WO2016070649A1 - 一种基于旋转弧形探测器的双通道安检机 - Google Patents

一种基于旋转弧形探测器的双通道安检机 Download PDF

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Publication number
WO2016070649A1
WO2016070649A1 PCT/CN2015/084159 CN2015084159W WO2016070649A1 WO 2016070649 A1 WO2016070649 A1 WO 2016070649A1 CN 2015084159 W CN2015084159 W CN 2015084159W WO 2016070649 A1 WO2016070649 A1 WO 2016070649A1
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WIPO (PCT)
Prior art keywords
baggage
detector
security inspection
rotating
inspection machine
Prior art date
Application number
PCT/CN2015/084159
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English (en)
French (fr)
Chinese (zh)
Inventor
杨中荣
吕君
王强
李东茂
周祖元
Original Assignee
同方威视技术股份有限公司
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Application filed by 同方威视技术股份有限公司 filed Critical 同方威视技术股份有限公司
Priority to BR112016004202-6A priority Critical patent/BR112016004202B1/pt
Publication of WO2016070649A1 publication Critical patent/WO2016070649A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity

Definitions

  • the invention relates to a dual-channel security inspection machine, in particular to a dual-channel security inspection machine based on a rotating curved detector, belonging to the technical field of article safety detection.
  • X-rays are often used to perform security checks on items, such as to identify prohibited items in luggage, parcels, or containers.
  • X-ray imaging inspection equipment is one of the necessary detection methods for airports, stations, terminals, conferences, exhibitions, etc.
  • the object to be inspected needs to be moved relative to the X-ray source and the detector, and the detecting device can actively detect and display the displayed articles.
  • the general imaging system mainly includes the following parts.
  • X-ray machine through the ray generating device, produces stable X-ray; the front collimator is placed at the front end of the X-ray beam to adjust the scanning range of the X-ray; the rear collimator: the range where the X-ray reaches the receiving area Perform collimation processing.
  • the detector array receives X-rays emitted by the X-ray machine.
  • the main working principle is: X-rays emitted by the X-ray machine pass through the article passed by the front collimator, and then pass through the rear collimator. Finally, the detector receives the transmitted rays and converts them into electrical signals, which are processed to form an image. Displays the internal shape of the item.
  • the dual-channel security inspection machine currently used mainly uses the L-type detector and the single-light machine mode.
  • This dual-channel security inspection machine has the separation of the high-optical machine channel and the low-beam machine channel. This structural mode is due to the channel to the optical machine. The distance between the images is different, and the degree of clarity of the images formed is different.
  • the software is mainly processed by software and algorithms to make the images as consistent as possible.
  • the luggage of the civil aviation inspection is laterally placed on the electronic scale.
  • L-type detector and single-light machine combination Due to the combination of single-lens and dual-channel, the detector will be different from the target point, and the image formation will be different, which will also affect the image quality.
  • the existing dual-channel products cannot realize the natural separation of the baggage inspection baggage; this patent can solve the baggage inspection baggage. Natural sorting.
  • the technical problem to be solved by the present invention is to provide a dual-channel security inspection machine based on a rotating arc detector.
  • the present invention provides a dual channel security inspection machine based on a rotating arc detector comprising:
  • the rotation axis of the rotating arc detector is located on a perpendicular line connecting the two radiation generating devices, and the opening portion of the rotating arc detector faces two radiation generating devices;
  • the two security channels are located between the two radiation generating devices and the rotating curved detector.
  • the rotating arc detector comprises a circular arc detector integrated block and a rotating mechanism for rotating the rotating curved detector;
  • the opening portion of the circular arc detector integrated block faces the radiation generating device, and the circular arc detector is fixed on a rotating shaft away from the side of the opening portion, so that the circular arc detector integrated block
  • the rotary shaft is rotated centrally, and the rotating mechanism is disposed on a side away from the opening of the arc-shaped detector manifold to be connected with the circular arc detector integrated block.
  • the arc-shaped detector integrated block is fixed on the rotary shaft through a slewing bearing with a hole, and the hole on the rotary support is sleeved on the rotary shaft, and the support member It is fixed to the side of the circular arc type detector integrated block away from the opening.
  • the rotating mechanism is any one of an electric push rod device, a hydraulic push rod device, a pneumatic push rod device, a gear transmission mechanism, and a sprocket transmission mechanism.
  • the rotating mechanism is an electric push rod device
  • the electric push rod device includes a connecting rod that automatically expands and contracts by energization
  • the electric telescopic rod includes two ends, one of which is fixed at the double a channel security inspection machine, the other end is connected to the circular arc type detector integrated block on a traction shaft away from the opening side, the traction shaft and the back There is a large enough distance between the shafts.
