WO2023125409A1 - 安检设备、安检系统及安检方法 - Google Patents

安检设备、安检系统及安检方法 Download PDF

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Publication number
WO2023125409A1
WO2023125409A1 PCT/CN2022/141913 CN2022141913W WO2023125409A1 WO 2023125409 A1 WO2023125409 A1 WO 2023125409A1 CN 2022141913 W CN2022141913 W CN 2022141913W WO 2023125409 A1 WO2023125409 A1 WO 2023125409A1
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WO
WIPO (PCT)
Prior art keywords
ray
accelerator
detection device
security inspection
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/141913
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English (en)
French (fr)
Inventor
李元景
孙尚民
宗春光
宋涛
刘磊
马媛
喻卫丰
刘必成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nuctech Co Ltd
Nuctech Beijing Co Ltd
Original Assignee
Nuctech Co Ltd
Nuctech Beijing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nuctech Co Ltd, Nuctech Beijing Co Ltd filed Critical Nuctech Co Ltd
Priority to US18/715,229 priority Critical patent/US20250035569A1/en
Priority to EP22914663.4A priority patent/EP4459333A4/en
Publication of WO2023125409A1 publication Critical patent/WO2023125409A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
    • G01V5/22—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/10—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being confined in a container, e.g. in a luggage X-ray scanners
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/20—Sources of radiation
    • G01N2223/204—Sources of radiation source created from radiated target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/33—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts
    • G01N2223/3307—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts source and detector fixed; object moves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/50—Detectors
    • G01N2223/501—Detectors array

Definitions

  • At least one embodiment of the present disclosure relates to the technical field of security inspection, and in particular, to a security inspection device, a security inspection system, and a security inspection method.
  • the equipment for security inspection of the above-mentioned items to be inspected includes at least two brackets, and the two brackets are adjacently arranged at upstream and downstream positions in the moving direction of the items to be inspected.
  • two sets of scanning devices (such as X-ray accelerators and corresponding detector modules) need to be installed on the two brackets to scan the items to be inspected from at least two angles.
  • the above-mentioned security inspection equipment includes two brackets, therefore, a larger space needs to be occupied (or reserved).
  • each bracket needs to be installed with corresponding X-ray accelerator and detector modules, the number of required detector modules is relatively large.
  • the response signals collected by the detector modules and the control of the security inspection equipment are also relatively complicated.
  • the present disclosure provides a security inspection device, a security inspection system and a security inspection method, which are used to at least partly solve the above technical problems.
  • a security inspection device comprising: a bracket defining an inspection passage extending along a first direction; a first X-ray accelerator disposed on the top of the bracket at a position offset from the centerline of the inspection passage , configured to radiate first X-rays downwards toward the inspection channel for inspecting items to be inspected passing through the inspection channel; a second X-ray accelerator configured to radiate second X-rays to the inspection channel for to inspect the items to be inspected passing through the inspection channel; and the detector device, including: a plurality of detector modules, arranged on the support and facing the first X-ray accelerator and the second X-ray accelerator The right position is used to receive at least a part of the first X-ray and/or the second X-ray to form a transmission image of the item to be inspected; wherein, the first X-ray, the second X-ray and a plurality of The central planes formed by the detector modules are configured to lie in the same plane.
  • the detector device further includes a signal acquisition module, electrically connected to the first X-ray accelerator, the second X-ray accelerator and a plurality of the detector modules, so as to connect the detector The signal received by the module generated by the first X-ray and the second X-ray is marked.
  • a part of the detector modules are respectively configured as a side array and a bottom array; wherein, the side array is arranged on the inner side of the support, and the bottom array is arranged on the inner side of the support On the bottom surface, the ray angle of the first X-ray covers the side array and the bottom array.
  • another part of the detector module is configured as a top array; wherein, the top array is arranged on the inner top surface of the support, and the ray angle of the second X-ray covers the side. array and top array.
  • the ray angle of the second X-ray also covers a part of the bottom array.
  • the present disclosure also provides a security inspection method, including: the first X-ray accelerator and the second X-ray accelerator sequentially radiate the first X-ray and the second X-ray to the inspection channel at intervals; and the detector module collects the first X-ray ray and second x-ray and generate data packets respectively.
  • the detector module collects the first X-ray and the second X-ray and generates data packets respectively, including: the first X-ray accelerator and the second X-ray accelerator are radiating to the inspection channel The first X-ray and the second X-ray also output a synchronous pulse signal and/or an image marker signal to the detector module; the detector module collects the first X-ray and the second X-ray according to the synchronous pulse signal, and The collected data packets are marked as a first data packet and a second data packet according to the image marking signal.
  • the security inspection method further includes: according to the first data packet and the second data packet, the data in each data packet is segmented and stitched to generate a first transmission image and a second transmission image respectively .
  • the present disclosure also provides a security inspection system, which is used to detect moving vehicles, and is characterized in that it includes: security inspection equipment; and speed detection equipment, configured to be able to detect the speed of the vehicle, including: a first detection device, It is arranged upstream of the security inspection equipment; and the second detection device is arranged upstream of the security inspection equipment and is spaced apart from the first detection device; wherein, the first detection device and the second detection device are configured When the vehicle passes through the second detection device, the vehicle outline and the compartment of the detected vehicle are obtained, and when the vehicle leaves the second detection device, the distance between the second detection device and the first detection device is divided by the vehicle passing through the first detection device and the second detection device.
  • the time interval of the detection device measures the speed of the vehicle, and uses the measured speed of the vehicle to obtain the size of the cab, so as to determine the position of the cab of the moving vehicle in the inspection channel, and then determine the first X-ray accelerator and the second X-ray accelerator of the security inspection equipment.
  • the beam emitting time of the X-ray accelerator is such that the first X-ray accelerator and the second X-ray accelerator respectively emit beams after the cab passes through the security inspection equipment.
  • the first X-ray and the second X-ray that are radiated by the first X-ray accelerator and the second X-ray acceleration share a part of the detector modules for reception, and the number of detector modules required is small, so that the collection of signals and the security inspection
  • the control of the equipment is relatively simple, and it is beneficial to improve the economy of the security inspection equipment.
  • the exemplary embodiment of the present disclosure also discloses a security inspection method.
