License plate recognition device

Abstract

The utility model discloses a license plate recognition device which comprises a box body and a camera module, one side of the box body is provided with a camera hole, and the camera module is installed in the box body and exposed out of the camera hole; the camera module comprises a first camera support, a shooting camera and a steering body, and the first camera support is provided with a first steering cavity; the shooting camera comprises a lens and a rotating part arranged on one side of the lens; the steering body is arranged on the periphery of the lens in a sleeving mode and fixedly connected with the lens, the steering body is contained in the first steering cavity, and the steering body can rotate in the circumferential direction of the first steering cavity under rotation of the rotating part. When the camera module provided by the utility model is installed, the shooting angle of the lens can be dynamically adjusted, so that the lens can be fixed at the optimal shooting position.

Description

Technical Field

[0001] The utility model relates to the field of barriers, in particular to a vehicle license plate recognition device. Background Art

[0002] The fixed position of the camera in the license plate recognition device is very critical, and it is necessary to consider the camera's installation angle, position, method, and post-maintenance, so as to ensure the high efficiency and accuracy of the license plate recognition system. In the prior art, although the camera in the license plate recognition device has a standard installation position, the installation position is relatively fixed and single, and it is impossible to ensure that the camera can achieve the best shooting field of view every time it is installed. Utility Model Content

[0003] In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a license plate recognition device, including a box body, one side of the box body has a camera hole; a camera module, installed in the box body and exposed to the camera hole; the camera module includes: a first camera bracket, the first camera bracket has a first steering cavity; a shooting camera, including a lens and a rotating part arranged on one side of the lens; a steering body, the steering body is sleeved on the periphery of the lens and fixedly connected to the lens, the steering body is accommodated in the first steering cavity, and the steering body can rotate along the circumference of the first steering cavity under the rotation of the rotating part.

[0004] In some embodiments of the present application, the steering body is spherical, and includes a first steering portion and a second steering portion that are symmetrical to each other.

[0005] In some embodiments of the present application, the camera module also includes a bracket end cover, which is arranged on a side of the first camera bracket close to the shooting camera, and the bracket end cover has a second steering cavity, which is connected to the first steering cavity to allow the steering body to rotate in the second steering cavity.

[0006] In some embodiments of the present application, the camera module also includes a lighting assembly, which includes a lighting control circuit board and a plurality of lamp beads arranged around the lighting control circuit board; the first camera bracket has a plurality of lamp holes that are compatible with the lamp beads, and the lamp holes are arranged around the first turning cavity.

[0007] In some embodiments of the present application, the camera module also includes a second camera bracket fixedly connected to the first camera bracket, the second camera bracket is cylindrical and has a shooting cavity, and the cross-sectional size of the shooting cavity gradually increases in a direction away from the first camera bracket.

[0008] In some embodiments of the present application, the camera module further includes a transparent panel, and the transparent panel is disposed between the first camera bracket and the second camera bracket.

[0009] In some embodiments of the present application, the license plate recognition device further includes a control module, which is disposed in the housing and fixed to the first camera bracket; the control module is electrically connected to the camera module.

[0010] In some embodiments of the present application, the license plate recognition device further includes a display module, which is disposed on the same side of the housing as the camera module, and is electrically connected to the control module for displaying the license plate.

[0011] In some embodiments of the present application, the license plate recognition device further includes a lighting module, which is disposed on the same side of the box as the camera module, and the lighting module is electrically connected to the control module.

[0012] In some embodiments of the present application, a cooling fan is further disposed in the box, the cooling fan is controlled by the control module, and is arranged along the vertical direction of the box.

[0013] The utility model has the following beneficial effects: the utility model discloses a license plate recognition device, comprising a box body and a camera module, wherein one side of the box body has a camera hole, and the camera module is installed in the box body and exposed in the camera hole; the camera module comprises a first camera bracket, a shooting camera and a steering body, wherein the first camera bracket has a first steering cavity; the shooting camera comprises a lens and a rotating part arranged on one side of the lens;

[0014] The steering body is sleeved on the periphery of the lens and fixedly connected to the lens, and the steering body is accommodated in the first steering cavity. Under the rotation of the rotating part, the steering body can rotate along the circumference of the first steering cavity. When the camera module of the utility model is installed, the shooting angle of the lens can be dynamically adjusted so that it is fixed at the best shooting position. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of a license plate recognition device of the utility model;

[0016] Figure 2 It is an exploded schematic diagram of a license plate recognition device of the utility model;

[0017] Figure 3 It is a top view of a side cover assembly in a license plate recognition device of the utility model;

[0018] Figure 4 It is a top view of a first connecting member in a license plate recognition device of the utility model;

[0019] Figure 5 It is a top view of a second connecting member in a license plate recognition device of the utility model;

[0020] Figure 6 It is a top view of a third connecting member in a license plate recognition device of the utility model;

[0021] Figure 7 It is a three-dimensional diagram of a top connecting frame in a license plate recognition device of the utility model;

[0022] Figure 8 It is a three-dimensional diagram of a bottom connecting frame in a license plate recognition device of the utility model;

[0023] Fig. 9 It is a three-dimensional diagram of a bottom connecting piece in a license plate recognition device of the utility model;

[0024] Fig.10 It is a schematic diagram of the assembly of the bottom connecting member and the bottom connecting frame in a license plate recognition device of the utility model;

[0025] Fig.11 It is a stereogram of a camera module and a control module in a license plate recognition device of the utility model;

[0026] Fig.12 It is an exploded schematic diagram of a camera and a steering body in a license plate recognition device of the utility model;

[0027] Fig.13 It is an exploded schematic diagram of a camera and a steering body in a license plate recognition device of the utility model;

