公开(公告)号：US20240411045A1

公开(公告)日：2024-12-12

申请号：US18716943

申请日：2022-12-16

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

Inventor： Shangmin SUN ,  Chunguang ZONG ,  Xuejing YANG ,  Xuping FAN ,  Quanwei SONG ,  Junping SHI ,  Hui MENG ,  Yang YANG ,  Weifeng YU ,  Ying LI ,  Dongyu WANG ,  Lei LIU ,  Bicheng LIU ,  Haojie CHI

IPC: G01V5/22 ,  G01N23/04

Abstract: A mobile radiation inspection apparatus includes a vehicle body, a traveling mechanism, a boom assembly, a first imaging device, and a second imaging device. The boom assembly is mounted on the vehicle body and is configured to switch between an inspection state and a transportation state. The first imaging device includes a first ray source and a first ray detector both mounted on the boom assembly. The first ray source is positioned at the top of an inspection channel. The second imaging device includes a second ray source and a second ray detector. The second ray detector cooperates with the second ray source to detect rays emitted by the second ray source, and the second ray source is positioned on a side surface of the inspection channel. The mobile radiation inspection apparatus implements multi-angle and multi-mode scanning.

公开(公告)号：US20180149769A1

公开(公告)日：2018-05-31

申请号：US15798569

申请日：2017-10-31

Applicant: Nuctech Company Limited

Inventor： Tao JIANG ,  Yanwei XU ,  Shangmin SUN ,  Yu HU ,  Weifeng YU ,  Xuejing YANG ,  Youai YU ,  Ke LI ,  Defang MENG

IPC: G01V8/26

Abstract: A mobile scanning inspection system, comprising a vehicle body and an inspection arm including a cross arm and a vertical arm, wherein a first inspection device and a second inspection device are provided on the cross arm; the first inspection device is on the side close to the vehicle body and it emits a first laser inspection plane parallel to the side plane of the vehicle body, and the length of the longest portion of the first laser inspection plane is longer than the length of the vehicle body; the second inspection device is provided on the side close to the vertical arm and it emits a second laser inspection plane parallel to the side plane of the vehicle body and the second laser inspection plane is centered on the vertical arm, and extends a first preset distance and a second preset distance forward and backward.

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.