Hazardous article inspection device and method based on hyperspectral imaging technology

Abstract

The invention discloses a dangerous goods inspection device and method based on a hyperspectral imaging technology, and relates to the technical field of dangerous goods inspection.The device comprises a bearing seat, a set of supporting legs are installed on the bottom face of the bearing seat, and a rotating groove is formed in the upper surface of the bearing seat; through cooperative arrangement of the bearing seat, the placement disc, the motor I, the automatic overturning assembly, the supporting frame, an LED illuminating lamp, an electric push rod, a mounting bracket and a hyperspectral imager, to-be-inspected dangerous goods are placed on the upper surface of the placement disc, and the arranged hyperspectral imager is utilized to inspect the dangerous goods, so that the inspection efficiency is improved, and the inspection efficiency is improved. The first motor works to drive the containing disc to rotate, the dangerous goods can be conveniently and comprehensively inspected, the dangerous goods can be conveniently and automatically overturned by means of the arranged automatic overturning assembly, the goods do not need to be manually overturned, and the working efficiency of inspecting the dangerous goods can be improved; and the risk generated when a worker makes contact with dangerous goods is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of dangerous goods inspection, and specifically provides a dangerous goods inspection device and method based on hyperspectral imaging technology. Background Art

[0002] The existence of dangerous goods seriously threatens social security and people's lives and property. Inspecting dangerous goods is a necessary means to ensure public safety and maintain the stable operation of society. Hyperspectral imaging technology is a cutting-edge technology that integrates multiple disciplines such as optics, electronics, and computer science. It decomposes the light reflected or emitted by an object into a continuous spectral band, obtaining extremely rich spectral information, and accurately distinguishing the types and characteristics of substances. Given the powerful substance recognition ability of hyperspectral imaging technology, its application in the field of dangerous goods inspection has great potential. A dangerous goods inspection device based on hyperspectral imaging technology is expected to utilize the high resolution and accurate recognition characteristics of this technology to quickly and accurately detect various hidden dangerous goods, bringing higher efficiency and accuracy to the security inspection work, and greatly improving the level of public safety guarantee.

[0003] However, the existing dangerous goods inspection devices based on hyperspectral imaging technology still have certain defects when in use. To ensure the accuracy of inspecting items, a comprehensive inspection of dangerous goods is required during the inspection. The existing dangerous goods inspection devices based on hyperspectral imaging technology cannot automatically flip the items to be inspected during use. Instead, manual labor or tools are needed to flip the items, which reduces the work efficiency of inspecting dangerous goods and increases the risk when staff come into contact with dangerous goods. Therefore, it is of great significance to develop a dangerous goods inspection device and method based on hyperspectral imaging technology. Summary of the Invention

[0004] The purpose of the present invention is to make up for the deficiencies of the existing technology and provide a dangerous goods inspection device based on hyperspectral imaging technology. It can automatically flip the items to be inspected without manual flipping of the items, which can improve the work efficiency of inspecting dangerous goods and reduce the risk when staff come into contact with dangerous goods.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A dangerous goods inspection device based on hyperspectral imaging technology, the device includes a bearing seat, a set of support legs are installed on the bottom surface of the bearing seat, a rotating groove is opened on the upper surface of the bearing seat, a placing plate is arranged inside the rotating groove, a motor one is fixedly embedded on the bottom surface of the bearing seat, and the output end of the motor one is connected to the placing plate. An automatic flipping assembly is installed on the upper surface of the placing plate. The automatic flipping assembly includes a limiting frame one fixedly connected to the upper surface of the placing plate. A motor two is fixedly embedded on the upper surface of the limiting frame one. The output end of the motor two is installed with a threaded rod one, and the bottom end of the threaded rod one is rotatably connected to the inner wall of the limiting frame one. A moving block is threadedly connected to the outer surface of the threaded rod one. A support frame is installed on the upper surface of the bearing seat. Two LED lighting lamps are installed on the inner wall of the support frame. An electric push rod is fixedly embedded on the upper surface of the support frame. The output end of the electric push rod is installed with an installation bracket. A hyperspectral imager is arranged inside the installation bracket. An installation assembly is installed inside the installation bracket.

