公开(公告)号：US20220084336A1

公开(公告)日：2022-03-17

申请号：US17421709

申请日：2020-01-23

Applicant: NUCTECH COMPANY LIMITED ,  NUCTECH (BEIJING) COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Yongming WANG ,  Junjie TU ,  Chuan GAO ,  Yanwei XU ,  Weifeng YU ,  Chunguang ZONG ,  Yu HU

IPC: G07C5/08 ,  B60W40/10

Abstract: This disclosure provides a vehicle inspection method, apparatus, system, and computer-readable storage medium and relates to the field of security inspection technologies. The vehicle inspection method of the present disclosure includes: acquiring vehicle profile information of a vehicle through a first sensor that performs measurement in a direction perpendicular to a passage, and determining a feature point of the vehicle according to the vehicle profile information; determining a position of the vehicle in the passage through a second sensor that performs measurement in a direction along the passage, and determining a position of the feature point according to the position of the vehicle in the passage; and switching an operating mode of a ray source based on a preset strategy according to a position relation between the position of the feature point and the ray source.

公开(公告)号：US20190204244A1

公开(公告)日：2019-07-04

申请号：US16234630

申请日：2018-12-28

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Hao YU ,  Ying LI ,  Weizhen WANG ,  Quanwei SONG ,  Dongyu WANG ,  Haojie CHI ,  Jianmin LI ,  Yulan LI ,  Chunguang ZONG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Li ZHANG

IPC: G01N23/203 ,  G01V5/00

CPC classification number: G01N23/203 ,  G01V5/0025

Abstract: The present disclosure discloses a vehicle-mounted type back scattering inspection system. The back scattering imaging device has a vehicle-mounted working state and a ground working state, and in the vehicle-mounted working state, the back scattering imaging device performs inspection work in the carriage; in the ground working state, the back scattering imaging device performs the inspection work on the ground at the outside of the carriage; and the back scattering imaging device is separately arranged relative to the carriage and is movable between the carriage and the ground to switch between the vehicle-mounted working state and the ground working state.

公开(公告)号：US20190204240A1

公开(公告)日：2019-07-04

申请号：US16231373

申请日：2018-12-21

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Ke LI ,  Jianmin LI ,  Weifeng YU ,  Yulan LI ,  Xuejing YANG ,  Yuanjing LI ,  Chunguang ZONG ,  Zhiqiang CHEN ,  Li ZHANG

IPC: G01N23/04

CPC classification number: G01N23/04 ,  G01N2223/04 ,  G01N2223/303 ,  G01N2223/33 ,  G01N2223/401

Abstract: The present disclosure provides a scanned image correction apparatus, method and a mobile scanning device. The apparatus includes an image collector, an arm swing detector, and an image processor. The image collector is configured to collect a scanned image of an object under inspection during a scanning process of scanning the object under inspection by the mobile scanning device, and determine an image parameter of the scanned image. The arm swing detector is disposed at a monitor point on a detector arm of the mobile scanning device, and configured to detect a displacement offset of the detector arm in a specified direction and build an arm swing model of the detector arm. The image processor is configured to determine a change relationship between the image parameter of the scanned image and the displacement offset of the detector arm, and correct the scanned image based on the change relationship.

公开(公告)号：US20240053504A1

公开(公告)日：2024-02-15

申请号：US18260010

申请日：2021-11-23

Applicant: NUCTECH COMPANY LIMITED

Inventor： Yuan MA ,  Lei LIU ,  Weizhen WANG ,  Quanwei SONG ,  Lingjun GONG ,  Xinbo ZHU ,  Long DU ,  Guangming XU ,  Xingliang ZHAI ,  Lina HOU ,  Shangmin SUN ,  Chunguang ZONG ,  Yu HU

IPC: G01V5/00

CPC classification number: G01V5/0008

Abstract: An object detection device is provided, including: a support structure, a ray source assembly, and a detector assembly. The support structure is configured to form a passageway for a passage of a detected object; the ray source assembly is configured to emit a ray; and the detector assembly includes a detector mounting frame connected to the support structure and a plurality of detection units arranged on the detector mounting frame, the detection unit being configured to receive a transmission ray penetrating the detected object and obtain a detection information based on the transmission ray; the support structure includes a vertical support arm having an adjustable height, and a vertical distance from the ray source assembly to a bottom portion of the support structure varies with a height of the vertical support arm. Another object detection device is further provided, including a ray source assembly, a detector assembly and a controller.

