Image acquisition system based on artificial intelligence

Abstract

The invention discloses an image acquisition system based on artificial intelligence, which relates to the field of image acquisition, and comprises a box body and a cloud server, a control mainboard is arranged in the box body, a spray washing mechanism is arranged below the control mainboard, and the control mainboard is connected with the cloud server through a wireless network. A storage unit is arranged in the cloud server and used for storing the entered license plate, a camera module, an image detection and recognition module, a wireless module and a voice reminding module are arranged in the control mainboard, and the camera shooting end of the camera module penetrates through the outer wall of the box body and extends to the outside. Starting a spray-washing mechanism to work, cleaning shelters on the license plate by the spray-washing mechanism, and then collecting, capturing and judging again; when the license plate of the vehicle is collected and captured, sheltering objects such as dust and leaves on the license plate can be cleaned, it is ensured that the license plate number is accurately read, and the recognition stability is improved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of image acquisition, and specifically to an image acquisition system based on artificial intelligence. Background Art

[0002] As the main means of visual information exchange, with the advent of the artificial intelligence era, artificial intelligence has been widely used in the detection and recognition of dynamic images, such as vehicle license plate recognition, with its powerful computing and data processing capabilities. The license plate image acquisition method and device described in the prior art include extracting the license plate image based on the moving vehicle image during the daytime; and acquiring the moving vehicle image under light compensation during the nighttime, and extracting the license plate image based on the acquired vehicle image.

[0003] When the above technology is applied to the automatic lifting device in residential areas, although it can avoid the problem of low recognition rate caused by ambient light during the license plate information extraction process and improve reading accuracy, when the captured license plate is blocked by leaves or dust, the recognition system is difficult to accurately read the license plate number, reducing the stability of recognition. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide an image acquisition system based on artificial intelligence to solve the technical problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An image acquisition system based on artificial intelligence includes a box and a cloud server, wherein a control mainboard is provided in the box, a spray washing mechanism is provided below the control mainboard, the control mainboard is connected to the cloud server via a wireless network, a storage unit is provided in the cloud server for storing the recorded license plate, the control mainboard is provided with a camera module, an image detection and recognition module, a wireless module and a voice reminder module, the camera end of the camera module extends through the outer wall of the box to the outside, the camera module collects and captures the license plate of an approaching vehicle, and sends the captured license plate image data to the image detection and recognition module for image processing and comparison with the license plate image stored in the storage unit to determine whether it belongs to the recorded vehicle, and when processing the license plate image, by identifying the letters and numbers of the license plate, when the letters and numbers are unclear or blocked, the spray washing mechanism is started to work, and the blocking objects on the license plate are cleared by the spray washing mechanism, and then the acquisition and capture and judgment are performed again; The spray washing mechanism consists of a water tank, a movable block, a rotating sleeve, an angle adjustment component and a nozzle. The water tank is arranged at the inner bottom of the box body, the movable block is arranged between the water tank and the control main board, electric slide rails are fixed to the inner walls on both sides of the box body, and the two sides of the movable block are slidably connected with the electric slide rails through slide seats. A through groove is provided in the movable block, the rotating sleeve is provided in the through groove, the nozzle is installed in the rotating sleeve, the actuator of the angle adjustment component is connected to the outer wall of the rotating sleeve, a sealing door is installed on the side of the box body close to the vehicle, a movable groove is provided on the top of the sealing door, the end of the nozzle extends out of the movable groove, and a distance sensor is installed on one side of the sealing door, and the distance sensor is wirelessly connected to the control main board.

[0006] Specifically, the image detection and recognition module includes an image reading unit, an image processing unit, an image comparison unit and an image judgment unit. The image reading unit is used to read the image collected by the camera module. The image processing unit performs smoothing on the read image, eliminates unnecessary high-frequency information in the image, retains important structural information, and extracts the license plate number features. The image comparison unit compares the extracted license plate number features with the license plate number entered in the storage unit. The image judgment unit determines whether it belongs to a foreign vehicle by comparing the structure; When the image reading unit finds that the license plate number is unclear when reading the image, the image judgment unit determines that the license plate is blocked by dust and leaves and sends a signal to start the spray cleaning mechanism, and the nozzle sprays water in the water tank to the license plate for cleaning.

