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Interest point information storing method and navigation method using interest point information

A navigation method and technology of points of interest, applied in the field of electronic maps, can solve the problems of low navigation accuracy and achieve the effect of improving navigation accuracy

Inactive Publication Date: 2008-02-13
AUTONAVI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Therefore, although the method of taking the coordinates of the center point conforms to the visual habits of the human body and can well meet the needs of map display, but when using it for navigation, it makes the navigation accuracy low

Method used

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  • Interest point information storing method and navigation method using interest point information
  • Interest point information storing method and navigation method using interest point information
  • Interest point information storing method and navigation method using interest point information

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Embodiment Construction

[0047] As shown in Figure 4, the storage method of interest point information of the present invention comprises the following steps:

[0048] 1) using the coordinates of the center point of the point of interest as the display coordinates of the point of interest and storing it;

[0049] 2) store the attribute information of the point of interest;

[0050] 3) Determine the arrival coordinates of the points of interest according to their attributes.

[0051] Above-mentioned step 4) further comprises the following steps:

[0052] If the entrance of the interest point is on the side of the road and the distance from the main body to the road is greater than a threshold, the entrance coordinates of the interest point are used as its arrival coordinates;

[0053] If the point of interest occupies a large area and its interior is a non-navigation road, the coordinates of the main entrance or entrance of the point of interest are used as its arrival coordinates;

[0054] If the p...

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PUM

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Abstract

The invention discloses a storing method for information of an interest point, which includes steps mentioned below. The center point coordinate of the interest point is regarded as the display coordinate of the interest point and is stored. The attribute information of the interest point is stored. A reached coordinate can be determined according to the attribute of the interest point. The reached coordinate can be used as a coordinate for navigating road. Accordingly, a navigation method making use of the information of the interest point is disclosed, including that the reached coordinate of the interest point can be found according to the interest point. The reached coordinate is regarded as the destination. A navigation line from a staring point to the destination is planed. With the technical scheme of the invention adopted, the navigation precision can be improved.

Description

technical field [0001] The invention relates to the field of electronic maps, in particular to a method for collecting information on points of interest and a navigation method using the information on points of interest. Background technique [0002] In the field of electronic maps, a point of interest (Point Of Interest, POI) refers to a place that a user wishes to know or is about to arrive at, and may also be called a destination. Generally speaking, point of interest information is the basis of navigation. According to the point of interest information, that is, destination information, a navigation route is provided for the user, and the user can reach the POI according to the navigation route. POI can be buildings, roads, overpasses and other features. [0003] The storage method of POI information in the prior art includes steps: [0004] Use the coordinates of the center point of the POI as the display coordinates of the POI and store them; [0005] Store the att...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/34G01C21/36G01C21/26G08G1/0969G09B29/00G09B29/10G06F17/30
Inventor 姜德荣孙竹平
Owner AUTONAVI
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