  • a plurality of detector crystals are arranged on an arc of the arc-shaped detector integrated block, and the plurality of detector crystals are in a certain angular range, and adjacent detector crystals are installed side by side and
  • the source targets are arranged equidistantly, and the spacing of adjacent detector crystals is not more than 0.5 mm.
  • the two-channel security inspection machine further comprises a baggage sorting device, and the baggage sorting device is disposed at an exit of the security inspection channel;
  • the suspicious baggage sorting device includes a suspicious baggage conveying device, a normal baggage conveying device and a suspicious baggage delivering device, and the suspicious baggage delivering device is disposed on the suspicious baggage conveying device, the normal baggage conveying device and the security inspection channel Between exports;
  • the suspicious baggage delivery device When the dual-channel security inspection machine detects suspicious baggage, the suspicious baggage delivery device is activated, and the suspicious baggage is delivered to the suspicious baggage conveying device;
  • the two-channel security inspection machine detects that the baggage is normal baggage, it does not activate the suspicious baggage delivery device, and delivers the normal baggage to the normal baggage conveying device.
  • the suspicious baggage delivery device is a lift delivery device or a rotary delivery device.
  • the suspicious baggage delivery device comprises a baggage delivery plate and a baggage delivery plate rotation mechanism, the baggage delivery plate comprising two end portions, a rotating end portion and a free end;
  • the rotating end portion is reciprocally rotated along the rotary shaft at an exit of the security inspection passage by a rotary shaft, and the free end is controlled by the baggage throwing plate rotation mechanism to control the suspicious baggage conveying device or normal baggage conveying Device contact
  • the baggage throwing plate rotation mechanism is an electric pusher device
  • the electric pusher device includes a connecting rod that automatically expands and contracts by energization
  • the electric telescopic rod includes two end portions, one of which is fixed at one end
  • the other end is connected to the baggage delivery plate by a traction shaft
  • the traction shaft has a sufficiently large distance from the rotary shaft.
  • the two ray generating devices and the rotating arc detector are arranged vertically to the ground.
  • the two ray generating devices are located near the ground, and the rotating curved detector 1 is located at the top of the two-channel security inspection machine.
  • two sets of reference positioning devices are disposed on both sides of the rotating arc detector, and the reference positioning device is a detector reference block with a proximity sensor.
  • the dual-channel security inspection machine based on the rotating arc detector provided by the invention adopts a detector structure in which adjacent detector crystals are installed side by side, which solves the problems of image quality, scattering and silk resolution of the dual-channel product, and can greatly reduce scattering.
  • the suspicious baggage delivery device is designed as an independent rotatable lifting module, which effectively solves the problem of sorting of the unpacking, improves the efficiency of security inspection, and directly makes suspicious baggage and normal baggage judgment on the baggage, and judges the accuracy rate. Higher; solve problems such as floor space and staff shortage.
  • FIG. 1 is a schematic structural view of a dual-channel security inspection machine based on a rotating arc detector according to the present invention
  • FIG. 2 is a schematic structural view of a rotating arc detector of the present invention
  • FIG. 3 is a schematic view showing the working state of the left channel of the rotating arc detector of the present invention.
  • FIG. 4 is a schematic view showing the working state of the right channel of the rotating arc detector of the present invention.
  • Figure 5 is a schematic structural view of a rotating mechanism of the rotating arc detector of the present invention.
  • Figure 6 is a schematic view showing the structure of the baggage sorting apparatus of the present invention.
  • the present invention provides a dual-channel security inspection machine based on a rotating arc detector 1, comprising: two radiation generating devices 3, a rotating curved detector 1, and rays respectively in two radiation generating devices 3.
  • Two security inspection channels 4 in the range of the opening angle; the rotation axis of the rotary arc detector 1 is located on the perpendicular line connecting the two radiation generating devices 3, and the opening of the rotating curved detector 1 faces the two radiation generating devices 3
  • Two security channels 4 are located in two shots Between the line generating device 3 and the rotating curved detector 1. The following is a detailed description of the dual-channel security inspection machine.
  • the rotary arc detector 1 includes a circular arc detector manifold 15 and a rotating arc detector and a rotating rotating mechanism 2; the opening of the circular arc detector manifold 15 faces the radiation generating device
  • the radiation source of the rotating arc detector 1 is fixed on the rotary shaft 10 on the side away from the opening portion, so that the integrated block of the rotary curved detector 1 rotates around the rotary shaft 10, and the rotating mechanism 2 is disposed away from the circular arc shape.
  • One side of the opening of the detector manifold 15 is connected to the circular arc detector manifold 15.
  • the rotary arc detector 1 is fixed to the rotary shaft 10 via a perforated rotary support member 11, and the hole in the rotary support member 11 is fitted over the rotary shaft 10, and the rotary support member 11 is fixed to the rotary arc.
