[0034] When the technical solution of the present invention is specifically implemented, it can be run by those skilled in the art using computer software technology. In conjunction with the drawings and codes, the specific description of the embodiments of the present invention is provided as follows.
[0035] Such as figure 1 As shown, the embodiment provides an XML-based marine geographic information data exchange method, which is not only applicable to the inherent geographic information elements in marine surveying and mapping, but also applicable to other data exchange conforming to the data model of marine geographic information elements, specifically including the following step:
[0036] Step 1, UML 2.0 technology is used to design a general geographic information data model. Based on this model, the characteristics of marine geographic information can be abstracted, mainly involving the exchange coding format of three important features of elements, attributes, and ...
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The invention provides an XML-based marine geographic information data exchange method and system. The method comprises the following steps of: 1, designing a general geographic information data modelby adoption of a UML2.0 technology, and realizing marine geographic information feature abstraction on the basis of the model; and 2, defining an XML mode of a marine geographic information data model, encoding and expressing the geographic information data model in the step 1 in an XML mode, defining an encoding rule of a data exchange format, and carrying out encoding to realize a specific marine geographic information exchange format. According to the XML-based marine geographic information data exchange format, a consistent format can be provided for measurement data to production data, production data to data services and data services to terminal users of marine geographic information. The method is not only capable of satisfying production demands in marine charting, but also can be used for data exchange of marine and land information.
Description
technical field [0001] The invention belongs to the technical field of marine surveying and mapping and geographic information systems, and in particular relates to a data exchange method suitable for marine geographic information, which is embodied as a UML data model and an XML coding mode of a data exchange format. Background technique [0002] Marine geographic information is an important extension of geographic information in the marine field. Similar to the development model of terrestrial geographic information, marine geographic information is evolving towards productization and service. In order to promote the further development of marine geographic information, the International Maritime Organization, the International Association of Navigational Lights, and the International Maritime Organization have successively deployed marine geographic information applications and services from multiple aspects and levels such as data standards, infrastructure, products, sof...
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IPC IPC(8): G06F16/29G06F16/83
Inventor 万晓霞段晶
Owner WUHAN UNIV