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1. 发明授权

US11614413B2 Back scattering inspection system and back scattering inspection method 有权
公开(公告)号：US11614413B2
公开(公告)日：2023-03-28
申请号：US17255968
申请日：2020-01-03
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED , NUCTECH (BEIJING) COMPANY LIMITED
发明人： Jianmin Li , Li Zhang , Yuanjing Li , Zhiqiang Chen , Hao Yu , Shangmin Sun , Bicheng Liu , Weizhen Wang , Dongyu Wang , Yuan Ma , Yu Hu , Chunguang Zong
IPC分类号： G01N23/20008 , G01N23/203
摘要： The present disclosure provides a back scattering inspection system and a back scattering inspection method. The back scattering inspection system includes a frame and a back scattering inspection device. The rack includes a track arranged vertically or obliquely relative to the ground, and a space enclosed by the track forms an inspection channel; and the back scattering inspection device includes a back scattering ray emitting device and a back scattering detector, and the back scattering inspection device is movably disposed on the track for inspecting an inspected object passing through the inspection channel. The back scattering inspection system can perform back scattering inspection on a plurality of surfaces of the inspected object.

2. 发明授权

US10082596B2 Vehicle inspection system 有权
公开(公告)号：US10082596B2
公开(公告)日：2018-09-25
申请号：US14582097
申请日：2014-12-23
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Yu Hu , Jianmin Li , Hui Meng , Yuan Ma , Weifeng Yu , Jinning Liang , Shangmin Sun
IPC分类号： G01N23/04 , G01V5/00 , F16M13/02 , B65G15/44 , B65G17/08 , B65G47/66
CPC分类号： G01V5/0016 , B65G15/44 , B65G17/08 , B65G47/66 , F16M13/02
摘要： The present invention discloses a vehicle inspection system, comprising: an inspection passage; a vehicle dragging system arranged in the inspection passage, wherein the vehicle dragging system comprises a first dragging means and a second dragging means, which are sequentially arranged along a vehicle dragging direction, and in the vehicle dragging direction, the first dragging means is arranged at the upstream of the second dragging means, and a separating section is arranged between the first dragging means and the second dragging means, so that the first dragging means and the second dragging means are separated by a preset distance in the vehicle dragging direction; and a radiographic inspection system, wherein at least a part of paths of the beams of the radiographic inspection system passes through the separating section between the first dragging means and the second dragging means.

3. 发明授权

US10151712B2 Vehicle-carried quick inspection system 有权
公开(公告)号：US10151712B2
公开(公告)日：2018-12-11
申请号：US14982374
申请日：2015-12-29
申请人： Tsinghua University , Nuctech Company Limited
发明人： Kejun Kang , Xuejing Yang , Shangmin Sun , Yu Hu , Jingyu Gu , Weifeng Yu , Ke Li , Lei Liu , Youai Yu
IPC分类号： H05G1/46 , G01N23/10 , G01N23/18 , B62D65/00 , G01V5/00
摘要： The present disclosure provides a vehicle-carried inspection system, including a radiation source and a detector, the radiation source and the detector being arranged to form an inspection passage. The inspection system further includes a controller configured to control the radiation source so that a first dose of radiation which is safe to a driver is radiated from the radiation source when the driver's cab of the inspected vehicle passes through a ray beam, and control the radiation source so that the dose of radiation of the radiation source becomes a working dose of radiation larger than the first dose of radiation when the other subsequent portions of the inspected vehicle pass through the ray beam.

4. 发明授权

US11422070B2 Sampling probe, automatic sampling device, and container detection system 有权
公开(公告)号：US11422070B2
公开(公告)日：2022-08-23
申请号：US16989123
申请日：2020-08-10
申请人： NUCTECH COMPANY LIMITED , Tsinghua University
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Jianmin Li , Shangmin Sun , Yaohong Liu , Weiping Zhu , Qiufeng Ma , Ge Li , Biao Cao , Zheng Liang , Ying Li , Yu Hu
IPC分类号： G01N1/24 , G01N27/622
摘要： A sampling probe, an automatic sampling device, and a container detection system are provided. The sampling probe includes: a mounting base; a housing mounted on the mounting base, a first accommodation chamber having an opening being defined in the housing, and an exhaust hole in communication with the first accommodation chamber and outside of the housing being formed in the housing; a coupling portion formed on an outer edge of the opening of the first accommodation chamber and formed to be hermetically coupled with an air outlet of a container; and a suction device mounted on the housing and configured to suck gas in the container into the first accommodation chamber through the air outlet. The sampling probe may collect the odor of toxic and harmful gases/hazardous chemicals inside the container at the air outlet of the container, without destroying the overall structure of the container.

