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公开(公告)号：US20210364620A1
公开(公告)日：2021-11-25
申请号：US17256851
申请日：2019-06-06
Applicant: NUCTECH COMPANY LIMITED
Inventor： Shangmin SUN , Yu HU , Sheng YAO , Tao WANG , Xibin YIN
Abstract: The present disclosure provides a smart automatic frequency control (AFC) apparatus, including: a phase shift module, connected to a first signal input terminal and configured to: receive an incident wave from the first signal input terminal, perform a phase shift on the incident wave according to a phase shift parameter so as to generate a phase-shifted signal, and output the phase-shifted signal to a phase detection module; and the phase detection module, connected to the phase shift module and a second signal input terminal and configured to: receive a reflected wave from the second signal input terminal, perform a phase detection on the phase-shifted signal and the reflected wave so as to generate a phase difference signal, and output the phase difference signal via a control interface.
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公开(公告)号：US20220099857A1
公开(公告)日：2022-03-31
申请号：US17420678
申请日：2020-01-03
Inventor： Xuping FAN , Quanwei SONG , Yu HU , Shangmin SUN
Abstract: The present disclosure relates to a security inspection device and a transfer method, and the security inspection device includes an arm frame, provided with detectors, and configured to form an inspection channel; a first compartment, internally provided with a radiation source and connected with the arm frame, a protection wall, connected with the first compartment or the arm frame, and configured to perform radiation protection for an object to be protected, and a tire assembly, configured to enable the security inspection device to move relative to the ground, and the arm frame, the first compartment, the protection wall and the tire assembly are set to be transported together in a connected state.
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公开(公告)号：US20220082723A1
公开(公告)日：2022-03-17
申请号：US17420132
申请日：2020-01-03
Inventor： Quanwei SONG , Xuping FAN , Junping SHI , Yuan HE , Hui MENG , Chunguang ZONG , Yu HU , Shangmin SUN , Jinguo CAO
IPC: G01V5/00
Abstract: The present disclosure relates to a security inspection device and a transfer method, and the security inspection device includes an arm frame, provided with detectors, and configured to form an inspection channel, a first compartment, internally provided with a radiation source and connected with the arm frame, a protection wall, connected with the first compartment or the arm frame, and configured to perform radiation protection for an object to be protected, and a tire, configured to enable the security inspection device to move relative to the ground, and the arm frame, the first compartment and the protection wall are set to be transported together in a connected state.
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公开(公告)号：US20210270991A1
公开(公告)日：2021-09-02
申请号：US17255394
申请日：2020-01-06
Inventor： Yanwei XU , Weifeng YU , Yu HU , Chunguang ZONG , Shangmin SUN
IPC: G01V5/00 , G01S17/894 , G06K9/78
Abstract: The present disclosure relates to a security scanning inspection system and method. The security scanning inspection system comprises a detector, a scanning device and a controller, wherein the detector is configured to detect a protective attribute of an object to be inspected; the scanning device is movably arranged and the scanning device is configured to emit a scanning ray during movement to perform a security scanning inspection on the object to be inspected, the scanning device comprising at least two working modes, wherein a dose of a scanning ray in each working mode is different from a dose of a scanning ray in any other working modes; and the controller configured to select a working mode of the scanning device according to the protective attribute of the object to be inspected detected by the detector.
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公开(公告)号：US20240085349A1
公开(公告)日：2024-03-14
申请号：US18259772
申请日：2021-12-15
Applicant: NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
Inventor： Zhiqiang CHEN , Lei LIU , Shangmin SUN , Chunguang ZONG , Yu HU , Yuan MA , Zheng JI
CPC classification number: G01N23/04 , G01N23/10 , G01V5/0016
Abstract: The present disclosure provides a radiation inspection system, including a container respectively provided with an entrance and an exit on opposite side walls thereof; and a radiation scanning imaging device disposed in the container and having an inspection channel. The radiation scanning imaging device includes a ray source, the ray source includes ray generators, and ray generators are configured to emit ray beams at different angles, so that the radiation scanning imaging device performs radiation scanning inspection on an object to be inspected passing through the inspection channel from the entrance to the exit.
