公开(公告)号：US20240248049A1

公开(公告)日：2024-07-25

申请号：US18575795

申请日：2022-07-07

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Qingping HUANG ,  Yong ZHOU ,  Zhenhua ZHAO ,  Hui DING ,  Xin JIN ,  Chao JI

IPC: G01N23/046

CPC classification number: G01N23/046 ,  G01N2223/3308 ,  G01N2223/401 ,  G01N2223/419 ,  G01N2223/5015

Abstract: Embodiments of the present application provides a ray scanning apparatus, which includes: a conveying device for conveying an object under inspection to pass through a scanning region of the ray scanning apparatus; a ray source assembly including a plurality of ray source modules, each of the ray source modules including at least one ray source point emitting a ray beam; and a detector assembly for detecting rays transmitting through the object under inspection during scanning and including a plurality of detector sets.

公开(公告)号：US20240219325A1

公开(公告)日：2024-07-04

申请号：US18574653

申请日：2022-07-06

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Li ZHANG ,  Zhiqiang CHEN ,  Qingping HUANG ,  Hui DING ,  Yong ZHOU ,  Xin JIN ,  Liming Yao

IPC: G01N23/10 ,  G01N23/046 ,  G01N23/083

CPC classification number: G01N23/10 ,  G01N23/046 ,  G01N23/083 ,  G01N2223/3303 ,  G01N2223/643

Abstract: Provided are an inspection system and an inspection method, the inspection system includes: a carrying device (300); at least one ray source (100) each includes a separate housing (110) to define a vacuum space and target spots enclosed within the housing (110), and a detector assembly (200). The at least one ray source (100) is rotatable between a plurality of scanning positions around a rotation axis relative to the carrying device (300). The at least one ray source (100) and the detector assembly (200) may be lifted or lowered along the rotation axis relative to the carrying device (300). When the at least one ray source (100) is located at one of scanning positions relative to the carrying device (300), the at least one ray source (100) and the detector assembly (200) are lifted or lowered along the rotation axis relative to the carrying device (300) and the at least one ray source (100) emits X-rays. After the at least one ray source (100) and the detector assembly (200) are lifted or lowered a predetermined distance relative to the carrying device (300), the at least one ray source (100) rotates around the rotation axis relative to the carrying device (300) to another one of scanning positions.

公开(公告)号：US20240212336A1

公开(公告)日：2024-06-27

申请号：US18293704

申请日：2022-07-08

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Yunda SUN ,  Juan ZHENG ,  Lu WANG ,  Tao YANG ,  Dong LI

IPC: G06V10/84 ,  G06T3/40 ,  G06T11/00 ,  G06V10/44 ,  G06V10/48

CPC classification number: G06V10/84 ,  G06T3/40 ,  G06T11/006 ,  G06V10/457 ,  G06V10/48 ,  G06T2211/428 ,  G06T2211/441 ,  G06V2201/05 ,  G06V2201/07 ,  G06V2201/12

Abstract: A method and an apparatus of identifying at least one target object for a security inspection CT are provided. The method includes: performing a dimension reduction on three-dimensional CT data to generate a plurality of two-dimensional dimension-reduced views (S10); performing a target identification on a plurality of two-dimensional views to obtain a set of two-dimensional semantic descriptions of the at least one target object, where the plurality of two-dimensional views include the plurality of two-dimensional dimension-reduced views (S20); and performing a dimension increase on the set of two-dimensional semantic descriptions to obtain a three-dimensional recognition result of the at least one target object (S30).

公开(公告)号：US20240159694A1

公开(公告)日：2024-05-16

申请号：US18284502

申请日：2022-01-11

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Yi CHENG ,  Qingping HUANG ,  Mingzhi HONG ,  Minghua QIU ,  Yao ZHANG ,  Jianxue YANG ,  Lei ZHENG

IPC: G01N23/083 ,  G21F7/06

CPC classification number: G01N23/083 ,  G21F7/06 ,  G01N2223/1016

Abstract: A radiographic inspection device and a method of inspecting an object are provided. The radiographic inspection device includes a support frame, where an inspection space applicable to inspect an object is formed within the support frame, and the inspection space has a first opening connecting to an outside; a transfer mechanism applicable to carry the object to move through the inspection space; a shielding curtain mounted at the first opening; and a driving mechanism mounted on the support frame and configured to drive the shielding curtain to move, so as to open or close the first opening. Since the driving mechanism drives the shielding curtain to rise or fall, it is possible to ensure that the lightweight object for inspection may smoothly enter the inspection space for subsequent radiographic scanning.

