Patents Assigned to Nuctech Company Limited
-
Patent number: 11925183Abstract: 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.Type: GrantFiled: April 28, 2022Date of Patent: March 12, 2024Assignees: Tsinghua University, Nuctech Company LimitedInventors: Zhiqiang Chen, Li Zhang, Qingping Huang, Yong Zhou, Hui Ding, Chao Ji
-
Patent number: 11926477Abstract: The embodiments of the present disclosure disclose a self-service express cabinet and a package delivery method. The self-service express cabinet may include: a cabinet body including a sending window and a chamber, wherein the sending window may be connected with the chamber, and the sending window may be disposed on a surface of the cabinet body; a human-machine interaction device disposed on the cabinet body for information interaction with a user; an inspection device disposed in the chamber and capable of performing security inspection on a package dropped into the chamber for delivery, wherein the inspection device may have a receiving end and an output end, and at least part of the receiving end may be located within a scope of a forward projection of the sending window; and at least one storage component disposed in the chamber and corresponding to the output end.Type: GrantFiled: May 6, 2020Date of Patent: March 12, 2024Assignee: Nuctech Company LimitedInventors: Xin Xue, Zhongrong Yang, Qiwang Gao, Bo Tang
-
Patent number: 11906447Abstract: A multi-channel static CT device is provided, and the multi-channel static CT device includes: a scanning channel including a plurality of scanning sub-channels; a distributed X-ray source including a plurality of ray emission points arranged around the scanning channel; and a detector module including a plurality of detectors arranged around the scanning channel, wherein the plurality of detectors are arranged corresponding to the plurality of ray emission points.Type: GrantFiled: September 10, 2021Date of Patent: February 20, 2024Assignees: NUCTECH COMPANY LIMITED, Tsinghua UniversityInventors: Zhiqiang Chen, Li Zhang, Xiaofei Xu, Le Shen, Ming Chang, Hu Tang, Xin Jin, Yunda Sun
-
Patent number: 11866262Abstract: 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.Type: GrantFiled: October 27, 2021Date of Patent: January 9, 2024Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Zhiqiang Chen, Li Zhang, Jinning Liang, Qingping Huang, Mingzhi Hong, Yanhua Lu, Bo Li, Yue Li, Majie Weng
-
Patent number: 11861963Abstract: 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.Type: GrantFiled: September 11, 2020Date of Patent: January 2, 2024Assignees: NUCTECH COMPANY LIMITED, Tsinghua UniversityInventors: Li Zhang, Gang Peng, Qingping Huang, Liang Li, Fan Yang, Jiabao Chen, Kun Cheng, Zhifeng He
-
Patent number: 11798188Abstract: The present disclosure provides a method of remotely measuring a size of a pupil, including: acquiring an image of a to-be-measured person by using a detection device; acquiring an image of a pupil of the to-be-measured person from the image of the to-be-measured person; measuring a distance between the to-be-measured person and the detection device by using the detection device; and calculating an actual size of the pupil of the to-be-measured person based on the measured distance and the image of the pupil of the to-be-measured person. The present disclosure further provides an apparatus for remotely measuring a size of a pupil, an electronic device, and a non-transitory computer-readable medium.Type: GrantFiled: February 24, 2021Date of Patent: October 24, 2023Assignees: Tsinghua University, Nuctech Company LimitedInventors: Zhiqiang Chen, Yuanjing Li, Jianmin Li, Xianghao Wu, Bin Liu, Guocheng An
-
Patent number: 11768163Abstract: The present application discloses a CT system and a detection apparatus for the CT system. The detection apparatus includes: a high-energy detector assembly including a plurality of rows of high-energy detectors arranged along a predetermined trajectory; a low-energy detector assembly including a plurality of rows of low-energy detectors arranged at intervals along the predetermined trajectory, the low-energy detector assembly and the high-energy detector assembly being disposed in a stack; a number of rows of the low-energy detectors is smaller than a number or rows of the high-energy detectors; and each row of the low-energy detectors covers a row of high-energy detectors.Type: GrantFiled: September 10, 2019Date of Patent: September 26, 2023Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Li Zhang, Zhiqiang Chen, Qingping Huang, Yunda Sun, Xin Jin, Le Shen, Liang Li, Tiao Zhao
-
Patent number: 11733422Abstract: The present disclosure provides a portable terahertz security inspection apparatus, including: a carrying body; a terahertz emitting device arranged on the carrying body, wherein the terahertz emitting device includes a terahertz signal source and an emitting unit connected to the terahertz signal source and configured to emit a terahertz wave; a terahertz detector arranged on the carrying body and configured to receive the terahertz wave reflected from an inspected object; a data acquisition and processing system arranged on the carrying body and connected to the terahertz detector, wherein the data acquisition and processing system is configured to receive a scan data for the inspected object from the terahertz detector and generate a terahertz image; and a display device connected to the data acquisition and processing system and configured to receive and display the terahertz image from the data acquisition and processing system.Type: GrantFiled: October 9, 2019Date of Patent: August 22, 2023Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Ziran Zhao, Yingxin Wang, Meng Chen, Xuming Ma
