Appratus and method for judgment 3 dimension

The invention discloses a 3-D positioning apparatus and a method. The 3-D positioning apparatus comprises the components as following: an electric map storage portion, which stores 2-D position information and height information with multiple interpolating points; a map matching portion, which choos...

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Bibliographic Details
Main Author KIM BUM JO
Format Patent
LanguageChinese
English
Published 25.09.2013
Subjects
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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Summary:The invention discloses a 3-D positioning apparatus and a method. The 3-D positioning apparatus comprises the components as following: an electric map storage portion, which stores 2-D position information and height information with multiple interpolating points; a map matching portion, which chooses at least one alternate path; a height detection portion, which calculates vehicle heights relative to multiple interpolating points; an error correction portion, which calculates the height of at least one alternate path; and a 3-D matching portion, which determines whether the vehicle height difference is less than a critical error, and the alternate path is chosen from the at least one alternate path with error less than the critical error for map match to the present position. The map matching precision on viaducts, underground roads, car parks and other roads having height difference with a flat road, the road is more accurately introduced, and much convenience is provided for a driver.
Bibliography:Application Number: CN2013181082