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公开(公告)号：US09551808B2
公开(公告)日：2017-01-24
申请号：US14140105
申请日：2013-12-24
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Jinyu Zhang , Hu Tang , Zhanjun Duan , Li Zhang , Ziran Zhao
CPC classification number: G01V5/005 , G01N23/046 , G01N2223/419 , G01T1/2985
Abstract: A CT apparatus without a gantry. The CT apparatus includes a scanning passage; a stationary X-ray source arranged around the scanning passage and including a plurality of ray emission focal spots; and a plurality of stationary detector modules arranged around the scanning passage and disposed opposite the X-ray source. At least some of the plurality of detector modules may be arranged substantially in an L shape, a semicircular shape, a U shape, an arc shape, a parabolic shape, or a curve shape when viewed in a plane intersecting the scanning passage. The invention ensures that the stationary gantry type CT system has a small size, and a high data identification accuracy.
Abstract translation: 没有龙门架的CT设备。 CT装置包括扫描通道; 固定的X射线源，设置在扫描通道周围并且包括多个射线发射焦点; 以及多个固定检测器模块，其布置在扫描通道周围并且设置成与X射线源相对。 当在与扫描通道相交的平面中观察时，多个检测器模块中的至少一些可以基本上布置成L形，半圆形，U形，弧形，抛物线形或曲线形状。 本发明确保了固定式龙门式CT系统体积小，数据识别精度高。
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2.发明授权Photoelectric switch for detection of an object and method for operating the same 有权用于检测物体的光电开关及其操作方法公开(公告)号：US09507051B2
公开(公告)日：2016-11-29
申请号：US14577446
申请日：2014-12-19
Applicant: NUCTECH COMPANY LIMITED
Inventor： Jinyu Zhang , Lei Liao , Hui Ding , Hu Tang , Li Zhang
CPC classification number: G01V8/24 , F16P3/144 , H03K17/943 , H03K2217/94026 , H03K2217/94112
Abstract: A photoelectric switch for detection of an object. The photoelectric switch comprises: a light transmitter unit comprising plural light transmitters configured to emit plural light signals; a light receiver unit comprising plural optical fiber receivers in one-to-one correspondence with the plural light transmitters and configured to receive the plural light signals and to merge plural light signals, wherein an object detection area is defined between the plural light transmitters and the plural optical fiber receivers; a photoelectric conversion unit connected to the optical fiber receivers and configured to perform photoelectric conversions on the merged light signals outputted by the optical fiber receivers so as to generate an electric signal; and a control and processing unit connected to both the light transmitter unit and the photoelectric conversion unit, and configured to control and process the light signals and/or the electric signal.
Abstract translation: 一种用于检测物体的光电开关。 光电开关包括：光发射器单元，包括配置为发射多个光信号的多个光发射器; 一种光接收单元，包括与多个光发射器一一对应的多个光纤接收器，并被配置为接收多个光信号并合并多个光信号，其中在多个光发射机和 多个光纤接收器; 光电转换单元，连接到光纤接收器，并被配置为对由光纤接收器输出的合并光信号执行光电转换，以产生电信号; 以及控制和处理单元，连接到光发射单元和光电转换单元，并且被配置为控制和处理光信号和/或电信号。
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公开(公告)号：US09121811B2
公开(公告)日：2015-09-01
申请号：US13946498
申请日：2013-07-19
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Zhiqiang Chen , Li Zhang , Xuewu Wang , Haifeng Hu , Hongxin Wu , Yuanjing Li , Yinong Liu , Ziran Zhao , Yuxiang Xing , Hu Tang , Yumin Yi , Jinyu Zhang
CPC classification number: G01N23/10 , A61B6/027 , G01N23/046 , G01N2001/022 , G01N2223/419 , G01N2223/423 , G01N2223/637 , G01N2223/639 , G01V5/00
Abstract: Disclosed are a method and a device for security-inspection of liquid articles with dual-energy CT imaging. The method comprises the steps of obtaining one or more CT images including physical attributes of liquid article to be inspected by CT scanning and a dual-energy reconstruction method; acquiring the physical attributes of each liquid article from the CT image; and determining whether there are drugs concealed in the inspected liquid article based on the difference between the acquired physical attributes and reference physical attributes of the inspected liquid article. The CT scanning can be implemented by a normal CT scanning technique, or a spiral CT scanning technique. In the normal CT scanning technique, the scan position can be preset, or set by the operator with a DR image, or set by automatic analysis of the DR image.