[0007] Specifically, the movable block is provided with an L-shaped groove and a movable cavity on both sides of the through groove, the two ends of the L-shaped groove are respectively connected with the through groove and the inside of the box, a rotating hole is provided at the center of the groove top and the groove bottom of the through groove, and plug rods are welded on the upper and lower surfaces of the rotating sleeve, and the two plug rods are plugged into the rotating holes.

[0008] The technical solution is specific, the angle adjustment assembly includes a driving motor, the driving motor is installed on the lower surface of the movable block by bolts, the output end of the driving motor is fixedly connected to a rope winding roller, a pull rope is wound on the rope winding roller, the lower surface of the movable block is located on one side of the L-shaped groove and a fixed plate is welded, a first guide wheel is installed on the fixed plate, a second guide wheel is provided above the first guide wheel, both ends of the second guide wheel are rotatably connected to the groove wall of the L-shaped groove, movable seats are fixed to the tail ends of the outer walls on both sides of the rotating sleeve, the pull rope is connected to one movable seat through the first guide wheel and the second guide wheel), and a pull rod is installed on the other movable seat.

[0009] Specifically, the two movable seats are movably connected to the pull rod and the pull rope, a movable plate is provided inside the movable cavity, a return spring is fixedly connected to the end face of the movable plate, an end of the return spring is fixedly connected to the cavity wall of the movable cavity, and the end of the pull rod away from the movable seat is inserted into the movable cavity and fixedly connected to the end face of the movable plate.

[0010] Specifically, the top and bottom ends of the movable plate are embedded with balls, and the surface of each ball is in rolling contact with the cavity wall of the movable cavity.

[0011] Specifically, the bottom end of the rope winding roller is provided with a bottom plate, L-shaped plates are fixed on both sides of the bottom plate, the top ends of the two L-shaped plates are fixedly connected to the lower surface of the movable block, the bottom end of the rope winding roller is rotatably connected to the bottom plate, and the pull rope passes through the surface of an L-shaped plate.

[0012] Specifically, the tail end of the nozzle is connected to a telescopic tube, a pump body is fixed to the inner bottom of the water tank, an output port of the pump body is connected to a water supply hose, and the top end of the water supply hose passes through the water tank and is connected to the telescopic tube.

[0013] Specifically, ear plates are fixed to the outer walls of both sides of the nozzle, and the rotating sleeve is symmetrically provided with storage grooves, which match the ear plates. A pneumatic telescopic cylinder is symmetrically fixed to the end of the rotating sleeve away from the storage groove, and the telescopic end of the pneumatic telescopic cylinder passes through the tube body of the rotating sleeve and is fixedly connected to the ear plate. Both of the two pneumatic telescopic cylinders are connected to the control main board through wires.

[0014] Specifically, one side of the top of the water tank is connected to an L-shaped water supply pipe, and a baffle is installed on the side wall of the box body at the water supply pipe through bolts, and the outer surface of the baffle is flush with the surface of the box body.

[0015] In summary, the present invention mainly has the following beneficial effects: when collecting and capturing the license plate of a vehicle, the present invention can remove obstructions such as dust and leaves on the license plate, ensure accurate reading of the license plate number, and improve the stability of recognition; First, the camera module shoots the front end of the approaching vehicle and captures the license plate image. The captured image is then sent to the image detection and recognition module to read, smooth, and extract the license plate number features. The image is then compared with the license plate number recorded in the cloud server to determine whether it belongs to the recorded vehicle. During the image detection and recognition module processing of the image, if the license plate number is unclear or blocked, the electric slide rail is started to drive the movable block and the nozzle downward through the slide seat so that the nozzle can be at the same level as the license plate. Then the pump body works, so that water enters the telescopic tube from the water supply hose and is sprayed out from the nozzle. The sprayed water cleans the license plate. At the same time, the drive motor in the angle adjustment assembly works, and the pull rope is wound and relaxed through the reciprocating motion, so that the pull rope drives the rotating sleeve to swing in the through groove through the movable seat, and the swinging rotating sleeve drives the pull rod and the movable plate to move. The elasticity of the reset spring can reset the rotating sleeve when the pull rope is relaxed, and the swinging rotating sleeve can drive the nozzle to move synchronously, so that the nozzle can comprehensively wash the license plate, thereby increasing the washing range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a system block diagram of the present invention; Figure 2 This is a block diagram of the image detection and recognition module of the present invention; Figure 3 It is a schematic diagram of the device of the present invention; Figure 4 It is a front cross-sectional structural diagram of the present invention; Figure 5 It is a cross-sectional view of the movable block structure of the present invention; Figure 6 It is a schematic diagram of the rotating sleeve structure of the present invention; Figure 7 It is an enlarged view of point A of the present invention.