公开(公告)号：US20230243763A1

公开(公告)日：2023-08-03

申请号：US18012866

申请日：2021-06-23

Applicant: NUCTECH COMPANY LIMITED

Inventor： Kejin GAO ,  Chunguang ZONG ,  Yu HU ,  Shangmin SUN ,  Quanwei SONG ,  Junping SHI

IPC: G01N23/10 ,  G01N23/04 ,  G01N23/083

CPC classification number: G01N23/10 ,  G01N23/04 ,  G01N23/083 ,  G01N2223/3303

Abstract: A mobile detection device and a detection method are provided. The mobile detection device includes: a bearing platform, being arranged fixedly, and including a bearing surface bearing an object to be detected; a movable gantry, located on a side of the bearing surface bearing the object to be detected and configured to be movable relative to the bearing platform; a movable bearing device, located on a side of the bearing surface away from the movable gantry and configured to be movable relative to the bearing platform; a first radiation source, arranged on one of the movable gantry and the movable bearing device, and a first detector array, arranged opposite to the radiation source and arranged on the other of the movable gantry and the movable bearing device, wherein the movable gantry and the movable bearing device are configured to be moved synchronously relative to the bearing platform.

公开(公告)号：US20200217963A1

公开(公告)日：2020-07-09

申请号：US16826235

申请日：2020-03-22

Applicant: NUCTECH COMPANY LIMITED ,  NUCTECH (BEIJING) COMPANY LIMITED

Inventor： Jian LI ,  Shangmin SUN ,  Yongming WANG ,  Yanwei XU ,  Weifeng YU ,  Yu HU ,  Chunguang ZONG

IPC: G01S17/58 ,  G01S17/08 ,  G01S7/48 ,  G01S7/481

Abstract: 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.

公开(公告)号：US20190122781A1

公开(公告)日：2019-04-25

申请号：US16166042

申请日：2018-10-19

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Yigang YANG ,  Jianmin LI ,  Dongyu WANG ,  Hao YU ,  Weizhen WANG ,  Weiqiang GUAN ,  Wei YIN ,  Wei LI ,  Quanwei SONG ,  Yulan LI ,  Chunguang ZONG ,  Yaohong LIU ,  Yuanjing LI ,  Zhiqiang CHEN ,  Li ZHANG

IPC: G21G4/02 ,  G01N23/00 ,  H05H6/00

Abstract: The present disclosure discloses a photoneutron source and a neutron inspection system. The photoneutron source comprises: an electron accelerating tube for accelerating an electron beam; an X-ray converting target, and the electron beam accelerated by the electron accelerating tube bombards the X-ray converting target to generate X-rays; a photoneutron target, and the X-rays enters the photoneutron target to generates photoneutrons; and a neutron modulation housing provided outside the photoneutron target, and the neutron modulation housing comprises a neutron collimation port for outputting photoneutrons. The present disclosure may directly output a desired neutron beam from the neutron collimation port of the photoneutron source.

公开(公告)号：US20180081078A1

公开(公告)日：2018-03-22

申请号：US15709350

申请日：2017-09-19

Applicant: NUCTECH COMPANY LIMITED

Inventor： Chunguang ZONG ,  Ying LI ,  Hejun ZHOU ,  Jianmin LI ,  Yuanjing LI ,  Yulan LI ,  Li ZHANG ,  Zhiqiang CHEN

IPC: G01V5/00

CPC classification number: G01V5/0066 ,  G01V5/0016 ,  G01V5/0025

Abstract: A ray inspection system used to be mounted in a container yard to inspect an object within a container is provided. The ray inspection system includes: a ray generator device configured to emit a ray, a ray receiving device configured to receive the ray, and at least one chamber for receiving the ray generator device and the ray receiving device therein. Each of the at least one chamber is configured to be a standard container or a chamber which has a same shape, a same size and a same structure as a standard container such that the ray inspection system is adapted to be stacked in the container yard.