[0006] Further, an annular groove one is opened on the inner bottom wall of the rotating groove. A set of slider one is slidably connected to the inner wall of the annular groove one, and the slider one is connected to the placing plate.

[0007] Furthermore, a stabilizing bracket is installed on the outer surface of the moving block. A motor three is arranged inside the stabilizing bracket, and the motor three is connected to the moving block. The output end of the motor three is installed with a limiting frame two.

[0008] Furthermore, a motor four is fixedly embedded on the outer surface of the limiting frame two. The output end of the motor four is installed with a positive and negative lead screw. The end of the positive and negative lead screw away from the motor four is rotatably connected to the inner wall of the limiting frame two. Two clamping strips are threadedly connected to the outer surface of the positive and negative lead screw. A protective pad is installed on the side surface of each of the two clamping strips that are close to each other.

[0009] Furthermore, two guiding grooves are opened on the inner wall of the limiting frame two. Two guiding blocks are slidably connected to the inner walls of the two guiding grooves, and the guiding blocks are connected to the clamping strips.

[0010] Furthermore, an annular groove two is opened on the outer surface of the stabilizing bracket. Two slider two are slidably connected to the inner wall of the annular groove two, and the slider two are connected to the limiting frame two.

[0011] Furthermore, the installation assembly includes two threaded rods two threadedly connected to the outer surface of the installation bracket. The ends of the two threaded rods two that are close to each other are rotatably connected to a clamping plate, and the clamping plate is in contact with the hyperspectral imager. Rotating blocks are installed at the ends of the two threaded rods two that are away from each other.

[0012] Further, the installation component further includes a chute formed on the inner wall of the installation bracket. Two sliders three are slidably connected to the inner wall of the chute, and the slider three is connected to the clamping plate.

[0013] A method for inspecting dangerous goods based on hyperspectral imaging technology is applicable to the above-mentioned device for inspecting dangerous goods based on hyperspectral imaging technology. The method includes the following steps:

[0014] Place the dangerous goods to be inspected on the upper surface of the placement tray. By rotating the rotating block, adjust the threaded rod two in the installation component to make the clamping plate clamp the hyperspectral imager, and check the states of devices such as motors and electric push rods.

[0015] Turn on the LED lighting lamp to provide sufficient light for inspection. Start motor one, and motor one drives the placement tray to rotate in the rotating groove. The slider one in the annular groove one assists the placement tray to rotate smoothly. At the same time, start the electric push rod to push the installation bracket and the hyperspectral imager to a suitable height. The hyperspectral imager starts to preliminarily inspect the dangerous goods on the placement tray and obtains the spectral information on the surface of the dangerous goods.

[0016] If it is necessary to flip the dangerous goods for a comprehensive inspection, start the automatic flipping component. First, start motor four, and motor four drives the forward and reverse screw rod to rotate, so that the two clamping strips approach each other under the guiding action of the guiding block and the guiding groove, and use the protective pad to clamp the dangerous goods.

[0017] Then start motor two, and motor two drives the threaded rod one to rotate, so that the moving block drives the dangerous goods to rise. During the rising process, start motor three, and motor three drives the limiting frame two to rotate around the stable bracket. The slider two in the annular groove two assists the limiting frame two to rotate smoothly. When the limiting frame two rotates 180°, motor two reverses, and the moving block drives the dangerous goods to descend to the placement tray to complete the flipping.

[0018] The hyperspectral imager conducts a re-inspection on the flipped dangerous goods to obtain the spectral information on the other side of the dangerous goods, and completes the comprehensive inspection work on the dangerous goods.