[0017] Description of the drawings: 1. Cloud server; 2. Control mainboard; 3. Box; 301. Sealed door; 302. Moving slot; 303. Baffle; 304. Water tank; 3041. Pump body; 3042. Water supply hose; 3043. Water supply pipe; 305. Electric slide rail; 4. Movable block; 401. Sliding seat; 402. Through slot; 4021. Rotating hole; 403. L-shaped slot; 404. Movable cavity; 405. Fixed plate; 5. Rotating sleeve; 501. Insert rod ; 502, storage slot; 503, movable seat; 6, angle adjustment assembly; 601, drive motor; 602, rope winding roller; 6021, L-shaped plate; 6022, bottom plate; 603, pull rope; 604, first guide wheel; 605, second guide wheel; 606, pull rod; 607, movable plate; 6071, ball bearing; 608, reset spring; 7, nozzle; 701, ear plate; 702, telescopic tube; 703, pneumatic telescopic cylinder; 8, distance sensor. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] The following describes an embodiment of the present invention based on its overall structure. Example

[0020] An automatic lifting bar system is provided on one side of the box body 3 in the present application. When it is determined that the vehicle is a vehicle of the residential area, the automatic lifting bar system cooperates to work. This is the prior art and will not be described in detail in this article.

[0021] See also Figure 1-7 As shown, an image acquisition system based on artificial intelligence includes a box body 3 and a cloud server 1. A control mainboard 2 is provided in the box body 3. A spray washing mechanism is provided below the control mainboard 2. The control mainboard 2 is connected to the cloud server 1 through a wireless network. A storage unit is provided in the cloud server 1 for storing the recorded license plate. A camera module, an image detection and recognition module, a wireless module and a voice reminder module are provided in the control mainboard 2. The camera end of the camera module penetrates the outer wall of the box body 3 and extends to the outside. The camera module collects and captures the license plate approaching the vehicle, and sends the captured license plate image data to the image detection and recognition module for image processing and comparison with the license plate image stored in the storage unit to determine whether it belongs to the recorded vehicle. When processing the license plate image, the letters and numbers of the license plate are identified. When the letters and numbers are unclear or blocked, the spray washing mechanism is started to work, and the blocking objects on the license plate are cleaned by the spray washing mechanism, and then the acquisition and capture and judgment are performed again; The image detection and recognition module includes an image reading unit, an image processing unit, an image comparison unit and an image judgment unit. The image reading unit is used to read the image collected by the camera module. The image processing unit performs smoothing processing on the read image, eliminates unnecessary high-frequency information in the image, retains important structural information, and extracts the features of the license plate number. The image comparison unit compares the extracted features of the license plate number with the license plate number entered in the storage unit. The image judgment unit determines whether it belongs to an alien vehicle by comparing the structure. When the image reading unit finds that the license plate number is unclear when reading the image, the image judgment unit determines that the license plate is blocked by dust and leaves and sends a signal to start the spray washing mechanism. The nozzle 7 sprays water in the water tank 304 to the license plate for washing. The spray washing mechanism is composed of a water tank 304, a movable block 4, a rotating sleeve 5, an angle adjustment component 6 and a nozzle 7. The water tank 304 is arranged at the inner bottom of the box body 3, the movable block 4 is arranged between the water tank 304 and the control main board 2, the inner walls of both sides of the box body 3 are fixed with electric slide rails 305, the two sides of the movable block 4 are slidably connected with the electric slide rails 305 through the slide seat 401, the movable block 4 is provided with a through groove 402, the rotating sleeve 5 is arranged in the through groove 402, the nozzle 7 is installed in the rotating sleeve 5, and the actuator of the angle adjustment component 6 is connected to the control main board 2. The outer wall of the rotating sleeve 5 is connected, a sealing door 301 is installed on the side of the box body 3 close to the vehicle, a movable groove 302 is opened at the top of the sealing door 301, the end of the nozzle 7 extends out of the movable groove 302, a distance sensor 8 is installed on one side of the sealing door 301, the distance sensor 8 is wirelessly connected to the control motherboard 2, an L-shaped water supply pipe 3043 is connected to the top side of the water tank 304, a baffle 303 is installed at the water supply pipe 3043 on the side wall of the box body 3 by bolts, and the outer surface of the baffle 303 is flush with the surface of the box body 3. The distance sensor 8 is provided with a distance range between the vehicle and the box 3, and the distance between the vehicle and the box 3 is judged by the distance sensor 8. When the vehicle is within the set range, a signal is sent to the control main board 2 to start the telescopic part to control the extension of the nozzle 7. When it is less than the set range, the telescopic part does not work. When it is greater than the set range, a signal is sent to the control main board 2 to start the voice reminder module, so that the driver can move the vehicle forward until it is within the set range, so that the sprayed water can clean the license plate.