  • the first X-ray accelerator and the second X-ray accelerator radiate X-rays at intervals in sequence, and the detector module can detect the first X-ray and the second X-ray accordingly. Marking is done such that different x-rays received by the detector modules generate corresponding transmission images.
  • FIG. 1 is a schematic diagram of a security inspection device according to an exemplary embodiment of the present disclosure
  • Fig. 2 is a schematic diagram of a left perspective in the exemplary embodiment shown in Fig. 1;
  • Fig. 3 is a flowchart of a security inspection method according to an exemplary embodiment of the present disclosure
  • 4 is a schematic diagram of an X-ray pulse signal according to an exemplary embodiment of the present disclosure, wherein 4A represents the pulse signal output by the first X-ray accelerator, 4B represents the pulse signal output by the second X-ray accelerator, and 4C represents The pulse signal collected and marked by the signal acquisition module;
  • Fig. 5 is a transmission image formed by a first X-ray according to an exemplary embodiment of the present disclosure
  • FIG. 6 is a transmission image formed by a second X-ray according to an exemplary embodiment of the present disclosure.
  • Fig. 7 is a schematic diagram of a security inspection system according to an exemplary embodiment of the present disclosure.
  • a second detection device 82.
  • a "system of at least one” shall include, but not be limited to, systems having A alone, B alone, C alone, A and B, A and C, B and C, and/or A, B, C, etc.
  • an expression similar to “at least one of A, B, or C, etc.” is used, it should generally be interpreted according to the meaning generally understood by those skilled in the art.
  • “having A “system of at least one” shall include, but not be limited to, systems having A alone, B alone, C alone, A and B, A and C, B and C, and/or A, B, C, etc.
  • Fig. 1 is a schematic diagram of a security inspection device according to an exemplary embodiment of the present disclosure
  • Fig. 2 is a schematic diagram of a left perspective in the exemplary embodiment shown in Fig. 1 .
  • the present disclosure provides a security inspection device, as shown in FIG. 1 and FIG. 2 , comprising: a support 6 , a first X-ray accelerator 1 , a second X-ray accelerator 2 and a detection device.
  • the bracket 6 defines an inspection channel extending along the first direction.
  • the first X-ray accelerator 1 is arranged on the top of the support 6 at a position offset from the center line of the inspection channel, and is configured to radiate the first X-rays 11 downwards toward the inspection channel, so as to inspect the items 7 to be inspected passing through the inspection channel. examine.
  • the second X-ray accelerator 2 is configured to radiate second X-rays 21 to the inspection channel, so as to target the items 7 to be inspected passing through the inspection channel.
  • the detector device includes but is not limited to the position on the bracket 6 facing the first X-ray accelerator 1 and the second X-ray accelerator 2 for receiving at least a part of the first X-ray and/or the second X-ray Rays to form a plurality of detector modules of the transmission image of the item 7 to be inspected.
  • the central planes formed by the first X-ray, the second X-ray and the plurality of detector modules are configured to be located in the same plane. In this way, the first X-ray accelerator 1 , the second X-ray accelerator 2 and a plurality of detector modules are all arranged in the same bracket 6 , which can save the space occupied by at least one bracket 6 .
  • the first X-ray accelerator 1 is arranged on the top of the support that deviates from the center line of the detection channel, and can cover a larger radiation area. More detector modules can be covered under the same height. And because the first X-ray 11 , the second X-ray 21 and the detector modules are configured to be located in the same plane, at least a part of the detector modules can be shared. Therefore, compared with the structure in which the first X-ray accelerator and the corresponding detector device, and the second X-ray accelerator and the corresponding detector device are respectively arranged in two groups of brackets, the security inspection device of the present disclosure can reduce the number of detectors used. The number of controller modules is used to achieve the purpose of easy control and cost saving.
  • the bracket 6 includes but is not limited to a door-shaped frame.
  • the door-shaped frame includes two side end surfaces arranged in parallel at intervals and a top surface arranged on the two side end surfaces, and the bottoms of the two side end surfaces are arranged on the working surface.
  • the entrance and exit of the inspection channel are facingly arranged between two end surfaces of the door-shaped frame in the first direction.
  • the working surface includes but not limited to the ground. It may also include any one of a bottom plate (protruding from the ground) and a groove (recessed toward the ground) facing the top surface.
  • the bracket 6 includes: two side plates arranged in parallel and spaced apart on the working surface, a top plate arranged between the upper parts of the two side plates, and a top plate formed on the two side plates The groove between the lower parts.
  • the area surrounded by the top plate, the groove and the two side plates defines an inspection channel, and the inspection channel extends along the horizontal direction (i.e. the first direction), and the inspection channel includes an entrance and a An exit for the item 7 to be inspected to leave the inspection channel, the entrance and the exit are set opposite to each other.
  • the distance by which the first X-ray accelerator 1 is offset from the centerline of the inspection channel includes but is not limited to 1500 to 4000 millimeters.
  • the first X-ray accelerator 1 is offset by a distance of 3105 mm from the centerline of the inspection channel. It should be understood that the embodiments of the present disclosure are not limited thereto.
  • the distances by which the first X-ray accelerator 1 is offset from the centerline of the inspection channel are 3600, 2600 mm, 2100 mm, 1600 mm and other distances located in the above range.
  • the distance by which the first X-ray accelerator 1 is offset from the centerline of the inspection channel may be greater than 4000 mm or less than 1500 mm.
  • the first X-ray accelerator 1 radiates first X-rays into the support 6 at an angle oblique to the vertical direction.
  • the inclination to the vertical direction means that the centerline of the fan-shaped surface formed by the first X-ray is not perpendicular to the working surface (such as the ground).
  • the central plane formed by the detector modules is characterized as the centerline of the receiving end of each detector module in the array formed by a plurality of detector modules along rows and columns located in the same plane, so that the first X-ray 11 and the second X-ray 21 can be received by the detector module.
  • the first X-ray accelerator 1 and/or the second X-ray accelerator 2 are arranged on the bracket 6 .
  • the first X-ray accelerator 1 is arranged on the top plate.
  • the second X-ray accelerator 2 is arranged on one side board. It should be understood that the embodiments of the present disclosure are not limited thereto.
  • the first X-ray accelerator 1 and/or the second X-ray accelerator 2 can also be arranged inside the bracket 6 and/or external.
