Map data upgrading method

A map data and map technology, applied in the direction of electronic digital data processing, special data processing applications, maps/plans/charts, etc., can solve the problem of slow overall processing speed, and achieve the effect of simple upgrade, effective management, and fast upgrade speed

CN1940917AInactive Publication Date: 2007-04-04LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2007-04-04
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A method for upgrading map data includes recording single sheet map data position index presenting map data storage position of single sheet map at head, generating blank space domain position index presenting blank space domain position, recording generated blank space domain position index at head, automatically operating optimization if number of blank space domain position index is greater than number of preset domain.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention is a map display system that displays a certain map on the screen like a navigation system, and in particular refers to a map data upgrading method that can upgrade memory storage by taking a single map as a unit. Background technique

[0002] Generally speaking, the methods for updating the latest map data of a map display system such as a navigation system include replacing all the map data stored in the internal memory with new map data and replacing only a certain number of leaflets from the stored map data. The map data method for the map.

[0003] The above-mentioned method of replacing all map data is a method used by most of the way-guiding systems, which is to delete all the original map data stored in the internal memory and store brand new map data. However, due to the large amount of map data that needs to be changed at one time, the upgrade takes a long time, and it is mainly used for offline (off line) upgrades. It ...

Examples

Embodiment Construction

[0027] The implementation of the map data upgrading method of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] FIG. 1 is an integrated diagram showing the configuration of a map display system to which the upgrading method of the present invention is applied. Here, reference numeral 100 is a map providing server that provides certain map data, and reference numeral 110 is a map display system that receives map data provided by the map providing server 100, stores and displays it.

[0029] The above-mentioned map display system 110 is composed of the following parts: the control unit 111 that controls and stores the updated map data, and controls the display of the stored map data; According to the control of the above-mentioned control part 111, carry out data communication with the above-mentioned map providing server 100, and receive the data transmission receiving part 113 of certain map data; according to the con...