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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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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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</description><language>chi ; eng</language><subject>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</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220208&DB=EPODOC&CC=CN&NR=114018228A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220208&DB=EPODOC&CC=CN&NR=114018228A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YANG TONG</creatorcontrib><creatorcontrib>DING LEI</creatorcontrib><creatorcontrib>MEI WENSHENG</creatorcontrib><title>Mobile rail transit three-dimensional data acquisition method and system</title><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. 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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</abstract><oa>free_for_read</oa></addata></record> |
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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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