  • the first X-rays 11 and the second X-rays 21 radiated outward by the radiation source form a fan-shaped surface.
  • the ray opening angle of the X-rays formed by the fan-shaped surface is preferably such that the X-rays can cover a suitable detector module.
  • the fan-shaped regions formed by the first X-rays 11 and the second X-rays 21 partially overlap.
  • the ray angle of the first X-ray 11 includes but not limited to 60° to 80°. Taking the vehicle 71 as an example of the object 7 to be inspected, the main beam of the first X-ray 11 covers the area above the chassis of the vehicle 71 (such as cargo), so that the X-rays above the main beam are not blocked by the chassis.
  • the ray opening angle of the first X-ray is 60°. It should be understood that the embodiments of the present disclosure are not limited thereto.
  • the ray opening angle of the first X-ray is 65°, 70°, 75° and any other angle in the above range.
  • the ray angle of the second X-ray 21 includes but not limited to 50° to 70°.
  • the radiation direction of the first X-ray 11 and the second X-ray The radiation directions of the rays 21 are all perpendicular to the first direction defined by the inspection channel.
  • the inspection channel extends along the horizontal direction, and the first X-ray and the second X-ray are radiated along the vertical direction. It should be understood that the embodiments of the present disclosure are not limited thereto.
  • the inspection channel extends in the vertical direction, and the first X-rays and the second X-rays are radiated in the horizontal direction.
  • the detection channel is divided into a detection area and a non-detection area, and the object 7 to be inspected is detected in the detection area, then the first direction should be defined by the moving direction of the object 7 to be inspected in the detection area, and the first X-ray and the second X-ray X-rays are approximately perpendicular to the first direction.
  • the detector device further includes a signal acquisition module.
  • the signal acquisition module is electrically connected to the first X-ray accelerator 1, the second X-ray accelerator 2 and a plurality of detector modules to mark the signals received by the detector modules generated by the first X-ray and the second X-ray .
  • a plurality of detector modules are arranged in a tiled manner to form a row, column or array; wherein, tiled means that the receiving ends of each detector module in each row, column or array are located in the same plane. This facilitates the arrangement and connection of the detector modules.
  • the plurality of detectors are respectively configured to include but not limited to three arrays, wherein the first array, the second array and the third array are respectively arranged on the three end surfaces of the support 6, the first One array is arranged on the top surface, the second array is arranged on the side surface, and the third array is arranged on the bottom surface.
  • the first array and the third array are parallel and perpendicular to the second array.
  • a part of the detector modules are respectively configured as a side array 4 and a bottom array 5; wherein, the side array 4 is arranged on the inner side of the support 6, and the bottom array is arranged on the inner bottom surface of the support 6.
  • the beam angle of an X-ray 11 covers the side array 4 and the bottom array 5 .
  • the side array 4 includes, but is not limited to, a detector module group formed by arranging a plurality of detector modules along the vertical column.
  • the bottom array 5 includes, but is not limited to, a detector module group formed by arranging a plurality of detector modules along the row and horizontal direction.
  • another part of the detector module is configured as a top array 3; wherein, the top array 3 is arranged on the inner top surface of the bracket 6, and the ray angle of the second X-ray covers the side array 4 and the top array 3.
  • the ray angle of the second X-ray also covers a part of the bottom array 5 .
  • the second X-ray accelerator 2 is arranged on the side of the bracket 6 where no detector module is arranged, and is located on the side of the first X-ray accelerator 1 that is off-center.
  • the second X-ray accelerator 2 is arranged at the lower part of the left side of the support 6 , as shown in FIG. 1 .
  • the second X-ray accelerator 2 is provided at a lower position on the right side of the support 6 .
  • FIG. 3 is a flowchart of a security inspection method according to an exemplary embodiment of the present disclosure
  • Fig. 4 is a schematic diagram of an X-ray pulse signal according to an exemplary embodiment of the present disclosure, wherein 4A represents the first X-ray The pulse signal output by the accelerator, 4B represents the pulse signal output by the second X-ray accelerator, and 4C represents the pulse signal collected and marked by the signal acquisition module;
  • FIG. 6 is a transmission image formed by the second X-ray according to an exemplary embodiment of the present disclosure.
  • Another aspect of the present disclosure also provides a security inspection method, as shown in FIGS. Two X-rays 21 ; and the detector module collects the first X-ray 11 and the second X-ray 21 and generates data packets respectively.
  • the first X-ray accelerator 1 and the second X-ray accelerator 2 respectively radiate the first X-ray 11 (including the beam) and the second X-ray 21 (including the beam) according to a predetermined frequency and time interval bundle).
  • the detector module collects the first X-ray 11 and the second X-ray 21 and generates data packets respectively, including: the first X-ray accelerator 1 and the second X-ray accelerator 2 in While radiating the first X-ray 11 and the second X-ray 21 to the inspection channel, it also outputs a synchronous pulse signal and/or an image marking signal to the detector module; the detector module collects the first X-ray 11 and the second X-ray according to the synchronous pulse signal ray 21, and mark the collected data packets as a first data packet and a second data packet according to the image marking signal.
  • the synchronous pulse signal and image marker signal output by the first X-ray accelerator 1 (such as 4A), the second X-ray accelerator 2 (such as 4B) and/or to the detector module are output to Signal acquisition module, the signal acquisition module collects the pulse signal (such as 4A) from the first X-ray accelerator 1 and the pulse signal 4B (such as 4B) from the second X-ray accelerator 2 according to the synchronous pulse signal, and collects the data packet Mark the corresponding X-ray accelerator to form an acquisition signal with the accelerator pulse source mark (such as 4C).
  • the accelerator pulse source mark such as 4C
  • the security inspection method further includes: splicing the data in each data packet according to the first data packet and the second data packet to generate the first transmission image respectively (Fig. 5) and the second transmission image (Fig. 6).
  • Fig. 7 is a schematic diagram of a security inspection system according to an exemplary embodiment of the present disclosure.
  • the security inspection system includes: security inspection equipment and a speed detection device 8 configured to detect the speed of the vehicle 71 .
  • the speed detection device 8 includes: a first detection device 81 and a second detection device 82 arranged upstream of the security inspection device, and the first detection device 81 and the second detection device 82 are arranged at intervals.
