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Navigation system, navigation server, navigation client, and navigation method

A navigation server and navigation system technology, applied to road network navigators, instruments, maps/plans/charts, etc., can solve problems such as exploring and deviating from client routes

Inactive Publication Date: 2013-12-11
HONDA MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in cases where the server map data used by the navigation server does not strictly match the client map data used by the navigation client, it is possible to explore client routes that deviate significantly from the server route

Method used

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  • Navigation system, navigation server, navigation client, and navigation method
  • Navigation system, navigation server, navigation client, and navigation method
  • Navigation system, navigation server, navigation client, and navigation method

Examples

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Embodiment Construction

[0034] (Configuration of navigation system)

[0035] figure 1 The illustrated navigation system is composed of a navigation server 100 and a navigation client 200 . At least some of the navigation clients 200 among the plurality of navigation clients 200 may function as the navigation server 100 temporarily or always.

[0036] The navigation server 100 includes a server storage device 104 , a first server arithmetic processing unit 110 , and a second server arithmetic processing unit 120 . The navigation server 100 has a function of communicating with the navigation client 200 via a network, and is composed of one or more server computers. The Internet, a network using telephone lines, a communication network using satellite transmission, or the like can be used as the communication network.

[0037] The server storage device 104 is configured to store a server map in which each point is described by latitude and longitude. According to the server map, a link linking two ...

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Abstract

Provided is a system and the like in which the result of a route search performed by a navigation server can be effectively used by a navigation client while disparities in map data used by the navigation server and the navigation client are allowed to exist. The presence of common descriptors referred to as coordinate values makes it possible for the result of a route search performed by a navigation server (100) to be effectively used by a navigation client (200) while disparities in map data used by the navigation server (100) and the navigation client (200) are allowed to exist.

Description

technical field [0001] The invention relates to a navigation (Navigation) technology for guiding a user to a specified location. Background technique [0002] A technical method has been proposed (see Patent Document 1) in which a route retrieved by the navigation server is reproduced on the navigation client through communication between the navigation (Navi) server and the navigation client mounted on a vehicle or the like. "Navi" is an abbreviation for "Navigation". [0003] Specifically, the road segment identification information for identifying the road segment constituting a part of the server route retrieved by the navigation server is sent to the navigation client. Correspondingly, the navigation client reads coordinate column information representing the latitude and longitude of the link associated with the link identification information from the storage device, and searches and outputs the client route based on the coordinate column information. At this time, ...

Claims

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Application Information

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IPC IPC(8): G01C21/34G09B29/00G09B29/10
CPCG09B29/106G01C21/34
Inventor 野川忠文石井健太郎鹫津公洋
Owner HONDA MOTOR CO LTD