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1. 发明公开

EP4369056A1 CHECK SYSTEM AND METHOD 审中-实审
公开(公告)号：EP4369056A1
公开(公告)日：2024-05-15
申请号：EP22836955.9
申请日：2022-07-06
申请人： Tsinghua University , Nuctech Company Limited
发明人： CHEN, Zhiqiang , ZHANG, Li , HUANG, Qingping , ZHOU, Yong , DING, Hui , JIN, Xin , JI, Chao
IPC分类号： G01V5/00
摘要： Provided are an inspection method, and an inspection system including: at least one ray source (100); a detector assembly (200) and a conveying device (300) for carrying a to-be-inspected object (10). At least one ray source (100) and the detector assembly (200) may move in a traveling direction relative to the conveying device (300), so that the to-be-inspected object (10) may enter an inspection region (30). When viewed along a central axis (AX) of the inspection region (30), at least one ray source (100) may translate between scanning positions, and a translation distance of at least one ray source (100) between two adjacent scanning positions is greater than a spacing between adjacent target spots (120) of each ray source (100). When at least one ray source (100) is located at one scanning position, at least one ray source (100) and the detector assembly (200) move in the traveling direction relative to the conveying device (300) and at least one ray source (100) emits X-rays. After moving a predetermined distance, at least one ray source (100) translates to another scanning position.

2. 发明公开

EP4365641A1 INSPECTION SYSTEM AND METHOD 审中-实审
公开(公告)号：EP4365641A1
公开(公告)日：2024-05-08
申请号：EP22836961.7
申请日：2022-07-06
申请人： Nuctech Company Limited , Tsinghua University
发明人： ZHANG, Li , CHEN, Zhiqiang , HUANG, Qingping , DING, Hui , ZHOU, Yong , JIN, Xin , YAO, Liming
IPC分类号： G01V5/00 , G01N23/046
CPC分类号： G01V5/00 , G01N23/046
摘要： An inspection system and method, the inspection system includes: a carrying device, at least one ray source (100) and a detector assembly (200). The at least one ray source (100) and the detector assembly (200) are lifted or lowered along a central axis of the carrying device (300) relative to the carrying device (300). When viewed along the central axis, the at least one ray source (100) is translatable between a plurality of scanning positions relative to the carrying device (300). When the at least one ray source (100) is at one of the scanning positions relative to the carrying device (300), the at least one ray source (100) and the detector assembly (200) are lifted or lowered relative to the carrying device (300) along the central axis, and the at least one ray source (100) emits X-rays; and when the at least one ray source (100) and the detector assembly (200) are lifted or lowered a predetermined distance relative to the carrying device (300), the at least one ray source (100) translates to another one of the scanning positions relative to the carrying device (300). The inspection system further reconstructs a three-dimensional scanning image of the object to be inspected based on detection data of the detector assembly (200).

3. 发明公开

EP4234452A1 AUTOMATIC TRAY SUPPLY APPARATUS, TRAY ORGANIZATION TABLE HAVING SAME, AND SECURITY SYSTEM 审中-实审
公开(公告)号：EP4234452A1
公开(公告)日：2023-08-30
申请号：EP21884850.5
申请日：2021-09-27
申请人： Nuctech Company Limited , Tsinghua University
发明人： CHEN, Zhiqiang , ZHANG, Li , LIANG, Jinning , HUANG, Qingping , HONG, Mingzhi , LU, Yanhua , LI, Bo , LI, Yue , WENG, Majie
IPC分类号： B65G37/02
摘要： An automatically tray feeding device (1), a tray sorting table including the same and a security inspection system including the same are provided. The automatically tray feeding device (1) includes: at least one conveying mechanism (10) configured to convey a tray (80) at different heights; at least one elevating mechanism (20) configured to move a tray (80) on a conveying mechanism (10) at a first height to a conveying mechanism (10) at a second height, the first height being different from the second height; and a sorting table frame (30) configured to carry the at least one conveying mechanism (10) and the at least one elevating mechanism. (20).

