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A road network verification method based on big data of floating car trajectory

A technology of trajectory big data and floating car data, applied in database indexing, geographic information database, structured data retrieval, etc., can solve problems such as wrong driving route planning, traffic accidents, etc.

Active Publication Date: 2021-04-27
CHINA TRANSPORT TELECOMM & INFORMATION CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the road network information is not updated in time, it may lead to serious consequences such as traffic accidents
Especially in terms of vehicle navigation, if newly built roads or closed roads are not updated in time, it may provide users with wrong driving route planning

Method used

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  • A road network verification method based on big data of floating car trajectory
  • A road network verification method based on big data of floating car trajectory
  • A road network verification method based on big data of floating car trajectory

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Embodiment Construction

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0060] In the embodiment of the present invention: a road network verification method based on the big data of the floating car track is provided, the source of the used floating car track data is the cold backup data (floating car data) of the networked joint control system of the China Communications Information Center, and the collection time The segment is 2016 / 9 / 1 0:00-2016 / 9 / 30 23:59, and the sampling interval is 10-120 seconds; the data area is a rectang...

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Abstract

The invention discloses a road network verification method based on big data of floating car trajectory, including data preparation, data preprocessing, road network verification method, experiment and analysis, through the data verification method based on grid index and line segment credibility Research the experimental area for experimental verification, and analyze the generated results. The program can semi-automatically realize the verification of the road network using the big data of the floating car trajectory, which has achieved the expected goal, and the road network verification results have high accuracy and can be applied For the actual verification of the road network, after the user interactively inputs the threshold data, the verification of the road network can be semi-automatically operated, thereby reducing the cost of manual verification and improving the verification efficiency.

Description

technical field [0001] The invention relates to the technical field of application of big data on the track of a floating car, in particular to a road network verification method based on the big data on the track of a floating car. Background technique [0002] Road network map data is an important part of national basic geographic information and intelligent transportation, and plays a key role in smart city construction, vehicle intelligent navigation, network map service, and map data update. With the rapid development of urban and rural road construction, road changes are changing with each passing day, resulting in lagging road network map data update, poor current situation, low completeness and accuracy. Traditional road network update and verification technologies, such as professional surveying and mapping by surveying and mapping departments, comprehensive downsizing and updating of maps, and vectorized mapping of remote sensing images, have high cost requirements...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G06F16/29G06F16/22
CPCG08G1/0112G06F16/22G06F16/29
Inventor 胡玉龙李丽罗伦李程郭榕刚李玉
Owner CHINA TRANSPORT TELECOMM & INFORMATION CENT
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