  • the first detection device 81 and the second detection device 82 are configured to obtain the vehicle profile and detect that the compartment of the vehicle leaves the second detection device 82 when the vehicle 71 passes the second detection device 82, and pass through the first detection device 81 and the second detection device 82
  • the distance between the detection devices 82 is divided by the time interval measurement of the vehicle passing the first detection device 81 and the second detection device 82 to obtain the speed of the vehicle 71, and the measured speed of the vehicle 71 is used to obtain the size of the cab, thereby determining the moving distance.
  • the speed detection device 8 includes a first detection device 81 and a second detection device 82 .
  • the second detection device 82 is located at the upstream position of the security inspection equipment, and is configured to obtain the vehicle outline and detect that the compartment of the vehicle leaves the second detection device 82 when the vehicle passes the second detection device 82, and passes through the first detection device 81 and the second detection device 82.
  • the distance between the detection devices 82 is divided by the time interval of the vehicle passing the first detection device 81 and the second detection device 82 to measure the speed of the vehicle, and the speed of the measured vehicle is used to obtain the size of the cab, thereby determining the speed of the moving vehicle.
  • the position of the cab in the inspection passage and further determining the beam emitting time of the first X-ray accelerator and the second X-ray accelerator, so as to respectively emit beams after the cab passes through the first X-ray accelerator and the second X-ray accelerator.
  • obtaining the vehicle outline through the second detection device 82 includes detecting the front of the vehicle and finding the boundary between the cab and the compartment of the vehicle.
  • the second detection device 82 is arranged upstream of the first detection device 81 (relative to the direction of travel of the vehicle), and the first detection device 81 is located upstream of the first X-ray accelerator and the second X-ray accelerator for
  • the vehicle outline size is obtained, including detection of the front of the vehicle, finding the boundary between the vehicle cab and the compartment, and detecting that the vehicle compartment leaves the second detection device 82, and together with the second detection device 82, measure the vehicle's Speed, that is, the speed of the vehicle measured by dividing the distance between the first detection device 81 and the second detection device 82 by the time interval for the vehicle to pass the first detection device 81 and the second detection device 82, thereby obtaining the distance between the cab and the compartment. length.
  • the second detection device 82 emits light perpendicular to the inspection channel.