[0022] When a vehicle stops in front of the barrier, the camera module first shoots the front end of the approaching vehicle to capture the license plate image, and then sends the captured image to the image detection and recognition module to read, smooth and extract the license plate number features, and compare it with the license plate number entered in the cloud server 1 to determine whether it belongs to the entered vehicle. In the process of image processing by the image detection and recognition module, when the license plate number is unclear or blocked, the electric slide rail 305 is started to control the slide seat 401 to move downward, and the downwardly moved slide seat 401 drives the movable block 4 to move, and the movable block 4 drives the rotating sleeve 5 and the angle adjustment component 6 to move downward synchronously through the through groove 402, and the rotating sleeve 5 drives the nozzle 7 to move, and the end of the nozzle 7 moves in the movable groove 302, so that it can be at the same level as the license plate; Then the pump body 3041 works, so that water enters the nozzle 7 from the water supply hose 3042 and is sprayed out. The sprayed water cleans the license plate. At the same time, the driving source in the angle adjustment component 6 works, and the rotating sleeve 5 is controlled by the actuator to swing in the through groove 402. The swinging rotating sleeve 5 can drive the nozzle 7 to move synchronously, so that the water sprayed by the nozzle 7 can comprehensively rinse the license plate and increase the range of rinsing. Therefore, the present application can clean up obstructions such as dust and leaves on the license plate when collecting and capturing the vehicle's license plate, ensure accurate reading of the license plate number, and improve the stability of recognition.

[0023] See also Figure 4 , Figure 5 and Figure 7 As shown, L-shaped grooves 403 and movable cavities 404 are respectively provided on both sides of the through groove 402 in the movable block 4, and the two ends of the L-shaped groove 403 are respectively connected with the through groove 402 and the inside of the box body 3, and a rotation hole 4021 is provided at the center of the groove top and the groove bottom of the through groove 402, and the upper and lower surfaces of the rotating sleeve 5 are welded with plug rods 501, and the two plug rods 501 are plugged and connected with the rotating holes 4021; The angle adjustment assembly 6 includes a driving motor 601, which is installed on the lower surface of the movable block 4 by bolts. The output end of the driving motor 601 is fixedly connected to a rope winding roller 602, and a pull rope 603 is wound on the rope winding roller 602. The lower surface of the movable block 4 is located on one side of the L-shaped groove 403 and is welded with a fixing plate 405. A first guide wheel 604 is installed on the fixing plate 405. A second guide wheel 605 is provided above the first guide wheel 604. Both ends of the second guide wheel 605 are rotatably connected to the groove wall of the L-shaped groove 403. The rotating sleeve 5 The tail ends of the outer walls on both sides are fixed with movable seats 503, the pull rope 603 is connected to one movable seat 503 through the first guide wheel 604 and the second guide wheel 605, and the pull rod 606 is installed on the other movable seat 503. The bottom end of the rope winding roller 602 is provided with a bottom plate 6022, and L-shaped plates 6021 are fixed on both sides of the bottom plate 6022. The top ends of the two L-shaped plates 6021 are fixedly connected to the lower surface of the movable block 4, the bottom end of the rope winding roller 602 is rotatably connected to the bottom plate 6022, and the pull rope 603 passes through the plate surface of one L-shaped plate 6021; The two movable seats 503 are movably connected to the pull rod 606 and the pull rope 603, and a movable plate 607 is provided inside the movable cavity 404. The end face of the movable plate 607 is fixedly connected to a reset spring 608, and the end of the reset spring 608 is fixedly connected to the cavity wall of the movable cavity 404. The end of the pull rod 606 away from the movable seat 503 is inserted into the movable cavity 404 and fixedly connected to the end face of the movable plate 607. The top and bottom ends of the movable plate 607 are embedded with balls 6071, and the surface of each ball 6071 is in rolling contact with the cavity wall of the movable cavity 404.

