License plate recognition all-in-one machine

Abstract

The utility model relates to the technical field of parking management related equipment, and provides a license plate recognition all-in-one machine which comprises a machine body and a first display screen, and the first display screen is arranged on the front face of the machine body in the front-back direction of the machine body. At least one side face of the machine body is further provided with a second display screen. According to the machine, the first display screen is arranged on the front face of the machine body, similarly, the second display screen is arranged on at least one side face of the machine body, so that when a vehicle passes through the side face, a vehicle owner can see information interaction content, equipment does not need to be independently installed on product type selection or installation, and the cost of the first side and the cost of the second side can be reduced; through implementation of the scheme, the license plate recognition machine not only can provide more comprehensive and humanized services, but also can enhance user experience and product performance while ensuring functionality. The design can better meet the requirements of modern traffic management, and is also helpful for promoting the technical progress and market competitiveness of related products.

Description

Technical Field

[0001] This utility model relates to the technical field of parking management equipment, and in particular to a license plate recognition integrated machine. Background Technology

[0002] In the field of intelligent equipment for enclosed parking lots, product integration is increasing daily, with license plate recognition systems becoming core components. Facing diverse customer needs, product design is facing increasingly stringent requirements regarding rationality, stability, maximizing functionality, and implementation efficiency. To meet the demands of smart parking management, meticulous planning and development are essential to ensure products achieve the expected performance standards, thereby effectively improving the overall level of smart parking management.

[0003] However, most license plate recognition machines on the market are only equipped with LED or LCD displays on the front for interacting with vehicle owners. This design is not reasonable and fails to fully realize the product's performance potential. Utility Model Content

[0004] This utility model provides a license plate recognition integrated machine to solve the problem that license plate recognition machines on the market generally only have an LED or LCD display screen on the front, which is not reasonable and fails to give full play to the performance potential of the product.

[0005] This utility model provides a license plate recognition integrated machine, including:

[0006] Organism;

[0007] A first display screen is disposed on the front of the body along the front-rear direction of the body;

[0008] The machine body also has a second display screen on at least one side.

[0009] According to the present invention, a license plate recognition integrated machine is provided, wherein the second display screen comprises two displays.

[0010] Along the left-right direction of the machine body, each of the opposite sides of the machine body is provided with a mounting slot, and the mounting slot is installed in a one-to-one correspondence with the second display screen.

[0011] According to the present utility model, a license plate recognition integrated machine is provided in the machine body along the front-rear direction. The first display screen is installed on the mounting plate. The first display screen, the mounting plate and the machine body cooperate to form an airflow channel for heat dissipation.

[0012] The airflow channel connects the front and back of the first display screen.

[0013] According to the present invention, a license plate recognition integrated machine further includes a first cooling fan, which is disposed in the machine body and the air outlet of the first cooling fan is connected to the airflow channel.

[0014] According to the present invention, a license plate recognition integrated machine further includes a recognition device, the recognition device comprising:

[0015] A first mounting base is connected to the body.

[0016] A second mounting base is rotatably connected to the first mounting base, and the second mounting base can rotate left and right relative to the first mounting base;

[0017] A third mounting base is rotatably connected to the second mounting base, and the third mounting base can rotate up and down relative to the second mounting base;

[0018] A recognition camera, used to identify vehicle information, is mounted on the third mounting base.

[0019] According to the present invention, a license plate recognition integrated machine is provided, wherein the first mounting base is rotatably connected to the machine body, and the first mounting base rotates horizontally relative to the machine body.

[0020] According to the present invention, a license plate recognition integrated machine further includes a supplementary light device, which is disposed on the machine body and can move back and forth relative to the machine body.

[0021] According to the present utility model, a license plate recognition integrated machine is provided on the machine body, wherein a plurality of sound-emitting circular holes are provided;

[0022] The license plate recognition integrated machine also includes a voice playback device, which includes:

[0023] The mounting shell is disposed inside the body of the machine and has a sound cavity that is connected to the sound outlet hole.

[0024] A speaker is provided, which is connected to the mounting housing, and there is a gap between the sound-emitting surface of the speaker and the area where the sound-emitting circular hole is located.

[0025] According to the license plate recognition integrated machine provided by this utility model, the cross-sectional shape of the sound cavity is trapezoidal along the vertical direction of the mounting shell.

