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1. 发明公开

US20230236150A1 TRACE DETECTION DEVICE 审中-公开
公开(公告)号：US20230236150A1
公开(公告)日：2023-07-27
申请号：US17999201
申请日：2021-05-14
申请人： Nuctech Company Limited , Tsinghua University
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Jianmin LI , Weiping ZHU , Qiufeng MA , Biao CAO , Lili YAN , Ge LI , Nei YANG
IPC分类号： G01N27/622 , G01N30/20
CPC分类号： G01N27/622 , G01N30/20 , G01N2030/025 , G01N2030/201
摘要： A trace detection device including: an ion mobility tube ; a sampling gas path module ; a sample injection gas path module configured to introduce a sample carrier gas containing a sample collected by the sampling gas path module toward the ion mobility tube; and a gas chromatography apparatus capable of pre-separating the sample carrier gas, so as to form a pre-separated sample carrier gas; wherein the sample injection gas path module is further configured to be capable of switching between a first mode and a second mode, in the first mode, the sample injection gas path module introduces the sample carrier gas into the ion mobility tube; and in the second mode, the sample injection gas path module introduces the sample carrier gas into the gas chromatography apparatus to pre-separate the sample carrier gas, and the pre-separated sample carrier gas is introduced into the ion mobility tube.

2. 发明申请

US20210025836A1 SUBSTANCE IDENTIFICATION DEVICE AND METHOD FOR EXTRACTING STATISTICAL FEATURE BASED ON CLUSTER ANALYSIS 有权
公开(公告)号：US20210025836A1
公开(公告)日：2021-01-28
申请号：US16935415
申请日：2020-07-22
申请人： Tsinghua University , NUCTECH COMPANY LIMITED
发明人： Zhi ZENG , Xingyu PAN , Xuewu WANG , Junli LI , Ming ZENG , Jianmin LI , Ziran ZHAO , Jianping CHENG , Hao MA , Hui ZHANG , Hao YU , Bicheng LIU
IPC分类号： G01N23/201 , G01N23/02 , G06K9/62
摘要： The present disclosure provides a substance identification device and a substance identification method. The substance identification device comprises: a classifier establishing unit configured to establish a classifier based on scattering density values reconstructed for a plurality of known sample materials, wherein the classifier comprises a plurality of feature regions corresponding to a plurality of characteristic parameters for the plurality of known sample materials, respectively; and an identification unit for a material to be tested, configured to match the characteristic parameter of the material to be tested with the classifier, and to identify a type of the material to be tested by obtaining a feature region corresponding to the characteristic parameter of the material to be tested.

3. 发明申请

US20190206095A1 IMAGE PROCESSING METHOD, IMAGE PROCESSING DEVICE AND STORAGE MEDIUM 审中-公开
公开(公告)号：US20190206095A1
公开(公告)日：2019-07-04
申请号：US16235882
申请日：2018-12-28
申请人： Tsinghua University , NUCTECH COMPANY LIMITED
发明人： Yuxiang XING , Kaichao LIANG , Le SHEN , Li ZHANG , Hongkai YANG , Kejun KANG , Zhiqiang CHEN , Jianmin LI , Yinong LIU
IPC分类号： G06T11/00 , G06N3/08
CPC分类号： G06T11/003
摘要： An image processing method, comprising: acquiring, by a CT scanning system, projection data of an object; and processing, by using a convolutional neural network, the projection data, to acquire an estimated image of the object. The convolutional neural network comprises: a projection domain network for processing input projection data to obtain estimated projection data; an analytical reconstruction network layer for performing analytical reconstruction to obtain a reconstructed image; an image domain network for processing the reconstructed image to obtain an estimated image, a projection layer for performing a projection operation by using a system projection matrix of the CT scanning system, to obtain a projection result of the estimated image; and a statistical model layer for determining consistency among the input projection data, the estimated projection data, and the projection result of the estimated image based on a statistical model.