  • the shape detector 1 is away from the side of the opening.
  • the rotating mechanism 2 of the rotating arc detector is an electric push rod device
  • the electric push rod device includes a connecting rod 20 that automatically expands and contracts by energization
  • the electric telescopic rod includes two end portions. One of the ends is fixed to the X-ray inspection apparatus, and the other end is connected to the traction shaft 12 on the side of the rotating curved detector 1 away from the opening, and the traction shaft 22 is sufficiently distant from the rotary shaft 10.
  • the torque of the electric telescopic rod 2 to the rotating arc detector 1 is sufficiently large to rotate the rotary arc detector 1 along the rotary shaft 10.
  • one end of the telescopic rod of the electric push rod device is fixed to the X-ray inspection device by the rotating shaft 21.
  • the electric push rod device also rotates along the rotating shaft.
  • the rotating mechanism 2 is not limited to the electric push rod device, and the device capable of rotating the rotary curved detector 1 along the rotary shaft 10 can realize the present invention (for example, a hydraulic device, a pneumatic device, Gears, sprockets and other transmission mechanisms.).
  • a plurality of detector crystals 5 are disposed on the arc of the circular arc detector manifold 15.
  • the line connecting the center of the detector crystal 5 and the target is perpendicular to the tangent of the detector crystal 5 and the arc.
  • the connection between the center of each detector crystal 5 and the target line is the best for receiving energy when the corresponding detector crystal 5 is perpendicular to the tangent of the circular arc.
  • Multiple detector crystals 5 In the range of a certain angle of the radiation of the radiation generating device 3, the adjacent detector crystals are arranged side by side and equidistantly arranged from the target of the emission source, and the spacing of the adjacent detector crystals is not more than 0.5 mm.
  • the L-type detector effectively reduces the scattering problem of the ray, and the effect is better in reducing the scattering and improving the resolution of the wire.
  • the theoretical gap of adjacent detector crystals is small, and there is no spatial reflection of rays, which can effectively reduce the scattering of edge rays.
  • two sets of reference positioning devices are disposed on both sides of the circular arc detector integrated block 15, and the circle is ensured when the rotating curved detector 1 is rotated to the right or left.
  • the rotary arc detector is modularly designed, and the detector crystal 5 and its mounting plate are integrally adjusted as a module. Before installation, the detector crystals 5 are relatively straight and slit in the same reference plane by means of an open area such as an external platform. That is, the reference of each detector crystal 5 is uniform, and the relative positions are identical. This is easy and convenient to operate, and it is easy to find the datum.
  • the two-channel security inspection machine based on the rotating arc detector 1 provided by the invention forms two different correction tables in the self-test process.
  • the corresponding correction table is called, and the corresponding radiation generating device 3 emits X.
  • the beam of light meets the corresponding channel application and achieves corresponding image processing.
  • the rotating power of the rotating arc detector 1 is driven by the electric push rod device 2, and when the rotating curved detector 1 is rotated to the left and right channels, two sets of reference positioning devices are used to position the rotating arc detector 1 to rotate.
  • the reference positioning device is preferably a detector reference block with a proximity sensor. As shown in FIG.
  • the left ray generating device 3 when the left channel is used, the left ray generating device 3 emits an X-ray beam, the connecting rod 20 is opened and extended, and the rotating curved detector 1 is rotated clockwise around the rotary shaft 10. After the rotating arc detector 1 is rotated to the left, the relative position of the rotating surface of the rotating arc detector 1 is positioned by the left reference block of the detector, and the rotation sensor is determined by the proximity sensor of the left reference block of the detector to realize the rotating arc. The shape detector 1 is accurately positioned in the left channel. Similarly, when using the right channel, as shown in Figure 4, the right side shot The line generating device 3 emits an X-ray beam, the connecting rod 20 contracts, and the rotating curved probe 1 rotates counterclockwise about the rotary shaft 10.
  • the relative position of the rotating surface of the rotating arc detector 1 is positioned by the right reference block of the detector, and the rotation sensor is determined by the proximity sensor of the right reference block of the detector to realize the rotating arc.
  • the shape detector 1 is accurately positioned in the right channel.
  • the invention realizes the radiation detection requirements of different X-ray machines of different channels by the rotating mechanism, drives the electric push rod device 2 according to the cargo signal received by the conveyor belt signal of the security inspection machine, realizes the corresponding contraction and opening, and selectively according to the detection.
  • the sensors of the left/right reference block are accurately positioned to become detectors for different channels.
  • the dual-channel security inspection machine uses two radiation generating devices 3 and a rotating arc shape.
  • the detector 1 is set up in a vertical ground manner.
