Optimization method of pipeline surveying and mapping internal inspection IMU data preprocessing
The invention discloses an optimization method of pipeline surveying and mapping internal inspection IMU data preprocessing. The method comprises the following steps: firstly, determining an estimatedvalue of an initial attitude angle of an IMU by measuring a physical dimension of a ball serving bar...
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| creator | LI TONG DU HUILI YAO ZHIJUN LI JUN XU ZHIJUN LIU XIANDONG QIAN DECAI MA XUELI ZHENG SHULIN ZHU KEYUN YUAN LONGCHUN MENG XIANGLEI GONG ZE GU CHUNLIN SI GANGQIANG ZHUANG JINFENG HOU SHIJUN YIN XUNJIN CAO LELE TANG RONG LIU YISHENG CHEN FENG XUE ZHENGLIN CHENG WENFENG ZHANG FENG SU LIN LIU JUNFU CHEN FAXIANG ZHANG SU |
| description | The invention discloses an optimization method of pipeline surveying and mapping internal inspection IMU data preprocessing. The method comprises the following steps: firstly, determining an estimatedvalue of an initial attitude angle of an IMU by measuring a physical dimension of a ball serving barrel; then performing initial alignment of a static base by using two iterative filtering data to becompared to respectively obtain a course angle and an elevation angle, and calculating alignment errors of the course angle and the elevation angle; and then using a difference value of absolute values of the alignment errors as a criterion to evaluate the effect of the twice iterative filtering. By adoption of the method, the filtering effects of different iterations can be compared to a certainextent to prompt the over-filtering situation and to optimize the preprocessing algorithm. Compared with the manner of directly comparing the matching degree of a solution trajectory and a checkpoint, the method is more effici |
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The method comprises the following steps: firstly, determining an estimatedvalue of an initial attitude angle of an IMU by measuring a physical dimension of a ball serving barrel; then performing initial alignment of a static base by using two iterative filtering data to becompared to respectively obtain a course angle and an elevation angle, and calculating alignment errors of the course angle and the elevation angle; and then using a difference value of absolute values of the alignment errors as a criterion to evaluate the effect of the twice iterative filtering. By adoption of the method, the filtering effects of different iterations can be compared to a certainextent to prompt the over-filtering situation and to optimize the preprocessing algorithm. Compared with the manner of directly comparing the matching degree of a solution trajectory and a checkpoint, the method is more effici</description><language>chi ; eng</language><subject>GYROSCOPIC INSTRUMENTS ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; MEASURING DISTANCES, LEVELS OR BEARINGS ; NAVIGATION ; PHOTOGRAMMETRY OR VIDEOGRAMMETRY ; PHYSICS ; SURVEYING ; TESTING</subject><creationdate>2019</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=20190611&DB=EPODOC&CC=CN&NR=109870546A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190611&DB=EPODOC&CC=CN&NR=109870546A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LI TONG</creatorcontrib><creatorcontrib>DU HUILI</creatorcontrib><creatorcontrib>YAO ZHIJUN</creatorcontrib><creatorcontrib>LI JUN</creatorcontrib><creatorcontrib>XU ZHIJUN</creatorcontrib><creatorcontrib>LIU XIANDONG</creatorcontrib><creatorcontrib>QIAN DECAI</creatorcontrib><creatorcontrib>MA XUELI</creatorcontrib><creatorcontrib>ZHENG SHULIN</creatorcontrib><creatorcontrib>ZHU KEYUN</creatorcontrib><creatorcontrib>YUAN LONGCHUN</creatorcontrib><creatorcontrib>MENG XIANGLEI</creatorcontrib><creatorcontrib>GONG ZE</creatorcontrib><creatorcontrib>GU CHUNLIN</creatorcontrib><creatorcontrib>SI GANGQIANG</creatorcontrib><creatorcontrib>ZHUANG JINFENG</creatorcontrib><creatorcontrib>HOU SHIJUN</creatorcontrib><creatorcontrib>YIN XUNJIN</creatorcontrib><creatorcontrib>CAO LELE</creatorcontrib><creatorcontrib>TANG RONG</creatorcontrib><creatorcontrib>LIU YISHENG</creatorcontrib><creatorcontrib>CHEN FENG</creatorcontrib><creatorcontrib>XUE ZHENGLIN</creatorcontrib><creatorcontrib>CHENG WENFENG</creatorcontrib><creatorcontrib>ZHANG FENG</creatorcontrib><creatorcontrib>SU LIN</creatorcontrib><creatorcontrib>LIU JUNFU</creatorcontrib><creatorcontrib>CHEN FAXIANG</creatorcontrib><creatorcontrib>ZHANG SU</creatorcontrib><title>Optimization method of pipeline surveying and mapping internal inspection IMU data preprocessing</title><description>The invention discloses an optimization method of pipeline surveying and mapping internal inspection IMU data preprocessing. The method comprises the following steps: firstly, determining an estimatedvalue of an initial attitude angle of an IMU by measuring a physical dimension of a ball serving barrel; then performing initial alignment of a static base by using two iterative filtering data to becompared to respectively obtain a course angle and an elevation angle, and calculating alignment errors of the course angle and the elevation angle; and then using a difference value of absolute values of the alignment errors as a criterion to evaluate the effect of the twice iterative filtering. By adoption of the method, the filtering effects of different iterations can be compared to a certainextent to prompt the over-filtering situation and to optimize the preprocessing algorithm. 