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1. 发明授权

US10497144B2 Vehicle inspection system, and method and system for identifying part of vehicle 有权
公开(公告)号：US10497144B2
公开(公告)日：2019-12-03
申请号：US15852103
申请日：2017-12-22
申请人： Nuctech Company Limited
发明人： Yanwei Xu , Zheng Hu , Yongming Wang , Chuan Gao , Weifeng Yu , Qiang Li , Yuan Ma , Jianping Gu , Yu Hu , Shangmin Sun
IPC分类号： G06K9/00 , G06K9/62 , G06N3/04 , G06N3/08 , G06T7/73 , G06T3/40
CPC分类号： G06T7/74 , G06K9/00771 , G06K9/6262 , G06N3/0472 , G06N3/08 , G06T3/40 , G06T2207/20081 , G06T2207/20084 , G06T2207/30248
摘要： 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.

2. 发明授权

US10495661B2 Method and device for monitoring state of moving object and system for fast inspecting vehicle 有权
公开(公告)号：US10495661B2
公开(公告)日：2019-12-03
申请号：US15278447
申请日：2016-09-28
申请人： Nuctech Company Limited
发明人： Junjie Tu , Yanwei Xu , Weifeng Yu , Yongming Wang
IPC分类号： G01P3/68 , G01S17/42 , G01S17/58 , G01S17/88 , G08G1/04 , G01P3/36 , G08G1/052 , G01V5/00
CPC分类号： G01P3/68 , G01P3/36 , G01S17/42 , G01S17/58 , G01S17/88 , G01V5/0016 , G08G1/04 , G08G1/052
摘要： The present disclosure relates to a method and a device for monitoring a state of a moving object and a system for fast inspecting a vehicle. The method and a device for monitoring a state of a moving object positions and measures speed of the moving object by using a laser scanner. The device includes: a laser scanner configured to monitor at least one moving object entering a monitoring region, by emitting a plurality of laser beams of different angles to the at least one moving object with a preset scanning frequency; and a processing unit configured to, for each moving object, determine and output a relative position of the moving object with respect to the laser scanner at each time instance. It can significantly improve the accuracy of measuring a low speed of the moving object, and the laser scanner is easy to install and has a low cost.

3. 发明申请

US20160180186A1 VEHICLE TYPE RECOGNITION METHOD AND FAST VEHICLE CHECKING SYSTEM USING THE SAME METHOD 审中-公开
标题翻译：车辆类型识别方法和使用相同方法的快速车辆检查系统
公开(公告)号：US20160180186A1
公开(公告)日：2016-06-23
申请号：US14972106
申请日：2015-12-17
申请人： NUCTECH COMPANY LIMITED
发明人： Shangmin Sun , Yanwei Xu , Qiang Li , Weifeng Yu , Yu Hu
IPC分类号： G06K9/32 , H04N5/33 , G06K9/20 , G06K9/00
CPC分类号： G06K9/3241 , G06K9/00201 , G06K9/00771 , G06K9/209 , H04N5/33
摘要： 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.
摘要翻译：提供了一种基于激光扫描仪的车辆识别方法，该方法包括：检测要检查的车辆已经进入识别区域; 使激光扫描仪相对于待检查的车辆移动; 使用激光扫描仪基于列扫描要检查的车辆，以及存储和拼接通过扫描获得的每列的数据，以形成要检查的车辆的三维图像，其中为每一个指定横向宽度值单列数据; 指定高度差阈值; 并且确定在列N的数据中要检查的车辆的最低位置处的高度与要检查的车辆的最低位置处的高度之间的高度差，该数据在指定的列数之前和/或之后的数据中列N.

4. 发明授权

US11952027B2 Train identification system and method, and train safety inspection system and method 有权
公开(公告)号：US11952027B2
公开(公告)日：2024-04-09
申请号：US17287116
申请日：2019-10-08
申请人： NUCTECH COMPANY LIMITED
发明人： Yanwei Xu , Weifeng Yu , Yu Hu , Shangmin Sun
IPC分类号： B61L27/60
CPC分类号： B61L27/60
摘要： The present disclosure relates to a train identification system and method, and a train safety inspection system and method. The train identification system includes: a remote detection component, configured to acquire overall feature information of an inspected train through remote monitoring; and an identification device, configured to determine at least one of a type and a traveling situation of the inspected train according to the acquired overall feature information.