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Patent Agency Ranking
公开(公告)号：US20230288350A1
公开(公告)日：2023-09-14
申请号：US18013555
申请日：2021-07-02
Applicant: NUCTECH COMPANY LIMITED
Inventor： Zhiqiang CHEN , Yuanjing LI , Shangmin SUN , Chunguang ZONG , Yu HU , Huaping TANG , Bicheng LIU , Weizhen WANG
IPC: G01N23/203
CPC classification number: G01N23/203 , G01N2223/316 , G01N2223/3301 , G01N2223/501
Abstract: The present invention relates to a backscatter imaging device, a control method and an inspection system. The backscatter imaging device includes a ray source assembly configured to emit rays to a scanning area; a backscatter detector array including a plurality of backscattering detectors and configured to receive scattered photons when the rays are backscattered by an object within the scanning area; and a first collimator assembly including a plurality of first collimating channels corresponding to the plurality of backscatter detectors respectively, arranged on one side of the backscatter detector array adjacent to the scanning area, and configured to align the scattered photons when the rays are backscattered by the object, and the plurality of backscatter detectors receive scattered photons corresponding to a plurality of depths in the object respectively; and at least part of the plurality of first collimation channels have an adjustable collimation angle.
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公开(公告)号：US20210364455A1
公开(公告)日：2021-11-25
申请号：US17255968
申请日：2020-01-03
Inventor： 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: G01N23/20008 , G01N23/203
Abstract: 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.
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公开(公告)号：US20210354738A1
公开(公告)日：2021-11-18
申请号：US17287116
申请日：2019-10-08
Applicant: NUCTECH COMPANY LIMITED
Inventor： Yanwei XU , Weifeng YU , Yu HU , Shangmin SUN
IPC: B61L27/00
Abstract: The present disclosure relates to a train identification system and method, and a train safety inspection system and method. The train identification system includes: a remote detection component, configured to acquire overall feature information of an inspected train through remote monitoring; and an identification device, configured to determine at least one of a type and a traveling situation of the inspected train according to the acquired overall feature information.
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公开(公告)号：US20240319401A1
公开(公告)日：2024-09-26
申请号：US18260008
申请日：2021-12-10
Applicant: NUCTECH COMPANY LIMITED , NUCTECH (BEIJING) COMPANY LIMITED
Inventor： Yanwei XU , Shangmin SUN , Chunguang ZONG , Yu HU , Yuan MA
IPC: G01V5/22
CPC classification number: G01V5/232
Abstract: A vehicle safety inspection system and method are provided. The vehicle safety inspection system includes: a scanning device mounted in an inspection region for scanning a detected vehicle; an imaging device for acquiring an image of the vehicle being driven into the inspection region; a recognition module for recognizing the image and determining a type of the vehicle according to a recognized image; a selection module for selecting a feature of a trunk of the vehicle according to a determined type of the vehicle; a position sensor for detecting a position of a predetermined part of the vehicle in the inspection region; and a controller for controlling the scanning device to scan and inspect the trunk when a front end section of the trunk of the vehicle is determined to enter a scanning region of the scanning device according to the feature and position of the vehicle.
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公开(公告)号：US20240069240A1
公开(公告)日：2024-02-29
申请号：US18260037
申请日：2021-12-09
Applicant: NUCTECH COMPANY LIMITED
Inventor： Lei LIU , Zheng JI , Shangmin SUN , Chunguang ZONG , Yu HU , Yuan MA
CPC classification number: G01V5/0016 , G01N23/10 , G01N2223/643
Abstract: The present disclosure provides a radiation inspection device, which has a transportation state and a working state, and includes a container with an adjustable width, and the width of the container in the transportation state is smaller than that in the working state; a radiation inspection apparatus arranged in the container and including a radiation source and a detector, and in the transportation state, the length of the radiation inspection apparatus is arranged along the length direction of the container, and in the working state, the length of the radiation inspection apparatus is arranged along the width direction of the container to perform radiation scanning inspection on vehicles passing through the container along the length direction; a rotating apparatus arranged in the container and configured to rotate the radiation inspection apparatus when the radiation inspection device is switched between the transportation state and the working state.
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