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DU HUILI ; YAO ZHIJUN ; LI JUN ; XU ZHIJUN ; LIU XIANDONG ; QIAN DECAI ; MA XUELI ; ZHENG SHULIN ; ZHU KEYUN ; YUAN LONGCHUN ; MENG XIANGLEI ; GONG ZE ; GU CHUNLIN ; SI GANGQIANG ; ZHUANG JINFENG ; HOU SHIJUN ; YIN XUNJIN ; CAO LELE ; TANG RONG ; LIU YISHENG ; CHEN FENG ; XUE ZHENGLIN ; CHENG WENFENG ; ZHANG FENG ; SU LIN ; LIU JUNFU ; CHEN FAXIANG ; ZHANG SU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN109870546A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2019</creationdate><topic>GYROSCOPIC INSTRUMENTS</topic><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>MEASURING</topic><topic>MEASURING DISTANCES, LEVELS OR BEARINGS</topic><topic>NAVIGATION</topic><topic>PHOTOGRAMMETRY OR VIDEOGRAMMETRY</topic><topic>PHYSICS</topic><topic>SURVEYING</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>LI TONG</creatorcontrib><creatorcontrib>DU HUILI</creatorcontrib><creatorcontrib>YAO ZHIJUN</creatorcontrib><creatorcontrib>LI JUN</creatorcontrib><creatorcontrib>XU ZHIJUN</creatorcontrib><creatorcontrib>LIU XIANDONG</creatorcontrib><creatorcontrib>QIAN DECAI</creatorcontrib><creatorcontrib>MA XUELI</creatorcontrib><creatorcontrib>ZHENG SHULIN</creatorcontrib><creatorcontrib>ZHU KEYUN</creatorcontrib><creatorcontrib>YUAN LONGCHUN</creatorcontrib><creatorcontrib>MENG XIANGLEI</creatorcontrib><creatorcontrib>GONG ZE</creatorcontrib><creatorcontrib>GU CHUNLIN</creatorcontrib><creatorcontrib>SI GANGQIANG</creatorcontrib><creatorcontrib>ZHUANG JINFENG</creatorcontrib><creatorcontrib>HOU SHIJUN</creatorcontrib><creatorcontrib>YIN XUNJIN</creatorcontrib><creatorcontrib>CAO LELE</creatorcontrib><creatorcontrib>TANG RONG</creatorcontrib><creatorcontrib>LIU YISHENG</creatorcontrib><creatorcontrib>CHEN FENG</creatorcontrib><creatorcontrib>XUE ZHENGLIN</creatorcontrib><creatorcontrib>CHENG WENFENG</creatorcontrib><creatorcontrib>ZHANG FENG</creatorcontrib><creatorcontrib>SU LIN</creatorcontrib><creatorcontrib>LIU JUNFU</creatorcontrib><creatorcontrib>CHEN FAXIANG</creatorcontrib><creatorcontrib>ZHANG SU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LI TONG</au><au>DU HUILI</au><au>YAO ZHIJUN</au><au>LI JUN</au><au>XU ZHIJUN</au><au>LIU XIANDONG</au><au>QIAN DECAI</au><au>MA XUELI</au><au>ZHENG SHULIN</au><au>ZHU KEYUN</au><au>YUAN LONGCHUN</au><au>MENG XIANGLEI</au><au>GONG ZE</au><au>GU CHUNLIN</au><au>SI GANGQIANG</au><au>ZHUANG JINFENG</au><au>HOU SHIJUN</au><au>YIN XUNJIN</au><au>CAO LELE</au><au>TANG RONG</au><au>LIU YISHENG</au><au>CHEN FENG</au><au>XUE ZHENGLIN</au><au>CHENG WENFENG</au><au>ZHANG FENG</au><au>SU LIN</au><au>LIU JUNFU</au><au>CHEN FAXIANG</au><au>ZHANG SU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Optimization method of pipeline surveying and mapping internal inspection IMU data preprocessing</title><date>2019-06-11</date><risdate>2019</risdate><abstract>The invention discloses an optimization method of pipeline surveying and mapping internal inspection IMU data preprocessing. The method comprises the following steps: firstly, determining an estimatedvalue of an initial attitude angle of an IMU by measuring a physical dimension of a ball serving barrel; then performing initial alignment of a static base by using two iterative filtering data to becompared to respectively obtain a course angle and an elevation angle, and calculating alignment errors of the course angle and the elevation angle; and then using a difference value of absolute values of the alignment errors as a criterion to evaluate the effect of the twice iterative filtering. By adoption of the method, the filtering effects of different iterations can be compared to a certainextent to prompt the over-filtering situation and to optimize the preprocessing algorithm. Compared with the manner of directly comparing the matching degree of a solution trajectory and a checkpoint, the method is more effici</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | GYROSCOPIC INSTRUMENTS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING |
| title | Optimization method of pipeline surveying and mapping internal inspection IMU data preprocessing |
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