公开(公告)号：US20240377553A1

公开(公告)日：2024-11-14

申请号：US18574638

申请日：2022-07-06

Applicant: Tsinghua University ,  Nuctech Company Limited

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

IPC: G01V5/226

Abstract: Provided are an inspection method, and an inspection system including: at least one ray source; a detector assembly and a conveying device. At least one ray source and the detector assembly may move in a traveling direction relative to the conveying device, so that the to-be-inspected object may enter an inspection region. When viewed along a central axis of the inspection region, at least one ray source may translate between scanning positions, and a translation distance of at least one ray source between two adjacent scanning positions is greater than a spacing between adjacent target spots of each ray source. When at least one ray source is located at one scanning position, at least one ray source and the detector assembly move in the traveling direction and at least one ray source emits X-rays. After moving a predetermined distance, at least one ray source translates to another scanning position.

公开(公告)号：US20240210333A1

公开(公告)日：2024-06-27

申请号：US18284623

申请日：2022-01-13

Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

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

IPC: G01N23/083

CPC classification number: G01N23/083 ,  G01N2223/1016 ,  G01N2223/32 ,  G01N2223/321 ,  G01N2223/643

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 an 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 opening; and a driving mechanism mounted on the support frame and configured to drive the shielding curtain to move, in response to the object getting close to or moving away from the opening, so as to open or close the opening.

公开(公告)号：US20240203126A1

公开(公告)日：2024-06-20

申请号：US18530332

申请日：2023-12-06

Applicant: NUCTECH COMPANY LIMITED ,  NUCTECH JIANGSU COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Hu TANG ,  Yunda SUN ,  Dong LI ,  Dan YAN ,  Yueyi LIU

IPC: G06V20/52 ,  G06V20/64

CPC classification number: G06V20/52 ,  G06V20/64 ,  G06V2201/07

Abstract: An intelligent passenger inspection channel system and method are provided. The system includes: a passenger entrance device; a first camera, provided at the passenger entrance device for capturing a first image of a number of passengers going to pass through the device; a luggage inspection device; a second camera, provided at an entrance of the luggage inspection device for capturing a second image of a luggage entering the entrance and a corresponding passenger; a third camera, provided at an exit of the luggage inspection device for capturing a third image of a luggage leaving the exit and a corresponding passenger; a personnel security inspection device; a fifth camera, provided at the personnel security inspection device for capturing a fifth image of an inspector's inspection behavior; and a sixth camera, provided in a passenger inspection channel for capturing a sixth image of an entire travel of a passenger within the channel.

公开(公告)号：US20240176039A1

公开(公告)日：2024-05-30

申请号：US18551578

申请日：2022-01-25

Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

Inventor： Li ZHANG ,  Zhiqiang CHEN ,  Yi CHENG ,  Qingping HUANG ,  Mingzhi HONG ,  Lei ZHENG

IPC: G01V5/226

CPC classification number: G01V5/226

Abstract: A vehicle-mounted security inspection system includes a mobile chassis. A first cabin provided on the mobile chassis includes an object security inspection apparatus, which is used to perform a security inspection on an object. A second cabin provided on the mobile chassis includes a human body security inspection apparatus which is used to perform a security inspection on a human body. The second cabin is flexibly connected to the first cabin, so that in a first state, the second cabin is located at one end of the first cabin in a longitudinal direction of the mobile chassis, and in a second state, the second cabin is located on one side of the first cabin in the longitudinal direction of the mobile chassis.

公开(公告)号：US20240156293A1

公开(公告)日：2024-05-16

申请号：US18284026

申请日：2022-01-11

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

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

IPC: A47H5/02 ,  A47H1/104 ,  H05K9/00

CPC classification number: A47H5/02 ,  A47H1/104 ,  H05K9/0018

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 an entrance and an exit which are connecting to an outside; a transfer channel applicable to carry the object to move through the inspection space; a first shielding curtain and a second shielding curtain respectively mounted at the entrance and the exit; and a driving mechanism mounted on the support frame and configured to drive at least one of the first shielding curtain and the second shielding curtain to move, in response to the object getting close to or moving away from at least one of the entrance and the exit, so as to open or close the at least one of the entrance or the exit.

