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Data retrieval method and device based on spatial coding

A spatial data and data retrieval technology, which is applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as low retrieval efficiency and redundant HBase data volume, and achieve the effect of improving retrieval and analysis efficiency

Inactive Publication Date: 2018-12-21
GUANGDONG SOUTH DIGITAL TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to, aiming at the deficiencies in the above-mentioned prior art, provide a data retrieval method based on spatial coding and a data retrieval device based on spatial coding, to solve the problem of using the traditional method of building a spatial index in HBase for spatial data retrieval In addition, it also solves the problem of data redundancy in HBase

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  • Data retrieval method and device based on spatial coding

Examples

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no. 1 example

[0031] figure 1 It is a schematic flow chart of the data retrieval method based on spatial coding provided by the embodiment of the present application. The method can be executed by a computer, server or other equipment, but is not specifically limited. Such as figure 1 As shown, the data retrieval method based on spatial coding includes:

[0032] S101. Obtain spatial data to be retrieved.

[0033] It may be that the user inputs the spatial data to be retrieved through the retrieval interface.

[0034] S102. Convert the spatial data to be retrieved into coded values ​​to be retrieved using a spatial data encoding algorithm.

[0035] Optionally, in this embodiment, the space vector data is encoded using a quarter-division encoding method, through which the encoding values ​​of point data, linear data, and planar data in the graphic data can be obtained conveniently and quickly. At the same time, the encoding values The length can also be adjusted according to the actual si...

no. 2 example

[0090] Figure 9 A schematic structural diagram of a data retrieval device based on spatial coding provided for an embodiment of the present application, as shown in Figure 9 As shown, the data retrieval device based on spatial coding includes: an acquisition module 801, a calculation module 802, a matching module 803 and a determination module 804, wherein:

[0091] The acquisition module 801 is configured to acquire the spatial data to be retrieved.

[0092] The calculation module 802 is used to convert the spatial data to be retrieved into coded values ​​to be retrieved by adopting a spatial data coding algorithm; and calculate the retrieval row key according to the coded values ​​to be retrieved.

[0093] The matching module 803 is configured to determine the position of the target code value corresponding to the search row key in the preset non-relational database.

[0094] The determining module 804 is configured to read the target coded value in a preset non-relation...

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Abstract

The present application provides a data retrieval method and device based on spatial coding, which relates to the technical field of massive spatial data processing. The data retrieval method based onspatial coding comprises the following steps: acquiring spatial data to be retrieved; the spatial data to be retrieved being converted into a code value to be retrieved by adopting a spatial data coding algorithm; calculating a retrieval row key according to the code value to be retrieved; determining a position of a target code value corresponding to the search row key in a preset non-relationaldatabase; a target code value being read from that preset non-relational database accord to a position of the target code value, and spatial data corresponding to the target code value being obtained. The present application converts the spatial data into a coded value by a spatial coding algorithm, and constructs a spatial index in a non-relational database by using the coded value, thereby effectively improving the retrieval and analysis efficiency of the spatial data.

Description

technical field [0001] The present invention relates to the technical field of massive spatial data processing, in particular to a data retrieval method and device based on spatial coding. Background technique [0002] The rapid development of information technology has brought huge challenges to the storage of massive spatial data and the timeliness of spatial query. The increasing development of big data technology provides solutions for the storage and query of massive spatial data. However, most of the existing research on massive spatial data stays at the level of data storage, and cannot meet the production needs in terms of query and analysis efficiency of massive spatial data. How to solve the query and analysis efficiency of spatial data on the basis of existing big data storage solutions is an urgent problem to be solved in the industry. [0003] In the prior art, the non-relational database HBase has good performance in distributed storage and query. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 栗国保黄慧敏梁亮亮田杰李静陈光富付海涛杨文伟廖家宝
Owner GUANGDONG SOUTH DIGITAL TECH
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