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公开(公告)号：US20190204473A1
公开(公告)日：2019-07-04
申请号：US16330298
申请日：2016-12-21
Applicant: CHINA COMMUNICATION TECHNOLOGY CO., LTD. , SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION
Inventor： Hanjiang Chen , Tiansheng ZHANG , Chunchao QI , Shukai ZHAO
CPC classification number: G01V8/26 , G01V8/005 , G01V8/10 , G01V8/22 , G06K9/00362
Abstract: A terahertz security check method and system may include: a terahertz scanning device collecting a terahertz original image of a human body under test, and sending the same to a central server that identifies the terahertz original image, and determines whether the human body under test carries an article. If so, the image is marked with the position of the article and sent to a monitoring terminal. The monitoring terminal correspondingly marking the position of the article on a pre-stored human body cartoon image, and displaying the terahertz original images before and after marking to monitoring personnel, so that the monitoring personnel determine whether the central server has an identification error; and if so, the monitoring terminal changing a marker on the human body cartoon image, and sending the changed cartoon image to a client of security check personnel for displaying.
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12.发明申请公开(公告)号：US20190181810A1
公开(公告)日：2019-06-13
申请号：US16327483
申请日：2016-08-22
Applicant: CHINA COMMUNICATION MICROELECTRONICS TECHNOLOGY CO., LTD. , CHINA COMMUNICATION TECHNOLOGY CO., LTD.
Inventor： Shoukui ZHU , Qing DING , Guangsheng WU , Jianguo MA
Abstract: Embodiments of the present disclosure include a harmonic power amplifying circuit with high efficiency and high bandwidth and a radio-frequency power amplifier. The circuit comprises an input matching network (11), a transistor (M), and an output matching network (12); a gate of the transistor (M) connected to an output end of the input matching network (11), a drain thereof connected to an input end of the output matching network (12), and a source thereof being grounded; wherein the output matching network (12) enables a lower sideband of the harmonic power amplifying circuit to work in a continuous inverse F amplification mode and an upper sideband of the harmonic power amplifying circuit to work in a continuous F amplification mode; wherein the output matching network (12) and a parasitic network of the transistor (M) form a low pass filter. By transitioning from the continuous inverse F power amplifier working mode to the continuous F power amplifier working mode, the efficiency of a continuous harmonic control power amplifier is effectively improved to be higher than 60%, a relative bandwidth is improved to be higher than 80%, and the harmonic impedance is simple to match and easy to realize.
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公开(公告)号：US20180342064A1
公开(公告)日：2018-11-29
申请号：US16019562
申请日：2018-06-27
Inventor： Chunchao QI , Yanli LIU , Hanjiang CHEN , Guangsheng WU , Shukai ZHAO , Qing DING
CPC classification number: G06T7/13 , G01N22/00 , G01V5/0016 , G06K9/00771 , G06K2209/09 , G06T7/0002 , G06T7/001 , G06T7/11 , G06T7/12 , G06T7/174 , G06T2207/30196
Abstract: The present disclosure relates to a method and device for detecting concealed dangerous objects in microwave images. The method includes: simultaneously processes multiple adjacent microwave images, obtains edge images of a single image by using two methods for each image, obtains dangerous-object edges of the single image by edge fitting operation, obtains a rough dangerous-object contour by performing a registration operation and a second edge fitting operation on the dangerous-object edges of the multiple images, and performs a regional-binarization operation and a filtering on the rough dangerous-object contour to obtain a second dangerous-object area. The present disclosure has high detection accuracy and calculation efficiency.