公开(公告)号：US20240104884A1

公开(公告)日：2024-03-28

申请号：US18013104

申请日：2022-10-08

Applicant: NUCTECH COMPANY LIMITED

Inventor： Li ZHANG ,  Zhiqiang CHEN ,  Ming CHANG ,  Xin JIN ,  Qingping HUANG ,  Xiaofei XU ,  Mingzhi HONG ,  Liguo ZHANG

IPC: G06V10/44 ,  G01N23/04 ,  G06T7/50 ,  G06T7/62 ,  G06T7/70

CPC classification number: G06V10/44 ,  G01N23/04 ,  G06T7/50 ,  G06T7/62 ,  G06T7/70 ,  G06V2201/07

Abstract: A method of acquiring feature information of a detected object is provided, including: controlling the detected object to pass through a detection apparatus; controlling an imaging system to perform radiation scanning on the detected object acquiring a radiation scanning image of the detected object acquiring feature information of the detected object through the radiation scanning image. The detected object includes a first part, a detection part and a second part sequentially in a first direction. The acquiring feature information of the detected object through the radiation scanning image includes: acquiring a first boundary line between the detection part and the first part and a second boundary line between the detection part and the second part through the radiation scanning image; and calculating a dimension between the first boundary line and the second boundary line in the first direction to acquire a dimension of the detection part in the first direction.

公开(公告)号：US20230144259A1

公开(公告)日：2023-05-11

申请号：US18052671

申请日：2022-11-04

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Yunda SUN ,  Zhenhua ZHAO ,  Xin JIN ,  Le SHEN ,  Wuyang LIANG

IPC: G01N23/046 ,  G06T11/00 ,  G01N23/083

CPC classification number: G01N23/046 ,  G06T11/005 ,  G01N23/083 ,  G01N2223/643 ,  G01N2223/04 ,  G01N2223/419

Abstract: The method includes: receiving an encoder signal and a ray machine output beam signal, and initially synchronizing the encoder signal and the ray machine output beam signal; recording coded value M of the encoder at moment tm, and coded value N of the encoder at moment tm+1, where M, N, and m are integers; determining that duration from the moment tm to the moment tm+1 is an actual output beam time interval T of the ray machine, when it is determined that a difference value between the coded value M and the coded value N satisfies preset value a, a being an integer; determining gap time TG in the actual output beam time interval T based on a preset output beam time interval TJ of the imaging system and the actual output beam time interval T; and controlling the ray machine not to emit beam within the gap time TG.

公开(公告)号：US20220357288A1

公开(公告)日：2022-11-10

申请号：US17661257

申请日：2022-04-28

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Qingping HUANG ,  Yong ZHOU ,  Hui DING ,  Chao JI

IPC: G01N23/046 ,  G01N33/12 ,  G01N23/083

Abstract: The present disclosure relates to a static CT detection device, including: a shielding body, formed with a detection channel through which an object under detection can pass; a ray source, emitting rays for detecting the object under detection when the object under detection passes through the detection channel; and a detector, for acquiring the rays emitted by the ray source and having passed through the detection channel, wherein the shielding body is formed with an opening portion, and the opening portion extends from an inlet of the detection channel to an outlet of the detection channel.

公开(公告)号：US20220203546A1

公开(公告)日：2022-06-30

申请号：US17560666

申请日：2021-12-23

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Jin CUI ,  Bin HU ,  Jinlu LI ,  Shiqiang WANG ,  Chunhui LIU ,  Mengchen LIU

IPC: B25J9/16 ,  C12Q1/06

Abstract: A sampling robot, a robot system for goods sampling and detection and a detection method are disclosed. The image collection unit takes photos of a sample. The refrigeration unit stores the sample at a preset temperature. The biometric information collection unit collects the biometric information of the operator. The intelligent mobile unit moves according to a planned path. The control unit provides destination information to the intelligent mobile unit and judges whether the current sample is a sample to be detected, and judges the biometric information of the operator.

公开(公告)号：US20220127080A1

公开(公告)日：2022-04-28

申请号：US17511874

申请日：2021-10-27

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Jinning LIANG ,  Qingping HUANG ,  Mingzhi HONG ,  Yanhua LU ,  Bo LI ,  Yue LI ,  Majie WENG

IPC: B65G13/07 ,  B65G47/57

Abstract: An automatically tray feeding device includes: at least one conveying mechanism configured to convey a tray at different heights; at least one lifting mechanism configured to move the tray on a conveying mechanism at a first height to a conveying mechanism at a second height different from the first height; and a sorting table frame configured to carry the at least one conveying mechanism and the at least one lifting mechanism.