[0019] Compared with the prior art, the device and method for inspecting dangerous goods based on hyperspectral imaging technology have the following beneficial effects:

[0020] 1. The present invention is provided with a cooperation among a bearing seat, a placement tray, a first motor, an automatic flipping assembly, a support frame, an LED lighting lamp, an electric push rod, a mounting bracket and a hyperspectral imager. The dangerous goods to be inspected are placed on the upper surface of the placement tray. By using the provided hyperspectral imager, the dangerous goods can be inspected. When the first motor works, it can drive the placement tray to rotate, which is convenient for comprehensively inspecting the dangerous goods. By using the provided automatic flipping assembly, the dangerous goods can be automatically flipped conveniently without manual flipping, which can improve the working efficiency of inspecting the dangerous goods and reduce the risk generated when the staff comes into contact with the dangerous goods.

[0021] 2. The present invention is provided with a cooperation among a first limiting frame, a second motor, a first threaded rod, a moving block, a stabilizing bracket, a third motor, a second limiting frame, a fourth motor, a forward and reverse lead screw, a clamping strip, a protective pad, a guiding groove, a guiding block, a second annular groove and a second slider. When it is necessary to flip the dangerous goods, first start the fourth motor. When the fourth motor works, it can drive the forward and reverse lead screw to rotate, so as to drive the two clamping strips to approach each other, and clamp the dangerous goods placed on the upper surface of the placement tray. Then start the second motor. When the second motor works, it can drive the first threaded rod to rotate, so that the moving block can drive the clamped article to move upward. At the same time, the third motor works to drive the second limiting frame to rotate. After the second limiting frame is flipped, the second motor reverses to put down the clamped article, completing the automatic flipping of the article.

[0022] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 is a three-dimensional structural schematic diagram of the bearing seat in the present invention;

[0026] Figure 3 is a three-dimensional structural schematic diagram of the automatic flipping assembly in the present invention;

[0027] Figure 4 for the present inventionFigure 3 Schematic enlarged view of the structure at position A in the [device / component name];

[0028] Figure 5 Schematic three - dimensional structure view of the moving block in the present invention;

[0029] Figure 6 Schematic three - dimensional structure view of the installation component in the present invention;

[0030] Figure 7 Schematic flow chart of a method for inspecting dangerous goods based on hyperspectral imaging technology.

[0031] In the figure: 1, bearing seat; 2, support leg; 3, rotation groove; 4, placement plate; 5, motor 1; 6, automatic flipping assembly; 601, limit frame 1; 602, motor 2; 603, threaded rod 1; 604, moving block; 605, stable support; 606, motor 3; 607, limit frame 2; 608, motor 4; 609, positive and negative lead screw; 610, clamping strip; 611, protective pad; 612, guide groove; 613, guide block; 614, annular groove 2; 615, slider 2; 7, support frame; 8, LED lighting lamp; 9, electric push rod; 10, installation bracket; 11, hyperspectral imager; 12, installation component; 121, threaded rod 2; 122, clamping plate; 123, rotating block; 124, chute; 125, slider 3; 13, annular groove 1; 14, slider 1. Detailed implementation manners

[0032] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present invention as follows.

[0033] Embodiment 1

[0034] Refer to Figures 1 - 6 , the bearing seat 1 serves as the basic support structure of the entire device. A group of support legs 2 are evenly installed on its bottom surface and are fixedly connected by bolts to ensure the device is placed stably. A rotation groove 3 is provided on the upper surface of the bearing seat 1. The placement plate 4 can freely rotate in the rotation groove 3 through the adaptation relationship with the rotation groove 3. An annular groove 13 is provided on the bottom wall of the rotation groove 3, and a group of sliders 14 connected to the bottom surface of the placement plate 4 are embedded in the annular groove 13 and can slide therein. This connection method makes the rotation of the placement plate 4 more stable, reducing shaking and friction.

[0035] The motor 1 is fixedly embedded in the bottom surface of the bearing seat 1 by bolts, and its output shaft passes through the bearing seat 1 and is rigidly connected to the central position of the placement plate 4 through a coupling. When the motor 1 is started, it can directly drive the placement plate 4 to rotate in the rotation groove 3.

