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1. 发明授权

US11613913B2 Intelligent lock 有权
公开(公告)号：US11613913B2
公开(公告)日：2023-03-28
申请号：US15733351
申请日：2020-01-13
申请人： Nuctech Company Limited , Tsinghua University
发明人： Zhiqiang Chen , Yuanjing Li , Xianghao Wu , Shiguo Liu , Dawei Shi
IPC分类号： E05B47/00 , E05B47/06 , E05B67/06
摘要： The present disclosure provides an intelligent lock. In an embodiment, the intelligent lock includes: a lock body having a lock hole; a lock lever, the lock lever being capable of being plugged into and being unplugged out of the lock hole of the lock body; a first restricting member movably provided inside the lock body, and capable of being moved and latched into the lock hole to restrict the plugging of the lock lever into the lock hole or the unplugging of the lock lever out of the lock hole; a second restricting member movably provided inside the lock body, and capable of being abutted against the first restricting member so as to restrict a movement of the first restricting member; a detecting device provided in the lock body, and configured to detect the plugging operation of the lock lever into the lock hole or the unplugging operation of the lock lever out of the lock hole and to send a detection signal; and a main control element communicatively connected to the detecting device, and configured to determine a locking state of the intelligent lock in accordance with the detection signal sent by the detecting device.

2. 发明授权

US11573322B2 Laser speed measuring method, control device and laser velocimeter 有权
公开(公告)号：US11573322B2
公开(公告)日：2023-02-07
申请号：US16826235
申请日：2020-03-22
申请人： NUCTECH COMPANY LIMITED , NUCTECH (BEIJING) COMPANY LIMITED
发明人： Jian Li , Shangmin Sun , Yongming Wang , Yanwei Xu , Weifeng Yu , Yu Hu , Chunguang Zong
IPC分类号： G01S17/58 , G01S7/48 , G01S7/481 , G01S17/08
摘要： The present disclosure provides a laser speed measuring method, control device and a laser velocimeter, and relates to the technical field of security inspection. The laser speed measuring method comprises the steps of: acquiring detection data within a predetermined detection angle range in a plurality of paralleled horizontal planes having different heights, from a plurality of laser rays detected towards a road extending direction in the horizontal plane; acquiring three-dimensional point cloud data according to the detection data; determining a position of a measured object in the road extending direction according to the three-dimensional point cloud data; and determining a speed of the measured object according to the position change of the measured object along the road extending direction at different timing.

3. 发明申请

US20220404312A1 GAS ANALYSIS DEVICE AND METHOD FOR DETECTING SAMPLE GAS 有权
公开(公告)号：US20220404312A1
公开(公告)日：2022-12-22
申请号：US17806805
申请日：2022-06-14
申请人： Nuctech Company Limited
发明人： Yan Wang , Qingjun Zhang , Yuanjing Li , Zhiqiang CHEN , Jianmin Li , Yaohong Liu , Ge Li , Zhongyuan Hao , Nei Yang , Guangqin Li
IPC分类号： G01N27/623 , H01J49/42 , H01J49/00 , H01J49/06
摘要： The present disclosure provides a gas analysis device and a method for detecting sample gas. The gas analysis device includes: an ion mobility spectrometer including an ion mobility tube, an ion gate, a plurality of electrodes, a suppression grid, and a Faraday plate sequentially disposed in the ion mobility tube, wherein the Faraday plate is configured to receive sample ions discharged from the suppression grid, and the Faraday plate is provided with a through hole; a mass spectrometer; a gate valve disposed between the Faraday plate and an ion inlet of the mass spectrometer; and a controller configured to control an opening or closing of the gate valve to allow the sample ions discharged from the suppression grid to flow into the mass spectrometer through the through hole of the Faraday plate when the gate valve is opened.

4. 发明授权

US11493447B2 Method for removing background from spectrogram, method of identifying substances through Raman spectrogram, and electronic apparatus 有权
公开(公告)号：US11493447B2
公开(公告)日：2022-11-08
申请号：US16473495
申请日：2017-11-17
申请人： Nuctech Company Limited
发明人： Wei Gou , Hongqiu Wang , Huacheng Feng
IPC分类号： G01J3/44 , G01N21/65 , G01J3/02 , A61B5/00
摘要： The disclosure provides a method for removing background from a spectrogram, including: finding out peak information of a raw spectrogram, the peak information including a peak position, a starting point, an ending point, and a peak width w of a peak; processing, within each peak area defined by the starting point and the ending point of each peak of the raw spectrogram, each peak of the raw spectrogram by using a SNIP method so as to obtain background data within each peak area; replacing, within each peak area, data of the raw spectrogram with the background data obtained through processing by using the SNIP method, so as to form a background spectrogram in a fitting way; smoothing the formed background spectrogram; and subtracting the smoothed background spectrogram from the raw spectrogram so as to obtain a spectrogram with removed background.

