Unlock instant, AI-driven research and patent intelligence for your innovation.

A Fast Storage and Query Method for Irregular Grid Data

A query method and fast storage technology, applied in geographic information databases, structured data retrieval, special data processing applications, etc., can solve problems such as difficult query and extraction for users, difficult data management, large files, etc., to achieve convenient and effective management, The effect of improving efficiency

Inactive Publication Date: 2019-03-26
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Queries and extractions are often difficult for users due to the large size of the files
However, the application of traditional database (especially relational database) technology for management will inevitably fall into the problem of large tables, that is, as the amount of data continues to grow, data becomes more and more difficult to manage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Fast Storage and Query Method for Irregular Grid Data
  • A Fast Storage and Query Method for Irregular Grid Data
  • A Fast Storage and Query Method for Irregular Grid Data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] A fast storage and query method for irregular grid data, comprising the following steps:

[0052] 1) Steps for distributed storage of grid big data, the method for parsing and storing grid big data in the present invention see figure 1 ;

[0053] 1.1) Separate grid data into grid metadata and grid attribute data;

[0054] The metadata content of the irregular grid includes: [grid ID, grid range, XYZ direction coordinate sequence, data loading order identification];

[0055] in,

[0056] The grid ID is generated by the grid generation time and its type code. The XYZ direction coordinate sequence records the projec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a rapid storage and inquiry method of irregular grid data. The method comprises the following steps: (1) a grid big data distributed storage step; (2) an irregular grid data loading step; (3) an irregular grid data inquiry step; (4) a grid data splicing step; and (5) a data exporting step. According to the rapid storage and inquiry method, the data inquiry efficiency is improved through a distributed storage manner; and grid big data can be conveniently and efficiently managed on the basis of the method disclosed by the invention.

Description

technical field [0001] The invention relates to data storage technology, in particular to a fast storage and query method for irregular grid data. Background technique [0002] In geoinformation science and technology, earth exploration data are generally stored in grid format files. Due to the large size of the files, it is often difficult for users to query and extract them. However, the application of traditional database (especially relational database) technology for management will inevitably fall into the problem of large tables, that is, as the amount of data continues to grow, data becomes more and more difficult to manage. In geophysical survey data, irregular grid data are often used. That is, the unit size of the grid is inconsistent, so it is difficult to use a standard grid file format similar to grd for storage, and the data can only be recorded line by line in the form of (x-y-z-data). In addition, for three-dimensional irregular grids, the recording order...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29
CPCG06F16/182
Inventor 余翔宇
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)