5. 发明授权

US09817149B2 Vehicle inspection system 有权
公开(公告)号：US09817149B2
公开(公告)日：2017-11-14
申请号：US14582079
申请日：2014-12-23
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Jianmin Li , Ying Li , Yuanjing Li , Yulan Li , Tao Song , Yu Hu , Yucheng Wu
IPC分类号： G01N23/04 , G01V5/00 , G01N23/083
CPC分类号： G01V5/0016 , G01N23/083
摘要： The present invention discloses a vehicle inspection system, comprising: a radiation source; an inspection passage enabling a vehicle to pass; a dragging system comprising a first dragging means and a second dragging means, which are sequentially arranged along a vehicle dragging direction; in the vehicle dragging direction, the first dragging means is arranged at the upstream of the second dragging means, and a separating section is arranged between the first dragging means and the second dragging means, so that the first dragging means is separated from the second dragging means by a preset distance in the vehicle dragging direction; and the first and second dragging means both include a supporting plate, an elongated traction element and a pushing element connected with the elongated traction element, the elongated traction elements of the first and second dragging means are continuous and integrated, thus the elongated traction elements and pushing elements extends on the separating section; the supporting plates of the first and second dragging means are separated and two pieces type, and no supporting plate is provided on the separating section.

6. 发明授权

US11573322B2 Laser speed measuring method, control device and laser velocimeter 有权
公开(公告)号：US11573322B2
公开(公告)日：2023-02-07
申请号：US16826235
申请日：2020-03-22
申请人： NUCTECH COMPANY LIMITED , NUCTECH (BEIJING) COMPANY LIMITED
发明人： Jian Li , Shangmin Sun , Yongming Wang , Yanwei Xu , Weifeng Yu , Yu Hu , Chunguang Zong
IPC分类号： G01S17/58 , G01S7/48 , G01S7/481 , G01S17/08
摘要： The present disclosure provides a laser speed measuring method, control device and a laser velocimeter, and relates to the technical field of security inspection. The laser speed measuring method comprises the steps of: acquiring detection data within a predetermined detection angle range in a plurality of paralleled horizontal planes having different heights, from a plurality of laser rays detected towards a road extending direction in the horizontal plane; acquiring three-dimensional point cloud data according to the detection data; determining a position of a measured object in the road extending direction according to the three-dimensional point cloud data; and determining a speed of the measured object according to the position change of the measured object along the road extending direction at different timing.

7. 发明申请

US20220030132A1 METHOD AND DEVICE FOR CORRECTING A SCANNED IMAGE AND IMAGE SCANNING SYSTEM 有权
公开(公告)号：US20220030132A1
公开(公告)日：2022-01-27
申请号：US17382236
申请日：2021-07-21
申请人： NUCTECH COMPANY LIMITED
发明人： Bicheng LIU , Hao Yu , Weizhen Wang , Guangming Xu , Haojie Chi , Shangmin Sun , Chunguang Zong , Yu Hu
IPC分类号： H04N1/409 , H04N1/00 , G06T5/00 , G06T5/50 , G06T7/00 , G06T3/40
摘要： The present disclosure provides a method and device for correcting a scanned image, and an image scanning system, and relates to the field of image scanning. The method includes obtaining a scanned image of a scanned object, detecting one or more reference objects from the scanned image, determining a deformation parameter of each reference object of the one or more reference objects based on preset a standard parameter of the each reference object, and correcting the scanned image based on the deformation parameters of the one or more reference objects.