4. 发明公开

EP4160276A1 CT SCANNING DEVICE 审中-实审
公开(公告)号：EP4160276A1
公开(公告)日：2023-04-05
申请号：EP21813817.0
申请日：2021-05-24
申请人： Tsinghua University , Nuctech Company Limited
发明人： CHEN, Zhiqiang , ZHANG, Li , HUANG, Qingping , HONG, Mingzhi , ZHANG, Liguo , LI, Guipei
IPC分类号： G01V5/00 , G01N23/046
摘要： There is provided a CT scanning apparatus, including: a support frame; a slip ring rotatably mounted on the support frame; a driving mechanism mounted on the support frame, wherein the driving mechanism includes a driving wheel; a plurality of guide wheels mounted on the support frame; and an endless belt enclosing a closed periphery, wherein the endless belt is in contact with the slip ring, the driving wheel and the guide wheels, so that the driving wheel drives the slip ring and the guide wheels to rotate through the endless belt. The slip ring is in contact with the endless belt on an outer side of the periphery. During mounting, repairing or replacing the endless belt, other components at an outer periphery of the slip ring are not required to be completely removed, so that the operation time of combining the endless belt with the slip ring or removing the endless belt from the slip ring may be significantly shortened.

5. 发明公开

EP3901669A1 CT SYSTEM AND DETECTION DEVICE FOR CT SYSTEM 审中-公开
公开(公告)号：EP3901669A1
公开(公告)日：2021-10-27
申请号：EP19897922.1
申请日：2019-09-10
申请人： Nuctech Company Limited , Tsinghua University
发明人： ZHANG, Li , CHEN, Zhiqiang , HUANG, Qingping , SUN, Yunda , JIN, Xin , SHEN, Le , LI, Liang , ZHAO, Tiao
IPC分类号： G01V5/00 , G01N23/046
摘要： The present application discloses a CT system and a detection apparatus for the CT system. The detection apparatus includes: a high-energy detector assembly including a plurality of rows of high-energy detectors arranged along a predetermined trajectory; a low-energy detector assembly including a plurality of rows of low-energy detectors arranged at intervals along the predetermined trajectory, the low-energy detector assembly and the high-energy detector assembly being disposed in a stack; a number of rows of the low-energy detectors is smaller than a number of rows of the high-energy detectors; and each row of the low-energy detectors covers a row of the high-energy detectors. According to the CT system and the detection apparatus for the CT system provided by the embodiments of the present application, the ability to distinguish materials is improved.

6. 发明公开

EP3495763A1 INTELLIGENT EXPLOSION-PROOF TABLE 有权
公开(公告)号：EP3495763A1
公开(公告)日：2019-06-12
申请号：EP18211530.3
申请日：2018-12-11
申请人： Nuctech Company Limited , Tsinghua University
发明人： ZHANG, Li , PENG, Gang , HUANG, Qingping , DOU, Jianqing , WANG, Yandi , YANG, Kun
IPC分类号： F42D5/04 , F42D5/045
摘要： The present disclosure provides an intelligent explosion-proof table, including a worktable, an explosion-proof box (2); the worktable (1) has a window (20) passing through in the vertical direction. The explosion-proof box (2) with an open top is arranged under the window (20) of the worktable. A lifting plate (18) which can be moved up and down and a support mechanism (11) for driving the lifting plate (18) to be lifted are provided inside the explosion-proof box (2). The lifting plate (18) is used for placing a danger source and matches with the window (20) and is capable of being raised into the window (20).

7. 发明公开

EP3349220A1 GRATING AND RADIATION IMAGING DEVICE 审中-公开
公开(公告)号：EP3349220A1
公开(公告)日：2018-07-18
申请号：EP16843540.2
申请日：2016-08-04
申请人： Tsinghua University , Nuctech Company Limited
发明人： ZHANG, Li , HONG, Mingzhi , HUANG, Qingping , SHEN, Le
IPC分类号： G21K1/06
CPC分类号： G21K1/06 , G02B5/1838 , G21K2201/067
摘要： The disclosure relates to a grating and a radiation imaging device. The grating comprises a plurality of stacked grating elements (1). The grating elements (1) are stacked to form a grid. The grating element (1) comprises a first sheet (11, 21) and a second sheet (12, 22) having two parallel planes. The second sheet (12, 22) is stacked at the first sheet (11, 21) in a length direction of the first sheet (11, 21). The first sheet (11, 21) is almost impervious to radiation. The present disclosure stacks the sheets having different specifications together to form the grating with uniform grating slits, such that there is no limitation on the thickness of the grating and the grating can be used along with high-energy radiations.