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公开(公告)号：US20180341015A1
公开(公告)日：2018-11-29
申请号：US16052650
申请日：2018-08-02
Inventor： Chunchao QI , Xiongwei Huang , Hanjiang Chen , Guangsheng Wu , Shukai Zhao , Qing Ding
IPC: G01S13/88 , G01S13/89 , G05B19/414
Abstract: A servo rotary scanning system of three-dimensional holographic imaging may include a servomotor (20) having a first angle sensor (21), a second angle sensor (30), a control component (40), a servo driver (50) and a rotary frame (10), the servo rotary scanning system of three-dimensional holographic imaging is a full-closed loop servo control system, the second angle sensor (30) detects an actual rotating angle of the rotary frame (10) and feeds back a frame feedback signal to the control component (40), an instruction signal in the control component (40) is compared with the frame feedback signal to generate a following error, the first angle sensor (21) detects an output rotating angle of the servomotor (20) and feeds back a motor feedback signal to the servo driver (50), and the servo driver (50) controls the servomotor (20) to rotate according to the following error and the motor feedback signal.
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15.发明申请公开(公告)号：US20180321376A1
公开(公告)日：2018-11-08
申请号：US16032086
申请日：2018-07-11
Inventor： Chunchao QI , Rong WANG , Xiongwei HUANG , Chao SUN , Xiaoxiang HOU
CPC classification number: G01S13/89 , G01N29/069 , G01S7/412 , G01S13/04 , G01V13/00
Abstract: The present disclosure relates to a monitoring method, a monitoring system and a control device for a human-body security-inspection device. The monitoring method includes: collecting operation parameters of preset monitoring points in target circuit modules of the human-body security-inspection device; obtaining parameter ranges according to module identifiers of the target circuit modules and monitoring-point identifiers of the preset monitoring points, wherein the parameter ranges are associated with the module identifiers and the monitoring-point identifiers respectively; determining whether the operation parameters are in the parameter ranges respectively, and then determining location information of a fault point according to the module identifiers and the monitoring-point identifiers if any of the operation parameters is not in a corresponding parameter range. Therefore, the present disclosure can quickly locate the position of the fault point, thus it is convenient in the maintenance and test work, and improve the efficiency of the maintenance and test work.
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Patent Agency Ranking
公开(公告)号：US11550078B2
公开(公告)日：2023-01-10
申请号：US16340332
申请日：2017-08-04
Applicant: CHINA COMMUNICATION TECHNOLOGY CO., LTD. , SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION
Inventor： Chunchao Qi , Aixian Wang , Hanjiang Chen , Xiongwei Huang , Yanli Liu , Chengyan Jia , Shukai Zhao
Abstract: A GPU-based human body microwave echo simulation method includes: transmitting emulation input parameters from the memory of a CPU host into the display memory of a GPU device; configuring, at the CPU host, parallel computing network parameters to be run at the GPU device; initiating a kernel function for human body microwave echo simulation preset in the CPU host; computing the kernel function in parallel, in a plurality of processing kernels of the GPU device, in a multi-threaded manner, according to the parallel computing network parameters, to obtain simulation echoes of human body microwaves; transmitting the obtained simulation echoes of human body microwaves from the GPU device back to the CPU host. The method makes full use of the characteristic that a GPU can perform parallel computing to accelerate the echo simulation process, greatly improving the real-time performance of echo simulation of a human body microwave scanning and imaging system.
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公开(公告)号：US11313963B2
公开(公告)日：2022-04-26
申请号：US16066629
申请日：2016-01-27
Inventor： Chunchao Qi , Shukai Zhao , Chengyan Jia , Guangsheng Wu , Qing Ding , Juncheng Liu , Beibei Liu , Yandong Zhang , Yanli Liu
Abstract: This invention provides millimeter wave holographic 3D imaging detection system, which comprises: a transmitting antenna configured to transmit a millimeter wave transmitting signal to an object to be detected; a receiving antenna configured to receive an echo signal from the object to be detected; a millimeter wave transceiving module configured to generate the millimeter wave transmitting signal transmitted to the object to be detected and receive and process the echo signal from the receiving antenna; a scanning device configured to support the millimeter wave transceiving module, the transmitting antenna and the receiving antenna, and move the millimeter transceiving module, the transmitting antenna and the receiving antenna along a preset track, so as to scan the object to be detected with millimeter waves; a data gathering and processing module configured to gather and process the echo signal output from the millimeter wave transceiving module to generate a 3D image of the object to be detected; and an image display unit configured to display the 3D image generated by the data gathering and processing module. Besides, this invention also provides a method of millimeter wave holographic 3D imaging detection on an object to be detected using the above system thereof. The technical solution of this invention has the advantages of simple structure, high resolution, short imaging time, and larger field of view.