Abstract translation: 公开了一种用于双能CT成像的液体物品的安全检查方法和装置。 该方法包括以下步骤：通过CT扫描获得包括待检查的液体物品的物理属性的一个或多个CT图像和双能量重建方法; 从CT图像获取每个液体物品的物理属性; 并且基于被检查的液体制品的所获取的物理属性和参考物理属性之间的差异来确定在被检查的液体制品中是否存在隐藏的药物。 CT扫描可以通过正常的CT扫描技术或螺旋CT扫描技术来实现。 在正常的CT扫描技术中，扫描位置可以由操作员预先设置，或者通过DR图像设置，或者通过DR图像的自动分析设置。
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公开(公告)号：US20150185053A1
公开(公告)日：2015-07-02
申请号：US14577355
申请日：2014-12-19
Applicant: Nuctech Company Limited
Inventor： Yumin Zhu , Jinyu Zhang , Hui Ding , Hu Tang
CPC classification number: G01D5/3473 , G01D5/24461 , G01D5/24476 , H01R39/08
Abstract: Disclosed is an encoder and encoding method for slip ring. The encoder includes: an encoding belt that is fixed to a slip ring and has a plurality of holes regularly arranged on the encoding belt; at least one pair of first sensors provided on one side of the encoding belt, wherein the first sensors of each pair generate a first sense signal and a first redundant sense signal respectively based on light emitted from the other side of the encoding belt and passing through the plurality of holes, when the encoding belt rotates with the slip ring; and at least one signal combiner connected to the at least one pair of the first sensors, and configured to combine the first sense signal and the first redundant sense signal to obtain a combined sense signal as a first encoded signal. With embodiments of the present invention, a redundant signal is provided by using a redundant sensor, and it is possible to avoid interference of foreign substance, improve stability of encoded signals and ensure normal operation of equipment.
Abstract translation: 公开了一种用于滑环的编码器和编码方法。 编码器包括：编码带，其固定在滑环上，并且具有规则地布置在编码带上的多个孔; 设置在所述编码带的一侧的至少一对第一传感器，其中，每对的所述第一传感器分别基于从所述编码带的另一侧发射的光并经过所述第一传感信号和所述第一冗余感测信号 当编码带与滑环一起旋转时，该多个孔; 以及至少一个信号组合器，其连接到所述至少一对所述第一传感器，并且被配置为组合所述第一感测信号和所述第一冗余感测信号，以获得作为第一编码信号的组合感测信号。 利用本发明的实施例，通过使用冗余传感器来提供冗余信号，并且可以避免异物干扰，提高编码信号的稳定性并确保设备的正常运行。
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公开(公告)号：US10430669B2
公开(公告)日：2019-10-01
申请号：US15719309
申请日：2017-09-28
Applicant: Nuctech Company Limited
Inventor： Hu Tang , Li Zhang , Zhiqiang Chen , Jiamin Zhang
IPC: G06K9/00 , H04N7/18 , H04N21/233 , H04L29/08 , G08B13/196
Abstract: A method, server and system for operating on security inspection data is disclosed. In one aspect, an example method performed by a server for operating on security inspection data includes receiving an operation request for target security inspection data from a client through a network. The target security inspection data is loaded from a storage server based on the operation request. Image processing on the loaded target security inspection data is performed. The processed target security inspection data or a graphic interface including the processed target security inspection data is encoded. The encoded target security inspection data or graphic interface is transmitted to the client through the network in a video stream.
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Patent Agency Ranking
公开(公告)号：US09523591B2
公开(公告)日：2016-12-20
申请号：US14577355
申请日：2014-12-19
Applicant: Nuctech Company Limited
Inventor： Yumin Zhu , Jinyu Zhang , Hui Ding , Hu Tang
CPC classification number: G01D5/3473 , G01D5/24461 , G01D5/24476 , H01R39/08
Abstract: Disclosed is an encoder and encoding method for slip ring. The encoder includes: an encoding belt that is fixed to a slip ring and has a plurality of holes regularly arranged on the encoding belt; at least one pair of first sensors provided on one side of the encoding belt, wherein the first sensors of each pair generate a first sense signal and a first redundant sense signal respectively based on light emitted from the other side of the encoding belt and passing through the plurality of holes, when the encoding belt rotates with the slip ring; and at least one signal combiner connected to the at least one pair of the first sensors, and configured to combine the first sense signal and the first redundant sense signal to obtain a combined sense signal as a first encoded signal. With embodiments of the present invention, a redundant signal is provided by using a redundant sensor, and it is possible to avoid interference of foreign substance, improve stability of encoded signals and ensure normal operation of equipment.
