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11. 发明授权

US09453935B2 Gantry configuration for combined mobile radiation inspection system 有权
标题翻译：组合式移动辐射检测系统的龙门架配置
公开(公告)号：US09453935B2
公开(公告)日：2016-09-27
申请号：US14412512
申请日：2013-07-02
申请人： Nuctech Company Limited , Tsinghua University
发明人： Jianmin Li , Yuanjing Li , Chunguang Zong , Quanwei Song , Tao Xue , Qingjun Zhang , Sheng Tang
IPC分类号： G01V5/00 , G01N23/04 , F16M11/42
CPC分类号： G01V5/0016 , F16M11/425 , G01N23/04
摘要： The present invention discloses a gantry configuration for a combined mobile radiation inspection system comprising a first arm frame, a second arm frame and a third arm frame. The first, second and third arm frames define a scanning channel to allow an inspected object to pass therethrough. The gantry configuration for the combined mobile radiation inspection system further comprises a position sensing device configured to detect a position error between the first arm frame and the second arm frame; and a controller configured to control a moving speed of at least one of the first arm frame and the second arm frame based on the detected position error, so that the position error between the first arm frame and the second arm frame is equal to zero. Compared with the prior art, the present invention is advantageous at least in that an automatic deviation correction device is provided on the gantry arm frame, and thus the position error between both side arm frames can be automatically controlled to zero, so that the gantry arm frame can be effectively prevented from being subjected to a force and deforming, and the radiation detector can receive the full ray, thereby improving the imaging quality.
摘要翻译：本发明公开了一种用于组合的移动辐射检查系统的机架结构，其包括第一臂架，第二臂架和第三臂架。第一，第二和第三臂架限定扫描通道以允许被检查物体通过。组合移动辐射检查系统的台架结构还包括一个位置检测装置，其配置成检测第一臂架和第二臂架之间的位置误差; 以及控制器，其被配置为基于所检测的位置误差来控制所述第一臂框架和所述第二臂架中的至少一个的移动速度，使得所述第一臂框架和所述第二臂架之间的位置误差等于零。与现有技术相比，本发明至少是在台架臂架上设置自动偏差校正装置是有利的，因此两侧臂架之间的位置误差可被自动控制为零，使得机架臂可以有效地防止框架受到力和变形，并且放射线检测器可以接收全光线，从而提高成像质量。

12. 发明授权

US09448188B2 Vehicular radiation inspection system 有权
标题翻译：车载辐射检查系统
公开(公告)号：US09448188B2
公开(公告)日：2016-09-20
申请号：US14412516
申请日：2013-07-02
申请人： Nuctech Company Limited , Tsinghua University
发明人： Jianmin Li , Yinong Liu , Yulan Li , Chunguang Zong , Hui Gong , Qingping Huang , Weifeng Yu
IPC分类号： G01N23/10 , G01N23/04 , G01V5/00
CPC分类号： G01N23/10 , G01N23/04 , G01N2223/301 , G01N2223/308 , G01V5/0016 , G01V5/0066
摘要： The present invention discloses a vehicular radiation inspection system comprising a mobile vehicle body, a detection arm, a radiation source and a detector. The vehicular radiation inspection system further comprises a following mechanism separated from the detection arm. The following mechanism contains radiation protection material, and the following mechanism follows the detection arm to move in a non-contact manner during inspection of the inspected object, so as to prevent radiation leakage. In the present invention, it does not need to infuse radiation protection material having a high density, such as lead, into the detection arm. Therefore, it can effectively decrease the weight of the detection arm, and it does not need to provide a balance counterweight on the mobile vehicle body on which the detection arm is carried, thereby effectively solving the problem that the vehicular radiation inspection system has an excessively large mass. Meanwhile, in the present invention, the moving process of the following mechanism is accurately controlled, so as to prevent the following mechanism from hitting the detection arm.
摘要翻译：本发明公开了一种包括移动车身，检测臂，辐射源和检测器的车辆辐射检查系统。车辆辐射检查系统还包括与检测臂分离的跟随机构。以下机构包含辐射防护材料，并且在检查被检查物体的检查期间，跟随检测臂的机构以非接触的方式移动，以防止辐射泄漏。在本发明中，不需要将诸如铅的高密度的辐射防护材料注入到检测臂中。因此，能够有效地降低检测臂的重量，并且不需要在携带检测臂的移动体上提供平衡配重，从而有效地解决了车辆用辐射检查系统过度的问题大量。同时，在本发明中，精确地控制以下机构的移动过程，以防止以下机构撞击检测臂。