[0036] On the upper surface of the placement tray 4, a limit frame 601 is installed by welding, serving as the basic frame of the automatic flipping assembly 6. The second motor 602 is fixedly embedded on the upper surface of the limit frame 601. The output shaft of the second motor 602 is connected to the top end of the first threaded rod 603 through a coupling. The bottom end of the first threaded rod 603 is rotationally connected to the inner wall of the limit frame 601 through a bearing. A moving block 604 is threadedly connected to the outer surface. When the second motor 602 rotates, it drives the first threaded rod 603 to rotate, thereby enabling the moving block 604 to perform linear up-and-down movement along the first threaded rod 603.

[0037] A stabilizing bracket 605 is welded to the outer surface of the moving block 604. The third motor 606 is fixedly installed inside the stabilizing bracket 605 through bolts. The output shaft of the third motor 606 is key-connected to the limit frame 607. An annular groove 614 is formed on the outer surface of the stabilizing bracket 605. Two sliding blocks 615 connected to the inner wall of the limit frame 607 are embedded in the annular groove 614 and can slide. When the third motor 606 is started, it can drive the limit frame 607 to rotate smoothly around the stabilizing bracket 605.

[0038] The fourth motor 608 is fixedly embedded on the outer surface of the limit frame 607 through bolts. The output shaft of the fourth motor 608 is connected to the left-right threaded rod 609 through a coupling. The end of the left-right threaded rod 609 far from the fourth motor 608 is rotationally connected to the inner wall of the limit frame 607 through a bearing. Two clamping strips 610 are threadedly connected to the outer surface. Two guiding grooves 612 are formed on the inner wall of the limit frame 607. Two guiding blocks 613 are respectively welded to the clamping strips 610, and the guiding blocks 613 can slide in the guiding grooves 612. When the fourth motor 608 rotates, the left-right threaded rod 609 drives the two clamping strips 610 to approach or move away from each other under the guiding action of the guiding blocks 613 and the guiding grooves 612, realizing the clamping and loosening of dangerous items.

[0039] If it is found that the dangerous item needs to be flipped and inspected after the preliminary inspection, start the automatic flipping assembly 6. First, start the fourth motor 608. The fourth motor 608 drives the left-right threaded rod 609 to rotate. Due to the special thread structure of the left-right threaded rod 609, the two clamping strips 610 approach each other under the guiding action of the guiding blocks 613 and the guiding grooves 612, gently clamping the dangerous item with the protective pad 611.

[0040] Then start the second motor 602. The second motor 602 drives the first threaded rod 603 to rotate, causing the moving block 604 to move upward along the first threaded rod 603, thereby lifting the dangerous item from the placement tray 4. After the dangerous item rises to a certain height, start the third motor 606. The third motor 606 drives the limit frame 607 to rotate 180° around the stabilizing bracket 605. At this time, the sliding blocks 615 slide in the annular groove 614 to ensure the smooth rotation of the limit frame 607.

[0041] Finally, the second motor 602 rotates in reverse to drive the moving block 604 to descend, and the flipped dangerous goods are placed back on the placement tray 4 to complete the automatic flipping operation. After that, the preliminary inspection process is started again to collect spectral information on the other side of the dangerous goods.

[0042] On the upper surface of the bearing seat 1, a support frame 7 is installed by bolts. The support frame 7 has a portal structure to provide support for other components. Two LED lighting lamps 8 are installed on the inner wall of the support frame 7 by bolts. The light emitted by the LED lighting lamps 8 can evenly illuminate the dangerous goods on the placement tray 4, providing good lighting conditions for the detection of the hyperspectral imager 11.

[0043] An electric push rod 9 is fixedly embedded on the upper surface of the support frame 7 by bolts. The output end of the electric push rod 9 is connected to the mounting bracket 10 by bolts. The electric push rod 9 can push the mounting bracket 10 to move up and down through the telescopic movement of the telescopic rod, so as to adjust the height of the hyperspectral imager 11 inside the mounting bracket 10.