[0026] According to the present invention, a license plate recognition integrated machine is provided, wherein the machine body is provided with a breathing light surrounding its outer perimeter.

[0027] The license plate recognition integrated machine provided by this utility model not only has a first display screen on the front of the machine, but also a second display screen on at least one side of the machine, so that the driver can see interactive information when a vehicle passes by from the side. Through the implementation of this solution, the license plate recognition machine can not only provide more comprehensive and user-friendly services, but also enhance user experience and product performance while ensuring functionality. This design better meets the needs of modern traffic management and also helps to promote the technological advancement and market competitiveness of related products. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of the license plate recognition integrated machine provided by this utility model.

[0030] Figure 2 This is a first-view cross-sectional schematic diagram of the license plate recognition integrated machine provided by this utility model.

[0031] Figure 3 This is a second-view cross-sectional schematic diagram of the license plate recognition integrated machine provided by this utility model.

[0032] Figure 4 This is a structural schematic diagram of the support plate and identification device provided by this utility model.

[0033] Figure 5 This is an exploded view of the support plate and identification device provided by this utility model.

[0034] Figure 6 This is a structural schematic diagram of the fixing plate and supplementary lighting device provided by this utility model.

[0035] Figure label:

[0036] 100. Body; 110. Mounting plate; 120. Airflow channel; 130. Sound outlet hole; 140. Support plate; 141. Long strip hole; 150. Fixing plate; 151. Moving through hole; 160. Long strip hole; 170. Fixing arc hole; 180. Mounting position;

[0037] 200. First display screen; 300. Second display screen; 400. First cooling fan;

[0038] 500. Identification device; 510. First mounting base; 511. First mounting hole; 512. First rotating hole; 513. Mounting round hole; 514. Mounting arc-shaped hole;

[0039] 520. Second mounting base; 521. First arc-shaped hole; 522. Second rotating hole; 523. Second mounting hole; 524. Third rotating hole; 530. Third mounting base; 531. Second arc-shaped hole; 532. Fourth rotating hole; 540. Recognition camera;

[0040] 600. Fill light device; 610. Connecting frame; 611. Connecting hole; 620. Fill light;

[0041] 700, mounting shell; 710, sound cavity; 800, breathing light. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] In related technologies, most license plate recognition devices on the market are equipped with only an LED or LCD display screen on the front for information interaction with the vehicle owner. Because the information display is limited to the front of the device, and only LED or LCD screens can be used as the display medium, the vehicle owner can only see the displayed information by driving the car up to the front of the device, thus limiting the information display angle.

[0044] Given the diversity of urban roads and parking entrances, license plate recognition cameras are required to have adjustable recognition angles. Currently, there are various methods for adjusting camera angles on the market, but in practical applications, they are either difficult to adjust or have very low adjustability. They need to be adjusted in conjunction with bottom mounting to meet the usage requirements. If the matching is not good, it will affect the success rate of license plate recognition.

[0045] In addition, the speaker of the aforementioned license plate recognition machine is close to the outer shell and is not processed by the sound cavity 710, resulting in a harsh sound transmission and poor sound quality; and the device's working status indicator light is only displayed on the front, which is not a good experience for owners, security guards, or car owners.

[0046] The following is combined with Figures 1-6The license plate recognition integrated machine of this utility model includes a body 100 and a first display screen 200, the first display screen 200 being disposed on the front of the body 100 along the front-rear direction; wherein, at least one side of the body 100 is also provided with a second display screen 300.

[0047] The license plate recognition integrated machine provided by this utility model not only has a first display screen 200 on the front of the machine body 100, but also a second display screen 300 on at least one side of the machine body 100. This allows the driver to see interactive information when a vehicle passes by from the side. It eliminates the need for separate installation of this equipment, reducing costs for both parties. Through the implementation of this solution, the license plate recognition machine not only provides more comprehensive and user-friendly services, but also enhances user experience and product performance while ensuring functionality. This design better meets the needs of modern traffic management and helps promote technological advancements and market competitiveness in related products.

[0048] Specifically, refer to Figures 1 to 3 In this embodiment of the utility model, there are two second display screens 300. Along the left and right direction of the body 100, each of the opposite sides of the body 100 is provided with a mounting groove, and the mounting groove is installed in a one-to-one correspondence with the second display screen 300.

