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1. 发明公开

EP4120159A1 METHOD AND APPARATUS FOR GENERATING RISK ASSESSMENT MODEL AND RISK ASSESSMENT METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4120159A1
公开(公告)日：2023-01-18
申请号：EP21767570.1
申请日：2021-02-23
申请人： Tsinghua University , Nuctech Company Limited
发明人： CHEN, Zhiqiang , ZHANG, Li , LI, Yuanjing , XING, Yuxiang , CHE, Jiahang , ZHANG, Yan , LI, Qiang , LI, Wei , FU, Gang
IPC分类号： G06Q10/06
摘要： The embodiments of the present disclosure disclose a method of generating a risk assessing model, including: preprocessing a plurality of declaration information to obtain a plurality of first entries included in the plurality of declaration information (S 110); performing a graph network analysis on information related to the plurality of first entries so as to generate a first result (S120); performing a feature engineering processing on the plurality of first entries so as to generate a second result (S130); and training a neural network by using the first result and the second result so as to obtain the risk assessing model (S140).

2. 发明公开

EP3882816A1 SEMANTIC-BASED METHOD AND APPARATUS FOR RETRIEVING PERSPECTIVE IMAGE 审中-实审
公开(公告)号：EP3882816A1
公开(公告)日：2021-09-22
申请号：EP21162895.3
申请日：2021-03-16
申请人： Tsinghua University , Nuctech Company Limited
发明人： ZHANG, Li , CHEN, Zhiqiang , LI, Yuanjing , XING, Yuxiang , MENG, Fanhua , LI, Qiang , LI, Wei , FU, Gang
IPC分类号： G06K9/00 , G06K9/32 , G06K9/62 , G06T7/00
摘要： A semantic-based method and apparatus for retrieving a perspective image, an electronic device and a computer-readable storage medium are provided. The method includes: obtaining a perspective image for a space containing an inspected object therein; performing a semantic division on the perspective image using a first method, to obtain a plurality of semantic region units; constructing a feature extraction network using a second method; extracting, based on the perspective image and each of the plurality of semantic region units, a feature of each semantic region unit using the feature extraction network; and retrieving, based on the feature of each semantic region unit, an image most similar to the semantic region unit from an image feature database, to assist in determining an inspected object in the semantic region unit.

3. 发明授权

EP3474292B1 PHOTONEUTRON SOURCE AND NEUTRON INSPECTION SYSTEM 有权
公开(公告)号：EP3474292B1
公开(公告)日：2020-09-16
申请号：EP18201432.4
申请日：2018-10-19
申请人： Tsinghua University , Nuctech Company Limited
发明人： YANG, Yigang , WANG, Dongyu , YU, Hao , WANG, Weizhen , GUAN, Weiqiang , YIN, Wei , LI, Wei , SONG, Quanwei , LI, Yulan , ZONG, Chunguang , LIU, Yaohong , LI, Yuanjing , CHEN, Zhiqiang , ZHANG, Li , LI, Jianmin
IPC分类号： G21G4/02 , G01N23/222

4. 发明公开

EP3474292A1 PHOTONEUTRON SOURCE AND NEUTRON INSPECTION SYSTEM 有权
公开(公告)号：EP3474292A1
公开(公告)日：2019-04-24
申请号：EP18201432.4
申请日：2018-10-19
申请人： Tsinghua University , Nuctech Company Limited
发明人： LI, Jianmin , WANG, Dongyu , YU, Hao , WANG, Weizhen , GUAN, Weiqiang , YIN, Wei , LI, Wei , SONG, Quanwei , LI, Yulan , ZONG, Chunguang , LIU, Yaohong , LI, Yuanjing , CHEN, Zhiqiang , ZHANG, Li , YANG, Yigang
IPC分类号： G21G4/02 , G01N23/222
摘要： The present invention 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, wherein the electron beam accelerated by the electron accelerating tube bombards the X-ray converting target to generate X-rays; a photoneutron target, wherein the X-rays enters the photoneutron target to generates photoneutrons; and a neutron modulation housing provided outside the photoneutron target, wherein the neutron modulation housing comprises a neutron collimation port for outputting photoneutrons. The present invention may directly output a desired neutron beam from the neutron collimation port of the photoneutron source.

