Nuctech Company Limited

Tsinghua University

Other

Nutech Company Limited

Nuctech (beijing) Company Limited

Chunguang Zong

Zhiqiang Chen

Li Ni Zhang

Wei Li

Yuanjing Li

Jianmin Li

Shangmin Sun

Yulan Li

Yu Hu

Quanwei Song

Weifeng Yu

Hao Yu

Ying Li

Dongyu Wang

Bicheng Liu

Yanwei Xu

Ziran Zhao

Yinong Liu

Qingjun Zhang

Yuan He

Xiang Zou

Yuan Ma

Jian Li

Liang Li

Yaohong Liu

Lei Liu

Kejun Kang

Ke Zhao Li

Juan Zheng

Chuanxiang Tang

Feng Wang

Qingping Huang

Jianping Gu

Li Zhang

Huaping Tang

Junli Li

Yigang Yang

Ke Li

Wei Yin

Shuwei Li

Guangming Xu

Jianping Cheng

Weizhen Wang

Hejun Zhou

Junping Shi

Jinguo Cao

Kejin Gao

Haojie Chi

Jinning Liang

Xuping Fan

Yongming Wang

Liwei Song

Sheng Tang

Xiulin Ni

Zhanfeng Qin

Weibin Zhu

Hui Meng

Junxiao Wang

Jingyu Gu

Haoran Zhang

Qinjian Zhang

Qiangqiang Wang

Xuejing Yang

Ming Zeng

Tao Xue

Chuan Gao

Weiqiang Guan

Hui Gong

Yiwei Guo

Xiaolin Zhao

Hongqi Li

Sheng Yao

Yang Yao

Junjie Tu

Zhansen Ran

Bing Fu

Zheng Ji

Haitian Tan

Huaping Li

Yuangjing Li

Guina Qiao

Zhiyiang Chen

Qitian Miato

Juxuan Li

The present disclosure provides a radiation inspection device, which has a transportation state and a working state, and includes a container with an adjustable width, and the width of the container in the transportation state is smaller than that in the working state; a radiation inspection apparatus arranged in the container and including a radiation source and a detector, and in the transportation state, the length of the radiation inspection apparatus is arranged along the length direction of the container, and in the working state, the length of the radiation inspection apparatus is arranged along the width direction of the container to perform radiation scanning inspection on vehicles passing through the container along the length direction; a rotating apparatus arranged in the container and configured to rotate the radiation inspection apparatus when the radiation inspection device is switched between the transportation state and the working state.

Radiation inspection device

The present invention relates to a backscatter imaging device, a control method and an inspection system. The backscatter imaging device includes a ray source assembly configured to emit rays to a scanning area; a backscatter detector array including a plurality of backscattering detectors and configured to receive scattered photons when the rays are backscattered by an object within the scanning area; and a first collimator assembly including a plurality of first collimating channels corresponding to the plurality of backscatter detectors respectively, arranged on one side of the backscatter detector array adjacent to the scanning area, and configured to align the scattered photons when the rays are backscattered by the object, and the plurality of backscatter detectors receive scattered photons corresponding to a plurality of depths in the object respectively; and at least part of the plurality of first collimation channels have an adjustable collimation angle.

Backscatter imaging device, control method and inspection system

A mobile detection device and a detection method are provided. The mobile detection device includes: a bearing platform, being arranged fixedly, and including a bearing surface bearing an object to be detected; a movable gantry, located on a side of the bearing surface bearing the object to be detected and configured to be movable relative to the bearing platform; a movable bearing device, located on a side of the bearing surface away from the movable gantry and configured to be movable relative to the bearing platform; a first radiation source, arranged on one of the movable gantry and the movable bearing device, and a first detector array, arranged opposite to the radiation source and arranged on the other of the movable gantry and the movable bearing device, wherein the movable gantry and the movable bearing device are configured to be moved synchronously relative to the bearing platform.

Movable detection device and detection method

This disclosure provides a vehicle inspection method, apparatus, system, and computer-readable storage medium and relates to the field of security inspection technologies. The vehicle inspection method of the present disclosure includes: acquiring vehicle profile information of a vehicle through a first sensor that performs measurement in a direction perpendicular to a passage, and determining a feature point of the vehicle according to the vehicle profile information; determining a position of the vehicle in the passage through a second sensor that performs measurement in a direction along the passage, and determining a position of the feature point according to the position of the vehicle in the passage; and switching an operating mode of a ray source based on a preset strategy according to a position relation between the position of the feature point and the ray source.