4. 发明申请

US20190204469A1 VEHICLE-MOUNTED TYPE BACK SCATTERING INSPECTION SYSTEM 审中-公开
公开(公告)号：US20190204469A1
公开(公告)日：2019-07-04
申请号：US16234632
申请日：2018-12-28
申请人： NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： 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分类号： G01V5/00 , G01N23/203
CPC分类号： G01V5/0025 , G01N23/203
摘要： The present disclosure discloses a vehicle-mounted type back scattering inspection system. The vehicle-mounted type back scattering inspection system includes a carriage and a back scattering imaging device, the scanning range of the back scattering imaging device is variable. As the scanning range of the back scattering imaging device of the present disclosure is variably set, the inspection range of the back scattering imaging device can be expanded.

5. 发明申请

US20190193691A1 FORK-ARM LIFT TRACTOR 审中-公开
公开(公告)号：US20190193691A1
公开(公告)日：2019-06-27
申请号：US16233398
申请日：2018-12-27
申请人： TSINGHUA UNIVERSITY , Nuctech Company Limited
发明人： Yuan HE , Jianmin LI , Hongqi LI , Yulan LI , Qiangqiang WANG , Yuanjing LI , Zhiqiang CHEN , Li ZHANG
IPC分类号： B60S13/00
CPC分类号： B60S13/00 , B60S5/00 , B62D49/02 , B62D49/0692
摘要： A fork-arm lift tractor includes a vehicle body, a supporting plate disposed above the vehicle body, a lifting device for driving the supporting plate to be lifted, a front and rear fork-arm assemblies, a front and rear fork-arm drive assemblies. The front fork-arm assembly includes two front fork-arms rotatably disposed at the supporting plate. The rear fork-arm assembly includes two rear fork-arms rotatably disposed at the supporting plate, and the front and rear fork-arms may be deployed or retracted from both sides of the supporting plate. The front fork-arm driving assembly includes a front transmission part, and a front power device disposed at the supporting plate and may drive the front transmission part to move horizontally linearly so as to rotate the two front fork-arms. The rear fork-arm driving assembly has almost the same structure of the front fork-arm driving assembly and is used to rotate the two rear fork-arms.

6. 发明申请

US20160178791A1 QUICK VEHICLE CHECK SYSTEM AND METHOD ADOPTING MULTI-DOSE REGIONAL SCANNING 审中-公开
标题翻译：快速车辆检查系统和采用多剂量区域扫描的方法
公开(公告)号：US20160178791A1
公开(公告)日：2016-06-23
申请号：US14972115
申请日：2015-12-17
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Ying LI , Jianmin LI , Tao SONG
IPC分类号： G01V5/00
摘要： A quick vehicle check system comprises a radiation source which produces a first X ray with a first dose and a second X ray with a second dose, wherein the first dose is smaller than the second dose, and the first X ray is used for checking a first part of a checked vehicle and the second X ray is used for checking a second part of the checked vehicle; a first sensor for detecting a set position of the checked vehicle; a second sensor for detecting a passing distance of the checked vehicle; and a control unit coupled with the first sensor and the second sensor, which receives the set position of the checked vehicle from the first sensor and receives the passing distance of the checked vehicle from the second sensor.
摘要翻译：快速车辆检查系统包括辐射源，其产生具有第一剂量的第一X射线和具有第二剂量的第二X射线，其中第一剂量小于第二剂量，并且第一X射线用于检查检查车辆的第一部分，并且第二X射线用于检查检查车辆的第二部分; 用于检测被检查车辆的设定位置的第一传感器; 用于检测被检查车辆的通过距离的第二传感器; 以及与第一传感器和第二传感器耦合的控制单元，其接收来自第一传感器的检查车辆的设置位置，并接收检查车辆与第二传感器的通过距离。