13. 发明申请

US20150192689A1 GANTRY CONFIGURATION FOR COMBINED MOBILE RADIATION ISPECTION SYSTEM 有权
标题翻译：用于组合的移动辐射系统的GANTRY配置
公开(公告)号：US20150192689A1
公开(公告)日：2015-07-09
申请号：US14412512
申请日：2013-07-02
申请人： Nuctech Company Limited , Tsinghua University
发明人： Jianmin Li , Yuanjing Li , Chunguang Zong , Quanwei Song , Tao Xue , Qingjun Zhang , Sheng Tang
IPC分类号： G01V5/00 , F16M11/42
CPC分类号： G01V5/0016 , F16M11/425 , G01N23/04
摘要： The present invention discloses a gantry configuration for a combined mobile radiation inspection system comprising a first arm frame, a second arm frame and a third arm frame. The first, second and third arm frames define a scanning channel to allow an inspected object to pass therethrough. The gantry configuration for the combined mobile radiation inspection system further comprises a position sensing device configured to detect a position error between the first arm frame and the second arm frame; and a controller configured to control a moving speed of at least one of the first arm frame and the second arm frame based on the detected position error, so that the position error between the first arm frame and the second arm frame is equal to zero. Compared with the prior art, the present invention is advantageous at least in that an automatic deviation correction device is provided on the gantry arm frame, and thus the position error between both side arm frames can be automatically controlled to zero, so that the gantry arm frame can be effectively prevented from being subjected to a force and deforming, and the radiation detector can receive the full ray, thereby improving the imaging quality.
摘要翻译：本发明公开了一种用于组合的移动辐射检测系统的机架结构，其包括第一臂架，第二臂架和第三臂架。第一，第二和第三臂架限定扫描通道以允许被检查物体通过。组合移动辐射检查系统的台架结构还包括一个位置检测装置，其配置成检测第一臂架和第二臂架之间的位置误差; 以及控制器，其被配置为基于所检测的位置误差来控制所述第一臂框架和所述第二臂架中的至少一个的移动速度，使得所述第一臂框架和所述第二臂架之间的位置误差等于零。与现有技术相比，本发明至少是在台架臂架上设置自动偏差校正装置是有利的，因此两侧臂架之间的位置误差可被自动控制为零，使得机架臂可以有效地防止框架受到力和变形，并且放射线检测器可以接收全光线，从而提高成像质量。

14. 发明授权

US11327198B2 CT inspection system and CT imaging method for a reciprocating swinging process of a radioactive source device and a detection device around an object at non-uniform speed to collect effective detection data 有权
公开(公告)号：US11327198B2
公开(公告)日：2022-05-10
申请号：US16234621
申请日：2018-12-28
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Xiulin Ni , Jianmin Li , Haitian Tan , Yulan Li , Weifeng Yu , Yuanjing Li , Hejun Zhou , Zhiqiang Chen , Chunguang Zong , Li Zhang
IPC分类号： G01N23/046 , G01V5/00 , A61B6/03 , A61B6/00 , G01N23/18
摘要： The present disclosure relates to the technical field of CT detection, in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure includes a scanning device and an imaging device, wherein the scanning device having a radioactive source device and a detection device is configured to rotate at a nonuniform speed in at least partial process of scanning an object to be detected; and the imaging device generates a CT image based on effective detection data, wherein the effective detection data refer to data acquired each time the detection device rotates by a preset angle. In the present disclosure, the imaging device of the CT inspection system generates a CT image based on data acquired each time the detection device rotates by a preset angle, which, compared with traditional image collection solutions, can effectively reduce image deformation and improve accuracy of detection results.

