公开(公告)号：US20190204188A1

公开(公告)日：2019-07-04

申请号：US16232672

申请日：2018-12-26

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

Inventor： Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Yinong LIU ,  Yaohong LIU ,  Nan BAI ,  Ge LI ,  Qiufeng MA ,  Biao CAO ,  Weiping ZHU

IPC: G01N1/22 ,  B01D53/10

CPC classification number: G01N1/2214 ,  B01D53/10 ,  B01D2259/40098 ,  G01N1/2205

Abstract: A sampling adsorber, a heat desorption chamber device, a sampling apparatus and an analyzer apparatus. The sampling adsorber includes an outer barrel, which includes an outer barrel first end and an outer barrel second end, and a core located in the outer barrel, the core having a core first end and a core second end, and the outer barrel first end and the core first end are located at a same side of the sampling adsorber. The core includes an adsorbent portion configured to adsorb a sample and a core body portion, the adsorbent portion connected to the core body portion. Sizes of the outer barrel and the core are formed such that a gap is provided between them to allow external gas to enter the gap through the adsorbent portion and to subsequently be discharged from a downstream portion of the gap.

公开(公告)号：US20190198282A1

公开(公告)日：2019-06-27

申请号：US16231667

申请日：2018-12-24

Applicant: Nuctech Company Limited

Inventor： Yaohong LIU ,  Liang ZHANG ,  Xiaotong ZHANG

IPC: H01J33/02 ,  H05H5/03

CPC classification number: H01J33/02 ,  H01J2229/8626 ,  H05H5/03

Abstract: The present disclosure provides a drawer-type carrying device for an accelerator and an cabin structure for the accelerator, the drawer-type carrying device for the accelerator includes a frame mechanism and a drawing mechanism. The frame mechanism is used for installing the accelerator; the drawing mechanism is connected with the frame mechanism and the frame mechanism is movable relative to the drawing mechanism. The cabin structure for the accelerator includes a cabin, a shielding mechanism and a drawer-type carrying device for the accelerator. The cabin has a working area and a maintenance area. The shielding mechanism is disposed in the working area and has a side opening door facing towards the maintenance area. The frame mechanism is capable of drawn from the shielding mechanism into the maintenance area when the side opening door is opened.

公开(公告)号：US20190195751A1

公开(公告)日：2019-06-27

申请号：US16232062

申请日：2018-12-26

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Yinong LIU ,  Yaohong LIU ,  Ge LI ,  Biao CAO ,  Jingli XIE ,  Xiaolin ZHAO ,  Qiufeng MA

IPC: G01N1/24 ,  G01N1/22 ,  G01N30/30 ,  G01N1/40

CPC classification number: G01N1/24 ,  G01N1/2205 ,  G01N1/2211 ,  G01N1/405 ,  G01N30/30 ,  G01N2001/028 ,  G01N2001/2282 ,  G01N2001/2288 ,  G01N2030/146

Abstract: The present disclosure relates to the technical field of safety detection, and in particular to a sample collecting and introducing device and a detection system. The sample collecting and introducing device provided by the present disclosure includes a sampling device for collecting a sample, and a semipermeable membrane device for extracting the sample collected by the sampling device and conveying the extracted sample to detection equipment, wherein the sampling device is provided with an air guide cavity, the air guide cavity is configured to guide airflow carrying the sample to flow to the semipermeable membrane device, the semipermeable membrane device is provided with a semipermeable membrane which is arranged outside the sampling device. In the present disclosure, the size of the semipermeable membrane is no longer limited by the sampling device, and therefore the difficulty of increasing the area of the semipermeable membrane is reduced.

公开(公告)号：US20190156139A1

公开(公告)日：2019-05-23

申请号：US16255738

申请日：2019-01-23

Applicant: NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Ziran ZHAO ,  Yaohong LIU ,  Duokun ZHANG ,  Jianping GU ,  Qiang LI ,  Jian ZHANG

IPC: G06K9/32 ,  G01N23/046 ,  G01V5/00

CPC classification number: G06K9/3241 ,  G01N23/046 ,  G01V5/0016 ,  G01V5/005

Abstract: An inspection method and system for inspecting whether there is any liquor in goods is provided. The method includes: acquiring a radiation image of goods being inspected; processing on the radiation image to obtain an ROI; inspecting on the ROI using a liquor goods inspection model to determine if the ROI of the radiation image contains liquor goods. The above solution performs liquor inspection on scanned images of goods, especially containers, so as to intelligently assist the image inspectors.