7. 发明申请

US20150048263A1 RADIATION PROTECTION DEVICE 有权
标题翻译：辐射防护装置
公开(公告)号：US20150048263A1
公开(公告)日：2015-02-19
申请号：US14459408
申请日：2014-08-14
申请人： Tsinghua University , Nuctech Company Limited
发明人： Kejun KANG , Yuanjing LI , Ying LI , Jianmin LI , Junli LI , Yanli DENG
IPC分类号： G21F3/00 , G21F1/04 , G21F1/02
CPC分类号： G21F3/00 , G01V5/0016 , G21F1/023 , G21F1/042
摘要： A radiation protection device is disclosed in the embodiment of the present invention. The radiation protection device is used for a system which is configured to perform safety inspection of a cargo or a vehicle by a ray. The radiation protection device comprising: at least one container, and a radiation protection part disposed within the container. The radiation protection material may comprise at least one of concrete, sandstone, and water, or the radiation protection part may comprise a steel-lead protection wall or a concrete protection wall. With the radiation protection device according to the embodiment of the present invention, after the container is transported to the site, it can be directly put in place to be capable of shielding rays without needing operation or with only simple operation. The amount of on-site work, construction time, and construction cost are low.
摘要翻译：在本发明的实施例中公开了一种辐射防护装置。辐射防护装置用于被配置为通过射线执行货物或车辆的安全检查的系统。辐射防护装置包括：至少一个容器和设置在容器内的辐射防护部分。辐射防护材料可以包括混凝土，砂岩和水中的至少一种，或者辐射防护部分可以包括钢 - 铅保护壁或混凝土保护壁。根据本发明的实施方式的放射线防护装置，在将容器运送到现场后，可以将其直接放置在能够屏蔽射线的地方，而无需操作或操作简单。现场工作量，施工时间和施工成本低。

8. 发明申请

US20220099601A1 RADIATION INSPECTION APPARATUS AND RADIATION INSPECTION METHOD 有权
公开(公告)号：US20220099601A1
公开(公告)日：2022-03-31
申请号：US17420681
申请日：2020-01-03
申请人： NUCTECH (BEIJING) COMPANY LIMITED , NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Zhiqiang CHEN , Yuanjing LI , Li ZHANG , Jianmin LI , Shangmin SUN , Chunguang ZONG , Yu HU , Quanwei SONG , Hejun ZHOU , Weifeng YU , Jinguo CAO , Bing FU
IPC分类号： G01N23/10 , G01N23/04 , G01N23/083
摘要： The present disclosure provides a radiation inspection apparatus and a radiation inspection method. The radiation inspection apparatus includes: a radiation inspection device comprising a ray source and a detector that cooperates with the ray source to perform scanning inspection on an object to be inspected, the radiation inspection device having an inspection channel for the object to be inspected to pass through when scanning inspection is performed thereon; and traveling wheels provided at the bottom of the radiation inspection device to enable the radiation inspection apparatus to travel in an extension direction of the inspection channel, and the traveling wheels are configured to rotate 90° to enable the radiation inspection apparatus to travel in a direction perpendicular to the extension direction of the inspection channel.

9. 发明申请

US20210048376A1 SAMPLING PROBE, AUTOMATIC SAMPLING DEVICE, AND CONTAINER DETECTION SYSTEM 有权
公开(公告)号：US20210048376A1
公开(公告)日：2021-02-18
申请号：US16989123
申请日：2020-08-10
申请人： NUCTECH COMPANY LIMITED , Tsinghua University
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Jianmin LI , Shangmin SUN , Yaohong LIU , Weiping ZHU , Qiufeng MA , Ge LI , Biao CAO , Zheng LIANG , Ying LI , Yu HU
IPC分类号： G01N1/24 , G01N27/62
摘要： A sampling probe, an automatic sampling device, and a container detection system are provided. The sampling probe includes: a mounting base; a housing mounted on the mounting base, a first accommodation chamber having an opening being defined in the housing, and an exhaust hole in communication with the first accommodation chamber and outside of the housing being formed in the housing; a coupling portion formed on an outer edge of the opening of the first accommodation chamber and formed to be hermetically coupled with an air outlet of a container; and a suction device mounted on the housing and configured to suck gas in the container into the first accommodation chamber through the air outlet. The sampling probe may collect the odor of toxic and harmful gases/hazardous chemicals inside the container at the air outlet of the container, without destroying the overall structure of the container.

10. 发明申请

US20190204244A1 VEHICLE-MOUNTED TYPE BACK SCATTERING INSPECTION SYSTEM 审中-公开
公开(公告)号：US20190204244A1
公开(公告)日：2019-07-04
申请号：US16234630
申请日：2018-12-28
申请人： NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： 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分类号： G01N23/203 , G01V5/00
CPC分类号： G01N23/203 , G01V5/0025
摘要： 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.

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