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Intersection positioning method and device

A technology for intersections and positioning points, which is applied in the field of electronic map navigation and can solve problems such as the inability of smooth transition of vehicle signs.

Active Publication Date: 2019-02-05
ALIBABA (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a method and device for locating intersections to solve the problem in the prior art that when a vehicle turns at an intersection, the vehicle logo displayed on the electronic map cannot transition smoothly

Method used

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  • Intersection positioning method and device
  • Intersection positioning method and device

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Experimental program
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Embodiment

[0086] see figure 2 , figure 2 It is a flow chart of an intersection positioning method provided by an embodiment of the present invention. Such as figure 2 As shown, the method includes:

[0087] Step S10, according to the driving track point of the vehicle and the road segment information in the electronic map, determine whether the vehicle is in the turning state at the intersection;

[0088] Specifically, the driving trajectory point of the vehicle can be determined from DR trajectory information (Dead Reckoning, dead reckoning information), and the driving trajectory point can be the driving trajectory of the vehicle comprehensively determined by the vehicle end based on GPS positioning information and vehicle driving information , including the position information and direction vector of the vehicle's driving track point, which can accurately reflect the real driving track of the vehicle.

[0089] Specifically, in this embodiment of the present invention, an inte...

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Abstract

The invention discloses an intersection positioning method and a device. The method comprises the following steps of: determining whether the vehicle is in a turning state in the intersection according to a driving track point of the vehicle and a road section information in an electronic map; when the vehicle is in a turning state in the intersection, determining a positioning point used for displaying the position of the vehicle in the electronic map according to the driving track point of the vehicle and a matching point of the driving track point on the road. The technical solution of theintersection positioning method and device can reflect the actual driving track of the vehicle more truly at the positioning point on the electronic map, avoid the jamming and jumping, achieve the smooth transition, and improve the user experience.

Description

technical field [0001] The invention relates to the technical field of electronic map navigation, in particular to an intersection positioning method and device. Background technique [0002] During the navigation process of the vehicle, the electronic map will perform road matching for the vehicle, that is, determine the road where the vehicle is located according to the determined vehicle trajectory. Due to calculation errors and other reasons, the determined vehicle trajectory may not be completely on the road, so it is necessary to match the vehicle trajectory to the adjacent road. [0003] In an electronic map, the shape of a road is generally represented by a polyline segment. According to the existing map matching technology, when the vehicle turns at the intersection, including the case of turning inside the intersection, it is also directly connected with a polyline segment, causing the vehicle logo displayed on the electronic map to appear stuck and jump when turn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/36
CPCG01C21/367
Inventor 张艳玲张涛朱现龙殷海林
Owner ALIBABA (CHINA) CO LTD
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