[0049] With the above setup, since there is a display screen on each side, when the vehicle enters or leaves the recognition area, the driver can clearly see the information on the display screen from any direction, enhancing visibility. The second display screen 300 on both sides can display the same or different information simultaneously, providing the driver with more diverse information and improving the efficiency of information transmission. The dual-side display can reduce the driver's trouble of searching for the display screen and improve the overall interactive experience.

[0050] It should be noted that in this embodiment of the utility model, the first display screen 200 is an LCD display screen and the second display screen 300 is an LED display screen. By setting both LED display screen and LCD display screen on the body 100 of the license plate recognition integrated unit, the left and right sides of the product also have display and interaction capabilities.

[0051] Specifically, refer to Figure 2 and Figure 3 In this embodiment of the utility model, along the front and rear direction of the body 100, a mounting plate 110 is provided inside the body 100, and the first display screen 200 is mounted on the mounting plate 110. The first display screen 200, the mounting plate 110 and the body 100 cooperate to form an airflow channel 120 for heat dissipation.

[0052] The airflow channel 120 connects the front and back of the first display screen 200.

[0053] Because LCD displays generate a lot of heat, an airflow channel 120 is provided to cover both the front and back of the first display screen 200, thereby enhancing the heat dissipation effect of the device and preventing problems such as white screen, black screen, screen distortion, system crash and restart caused by poor heat dissipation.

[0054] Understandably, referring to Figure 2 and Figure 3 In this embodiment of the present invention, tempered glass is provided on the front of the body 100 at the mounting position 180 of the first display screen 200. There is a gap between the front of the first display screen 200 and the inner wall of the tempered glass, so that a first air duct is formed between the left and right side walls of the mounting plate 110, the front of the first display screen 200 and the inner wall of the tempered glass. There is a gap between the front plate of the mounting plate 110 and the back of the first display screen 200, so that a second air duct is formed between the front plate of the mounting plate 110 and the back of the first display screen 200. The first air duct and the second air duct are connected to form the aforementioned airflow channel 120.

[0055] Understandably, referring to Figure 2 and Figure 3 In this embodiment of the utility model, the license plate recognition integrated machine also includes a first cooling fan 400, which is disposed inside the body 100, and the air outlet of the first cooling fan 400 is connected to the airflow channel 120.

[0056] With the above configuration, the first cooling fan 400 blows air in, which can dissipate heat from both the front and back of the LCD screen at the same time. It can be directly aimed at heat sources, such as electronic components and processors, and remove heat through continuous airflow, thereby improving heat dissipation efficiency. It can also help the equipment maintain normal operation in high-temperature environments and improve the environmental adaptability of the equipment.

[0057] It should be noted that in this embodiment of the utility model, the mounting plate 110 is made of sheet metal, and the bottom of the mounting plate 110 is provided with an air inlet hole. The airflow channel 120, i.e., the first air duct, is connected to the air inlet hole. The aforementioned first cooling fan 400 is disposed below the mounting plate 110, and there are two first cooling fans 400. The two first cooling fans 400 are arranged at intervals, and the air outlet of the first cooling fan 400 is aligned with and connected to the air inlet hole to deliver air to the airflow channel 120, i.e., the first air duct, thereby achieving heat dissipation.

[0058] Specifically, refer to Figures 1 to 5In this embodiment of the utility model, the license plate recognition integrated machine further includes a recognition device 500, which includes a first mounting base 510, a second mounting base 520, a third mounting base 530, and a recognition camera 540. The first mounting base 510 is connected to the body 100, the second mounting base 520 is rotatably connected to the first mounting base 510 and rotates left and right relative to the first mounting base 510, and the third mounting base 530 is rotatably connected to the second mounting base 520 and rotates up and down relative to the second mounting base 520. The recognition camera 540 is used to recognize vehicle information and is mounted on the third mounting base 530.

[0059] It should be noted that in this embodiment of the present invention, the identification device 500 is installed inside the body 100. Of course, in some embodiments, the identification device 500 is installed outside the body 100, which is not limited here.