  • two ray generating devices 3 are located near the ground, and the rotating curved detector 1 is located at the top of the two-channel security inspection machine.
  • the present invention combines the top arc detector and the two ray generating devices disposed at the bottom (also called For bottom lighting, it can detect flat luggage.
  • the dual-channel security inspection machine further includes a baggage sorting device 8 disposed at an exit of the security inspection passage 4;
  • the suspicious baggage sorting device 8 includes a suspicious baggage transport device 81, a normal baggage transport device 82, and a suspicious baggage
  • the delivery device 83, the suspicious baggage delivery device 83 is provided between the suspicious baggage conveying device 81, the normal baggage conveying device 82 and the exit of the security inspection channel 4.
  • the suspicious baggage delivery device 83 When the dual-channel security inspection machine detects suspicious baggage, the suspicious baggage delivery device 83 is activated, and the suspicious baggage is delivered to the suspicious baggage conveying device 81; when the baggage detected by the dual-channel security inspection machine is normal baggage, the suspicious baggage is not activated.
  • the delivery device 83 delivers normal baggage to the normal baggage handling device 82.
  • the suspicious baggage delivery device 83 can be either The lift delivery device may also be a rotary delivery device.
  • the suspicious baggage dispensing device 83 is preferably a rotatable handoff mechanism.
  • the suspicious baggage dispensing device 83 is a rotatable transfer mechanism. Specifically, the baggage delivery plate 84 and the baggage throwing plate rotation mechanism 85 are included.
  • the baggage delivery plate 84 includes two end portions, a rotating end portion and a free end; and the rotating end portion is fixed to the exit of the security inspection passage 4 through the rotating shaft 80.
  • the reciprocating rotation is performed along the rotary shaft 80, and the free end is controlled to come into contact with the suspicious baggage conveying device 81 or the normal baggage conveying device 82 by the baggage throwing plate rotating mechanism 85.
  • the baggage throwing plate rotation mechanism 85 is an electric pusher device 85, and the electric pusher device 85 includes a connecting rod 86 that automatically expands and contracts by energization, and the electric telescopic rod 86 includes two end portions, one of which is fixed at one end.
  • the other end is connected to the baggage delivery plate 84 via a traction shaft 87, and the traction shaft 87 is sufficiently distant from the rotary shaft 80.
  • the torque of the electric telescopic rod 86 to the baggage feeding plate 84 is sufficiently large to rotate the baggage delivery plate 84 along the rotating shaft 80.
  • the baggage throwing plate rotation mechanism 85 is not limited to the electric pusher device, and the device capable of rotating the baggage delivery plate 84 along the rotary shaft 80 can realize the present invention. Further, the baggage throwing plate rotation mechanism 85 and the rotating mechanism of the rotary arc detector 1 may be the same rotating device.
  • the following two-channel security inspection machine based on the rotating arc detector provided by the present invention provides a corresponding description of the sorting process of the suspicious baggage.
  • the security inspection machine detects the suspicious baggage, it will alarm and first send the suspicious baggage to the suspicious baggage.
  • the baggage delivery device 81 transmits the suspect signal to the control center, and the control center issues an execution command, and the electric pusher device 85 rotates the baggage delivery plate 84 of the suspicious baggage delivery device 8 upward by a certain angle to form a suspicious baggage.
  • the suspected baggage conveying device 81 transports the suspicious baggage to the unpacking inspection conveyor belt, and then delivers it to the area to be inspected for reference; if the security inspection machine does not find the suspicious baggage, the electric push rod device 85 does not move, and the baggage is normally transported to the consignment office for consignment, so that The purpose is to reduce the sorting workload of the consignment, and also reduce the risk of baggage loss at the consignment.
  • the dual-channel security inspection machine based on the rotating arc detector provided by the invention adopts a detector structure in which adjacent detector crystals are installed side by side to solve the problems of image quality, scattering and silk resolution of the dual-channel product.
  • the suspicious baggage delivery device is designed as an independent rotatable or liftable form in the design of the whole machine, which effectively solves the problem of sorting the unpacking, improves the efficiency of security inspection, and directly makes suspicious baggage and normal baggage judgment on the baggage, and judges accurately. The rate is higher; the problem of floor space and shortage of personnel is solved.
  • the dual-channel security inspection machine based on the rotating arc detector provided by the invention adopts a detector structure in which adjacent detector crystals are installed side by side to solve the problems of image quality, scattering and silk resolution of the two-channel product.
  • the suspicious baggage delivery device is designed as an independent rotatable or liftable form in the design of the whole machine, which effectively solves the problem of sorting the unpacking, improves the efficiency of security inspection, and directly makes suspicious baggage and normal baggage judgment on the baggage, and judges accurately. The rate is higher; the problem of floor space and shortage of personnel is solved, and it has industrial applicability.