5. 发明公开

EP3290962A1 MOVABLE ARTICLE INSPECTION SYSTEM AND INSPECTION METHOD 有权
标题翻译：可移动物品检查系统和检查方法
公开(公告)号：EP3290962A1
公开(公告)日：2018-03-07
申请号：EP17188241.8
申请日：2017-08-29
申请人： Nuctech Company Limited
发明人： CHEN, Zhiqiang , HU, Yu , YANG, Xuejing , WANG, Qiangqiang , DU, Long , LI, Wei , LI, Yuanjing , SUN, Shangmin
IPC分类号： G01V5/00
CPC分类号： G01V5/0066
摘要： The present invention relates to a movable article inspection system and inspection method, wherein the inspection system comprises: a first automated guided vehicle (5), a radiation source (1) and a detection mechanism (3); said radiation source (1) and said detection mechanism (3) are both mounted on said first automated guided vehicle (5), said first automated guided vehicle (5) is able to move to a preset scanning inspection position, such that scanning inspection of said article to be scanned is effectuated by means of relative movement between an article to be scanned and the first automated guided vehicle (5). Such movable inspection system based on an automated guided vehicle is capable of making full use of an existing automated guided vehicle and its control system to make a movement path of the inspection system more flexible, and capable of effectuating centralized control and management of the inspection system, so that it can improve the inspection efficiency, and save the labor cost. In addition, there is also no need to renovate a site of the automated guided vehicle, and there is no need to occupy a fixed area.
摘要翻译：本发明涉及一种可移动物品检查系统和检查方法，其中该检查系统包括：第一自动引导车辆（5），辐射源（1）和检测机构（3）;以及第二自动引导车辆。所述辐射源（1）和所述检测机构（3）都安装在所述第一自动引导车辆（5）上，所述第一自动引导车辆（5）能够移动到预设的扫描检查位置，所述待扫描物品通过待扫描物品与第一自动引导车辆（5）之间的相对运动实现。这种基于自动引导车辆的可移动检查系统能够充分利用现有的自动引导车辆及其控制系统，使检查系统的移动路径更加灵活，并且能够实现对检查系统的集中控制和管理，这样可以提高检测效率，节省人工成本。另外，也无需翻新自动引导车辆的地点，并且不需要占用固定的区域。

6. 发明公开

EP3648327A1 FILAMENT POWER SUPPLY FOR ELECTRON ACCELERATOR AND ELECTRON ACCELERATOR 有权
公开(公告)号：EP3648327A1
公开(公告)日：2020-05-06
申请号：EP19205907.9
申请日：2019-10-29
申请人： Nuctech Company Limited
发明人： LIU, Jinsheng , LIU, Yaohong , JIA, Wei , YAN, Xinshui , LI, Wei
IPC分类号： H02M3/156 , H01J1/13 , H05G1/10
摘要： The present disclosure provides a filament power supply for an electron accelerator and an electron accelerator. The filament power supply includes: a rectifier circuit configured to convert a power frequency AC voltage signal into a DC voltage signal; an inverter circuit configured to convert the DC voltage signal into an AC voltage signal and output the AC voltage signal; a sampling circuit configured to sample at least one of a current or a voltage of the AC voltage signal to obtain at least one of a current sampling signal or a voltage sampling signal; a pulse width modulation control chip configured to adjust a duty cycle of a pulse width modulation signal output by the pulse width modulation control chip until a voltage of the current sampling signal is equal to that of a reference current signal, or a voltage of the voltage sampling signal is equal to that of a reference voltage signal; and a modulation circuit configured to modulate the power frequency AC voltage signal according to the pulse width modulation signal to obtain a modulation signal and output the power frequency AC voltage signal and the modulation signal to the inverter circuit to trigger the inverter circuit to convert the DC voltage signal into the AC voltage signal.

7. 发明公开

EP3461006A2 PROTECTION CIRCUIT, OSCILLATION COMPENSATION CIRCUIT AND POWER SUPPLY CIRCUIT IN SOLID STATE PULSE MODULATOR 有权
公开(公告)号：EP3461006A2
公开(公告)日：2019-03-27
申请号：EP18190829.4
申请日：2018-08-24
申请人： Nuctech Company Limited
发明人： LIU, Yaohong , ZHAO, Ziran , LIU, Jinsheng , JIA, Wei , LI, Wei , YAN, Xinshui
IPC分类号： H03K17/06 , H03K3/57
CPC分类号： H03K17/08126 , H03K3/57 , H03K17/06 , H03K17/08128 , H03K17/567 , H03K2017/066 , H03K2217/0081
摘要： The present disclosure provides a gate protection circuit for an Insulated Gate Bipolar Transistor (IGBT), the IGBT being used as a switch device in a solid state pulse modulator based on the MARX generator principle, the gate protection circuit including: a voltage regulator configured to supply a stable voltage to an emitter of the IGBT with respect to the ground for a gate of the IGBT.