[0060] The second mounting base 520 can rotate left and right, and the third mounting base 530 can rotate up and down, allowing the aforementioned recognition camera 540 to rotate up, down, left, and right. This design enables the adjustment of the capture angle of the recognition camera 540; the angle adjustment of the license plate recognition capture camera can be adapted to various pixel cameras with the same structure, enhancing product compatibility, and can be applied to both new installations and reused installations.

[0061] Specifically, refer to Figure 4 and Figure 5 In this embodiment of the present invention, the first mounting base 510 has a first mounting hole 511 and a first rotating hole 512 on its side wall; the second mounting base 520 has a first arc-shaped hole 521 and a second rotating hole 522 on its lower side wall; the second mounting base 520 has a second mounting hole 523 and a third rotating hole 524 on its upper side wall; and the third mounting base 530 has a second arc-shaped hole 531 and a fourth rotating hole 532 on its lower side wall.

[0062] Specifically, the first mounting hole 511 and the first arc-shaped hole 521 are correspondingly fitted, the first rotating hole 512 and the second rotating hole 522 are correspondingly fitted, the second mounting hole 523 and the second arc-shaped hole 531 are correspondingly fitted, and the third rotating hole 524 and the fourth rotating hole 532 are correspondingly fitted.

[0063] In this embodiment of the invention, the first mounting hole 511 and the first arc-shaped hole 521, and the second mounting hole 523 and the second arc-shaped hole 531 are connected by mounting bolts and mounting nuts. The mounting bolts are slidable relative to both the first arc-shaped hole 521 and the second arc-shaped hole 531, and the extreme positions of the rotation angles are achieved through the first arc-shaped hole 521 and the second arc-shaped hole 531. The first rotating hole 512 and the second rotating hole 522, as well as the third rotating hole 524 and the fourth rotating hole 532, are locked together by locking bolts and locking nuts, allowing for rotatable engagement, so that the first mounting base 510 and the second mounting base 520 are connected, and the second mounting base 520 and the third mounting base 530 are connected. By loosening the locking nuts, relative rotation between the first mounting base 510 and the second mounting base 520, and relative rotation between the second mounting base 520 and the third mounting base 530, can be achieved.

[0064] Understandably, referring to Figure 4 and Figure 5 In this embodiment of the utility model, the first mounting base 510 is rotatably connected to the body 100, and the first mounting base 510 rotates horizontally relative to the body 100.

[0065] Specifically, the body 100 has a support plate 140 inside, which has three elongated slots 141. The first mounting base 510 has a round mounting hole 512 and two arc-shaped mounting holes 513. The two arc-shaped mounting holes 513 are located on opposite sides of the round mounting hole 512. The two arc-shaped mounting holes 513 and the round mounting hole 512 correspond one-to-one with the three elongated slots 141. The first mounting base 510 can be adjusted horizontally relative to the support plate 140 by mounting bolts and mounting nuts, which achieves precise adjustment and increases the flexibility of adjustment.

[0066] Of course, in some embodiments, the first mounting base 510 and the body 100 can also adopt a ball joint and bolt fixing structure. For example, using the ball joint as the rotation point and fixing it with bolts can achieve multi-directional adjustment. The ball joint provides flexible rotation, while the bolts can fix the position.

[0067] With the above structure, the first mounting base 510 can rotate horizontally, and combined with the left-right and up-down rotation of the second mounting base 520 and the third mounting base 530, the recognition camera 540 can be adjusted in three dimensions to achieve all-round angle adjustment; through horizontal rotation, the recognition device 500 can cover a wider detection range.

[0068] It should also be noted that in this embodiment of the utility model, the angle of the camera 540 is manually adjusted and identified. However, in some other embodiments, the first mounting base 510, the second mounting base 520 and the third mounting base 530 may each be provided with a driving mechanism to adjust the corresponding rotation angle and realize automatic adjustment.

[0069] It is understood that, in this embodiment of the utility model, the license plate recognition integrated machine also includes a supplementary light device 600, which is disposed on the body 100 and can move back and forth relative to the body 100.

