Patents by Inventor Shangmin Sun

Shangmin Sun 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: 10129971
    Abstract: The present invention provides a standing wave electron linear accelerator comprising a modulator and a magnetron for producing radio frequency microwaves; a plurality of accelerating tubes for accelerating electrons; a microwave transmission system for feeding the microwaves into the plurality of accelerating tubes; a plurality of electron guns for emitting electron beams into the plurality of accelerating tubes; a plurality of targets impinged by the electrons from a plurality of accelerating tubes to form continuous spectrums of X-rays; a plurality of shielding devices for shielding the continuous spectrums of X-rays generated by the targets; and a microwave distributor disposed adjacent to the end of the microwave transmission system, wherein the microwave distributor has a microwave inlet and a plurality of microwave outlets for distributing the microwaves in the microwave transmission system into the accelerating tubes.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: November 13, 2018
    Assignee: Nuctech Company Limited
    Inventors: Shangmin Sun, Zhanfeng Qin, Sheng Yao, Weifeng Yu, Liwei Song, Chunguang Zong, Jinning Liang
  • Publication number: 20180322358
    Abstract: A vehicle type recognition method based on a laser scanner is provided, the method comprising steps of: detecting that a vehicle to be checked has entered into a recognition area; causing a laser scanner to move relative to the vehicle to be checked; scanning the vehicle to be checked using the laser scanner on a basis of columns, and storing and splicing data of each column obtained by scanning to form a three-dimensional image of the vehicle to be checked, wherein a lateral width value is specified for each single column of data; specifying a height difference threshold; and determining a height difference between the height at the lowest position of the vehicle to be checked in data of column N and the height at the lowest position of the vehicle to be checked in data of specified number of columns preceding and/or succeeding to the column N.
    Type: Application
    Filed: June 28, 2018
    Publication date: November 8, 2018
    Applicant: NUCTECH COMPANY LIMITED
    Inventors: Shangmin SUN, Yanwei Xu, Qiang Li, Weifeng Yu, Yu Hu
  • Patent number: 10082596
    Abstract: The present invention discloses a vehicle inspection system, comprising: an inspection passage; a vehicle dragging system arranged in the inspection passage, wherein the vehicle dragging system comprises a first dragging means and a second dragging means, which are sequentially arranged along a vehicle dragging direction, and in the vehicle dragging direction, the first dragging means is arranged at the upstream of the second dragging means, and a separating section is arranged between the first dragging means and the second dragging means, so that the first dragging means and the second dragging means are separated by a preset distance in the vehicle dragging direction; and a radiographic inspection system, wherein at least a part of paths of the beams of the radiographic inspection system passes through the separating section between the first dragging means and the second dragging means.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: September 25, 2018
    Assignees: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITED
    Inventors: Yu Hu, Jianmin Li, Hui Meng, Yuan Ma, Weifeng Yu, Jinning Liang, Shangmin Sun
  • Patent number: 10082597
    Abstract: A mobile inspection system comprises: a stand; a ray source mounted to the stand and configured to generate a ray; a substantially inverted L-shaped detector beam comprising a horizontal detector beam portion and an upright detector beam portion connected to one end of the horizontal detector beam portion; a plurality of detectors configured to receive the ray emitted from the ray source, the plurality of detectors being disposed to at least one of the horizontal detector beam portion and the upright detector beam portion; and a drive device disposed to the stand, connected with the other end of the horizontal detector beam portion, and configured to drive the detector beam to rotate around an upright axis, wherein the ray source and the detector beam rotate synchronously.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: September 25, 2018
    Assignee: Nuctech Company Limited
    Inventors: Quanwei Song, Kejin Gao, Xuping Fan, Liwei Song, Jianmin Li, Shangmin Sun, Yulan Li, Chunguang Zong, Jinning Liang, Sheng Tang
  • Patent number: 10074026
    Abstract: A vehicle type recognition method based on a laser scanner is provided, the method includes detecting that a vehicle to be checked has entered into a recognition area; causing a laser scanner to move relative to the vehicle to be checked; scanning the vehicle to be checked using the laser scanner on a basis of columns, and storing and splicing data of each column obtained by scanning to form a three-dimensional image of the vehicle to be checked, wherein a lateral width value is specified for each single column of data; specifying a height difference threshold; and determining a height difference between the height at the lowest position of the vehicle to be checked in data of column N and the height at the lowest position of the vehicle to be checked in data of specified number of columns preceding and/or succeeding to the column N.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: September 11, 2018
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Shangmin Sun, Yanwei Xu, Qiang Li, Weifeng Yu, Yu Hu
  • Publication number: 20180187443
    Abstract: A vehicle inspection system is described. The vehicle inspection system comprises: an inspection device, for performing an inspection on a vehicle to be inspected; a carrier platform, for carrying the vehicle to be inspected; and an unmanned controlled travelling device for moving the carrier platform to pass through a scanning area of the inspection device, so as to perform the inspection on the vehicle to be inspected. In the present disclosure, the vehicle to be inspected is carried by the carrier platform, and the unmanned controlled travelling device is used to move the carrier platform to pass through the scanning area of the inspection device, so that the vehicle to be inspected can be subject to inspection smoothly. There is no driver required to drive through the scanning area in this process, thus avoiding exposure of a driver to a threat of radiation.
