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1. 发明申请

US20210025849A1 TRACE DETECTION DEVICE 有权
公开(公告)号：US20210025849A1
公开(公告)日：2021-01-28
申请号：US16934520
申请日：2020-07-21
申请人： NUCTECH COMPANY LIMTED , Tsinghua University
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Jianmin LI , Yinong LIU , Yaohong LIU , Yanqin ZHAO , Lili YAN , Biao CAO , Qiufeng MA , Ge LI
IPC分类号： G01N27/62
摘要： The present disclosure provides a trace detection device. The trace detection device includes: a box body comprising a main body frame and a top plate, the top plate and the main body frame forming a fully enclosed cavity; an ion migration tube assembly in the cavity and on a first side of the cavity; and a preamplifier and high voltage circuit board in the cavity and on a second side of the cavity, the second side being opposite to the first side.

2. 发明申请

US20140185772A1 HUMAN BODY INSPECTION SYSTEM 审中-公开
标题翻译：人体检查系统
公开(公告)号：US20140185772A1
公开(公告)日：2014-07-03
申请号：US14135989
申请日：2013-12-20
申请人： Nuctech Company Limted
发明人： Zhiqiang CHEN , Yuanjing LI , Ziran ZHAO , Wanlong WU , Le TANG , Yinong LIU , Yingkang JIN , Wenguo LIU , Shuo CAO , Zhimin ZHENG , Guangwei DING , Wentao YU , Yi ZHOU
IPC分类号： G01V5/00
CPC分类号： G01V5/0025 , G01T1/167
摘要： The invention discloses a human body inspection system comprising: an X-rays source for emitting X-rays to a human body to be inspected; a modulation and collimation device for modulating and collimating the X-rays from the X-rays source; a detector that receives X-rays scattered from the human body to be inspected; a guiding rail forming an enclosed detection region, wherein the human body to be inspected is in the detection region, and the X-rays source, the modulation and collimation device and the detector are positioned in a same side relative to the human body, and the X-rays source, the modulation and collimation device and the detector together move along the guiding rail in whole so that the X-rays can scan all over the human body.
摘要翻译：本发明公开了一种人体检查系统，包括：X射线源，用于向人体发射X射线进行检查; 用于调制和准直来自X射线源的X射线的调制和准直装置; 接收从人体散射的待检查的X射线的检测器; 形成封闭检测区域的导轨，其中待检查的人体在检测区域中，并且X射线源，调制和准直装置以及检测器相对于人体位于同一侧，以及 X射线源，调制和准直装置和检测器一起沿着导轨移动，使得X射线可以扫描整个人体。

3. 发明申请

US20190193017A1 Decomposition Method and Apparatus Based on Basis Material Combination 审中-公开
公开(公告)号：US20190193017A1
公开(公告)日：2019-06-27
申请号：US16232050
申请日：2018-12-26
申请人： NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Lili YAN , Ge LI , Qiufeng MA , Nan BAI
IPC分类号： B01D53/04 , B01D53/02 , G01N27/62 , G01N30/26
CPC分类号： B01D53/0446 , B01D53/025 , B01D53/0438 , B01D2257/80 , B01D2259/40003 , B01D2259/40086 , B01D2259/40096 , G01N27/622 , G01N30/26 , G01N2030/025
摘要： The present disclosure relates to a gas purification apparatus and a trace substance detection device. The gas purification apparatus includes a first purification component, a second purification component and a switching component, wherein the switching component can be switched between a first state and a second state, the first purification component and a component to be purified form a gas purification loop in the first state, and the second purification component can provide a regeneration gas for the first purification component in the second state, so that water vapor and impurities in the first purification component are discharged to outside. In the gas purification apparatus, the filtered air is used as the regeneration gas to prevent secondary pollution in a recycling process of the purificant; furthermore, by means of the state switching function of the switching component, the mutual interference between the two working states of purification and regeneration can be prevented, and all the above advantages can improve the reliability of the recycling of the purificant, thereby optimizing the performance and the service life of the gas purification apparatus.