5. 发明授权

US11369333B2 Method and apparatus for detecting dose distribution of article 有权
公开(公告)号：US11369333B2
公开(公告)日：2022-06-28
申请号：US16946508
申请日：2020-06-24
申请人： Tsinghua University , Nuctech Company Limited , Nucway Company Limited
发明人： Zhiqiang Chen , Yuanjing Li , Zhiwei Han , Guang Yang , Huaili Qin , Wenyuan Qi , Shan Kuang , Aifeng Liang , Yanqin Liu
IPC分类号： A61B6/00 , A61B6/02
摘要： The present disclosure provides a method and apparatus for detecting a dose distribution of an article. The method includes performing a fluoroscopy scanning on the article to be detected, to obtain mass data per unit area or unit volume for each point of the article to be detected; obtaining corresponding dose distribution data based on the mass data per unit area or unit volume and a preset mapping model, wherein the preset mapping model includes a mapping relationship between mass per unit area or unit volume and the dose distribution of the article under irradiation of a preset amount of energy; and matching the dose distribution data with a fluoroscopy image of the article to be detected, to generate and display a radiation image.

6. 发明申请

US20220115576A1 TERAHERTZ DETECTOR AND METHOD OF MANUFACTURING TERAHERTZ DETECTOR 有权
公开(公告)号：US20220115576A1
公开(公告)日：2022-04-14
申请号：US17418967
申请日：2019-10-10
申请人： NUCTECH COMPANY LIMITED , Tsinghua University
发明人： Ziran ZHAO , Yingxin WANG , Meng CHEN , Xuming MA
IPC分类号： H01L37/02
摘要： A terahertz detector and a method of manufacturing a terahertz detector, wherein the terahertz detector including a substrate (2) and at least one detection unit. Each detection unit includes: a channel material (1) arranged on the substrate, two electrodes (3, 4) respectively in ohmic contact with both ends of the channel material (1) in a longitudinal direction, and a three-dimensional grapheme (5) in direct or indirect thermal contact with the channel material (1).

7. 发明授权

US11295871B2 Collimator assembly and ray detection apparatus 有权
公开(公告)号：US11295871B2
公开(公告)日：2022-04-05
申请号：US16668796
申请日：2019-10-30
申请人： NUCTECH COMPANY LIMITED
发明人： Hanping Li , Yuecheng Hu , Kun Zhao
IPC分类号： G21K1/02 , A61B6/06
摘要： The disclosure provides a collimator assembly, comprising at least at least two collimators configured to be moveable relative to each other such that the collimator assembly is switchable between at least two collimation modes; in respective collimation modes, the at least two collimators are superposed with each other in a thickness direction of the collimator assembly, such that the collimator assembly presents different combined patterns for collimating and shielding rays incident onto the collimator assembly and that the collimator assembly has corresponding ray shielding thickness for effectively shielding rays.

8. 发明申请

US20220099858A1 SECURITY INSPECTION DEVICE 有权
公开(公告)号：US20220099858A1
公开(公告)日：2022-03-31
申请号：US17420676
申请日：2020-01-06
申请人： NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY , NUCTECH (BEIJING) COMPANY LIMITED
发明人： Chunguang ZONG , Quanwei SONG , Kejin GAO , Shangmin SUN , Junping SHI , Yuan HE , Yu HU , Feng WANG , Jinguo CAO
IPC分类号： G01V5/00 , G01N23/10
摘要： An inspection device is provided, includes a first vehicle body, a radiation source, arranged in the first vehicle body, a second vehicle body, a protective wall, arranged on the second vehicle body, a boom, and detectors, arranged on the boom, and the boom is rotatably connected to the first vehicle body and the second vehicle body, forms an inspection passage together with the first vehicle body and the second vehicle body. The inspection device can improve the adaptability.

9. 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.

10. 发明申请

US20220084336A1 VEHICLE INSPECTION METHOD, APPARATUS AND SYSTEM, AND COMPUTER-READABLE STORAGE MEDIUM 有权
公开(公告)号：US20220084336A1
公开(公告)日：2022-03-17
申请号：US17421709
申请日：2020-01-23
申请人： NUCTECH COMPANY LIMITED , NUCTECH (BEIJING) COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Yongming WANG , Junjie TU , Chuan GAO , Yanwei XU , Weifeng YU , Chunguang ZONG , Yu HU
IPC分类号： G07C5/08 , B60W40/10
摘要： This disclosure provides a vehicle inspection method, apparatus, system, and computer-readable storage medium and relates to the field of security inspection technologies. The vehicle inspection method of the present disclosure includes: acquiring vehicle profile information of a vehicle through a first sensor that performs measurement in a direction perpendicular to a passage, and determining a feature point of the vehicle according to the vehicle profile information; determining a position of the vehicle in the passage through a second sensor that performs measurement in a direction along the passage, and determining a position of the feature point according to the position of the vehicle in the passage; and switching an operating mode of a ray source based on a preset strategy according to a position relation between the position of the feature point and the ray source.

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