Mobile rail transit three-dimensional data acquisition method and system

The invention discloses a mobile rail transit three-dimensional data acquisition method and system. The method comprises the following steps: acquiring point cloud data obtained by scanning a rail transit line through a mobile rail scanning car; determining conversion parameters between different co...

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Hauptverfasser: YANG TONG, DING LEI, MEI WENSHENG
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creator YANG TONG
DING LEI
MEI WENSHENG
description The invention discloses a mobile rail transit three-dimensional data acquisition method and system. The method comprises the following steps: acquiring point cloud data obtained by scanning a rail transit line through a mobile rail scanning car; determining conversion parameters between different coordinate systems through the posture and position relation between a scanner and a trolley on a mobile track scanning vehicle and the posture and position relation between the trolley and a track, and converting the point cloud data into a track coordinate system by using the conversion parameters; and extracting a section position and a corresponding section point cloud from the point cloud data according to the section mileage data, and comparing the section point cloud with the design file data. Rail transit three-dimensional data acquisition is carried out based on the vehicle-mounted mobile laser scanning technology, traditional frame station type scanning is replaced, multiple detection work can be completed
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language chi ; eng
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source esp@cenet
subjects CALCULATING
COMPUTING
COUNTING
GYROSCOPIC INSTRUMENTS
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING DISTANCES, LEVELS OR BEARINGS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
NAVIGATION
OTHER AUXILIARY EQUIPMENT FOR RAILWAYS
PERFORMING OPERATIONS
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
RAILWAYS
SURVEYING
TESTING
TRANSPORTING
title Mobile rail transit three-dimensional data acquisition method and system
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