[0024] The driving motor 601 in the angle adjustment component 6 works, and the output end of the driving motor 601 drives the rope winding roller 602 to rotate, and the rope winding roller 602 reels the wound pull rope 603, and the pull rope 603 moves along the first guide wheel 604 and the second guide wheel 605. The moving pull rope 603 drives the rotating sleeve 5 to move through the movable seat 503, and the rotating sleeve 5 rotates following the movement of the pull rope 603 under the action of the insertion rod 501 and the rotating hole 4021. At the same time, the rotating sleeve 5 drives the connected pull rod 606 to move through the movable seat 503 on the other side, and the pull rod 606 drives the movable plate 607 to move along the cavity wall of the movable cavity 404, wherein the friction between the movable plate 607 and the cavity wall can be reduced by the ball 6071, and the movable plate 607 stretches the reset spring 608, and then drives the nozzle 7 to change its angle through the rotating sleeve 5; When the output end of the driving motor 601 drives the rope winding roller 602 to rotate in the opposite direction, the originally wound pull rope 603 will be loosened. At this time, the tension of the reset spring 608 disappears and it shrinks and resets, which will drive the movable plate 607 to reset. The movable plate 607 drives the rotation angle of the rotating sleeve 5 to reset through the pull rod 606, and then the swing of the nozzle 7 is realized by the forward and reverse reciprocating work of the driving motor 601.

[0025] See also Figure 6 As shown, the tail end of the nozzle 7 is connected with a telescopic tube 702, a pump body 3041 is fixed to the inner bottom of the water tank 304, the output port of the pump body 3041 is connected with a water supply hose 3042, the top end of the water supply hose 3042 passes through the water tank 304 and is connected to the telescopic tube 702, ear plates 701 are fixed to the outer walls of both sides of the nozzle 7, and the rotating sleeve 5 is symmetrically provided with storage grooves 502, the storage grooves 502 are matched with the ear plates 701, and a pneumatic telescopic cylinder 703 is symmetrically fixed to the end of the rotating sleeve 5 away from the storage groove 502, the telescopic end of the pneumatic telescopic cylinder 703 passes through the tube body of the rotating sleeve 5 and is fixedly connected to the ear plate 701, and the two pneumatic telescopic cylinders 703 are connected to the control main board 2 through wires.

[0026] When the nozzle 7 needs to be extended, the two pneumatic telescopic cylinders 703 work, and the telescopic ends thereof push the ear plate 701 out of the storage slot 502. The moving ear plate 701 pushes the nozzle 7 to move. The movement of the nozzle 7 stretches the telescopic tube 702. The extension of the nozzle 7 is achieved by stretching the telescopic tube 702, so that the nozzle 7 can move closer to the license plate, which is convenient for subsequent flushing.

