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156 条记录 (耗时 0.025 秒)

    Intelligent explosion-proof table
    4.
    发明授权
    Intelligent explosion-proof table 有权

    公开(公告)号：US11454483B2

    公开(公告)日：2022-09-27

    申请号：US16214677

    申请日：2018-12-10

    申请人： Nuctech Company Limited ,  TSINGHUA UNIVERSITY

    发明人： Li Zhang ,  Gang Peng ,  Qingping Huang ,  Jianqing Dou ,  Yandi Wang ,  Kun Yang

    IPC分类号： F42D5/04 ,  G06Q50/26 ,  B64F1/36

    摘要： The present disclosure provides an intelligent explosion-proof table, including a worktable, an explosion-proof box; the worktable has a window passing through in the vertical direction. The explosion-proof box with an open top is arranged under the window of the worktable. A lifting plate which can be moved up and down and a support mechanism for driving the lifting plate to be lifted are provided inside the explosion-proof box. The lifting plate is used for placing a danger source and matches with the window and is capable of being raised into the window.

    Scanned image correction apparatus, method and mobile scanning device
    6.
    发明授权
    Scanned image correction apparatus, method and mobile scanning device 有权

    公开(公告)号：US10948427B2

    公开(公告)日：2021-03-16

    申请号：US16231373

    申请日：2018-12-21

    申请人： Tsinghua University ,  Nuctech Company Limited

    发明人： Ke Li ,  Jianmin Li ,  Weifeng Yu ,  Yulan Li ,  Xuejing Yang ,  Yuanjing Li ,  Chunguang Zong ,  Zhiqiang Chen ,  Li Zhang

    IPC分类号： G01N23/04

    摘要： The present disclosure provides a scanned image correction apparatus, method and a mobile scanning device. The apparatus includes an image collector, an arm swing detector, and an image processor. The image collector is configured to collect a scanned image of an object under inspection during a scanning process of scanning the object under inspection by the mobile scanning device, and determine an image parameter of the scanned image. The arm swing detector is disposed at a monitor point on a detector arm of the mobile scanning device, and configured to detect a displacement offset of the detector arm in a specified direction and build an arm swing model of the detector arm. The image processor is configured to determine a change relationship between the image parameter of the scanned image and the displacement offset of the detector arm, and correct the scanned image based on the change relationship.

    Vehicle detection system
    8.
    发明授权
    Vehicle detection system 有权

    公开(公告)号：US10795050B2

    公开(公告)日：2020-10-06

    申请号：US16233387

    申请日：2018-12-27

    申请人： TSINGHUA UNIVERSITY ,  Nuctech Company Limited

    发明人： Ying Li ,  Jianmin Li ,  Jinguo Cao ,  Yuan Ma ,  Yulan Li ,  Yuan He ,  Yuanjing Li ,  Hui Meng ,  Zhiqiang Chen ,  Yiwei Guo ,  Li Zhang

    IPC分类号： G01V5/00 ,  G06K9/00

    摘要： A vehicle detection system includes a transverse detector arm, two vertical detector arms, a radiation source, a plurality of transverse detectors, and a plurality of vertical detectors. The transverse detector arm may be disposed on the ground. Two vertical detector arms are disposed at both ends of the transverse detector arm. The radiation source is located above the transverse detector arm. A plurality of transverse detectors are disposed within the transverse detector arm and are laid along a length direction of the transverse detector arm for receiving ray emitted by the radiation source. The plurality of vertical detectors are symmetrically disposed on the two vertical detector arms, and each of the vertical detectors is disposed towards a center point of the radiation source for receiving ray emitted by the radiation source.

    X-ray detection method and X-ray detector
    9.
    发明授权
    X-ray detection method and X-ray detector 有权

    公开(公告)号：US10724969B2

    公开(公告)日：2020-07-28

    申请号：US16175796

    申请日：2018-10-30

    申请人： Tsinghua University ,  Nuctech Company Limited

    发明人： Yuxiang Xing ,  Xiaoyue Guo ,  Zhi Deng ,  Le Shen ,  Li Zhang ,  Zhiqiang Chen ,  Liang Li

    IPC分类号： G01N23/04 ,  A61B6/00 ,  G01N23/046 ,  A61B6/03

    摘要： An X-ray detection method and an X-ray detector are provided. The X-ray detection method according to embodiments of the present disclosure includes: dividing an energy range of photons emitted by an X-ray source into a number N of energy windows, where N is an integer greater than 0; obtaining a weighting factor for each of the number N of energy windows based on linear attenuation coefficients of a substance of interest and a background substance of an imaging target; obtaining a weighting factor matrix for M output channels of an X-ray detector based on the weighting factor for each of the number N of energy windows, where M is an integer greater than 0; and obtaining output results of the M output channels based on the weighting factor matrix and numbers of photons having an energy range falling into individual energy windows of the number N of energy windows.

    Vehicle identification methods and systems
    10.
    发明授权
    Vehicle identification methods and systems 有权

    公开(公告)号：US10607483B2

    公开(公告)日：2020-03-31

    申请号：US15300947

    申请日：2015-12-23

    申请人： Nuctech Company Limited ,  Tsinghua University

    发明人： Zhiqiang Chen ,  Li Zhang ,  Jianmin Li ,  Ziran Zhao ,  Yaohong Liu ,  Qiang Li ,  Zheng Hu ,  Jianping Gu ,  Ying Li

    IPC分类号： G08G1/054 ,  G08G1/017 ,  G06K9/46 ,  G01V5/00 ,  G08G1/015

    摘要： Disclosed is a vehicle identification method and system. The method includes: acquiring appearance information of an inspected vehicle; obtaining external features of the vehicle based on the appearance information; acquiring a transmission image of the vehicle and obtaining internal features of the vehicle from the transmission image; forming descriptions on the vehicle at least based on the external features and the internal features; and determining a vehicle model of the vehicle from a vehicle model databased by utilizing the descriptions. This method merges various types of modality information, especially introducing the transmission image, and combines the internal structure information with the appearance information, so that the present disclosure can identify a vehicle model more practically.