15. 发明授权

US10739491B2 Radiation inspection system and radiation inspection method 有权
公开(公告)号：US10739491B2
公开(公告)日：2020-08-11
申请号：US16232058
申请日：2018-12-26
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Yigang Yang , Dongyu Wang , Hao Yu , Quanwei Song , Jianmin Li , Weizhen Wang , Yulan Li , Chunguang Zong , Qinjian Zhang , Ming Zeng , Zhiqiang Chen , Yuanjing Li , Li Zhang
IPC分类号： G01V5/00 , G01N23/20 , G21K1/04
摘要： The present disclosure discloses a radiation inspection system and a radiation inspection method. The radiation inspection system comprises a radiation source and a beam modulating device. The beam modulating device comprises a first collimating structure disposed at a beam exit side of the radiation source and a second collimating structure disposed at a beam exit side of the first collimating structure. The second collimating structure is movable relative to the first collimating structure to change a relative position of the first collimating port of the first collimating structure with the second collimating port of the second collimating structure, and the beam modulating device is shifted between a first operational state in which the beam modulating device modulates an initial beam into a fan beam, and a second operational state in which the beam modulating device modulates the initial beam into a pencil beam variable in position.

16. 发明授权

US10338236B2 Radiation detection apparatus and method, data processing method and processor 有权
公开(公告)号：US10338236B2
公开(公告)日：2019-07-02
申请号：US15719571
申请日：2017-09-29
申请人： NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Yuanjing Li , Ziran Zhao , Jianmin Li , Yulan Li , Weibin Zhu , Xiang Zou , Qingjun Zhang , Chunguang Zong , Xiaolin Zhao , Shuwei Li , Junxiao Wang
IPC分类号： G01T1/24 , G01T1/17
摘要： This disclosure provides a radiation detection apparatus and a method, a data processing method and a processor, which relates to the field of radiation detection technology. Wherein, the radiation detection apparatus of this disclosure comprises: a radiation detector which generates an electrical signal by interacting with X-rays; an Analog-to-Digital Converter (ADC) which is coupled to the radiation detector and transmits the electrical signal to a waveform data; and a data processor which receives the waveform data from the ADC, determines the number of single photon signals according to the waveform data, and determines whether an integral signal and/or a count signal of the waveform data will be used for imaging according to the number of the single photon signals.

17. 发明申请

US20180172604A1 MOVABLE RAY INSPECTION SYSTEM AND RAY INSPECTION METHOD FOR A CONTAINER 审中-公开
公开(公告)号：US20180172604A1
公开(公告)日：2018-06-21
申请号：US15827739
申请日：2017-11-30
申请人： Nuctech Company Limited , Tsinghua University
发明人： Chunguang Zong , Ying Li , Hejun Zhou , Quanwei Song , Jianmin Li , Yulan Li , Yuanjing Li , Li Zhang , Zhiqiang Chen
IPC分类号： G01N21/90 , G01N23/04 , G01N21/01
CPC分类号： G01N21/9081 , G01N21/01 , G01N23/04 , G01V5/0016 , G01V5/0025
摘要： A movable ray inspection system used to be mounted in a container yard to inspect an object within a container is provided. The movable 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 movable ray inspection system is adapted to be stacked in the container yard.

18. 发明授权

US09910184B2 Alignment system and method for container or vehicle inspection system 有权
公开(公告)号：US09910184B2
公开(公告)日：2018-03-06
申请号：US14965978
申请日：2015-12-11
申请人： Tsinghua University , Nuctech Company Limited
发明人： 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分类号： G01V5/00 , G01N23/04 , G21K1/02
CPC分类号： G01V5/0016 , G01V5/0008 , G21K1/02
摘要： 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.

19. 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.

20. 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.

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