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navigation device

A navigation device and route guidance technology, applied in directions such as road network navigators, can solve the problems of maintaining the freshness of existing map data information and spending a lot of time.

Inactive Publication Date: 2015-08-05
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As described above, since road data collection by driving and generation of map data take much time, it is difficult to maintain information freshness of existing map data for local changes in roads in the real world

Method used

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Experimental program
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Embodiment Construction

[0024] Embodiments of the present disclosure will be described with reference to the drawings. It should be noted that the present disclosure is not limited to the following embodiments, but can be implemented in various aspects.

[0025] [Explanation of the configuration of the navigation device 1]

[0026] The navigation device 1 according to the present embodiment is a navigation system installed in the subject vehicle. like figure 1 As shown in , the navigation device 1 has: a position detector 21, which is used to detect the vehicle's current position of the vehicle; an operation switch group 22, which is used to input various instructions from the user; a map data storage part 24; learned road data a storage section 25; a display section 26 for displaying a map and various information; an audio output section 27 for outputting various guidance audio messages; and a controller 29.

[0027] The position detector 21 has: a GPS receiver 21a for receiving a signal transmit...

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Abstract

When a vehicle runs in a region other than existing roads stored as ready-made map data, learned road data (GL1) is generated based on a traveling locus. Further, an existing road connected with the learned road is defined as a base link (L1, L2). The base link is copied and divided, to generate auxiliary link data (GN1, GN2, SL1-SL4, SN1-SN8) to define a connection status between the learned road and the existing road in an auxiliary way. The learned road data and the auxiliary link data are recorded in association with each other. The auxiliary link data is used in navigation-related processing as a substitute for road data related to the existing road connected with the learned road. With this configuration, the existing road and the learned road are logically connected, to supplement consistency in a map containing the learned road without partially changing the ready-made map data.

Description

technical field [0001] The present disclosure relates to a navigation device that performs route guidance based on map data while using learned road data obtained based on vehicle travel history. Background technique [0002] [Patent Document 1] JP H6-88733A [0003] [Patent Document 2] JP 2006-125883A [0004] Generally, when adding a new road to map data used in a navigation device, a map maker performs add-editing on the road data using map editing software, and performs complete editing on the map data used in the navigation device based on the edited data. update or differential update. However, the above-described process is achieved by collecting road data by driving with a map maker's dedicated survey vehicle, and thereafter generating map data within several months and delivering the data to users. As described above, since road data collection by driving and generation of map data take much time, it is difficult to maintain information freshness of existing map ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/26G01C21/32
CPCG01C21/32G01C21/3844G01C21/3819G01C21/3837
Inventor 中村修治
Owner DENSO CORP