公开(公告)号：US20160170074A1

公开(公告)日：2016-06-16

申请号：US14965978

申请日：2015-12-11

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Jianmin LI ,  Yulan LI ,  Yuanjing LI ,  Hao YU ,  Chunguang ZONG ,  Jingyu GU ,  Weifeng YU ,  Quanwei SONG ,  Weizhen WANG ,  Shangmin SUN ,  Yinong LIU ,  Junli LI ,  Chuanxiang TANG

IPC: G01V5/00 ,  G21K1/02

CPC classification number: G01V5/0016 ,  G01V5/0008 ,  G21K1/02

Abstract: The present disclosure discloses an alignment system and an alignment method for a container or vehicle inspection system, and an inspection system. The inspection system comprises comprising an ray source, a collimator, a detector arm and a detector module mounted on a detector arm, the ray source, the collimator and the detector module are arranged to form an inspection passage, a ray beam emitted from the ray source passes through collimator and irradiates onto an inspected object, and an attenuated ray beam is collected by the detector module so as to complete inspection. The alignment system comprises a measuring module arranged to receive the ray beam emitted from the collimator and to measure the ray beam so as to determine positions and orientations of the ray source and the collimator. With the alignment method, alignment between a center point of the ray source, a central line of a detector tip and a central line of the collimator may be more accurately measured.

Abstract translation: 本公开公开了一种用于集装箱或车辆检查系统的对准系统和对准方法以及检查系统。 检查系统包括一个安装在检测器臂上的射线源，准直仪，检测器臂和检测器模块，射线源，准直器和检测器模块被布置成形成检查通道，从射线射出的射线束 源通过准直仪并照射到检查对象上，并且由检测器模块收集衰减的射线束，以便完成检查。 对准系统包括测量模块，其布置成接收从准直仪发射的射线束并测量射线束，以便确定射线源和准直器的位置和取向。 利用对准方法，可以更准确地测量射线源的中心点，检测器尖端的中心线与准直仪的中心线之间的对准。

公开(公告)号：US20160061988A1

公开(公告)日：2016-03-03

申请号：US14837211

申请日：2015-08-27

Applicant: Nuctech Company Limited

Inventor： Quanwei SONG ,  Kejin GAO ,  Xuping FAN ,  Liwei SONG ,  Jianmin LI ,  Shangmin SUN ,  Yulan LI ,  Chunguang ZONG ,  Jinning LIANG ,  Sheng TANG

IPC: G01V5/00

CPC classification number: G01V5/0066 ,  G01V5/0016

Abstract: A mobile inspection system comprises: a stand; a ray source mounted to the stand and configured to generate a ray; a substantially inverted L-shaped detector beam comprising a horizontal detector beam portion and an upright detector beam portion connected to one end of the horizontal detector beam portion; a plurality of detectors configured to receive the ray emitted from the ray source, the plurality of detectors being disposed to at least one of the horizontal detector beam portion and the upright detector beam portion; and a drive device disposed to the stand, connected with the other end of the horizontal detector beam portion, and configured to drive the detector beam to rotate around an upright axis, wherein the ray source and the detector beam rotate synchronously.

Abstract translation: 移动检查系统包括：支架; 射线源，安装到所述支架并且被配置成产生射线; 基本上是倒L形的检测器束，包括水平检测器束部分和连接到水平检测器光束部分的一端的直立检测器光束部分; 多个检测器，被配置为接收从所述射线源发射的射线，所述多个检测器设置在所述水平检测器光束部分和所述直立检测器光束部分中的至少一个上; 以及驱动装置，其设置在所述支架上，与所述水平检测器梁部分的另一端连接，并且构造成驱动所述检测器梁围绕直立轴线旋转，其中所述射线源和所述检测器梁同步旋转。