5. 发明申请

US20180322358A1 VEHICLE TYPE RECOGNITION METHOD AND FAST VEHICLE CHECKING SYSTEM USING THE SAME METHOD 审中-公开
公开(公告)号：US20180322358A1
公开(公告)日：2018-11-08
申请号：US16022666
申请日：2018-06-28
申请人： NUCTECH COMPANY LIMITED
发明人： Shangmin SUN , Yanwei Xu , Qiang Li , Weifeng Yu , Yu Hu
IPC分类号： G06K9/32 , H04N5/33 , G06K9/00 , G06K9/20
CPC分类号： G06K9/3241 , G06K9/00201 , G06K9/00771 , G06K9/209 , H04N5/33
摘要： 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.

6. 发明授权

US11573322B2 Laser speed measuring method, control device and laser velocimeter 有权
公开(公告)号：US11573322B2
公开(公告)日：2023-02-07
申请号：US16826235
申请日：2020-03-22
申请人： NUCTECH COMPANY LIMITED , NUCTECH (BEIJING) COMPANY LIMITED
发明人： Jian Li , Shangmin Sun , Yongming Wang , Yanwei Xu , Weifeng Yu , Yu Hu , Chunguang Zong
IPC分类号： G01S17/58 , G01S7/48 , G01S7/481 , G01S17/08
摘要： 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.

7. 发明授权

US10036626B2 Vehicle guidance system, method for orientating vehicle, and inspection vehicle 有权
公开(公告)号：US10036626B2
公开(公告)日：2018-07-31
申请号：US15283115
申请日：2016-09-30
申请人： NUCTECH COMPANY LIMITED
发明人： Yanwei Xu , Defang Meng , Weifeng Yu
IPC分类号： G01B11/00 , G01B11/26 , G01B11/14 , G05D1/02 , G01M17/007
CPC分类号： G01B11/002 , G01B11/14 , G01B11/26 , G01M17/007 , G05D1/0236
摘要： Embodiments of the invention disclose a vehicle guidance system, a method for orientating a vehicle, and an inspection vehicle. The vehicle guidance system includes at least two separate reference devices; a laser scanner device, configured to emit a laser beam signals and scan a sectorial region with the laser beam so as to measure a distance of a straight connection line for connecting the laser scanner device to any of the at least two separate reference devices, and an angle between the corresponding straight connection line and a vehicle body of the vehicle, or an angle between the straight connection lines; a processor, configured to process and store data, and to determine whether the orientation of the vehicle body in real time is deviating from an initial orientation of the vehicle body upon the system starts to operate or not, in accordance with the sensed results by the laser scanner device.

8. 发明授权

US12020518B2 Vehicle inspection method, apparatus and system, and computer-readable storage medium 有权
公开(公告)号：US12020518B2
公开(公告)日：2024-06-25
申请号：US17421709
申请日：2020-01-23
申请人： NUCTECH COMPANY LIMITED , NUCTECH (BEIJING) COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Yongming Wang , Junjie Tu , Chuan Gao , Yanwei Xu , Weifeng Yu , Chunguang Zong , Yu Hu
IPC分类号： G07C5/08 , B60W40/10
CPC分类号： G07C5/0825 , B60W40/10 , G07C5/0808 , B60W2554/4041 , B60W2554/4049
摘要： 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.

9. 发明授权

US10690803B2 Mobile scanning inspection system 有权
公开(公告)号：US10690803B2
公开(公告)日：2020-06-23
申请号：US15798569
申请日：2017-10-31
申请人： Nuctech Company Limited
发明人： Tao Jiang , Yanwei Xu , Shangmin Sun , Yu Hu , Weifeng Yu , Xuejing Yang , Youai Yu , Ke Li , Defang Meng
IPC分类号： G01V8/26 , G01V8/20 , G01V5/00
摘要： 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.

10. 发明授权

US10337960B2 Method and system for fast inspecting vehicle based on measured lengths 有权
公开(公告)号：US10337960B2
公开(公告)日：2019-07-02
申请号：US15278435
申请日：2016-09-28
申请人： Nuctech Company Limited
发明人： Yanwei Xu , Weifeng Yu
IPC分类号： G01M17/007 , G01V5/00 , G01B11/04 , G01N23/04
摘要： A method and a system for fast inspecting a vehicle based on a length measuring device, including: when a subject vehicle enters an inspection region, measuring a first length and a second length of the subject vehicle; determining whether the first length and the second length is respectively larger than or equal to a preset second length threshold; if so, determining whether a gap portion of the subject vehicle between a first portion and a second portion of the subject vehicle appears in a beam emitting region formed by a beam of radiation rays emitted by the system for fast inspecting a vehicle; and when the gap portion appears in the beam emitting region, emitting a beam of radiation rays of a first radiation dose to the subject vehicle according to the gap portion, wherein the subject vehicle moves with respect to the system for fast inspecting a vehicle.

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