Steel rail surface machining quality quantitative measurement method
The invention discloses a steel rail surface machining quality quantitative measurement method. The steel rail surface machining quality quantitative measurement method is characterized in that: a linear light bar is irradiated to the surface of the steel rail through a laser; a steel rail-light bar...
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| creator | LIU WENYUAN HUANG FANG CAO YANLONG CHEN JINGXI DING BINJIE TANG MING |
| description | The invention discloses a steel rail surface machining quality quantitative measurement method. The steel rail surface machining quality quantitative measurement method is characterized in that: a linear light bar is irradiated to the surface of the steel rail through a laser; a steel rail-light bar image of the steel rail and the light bar is obtained through a camera; the light bar is segmented from the steel rail-light bar image; discrete point-taking is performed on the light bar along the X direction so that a light bar center pixel coordinate of each discrete point is extracted; a light bar center point with a minimum vertical coordinate is searched as a feature point; a minimum value point of second derivatives of a light bar curve is searched from the feature points to the left and right sides separately; the minimum value point of the second derivatives on the left and right sides of the feature points is judged as a steel rail welding seam boundary feature point; and the difference value of the feat |
| format | Patent |
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The steel rail surface machining quality quantitative measurement method is characterized in that: a linear light bar is irradiated to the surface of the steel rail through a laser; a steel rail-light bar image of the steel rail and the light bar is obtained through a camera; the light bar is segmented from the steel rail-light bar image; discrete point-taking is performed on the light bar along the X direction so that a light bar center pixel coordinate of each discrete point is extracted; a light bar center point with a minimum vertical coordinate is searched as a feature point; a minimum value point of second derivatives of a light bar curve is searched from the feature points to the left and right sides separately; the minimum value point of the second derivatives on the left and right sides of the feature points is judged as a steel rail welding seam boundary feature point; and the difference value of the feat</description><language>chi ; eng</language><subject>DRESSING OR CONDITIONING OF ABRADING SURFACES ; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS ; GRINDING ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING ; MEASURING ; PERFORMING OPERATIONS ; PHYSICS ; POLISHING ; TESTING ; TRANSPORTING</subject><creationdate>2021</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=20210727&DB=EPODOC&CC=CN&NR=113172551A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210727&DB=EPODOC&CC=CN&NR=113172551A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LIU WENYUAN</creatorcontrib><creatorcontrib>HUANG FANG</creatorcontrib><creatorcontrib>CAO YANLONG</creatorcontrib><creatorcontrib>CHEN JINGXI</creatorcontrib><creatorcontrib>DING BINJIE</creatorcontrib><creatorcontrib>TANG MING</creatorcontrib><title>Steel rail surface machining quality quantitative measurement method</title><description>The invention discloses a steel rail surface machining quality quantitative measurement method. The steel rail surface machining quality quantitative measurement method is characterized in that: a linear light bar is irradiated to the surface of the steel rail through a laser; a steel rail-light bar image of the steel rail and the light bar is obtained through a camera; the light bar is segmented from the steel rail-light bar image; discrete point-taking is performed on the light bar along the X direction so that a light bar center pixel coordinate of each discrete point is extracted; a light bar center point with a minimum vertical coordinate is searched as a feature point; a minimum value point of second derivatives of a light bar curve is searched from the feature points to the left and right sides separately; the minimum value point of the second derivatives on the left and right sides of the feature points is judged as a steel rail welding seam boundary feature point; and the difference value of the feat</description><subject>DRESSING OR CONDITIONING OF ABRADING SURFACES</subject><subject>FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS</subject><subject>GRINDING</subject><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING</subject><subject>MEASURING</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>POLISHING</subject><subject>TESTING</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHAJLklNzVEoSszMUSguLUpLTE5VyE1MzsjMy8xLVygsTczJLKkE0XklmSWJJZllQOnURKDK1NzUvBIguyQjP4WHgTUtMac4lRdKczMourmGOHvophbkx6cWFwANzUstiXf2MzQ0NjQ3MjU1dDQmRg0ACDEzig</recordid><startdate>20210727</startdate><enddate>20210727</enddate><creator>LIU WENYUAN</creator><creator>HUANG FANG</creator><creator>CAO YANLONG</creator><creator>CHEN JINGXI</creator><creator>DING BINJIE</creator><creator>TANG MING</creator><scope>EVB</scope></search><sort><creationdate>20210727</creationdate><title>Steel rail surface machining quality quantitative measurement method</title><author>LIU WENYUAN ; HUANG FANG ; CAO YANLONG ; CHEN JINGXI ; DING BINJIE ; TANG MING</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN113172551A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2021</creationdate><topic>DRESSING OR CONDITIONING OF ABRADING SURFACES</topic><topic>FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS</topic><topic>GRINDING</topic><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING</topic><topic>MEASURING</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>POLISHING</topic><topic>TESTING</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>LIU WENYUAN</creatorcontrib><creatorcontrib>HUANG FANG</creatorcontrib><creatorcontrib>CAO YANLONG</creatorcontrib><creatorcontrib>CHEN JINGXI</creatorcontrib><creatorcontrib>DING BINJIE</creatorcontrib><creatorcontrib>TANG MING</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LIU WENYUAN</au><au>HUANG FANG</au><au>CAO YANLONG</au><au>CHEN JINGXI</au><au>DING BINJIE</au><au>TANG MING</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Steel rail surface machining quality quantitative measurement method</title><date>2021-07-27</date><risdate>2021</risdate><abstract>The invention discloses a steel rail surface machining quality quantitative measurement method. 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| language | chi ; eng |
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| subjects | DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MEASURING PERFORMING OPERATIONS PHYSICS POLISHING TESTING TRANSPORTING |
| title | Steel rail surface machining quality quantitative measurement method |
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