[0044] The mounting bracket 10 is a hollow frame structure, and the hyperspectral imager 11 is placed inside. The mounting component 12 is used to fix the hyperspectral imager 11. It includes two second threaded rods 121 threadedly connected to the outer surface of the mounting bracket 10. One end of the second threaded rods 121 close to each other is rotatably connected to the clamping plate 122 through a bearing. The rotating block 123 is fixed to the end of the second threaded rod 121 away from the clamping plate 122. A chute 124 is opened on the inner wall of the mounting bracket 10. Two third sliders 125 are welded to the clamping plate 122, and the third sliders 125 can slide in the chute 124. By rotating the rotating block 123, the telescopic length of the second threaded rod 121 can be adjusted to clamp or loosen the hyperspectral imager 11 with the clamping plate 122.

[0045] When it is necessary to inspect the dangerous goods, first place the dangerous goods on the placement tray 4. The operator turns on the LED lighting lamps 8 to provide sufficient and uniform light for the inspection area. Then start the first motor 5. The first motor 5 drives the placement tray 4 to rotate in the rotating groove 3 at a stable speed. At the same time, the first slider 14 slides in the first annular groove 13 to ensure the stable rotation of the placement tray 4.

[0046] Start the electric push rod 9. According to the height and shape of the dangerous goods, adjust the height of the mounting bracket 10 and the hyperspectral imager 11 to make the hyperspectral imager 11 in the best detection position. The hyperspectral imager 11 uses its function of decomposing light and collecting spectral information to scan the surface of the dangerous goods during the rotation process and obtain the spectral information on the surface of the dangerous goods.

[0047] Embodiment 2

[0048] See Figure 7 , and the usage process of the dangerous goods inspection method based on hyperspectral imaging technology is elaborated in detail in this embodiment.

[0049] The operator first carefully places the dangerous goods to be inspected at the center position on the upper surface of the placement tray 4, ensuring that the goods are placed stably to avoid affecting the acquisition of spectral information due to shaking during the subsequent inspection process.

[0050] Rotate the rotating block 123 to adjust the second threaded rod 121 in the mounting assembly 12. As the second threaded rod 121 rotates, the clamping plate 122 gradually approaches the hyperspectral imager 11 under the guiding action of the third slider 125 and the chute 124 until the hyperspectral imager 11 is firmly clamped. At the same time, check whether the connection lines of the hyperspectral imager 11 are stable to ensure its normal operation.

[0051] Debug the motors, namely the first motor 5, the second motor 602, the third motor 606, the fourth motor 608 and the electric push rod 9. Check whether the power supply lines of the motors are correctly connected, whether the rotation directions of the motors meet the expectations, check whether the telescopic rod of the electric push rod 9 can extend and retract normally and whether the stroke meets the inspection requirements. At the same time, check whether the LED lighting lamp 8 can emit light normally and whether the light intensity is uniform.

[0052] The operator turns on the LED lighting lamp 8, and the LED lighting lamp 8 emits soft and uniform light, illuminating the entire inspection area and providing good lighting conditions for the detection of the hyperspectral imager 11.

[0053] Start the first motor 5. The output shaft of the first motor 5 drives the placement tray 4 to rotate stably in the rotating groove 3 at a set speed. At the same time, the first slider 14 in the first annular groove 13 assists the rotation of the placement tray 4 to reduce friction and shaking.

[0054] According to the approximate height of the dangerous goods, the operator starts the electric push rod 9 through the control panel. The telescopic rod of the electric push rod 9 extends or retracts, pushing the mounting bracket 10 and the hyperspectral imager 11 to move up and down, adjusting the hyperspectral imager 11 to an appropriate height so that the best detection distance is maintained between the hyperspectral imager 11 and the dangerous goods.

[0055] When the placement tray 4 rotates stably and the height of the hyperspectral imager 11 is adjusted appropriately, the hyperspectral imager 11 starts to work. It performs a full - range scan on the surface of the dangerous goods during the rotation process, decomposes the light reflected by the dangerous goods into continuous spectral bands, and collects the intensity information of each spectral band. By analyzing the intensity information of the spectral bands, it is convenient to inspect the dangerous goods.