    Type: Application
    Filed: December 29, 2017
    Publication date: July 5, 2018
    Inventors: Zhiqiang CHEN, Yuanjing LI, Jianmin LI, Shangmin SUN, Yu HU, Yuan MA, Qiangqiang WANG
  • Publication number: 20180182126
    Abstract: The present disclosure discloses a method and system for identifying a part of a vehicle and a vehicle inspection system. The method includes: acquiring a vehicle body image sequence of a vehicle to be identified; reconstructing the vehicle body by using a first vehicle body reconstruction model generated through a deep learning algorithm and on the basis of the vehicle body image sequence, so as to acquire a vehicle body reconstruction image of the vehicle to be identified; and identifying a boundary identifier of the vehicle to be identified on the basis of the vehicle body reconstruction image of the vehicle to be identified.
    Type: Application
    Filed: December 22, 2017
    Publication date: June 28, 2018
    Inventors: Yanwei XU, Zheng HU, Yongming WANG, Chuan GAO, Weifeng YU, Qiang LI, Yuan MA, Jianping GU, Yu HU, Shangmin SUN
  • Patent number: 9989668
    Abstract: The present invention provides an inspection system for a container. It comprises: a radiation source, configured to provide X-rays for scanning the container; a detector, configured to receive the X-rays emitted from the radiation source; a body of the inspection system, on which the radiation source and the detector are provided; wherein a size of the body of the inspection system is set to facilitate the inspection of the container. The inspection system of the present invention can inspect in batches the container in the wharf or goods yard.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: June 5, 2018
    Assignee: Nuctech Company Limited
    Inventors: Shangmin Sun, Weifeng Yu, Liwei Song
  • Publication number: 20180149769
    Abstract: A mobile scanning inspection system, comprising a vehicle body and an inspection arm including a cross arm and a vertical arm, wherein a first inspection device and a second inspection device are provided on the cross arm; the first inspection device is on the side close to the vehicle body and it emits a first laser inspection plane parallel to the side plane of the vehicle body, and the length of the longest portion of the first laser inspection plane is longer than the length of the vehicle body; the second inspection device is provided on the side close to the vertical arm and it emits a second laser inspection plane parallel to the side plane of the vehicle body and the second laser inspection plane is centered on the vertical arm, and extends a first preset distance and a second preset distance forward and backward.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 31, 2018
    Inventors: Tao JIANG, Yanwei XU, Shangmin SUN, Yu HU, Weifeng YU, Xuejing YANG, Youai YU, Ke LI, Defang MENG
  • Publication number: 20180149767
    Abstract: The present invention relates to an inspection system. The inspection system comprises a base, a boom lifting mechanism provided on the base, and a boom mounting a detector. The boom lifting mechanism includes at least two support arms arranged sequentially. The at least two support arms include a base arm and a distal arm. The base arm is connected to the base, the boom is mounted on the distal arm, the inspection system has a scanning state and a transporting state, and two adjacent support arms of the at least two support arms are rotatably connected so that the height of the boom in the scanning state is different from that in the transporting state. The boom lifting mechanism of the inspection system of the present invention lifts the boom by rotatably connecting two adjacent support arms, and presents less required driving force compared to the lifting of the boom directly in a vertical direction in the prior art.
