Data format conversion method and system

Abstract

The invention discloses a data format conversion method and device. The method comprises the steps that a data format conversion system calls a local database, static resources in the local database are initialized, and a source directory, a target directory, a format conversion template file and a screening condition are acquired; the data format conversion system acquires at least one source file, of a set type, in the source directory; the data format conversion system reads source data in the at least one source file and screens out source data meeting the screening condition in the sourcedata; the data format conversion system calls the format conversion template file, data format conversion is conducted on the screened source data to generate target data, and the target data is stored into the target directory. According to the method, space data formats can be converted according to different systems and user requirements.

Description

technical field [0001] Embodiments of the present invention relate to data format conversion technologies, and in particular, to a data format conversion method and system. Background technique [0002] In the information society, a large amount of data from different sources is generated and stored in different places every moment. In the network environment, information should be distributed and processed in different software, and can be released in real time on the network. Different geographic information systems (Geographic Information System or Geo-Information system, GIS) systems have different understandings, description methods, conceptual models, data structures, and implementation methods for various spatio-temporal phenomena, and each has its own advantages and limitations. When implementing a new application function, first consider whether the existing data can be used, which involves the conversion of data. Some commercial GIS software manufacturers design ...

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Problems solved by technology

[0004] The data interoperability specification has brought a new model for multi-source data integration, but this model has certain limitations in application: First, in order to truly realize the interoperability between data in various formats, each format needs to be The host software implements the data access interface according to a unified specification, which is not realistic for a certain period of time; second, when a software accesses the data format of other software, it is realized through the data server, and the data server is actually the host of the accessed data format software, that is to say, the user must have both GIS software and run them at the same time in order to complete the data interoperability process

Third, the OGC standard takes more account of the spatial data service software and spatial data client software using the OpenGIS protocol, and there is still a lack of standard specifications for the processing methods of a large number of non-OpenGIS standard spatial data formats that have existed in history

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