8. 发明授权

US10156528B2 Movable divided inspection system and method 有权
公开(公告)号：US10156528B2
公开(公告)日：2018-12-18
申请号：US15691748
申请日：2017-08-31
申请人： NUCTECH COMPANY LIMITED
发明人： Zhiqiang Chen , Yuanjing Li , Shangmin Sun , Yu Hu , Yuan Ma , Qiangqiang Wang , Long Du , Wei Li
IPC分类号： G01F23/00 , G01N23/04 , G05D1/00 , G01V5/00
摘要： This invention relates to a movable divided inspection system and method, wherein the scanning inspection system comprises a first radiation source, a first detection means, a first automated guided vehicle and a second automated guided vehicle. The first radiation source is mounted on the first automated guided vehicle. The first detection means is mounted on the second automated guided vehicle. The first automated guided vehicle and the second automated guided vehicle are able to drive the first radiation source and the first detection means to a preset scan inspection position, so as to form a scanning passage for passage of an article to be scanned between the first and second automated guided vehicle, such that scanning inspection of said article to be scanned is realized by relative movement of said article to be scanned with reference to said first automated guided vehicle and said second automated guided vehicle.

9. 发明申请

US20170094762A1 DUAL-ENERGY RAY SCANNING SYSTEM, SCANNING METHOD AND INSPECTING SYSTEM 审中-公开
公开(公告)号：US20170094762A1
公开(公告)日：2017-03-30
申请号：US15278043
申请日：2016-09-28
申请人： Nuctech Company Limited
发明人： Yu Hu , Shangmin Sun , Juan Zheng , Bicheng Liu
IPC分类号： H05G1/30 , G01V5/00 , G21K1/10
CPC分类号： H05G1/30 , G01N23/083 , G01N2223/313 , G01N2223/423 , G01V5/0041 , G21K1/043 , G21K1/10
摘要： The present invention discloses a dual-energy ray scanning system, scanning method and inspecting system and relates to the radiation scanning, imaging and detecting field. The dual-energy ray scanning system comprises a ray source for alternately emitting a high energy ray and a low energy ray; a filter comprising a low energy filtering element and a low energy transmitting element; and a control device for controlling said ray source and said filter to make said low energy filtering element of said filter be aligned with a beam exit direction of said ray source when said ray source emits a high energy ray so as to filter low energy portion of said high energy ray out and transmit high energy portion of said high energy ray out, and for controlling said ray source and said filter to make said low energy transmitting element of said filter be aligned with said beam exit direction of said ray source when said ray source emits the low energy ray so as to transmit said low energy ray out. This not only can improve transmissivity of the high energy ray, but also does not lose the spatial wire resolution of the low energy ray, and this guarantees the index of transmissivity and the index of spatial wire resolution at the same time, such that the dual-energy ray can sufficiently utilize a difference in its penetration characteristics to recognize the object to be inspected, thereby reaching the objective of security inspection.

10. 发明申请

US20160180186A1 VEHICLE TYPE RECOGNITION METHOD AND FAST VEHICLE CHECKING SYSTEM USING THE SAME METHOD 审中-公开
标题翻译：车辆类型识别方法和使用相同方法的快速车辆检查系统
公开(公告)号：US20160180186A1
公开(公告)日：2016-06-23
申请号：US14972106
申请日：2015-12-17
申请人： NUCTECH COMPANY LIMITED
发明人： Shangmin Sun , Yanwei Xu , Qiang Li , Weifeng Yu , Yu Hu
IPC分类号： G06K9/32 , H04N5/33 , G06K9/20 , G06K9/00
CPC分类号： G06K9/3241 , G06K9/00201 , G06K9/00771 , G06K9/209 , H04N5/33
摘要： A vehicle type recognition method based on a laser scanner is provided, the method includes detecting that a vehicle to be checked has entered into a recognition area; causing a laser scanner to move relative to the vehicle to be checked; scanning the vehicle to be checked using the laser scanner on a basis of columns, and storing and splicing data of each column obtained by scanning to form a three-dimensional image of the vehicle to be checked, wherein a lateral width value is specified for each single column of data; specifying a height difference threshold; and determining a height difference between the height at the lowest position of the vehicle to be checked in data of column N and the height at the lowest position of the vehicle to be checked in data of specified number of columns preceding and/or succeeding to the column N.
摘要翻译：提供了一种基于激光扫描仪的车辆识别方法，该方法包括：检测要检查的车辆已经进入识别区域; 使激光扫描仪相对于待检查的车辆移动; 使用激光扫描仪基于列扫描要检查的车辆，以及存储和拼接通过扫描获得的每列的数据，以形成要检查的车辆的三维图像，其中为每一个指定横向宽度值单列数据; 指定高度差阈值; 并且确定在列N的数据中要检查的车辆的最低位置处的高度与要检查的车辆的最低位置处的高度之间的高度差，该数据在指定的列数之前和/或之后的数据中列N.

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