Vehicle inspection method, apparatus and system, and computer-readable storage medium

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&#xb0; to enable the radiation inspection apparatus to travel in a direction perpendicular to the extension direction of the inspection channel.

Radiation inspection apparatus comprising a radiation inspection device and wheels and radiation inspection method

The present disclosure relates to a security scanning inspection system and method. The security scanning inspection system comprises a detector, a scanning device and a controller, wherein the detector is configured to detect a protective attribute of an object to be inspected; the scanning device is movably arranged and the scanning device is configured to emit a scanning ray during movement to perform a security scanning inspection on the object to be inspected, the scanning device comprising at least two working modes, wherein a dose of a scanning ray in each working mode is different from a dose of a scanning ray in any other working modes; and the controller configured to select a working mode of the scanning device according to the protective attribute of the object to be inspected detected by the detector.

Security scanning inspection system and method

The present disclosure provides a method and device for correcting a scanned image, and an image scanning system, and relates to the field of image scanning. The method includes obtaining a scanned image of a scanned object, detecting one or more reference objects from the scanned image, determining a deformation parameter of each reference object of the one or more reference objects based on preset a standard parameter of the each reference object, and correcting the scanned image based on the deformation parameters of the one or more reference objects.

Method and device for correcting a scanned image and image scanning system

The present disclosure relates to a security inspection device and a transfer method, and the security inspection device includes an arm frame, provided with detectors, and configured to form an inspection channel, a first compartment, internally provided with a radiation source and connected with the arm frame, a protection wall, connected with the first compartment or the arm frame, and configured to perform radiation protection for an object to be protected, and a tire, configured to enable the security inspection device to move relative to the ground, and the arm frame, the first compartment and the protection wall are set to be transported together in a connected state.

Security inspection device and transfer method therefor

An inspection device is provided, includes a first vehicle body, a radiation source, arranged in the first vehicle body, a second vehicle body, a protective wall, arranged on the second vehicle body, a boom, and detectors, arranged on the boom, and the boom is rotatably connected to the first vehicle body and the second vehicle body, forms an inspection passage together with the first vehicle body and the second vehicle body. The inspection device can improve the adaptability.

Security inspection device

The present disclosure provides a back scattering inspection system and a back scattering inspection method. The back scattering inspection system includes a frame and a back scattering inspection device. The rack includes a track arranged vertically or obliquely relative to the ground, and a space enclosed by the track forms an inspection channel; and the back scattering inspection device includes a back scattering ray emitting device and a back scattering detector, and the back scattering inspection device is movably disposed on the track for inspecting an inspected object passing through the inspection channel. The back scattering inspection system can perform back scattering inspection on a plurality of surfaces of the inspected object.

Back scattering inspection system and back scattering inspection method

The present disclosure provides a laser speed measuring method, control device and a laser velocimeter, and relates to the technical field of security inspection. The laser speed measuring method comprises the steps of: acquiring detection data within a predetermined detection angle range in a plurality of paralleled horizontal planes having different heights, from a plurality of laser rays detected towards a road extending direction in the horizontal plane; acquiring three-dimensional point cloud data according to the detection data; determining a position of a measured object in the road extending direction according to the three-dimensional point cloud data; and determining a speed of the measured object according to the position change of the measured object along the road extending direction at different timing.

Laser speed measuring method, control device and laser velocimeter

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.

CT inspection system and CT imaging method for a reciprocating swinging process of a radioactive source device and a detection device around an object at non-uniform speed to collect effective detection data

The present disclosure discloses a vehicle-mounted type back scattering inspection system. The vehicle-mounted type back scattering inspection system includes a carriage and a back scattering imaging device, the scanning range of the back scattering imaging device is variable. As the scanning range of the back scattering imaging device of the present disclosure is variably set, the inspection range of the back scattering imaging device can be expanded.

Vehicle-mounted type back scattering inspection system

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.

Scanned image correction apparatus, method and mobile scanning device

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.

CT inspection system and CT imaging method for obtaining detection data at a frequency that is N times a beam-emitting frequency of a radioactive source device

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Beijing, China

Chunguang Zong