[0056] If the preliminary inspection results indicate that the dangerous item needs to be turned over for inspection, the operator activates the automatic turning-over component 6. First, the fourth motor 608 is activated. The fourth motor 608 drives the forward and reverse screw rod 609 to rotate. Under the guiding action of the guiding block 613 and the guiding groove 612, the two clamping strips 610 approach each other, and the dangerous item is gently clamped using the protective pad 611 to ensure that the item will not be damaged during the turning-over process.

[0057] Then, the second motor 602 is activated. The second motor 602 drives the first threaded rod 603 to rotate, causing the moving block 604 to move upward along the first threaded rod 603, lifting the dangerous item from the placement tray 4 to a certain height.

[0058] After the dangerous item rises to the appropriate position, the third motor 606 is activated. The third motor 606 drives the second limiting frame 607 to rotate 180° around the stable support 605. During the rotation process, the second slider 615 slides within the second annular groove 614 to ensure the smooth rotation of the second limiting frame 607.

[0059] After the third motor 606 finishes rotating, the second motor 602 rotates in reverse, driving the moving block 604 to descend, and placing the turned-over dangerous item back on the placement tray 4 smoothly.

[0060] The first motor 5 is activated again to continue rotating the placement tray 4. At the same time, according to the state of the turned-over dangerous item, the electric push rod 9 is fine-tuned again to ensure that the hyperspectral imager 11 is in the best detection position. The hyperspectral imager 11 scans the surface of the turned-over dangerous item again to collect the spectral information on the other side of the dangerous item.

[0061] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to obtain equivalent embodiments with equivalent changes. However, as long as it does not depart from the technical content of the present invention, any brief modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A dangerous goods inspection device based on hyperspectral imaging technology, characterized in that: The device comprises a bearing seat (1), a group of supporting legs (2) are installed on the bottom surface of the bearing seat (1), a rotating groove (3) is opened on the upper surface of the bearing seat (1), a placement plate (4) is arranged inside the rotating groove (3), a motor (5) is fixedly embedded on the bottom surface of the bearing seat (1), and the output end of the motor (5) is connected to the placement plate (4), an automatic flipping component (6) is installed on the upper surface of the placement plate (4), and the automatic flipping component (6) comprises a limiting frame (601) fixedly connected to the upper surface of the placement plate (4), a motor (602) is fixedly embedded on the upper surface of the limiting frame (601), and the motor (602) A threaded rod (603) is installed at the output end, and the bottom end of the threaded rod (603) is rotatably connected to the inner wall of the limit frame (601); the outer surface of the threaded rod (603) is threadedly connected to a moving block (604); a support frame (7) is installed on the upper surface of the bearing seat (1); two LED lighting lamps (8) are installed on the inner wall of the support frame (7); an electric push rod (9) is fixedly embedded on the upper surface of the support frame (7); a mounting bracket (10) is installed at the output end of the electric push rod (9); a hyperspectral imager (11) is arranged inside the mounting bracket (10); and a mounting component (12) is installed inside the mounting bracket (10).

2. The dangerous goods inspection device based on hyperspectral imaging technology according to claim 1 is characterized in that: The inner bottom wall of the rotating groove (3) is provided with an annular groove (13), the inner wall of the annular groove (13) is slidably connected with a group of sliders (14), and the sliders (14) are connected to the placement plate (4).

3. The dangerous goods inspection device based on hyperspectral imaging technology according to claim 1 is characterized in that: The outer surface of the moving block (604) is installed with a stabilizing bracket (605), the interior of the stabilizing bracket (605) is provided with a motor three (606), and the motor three (606) is connected to the moving block (604), and the output end of the motor three (606) is installed with a limiting frame two (607).