  • the light emitted by the second detection device 82 is reflected by the vehicle, and the second detection device 82 receives the light reflected by the vehicle.
  • the vehicle continues to move forward, and the light curtain emitted by the first detection device 81 illuminates the advancing vehicle, so that the arrival of the vehicle head can be detected, so that according to the distance between the first detection device 81 and the second detection device 82, And the time interval between the head of the vehicle arriving at the second detection device 82 and the first detection device 81 recorded by the security inspection equipment to calculate the speed of the vehicle.
  • the position of the vehicle can be judged by timing: the head of the vehicle passes the second detection device After the predetermined time T1 after 82, the vehicle cab leaves the first X-ray accelerator and the second X-ray accelerator (support 6), and at this time, the first X-ray accelerator and the second X-ray accelerator are allowed to emit beams sequentially.

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Abstract

一种安检设备，包括：支架（6），限定沿第一方向延伸的检查通道；第一X射线加速器（1），设置在支架（6）的顶部的偏移检查通道的中心线的位置，配置成向下朝向检查通道辐射第一X射线（11），用以对通过检查通道的待检物品（7）进行检查；第二X射线加速器（2），配置成向检查通道辐射第二X射线（21）用以对通过检查通道的待检物品（7）进行检查；以及探测器装置，包括：多个探测器模块，设置在支架（6）上与第一X射线加速器（1）和第二X射线加速器（2）面对的位置，用于接收至少一部分第一X射线（11）和/或第二X射线（21），以形成待检物品（7）的透射图像；其中，第一X射线（11）、第二X射线（21）及探测器装置中的探测器模块构造成位于同一平面内。还包括一种安检系统和一种应用于安检设备的安检方法。

Description

安检设备、安检系统及安检方法 技术领域
本公开的至少一种实施例涉及一种安全检查技术领域，尤其涉及一种安检设备、安检系统及安检方法。
背景技术
目前，对于大型物品进行安检的需求越来越高，例如在海关等工作场景中，就需要对集装箱和/或车辆等体积较为庞大的待检物品进行扫描。
目前，针对上述待检物品进行安检的设备至少包括两个支架，两个支架相邻设置在待检物品移动方向的上下游位置。并且，需要在两个支架上分别设置两套扫描设备(如含X射线加速器及相应的探测器模块)，用以从至少两个角度对待检物品进行扫描。
上述安检设备中包含两个支架，因此，需要占用(或预留)较大的空间。另外，由于每个支架均需要安装相应的X射线加速器和探测器模块，因此，所需的探测器模块的数量也较多。进一步地，由于探测器模块的数量较多，探测器模块采集的响应信号以及对安检设备的控制也较为复杂。
发明内容
针对于现有的技术问题，本公开提供一种安检设备、安检系统及安检方法，用于至少部分解决以上技术问题。
本公开的一方面提供一种安检设备，包括：支架，限定沿第一方向延伸的检查通道；第一X射线加速器，设置在所述支架的顶部的偏移所述检查通道的中心线的位置，配置成向下朝向所述检查通道辐射第一X射线，用以对通过所述检查通道的待检物品进行检查；第二X射线加速器，配置成向所述检查通道辐射第二X射线用以对通过所述检查通道的待检物品进行检查；以及探测器装置，包括：多个探测器模块，设置在所述支架上与所述第一X射线加速器和所述第二X射线加速器面对的位置，用于接收至少一部分所述第一X射线和/或第二X射线，以形成所述待检物品的透射图像；其 中，所述第一X射线、第二X射线及多个所述探测器模块所形成的中心面构造成位于同一平面内。
根据本公开的实施例，所述探测器装置还包括信号采集模块，和所述第一X射线加速器、第二X射线加速器及多个所述探测器模块电连接，用以将所述探测器模块接收的由第一X射线和第二X射线所产生的信号进行标记。
根据本公开的实施例，多个所述探测器模块平铺设置构造成行、列或阵列；其中，平铺表征为每一行、列或阵列中的每个所述探测器模块的接收端均位于同一平面内。
根据本公开的实施例，一部分所述探测器模块分别构造成侧部阵列及底部阵列；其中，所述侧部阵列设置在所述支架的内侧侧面，所述底部阵列设置在所述支架的内侧底面，所述第一X射线的射线张角覆盖所述侧部阵列及底部阵列。
根据本公开的实施例，另一部分所述探测器模块构造成顶部阵列；其中，所述顶部阵列设置在所述支架的内侧顶面，所述第二X射线的射线张角覆盖所述侧部阵列及顶部阵列。
根据本公开的实施例，所述第二X射线的射线张角还覆盖一部分所述底部阵列。
本公开还提供一种安检方法，包括：第一X射线加速器及第二X射线加速器依次间隔向检查通道辐射第一X射线及第二X射线；以及所述探测器模块采集所述第一X射线和第二X射线并分别生成数据包。
根据本公开的实施例，所述探测器模块采集所述第一X射线和第二X射线并分别生成数据包，包括：所述第一X射线加速器及第二X射线加速器在向检查通道辐射第一X射线及第二X射线的同时还向所述探测器模块输出同步脉冲信号和/或图像标记信号；探测器模块依据所述同步脉冲信号采集第一X射线和第二X射线，并依据所述图像标记信号将采集到的数据包标记为第一数据包和第二数据包。
根据本公开的实施例，所述安检方法还包括：依据所述第一数据包和第二数据包对每个数据包中的数据进行分图拼接，分别生成第一透射图像和第二透射图像。
本公开还提供一种安检系统，应用于对移动中的车辆进行检测，其特征在于，包括：安检设备；以及速度检测设备，配置成能够检测所述车辆的速度，包括：第一检测装置，设置在所述安检设备的上游；以及第二检测装置，设置在所述安检设备的上游，并与所述第一检测装置间隔设置；其中，所述第一检测装置和第二检测装置，配置成在车辆通过第二检测装置时得出车辆轮廓和检测车辆的车厢，离开第二检测装置， 通过第二检测装置和第一检测装置之间的距离除以车辆通过第一检测装置和第二检测装置的时间间隔测量车辆的速度，使用测量的车辆的速度得出驾驶室的尺寸，从而确定移动的车辆的驾驶室在检查通道的位置，进而确定安检设备的第一X射线加速器及第二X射线加速器的出束时间，以便在驾驶室通过所述安检设备后第一X射线加速器及所述第二X射线加速器分别出束。