    Type: Application
    Filed: October 9, 2017
    Publication date: May 31, 2018
    Inventors: Xuping Fan, Quanwei Song, Zhiqiang Chen, Shangmin Sun
  • Patent number: 9910184
    Abstract: The present disclosure discloses an alignment system and an alignment method for a container or vehicle inspection system, and an inspection system. The inspection system comprises comprising an ray source, a collimator, a detector arm and a detector module mounted on a detector arm, the ray source, the collimator and the detector module are arranged to form an inspection passage, a ray beam emitted from the ray source passes through collimator and irradiates onto an inspected object, and an attenuated ray beam is collected by the detector module so as to complete inspection. The alignment system comprises a measuring module arranged to receive the ray beam emitted from the collimator and to measure the ray beam so as to determine positions and orientations of the ray source and the collimator. With the alignment method, alignment between a center point of the ray source, a central line of a detector tip and a central line of the collimator may be more accurately measured.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: March 6, 2018
    Assignees: Tsinghua University, Nuctech Company Limited
    Inventors: Jianmin Li, Yulan Li, Yuanjing Li, Hao Yu, Chunguang Zong, Jingyu Gu, Weifeng Yu, Quanwei Song, Weizhen Wang, Shangmin Sun, Yinong Liu, Junli Li, Chuanxiang Tang
  • Publication number: 20180059282
    Abstract: The present application relates to a container inspection system, comprising a radiation source (31), a radiation detection apparatus and a quay crane for hoisting a container onto an automated guided vehicle, said radiation source (31) and said radiation detection apparatus being provided on said quay crane, for performing a scanning inspection on said container loaded on said vehicle. The present application, which does not need a special allocation of approach of the radiation source and the radiation detection apparatus, conveniently effectuates scanning inspection of a container, and improving the inspection efficiency.
    Type: Application
    Filed: August 31, 2017
    Publication date: March 1, 2018
    Inventors: Zhiqiang Chen, Yuanjing Li, Shangmin Sun, Yu Hu, Yuan Ma, Qiangqiang Wang, Long Du, Wei Li
  • Publication number: 20180059036
    Abstract: This invention relates to a movable divided inspection system and method, wherein the scanning inspection system comprises a first radiation source, a first detection means, a first automated guided vehicle and a second automated guided vehicle. The first radiation source is mounted on the first automated guided vehicle. The first detection means is mounted on the second automated guided vehicle. The first automated guided vehicle and the second automated guided vehicle are able to drive the first radiation source and the first detection means to a preset scan inspection position, so as to form a scanning passage for passage of an article to be scanned between the first and second automated guided vehicle, such that scanning inspection of said article to be scanned is realized by relative movement of said article to be scanned with reference to said first automated guided vehicle and said second automated guided vehicle.
    Type: Application
    Filed: August 31, 2017
    Publication date: March 1, 2018
    Inventors: Zhiqiang Chen, Yuanjing Li, Shangmin Sun, Yu Hu, Yuan Ma, Qiangqiang Wang, Long Du, Wei Li
  • Publication number: 20180059068
    Abstract: This invention relates to a movable article inspection system and inspection method, wherein the inspection system comprises: a first automated guided vehicle, a radiation source and a detection mechanism; said radiation source and said detection mechanism are both mounted on said first automated guided vehicle, said first automated guided vehicle is able to move to a preset scanning inspection position, such that scanning inspection of said article to be scanned is effectuated by means of relative movement between an article to be scanned and the first automated guided vehicle. Such movable inspection system based on an automated guided vehicle is capable of making full use of an existing automated guided vehicle and its control system to make a movement path of the inspection system more flexible, and capable of effectuating centralized control and management of the inspection system, so that it can improve inspection efficiency, and save labor cost.