[0027] The working principle of the present invention is: When a vehicle stops in front of the barrier, the camera module first shoots the front end of the approaching vehicle to capture the license plate image, and then sends the captured image to the image detection and recognition module to read, smooth and extract the license plate number features, and compare it with the license plate number entered in the cloud server 1 to determine whether it belongs to the entered vehicle. In the process of image processing by the image detection and recognition module, when the license plate number is unclear or blocked, the electric slide rail 305 is started to control the slide seat 401 to move downward, and the downwardly moved slide seat 401 drives the movable block 4 to move, and the movable block 4 drives the rotating sleeve 5 and the angle adjustment component 6 to move downward synchronously through the through groove 402, and the rotating sleeve 5 drives the nozzle 7 to move, and the end of the nozzle 7 moves in the movable groove 302, so that it can be at the same level as the license plate; Then the pump body 3041 works, so that water enters the nozzle 7 from the water supply hose 3042 and is sprayed out, and the sprayed water cleans the license plate. At the same time, the drive motor 601 in the angle adjustment component 6 works, and the output end of the drive motor 601 drives the rope roller 602 to rotate, and the rope roller 602 reels the wound pull rope 603, and the pull rope 603 moves along the first guide wheel 604 and the second guide wheel 605. The moving pull rope 603 drives the rotating sleeve 5 to move through the movable seat 503, and the rotating sleeve 5 follows the insertion rod 501 and the rotating hole 4021. It rotates along with the movement of the pull rope 603, and at the same time, the rotating sleeve 5 drives the connected pull rod 606 to move through the movable seat 503 on the other side, and the pull rod 606 drives the movable plate 607 to move along the cavity wall of the movable cavity 404, wherein the friction between the movable plate 607 and the cavity wall can be reduced by the ball 6071, and the moving movable plate 607 stretches the reset spring 608, and then the rotating sleeve 5 drives the nozzle 7 to change its angle, so that the water sprayed by the nozzle 7 can fully rinse the license plate, and finally the image is captured and the license plate number is judged again.

[0028] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An image acquisition system based on artificial intelligence, comprising a box (3) and a cloud server (1), characterized in that The box (3) is provided with a control mainboard (2), and a spray washing mechanism is provided below the control mainboard (2). The control mainboard (2) is connected to the cloud server (1) via a wireless network. The cloud server (1) is provided with a storage unit for storing the recorded license plate. The control mainboard (2) is provided with a camera module, an image detection and recognition module, a wireless module and a voice reminder module. The camera end of the camera module extends through the outer wall of the box (3) to the outside. The camera module collects and captures the license plate of the approaching vehicle, and sends the captured license plate image data to the image detection and recognition module for image processing and comparison with the license plate image stored in the storage unit to determine whether it belongs to the recorded vehicle. When processing the license plate image, the letters and numbers of the license plate are recognized. When the letters and numbers are unclear or blocked, the spray washing mechanism is started to work, and the blocking objects on the license plate are cleared by the spray washing mechanism, and then the collection, capture and judgment are performed again; The spray washing mechanism comprises a water tank (304), a movable block (4), a rotating sleeve (5), an angle adjustment component (6) and a spray head (7); the water tank (304) is arranged at the inner bottom of the box body (3); the movable block (4) is arranged between the water tank (304) and the control main board (2); electric slide rails (305) are fixed to the inner walls of both sides of the box body (3); both sides of the movable block (4) are slidably connected to the electric slide rails (305) via a slide seat (401); a through slot (402) is provided in the movable block (4); The sleeve (5) is arranged in the through groove (402), the nozzle (7) is installed in the rotating sleeve (5), the actuator of the angle adjustment assembly (6) is connected to the outer wall of the rotating sleeve (5), a sealing door (301) is installed on the side of the box body (3) close to the vehicle, a moving groove (302) is opened at the top of the sealing door (301), the end of the nozzle (7) extends out of the moving groove (302), and a distance sensor (8) is installed on one side of the sealing door (301), and the distance sensor (8) is wirelessly connected to the control main board (2).

2. The image acquisition system based on artificial intelligence according to claim 1, characterized in that: The image detection and recognition module includes an image reading unit, an image processing unit, an image comparison unit and an image judgment unit. The image reading unit is used to read the image collected by the camera module. The image processing unit performs smoothing processing on the read image, eliminates unnecessary high-frequency information in the image, retains important structural information, and extracts the license plate number features. The image comparison unit compares the extracted license plate number features with the license plate number entered in the storage unit. The image judgment unit determines whether it belongs to a foreign vehicle by comparing the structure; When the image reading unit finds that the license plate number is unclear when reading the image, the image judgment unit determines that the license plate is blocked by dust and leaves and sends a signal to start the spray washing mechanism, and the spray head (7) sprays water in the water tank (304) toward the license plate for washing.