本公开的示意性实施例中公开了一种安检设备，第一X射线加速器、第二X射线加速器及探测器装置均设置在一个支架中，紧凑性较高，以使得安检设备所占用的空间较小。第一X射线加速器设置在偏移于检测通道中心线的位置，以使得在第一X射线的射线张角一定的前提下可覆盖更大的扫描面积，有利于降低安检设备的高度。由第一X射线加速器、第二X射线加速辐射的第一X射线和第二X射线共用一部分探测器模块进行接收，所需的探测器模块数量较少，以使得对于信号的采集和对安检设备的控制较为简便，且有利于提升安检设备的经济性。
本公开是的示意性实施例中还公开了一种安检方法，第一X射线加速器及第二X射线加速器依次间隔辐射X射线，探测器模块可据此对第一X射线和第二X射线进行标记，以使得通过探测器模块接收的不同X射线来生成对应的透射图像。
本公开的示意性实施例中还提供一种安检系统，在安检设备的上游设置速度检测设备，依据所测量车辆的速度控制第一X射线加速器和第二X射线加速器的出束时间，用以在车辆的驾驶室通过安检设备后再辐射X射线，以提升检测过程的安全性。
附图说明
图1是根据本公开的一种示意性实施例的安检设备的原理图；
图2是图1所示的示意性实施例中左侧视角的示意图；
图3是根据本公开的一种示意性实施例的安检方法的流程图；
图4是根据本公开的一种示意性实施例的X射线的脉冲信号的示意图，其中，4A表征第一X射线加速器输出的脉冲信号，4B表征第二X射线加速器输出的脉冲信号，4C表征信号采集模块采集并标记后的脉冲信号；
图5是根据本公开的一种示意性实施例的第一X射线所形成的透射图像；
图6是根据本公开的一种示意性实施例的第二X射线所形成的透射图像；以及
图7是根据本公开的一种示意性实施例的安检系统的原理图。
附图标记
1、第一X射线加速器；
11、第一X射线；
2、第二X射线加速器；
21、第二X射线；
3、顶部阵列；
4、侧部阵列；
5、底部阵列；
6、支架；
7、待检物品；
71、车辆；
8、速度检测设备；
81、第一检测装置；以及
82、第二检测装置。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚明白，以下结合具体实施例，并参照附图，对本公开作进一步地详细说明。
在此使用的术语仅仅是为了描述具体实施例，而并非意在限制本公开。在此使用的术语“包括”、“包含”等表明了所述特征、步骤、操作和/或部件的存在，但是并不排除存在或添加一个或多个其他特征、步骤、操作或部件。
在此使用的所有术语包括技术和科学术语具有本领域技术人员通常所理解的含义，除非另外定义。应注意，这里使用的术语应解释为具有与本说明书的上下文相一致的含义，而不应以理想化或过于刻板的方式来解释。
在使用类似于“A、B和C等中至少一个”这样的表述的情况下，一般来说应该按照本领域技术人员通常理解该表述的含义来予以解释例如，“具有A、B和C中至少一个的系统”应包括但不限于单独具有A、单独具有B、单独具有C、具有A和B、具有A和C、具有B和C、和/或具有A、B、C的系统等。在使用类似于“A、B或C等中至少一个”这样的表述的情况下，一般来说应该按照本领域技术人员通常理解该 表述的含义来予以解释例如，“具有A、B或C中至少一个的系统”应包括但不限于单独具有A、单独具有B、单独具有C、具有A和B、具有A和C、具有B和C、和/或具有A、B、C的系统等。
图1是根据本公开的一种示意性实施例的安检设备的原理图；图2是图1所示的示意性实施例中左侧视角的示意图。
本公开提供一种安检设备，如图1和图2所示，包括：支架6、第一X射线加速器1、第二X射线加速器2以及探测装置。
支架6，限定沿第一方向延伸的检查通道。
第一X射线加速器1，设置在支架6顶部的偏移检查通道的中心线的位置，并配置成向下朝向检查通道辐射第一X射线11，用以对通过检查通道的待检物品7进行检查。
第二X射线加速器2，配置成向检查通道辐射第二X射线21，用以对通过检查通道的待检物品7。
探测器装置，探测器装置包括但不限于设置在支架6上与第一X射线加速器1和第二X射线加速器2面对的位置，用于接收至少一部分第一X射线和/或第二X射线，以形成所述待检物品7的透射图像的多个探测器模块。其中，第一X射线、第二X射线及多个探测器模块所形成的中心面构造成位于同一平面内。这样第一X射线加速器1、第二X射线加速器2及多个探测器模块均设置在同一个支架6内，至少可节省一个支架6所占用的空间。而且，第一X射线加速器1设置在偏移检测通道的中心线的支架的顶部，在第一X射线11的射线张角一定及第一X射线加速器1的高度相同的条件下可覆盖较大的辐射面积。在同一高度下可覆盖较多的探测器模块。并且由于第一X射线11、第二X射线21及探测器模块构造成位于同一平面内，可共用至少一部分探测器模块。因此，相对于采用例如两组支架分别布置第一X射线加速器和相对应的探测器装置、以及第二X射线加速器和相对应的探测器装置的结构，本公开的安检设备可减少所用的探测器模块的数量，以达到便于控制和节约成本的目的。
在一种示意性的实施例中，如图1所示，支架6包括但不限于门形框架。其中，门形框架包括两个平行间隔设置的侧端面以及设置在两个侧端面上的顶面，两个侧端面的底部设置在工作面上。检查通道的入口和出口面对设置于门形框架的第一方向上的两个端面之间。
详细地，工作面包括但不限于地面。还可包括与顶面面对设置的底板(由地面凸出)和凹槽(向地面凹陷)中的任一一种。
在一种示意性的实施例中，支架6，包括：设置在工作面上平行间隔设置的两个侧板，设置在两个侧板的上部之间的顶板，以及形成于两个侧板的下部之间的沟槽。其中，顶板、沟槽及两个侧板所围成的区域限定检查通道，检查通道沿水平方向(即第一方向)延伸，检查通道包括用于待检物品7进入所述检查通道的入口和用于待检物品7离开所述检查通道的出口，所述入口和出口相对设置。
在一种示意性的实施例中，第一X射线加速器1偏移检查通道的中心线的距离包括但不限于1500至4000毫米。
详细地，第一X射线加速器1偏移检查通道的中心线的距离为3105毫米。应当理解，本公开的实施例不限于此。
例如，第一X射线加速器1偏移检查通道的中心线的距离为3600、2600毫米、2100毫米、1600毫米以及其他位于上述区间的其他距离。
相反地，在另一种示意性的实施例中，第一X射线加速器1偏移检查通道的中心线的距离可大于4000毫米或小于1500毫米。
在一种示意性的实施例中，第一X射线加速器1以倾斜于竖直方向的角度向支架6内辐射第一X射线。其中，倾斜于竖直方向表征为第一X射线所形成的扇形面的中线不与工作面(如地面)相垂直。
在一种示意性的实施例中，如图2所示，探测器模块所形成的中心面表征为多个探测器模块沿行、列所形成的阵列中每个探测器模块的接收端的中心线位于同一平面内，以使得第一X射线11和第二X射线21能被探测器模块接收到。
在一种示意性的实施例中，第一X射线加速器1和/或第二X射线加速器2设置在支架6上。
