Map information distribution center and map information distribution method

A technology of map information and identification information, applied in the field of map information distribution center, can solve the problems of ignorance of map information distribution center and large amount of communication data, etc.

Inactive Publication Date: 2009-03-18
AISIN AW CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a problem that the amount of communication data between the navigation device and the map information distribution center becomes large every time the grid number for updating is transmitted
In addition, when the navigation device is updated based on the map information recorded on the st

Method used

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  • Map information distribution center and map information distribution method
  • Map information distribution center and map information distribution method
  • Map information distribution center and map information distribution method

Examples

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Embodiment Construction

[0067]A specific example of one embodiment of the map information distribution center and map information distribution system of the present invention will be described in detail with reference to the accompanying drawings.

[0068] refer to Figure 1 to Figure 3 An outline of the structure of the map information distribution system 1 of the first embodiment of the present invention will be described. figure 1 is a block diagram of the map information distribution system 1 of the first embodiment of the present invention. figure 2 is a diagram describing a version management scheme of map data in the map information distribution center 3 .

[0069] Such as figure 1 As shown, the map information distribution system 1 of the first embodiment of the present invention is mainly configured with: a navigation device 2; a map information distribution center 3 that distributes update information for updating map information to the navigation device 2; a network 4; and a personal ...

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Abstract

As for the navigation updating history information in an individual navigation device, sorted by a navigation ID which specifies the navigation device, the version of map information currently stored in the navigation device is stored corresponding to each block ID given to an area of an approximately 2.5 km square sorted in three distribution road categories of high standard which represents high standard roads such as national expressways and city expressways, ordinary which represents ordinary roads such as national roads of three digit numbers or more, principal local roads, prefectural roads and municipal roads, and narrow street which represents narrow streets.

Description

technical field [0001] The invention relates to a map information distribution center. More particularly, the present invention relates to a map information distribution center that transmits update information for updating map information to a navigation device. Furthermore, the present invention relates to a map information distribution system, and more particularly, to a map information distribution system that transmits update information for updating map information from a map information distribution center to a navigation device. Background technique [0002] Recently, more and more vehicles have been equipped with navigation devices that provide driving guidance so that drivers can easily reach desired destinations. Here, the navigation device is a device that detects the current vehicle position by a GPS receiver, etc., obtains map data corresponding to the current position from a recording medium (such as DVD-ROM and HDD) or via a network, and displays it on a liq...

Claims

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Application Information

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IPC IPC(8): G01C21/32G08G1/0968
Inventor 中村德裕永田赖之杉本浩伸小段友纪
Owner AISIN AW CO LTD
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