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Spatio-temporal data compression method and device, server and storage medium

A spatiotemporal data and compression method technology, applied in the computer field, can solve the problems of small data volume ratio and low compression ratio, and achieve the effects of improving compression ratio, improving performance, and improving reading efficiency

Pending Publication Date: 2021-11-30
HANGZHOU HIKVISION DIGITAL TECH
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Problems solved by technology

[0004] In related technologies, spatial data in spatio-temporal data is compressed. Since the data volume of spatial data accounts for a relatively low proportion in spatio-temporal data, the ratio of the data volume of spatio-temporal data before compression to compressed spatio-temporal data is relatively small. Small, low compression ratio

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  • Spatio-temporal data compression method and device, server and storage medium
  • Spatio-temporal data compression method and device, server and storage medium
  • Spatio-temporal data compression method and device, server and storage medium

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Embodiment Construction

[0067] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0068] The terms "first", "second", "third" and "fourth" in the specification and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or devices.

[0069] figure 1 It is a schematic diagram of an implementation environm...

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Abstract

The invention provides a spatio-temporal data compression method and device, a server and a storage medium, belonging to the technical field of computers. The method comprises the following steps: acquiring to-be-compressed first spatio-temporal data; acquiring at least one piece of static attribute data from the first spatio-temporal data, wherein the static attribute data is used for representing static attributes of a data collection target, and the change activeness of the static attribute data for the data collection target is smaller than a preset threshold value; acquiring first mapping data corresponding to each piece of static attribute data in the at least one piece of static attribute data, wherein the first mapping data is used for abstractly expressing the static attribute data; and replacing each piece of static attribute data in the first spatio-temporal data with the first mapping data corresponding to the static attribute data to obtain compressed second spatio-temporal data. As the proportion of the data size of the static attribute data in the spatio-temporal data is large, the static attribute data is replaced with the first mapping data, so the compression proportion of the spatio-temporal data can be increased.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a space-time data compression method, device, server and storage medium. Background technique [0002] Spatio-temporal data usually includes data in three aspects: temporal data, spatial data, and attribute data, and is used to record changes in the spatial data or attribute data of the target according to the time period. For example, the spatio-temporal data of a vehicle includes the location information, vehicle speed, vehicle direction and license plate information of the vehicle at each moment. Spatio-temporal data has the characteristics of high collection frequency and large number of targets. Therefore, the amount of spatio-temporal data that needs to be stored is very large. In order to reduce the storage space occupied by storing spatio-temporal data and save storage costs, it is necessary to compress spatio-temporal data. [0003] In related technologies, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/21G06F16/22G06F16/2458
CPCG06F16/21G06F16/22G06F16/2458
Inventor 许晓通李林森张建兴
Owner HANGZHOU HIKVISION DIGITAL TECH
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