4. The dangerous goods inspection device based on hyperspectral imaging technology according to claim 3 is characterized in that: The outer surface of the limit frame 2 (607) is fixedly embedded with a motor 4 (608), and the output end of the motor 4 (608) is installed with a positive and negative screw rod (609), and the end of the positive and negative screw rod (609) away from the motor 4 (608) is rotatably connected to the inner wall of the limit frame 2 (607), and the outer surface of the positive and negative screw rod (609) is threadedly connected to two clamping strips (610), and the side surfaces of the two clamping strips (610) close to each other are both installed with protective pads (611).

5. The dangerous goods inspection device based on hyperspectral imaging technology according to claim 4 is characterized in that: The inner wall of the second limiting frame (607) is provided with two guide grooves (612), and the inner walls of the two guide grooves (612) are both slidably connected with two guide blocks (613), and the guide blocks (613) are connected to the clamping strip (610).

6. The dangerous goods inspection device based on hyperspectral imaging technology according to claim 1 is characterized in that: The outer surface of the stabilizing bracket (605) is provided with an annular groove 2 (614), and the inner wall of the annular groove 2 (614) is slidably connected with two sliding blocks 2 (615), and the sliding blocks 2 (615) are connected to the limiting frame 2 (607).

7. The dangerous goods inspection device based on hyperspectral imaging technology according to claim 1 is characterized in that: The mounting assembly (12) comprises two threaded rods (121) threadedly connected to the outer surface of the mounting bracket (10), the ends of the two threaded rods (121) close to each other are rotatably connected to a clamping plate (122), and the clamping plate (122) is in contact with the hyperspectral imager (11), and the ends of the two threaded rods (121) away from each other are installed with a rotating block (123).

8. The dangerous goods inspection device based on hyperspectral imaging technology according to claim 7 is characterized in that: The mounting assembly (12) further comprises a slide groove (124) provided on the inner wall of the mounting bracket (10), the inner wall of the slide groove (124) being slidably connected to two sliders three (125), and the sliders three (125) are connected to the clamping plate (122).

9. A method for inspecting dangerous goods based on hyperspectral imaging technology, applicable to a device for inspecting dangerous goods based on hyperspectral imaging technology as described in claims 1-8, characterized in that: The method comprises the following steps: The dangerous goods to be inspected are placed on the upper surface of the placement plate (4), and the threaded rod 2 (121) in the installation assembly (12) is adjusted by rotating the rotating block (123) so that the clamping plate (122) clamps the hyperspectral imager (11), and the status of each motor, electric push rod (9) and other equipment is checked; Turn on the LED lighting lamp (8) to provide sufficient light for inspection, start the motor 1 (5), the motor 1 (5) drives the placement plate (4) to rotate in the rotation groove (3), the slider 1 (14) in the annular groove 1 (13) assists the placement plate (4) to rotate smoothly, and at the same time, start the electric push rod (9) to push the mounting bracket (10) and the hyperspectral imager (11) to a suitable height, and the hyperspectral imager (11) begins to perform a preliminary inspection of the dangerous goods on the placement plate (4) to obtain spectral information on the surface of the dangerous goods; If it is necessary to overturn the dangerous goods for a comprehensive inspection, the automatic overturning assembly (6) is started, and the motor four (608) is first started. The motor four (608) drives the forward and reverse screw rods (609) to rotate, so that the two clamping bars (610) are close to each other under the guidance of the guide block (613) and the guide groove (612), and the protective pad (611) is used to clamp the dangerous goods; Then, the second motor (602) is started, and the second motor (602) drives the first threaded rod (603) to rotate, so that the moving block (604) drives the dangerous goods to rise. During the rising process, the third motor (606) is started, driving the second limit frame (607) to rotate around the stable bracket (605), and the second slider (615) in the second annular groove (614) assists the second limit frame (607) to rotate smoothly. After the second limit frame (607) rotates 180 degrees, the second motor (602) is reversed, so that the moving block (604) drives the dangerous goods to descend to the placement plate (4), completing the flipping. The hyperspectral imager (11) re-inspects the flipped dangerous goods, obtains spectral information of the other side of the dangerous goods, and completes a comprehensive inspection of the dangerous goods.

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