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Map generation device and map generation program

A technology for map generation and map data, which is applied in directions such as maps/plans/charts, measuring devices, vehicle position indications, etc., and can solve the problems of inability to improve accuracy and large deviation of GPS coordinates.

Active Publication Date: 2021-04-09
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the method disclosed in Patent Document 1, since the deviation of the GPS coordinates is large, the accuracy cannot be improved if the number of samples is small. In order to improve the accuracy Problems that require a large number of samples

Method used

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  • Map generation device and map generation program
  • Map generation device and map generation program
  • Map generation device and map generation program

Examples

Experimental program
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Embodiment Construction

[0041] Hereinafter, one embodiment will be described with reference to the drawings. Such as figure 1 As shown, the map generation system 1 is configured such that an in-vehicle device 2 mounted on a vehicle side and a server 3 (corresponding to a map generation device) disposed on a network side can perform data communication. The vehicle-mounted machine 2 and the server 3 are in a many-to-one relationship, and the server 3 can perform data communication with multiple vehicle-mounted machines 2 .

[0042] The vehicle-mounted device 2 includes a control unit 4 , a data communication unit 5 , an image data input unit 6 , and a storage device 7 , and is configured such that each functional block can perform data communication via an internal bus 8 . The control section 4 is composed of a microcomputer having a CPU (Central Processing Unit: central processing unit), ROM (Read Only Memory: read only memory), RAM (Random Access Memory: random access memory), and I / O (Input / Output:...

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Abstract

In the present invention, a server (3) is provided with: a segment acquisition unit (10a) that acquires a segment including a landmark and a dividing line on a road; a common landmark setting unit (10e) that sets a common landmark in the segment acquired by the segment acquisition unit, the common landmark being in common with another segment; a dividing line setting unit (10j) that sets a dividing line in the segment using the common landmark set by the common landmark setting unit; and a map data generation unit (10k) that identifies, as a dividing line on a map, the dividing line in the segment set by the dividing line setting unit, and generates map data.

Description

[0001] Cross-references to related applications: This application is based on Japanese application No. 2018-163076 filed on August 31, 2018 and Japanese application No. 2019-142255 filed on August 1, 2019, and the contents of which are cited here. technical field [0002] The present disclosure relates to a map generation device and a map generation program. Background technique [0003] Provided is a map generation device that acquires probe information from a vehicle side and generates a map using the acquired probe information. For example, Patent Document 1 discloses a method of calculating a centerline of a road using a vehicle travel trajectory based on GPS (Global Positioning System: Global Positioning System) coordinates. [0004] Patent Document 1: Japanese Patent No. 5064870 [0005] In the method disclosed in Patent Document 1, since the deviation of the GPS coordinates is large, the accuracy cannot be improved if the number of samples is small, and there is a pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B29/00G01C21/28G08G1/13
CPCG06T11/60G09B29/10G01C21/3819G08G1/0112G01C21/3859
Inventor 横田稔片山泰典
Owner DENSO CORP