Patents by Inventor Hejun Zhou

Hejun Zhou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11822043
    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.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: November 21, 2023
    Inventors: Zhiqiang Chen, Yuanjing Li, Li Zhang, Jianmin Li, Shangmin Sun, Chunguang Zong, Yu Hu, Quanwei Song, Hejun Zhou, Weifeng Yu, Jinguo Cao, Bing Fu
  • Patent number: 11327198
    Abstract: The present disclosure relates to the technical field of CT detection, in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure includes a scanning device and an imaging device, wherein the scanning device having a radioactive source device and a detection device is configured to rotate at a nonuniform speed in at least partial process of scanning an object to be detected; and the imaging device generates a CT image based on effective detection data, wherein the effective detection data refer to data acquired each time the detection device rotates by a preset angle. In the present disclosure, the imaging device of the CT inspection system generates a CT image based on data acquired each time the detection device rotates by a preset angle, which, compared with traditional image collection solutions, can effectively reduce image deformation and improve accuracy of detection results.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 10, 2022
    Inventors: Xiulin Ni, Jianmin Li, Haitian Tan, Yulan Li, Weifeng Yu, Yuanjing Li, Hejun Zhou, Zhiqiang Chen, Chunguang Zong, Li Zhang
  • Publication number: 20220099601
    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.
    Type: Application
    Filed: January 3, 2020
    Publication date: March 31, 2022
    Inventors: Zhiqiang CHEN, Yuanjing LI, Li ZHANG, Jianmin LI, Shangmin SUN, Chunguang ZONG, Yu HU, Quanwei SONG, Hejun ZHOU, Weifeng YU, Jinguo CAO, Bing FU
  • Patent number: 10935691
    Abstract: The present disclosure relates to the technical field of CT detection, and in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure comprises a radioactive source device, a detection device, a rotation monitoring device and an imaging device, wherein the detection device obtains detection data at a frequency that is N times a beam emitting frequency of the radioactive source device; the rotation monitoring device detects a rotation angle of the detection device and transmits a signal to the imaging device each time the detection device rotates by a preset angle; the imaging device determines a rotational position of the detection device each time the radioactive source device emits a beam according to the signal transmitted by the rotation monitoring device and the detection data of the detection device.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: March 2, 2021
    Inventors: Kejun Kang, Jianmin Li, Xiulin Ni, Yulan Li, Yuanjing Li, Zhiqiang Chen, Li Zhang, Liang Li, Xiang Zou, Weifeng Yu, Hejun Zhou, Chunguang Zong
  • Patent number: 10782246
    Abstract: A movable ray inspection system used to be mounted in a container yard to inspect an object within a container is provided. The movable ray inspection system includes: a ray generator device configured to emit a ray, a ray receiving device configured to receive the ray, and at least one chamber for receiving the ray generator device and the ray receiving device therein. Each of the at least one chamber is configured to be a standard container or a chamber which has a same shape, a same size and a same structure as a standard container such that the movable ray inspection system is adapted to be stacked in the container yard.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: September 22, 2020
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Chunguang Zong, Ying Li, Hejun Zhou, Quanwei Song, Jianmin Li, Yulan Li, Yuanjing Li, Li Zhang, Zhiqiang Chen
  • Publication number: 20190204242
    Abstract: The present disclosure relates to the technical field of CT detection, in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure includes a scanning device and an imaging device, wherein the scanning device having a radioactive source device and a detection device is configured to rotate at a non-uniform speed in at least partial process of scanning an object to be detected; and the imaging device generates a CT image based on effective detection data, wherein the effective detection data refer to data acquired each time the detection device rotates by a preset angle. In the present disclosure, the imaging device of the CT inspection system generates a CT image based on data acquired each time the detection device rotates by a preset angle, which, compared with traditional image collection solutions, can effectively reduce image deformation and improve accuracy of detection results.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Xiulin NI, Jianmin LI, Haitian TAN, Yulan LI, Weifeng YU, Yuanjing LI, Hejun ZHOU, Zhiqiang CHEN, Chunguang ZONG, Li ZHANG
  • Publication number: 20190204243