[0070] Specifically, refer to Figures 1 to 3 as well as Figure 6 In this embodiment of the invention, a fixing plate 150 is provided inside the body 100. The fixing plate 150 has a movable through hole 151 in the front-rear direction. The supplementary lighting device 600 includes a connecting frame 610 and a supplementary light 620 fixedly connected to the connecting frame 610. The connecting frame 610 has a connecting hole 611. The connecting hole 611 and the movable through hole 151 are connected in a front-rear movable manner through a connecting structure. The connecting structure can be a connecting bolt and a connecting nut. After the connecting bolt and the connecting nut are loosened, the connecting bolt slides relative to the movable through hole 151, allowing adjustment of the relative positions of the supplementary light 620 and the body 100 in the front-rear direction. Of course, in some embodiments, the connecting hole 611 is located on the fixing plate 150, and the movable through hole 151 is located on the connecting frame 610.

[0071] With the above structure, the supplementary lighting device 600 can adjust its position according to the intensity of ambient light to ensure sufficient illumination in the license plate area and improve the accuracy of license plate recognition; it provides a more flexible and efficient lighting solution for the license plate recognition all-in-one machine, thereby maintaining high-performance license plate recognition capabilities in various environments.

[0072] Of course, in some embodiments, the supplementary lighting device 600 and the body 100 can also be connected by sliding rails and sliding seats to achieve forward and backward movement, which is not limited here.

[0073] It should be noted that in this embodiment of the utility model, the front and rear positions of the supplementary lighting device 600 can be manually adjusted by the operator. Of course, in some embodiments, the supplementary lighting device 600 can also be moved back and forth by a telescopic mechanism.

[0074] Understandably, referring to Figures 1 to 3In this embodiment of the utility model, the body 100 is provided with a plurality of sound-emitting circular holes 130; the license plate recognition integrated machine also includes a voice playback device, the voice playback device including a mounting shell 700 and a voice speaker, the mounting shell 700 is disposed inside the body 100, the mounting shell 700 has a sound cavity 710, the sound cavity 710 is connected to the sound-emitting circular holes 130, the voice speaker is connected to the mounting shell 700, and the sound-emitting surface of the voice speaker is spaced from the area where the sound-emitting circular holes 130 are located.

[0075] With the above structure, the design of the sound outlet hole 130 helps the sound to propagate effectively and reduces the loss of sound during propagation; the mounting housing 700 has a sound cavity 710, which can protect the internal voice speaker from the influence of the external environment (such as dust and moisture), ensure maximum sound, and extend the life of the equipment; the sound outlet surface of the voice speaker and the area where the sound outlet hole 130 is located have a gap, which can optimize the sound quality, reduce distortion, and provide a clearer voice playback effect.

[0076] It should be noted that in this embodiment of the utility model, the multiple sound-emitting circular holes 130 are arranged in an elongated hexagonal shape, and the mounting shell 700 has an arc-shaped hole for contacting and fixing with the voice speaker. The arc-shaped hole is the same as the voice cavity 710 that is compatible with the voice speaker to ensure maximum sound.

[0077] Specifically, refer to Figure 2 and Figure 3 In this embodiment of the utility model, the cross-sectional shape of the sound cavity 710 is trapezoidal along the vertical direction of the mounting shell 700. The trapezoidal sound cavity 710 design improves the on-site sound efficiency by more than 10%. In addition, the trapezoidal design allows water to be drained through the outer hole or the sound outlet hole 130 if there is any leakage.

[0078] Understandably, referring to Figures 1 to 3 In this embodiment of the invention, the body 100 is provided with a breathing light 800 surrounding its outer perimeter. Specifically, the upper part of the body 100 is designed with a breathing light 800 surrounding it in a ring, with the breathing light 800 encircling the body 100 360° on all four sides, so that the status indication of the breathing light 800 can be seen from different angles. Specifically, in this embodiment of the invention, the breathing light 800 has three light states: red, green, and blue.

[0079] Understandably, in this embodiment, the license plate recognition all-in-one machine adopts an integrated design concept, integrating a high-definition LED display, an intuitive LCD display, a dynamic breathing light 800, a high-precision recognition camera 540, and a professional supplementary light 620, among other configurations. This integrated design not only improves the overall performance of the device but also ensures ease of operation and visual appeal, bringing an efficient and intelligent recognition experience to users such as property owners, security guards, and vehicle owners.

[0080] Specifically, in this embodiment of the utility model, a photosensitive sensor is provided on the side of the body 100 in the left-right direction. The photosensitive sensor can detect the light intensity of the surrounding environment and automatically adjust the brightness of the display screen according to the changes in light to ensure a clear display effect under any lighting conditions.

