Grid data compression method and grid data compression device

A technology of grid data and compression method, which is applied in geographic information database, structured data retrieval, file system, etc. It can solve the problems of small data volume requirements and difficult compression rate to meet the demand, so as to reduce compression rate and redundancy many effects

Active Publication Date: 2020-12-08
BEIJING DIDI INFINITY TECH & DEV
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Problems solved by technology

[0003] Based on the current data compression method, the compression rate can generally only reach about 45%, that is, save about 55% of the storage space, but this requires a small amount of compressed data, while the amount of data to be compressed is large. However, the compression rate is still difficult to meet the demand

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  • Grid data compression method and grid data compression device
  • Grid data compression method and grid data compression device
  • Grid data compression method and grid data compression device

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Embodiment Construction

[0052] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0053] figure 1 It is a schematic flowchart of a grid data compression method according to an embodiment of the present invention. This embodiment can be used to compress data related to geographical factors, such as takeaway order data, online car-hailing data, etc. The following is mainly in this implementation An example is applied to the case of online car-hailing data for illustrative desc...

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Abstract

The embodiment of the invention relates to the technical field of data compression, in particular to a grid data compression method, comprising the following steps: acquiring first characteristic dataof a first grid in a grid area; acquiring second characteristic data of a second network in the grid region, wherein a geographic region corresponding to the first grid is adjacent to a geographic region corresponding to the second grid; Generating third feature data corresponding to the second feature data according to a difference between the first feature data and the second feature data; Thethird characteristic data is compressed. According to the embodiment of the present invention, the third characteristic data can be compressed, and the compression ratio can be reduced because the third characteristic data is more orderly and redundant than the first characteristic data and the second characteristic data directly compressed.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of data compression, and in particular to a grid data compression method, a grid data compression device, electronic equipment, and a computer-readable storage medium. Background technique [0002] Current data compression methods mainly process data as a one-dimensional byte stream, such as gzip (data compression method based on GNU free software), zlib (compression method based on deflate compression algorithm). [0003] Based on the current data compression method, the compression rate can generally only reach about 45%, that is, save about 55% of the storage space, but this requires a small amount of compressed data, while the amount of data to be compressed is large. However, the compression rate is still difficult to meet the demand. Contents of the invention [0004] Embodiments of the present invention provide a grid data compression method, a grid data compression device...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/17G06F16/29
Inventor 倪裕芳李佩杨帆
Owner BEIJING DIDI INFINITY TECH & DEV
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