    Abstract: The present disclosure relates to the technical field of CT detection, and in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure comprises a radioactive source device, a detection device, a rotation monitoring device and an imaging device, wherein the detection device obtains detection data at a frequency that is N times a beam emitting frequency of the radioactive source device; the rotation monitoring device detects a rotation angle of the detection device and transmits a signal to the imaging device each time the detection device rotates by a preset angle; the imaging device determines a rotational position of the detection device each time the radioactive source device emits a beam according to the signal transmitted by the rotation monitoring device and the detection data of the detection device.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Kejun KANG, Jianmin LI, Xiulin NI, Yulan LI, Yuanjing LI, Zhiqiang CHEN, Li ZHANG, Liang LI, Xiang ZOU, Weifeng YU, Hejun ZHOU, Chunguang ZONG
  • Patent number: 10007022
    Abstract: A ray inspection system used to be mounted in a container yard to inspect an object within a container is provided. The ray inspection system includes: a ray generator device configured to emit a ray, a ray receiving device configured to receive the ray, and at least one chamber for receiving the ray generator device and the ray receiving device therein. Each of the at least one chamber is configured to be a standard container or a chamber which has a same shape, a same size and a same structure as a standard container such that the ray inspection system is adapted to be stacked in the container yard.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: June 26, 2018
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Chunguang Zong, Ying Li, Hejun Zhou, Jianmin Li, Yuanjing Li, Yulan Li, Li Zhang, Zhiqiang Chen
  • Publication number: 20180172604
    Abstract: A movable ray inspection system used to be mounted in a container yard to inspect an object within a container is provided. The movable ray inspection system includes: a ray generator device configured to emit a ray, a ray receiving device configured to receive the ray, and at least one chamber for receiving the ray generator device and the ray receiving device therein. Each of the at least one chamber is configured to be a standard container or a chamber which has a same shape, a same size and a same structure as a standard container such that the movable ray inspection system is adapted to be stacked in the container yard.
    Type: Application
    Filed: November 30, 2017
    Publication date: June 21, 2018
    Inventors: Chunguang Zong, Ying Li, Hejun Zhou, Quanwei Song, Jianmin Li, Yulan Li, Yuanjing Li, Li Zhang, Zhiqiang Chen
  • Publication number: 20180081078
    Abstract: A ray inspection system used to be mounted in a container yard to inspect an object within a container is provided. The ray inspection system includes: a ray generator device configured to emit a ray, a ray receiving device configured to receive the ray, and at least one chamber for receiving the ray generator device and the ray receiving device therein. Each of the at least one chamber is configured to be a standard container or a chamber which has a same shape, a same size and a same structure as a standard container such that the ray inspection system is adapted to be stacked in the container yard.
    Type: Application
    Filed: September 19, 2017
    Publication date: March 22, 2018
    Inventors: Chunguang ZONG, Ying LI, Hejun ZHOU, Jianmin LI, Yuanjing LI, Yulan LI, Li ZHANG, Zhiqiang CHEN
  • Patent number: 9000392
    Abstract: The present invention provides a cellular thermal neutron detector, comprising: a cellular structure comprised of one or more hollow regular hexagonal prism-shaped cellular units, wherein a neutron absorbing material is coated on an inner side of a pipe wall of each of the cellular units. Since the neutron-sensitive cellular structure is employed, the present invention can perform thermal neutron detection without using the scarce nuclide 3He, and effectively reduce the manufacture costs of the thermal neutron detector. Further, the present invention has characteristics such as a reduced or eliminated neutron detecting dead zone.
    Type: Grant
    Filed: December 24, 2012
    Date of Patent: April 7, 2015
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Yigang Yang, Hejun Zhou, Yi Liu, Qinjian Zhang, Yongqiang Wang
  • Publication number: 20130168565
    Abstract: The present invention provides a cellular thermal neutron detector, comprising: a cellular structure comprised of one or more hollow regular hexagonal prism-shaped cellular units, wherein a neutron absorbing material is coated on an inner side of a pipe wall of each of the cellular units. Since the neutron-sensitive cellular structure is employed, the present invention can perform thermal neutron detection without using the scarce nuclide 3He, and effectively reduce the manufacture costs of the thermal neutron detector. Further, the present invention has characteristics such as a reduced or eliminated neutron detecting dead zone.
    Type: Application
    Filed: December 24, 2012
    Publication date: July 4, 2013
    Applicants: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITED
    Inventors: Yigang Yang, Hejun Zhou, Yi Liu, Qinjian Zhang, Yongqiang Wang