[0081] Specifically, refer to Figure 2 and Figure 3 In this embodiment of the invention, the bottom of the body 100 is provided with a strip-shaped circular hole 160 and a plurality of fixing arc-shaped holes 170 arranged around the strip-shaped circular hole 160. Fasteners such as mounting bolts can be used to engage with the strip-shaped circular hole 160 and the plurality of fixing arc-shaped holes 170 to fix the body 100 to the ground. Of course, the use of the strip-shaped circular hole 160 and the plurality of fixing arc-shaped holes 170 allows for easy adjustment of the installation angle of the body 100, making installation flexible.

[0082] Understandably, referring to Figure 2 In this embodiment of the utility model, two mounting positions 180 are provided at intervals within the body 100. The mounting positions 180 are used to install a second cooling fan. The position of the mounting position 180 is aligned with the position of the identification device 500 so that the identification device 500 can be cooled by the second cooling fan to ensure normal operation.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A license plate recognition all-in-one machine, characterized in that, Include: Machine body (100); First display screen (200), the first display screen (200) is arranged on the front of the machine body (100) along the front-back direction of the machine body (100); Wherein, at least one side of the machine body (100) is also provided with a second display screen (300); Along the front-back direction of the machine body (100), the mounting plate body (110) is arranged in the machine body (100), the first display screen (200) is mounted on the mounting plate body (110), and the first display screen (200), the mounting plate body (110) and the machine body (100) are cooperated to form an air flow channel (120) for heat dissipation; The license plate recognition all-in-one machine further includes a first cooling fan (400), and the first cooling fan (400) is arranged in the machine body (100), and the air outlet end of the first cooling fan (400) is communicated with the air flow channel (120); Wherein, the air flow channel (120) is communicated on the front and back of the first display screen (200); the first cooling fan (400) is arranged below the mounting plate body (110).

2. The license plate recognition all-in-one machine according to claim 1, characterized in that, The second display screen (300) is two; Along the left-right direction of the machine body (100), the opposite sides of the machine body (100) are each provided with a mounting groove, and the mounting groove is one-to-one corresponding with the second display screen (300).

3. The license plate recognition all-in-one machine according to any one of claims 1 to 2, characterized in that, The license plate recognition all-in-one machine further includes an identification device (500), and the identification device (500) comprises: First mounting seat (510), the first mounting seat (510) is connected with the machine body (100); Second mounting seat (520), the second mounting seat (520) is rotatably connected with the first mounting seat (510), and the second mounting seat (520) rotates left and right relative to the first mounting seat (510); Third mounting seat (530), the third mounting seat (530) is rotatably connected with the second mounting seat (520), and the third mounting seat (530) rotates up and down relative to the second mounting seat (520); Identification camera (540) for identifying vehicle information, the identification camera (540) is arranged on the third mounting seat (530).

4. The license plate recognition all-in-one machine according to claim 3, characterized in that, The first mounting seat (510) is rotatably connected with the machine body (100), and the first mounting seat (510) rotates horizontally relative to the machine body (100).

5. The license plate recognition all-in-one machine according to any one of claims 1 to 2, characterized in that, The license plate recognition all-in-one machine further includes a light supplementing device (600), and the light supplementing device (600) is arranged on the machine body (100) and can move forward and backward relative to the machine body (100).

6. The license plate recognition all-in-one machine according to any one of claims 1 to 2, characterized in that, A plurality of sound holes (130) are arranged on the machine body (100); The license plate recognition all-in-one machine further includes a voice playing device, and the voice playing device comprises: Mounting shell (700), the mounting shell (700) is arranged in the machine body (100), the mounting shell (700) has an acoustic cavity (710), and the acoustic cavity (710) is communicated with the sound hole (130); A voice speaker is connected with the mounting shell (700), and a sound emitting surface of the voice speaker has a spacing with an area where the sound emitting hole (130) is located.

7. The license plate recognition all-in-one machine according to claim 6, characterized in that, The cross-sectional shape of the sound cavity (710) is trapezoidal along the up-down direction of the mounting shell (700).

8. The license plate recognition all-in-one machine according to claim 1, characterized in that, The machine body (100) is provided with a breathing lamp (800) surrounding the outer periphery thereof.

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