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A Method of Incrementally Updating Map Data

A map data and data update technology, applied in the field of car navigation, can solve the problems of not being able to update a specific area, not being able to navigate, etc., and achieve the effect of saving map data update time, satisfying map data update, and saving download time

Active Publication Date: 2016-12-21
SHENYANG MXNAVI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem existing in the navigation system of the existing incremental update technology is that the user can only update all the map data at one time, and cannot update by specific area.
When the user updates the map data, the navigation device can only update the data, but not navigate

Method used

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  • A Method of Incrementally Updating Map Data
  • A Method of Incrementally Updating Map Data
  • A Method of Incrementally Updating Map Data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment provides a navigation device whose map data can be updated incrementally, wherein the navigation device whose map data can be updated incrementally includes a map data storage device, a network connection device, a GPS receiving device, and a display device , a map data management module, a navigation function module, and a display device;

[0028] Wherein: the map data storage device and the network connection device are respectively connected with the map data management module, the map data management module is connected with the navigation function module, the navigation function module is connected with the display device, and the GPS receiving device is connected with the navigation function module.

[0029] The map data management module includes a map data providing module and a map data updating module.

[0030] The navigation function module includes a route calculation module, including a route guidance module, a positioning module and a retri...

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Abstract

A navigation device whose map data can be incrementally updated, comprising a map data storage device, a network connection device, a GPS receiving device, a display device, a map data management module, a navigation function module, and a display device; a map data that can be incrementally updated The navigation method is characterized in that: the map data is divided according to the administrative region boundary; the navigation data providing module is also responsible for data update; before downloading the difference map data from the server, the summary information is first obtained from the server, and the summary information is displayed to the user ; After downloading the differential map data from the server, before the map data is updated, emphatically display the detailed update content in the differential map data on the device. The invention has the advantages that the user can select one or more update areas to update the map data according to his own needs, which saves the update time, the user can choose whether to update, the user experience is satisfied, and the equipment operates stably and reliably.

Description

technical field [0001] The invention relates to the field of car navigation, in particular to a navigation device and method capable of incrementally updating map data. Background technique [0002] As the basis of car navigation system, map data plays a vital role in its accuracy and effectiveness. In addition to the spatial significance of geographic information data, its temporal significance is also very important. The traditional data update method is to update all the data at one time, which brings problems. Even if the user only updates one road, the entire map database needs to be updated. In order to meet the effectiveness of map data, the map update frequency will become higher and higher. The traditional data update method is not suitable for transmission in wireless networks, and cannot meet the user's requirements for the effectiveness of map data. [0003] Therefore, it is proposed that only the changed part of the map data can be updated in the car navigati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/30G01C21/34
CPCG01C21/3859
Inventor 郭瑞瑞赵鲁李峰宁宇张璐解威黄庆林
Owner SHENYANG MXNAVI CO LTD
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