4. 发明申请

US20210215582A1 GAS PURIFYING DEVICE AND ION MIGRATION SPECTROMETER 有权
公开(公告)号：US20210215582A1
公开(公告)日：2021-07-15
申请号：US16314063
申请日：2018-12-10
申请人： Nuctech Company Limited , Tsinghua University
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Lili YAN , Ge LI , Qiufeng MA
IPC分类号： G01N1/34 , G01N1/44 , G01N27/622 , G01N1/22
摘要： Embodiments of the present disclosure provide a gas purifying device and an ion migration spectrometer. The gas purifying device includes a first purificant vessel, a second purificant vessel and a valve communicated between the first purificant vessel and the second purificant vessel. The valve is configured to allow a gas flows from the second purificant vessel to the first purificant vessel in a first state and to permit the gas to flow from the first purificant vessel to the second purificant vessel in a second state.

5. 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.

6. 发明申请

US20140185773A1 HUMAN BODY SECURITY INSPECTION SYSTEM 审中-公开
标题翻译：人体健康检查系统
公开(公告)号：US20140185773A1
公开(公告)日：2014-07-03
申请号：US14136514
申请日：2013-12-20
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Zhiqiang Chen , Yuanjing LI , Ziran ZHAO , Wanlong WU , Le TANG , Yinong LIU , Yingkang JIN , Wenguo LIU , Shuo CAO , Zhimin ZHENG , Guangwei DING , Ming RUAN , Xiuwei CHEN
IPC分类号： G01N23/203
CPC分类号： G01N23/203 , G01V5/0025
摘要： A human body security inspection system including a plurality of ray emitting-detecting modules, which are configured to emit X-rays to the object to be inspected and to receive X-rays scattered from the object to be inspected, wherein the ray emitting-detecting modules form an enclosed region with respect to the object to be inspected and security inspection is implemented on the object in the enclosed region.
摘要翻译：一种人体安全检查系统，包括多个射线发射检测模块，其被配置为向被检查物体发射X射线并且接收从被检查物体散射的X射线，其中，所述射线发射检测模块相对于待检查对象形成封闭区域，并且在封闭区域中的对象上实施安全检查。

7. 发明申请

US20200150086A1 GAS PATH FLOW MONITORING APPARATUS AND METHOD FOR ION MOBILITY SPECTROMETER 审中-公开
公开(公告)号：US20200150086A1
公开(公告)日：2020-05-14
申请号：US16627434
申请日：2019-01-25
申请人： TSINGHUA UNIVERSITY , Nuctech Company Limited
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Honghui XIN , Biao CAO , Nan BAI , Wei WANG , Qiufeng MA
IPC分类号： G01N27/62 , G01N33/00
摘要： A gas path flow monitoring apparatus for an ion mobility spectrometer includes: an ion migration tube, a sensor group, and monitoring device. The ion migration tube has a drift gas inlet, a carrier gas inlet for a sample gas, and an exhaust outlet. The sensor group comprises a drift gas intake quantity sensor connected to the drift gas inlet, a carrier gas intake quantity sensor connected to the carrier gas inlet, and an exhaust quantity sensor connected to the exhaust outlet. The monitoring device is connected to the sensor group to monitor a drift gas intake quantity sensed by the drift gas intake quantity sensor, a carrier gas intake quantity sensed by the carrier gas intake quantity sensor, and an exhaust quantity sensed by the exhaust quantity sensor.

