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Navigation equipment, and program and storage medium therefor

A navigation device and program technology, applied in navigation, surveying devices, surveying and navigation, etc., can solve problems such as congestion

Inactive Publication Date: 2004-07-21
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in conventional navigation devices, when encountering an obstacle, each vehicle uses the same alternative route together to avoid the obstacle, so congestion occurs on this alternative route.
Therefore, it is necessary to further generate a replacement route, and there is a problem that the same operation must be repeated twice or triple.

Method used

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  • Navigation equipment, and program and storage medium therefor
  • Navigation equipment, and program and storage medium therefor
  • Navigation equipment, and program and storage medium therefor

Examples

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Embodiment Construction

[0024] Embodiments of the present invention will be described below in conjunction with the accompanying drawings. figure 1 It is a diagram showing an embodiment of a navigation device in the present invention, and is composed of the following parts: an input device 1 for inputting information about route guidance; a current position detection device 2 for detecting information about the current position of one's own vehicle; Information storage device 3 for navigation data and display guidance data necessary for guidance, guidance programs, etc.; central processing unit 4 for controlling the entire system while performing route search processing and display guidance processing necessary for route guidance; Information transmission between the information center that stores and provides data necessary for navigation through communication lines according to the driver's request, and information sources such as electronic notebooks that pre-record the driver's unique data such as...

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Abstract

The navigation equipment stores map data in a storing means and gives the user a route guide to the destination of the user by searching a route to the destination based on the map data stored in the storing means. The equipment acquires road congestion information on the route (step S11), presumes a secondary traffic jam from the acquired road congestion information, and changes the searching cost based on the presumed traffic jam (steps S12 and S13). Then the equipment searches a route recommendable for avoiding the traffic jam based on the changed searching cost (steps S14 and S15).

Description

technical field [0001] The present invention relates to a navigation device that stores map data in a storage device, searches for a route to a destination based on the map data stored in the storage device, and performs route guidance to the destination, a program for the device, and a storage medium. Background technique [0002] In the navigation device, the optimal route to the destination is searched so that the search weight provided in the road link is the smallest, and route guidance to the destination is performed based on the searched optimal route. When such a navigation device searches for an optimal route for route guidance, Patent Document 1 adds the ability to determine an alternative route when encountering unexpected or unpredictable obstacles such as roadworks and traffic jams. [0003] In the method of Patent Document 1 that determines an alternative route, when an obstacle is encountered, the user can select a distance from the current position of the veh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B29/00G01C21/00G01C21/34G08G1/09G08G1/0968G08G1/0969G09B29/10
CPCG08G1/096827G08G1/096866G08G1/096872G08G1/096838G08G1/096844G01C21/3415G08G1/0969
Inventor 清水孝则石桥登山田邦博
Owner AISIN AW CO LTD