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Navigation device, updated data providing device, and updated data providing method

A navigation device and a technology for updating data, which is applied in navigation, surveying devices, surveying and navigation, etc., and can solve the problem of increasing the cost of updating times

Inactive Publication Date: 2009-08-26
CLARION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the map data is updated in units of units, there is a problem that when the map data is used, the overhead increases with the number of updates.

Method used

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  • Navigation device, updated data providing device, and updated data providing method
  • Navigation device, updated data providing device, and updated data providing method
  • Navigation device, updated data providing device, and updated data providing method

Examples

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Embodiment Construction

[0040] figure 1 It is a block diagram showing a data update system for a navigation device as an embodiment of the present invention, a navigation device 1 and an update data providing device 2 constituting the data update system. The navigation device 1 has a control device 11 , a hard disk 12 , a location detection device 13 , an input device 14 , a memory 15 , an interface 16 , and a monitor 17 . The navigation device 1 is a car navigation device installed in a vehicle, and uses navigation data stored in a hard disk 12 to perform road guidance (navigation) such as map display and route guidance.

[0041] The update data providing device 2 has a control device 21, a hard disk 22, a DVD drive device 23, an interface 24, a monitor 25, and the like, and is constituted by, for example, a personal computer or the like. In the present embodiment, the update data providing device 2 is installed at a car dealer, and updates the navigation data of the navigation device 1 installed i...

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PUM

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Abstract

When updating one of the road data, route search data, and route guide data by specifying updating of the data type of road data, route search data, or route guide data, or the data type of background data, all the data of the data type stored in the hard disc (12) are updated and when the data type is the background data, data is updated in the block unit corresponding to the specified range.

Description

technical field [0001] This specification relates to a navigation device, an update data providing device, and an update data providing method. Background technique [0002] A known technique is to divide a map into a plurality of units in a car navigation device, create a map data file for each unit, and update the map data file for each unit (for example, Patent Document 1). [0003] Patent Document 1: JP-A-2001-56823 Gazette [0004] However, when the map data is updated in units of cells, there is a problem that when the map data is used, the overhead increases with the number of updates. In particular, this problem is more prominent in data related to road connections such as locator data and route search data. Contents of the invention [0005] According to the first aspect of the present invention, the navigation device has: a storage device that stores first data and second data of a different data type from the first data; and a navigation control device that us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B29/00G01C21/00G01C21/26G06F17/30G08G1/0969G09B29/10
CPCG01C21/26
Inventor 野村高司
Owner CLARION CO LTD