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41. 发明申请

US20140185873A1 THREE-DIMENSIONAL DATA PROCESSING AND RECOGNIZING METHOD 有权
标题翻译：三维数据处理和识别方法
公开(公告)号：US20140185873A1
公开(公告)日：2014-07-03
申请号：US14136402
申请日：2013-12-20
申请人： Tsinghua University , Nuctech Company Limited
发明人： Mingliang Li , Zhiqiang Chen , Yuanjing Li , Li Zhang
IPC分类号： G06K9/00
CPC分类号： G06K9/00201 , G06K2209/09
摘要： A three-dimensional data processing and recognizing method including scanning and re-constructing an object to be detected so as to obtain three-dimensional data for recognition of the object to be detected; and extracting data matching to features from the three-dimensional data, so that the extracted data constitutes an interested target in order to display and recognize the object to be detected. A quick method to recognize an object to be detected, such as the shapes of cuboid, cylinder, and cutting tool, and so on.
摘要翻译：一种三维数据处理和识别方法，包括扫描和重新构造待检测对象以获得用于识别待检测对象的三维数据; 并且从三维数据提取与特征匹配的数据，从而提取的数据构成感兴趣的目标，以便显示和识别待检测的对象。识别待检测物体的快速方法，如长方体，圆柱体和切割工具的形状等。

42. 发明申请

US20140185776A1 APPARATUSES AND METHODS FOR GENERATING DISTRIBUTED X-RAYS 有权
标题翻译：用于产生分布式X射线的装置和方法
公开(公告)号：US20140185776A1
公开(公告)日：2014-07-03
申请号：US14136362
申请日：2013-12-20
申请人： NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Yuanjing Li , Yaohong Liu , Jinsheng Liu , Huaping Tang , Chuanxiang Tang , Huaibi Chen , Xinshui Yan
IPC分类号： H01J35/14
CPC分类号： H01J35/14 , H01J35/16 , H01J35/30 , H01J2235/16
摘要： An apparatus and method to generate distributed x-rays. A hot cathode of an electron gun is used in vacuum to generate electron beams having certain initial movement energy and speed. Periodic scanning is performed with the initial low-energy electron beams, which are thus caused to be reciprocally deflected. A current-limiting device is provided in the travel path of the electron beams along the direction of the reciprocal deflection. Through holes arranged in an array on the current-limiting device, only part of the electron beams targeting specific positions can pass to form sequential electron beam currents distributed in an array. These electron beam currents are accelerated by a high-voltage electric field to obtain high energy, bombard an anode target, and thus sequentially generate corresponding focus spots and x-rays distributed in an array at the anode target.
摘要翻译：一种生成分布式X射线的装置和方法。真空中使用电子枪的热阴极来产生具有一定的初始移动能量和速度的电子束。用初始低能电子束进行周期性扫描，从而使其相互偏转。电流限制装置沿着往复偏转的方向设置在电子束的行进路径中。通过排列在限流装置上的阵列中的通孔，只有部分针对特定位置的电子束可以通过以形成分布在阵列中的顺序电子束电流。这些电子束电流通过高电压电场加速以获得高能量，轰击阳极靶，从而顺序地产生在阳极靶上分布在阵列中的相应聚焦点和x射线。

43. 发明授权

US11614413B2 Back scattering inspection system and back scattering inspection method 有权
公开(公告)号：US11614413B2
公开(公告)日：2023-03-28
申请号：US17255968
申请日：2020-01-03
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED , NUCTECH (BEIJING) COMPANY LIMITED
发明人： Jianmin Li , Li Zhang , Yuanjing Li , Zhiqiang Chen , Hao Yu , Shangmin Sun , Bicheng Liu , Weizhen Wang , Dongyu Wang , Yuan Ma , Yu Hu , Chunguang Zong
IPC分类号： G01N23/20008 , G01N23/203
摘要： The present disclosure provides a back scattering inspection system and a back scattering inspection method. The back scattering inspection system includes a frame and a back scattering inspection device. The rack includes a track arranged vertically or obliquely relative to the ground, and a space enclosed by the track forms an inspection channel; and the back scattering inspection device includes a back scattering ray emitting device and a back scattering detector, and the back scattering inspection device is movably disposed on the track for inspecting an inspected object passing through the inspection channel. The back scattering inspection system can perform back scattering inspection on a plurality of surfaces of the inspected object.

44. 发明授权

US11215626B2 Gate system for sample detection and method of sample inspection 有权
公开(公告)号：US11215626B2
公开(公告)日：2022-01-04
申请号：US16406272
申请日：2019-05-08
申请人： TSINGHUA UNIVERSITY , Nuctech Company Limited
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Ziran Zhao , Yinong Liu , Yaohong Liu , Qiufeng Ma , Lili Yan , Weiping Zhu , Biao Cao
IPC分类号： G01N35/04 , G01N25/54 , G01N35/10 , G01N35/00 , G01N1/02
摘要： The present disclosure provides a gate system for sample detection and a method of sample inspection, which relate to the field of detection and analysis technology. The gate system comprises: an accommodating apparatus configured to accommodate an inserted ticket to be detected; a wipe sampling apparatus including a wipe sampling belt which is configured to drive the ticket to be detected to move within the accommodating apparatus and to conduct a wipe sampling to the ticket; an inspiratory sampling apparatus configured to collect samples dropped from the wipe sampling apparatus; and a detection apparatus configured to detect the samples and output detection results. The gate system for sample detection and the method of sample inspection provided by the present disclosure have a wide range of applications and can perform rapid sampling and detection to those substances that are difficult to be volatilized.