8. 发明公开

EP2871465A1 VEHICLE-MOUNTED RADIATION INSPECTION SYSTEM 有权
标题翻译： FAHRZEUGMONTIERTESSTRAHLUNGSPRÜFSYSTEM
公开(公告)号：EP2871465A1
公开(公告)日：2015-05-13
申请号：EP13812825.1
申请日：2013-07-02
申请人： Nuctech Company Limited , Tsinghua University
发明人： LI, Jianmin , LIU, Yinong , LI, Yulan , ZONG, Chunguang , GONG, Hui , HUANG, Qingping , YU, Weifeng
IPC分类号： G01N23/04
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体，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质量同时，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。

9. 发明公开

EP4368980A1 INSPECTION SYSTEM AND METHOD 审中-实审
公开(公告)号：EP4368980A1
公开(公告)日：2024-05-15
申请号：EP22836962.5
申请日：2022-07-06
申请人： Nuctech Company Limited , Tsinghua University
发明人： ZHANG, Li , CHEN, Zhiqiang , HUANG, Qingping , DING, Hui , ZHOU, Yong , JIN, Xin , YAO, Liming
IPC分类号： G01N23/10 , G01N23/04
CPC分类号： G01V5/00 , G01N23/046 , G01N23/10 , G01N23/04
摘要： Provided are an inspection system and an inspection method, the inspection system includes: a carrying device (300); at least one ray source (100) each includes a separate housing (110) to define a vacuum space and target spots enclosed within the housing (110), and a detector assembly (200). The at least one ray source (100) is rotatable between a plurality of scanning positions around a rotation axis relative to the carrying device (300). The at least one ray source (100) and the detector assembly (200) may be lifted or lowered along the rotation axis relative to the carrying device (300). When the at least one ray source (100) is located at one of scanning positions relative to the carrying device (300), the at least one ray source (100) and the detector assembly (200) are lifted or lowered along the rotation axis relative to the carrying device (300) and the at least one ray source (100) emits X-rays. After the at least one ray source (100) and the detector assembly (200) are lifted or lowered a predetermined distance relative to the carrying device (300), the at least one ray source (100) rotates around the rotation axis relative to the carrying device (300) to another one of scanning positions.

10. 发明公开

EP4368979A1 RAY SCANNING DEVICE 审中-实审
公开(公告)号：EP4368979A1
公开(公告)日：2024-05-15
申请号：EP22837013.6
申请日：2022-07-07
申请人： Tsinghua University , Nuctech Company Limited
发明人： CHEN, Zhiqiang , ZHANG, Li , HUANG, Qingping , ZHOU, Yong , ZHAO, Zhenhua , DING, Hui , JIN, Xin , JI, Chao
IPC分类号： G01N23/046 , A61B6/03 , G01V5/00
摘要： A ray scanning device, comprising a conveying device (1) for transporting a tested object (6) through a scanning area of the ray scanning device; a ray source (3) comprising a plurality of ray source modules (31, 32, 33, 34), each of the ray source modules (31, 32, 33, 34) comprising at least one ray source point; observing from the conveying direction of the tested object (6), the plurality of ray source modules (31, 32, 33, 34) being arranged around the scanning area in a non-closed structure having an opening on one side of the scanning area; and a detector (4) for detecting rays transmitted through the tested object (6) during scanning and comprising a plurality of detector groups (41, 42, 43, 44), the end portions of the plurality of detector groups (41, 42, 43, 44) being connected to each other and arranged around the scanning area in a non-closed structure having an opening on one side of the scanning area; the opening of the non-closed structure of the ray source (3) being arranged opposite to the opening of the non-closed structure of the detector (4). The plurality of detector groups (41, 42, 43, 44) of the detector (4) are fixed in a same plane perpendicular to the conveying direction of the tested object (6), and the plurality of ray source modules (31, 32, 33, 34) of the ray source (3) are arranged in a plurality of different planes perpendicular to the conveying direction of the tested object (6)

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