Abstract translation: 公开了一种用于滑环的编码器和编码方法。 编码器包括：编码带，其固定在滑环上，并且具有规则地布置在编码带上的多个孔; 设置在所述编码带的一侧的至少一对第一传感器，其中，每对的所述第一传感器分别基于从所述编码带的另一侧发射的光并经过所述第一传感信号和所述第一冗余感测信号 当编码带与滑环一起旋转时，该多个孔; 以及至少一个信号组合器，其连接到所述至少一对所述第一传感器，并且被配置为组合所述第一感测信号和所述第一冗余感测信号，以获得作为第一编码信号的组合感测信号。 利用本发明的实施例，通过使用冗余传感器来提供冗余信号，并且可以避免异物干扰，提高编码信号的稳定性并确保设备的正常运行。
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公开(公告)号：US09341736B2
公开(公告)日：2016-05-17
申请号：US14134845
申请日：2013-12-19
Applicant: NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
Inventor： Huaping Tang , Yuanjing Li , Ziran Zhao , Yaohong Liu , Zhanfeng Qin , Jinyu Zhang , Hu Tang
CPC classification number: G01V5/0016 , G01N23/046 , G01V5/005
Abstract: This invention relates to an X-ray goods inspection apparatus, and in particular to a goods inspection apparatus using distributed X-ray source.
Abstract translation: 本发明涉及一种X射线物品检查装置，特别涉及一种使用分布式X射线源的货物检验装置。
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公开(公告)号：US11906447B2
公开(公告)日：2024-02-20
申请号：US17471725
申请日：2021-09-10
Applicant: NUCTECH COMPANY LIMITED , Tsinghua University
Inventor： Zhiqiang Chen , Li Zhang , Xiaofei Xu , Le Shen , Ming Chang , Hu Tang , Xin Jin , Yunda Sun
IPC: G01N23/046 , G01N23/083 , G01N23/10 , G01V5/00
CPC classification number: G01N23/10 , G01N23/046 , G01N23/083 , G01N2223/1016 , G01N2223/204 , G01N2223/3301 , G01N2223/335 , G01N2223/3307 , G01N2223/3308 , G01N2223/419 , G01N2223/639 , G01N2223/643 , G01V5/005
Abstract: A multi-channel static CT device is provided, and the multi-channel static CT device includes: a scanning channel including a plurality of scanning sub-channels; a distributed X-ray source including a plurality of ray emission points arranged around the scanning channel; and a detector module including a plurality of detectors arranged around the scanning channel, wherein the plurality of detectors are arranged corresponding to the plurality of ray emission points.
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公开(公告)号：US09805504B2
公开(公告)日：2017-10-31
申请号：US14711949
申请日：2015-05-14
Applicant: Nuctech Company Limited
Inventor： Li Zhang , Zhiqiang Chen , Qingping Huang , Yunda Sun , Zhi Tang , Le Shen , Hu Tang , Qianlu Ren , Xin Jin
CPC classification number: G06T17/00 , A61B6/032 , A61B6/463 , A61B6/466 , A61B6/5205 , A61B6/5223 , G01N23/046 , G06T11/003 , G06T19/003 , G06T2207/10081 , G06T2207/10124 , G06T2207/30004 , G06T2207/30196 , G06T2210/41 , G06T2211/436 , G06T2219/016 , G06T2219/028 , G06T2219/2004
Abstract: The present disclosure discloses an image display method in a CT system. The method comprises: implementing CT scanning on an inspected object, to obtain CT projection data; organizing the CT projection data according to a predetermined interval; extracting basic data from the organized CT projection data by using a fixed angle as a start angle and using 360 degrees as an interval; forming a DR image based on the extracted basic data; reconstructing a three-dimensional image of the inspected object from the CT projection data; and displaying the DR image and the reconstructed three-dimensional image on a screen at the same time. In the solution, the CT data is processed to obtain DR data. After the DR data is obtained, a DR image is obtained directly using a DR data processing algorithm. This enables an image recognizer to more accurately and more rapidly inspect goods carried by a passenger using the existing experience in image recognition of the DR image.
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10.发明授权公开(公告)号：US09779054B2
公开(公告)日：2017-10-03
申请号：US14579443
申请日：2014-12-22
Applicant: Nuctech Company Limited
Inventor： Jinyu Zhang , Hui Ding , Hu Tang , Fei Fang
IPC: G06F13/42 , G06F13/38 , G06F13/364 , G06F11/07 , G05B15/02 , G05B19/042 , G05B23/02
CPC classification number: G06F13/4208 , G05B15/02 , G05B19/042 , G05B23/0267 , G05B2219/2642 , G05B2219/31457 , G06F11/0784 , G06F13/364 , G06F13/385
Abstract: Disclosed is system, apparatus and method for centralized management of security inspection devices, which provide connection and communication between local security inspection devices and a remote control site according to bus communication scheme. The system comprises: a plurality of security inspection devices arranged on the spot; a remote control site arranged at a remote side; and a field bus network connecting the plurality of security inspection devices with the remote control site and transmitting signals between the plurality of security inspection devices and the remote control site according to bus communication scheme. With implementations of the present invention, correct and reliable centralized management of local security inspection devices from the remote control site can be achieved with less signal lines and simpler layout of the lines.
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