-
Patent number: 11737202Abstract: Embodiments of the disclosed technology provide an apparatus for controlling a standing wave linear accelerator. An example standing wave linear accelerator includes an accelerating tube, a motor, and a microwave power source connected between the accelerating tube and the motor. An example apparatus includes a main processor configured to receive an envelope signal of a reflected wave signal output by the accelerating tube, determine whether an amplitude of the envelope signal is greater than an envelope threshold, and if it is determined that the amplitude of the envelope signal is less than the envelope threshold, determine whether to change a rotation direction of the motor by comparing the amplitude of the envelope signal with an envelope reference signal stored in a memory. The memory is connected to the main processor and is configured to store the envelope threshold and the envelope reference signal.Type: GrantFiled: December 23, 2020Date of Patent: August 22, 2023Assignee: NUCTECH COMPANY LIMITEDInventors: Yaohong Liu, Jinsheng Liu, Wei Jia, Wei Yin, Feng Gao, Xiying Liu, Haokun Wang
-
Patent number: 11717589Abstract: A tray disinfection devices for a security inspection system can include a frame, a disinfection channel on the frame, and a conveyor on the frame. An ultraviolet disinfection lamp is arranged in the disinfection channel. The conveyor on the frame is configured to convey a tray to pass through the disinfection channel so as to disinfect the tray through an irradiation of the ultraviolet disinfection lamp.Type: GrantFiled: December 29, 2020Date of Patent: August 8, 2023Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Li Zhang, Zhiqiang Chen, Qingping Huang, Mingzhi Hong, Yue Li, Bo Li, Minghua Qiu, Yanhua Lu
-
Patent number: 11699223Abstract: A method, a device and a security system for image data processing based on VR or AR are disclosed. In one aspect, an example image data processing method includes reconstructing, based on three-dimensional (3D) scanned data of a containing apparatus in which objects are contained, a 3D image of the containing apparatus and the objects contained in the containing apparatus. The reconstructed 3D image is stereoscopically displayed. Manipulation information is determined for at least one of the objects in the containing apparatus based on positioning information and action information of a user. At least a 3D image of the at least one object is reconstructed based on the determined manipulation information. The at least one reconstructed object is presented on the displayed 3D image.Type: GrantFiled: December 29, 2017Date of Patent: July 11, 2023Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Ziran Zhao, Jianping Gu, Bicheng Liu, Qi Wang, Xi Yi
-
Publication number: 20230204798Abstract: The present disclosure provides a gamma camera imaging method and a gamma camera imaging device. The method includes: selecting, from energy spectrums captured by a gamma camera on one or more radioactive materials, one or more energy ranges of each radioactive material among the one or more radioactive materials as one or more monitored energy regions of the radioactive material; performing image reconstruction on the monitored energy regions of each radioactive material among the one or more radioactive materials; performing normalization on images obtained through the image reconstruction; and performing superimposing on the normalized images to form a composite image.Type: ApplicationFiled: November 15, 2022Publication date: June 29, 2023Applicant: Nuctech Company LimitedInventors: Gaowa TUYA, Chunxuan HU, Kun ZHAO, Zengxue JIN, Zhidan MA
-
Patent number: 11662457Abstract: A terahertz security inspection robot is provided, including: a housing including a main housing and a head housing rotatably connected to the main housing; a terahertz wave imaging mechanism including a mirror assembly arranged in the head housing and a detector array arranged in the main housing; and a rotating mechanism configured to cause the head housing and the mirror assembly located in the head housing to rotate with respect to the main housing, so that the mirror assembly of the terahertz wave imaging mechanism is oriented in different directions to respectively perform terahertz scanning and imaging on objects to be inspected in different inspection regions in a security inspection scene.Type: GrantFiled: June 22, 2021Date of Patent: May 30, 2023Assignees: Tsinghua University, NUCTECH COMPANY LIMITEDInventors: Zhiqiang Chen, Ziran Zhao, Yan You, Yuanjing Li, Shixin Zhang, Huan Xie, Xuming Ma, Rui Fan, Yinglei Wang
-
Publication number: 20230144433Abstract: Provided is a method of verifying an authenticity of declaration information. The method includes: acquiring a machine-detected radiation image obtained by scanning a container loaded with an article; acquiring a declaration information for declaring the article in the container; performing an identification on an image information of the article in the machine-detected radiation image to obtain an image feature corresponding to the machine-detected radiation image; performing an identification on a text information of the article in the declaration information to obtain a text feature corresponding to the declaration information; screening a declaration category of the article in the container by taking the image feature as an input information and the text feature as an external introduction feature; and determining that the declaration information is in doubt when a declaration category of at least one article in the container does not belong to a declaration category in the declaration information.Type: ApplicationFiled: November 4, 2022Publication date: May 11, 2023Applicants: NUCTECH COMPANY LIMITED, Tsinghua UniversityInventors: Li ZHANG, Yuxiang XING, Hu TANG, Yunda SUN, Gang FU, Qiang LI, Yan ZHANG, Wubin WU
