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A method for intelligent acquisition of GPS trajectory data

A technology for intelligent collection and trajectory data, applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., can solve the problems of occupying storage space, including a large number of drift points and information redundancy points, achieve good filtering effect, reduce The amount of trajectory data collected and the effect of enriching trajectory information

Inactive Publication Date: 2018-01-19
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The primary purpose of the present invention is to overcome the existing GPS trajectory data acquisition method, which contains a large number of drift points and redundant information points when recording trajectory data, takes up a large amount of storage space, and has the defects of late data processing complexity, and provides a GPS trajectory Intelligent data collection method, which can intelligently select trajectory data recording rules according to the movement mode of trajectory points, and control the quality of trajectory data according to different trajectory point information, and retain rich trajectory information while reducing the amount of trajectory data collection

Method used

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  • A method for intelligent acquisition of GPS trajectory data
  • A method for intelligent acquisition of GPS trajectory data
  • A method for intelligent acquisition of GPS trajectory data

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Experimental program
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Effect test

Embodiment 1

[0052] Such as figure 1 Shown, a kind of GPS trajectory data intelligent collection method, described method comprises the following steps:

[0053] S1: Process the navigation message received by the track point in real time, calculate and obtain the track point information of the track point, the track point information includes plane coordinates, elevation, time, speed, azimuth and comprehensive precision factor, and the comprehensive precision factor represents the trajectory Click Signal Quality.

[0054] S2: According to the track point information of the track point, the reliable point in the track point is identified as the first record point.

[0055] In the specific implementation process, in step S2, the reliable point in the trajectory signal is identified as the first point of recording by using the preset single-point data quality control standard and the neighborhood accounting method, which specifically includes the following steps:

[0056] S21: Judging wheth...

Embodiment 2

[0086] Such as Figure 4 Shown, a kind of GPS track data intelligent acquisition device, described device comprises:

[0087] Calculation module 1: used to process the navigation message received by the track point in real time, and calculate and obtain the track point information of the track point;

[0088] Recording first point identification module 2: used to identify a reliable point in the track point as the recording first point according to the track point information of the track point;

[0089] Movement pattern identification module 3: for judging movement patterns of track points according to preset movement pattern division rules;

[0090] Track point recording judgment module 4: used to check whether the track point satisfies the data quality control standards and recording rules of the preset current recording mode, if satisfied, collect and store the track point, otherwise the track point will not be stored;

[0091] Recording module 5: used for collecting and...

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Abstract

The invention discloses a method and device for intelligently collecting GPS trajectory data. After the method obtains the first point of recording, it judges the movement mode of the trajectory point according to the preset movement mode division rule and enters the corresponding recording mode. Each recording mode adopts The preset data quality control standard screens the track points, and only records the track points that meet the data quality control standard, so as to use the smallest storage space to record the track containing more abundant moving object information; and use the recording rules corresponding to each recording mode to Track points are recorded, which simplifies the information redundancy of collected data. The method effectively solves the problems of redundant data collected by the current GPS data recorder, including a large number of drift points and a huge storage capacity.

Description

technical field [0001] The invention relates to the field of geographic information and traffic communication, and more specifically, to a method and device for intelligently collecting GPS track data. Background technique [0002] The GPS track recording instrument is the material carrier for GPS technology to be applied in various related fields, and the GPS track data acquisition method is the core of the GPS data acquisition instrument. GPS trajectory data is widely used in traffic survey, traffic behavior analysis, resident travel survey, individual behavior analysis, outdoor sports and physiological characteristics analysis, urban structure research and other fields; microscopic GPS trajectory data enables time geography and activity theory and other geographical However, how to effectively record high-quality trajectory data has always been a difficult problem in the industry. [0003] In recent years, a large number of commercial miniature GPS track data collectors ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G01S19/14
Inventor 陶华超马林兵蒋思敏
Owner SUN YAT SEN UNIV
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