公开(公告)号：US20240151661A1

公开(公告)日：2024-05-09

申请号：US18284119

申请日：2022-01-14

Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

Inventor： Li ZHANG ,  Zhiqiang CHEN ,  Qingping HUANG ,  Mingzhi HONG ,  Yi CHENG ,  Minghua QIU ,  Yao ZHANG ,  Jianxue YANG ,  Lei ZHENG

IPC: G01N23/10

CPC classification number: G01N23/10 ,  G01N2223/301 ,  G01N2223/321 ,  G01N2223/3303

Abstract: A radiographic inspection apparatus and a vehicle-mounted security inspection system. The radiographic inspection apparatus includes a scanning device, where the scanning device includes: an upright framework; a slip ring rotatably provided on the upright framework; and a locking mechanism. The locking mechanism includes: a driving mechanism provided on the upright framework; and a contact portion provided on the driving mechanism to come into contact with an outer ring of the slip ring under a driving of the driving mechanism, so as to prevent the slip ring from rotating relative to the upright framework.

公开(公告)号：US20240092584A1

公开(公告)日：2024-03-21

申请号：US18255072

申请日：2021-11-22

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Li ZHANG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Qingping HUANG ,  Weijun GUO ,  Liming YAO ,  Hui DING ,  Junhao LIU ,  Jiajia ZHOU

IPC: B65G13/10 ,  B65G13/12

CPC classification number: B65G13/10 ,  B65G13/12 ,  B65G21/2045

Abstract: A conveying device (100) and an inspection system (1000) are provided. The conveying device includes: a first support frame (1); a first conveying mechanism (2) and a second conveying mechanism (3) which are installed on the first support frame; and a switching mechanism (4) configured to selectively lift the first conveying mechanism or the second conveying mechanism in a vertical direction, such that the first conveying mechanism or the second conveying mechanism carries goods (401) and conveys the goods in a first horizontal direction or a second horizontal direction different from the first horizontal direction. The conveying device may achieve a positioning and a smooth continuous conveying of goods, and achieve a smooth conveying and a calibrated positioning of the goods in different postures.

公开(公告)号：US20230301604A1

公开(公告)日：2023-09-28

申请号：US18249959

申请日：2021-09-27

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Li ZHANG ,  Zhiqiang CHEN ,  Mingzhi HONG ,  Qingping HUANG ,  Zinan WANG ,  Jinning LIANG ,  Hongbin HOU

IPC: A61B6/03 ,  F16C35/02

CPC classification number: A61B6/035 ,  F16C35/02

Abstract: Disclosed is a support frame (1) of a CT imaging system, including: a connection flat plate portion (10); a support body portion (20) disposed on the connection flat plate portion (10); an X-ray source installation reference portion (30) disposed on the connection flat plate portion (10); an electrical installation portion (40); a cooling component installation portion (50); and a through hole (60), wherein the through hole is surrounded by the support body portion (20), the X-ray source installation reference portion (30), the electrical installation portion (40) and the cooling component installation portion (50), and the through hole penetrates the connection body portion (10). The connection flat plate portion (10), the support body portion (20), the X-ray source installation reference portion (30), the electrical installation portion (40) and the cooling component installation portion (50) are integrally formed.

公开(公告)号：US20220099601A1

公开(公告)日：2022-03-31

申请号：US17420681

申请日：2020-01-03

Applicant: NUCTECH (BEIJING) COMPANY LIMITED ,  NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： 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: G01N23/10 ,  G01N23/04 ,  G01N23/083

Abstract: 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.

公开(公告)号：US20210082221A1

公开(公告)日：2021-03-18

申请号：US17017967

申请日：2020-09-11

Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

Inventor： Li ZHANG ,  Gang PENG ,  Qingping HUANG ,  Liang LI ,  Fan YANG ,  Jiabao CHEN ,  Kun CHENG ,  Zhifeng HE

IPC: G07C9/29 ,  G07C9/00 ,  G07C9/20

Abstract: The present disclosure provides a smart lock, including: a lock body and an unlocking structure; a Bluetooth communication module configured to receive a lock instruction or an unlock instruction based on Bluetooth communication; and one or more binding tags, each binding tag being associated with a Bluetooth address of the smart lock, wherein the unlocking structure is configured to lock or unlock the smart lock based on the lock instruction or the unlock instruction, or lock or unlock the smart lock based on an operation performed for the one or more binding tags. The present disclosure further provides a system and method for monitoring an object equipped with the smart lock.

公开(公告)号：US20190204244A1

公开(公告)日：2019-07-04

申请号：US16234630

申请日：2018-12-28

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Hao YU ,  Ying LI ,  Weizhen WANG ,  Quanwei SONG ,  Dongyu WANG ,  Haojie CHI ,  Jianmin LI ,  Yulan LI ,  Chunguang ZONG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Li ZHANG

IPC: G01N23/203 ,  G01V5/00

CPC classification number: G01N23/203 ,  G01V5/0025

Abstract: The present disclosure discloses a vehicle-mounted type back scattering inspection system. The back scattering imaging device has a vehicle-mounted working state and a ground working state, and in the vehicle-mounted working state, the back scattering imaging device performs inspection work in the carriage; in the ground working state, the back scattering imaging device performs the inspection work on the ground at the outside of the carriage; and the back scattering imaging device is separately arranged relative to the carriage and is movable between the carriage and the ground to switch between the vehicle-mounted working state and the ground working state.