-
Patent number: 11631152Abstract: A security inspection system and a method of configuring a security inspection device are provided. In an embodiment, the security inspection system may include: an identity information entry device configured to enter an identification of an inspected person; a parameter determination device configured to determine a parameter for performing a security inspection on the inspected person based on a security factor of the inspected person determined according to user data corresponding to the identification of the inspected person; and a security inspection device configured to perform the security inspection on the inspected person based on the determined parameter. According to embodiments, it is possible to accurately predict the user's behavior and evaluate the risk or potential danger from the user by analyzing and mining the user's comprehensive data, and thus to provide a more accurate security inspection solution.Type: GrantFiled: July 31, 2017Date of Patent: April 18, 2023Assignee: Nuctech Company LimitedInventors: Zhiqiang Chen, Ziran Zhao, Wanlong Wu, Yingkang Jin, Xianli Ding, Jiao Long, Zongjun Shen, Zheng Li
-
Patent number: 11619599Abstract: The present disclosure provides a substance identification device and a substance identification method. The substance identification device comprises: a classifier establishing unit configured to establish a classifier based on scattering density values reconstructed for a plurality of known sample materials, wherein the classifier comprises a plurality of feature regions corresponding to a plurality of characteristic parameters for the plurality of known sample materials, respectively; and an identification unit for a material to be tested, configured to match the characteristic parameter of the material to be tested with the classifier, and to identify a type of the material to be tested by obtaining a feature region corresponding to the characteristic parameter of the material to be tested.Type: GrantFiled: July 22, 2020Date of Patent: April 4, 2023Assignees: Tsinghua University, Nuctech Company LimitedInventors: Zhi Zeng, Xingyu Pan, Xuewu Wang, Junli Li, Ming Zeng, Jianmin Li, Ziran Zhao, Jianping Cheng, Hao Ma, Hui Zhang, Hao Yu, Bicheng Liu
-
Patent number: 11613913Abstract: The present disclosure provides an intelligent lock.Type: GrantFiled: January 13, 2020Date of Patent: March 28, 2023Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Zhiqiang Chen, Yuanjing Li, Xianghao Wu, Shiguo Liu, Dawei Shi
-
Patent number: 11493447Abstract: The disclosure provides a method for removing background from a spectrogram, including: finding out peak information of a raw spectrogram, the peak information including a peak position, a starting point, an ending point, and a peak width w of a peak; processing, within each peak area defined by the starting point and the ending point of each peak of the raw spectrogram, each peak of the raw spectrogram by using a SNIP method so as to obtain background data within each peak area; replacing, within each peak area, data of the raw spectrogram with the background data obtained through processing by using the SNIP method, so as to form a background spectrogram in a fitting way; smoothing the formed background spectrogram; and subtracting the smoothed background spectrogram from the raw spectrogram so as to obtain a spectrogram with removed background.Type: GrantFiled: November 17, 2017Date of Patent: November 8, 2022Assignee: Nuctech Company LimitedInventors: Wei Gou, Hongqiu Wang, Huacheng Feng
-
Patent number: 11479369Abstract: A baggage cart is disclosed. The baggage cart is used for security inspection in an airport, comprising: a cart body, comprising at least one compartment having a door; and a locking device, coupled to the compartment and configured to lock the compartment in response to receiving an indication signal.Type: GrantFiled: January 4, 2019Date of Patent: October 25, 2022Assignee: Nuctech Company LimitedInventors: Li Zhang, Zhiqiang Chen, Qingping Huang, Wenyuan Bi, Xin Jin, Ming Chang, Mingzhi Hong, Yancai Wang
-
Patent number: 11476102Abstract: Embodiments of the present disclosure provide a real-time calibration device, a real-time calibration method and a detection apparatus. The real-time calibration device is in fluid communication with a sample injection pipeline of the apparatus to be calibrated. The real-time calibration device is configured to release a trace amount of calibration agent molecules during a sample injection of the apparatus to be calibrated, so that the trace amount of calibration agent molecules and a sample entering the apparatus to be calibrated are mixed and together enter the apparatus to be calibrated, and information of the sample and the calibration agent is detected by the apparatus to be calibrated, thereby performing a calibration.Type: GrantFiled: August 27, 2020Date of Patent: October 18, 2022Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Qingjun Zhang, Zhiqiang Chen, Yuanjing Li, Jianmin Li, Yinong Liu, Yaohong Liu, Guangqin Li, Weiping Zhu, Ge Li, Qiufeng Ma, Biao Cao