3. The image acquisition system based on artificial intelligence according to claim 1, characterized in that: The movable block (4) is provided with an L-shaped groove (403) and a movable cavity (404) on both sides of the through groove (402), the two ends of the L-shaped groove (403) are respectively connected to the through groove (402) and the interior of the box body (3), the through groove (402) is provided with a rotation hole (4021) at the center of the groove top and the groove bottom, the upper and lower surfaces of the rotating sleeve (5) are welded with plug rods (501), and the two plug rods (501) are plug-connected to the rotation hole (4021).

4. The image acquisition system based on artificial intelligence according to claim 3, characterized in that: The angle adjustment assembly (6) comprises a drive motor (601), the drive motor (601) being mounted on the lower surface of the movable block (4) by means of bolts, the output end of the drive motor (601) being fixedly connected to a rope winding roller (602), a pull rope (603) being wound around the rope winding roller (602), a fixing plate (405) being welded on one side of the L-shaped groove (403) on the lower surface of the movable block (4), and a first guide wheel (604) being mounted on the fixing plate (405) A second guide wheel (605) is provided above the first guide wheel (604), both ends of the second guide wheel (605) are rotatably connected to the groove wall of the L-shaped groove (403), and movable seats (503) are fixed to the tail ends of the outer walls on both sides of the rotating sleeve (5), the pull rope (603) is connected to one movable seat (503) through the first guide wheel (604) and the second guide wheel (605), and a pull rod (606) is installed on the other movable seat (503).

5. The image acquisition system based on artificial intelligence according to claim 4, characterized in that: The two movable seats (503) are movably connected to the pull rod (606) and the pull rope (603); a movable plate (607) is provided inside the movable cavity (404); a return spring (608) is fixedly connected to the end face of the movable plate (607); an end of the return spring (608) is fixedly connected to the cavity wall of the movable cavity (404); an end of the pull rod (606) away from the movable seat (503) is inserted into the movable cavity (404) and fixedly connected to the end face of the movable plate (607).

6. The image acquisition system based on artificial intelligence according to claim 5, characterized in that: The top and bottom ends of the movable plate (607) are both embedded with balls (6071), and the surface of each ball (6071) is in rolling contact with the cavity wall of the movable cavity (404).

7. The image acquisition system based on artificial intelligence according to claim 4, characterized in that: A bottom plate (6022) is provided at the bottom end of the rope winding roller (602), L-shaped plates (6021) are fixed on both sides of the bottom plate (6022), the top ends of the two L-shaped plates (6021) are fixedly connected to the lower surface of the movable block (4), the bottom end of the rope winding roller (602) is rotatably connected to the bottom plate (6022), and the pull rope (603) passes through the surface of one L-shaped plate (6021).

8. The image acquisition system based on artificial intelligence according to claim 1, characterized in that: The tail end of the spray head (7) is connected to a telescopic tube (702), a pump body (3041) is fixed to the inner bottom of the water tank (304), an output port of the pump body (3041) is connected to a water supply hose (3042), and the top end of the water supply hose (3042) passes through the water tank (304) and is connected to the telescopic tube (702).

9. The image acquisition system based on artificial intelligence according to claim 1, characterized in that: Ear plates (701) are fixed to the outer walls of both sides of the nozzle (7); a receiving groove (502) is symmetrically provided on the rotating sleeve (5); the receiving groove (502) matches the ear plates (701); a pneumatic telescopic cylinder (703) is symmetrically fixed to one end of the rotating sleeve (5) away from the receiving groove (502); the telescopic end of the pneumatic telescopic cylinder (703) passes through the tube body of the rotating sleeve (5) and is fixedly connected to the ear plates (701); and the two pneumatic telescopic cylinders (703) are connected to the control main board (2) via wires.

10. The artificial intelligence-based image acquisition system according to claim 1, characterized in that: One side of the top end of the water tank (304) is connected to an L-shaped water supply pipe (3043), and a baffle (303) is installed on the side wall of the box body (3) at the water supply pipe (3043) by means of bolts, and the outer surface of the baffle (303) is flush with the surface of the box body (3).

Images