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Difference analysis method and device for electronic map

A technology of difference analysis and electronic map, which is applied in the direction of maps/plans/charts, instruments, road network navigators, etc., to achieve the effect of simple method and fast speed

Active Publication Date: 2011-07-20
NAVINFO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the prior art, after the electronic map data is updated, there is a lack of a simple, fast and reliable way to analyze the difference before and after the electronic map update, and obtain the difference analysis data required for incremental update

Method used

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  • Difference analysis method and device for electronic map
  • Difference analysis method and device for electronic map
  • Difference analysis method and device for electronic map

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Embodiment Construction

[0053] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0054] figure 1 It is a schematic flowchart of a method for analyzing differences in an electronic map according to an embodiment of the present invention. The difference analysis method in the embodiment of the present invention is used to perform difference analysis on the first map and the second map. Such as figure 1 , the differential analysis method of this embodiment comprises the following steps:

[0055] Step 101, obtaining differential information corresponding to a predetermined road relationship element in the first map and the second map, the differential information includes: a differential identifier, the differential identifier uniquely identifies the road relationship element when the road relationship element exists...

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Abstract

The invention provides a difference analysis method and device for an electronic map. The method comprises the following steps of: obtaining difference information corresponding to predetermined road relational factors in a first map and a second map, wherein the difference information comprises difference markers which uniquely mark the existence of road relational factors when the road relational factors exist; comparing the difference marker in the first map with the difference marker in the second map, and obtaining a first comparing result; and determining a difference analysis result between the first map and the second map according to the first comparing result, wherein the difference analysis result comprises road relational factors newly added to the second map and / or road relational factors deleted from the first map. The method is simple and reliable and can be used for providing the difference analysis result for a user at a higher speed.

Description

technical field [0001] The invention relates to the field of updating electronic map data, in particular to an electronic map difference analysis method and a difference analysis device. Background technique [0002] With the rapid development of urban construction and the continuous deepening of the application of navigation electronic maps, the traditional navigation data update mode has been difficult to meet the requirements of the development of navigation applications. It has become one of the core technology trends of the industry to develop advanced incremental update technology, establish an incremental update technology system, and realize rapid change identification, collection, processing, and release of information. In the prior art, after the electronic map data is updated, there is a lack of a simple, fast and reliable way to analyze the difference before and after the electronic map is updated, and to obtain the difference analysis data required for the incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/30G09B29/00
Inventor 马常杰陈丹宋慧星徐晋晖
Owner NAVINFO
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