公开(公告)号：US20180328866A1

公开(公告)日：2018-11-15

申请号：US16029896

申请日：2018-07-09

Applicant: Nuctech Company Limited

Inventor： Kejun KANG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Li ZHANG ,  Ziran ZHAO ,  Yaohong LIU ,  Jianping GU ,  Liang LI ,  Yuxiang XING

IPC: G01N23/046 ,  G01V5/00

CPC classification number: G01N23/046 ,  G01V5/005

Abstract: The present disclosure provides a low-angle self-swinging type computed tomography (CT) apparatus, which is provided with an X-ray accelerator and a plurality of rows of detectors and is configured to include a slip ring, such that the slip ring with the accelerator and the detectors thereon is capable of performing a single-pendulum reciprocating movement while an objected to be inspected passes through the slip ring, a three dimension CT image of the object is displayed, thereby achieving accurate inspection for large-scale objects, such as van containers.

公开(公告)号：US20180158785A1

公开(公告)日：2018-06-07

申请号：US15718919

申请日：2017-09-28

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

Inventor： Wenjian ZHANG ,  Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Yinong LIU ,  Yaohong LIU ,  Xiang ZOU ,  Huishao HE ,  Weishu LI ,  Nan BAI

IPC: H01L23/00 ,  H01L31/02 ,  H01L31/024 ,  H01L31/18 ,  H01L23/15 ,  H01L23/498

Abstract: The present disclosure proposes a packaging structure for a metallic bonding based opto-electronic device and a manufacturing method thereof. According to the embodiments, the packaging structure for an opto-electronic device may comprise an opto-electronic chip and a packaging base. The opto-electronic chip comprises: a substrate having a first substrate surface and a second substrate surface opposite to each other; an opto-electronic device formed on the substrate; and electrodes for the opto-electronic device which are formed on the first substrate surface. The packaging base has a first base surface and a second base surface opposite to each other, and comprises conductive channels extending from the first base surface to the second base surface. The opto-electronic chip is stacked on the packaging base in such a manner that the first substrate surface faces the packaging base, and the electrodes formed on the first substrate surface of the opto-electronic chip are bonded with corresponding conductive channels in the packaging base.

公开(公告)号：US20170138914A1

公开(公告)日：2017-05-18

申请号：US15276595

申请日：2016-09-26

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Weiping ZHU ,  Yaohong LIU ,  Qiufeng MA ,  Xiang ZOU ,  Huishao HE ,  Jianping CHANG ,  Song LIANG

IPC: G01N30/72 ,  G01N23/06 ,  G01B15/00

Abstract: A darkroom type security inspection apparatus and a method of performing an inspection using the darkroom type security inspection apparatus. An apparatus includes a housing constituting a closed darkroom, and assemblies disposed inside the housing. The assemblies disposed inside the housing include: a sample collecting unit configured to collect a sample, a conveyor unit, and a X-ray detection unit to detect a position of the objected to be inspected, wherein the X-ray detection unit is configured to determine the position of the objected to be inspected within the sampling assembly so that the object to be inspected together with the conveyor unit is conveyed to an expected position; and a sample processing assembly, wherein the assemblies disposed inside the housing are communicated by fittings or connectors.

公开(公告)号：US20170024862A1

公开(公告)日：2017-01-26

申请号：US15217613

申请日：2016-07-22

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Kejun KANG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Li ZHANG ,  Ziran ZHAO ,  Yaohong LIU ,  Jianping GU ,  Zhiming WANG

IPC: G06T5/00 ,  G06T7/40 ,  G06T7/00

CPC classification number: G06T5/003 ,  G06T7/00 ,  G06T2207/10116 ,  G06T2207/20021 ,  G06T2207/20076 ,  G06T2207/30168

Abstract: The present disclosure relates to a method and device for estimating a point spread function. In one implementation, a method includes capturing, by a scanning device, an image by scanning a plurality of rectangle blocks which are same sized and closely arranged, wherein the plurality of rectangle blocks are made of different materials and/or have different mass thicknesses, and an incident direction of rays is perpendicular to a scanning direction and a surface of the plurality of rectangle blocks arranged closely during scanning; obtaining line spread functions for two directions along a length side and a width side of each of the rectangle blocks based on the scanned image, and obtaining standard deviation parameters of the line spread functions; and combining the standard deviation parameters for the two directions to obtain a two dimensional Point Spread Function (PSF) parameter so as to estimate the point spread function.