8. 发明申请

US20190204270A1 GAS CHROMATOGRAPHY-ION MOBILITY SPECTROMETRY DETECTOR AND GAS CHROMATOGRAPH-ION MOBILITY SPECTROMETER 审中-公开
公开(公告)号：US20190204270A1
公开(公告)日：2019-07-04
申请号：US16235315
申请日：2018-12-28
申请人： Nuctech Company Limited , TSINGHUA UNIVERSITY
发明人： Qingjun ZHANG , Weiping ZHU , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Qiufeng MA , Ge LI , Biao CAO , Nan BAI
IPC分类号： G01N27/62 , G01N30/20 , G01N30/60
CPC分类号： G01N27/622 , G01N30/20 , G01N30/6026 , G01N2030/025
摘要： A gas chromatography-ion mobility spectrometry detector and a hyphenated apparatus, the gas chromatography-ion mobility spectrometry detector comprises a gas chromatography mechanism and an ion mobility spectrometry mechanism. The gas chromatography mechanism comprises a chromatographic column and a sample injection port. The ion mobility spectrometry mechanism comprises a mobility tube and a connecting body, while a metal connection plate of the connecting body comprises a chromatographic metal plate, an ion mobility metal plate and a semipermeable membrane; on the ion mobility metal plate there are provided an ion mobility sample and carrier gas inlet, an ion mobility sample chamber and a sample injection port; the chromatography sample chamber and the ion mobility sample chamber are separated by semipermeable membrane.

9. 发明申请

US20160170074A1 ALIGNMENT SYSTEM AND METHOD FOR CONTAINER OR VEHICLE INSPECTION SYSTEM 有权
标题翻译：集装箱或车辆检查系统的对准系统和方法
公开(公告)号：US20160170074A1
公开(公告)日：2016-06-16
申请号：US14965978
申请日：2015-12-11
申请人： Nuctech Company Limited , Tsinghua University
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 , 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.
摘要翻译：本公开公开了一种用于集装箱或车辆检查系统的对准系统和对准方法以及检查系统。检查系统包括一个安装在检测器臂上的射线源，准直仪，检测器臂和检测器模块，射线源，准直器和检测器模块被布置成形成检查通道，从射线射出的射线束源通过准直仪并照射到检查对象上，并且由检测器模块收集衰减的射线束，以便完成检查。对准系统包括测量模块，其布置成接收从准直仪发射的射线束并测量射线束，以便确定射线源和准直器的位置和取向。利用对准方法，可以更准确地测量射线源的中心点，检测器尖端的中心线与准直仪的中心线之间的对准。

10. 发明申请

US20140185763A1 INSPECTION SYSTEM AND INSPECTION METHOD 审中-公开
标题翻译：检查系统和检查方法
公开(公告)号：US20140185763A1
公开(公告)日：2014-07-03
申请号：US14136494
申请日：2013-12-20
申请人： Tsinghua University , Nuctech Company Limited
发明人： Zhiqiang CHEN , Yuanjing LI , Ziran ZHAO , Wanlong WU , Le TANG , Yinong LIU , Yingkang JIN , Guangwei DING , Shuo CAO , Zhimin ZHENG , Wenguo LIU , Wentao YU , Yi ZHOU
IPC分类号： G01V5/00
CPC分类号： G01V5/005 , G01T1/167 , G01V5/0025
摘要： An inspection system included a ray source to emit a ray, a detector to receive the ray, a detection region for placing an object under inspection, and a moving device to move the ray source and the detector around the detection region. Conventional scanning blind zones such as both sides of a human body, both sides of arms and both sides of legs can be completely eliminated. In addition, it is not necessary for a human body under inspection to carry out an action such as turning around to change his or her posture. Therefore, ineffective time can be minimized in the entire detection and a passing rate of persons under inspection can be improved. Furthermore, an inspected person's mental feeling of being controlled due to change of posture can be greatly improved, and his or her mental discomfort and conflicted moods can be reduced.
摘要翻译：检查系统包括用于发射射线的射线源，用于接收射线的检测器，用于放置被检查物体的检测区域，以及使检测区域周围的射线源和检测器移动的移动装置。可以完全消除诸如人体两侧，臂的两侧和腿的两侧的常规扫描盲区。此外，被检查的人体不需要进行转动等动作来改变姿势。因此，在整个检测中无效时间可以最小化，可以提高检查人员的合格率。此外，被检查者由于姿势变化而受到控制的心理感觉可以大大提高，并且可以减轻他或她的精神不适和冲动的情绪。

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