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Method and device for modifying map data

A technology of map data and vector map data, which is applied in the field of map data modification methods and devices, can solve the problems of vector map data volume, large data calculation volume, slow speed, etc., and achieve the effect of improving convenience and safety

Active Publication Date: 2018-06-08
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the amount of vector map data is huge, and the user's modification operation requires a huge amount of data calculation, so the calculation and display speed is difficult to guarantee. The client can only process in a local area, and cannot modify the map data as a whole; the client needs vector map data. After the real data is provided to all users, the protection and update of the map data in the client are not used; due to the large amount of vector map data required, the speed of rendering and displaying when users query the map is slow

Method used

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  • Method and device for modifying map data
  • Method and device for modifying map data

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Experimental program
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Embodiment 1

[0031] figure 1 It is a flowchart of a method for modifying map data provided by Embodiment 1 of the present invention. This method can be completed by the cooperation of the server and the client configured on the user terminal. The solution of this embodiment is specifically determined by the map data configured in the server. The device may be implemented by modifying the device, and the device may be implemented by means of hardware and / or software. The method specifically includes:

[0032] S110. The server generates map tiles based on the vector map data stored in the database, and sends them to the client;

[0033] The database is usually set on the server side to store massive vector map data. The vector map data is the information of each vector element in the electronic map. For example, the vector map data includes the line vector elements of roads, the point vector elements of road intersections, signal lights, cameras, buildings and other single navigation vecto...

Embodiment 2

[0049] image 3 It is a flow chart of a method for modifying map data provided by Embodiment 2 of the present invention. This embodiment is executed by a device for modifying map data configured in the client, and the method includes:

[0050] S310. The client receives map tiles from the server;

[0051] The client may first send a map query request to the server; then receive map tiles generated by the server according to the vector map data and the map query request, and display the map tiles. Map tiles are usually in the form of pictures, or only contain a small amount of basic vector map data, so there is no need for complex rendering processing on the client side, and they can be displayed quickly. At the same time, there is no need to provide all vector map data to all users, so it also protects the Security of large amounts of vector map data.

[0052] S320. The client modifies the modifiable elements according to the vector map data corresponding to the map tiles, so...

Embodiment 3

[0065] Figure 4 It is a schematic structural diagram of a map data processing device provided by Embodiment 3 of the present invention. The device is configured in a server and includes: a map tile generation module 410 , a modification request receiving module 420 and a vector data modification module 430 .

[0066] Among them, the map tile generation module 410 is used to generate map tiles based on the vector map data stored in the database, and sends them to the client; the modification request receiving module 420 is used to receive the corresponding information of the client based on the map tiles. A modification request for modifiable elements generated by the vector map data; a vector data modification module 430, configured to modify the vector map data according to the modification request.

[0067] In the above technical solution, the device preferably further includes: a modification target acquisition module, a data element acquisition module, and a data element ...

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Abstract

The embodiment of the invention provides a method and device for modifying map data. The method includes the steps that a server generates map tiles based on the vector map data stored in a database and transmits the map tiles to a client side; the server receives a modifiable element modification request generated by the client side based on the vector map data corresponding to the map tiles; the server modifies the vector map data according to the modification request. The server stores and processes modification of the vector map data, finite modifiable elements are provided to be modified by the client side, the vector map data can be effectively protected, and the client side can more conveniently and more quickly modify an electronic map.

Description

technical field [0001] Embodiments of the present invention relate to map data processing technology, and in particular to a method and device for modifying map data. Background technique [0002] At present, electronic maps play an increasingly important role in people's life and work, providing convenient services for people's travel. The amount of information on electronic maps is also becoming more and more abundant, not only basic road information, but also general navigation information such as buildings, signal lights, cameras and service facilities. Since the actual road information and navigation information may change, in addition to the regular update of the map by a professional electronic map maker, the prior art also allows users to modify the electronic map personally. [0003] The modification of the electronic map by the user is usually carried out on the stand-alone client of the electronic map and then viewed by himself, which is often an offline operatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
CPCG06F16/29
Inventor 殷宇翔张津洁
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD