Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Road section type presumption method

A road section and type technology, applied in the field of road section type estimation, can solve the problem of inaccurate estimation, and achieve the effects of high accuracy, high precision and high flexibility

Active Publication Date: 2015-02-04
GUANGZHOU HKUST FOK YING TUNG RES INST
View PDF6 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this guess is usually not very accurate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Road section type presumption method
  • Road section type presumption method
  • Road section type presumption method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] 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 creative efforts fall within the protection scope of the present invention.

[0036] figure 1 It is a schematic flow chart of an embodiment of the road segment type estimation method provided by the present invention, such as figure 1 shown, including steps:

[0037] S101. Collect historical trajectory data of a plurality of vehicles traveling on the road section to be estimated, and perform statistics on the historical trajectory data, so as to obtain statistical features of the road section to be estimated.

[0038] Specifically, step S1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a road section type presumption method. The road section type presumption method comprises the steps of acquiring historical trajectory data of running of a plurality of automobiles on a road section to be presumed and statistically gathering the historical trajectory data to obtain the statistic characteristic of the road to be presumed; extracting the topological characteristic of the road section to be presumed from topological structure data of a road network to which the road section belongs; merging the statistical characteristic of the road section to be presumed with the topological characteristic to obtain a pseudo characteristic vector; establishing a logical regression model according to the pseudo characteristic vector of the road section to be presumed to obtain a first primary presumed type of the road section to be presumed. The road section type presumption method has the advantages of higher presumption accuracy and higher flexibility in use.

Description

technical field [0001] The invention relates to the field of crowdsourcing map data processing, in particular to a road section type estimation method. Background technique [0002] In recent years, crowdsourced map services have emerged as a serious competitor to public commercial map service providers such as Google Maps. Unlike commercial map services that are generated by a small number of professionals through remote sensing imagery and measurement data, crowdsourced maps are maintained by thousands of registered users who are constantly creating and updating maps through sophisticated map editors, Such as adding, deleting and modifying roads. Therefore, crowdsourced map service is more in line with the changing trend of today's map service than the existing commercial map service. For example, it is reported that Open Street Map (OSM), the world's largest crowdsourcing map project, can provide richer and more timely map update data than all other datasets. [0003] ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/3347G06F16/29G01C21/32G01C21/3822G01C21/3841
Inventor 丁烨谭浩宇高民倪明选
Owner GUANGZHOU HKUST FOK YING TUNG RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com