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Metadata-based spatial analysis automatic calculation method

A technology of spatial analysis and automatic calculation, applied in the field of surveying and mapping geographic information, to achieve the effect of lowering the threshold of use, saving storage space, and simplifying the calculation operation process

Active Publication Date: 2021-10-19
速度科技股份有限公司
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  • Application Information

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Problems solved by technology

But at the same time, there are some problems in this method, that is, users need to understand the structure of feature data, the input and output parameters of analysis methods, and the use of platform modeling tools, which has a certain learning cost

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  • Metadata-based spatial analysis automatic calculation method
  • Metadata-based spatial analysis automatic calculation method
  • Metadata-based spatial analysis automatic calculation method

Examples

Experimental program
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Embodiment

[0046] Example: such as figure 1 As shown, the automatic calculation method of spatial analysis based on metadata includes the following steps:

[0047] S1: Construct element and analysis metadata database;

[0048] The elements and analysis metadata in the step S1 include element metadata and service metadata, and the element elements include storage address, collection time, area name, data geographic spatial range, geographic spatial reference information, data source, field description and Geospatial data category; the service metadata includes service address, parameter number, parameter name, parameter type, parameter description, output type, function description and service category; the specific steps of the step S1 are:

[0049] S11: Record the metadata of each element data according to the element data metadata structure, and store it in the database;

[0050] S12: Record the metadata of each analysis service according to the service metadata structure, and store ...

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Abstract

The invention discloses a metadata-based spatial analysis automatic calculation method. The method comprises the following steps: S1, constructing an element and analysis metadatabase; S2, constructing a dictionary library according to administrative division names, basic element names and analysis functions; S3, inputting a query text, performing word segmentation extraction and word segmentation analysis on the query text, decomposing a series of characters into independent and recognizable characters according to a certain rule, and obtaining word segmentation results of a plurality of keywords; S4, performing step-by-step matching based on one word segmentation result to obtain a service of the matched word segmentation result, and recording the service as FS; S5, obtaining element data based on the remaining word segmentation results and service matching, and recording the element data as FD; and S6, performing analysis and calculation in combination with FS and FD, namely performing calculation by taking the corresponding field value of the selected element data as an input parameter of an analysis function to obtain a final calculation result, and outputting the calculation result.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping geographic information, in particular to an automatic calculation method for spatial analysis based on metadata. Background technique [0002] With the construction of urban big data, the existing data centers have collected a large amount of geospatial data, with various types of data and a huge amount of data. How to effectively use these rich data resources has become an important issue. For professional algorithm designers, data mining algorithms can be used to mine and extract valuable information from various types of data, while for ordinary users, they rely on the open resource interface supported by the corresponding information system, due to the amount of data Huge and related spatial analysis methods have a certain threshold of use, which limits the effective use of geospatial data by ordinary users to a certain extent. At present, the commonly used method is that the da...

Claims

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Application Information

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IPC IPC(8): G06F16/33G06F16/38G06F16/387G06F40/242G06F16/29G06F16/9537
CPCG06F16/3334G06F16/3347G06F16/38G06F16/387G06F40/242G06F16/29G06F16/9537
Inventor 冯建亮李俊刘婷婷
Owner 速度科技股份有限公司
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