Bidirectional Delta information updating method of navigation electronic map

An update method and technology for electronic maps, applied in road network navigators, electrical digital data processing, special data processing applications, etc., can solve the problems of long time, inflexible update content, and high cost of map format conversion, and achieve enhanced interaction, Solve information lag and improve the effect of fun

Inactive Publication Date: 2010-05-26
DMG INFOTECH +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] The purpose of the present invention is to change the unidirectionality of the batch update of the existing navigation electronic map, which is only provided by the manufacturer to the customer, and the update content is not flexible, and usually must

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  • Bidirectional Delta information updating method of navigation electronic map
  • Bidirectional Delta information updating method of navigation electronic map
  • Bidirectional Delta information updating method of navigation electronic map

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[0039] The method of the present invention will be described in more detail below with reference to the accompanying drawings.

[0040] When a user finds that a road section has changed due to road construction, such as adding a green space, building a new building, widening the road, etc., he sends the information to the map data provider through the terminal device, and the map data The provider confirms the change and obtains the image data of the geographical information change, that is, step 1 obtains the Delta information, and the map data provider inputs the Delta information into the central server; enters Step 2 to preprocess the Delta information, and the central server converts the Delta information into information Types are classified and information is decomposed or merged according to map element identification codes; step 3 Delta information is converted into Delta data, and the central server determines the area code and area internal code of each map element a...

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Abstract

The invention provides a bidirectional Delta information updating method of a navigation electronic map, which comprises a bidirectional updating of a map databank of a map data provider and a map databank of a user terminal. The bidirectional Delta information updating method is characterized in that geographic information differences and modified Delta information are converted into Delta data through a map element unique identification code, the databank of the map data provider can be modified in time, and the Delta information can be released directly or sent to the user terminal according to a user requirement in order to ensure the map databank of the user terminal to update in time. By directly providing Delta information modification, the invention solves the problems of unidirectional batch updating which is only provided by a manufacturer to customers, inflexible updating content which is generally aiming at certain area with monoblock updating, high cost and over-long time on map format conversion, and the like in the traditional navigation electronic map, and ensures the map data provider to acquire the Delta information in time and release the Delta information to the map user.

Description

technical field [0001] The invention relates to a method for updating a navigation electronic map, in particular to a method for bidirectionally updating the map based on geographic information differences and changes. Background technique [0002] With the development of technology, the application of navigation electronic map is more and more extensive. Since the second half of 2007, the application of navigation electronic map has been expanded to mobile phones, especially the emergence of ordinary multimedia GPS function mobile phones, and the navigator market has expanded to popular consumers. market, people have higher requirements for location-based services, and the update method of the navigation map in the prior art is usually to send the data to the map product center after the map is published, and the CD is produced by the map product center and sent to the user terminal or Notify the end user to go to the designated location or website to update the map data. ...

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Application Information

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IPC IPC(8): G01C21/26G06F17/30
Inventor 赵斌廖健良
Owner DMG INFOTECH
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