    Type: Application
    Filed: August 31, 2017
    Publication date: March 1, 2018
    Inventors: Zhiqiang Chen, Yuanjing Li, Shangmin Sun, Yu Hu, Xuejing Yang, Qiangqiang Wang, Long Du, Wei Li
  • Patent number: 9857317
    Abstract: The X-ray fluoroscopic imaging system of the present invention comprises: an inspection passage; an electron accelerator; a shielding collimator apparatus comprising a shielding structure, and a first collimator for extracting a low energy planar sector X-ray beam and a second collimator for extracting a high energy planar sector X-ray beam which are disposed within the shielding structure; a low energy detector array for receiving the X-ray beam from the first collimator; and a high energy detector array for receiving the X-ray beam from the second collimator. The first collimator, the low energy detector array and the target point bombarded by the electron beam are located in a first plane; and the second collimator, the high energy detector array and the target point bombarded by the electron beam are located in a second plane.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: January 2, 2018
    Assignees: NUCTECH COMPANY LIMITED, TSINGHUA UNIVERSITY
    Inventors: Huaping Tang, Zhiqiang Chen, Chuanxiang Tang, Huaibi Chen, Yuanjing Li, Ziran Zhao, Yaohong Liu, Shangmin Sun, Xinshui Yan, Zhanfeng Qin
  • Publication number: 20170094762
    Abstract: The present invention discloses a dual-energy ray scanning system, scanning method and inspecting system and relates to the radiation scanning, imaging and detecting field. The dual-energy ray scanning system comprises a ray source for alternately emitting a high energy ray and a low energy ray; a filter comprising a low energy filtering element and a low energy transmitting element; and a control device for controlling said ray source and said filter to make said low energy filtering element of said filter be aligned with a beam exit direction of said ray source when said ray source emits a high energy ray so as to filter low energy portion of said high energy ray out and transmit high energy portion of said high energy ray out, and for controlling said ray source and said filter to make said low energy transmitting element of said filter be aligned with said beam exit direction of said ray source when said ray source emits the low energy ray so as to transmit said low energy ray out.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 30, 2017
    Applicant: Nuctech Company Limited
    Inventors: Yu Hu, Shangmin Sun, Juan Zheng, Bicheng Liu
  • Publication number: 20160187526
    Abstract: A vehicle-carried quick inspection system includes an X-ray source, a detector, the X-ray source and the detector being arranged to form an inspection passage, a controller configured to control the X-ray source so that X-ray irradiation dose is extremely low when the driver's cab of the inspected vehicle passes through an X-ray beam, and control the X-ray source so that the irradiation dose of the X-ray source becomes a working dose when the other subsequent portions of the inspected vehicle pass through the X-ray beam. A mobile and fully automated security inspection system is obtained and quick inspection can be achieved, while protecting the driver from being damaged from X-ray irradiation.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 30, 2016
    Inventors: Kejun Kang, Xuejing Yang, Shangmin Sun, Yu Hu, Jingyu Gu, Weifeng Yu, Ke Li, Lei Liu, Youai Yu
  • Publication number: 20160180186
    Abstract: A vehicle type recognition method based on a laser scanner is provided, the method includes detecting that a vehicle to be checked has entered into a recognition area; causing a laser scanner to move relative to the vehicle to be checked; scanning the vehicle to be checked using the laser scanner on a basis of columns, and storing and splicing data of each column obtained by scanning to form a three-dimensional image of the vehicle to be checked, wherein a lateral width value is specified for each single column of data; specifying a height difference threshold; and determining a height difference between the height at the lowest position of the vehicle to be checked in data of column N and the height at the lowest position of the vehicle to be checked in data of specified number of columns preceding and/or succeeding to the column N.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventors: Shangmin Sun, Yanwei Xu, Qiang Li, Weifeng Yu, Yu Hu
  • Publication number: 20160170074
    Abstract: The present disclosure discloses an alignment system and an alignment method for a container or vehicle inspection system, and an inspection system. The inspection system comprises comprising an ray source, a collimator, a detector arm and a detector module mounted on a detector arm, the ray source, the collimator and the detector module are arranged to form an inspection passage, a ray beam emitted from the ray source passes through collimator and irradiates onto an inspected object, and an attenuated ray beam is collected by the detector module so as to complete inspection. The alignment system comprises a measuring module arranged to receive the ray beam emitted from the collimator and to measure the ray beam so as to determine positions and orientations of the ray source and the collimator. With the alignment method, alignment between a center point of the ray source, a central line of a detector tip and a central line of the collimator may be more accurately measured.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 16, 2016
    Inventors: Jianmin LI, Yulan LI, Yuanjing LI, Hao YU, Chunguang ZONG, Jingyu GU, Weifeng YU, Quanwei SONG, Weizhen WANG, Shangmin SUN, Yinong LIU, Junli LI, Chuanxiang TANG
  • Publication number: 20160135278
    Abstract: The present invention provides a standing wave electron linear accelerator comprising a modulator and a magnetron for producing radio frequency microwaves; a plurality of accelerating tubes for accelerating electrons; a microwave transmission system for feeding the microwaves into the plurality of accelerating tubes; a plurality of electron guns for emitting electron beams into the plurality of accelerating tubes; a plurality of targets impinged by the electrons from a plurality of accelerating tubes to form continuous spectrums of X-rays; a plurality of shielding devices for shielding the continuous spectrums of X-rays generated by the targets; and a microwave distributor disposed adjacent to the end of the microwave transmission system, wherein the microwave distributor has a microwave inlet and a plurality of microwave outlets for distributing the microwaves in the microwave transmission system into the accelerating tubes.
    Type: Application
    Filed: November 19, 2013
    Publication date: May 12, 2016
    Inventors: Shangmin SUN, Zhanfeng QIN, Sheng YAO, Weifeng YU, Liwei SONG, Chunguang ZONG, Jinning LIANG