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A method and device for updating points of interest on a digital map

A technology for digital maps and points of interest, which is applied in the field of updating points of interest in digital maps, can solve the problems of inability to update display coordinates, and achieve the effect of improving accuracy and precision.

Active Publication Date: 2022-03-08
NAVINFO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the method of optimizing POI in map data in the prior art can only update the guide coordinates but cannot update the display coordinates

Method used

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  • A method and device for updating points of interest on a digital map
  • A method and device for updating points of interest on a digital map
  • A method and device for updating points of interest on a digital map

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Embodiment 1

[0029] This embodiment provides a method for updating a point of interest in a digital map, which is used in a digital map to update the original POI position information and guidance information in time according to the real-time data information obtained by the acquisition device. The method includes:

[0030] S1. Obtain the original location information of the target point of interest.

[0031] The original location information can be the original data stored in the digital map, the original location information is stored in the original library, and the existing point of interest location and related information data are stored in the original library, such as display coordinates (also called location coordinates) and Guide coordinates.

[0032] S2. Obtain reference location information of the target point of interest collected by multiple collection devices.

[0033] The reference position information of POI can be collected through a variety of collection devices. The c...

Embodiment 2

[0068] This embodiment also provides a device for updating points of interest on a digital map, the flow chart of which is as follows Figure 6 shown, including:

[0069] The original location information acquisition unit 01 is used to acquire the original location information of the target point of interest;

[0070] The reference position information acquisition unit 02 is used to acquire the reference position information of the target point of interest collected by a plurality of acquisition devices;

[0071] An optimized location information acquisition unit 03, configured to select reference location information whose difference from the original location information is within a first preset range, and calculate optimized location information of the target point of interest according to the selected reference location information;

[0072] The location information updating unit 04 is configured to compare the optimized location information with the original location inf...

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Abstract

The present invention provides a method for updating a point of interest on a digital map. The original position information of the target point of interest is obtained, and the reference position information of the target point of interest collected by multiple acquisition devices is obtained. The difference between the original position information and the selection is within the first preset range The reference position information within, calculate the optimized position information of the target point of interest according to the selected reference position information; compare the optimized position information with the original position information, if the difference exceeds the second preset range, update the original position information to the Optimize location information described above. In this solution, by comparing the data collected in real time with the original location information, the inaccurate road data information and POI information in the original data are found out, and the original location information is corrected according to the correct information obtained in real time, thereby improving the POI accuracy. Accuracy.

Description

technical field [0001] The invention relates to the field of digital maps, in particular to a method and device for updating interest points of digital maps. Background technique [0002] With the development of information technology, digital maps provide more and more convenience for people. Information points in digital maps, also known as map points or points of interest (Point of Interest, hereinafter referred to as POI), refer to the comprehensive information marked on the map with information such as name, category, longitude, latitude, etc., among which there are positioning points Geographical entities are generally labeled with their names. In GIS, a POI can be a house, a store, a mailbox, a bus stop, etc. [0003] The coordinates of POI include display coordinates and guide coordinates. The display coordinates are used for actual display in the map, generally the real position of POI, and the guide coordinates are used for route calculation. When the navigation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29G06F16/23
CPCG06F16/29G06F16/9537
Inventor 曲燕飞邓天辉郝彪马朝辉
Owner NAVINFO