Hierarchical processing method for spatio-temporal trajectory data

A trajectory data, hierarchical processing technology, applied in navigation computing tools and other directions, can solve the problems of lack of processing flow and methods, unfavorable data analysis and mining, lack of hierarchical processing framework, etc., to reduce storage space, facilitate data analysis and mining, The effect of reducing computational complexity

Active Publication Date: 2019-01-11
济钢防务技术有限公司
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  • Abstract
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Problems solved by technology

The existing spatio-temporal trajectory data processing generally only provides one of the methods of offline or online compression for the problem, and no further feature extraction is performed after the data is compressed. The whole process lacks a hierarchical processing framework, which is not conducive to subsequent data analysis. and mining, how to process trajectory data in a layered and multi-angle manner still lacks specific processing procedures and methods

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Embodiment Construction

[0015] Certain embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to these set forth embodiments; rather, these embodiments are provided so that this invention will satisfy applicable legal requirements.

[0016] In this specification, the various embodiments described below to describe the principles of the present invention are illustrative only and should not be construed as limiting the scope of the invention in any way. The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of exemplary embodiments of the present invention as defined by the claims and their equivalents. The following description includes numerous specific details to aid in understanding, but these shoul...

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Abstract

The invention relates to a grading processing method for space-time track data. The grading processing method comprises the following steps of obtaining increment track data, wherein the track is a path formed by a mobile object in space; using an online compression method to compress the increment track data in real time; obtaining offline track data within a period of time; using an offline compression method to compress the offline track data; extracting feature vectors from the offline track data.

Description

technical field [0001] The invention relates to the field of spatio-temporal data processing, in particular to a hierarchical processing method of spatio-temporal trajectory data. Background technique [0002] With the continuous development of GPS technology and the widespread use of personal terminal products, a large amount of trajectory data has been generated in real life, such as people's daily travel trajectory data recorded by mobile phones, which contains information about the roads people pass by and the supermarkets they often go to. , Shopping malls, restaurants and other places of interest information; the car rental car trajectory data recorded by the GPS on the taxi, which includes the frequent areas where people travel in the city and road congestion information. [0003] On the one hand, trajectory data contains some important information. In the era of big data, the more data there is, the more interesting knowledge can be mined. On the other hand, the aver...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/20
CPCG01C21/20
Inventor 付琨许光銮王洋孙显李峰陈大禄肖志斌吴凡
Owner 济钢防务技术有限公司
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