详细地，第一X射线加速器1设置在顶板。
进一步地，第二X射线加速器2设置在一侧板上。应当理解，本公开的实施例不限于此。
例如，在保证第一X射线11和第二X射线21向探测器模块辐射的前提下，第一X射线加速器1和/或第二X射线加速器2也可设置在支架6的内部和/或外部。
在一种示意性的实施例中，由射线源向外辐射的第一X射线11和第二X射线21 形成扇形面。扇形面所形成的X射线的射线张角以X射线能够覆盖适合的探测器模块为宜。
详细地，第一X射线11和第二X射线21所形成的扇形区域部分重合。
在一种示意性的实施例中，第一X射线11的射线张角包括但不限于60至80°。以待检物品7为车辆71为例，第一X射线11的主束覆盖车辆71的底盘以上的区域(如货物)，这样可使得主束以上的X射线不被底盘遮挡。
详细地，第一X射线的射线张角为60°。应当理解，本公开的实施例不限于此。
例如，第一X射线的射线张角为65°、70°、75°及上述区间的其他任一角度。
在一种示意性的实施例中，第二X射线21的射线张角包括但不限于50°至70°在一种示意性的实施例中，第一X射线11的辐射方向和第二X射线21的辐射方向均与检查通道所限定的第一方向垂直。
详细地，检查通道沿水平方向延伸，第一X射线和第二X射线沿竖直方向辐射。应当理解，本公开的实施例不限于此。
例如，检查通道沿竖直方向延伸，第一X射线和第二X射线沿水平方向辐射。
例如，检测通道划分为检测区和非检测区，待检物品7在检测区内进行检测，则应以待检物品7在检测区内的移动方向限定第一方向，第一X射线和第二X射线与该第一方向大致垂直。
根据本公开的实施例，探测器装置还包括信号采集模块。信号采集模块和第一X射线加速器1、第二X射线加速器2及多个探测器模块电连接，用以将探测器模块接收的由第一X射线和第二X射线所产生的信号进行标记。
根据本公开的实施例，多个探测器模块平铺设置构造成行、列或阵列；其中，平铺表征为每一行、列或阵列中的每个探测器模块的接收端均位于同一平面内。这样有利于探测器模块的布置和连接。
在一种示意性的实施例中，多个探测器分别构造成包括但不限于三个阵列，其中，第一阵列、第二阵列和第三阵列分别设置在支架6的三个端面上，第一阵列设置在顶面，第二阵列设置在侧面，第三阵列设置在底面，第一阵列和第三阵列平行，且均与第二阵列垂直。
根据本公开的实施例，一部分探测器模块分别构造成侧部阵列4及底部阵列5；其中，侧部阵列4设置在所述支架6的内侧侧面，底部阵列设置在支架6的内侧底面， 第一X射线11的射线张角覆盖侧部阵列4及底部阵列5。
在一种示意性的实施例中，侧部阵列4包括但不限于由多个探测器模块沿列竖直方向排列形成的探测器模块组。
在一种示意性的实施例中，底部阵列5包括但不限于由多个探测器模块沿行水平方向排列形成的探测器模块组。
根据本公开的实施例，另一部分探测器模块构造成顶部阵列3；其中，顶部阵列3设置在支架6的内侧顶面，第二X射线的射线张角覆盖所述侧部阵列4及顶部阵列3。
在一种示意性的实施例中，顶部阵列3包括但不限于由多个探测器模块沿行水平方向排列形成的探测器模块组。
根据本公开的实施例，第二X射线的射线张角还覆盖一部分底部阵列5。
在一种示意性的实施例中，第二X射线加速器2设置在未设置探测器模块的支架6的侧部，并且位于偏离中心位置的第一X射线加速器1的一侧。
例如，在第一X射线加速器1设置在支架6顶部位于中心位置左侧的位置的情况下，第二X射线加速器2设置在支架6左侧部的下部位置，如图1所示。例如，在第一X射线加速器1设置在支架6顶部位于中心位置右侧的位置的情况下，第二X射线加速器2设置在支架6右侧部的下部位置。
图3是根据本公开的一种示意性实施例的安检方法的流程图；图4是根据本公开的一种示意性实施例的X射线的脉冲信号的示意图，其中，4A表征第一X射线加速器输出的脉冲信号，4B表征第二X射线加速器输出的脉冲信号，4C表征信号采集模块采集并标记后的脉冲信号；图5是根据本公开的一种示意性实施例的第一X射线所形成的透射图像；图6是根据本公开的一种示意性实施例的第二X射线所形成的透射图像。
本公开的另一方面还提供一种安检方法，如图3至图6所示，包括：第一X射线加速器1及第二X射线加速器2依次间隔向检查通道辐射第一X射线11及第二X射线21；以及探测器模块采集第一X射线11和第二X射线21并分别生成数据包。
在一种示意性的实施例中，第一X射线加速器1和第二X射线加速器2按照既定频率、时序间隔分别辐射第一X射线11(含射线束)和第二X射线21(含射线束)。
根据本公开的实施例，如图4所示，探测器模块采集第一X射线11和第二X射线21并分别生成数据包，包括：第一X射线加速器1及第二X射线加速器2在向检 查通道辐射第一X射线11及第二X射线21的同时还向探测器模块输出同步脉冲信号和/或图像标记信号；探测器模块依据同步脉冲信号采集第一X射线11和第二X射线21，并依据图像标记信号将采集到的数据包标记为第一数据包和第二数据包。
在一种示意性的实施例中，由第一X射线加速器1(如4A)、第二X射线加速器2(如4B)和/或向探测器模块输出的同步脉冲信号及图像标记信号输出至信号采集模块，信号采集模块根据同步脉冲信号采集来自第一X射线加速器1的脉冲信号(如4A)和来自第二X射线加速器2的脉冲信号4B(如4B)，并将采集到的数据包打上相应的X射线加速器的标记，形成带有加速器脉冲来源标记的采集信号(如4C)。
根据本公开的实施例，如图5和图6所示，安检方法还包括：依据第一数据包和第二数据包对每个数据包中的数据进行分图拼接，分别生成第一透射图像(图5)和第二透射图像(图6)。
图7是根据本公开的一种示意性实施例的安检系统的原理图。
本公开的另一方面还提供一种安检系统，用于对移动中的车辆71进行检测。如图7所示，安检系统包括：安检设备以及配置成能够检测所述车辆71的速度的速度检测设备8。速度检测设备8包括：设置在所述安检设备的上游的第一检测装置81和第二检测装置82，第一检测装置81和第二检测装置82间隔设置。其中，第一检测装置81和第二检测装置82配置成在车辆71通过第二检测装置82时得出车辆轮廓和检测车辆的车厢离开第二检测装置82，通过第一检测装置81和第二检测装置82之间的距离除以车辆通过第一检测装置81和第二检测装置82的时间间隔测量得到车辆71的速度，使用测量的车辆71的速度得出驾驶室的尺寸，从而确定移动的车辆71的驾驶室在检查通道的位置、以及进而安检设备的第一X射线加速器1及第二X射线加速器2的出束时间，以便在驾驶室通过所述安检设备后第一X射线加速器1及所述第二X射线加速器2依次间隔出束。
在一种示意性的实施例中，速度检测设备8包括第一检测装置81和第二检测装置82。其中，第二检测装置82位于安检设备的上游位置，配置成在车辆通过第二检测装置82时得出车辆轮廓和检测车辆的车厢离开第二检测装置82，通过第一检测装置81和第二检测装置82之间的距离除以车辆通过第一检测装置81和第二检测装置82的时间间隔测量得到车辆的速度，使用测量的车辆的速度得出驾驶室的尺寸，从而确定移动的车辆的驾驶室在检查通道的位置、以及进而确定第一X射线加速器和第二X射线 加速器的出束时间，以便在驾驶室通过第一X射线加速器和第二X射线加速器后分别出束。
