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Method and apparatus for updating road map geometry based on probe data

一种探针、设备的技术，应用在地图生成和修改领域，能够解决地图绘制服务难以跟上地图特征变化等问题

Active Publication Date: 2019-10-25
HERE GLOBAL BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to new roads as well as closures or rerouting of existing roads, map features such as roads and routes along roads change with relative frequency, and given that there are millions of miles of roads and thousands of road items that are constantly changing Traffic routes, mapping services may struggle to keep up with changes in map features

Method used

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  • Method and apparatus for updating road map geometry based on probe data
  • Method and apparatus for updating road map geometry based on probe data
  • Method and apparatus for updating road map geometry based on probe data

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Embodiment Construction

[0025] Some embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like reference numerals refer to like elements throughout. As used herein, the terms "data," "content," "information" and similar terms may be used interchangeably to refer to data capable of being transmitted, received and / or stored in accordance with embodiments of the present invention. Thus, use of any such terms should not be taken to limit the spirit and scope of embodiments of the present invention.

[0026] As defined herein, a "computer-readable storage medium" that refers to a non-transitory physical ...

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Abstract

A method is provided for generating and revising map geometry based on probe data. A method may include: map-matching a probe data point location to a roadway; identifying an established vertex corresponding to the location along the roadway; determining an average position corresponding to the established vertex; determining a variance of the established vertex; determining a number of data points having contributed to the average position and the variance of the established vertex; calculating a revised average position and a revised variance using the probe data point location, the averageposition, the variance, and the number of data points; and causing storage of the revised average position and revised variance for the established vertex in the memory and increasing the number of data points having contributed to the average position and the variance of the established vertex to facilitate update of a map representation including the established vertex with the revised average position.

Description

technical field [0001] Example embodiments of the invention relate to map generation and modification, and more particularly, to incrementally modifying map geometry based on probe data and delegating processing of map geometry modifications. Background technique [0002] For centuries, the land Figure 1 It has been used to provide route geometry and geographic information. Traditional paper maps that historically contained static images of roads and geographic features from snapshots have been replaced by digital maps presented on computers and mobile devices. These digital maps can be updated and modified so that users get the latest map each time they view a map hosted by a mapping service server. However, due to new roads as well as closures or rerouting of existing roads, map features such as roads and routes along roads change with relative frequency, and given that there are millions of miles of roads and thousands of road items that are constantly changing Traffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/32
CPCG01C21/3811G01C21/3819G01C21/3841G01C21/3682G01C21/3694G01C21/3673
Inventor 奥利·亨利·德吕姆
Owner HERE GLOBAL BV