Abstract translation: 本公开涉及一种用于估计点扩散函数的方法和装置。 在一个实现中，一种方法包括通过扫描与尺寸相同并且紧密排列的多个矩形块来扫描图像，其中多个矩形块由不同的材料制成和/或具有不同的质量厚度， 并且光线的入射方向垂直于扫描方向，并且所述多个矩形块的表面在扫描期间被紧密排列; 基于扫描图像，沿矩形块的长度侧和宽度侧的两个方向获得线扩展函数，并获得线扩展函数的标准偏差参数; 并组合两个方向的标准偏差参数以获得二维点扩展函数（PSF）参数，以估计点扩散函数。

公开(公告)号：US20170023697A1

公开(公告)日：2017-01-26

申请号：US15217787

申请日：2016-07-22

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Yuanjing LI ,  Li ZHANG ,  Ziran ZHAO ,  Yaohong LIU ,  Juan ZHENG ,  Jianping GU ,  Chunguang ZONG

IPC: G01V5/00

CPC classification number: G01V5/0041 ,  G01N23/04 ,  G01N23/046 ,  G01N23/06 ,  G01N23/083 ,  G01N23/087 ,  G01N23/10 ,  G01V5/0016 ,  G01V5/005 ,  G01V5/12

Abstract: Disclosed is a method and device for estimating weight of an object to be inspected in an inspection system. An effective atomic number and a high-energy gray value of the dual-energy corresponding to each pixel of the object to be inspected are obtained by a dual-energy radiation scanning. A mass-thickness value for a corresponding pixel is obtained from a pre-created mass-thickness attenuation curve by utilizing the effective atomic numbers and the high-energy gray value of the dual-energy for respective pixels. Weight information for at least a part of the object to be inspected is calculated by multiplying the mass-thickness value by the area of the pixel. Such a method may accurately calculate the weight of the object to be inspected and save the cost for a conventional weighing hardware.

Abstract translation: 公开了一种用于在检查系统中估计被检查物体的重量的方法和装置。 通过双能量辐射扫描获得与待检测对象的每个像素相对应的双能量的有效原子序数和高能灰度值。 通过利用有效原子序数和相应像素的双能量的高能量灰度值，从预先创建的质量厚度衰减曲线获得相应像素的质量厚度值。 通过将质量厚度值乘以像素的面积来计算待检查对象的至少一部分的重量信息。 这种方法可以精确地计算待检查物体的重量并节省常规称重硬件的成本。

公开(公告)号：US20170017667A1

公开(公告)日：2017-01-19

申请号：US15282134

申请日：2016-09-30

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Zhiqiang Chen ,  Li ZHANG ,  Ziran ZHAO ,  Yaohong LIU ,  Jianping GU ,  Zheng HU ,  Qiang LI

IPC: G06F17/30 ,  G06T7/00 ,  G01N23/04

CPC classification number: G06F17/30256 ,  G01N23/04 ,  G01N2223/401 ,  G01N2223/631 ,  G01V5/0016 ,  G06F17/30274 ,  G06K9/42 ,  G06K9/6215 ,  G06K2209/09 ,  G06K2209/23 ,  G06T7/001 ,  G06T7/337 ,  G06T2207/10116 ,  G06T2207/30268

Abstract: A vehicle inspection method and system are disclosed. In one aspect, the method includes acquiring a transmission image of an inspected vehicle. The method further includes acquiring a transmission image template of a vehicle model corresponding to the model of the inspected vehicle from a database. The method further includes performing registration on the transmission image of the inspected vehicle and the transmission image template. The method further includes determining a difference between a transmission image after the registration and a transmission image template after the registration, to obtain a difference area of the transmission image of the vehicle relative to the transmission image template. The method further includes processing the difference area to determine whether the vehicle carries a suspicious object or not. In some embodiments, this solution can avoid the problems of a detection loophole and a poor effect of manually determining an image in a conventional manner, and is important to assist the security inspection for small vehicles.

Abstract translation: 公开了车辆检验方法和系统。 一方面，该方法包括获取被检查车辆的发送图像。 该方法还包括从数据库中获取与被检查车辆的模型相对应的车辆模型的发送图像模板。 该方法还包括对被检查车辆的发送图像和发送图像模板进行登记。 该方法还包括确定注册之后的发送图像与注册后的发送图像模板之间的差异，以获得相对于发送图像模板的车辆的发送图像的差分区域。 该方法还包括处理差异区域以确定车辆是否携带可疑物体。 在一些实施例中，该解决方案可以避免检测漏洞的问题和以常规方式手动确定图像的差的影响，并且对于帮助小型车辆的安全检查是重要的。