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  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
PCT/CN2015/084159 2014-11-05 2015-07-15 一种基于旋转弧形探测器的双通道安检机 WO2016070649A1 (zh)

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BR112016004202-6A BR112016004202B1 (pt) 2014-11-05 2015-07-15 Máquina de inspeção de segurança de canal duplo

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CN201410617405.XA CN104330833B (zh) 2014-11-05 2014-11-05 一种基于旋转弧形探测器的双通道安检机
CN201410617405.X 2014-11-05

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Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
CN104330833B (zh) * 2014-11-05 2017-05-24 同方威视技术股份有限公司 一种基于旋转弧形探测器的双通道安检机
CN105253608B (zh) * 2015-11-18 2019-02-12 同方威视技术股份有限公司 用于安全检测的物品分拣装置及输送系统
CN105700031B (zh) * 2016-03-31 2018-01-02 安徽启路达光电科技有限公司 一种旋转往复式通道x射线安检装置
CN109521500A (zh) * 2018-07-05 2019-03-26 北京中广通业信息科技股份有限公司 一种客运站安检协同控制方法和系统
CN114019571A (zh) * 2021-09-29 2022-02-08 浙江华视智检科技有限公司 安检设备及射线光路校正方法

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WO2005078419A1 (ja) * 2004-02-18 2005-08-25 Pony Industry Co., Ltd. 放射線透視撮影装置及びこれを用いた放射線透視撮影方法
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CN104330833A (zh) 2015-02-04
CN104330833B (zh) 2017-05-24
BR112016004202A2 (pt) 2017-08-01
BR112016004202B1 (pt) 2022-03-08

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