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公开(公告)号：US11125906B2
公开(公告)日：2021-09-21
申请号：US16326305
申请日：2016-12-15
Applicant: CHINA COMMUNICATION TECHNOLOGY CO., LTD. , SHENZHEN VICTOOTH TERAHERTZ TECHNOLOGY CO., LTD.
Inventor： Shukai Zhao , Chunchao Qi , Zhihui Feng , Hanjiang Chen
Abstract: A disclosed system includes a support frame including a plurality of surfaces, a millimeter-wave transmission link that generates a millimeter-wave transmission signal, a plurality of millimeter-wave array antennas, a millimeter-wave reception link, and an image processing device. The millimeter-wave array antennas are disposed on different surfaces of the support frame, and transmit millimeter-wave transmission signals from different angles to a to-be-detected object and receive echo signals reflected from the to-be-detected object. By providing the millimeter-wave array antennas on each of the plurality of surfaces of the support frame, and transmitting millimeter-wave transmission signals from different angles to a to-be-detected object and receiving echo signals reflected from different angles of the to-be-detected object, a three-dimensional image of the to-be-detected object can be established, thereby achieving omni-directional detection of the to-be-detected object. The system can detect human and objects at the same time, and is convenient, quick and highly accurate.
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公开(公告)号：US11017219B2
公开(公告)日：2021-05-25
申请号：US16305839
申请日：2017-05-17
Applicant: SHENZHEN VICTOOTH TERAHERTZ TECHNOLOGY CO., LTD , CHINA COMMUNICATION TECHNOLOGY CO., LTD.
Inventor： Chunchao Qi , Zhiquan Li , Hanjiang Chen , Guangsheng Wu , Shukai Zhao , Qing Ding
Abstract: This invention relates to a method and a device for human body gender detection in a microwave image. The structure feature of a human body itself as well as the constructed vertical direction spatial distribution histogram and horizontal direction spatial distribution histogram are used to accurately locate the chest position and the crotch position of the human body. A human body chest subimage is extracted according to the chest position, and a human body crotch subimage is extracted according to the crotch position. Then, the feature values of the human body chest subimage and the human body crotch subimage are respectively extracted by a feature value extraction algorithm, and the human body gender is automatically identified according to the feature values. The technical solution of this invention is simple, and after experimental verification, can be effectively applied in actual microwave security check system. This technical solution has high real time and high robustness, and its correct recognition rate meets the operating requirements. As such, the problem of how to identify human body gender in real time and accurately in a microwave security check system is solved. Besides, because the present invention can accurately locate the chest position and the crotch position of a human body, the human body's private part can be shielded and protected effectively according to this invention.
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公开(公告)号：US20190187327A1
公开(公告)日：2019-06-20
申请号：US16326305
申请日：2016-12-15
Applicant: CHINA COMMUNICATION TECHNOLOGY CO., LTD. , SHENZHEN VICTOOTH TERAHERTZ TECHNOLOGY CO., LTD.
Inventor： Shukai ZHAO , Chunchao QI , Zhihui FENG , Hanjiang CHEN
Abstract: A disclosed system includes a support frame including a plurality of surfaces, a millimeter-wave transmission link that generates a millimeter-wave transmission signal, a plurality of millimeter-wave array antennas, a millimeter-wave reception link, and an image processing device. The millimeter-wave array antennas are disposed on different surfaces of the support frame, and transmit millimeter-wave transmission signals from different angles to a to-be-detected object and receive echo signals reflected from the to-be-detected object. By providing the millimeter-wave array antennas on each of the plurality of surfaces of the support frame, and transmitting millimeter-wave transmission signals from different angles to a to-be-detected object and receiving echo signals reflected from different angles of the to-be-detected object, a three-dimensional image of the to-be-detected object can be established, thereby achieving omni-directional detection of the to-be-detected object. The system can detect human and objects at the same time, and is convenient, quick and highly accurate.
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