8. 发明公开

EP3290963A1 MOVABLE DIVIDED INSPECTION SYSTEM AND METHOD 有权
标题翻译：可移动分隔检查系统和方法
公开(公告)号：EP3290963A1
公开(公告)日：2018-03-07
申请号：EP17188243.4
申请日：2017-08-29
申请人： Nuctech Company Limited
发明人： CHEN, Zhiqiang , HU, Yu , WANG, Qiangqiang , DU, Long , LI, Wei , MA, Yuan , LI, Yuanjing , SUN, Shangmin
IPC分类号： G01V5/00
CPC分类号： G01N23/04 , G01V5/0066 , G05D1/0094 , G05D2201/0207
摘要： The present invention relates to a movable divided inspection system and method, wherein the scanning inspection system comprises a first radiation source (4), a first detection means, a first automated guided vehicle (1) and a second automated guided vehicle (2), said first radiation source (4) is mounted on said first automated guided vehicle (1), said first detection means is mounted on said second automated guided vehicle (2), said first automated guided vehicle (1) and said second automated guided vehicle (2) are able to drive said first radiation source (4) and said 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 said first automated guided vehicle (1) and said second automated guided vehicle (2), 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 (1) and said second automated guided vehicle (2). The scanning inspection system, which is flexible in movement, is adaptable to different demands of multiple operational conditions.
摘要翻译：本发明涉及一种可移动分割检查系统和方法，其中扫描检查系统包括第一辐射源（4），第一检测装置，第一自动引导车辆（1）和第二自动引导车辆（2）所述第一自动引导车辆（1）安装所述第一辐射源（4），所述第一探测装置安装在所述第二自动引导车辆（2）上，所述第一自动引导车辆（1）和所述第二自动引导车辆 2）能够将所述第一辐射源（4）和所述第一检测装置驱动到预设的扫描检查位置，以便在所述第一自动引导车辆（1）与所述第二自动引导车辆（1）之间形成扫描通道，所述第二自动引导车辆（2），使得通过所述待扫描物品相对于所述第一自动引导车辆（1）的相对运动来实现所述待扫描物品的扫描检查，并且所述第二自动引导车辆 nd自动导引车（2）。扫描检测系统运动灵活，可适应多种操作条件的不同需求。

9. 发明公开

EP3290385A1 QUAY CRANE COMPRISING CONTAINER INSPECTION SYSTEM 审中-实审
标题翻译： QUAY起重机包括集装箱检查系统
公开(公告)号：EP3290385A1
公开(公告)日：2018-03-07
申请号：EP17188249.1
申请日：2017-08-29
申请人： Nuctech Company Limited
发明人： CHEN, Zhiqiang , HU, Yu , WANG, Qiangqiang , DU, Long , LI, Wei , LI, Yuanjing , SUN, Shangmin , MA, Yuan
IPC分类号： B66C19/00 , B66C13/16 , G01V5/00
CPC分类号： G01V5/0066 , B66C13/16 , B66C19/002 , G01V5/0008
摘要： The present application relates to a quay crane (1) for hoisting a container (5) onto an automated guided vehicle (4), comprising a container inspection system (3) with a radiation source (31), a radiation detection apparatus (33), for performing a scanning inspection on said container (5) loaded on said vehicle (4). The present application, which does not need a special allocation of approach of the radiation source and the radiation detection apparatus, conveniently effectuates scanning inspection of a container, and improves the inspection efficiency.
摘要翻译：本发明涉及一种用于将集装箱（5）提升到自动引导车辆（4）上的码头起重机（1），包括具有辐射源（31）的集装箱检查系统（3），辐射检测设备（33），用于对装载在所述车辆（4）上的所述容器（5）执行扫描检查。本发明不需要放射源和放射线检测装置的特殊分配方法，便于对容器进行扫描检查，提高了检查效率。

10. 发明公开

EP3461006A3 PROTECTION CIRCUIT, OSCILLATION COMPENSATION CIRCUIT AND POWER SUPPLY CIRCUIT IN SOLID STATE PULSE MODULATOR 有权
公开(公告)号：EP3461006A3
公开(公告)日：2019-06-26
申请号：EP18190829.4
申请日：2018-08-24
申请人： Nuctech Company Limited
发明人： LIU, Yaohong , ZHAO, Ziran , LIU, Jinsheng , JIA, Wei , LI, Wei , YAN, Xinshui
IPC分类号： H03K17/06 , H03K3/57 , H03K17/0812
摘要： The present disclosure provides a gate protection circuit for an Insulated Gate Bipolar Transistor (IGBT), the IGBT being used as a switch device in a solid state pulse modulator based on the MARX generator principle, the gate protection circuit including: a voltage regulator configured to supply a stable voltage to an emitter of the IGBT with respect to the ground for a gate of the IGBT.

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