本实施例中，通过第二检测装置82得出车辆轮廓包括检测车辆的车头和找到车辆驾驶室与车厢的分界。
详细地，第二检测装置82布置在第一检测装置81的上游(相对于车辆的行进方向)，第一检测装置81位于第一X射线加速器和第二X射线加速器的上游位置，用于在车辆通过第二检测装置82时得出车辆轮廓尺寸，包括检测车辆的车头、找到车辆驾驶室与车厢的分界以及检测车辆车厢离开第二检测装置82，并与第二检测装置82一起测量车辆的速度，即通过第一检测装置81和第二检测装置82之间的距离除以车辆通过第一检测装置81和第二检测装置82的时间间隔测量车辆的速度，从而得出驾驶室和车厢的长度。
进一步地，第二检测装置82发射垂直于检查通道的光，车辆到达第二检测装置82时，第二检测装置82发射的光被车辆反射，第二检测装置82接收到车辆反射的光即可以判断车辆通过；车辆继续前进，第一检测装置81发射的光幕照射到前进的车辆，从而可以检测到车辆车头的到达，从而根据第一检测装置81和第二检测装置82之间的距离，以及安检设备记录的车头先后到达第二检测装置82和第一检测装置81的时间间隔计算车辆的速度。此处，第二检测装置82可以包括光感应器，车辆通过第二检测装置82时，光感应器检测车辆到达。第二检测装置82可以不必具有测速功能，甚至不必沿垂直检查通道的方向扫描构成光幕，仅发射一光束横穿检查通道，当车辆的车头被第二检测装置82的光束照射时，第二检测装置82即可以判断车头的到达；也可以在检查通道的对侧设置检测器检测光束，当车辆阻挡光束的时候即可以判断车辆的到达。在本实施例中，第二检测装置82和第一检测装置81共同完成车辆的测速。
更进一步地，基于第二检测装置82至支架的距离，在计算出车辆的速度并且确定车头达到第二检测装置82的时间之后，可以通过计时判断车辆的位置：车辆的车头通过第二检测装置82后的预定时间T1后车辆驾驶室离开第一X射线加速器及第二X射线加速器(支架6)，此时允许第一X射线加速器及第二X射线加速器依次间隔出束。
本领域技术人员可以理解，本方法的各个实施例和/或权利要求中记载的特征可以进行多种组合或/或结合，即使这样的组合或结合没有明确记载于本方法中。特别地，在不脱离本方法精神和教导的情况下，本方法的各个实施例和/或权利要求中记载的特 征可以进行多种组合和/或结合。所有这些组合和/或结合均落入本方法的范围。
以上对本公开的实施例进行了描述。但是，这些实施例仅仅是为了说明的目的，而并非为了限制本公开的范围。尽管在以上分别描述了各实施例，但是这并不意味着各个实施例中的措施不能有利地结合使用。本公开的范围由所附权利要求及其等同物限定。不脱离本公开的范围，本领域技术人员可以做出多种替代和修改，这些替代和修改都应落在本公开的范围之内。

Claims (10)

  1. 一种安检设备，其特征在于，包括：
    支架(6)，限定沿第一方向延伸的检查通道；
    第一X射线加速器(1)，设置在所述支架(6)的顶部的偏移所述检查通道的中心线的位置，配置成向下朝向所述检查通道辐射第一X射线，用以对通过所述检查通道的待检物品(7)进行检查；
    第二X射线加速器(2)，配置成向所述检查通道辐射第二X射线用以对通过所述检查通道的待检物品(7)进行检查；以及
    探测器装置，包括：
    多个探测器模块，设置在所述支架(6)上与所述第一X射线加速器(1)和所述第二X射线加速器(2)面对的位置，用于接收至少一部分所述第一X射线和/或第二X射线，以形成所述待检物品(7)的透射图像；
    其中，所述第一X射线(11)、第二X射线(21)及多个所述探测器模块所形成的中心面构造成位于同一平面内。
  2. 根据权利要求1所述的安检设备，其特征在于，所述探测器装置还包括信号采集模块，和所述第一X射线加速器(1)、第二X射线加速器(2)及多个所述探测器模块电连接，用以将所述探测器模块接收的由第一X射线(11)和第二X射线(21)所产生的信号进行标记。
  3. 根据权利要求1所述的安检设备，其特征在于，多个所述探测器模块平铺设置构造成行、列或阵列；
    其中，平铺表征为每一行、列或阵列中的每个所述探测器模块的接收端均位于同一平面内。
  4. 根据权利要求1至3中任一所述的安检设备，其特征在于，一部分所述探测器模块分别构造成侧部阵列(4)及底部阵列(5)；
    其中，所述侧部阵列(4)设置在所述支架(6)的内侧侧面，所述底部阵列(5)设置在所述支架(6)的内侧底面，所述第一X射线(11)的射线张角覆盖所述侧部阵列(4)及底部阵列(5)。
  5. 根据权利要求4所述的安检设备，其特征在于，另一部分所述探测器模块构造成顶部阵列(3)；
    其中，所述顶部阵列(3)设置在所述支架(6)的内侧顶面，所述第二X射线的射线张角覆盖所述侧部阵列(4)及顶部阵列(3)。
  6. 根据权利要求5所述的安检设备，其特征在于，所述第二X射线(21)的射线张角还覆盖一部分所述底部阵列(5)。
  7. 一种安检方法，应用于如权利要求1至6中任一所述的安检设备，其特征在于，包括：
    第一X射线加速器(1)及第二X射线加速器(2)依次间隔向检查通道辐射第一X射线(11)及第二X射线(21)；以及
    使述探测器模块采集所述第一X射线(11)和第二X射线(21)并分别生成数据包。
  8. 根据权利要求7所述的安检方法，其特征在于，所述探测器模块采集所述第一X射线(11)和第二X射线(21)并分别生成数据包，包括：
    所述第一X射线加速器(1)及第二X射线加速器(2)在向检查通道辐射第一X射线(11)及第二X射线(21)的同时还向所述探测器模块输出同步脉冲信号和/或图像标记信号；
    探测器模块依据所述同步脉冲信号采集第一X射线(11)和第二X射线(21)，并依据所述图像标记信号将采集到的数据包标记为第一数据包和第二数据包。
  9. 根据权利要求8所述的安检方法，其特征在于，所述安检方法还包括：
    依据所述第一数据包和第二数据包对每个数据包中的数据进行分图拼接，分别生成第一透射图像和第二透射图像。
  10. 一种安检系统，应用于对移动中的车辆进行检测，其特征在于，包括：
    如权利要求1至6中任一所述的安检设备；以及
    速度检测设备(8)，配置成能够检测所述车辆(71)的速度，包括：
    第一检测装置(81)，设置在所述安检设备的上游；以及
    第二检测装置(82)，设置在所述安检设备的上游，并与所述第一检测装置(81)间隔设置；
    其中，所述第一检测装置(81)和第二检测装置(82)，配置成在车辆通过第二检测装置(82)时得出车辆轮廓和检测车辆的车厢，离开第二检测装置(82)，通过第二检测装置(82)和第一检测装置(81)之间的距离除以车辆通过第二检测装置(82)和第一检测装置(81)的时间间隔测量车辆的速度，使用测量的车辆的速度得出驾驶室的尺寸，从而确定移动的车辆的驾驶室在检查通道的位置，进而确定第一X射线加速器(1)和第二X射线加速器(2)的出束时间，以便在驾驶室通过第一X射线加速器(1)和第二X射线加速器(2)后分别出束。
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