45. 发明授权

US11193860B2 Gas purifying device and ion migration spectrometer 有权
公开(公告)号：US11193860B2
公开(公告)日：2021-12-07
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 , G01N1/22 , G01N1/44 , G01N27/622
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.

46. 发明授权

US11022581B2 Multiple functions ion mobility spectrometer device 有权
公开(公告)号：US11022581B2
公开(公告)日：2021-06-01
申请号：US16727612
申请日：2019-12-26
申请人： NUCTECH COMPANY LIMITED , Tsinghua University
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Jianmin Li , Yaohong Liu , Weiping Zhu , Qiufeng Ma , Biao Cao , Ge Li , Wei Wang , Lili Yan , Guangqin Li
IPC分类号： G01N27/00 , G01N27/622 , H01J49/04
摘要： Embodiments of the present disclosure provide an ion mobility spectrometer device. The ion mobility spectrometer device includes: an ion mobility tube, a sampling device, and a sampling and circulating gas path. The sampling device includes a solid sample desorption device and a gas sampling device. The solid sample desorption device is configured to process the solid sample into a first mixed gas containing the solid sample, and the gas sampling device is configured to process the gas sample into a second mixed gas containing the gas sample. The sampling and circulating gas path is configured to transfer the first mixed gas and/or the second mixed gas into the ion mobility tube for detection.

47. 发明申请

US20210118656A1 REAL-TIME CALIBRATION DEVICE, REAL-TIME CALIBRATION METHOD AND DETECTION APPARATUS 有权
公开(公告)号：US20210118656A1
公开(公告)日：2021-04-22
申请号：US16947998
申请日：2020-08-27
申请人： Nuctech Company Limited , Tsinghua University
发明人： Qingjun Zhang , Zhiqiang Chen , Yuanjing Li , Jianmin Li , Yinong Liu , Yaohong Liu , Guangqin Li , Weiping Zhu , Ge Li , Qiufeng Ma , Biao Cao
IPC分类号： H01J49/00 , H01J49/04 , G01N27/62
摘要： Embodiments of the present disclosure provide a real-time calibration device, a real-time calibration method and a detection apparatus. The real-time calibration device is in fluid communication with a sample injection pipeline of the apparatus to be calibrated. The real-time calibration device is configured to release a trace amount of calibration agent molecules during a sample injection of the apparatus to be calibrated, so that the trace amount of calibration agent molecules and a sample entering the apparatus to be calibrated are mixed and together enter the apparatus to be calibrated, and information of the sample and the calibration agent is detected by the apparatus to be calibrated, thereby performing a calibration.

48. 发明授权

US10948427B2 Scanned image correction apparatus, method and mobile scanning device 有权
公开(公告)号：US10948427B2
公开(公告)日：2021-03-16
申请号：US16231373
申请日：2018-12-21
申请人： Tsinghua University , Nuctech Company Limited
发明人： Ke Li , Jianmin Li , Weifeng Yu , Yulan Li , Xuejing Yang , Yuanjing Li , Chunguang Zong , Zhiqiang Chen , Li Zhang
IPC分类号： G01N23/04
摘要： The present disclosure provides a scanned image correction apparatus, method and a mobile scanning device. The apparatus includes an image collector, an arm swing detector, and an image processor. The image collector is configured to collect a scanned image of an object under inspection during a scanning process of scanning the object under inspection by the mobile scanning device, and determine an image parameter of the scanned image. The arm swing detector is disposed at a monitor point on a detector arm of the mobile scanning device, and configured to detect a displacement offset of the detector arm in a specified direction and build an arm swing model of the detector arm. The image processor is configured to determine a change relationship between the image parameter of the scanned image and the displacement offset of the detector arm, and correct the scanned image based on the change relationship.

49. 发明授权

US10795050B2 Vehicle detection system 有权
公开(公告)号：US10795050B2
公开(公告)日：2020-10-06
申请号：US16233387
申请日：2018-12-27
申请人： TSINGHUA UNIVERSITY , Nuctech Company Limited
发明人： Ying Li , Jianmin Li , Jinguo Cao , Yuan Ma , Yulan Li , Yuan He , Yuanjing Li , Hui Meng , Zhiqiang Chen , Yiwei Guo , Li Zhang
IPC分类号： G01V5/00 , G06K9/00
摘要： A vehicle detection system includes a transverse detector arm, two vertical detector arms, a radiation source, a plurality of transverse detectors, and a plurality of vertical detectors. The transverse detector arm may be disposed on the ground. Two vertical detector arms are disposed at both ends of the transverse detector arm. The radiation source is located above the transverse detector arm. A plurality of transverse detectors are disposed within the transverse detector arm and are laid along a length direction of the transverse detector arm for receiving ray emitted by the radiation source. The plurality of vertical detectors are symmetrically disposed on the two vertical detector arms, and each of the vertical detectors is disposed towards a center point of the radiation source for receiving ray emitted by the radiation source.

50. 发明授权

US10732306B2 Slow neutron detection device 有权
公开(公告)号：US10732306B2
公开(公告)日：2020-08-04
申请号：US15700380
申请日：2017-09-11
申请人： Nuctech Company Limited , Tsinghua University
发明人： Yigang Yang , Yuanjing Li , Zhujun Fang , Yulan Li
IPC分类号： G01T3/00 , G01T1/167 , H01J47/12
摘要： A slow neutron detection device is disclosed, comprising: a first slow neutron converter and a second slow neutron converter, and a readout electrode wire set and cathode wire sets arranged between the first slow neutron converter and the second slow neutron converter. By arranging a readout circuit between the two slow neutron converters, an electron drift distance is reduced by half without changing a dimension of the detection device, and an average over-threshold probability of a signal is increased.

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