Differential method for navigation electronic map, matching method and device

An electronic map and matching method technology, applied in the field of satellite navigation, can solve the problems of low processing accuracy and the inability of navigation electronic maps to respond flexibly to changes, and achieve the effect of avoiding inflexible and accurate matching.

Active Publication Date: 2010-02-10
NAVINFO
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Problems solved by technology

[0007] Aiming at the problem that the differential method of the navigation electronic map in the related art cannot flexibly deal with changes and has low processing accuracy, the present invention proposes a matching method of the navigation electronic map, which can improve the accuracy of the differential processing of the navigation electronic map
[0008] Aiming at the problem that the differential method of navigation electronic map in the related art cannot flexibly deal with changes and has low processing accuracy, the present invention also proposes a matching device for navigation electronic map, which can improve the accuracy of differential processing of navigation electronic map

Method used

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  • Differential method for navigation electronic map, matching method and device
  • Differential method for navigation electronic map, matching method and device
  • Differential method for navigation electronic map, matching method and device

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Embodiment Construction

[0044] In real life, people mainly locate roads through intersections or landmark buildings. Applying this idea to the matching process of navigation electronic maps, you can choose intersections as the main reference point for comparison. First, intersections It is a point coordinate, which is relatively simple compared with the road geometric difference. Second, the intersection is the intersection of ** road and *** road, which is unique and can increase the accuracy of comparison. Based on the above ideas, the present invention provides a method for differential navigation electronic map road data based on real logical points and topological relationships. Firstly, the name and related parameters of each reference object in the navigation electronic map to be matched need to be stored, and then matching processing needs to be performed according to the stored information.

[0045] The matching process will be described in detail below with reference to the accompanying dra...

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Abstract

The invention discloses a differential method for navigation electronic map, a matching method and a device, wherein the matching method comprises steps of: carrying out first matching treatment on afirst navigation electronic map and a second navigation electronic map according to the names of reference substances of the first navigation electronic map and the second navigation electronic map; and using the reference substances with the same names as the reference substances of the first matching treatment success. By using the invention, the map encryption or the difference which is whollyshifted can be effectively solved, thus solving the problem of low difference processing accuracy caused by looking up two version data differences from geometry point of view.

Description

technical field [0001] The invention relates to the field of satellite navigation, in particular to a differential method, a matching method and a device for a navigation electronic map. Background technique [0002] With the widespread application of navigation electronic maps, people's requirements for navigation electronic maps are gradually increasing. At present, in order to incrementally update and publish changes, and to compare the differences between two sets of databases to increase quality control, the navigation electronic map needs to apply differential methods in many places. [0003] At present, the matching algorithm between the Global Position System (GPS) and the electronic map is relatively mature, but the difference method between the navigation electronic maps is not yet perfect. At present, the following two methods are mainly used for differential processing between navigation electronic maps. [0004] Method 1: Applicable to differential processing ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/30G01S5/14
Inventor 范鹏飞曹晓航
Owner NAVINFO
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