[0028] Fig.14 It is a three-dimensional diagram of a first camera bracket in a license plate recognition device of the utility model;

[0029] Fig.15 It is a three-dimensional diagram of a bracket end cover in a license plate recognition device of the utility model;

[0030] Fig.16 It is a three-dimensional diagram of a lighting assembly in a license plate recognition device of the utility model;

[0031] Fig.17 It is a stereoscopic diagram of a second camera bracket in a license plate recognition device of the utility model;

[0032] Fig.18 The utility model is a three-dimensional diagram of a heat dissipation bracket in a license plate recognition device. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0034] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0035] The present application provides a license plate recognition device, which includes a box 100 formed by a top seat assembly 10, a base assembly 20, a side cover assembly 30, a front panel 40, and a rear panel 50, as well as a camera module 60 and a display module (not shown) arranged in the box 100. The camera module 60 is used to photograph the vehicle's license plate, and separate the characters in the license plate for recognition, and the license plate number is output through the display module; the license plate recognition device in the present application can be used in places such as access control gates.

[0036] As an embodiment of a license plate recognition device, Figures 1 to 18 As shown, in this embodiment, the top seat assembly 10 and the base assembly 20 are arranged opposite to each other; the side cover assembly 30 is arranged between the top seat assembly 10 and the base assembly 20, and the side cover assembly 30 has two groups, which are respectively located on the left and right sides of the top seat assembly 10 in the vertical direction; specifically, as Figure 3 As shown, the side cover assembly 30 includes a first connecting member 31, a second connecting member 32 and a third connecting member 33, wherein the second connecting member 32 is disposed between the first connecting member 31 and the second connecting member 32, and is plugged and fixed to the first connecting member 31 and the second connecting member 32; the front side panel 40 is disposed between the top seat assembly 10 and the base assembly 20, and is located at the front side of the top seat assembly 10 in the vertical direction; the rear side panel 50 is disposed between the top seat assembly 10 and the base assembly 20, and is located at the rear side of the top seat assembly 10 in the vertical direction, and is parallel to the front side panel 40. Among them, the side cover assembly 30 is made of aluminum alloy, and is formed by splicing the first connecting member 31, the second connecting member 32 and the third connecting member 33, so that the box body 100 is easy to assemble and disassemble, and the assembly gap is small, and the box body 100 is not easy to deform.

[0037] Combination Figure 4In this embodiment, the first connecting member 31 is a plate-shaped structure as a whole, and its cross section is roughly L-shaped; the first end of the first connecting member 31 has a first plug-in slot 311 along the vertical direction, and the second connecting member 32 is also a plate-shaped structure, and the first end of the second connecting member 32 has a first plug-in block 321 along the vertical direction, and the first plug-in block 321 can be inserted and fixed in the first plug-in slot 311; Figure 5 The third connecting member 33 is a plate-like structure as a whole, and its cross section is roughly L-shaped; the first end of the third connecting member 33 has a second plug-in slot 331 along the vertical direction, and the second end of the second connecting member 32 has a second plug-in block 322 along the vertical direction, and the second plug-in block 322 can be inserted and fixed in the second plug-in slot 331. It can be seen that the first end of the second connecting member 32 is fixed to the first connecting member 31 by plugging, and the second end of the second connecting member 32 is fixed to the third connecting member 33 by plugging, so that the efficiency of assembly and disassembly can be improved; when one of them is damaged, the damaged part can be directly replaced without replacing the entire side cover assembly 30, thereby saving maintenance costs.

[0038] Combination Figure 5 The first plug-in block 321 and the second plug-in block 322 have the same shape, and their cross-sections are roughly T-shaped. The first plug-in slot 311 is adapted to the first plug-in block 321, and the second plug-in slot 331 is adapted to the second plug-in block 322. In some other embodiments, the first connector 31 has a first plug-in block 321, the third connector 33 has a second plug-in block 322, and the second connector 32 has a first plug-in slot 311 and a second plug-in slot 331.

[0039] In this embodiment, the front panel 40 and the rear panel 50 are both plate-like structures, and the second end of the first connecting member 31 has a first bearing notch 312 along the vertical direction, and the first bearing notch 312 is adapted to the edge of the front panel 40, so that the edge of the front panel 40 abuts against the first bearing notch 312, ensuring that the outer side surface of the front panel 40 and the outer side surface of the first connecting member 31 have a smooth transition, with good flatness and aesthetics; the second end of the third connecting member 33 has a second bearing notch 332 along the vertical direction, and the second bearing notch 332 is adapted to the edge of the rear panel 50, so that the edge of the rear panel 50 abuts against the second bearing notch 332, ensuring that the outer side surface of the rear panel 50 and the outer side surface of the third connecting member 33 have a smooth transition, with good flatness and aesthetics.

[0040] Combination Figure 2In this embodiment, the top seat assembly 10 includes a top cover 11, a top connector 12 and a top connector frame 13, wherein the top connector 12 is disposed at the bottom of the top cover 11 and is fixedly connected to the top cover 11; the top connector frame 13 is disposed at the bottom of the top connector 12 and is fixedly connected to the side cover assembly 30. The top cover 11, the top connector 12 and the top connector frame 13 are fixed by threaded connection.

[0041] Further, such as Figure 7 As shown, the top connecting frame 13 includes a top connecting frame 131, a top front fixing member 132 and a top rear fixing member 133, wherein the left and right sides of the top connecting frame 131 are fixedly connected to the first connecting member 31 and the third connecting member 33; specifically, the left and right sides of the top connecting frame 131 are provided with connecting holes. Figure 4 and Figure 6 In the embodiment, the inner sides of the first connecting member 31 and the third connecting member 33 have at least one connecting portion 313 along the vertical direction, and the top of the connecting portion 313 is fixedly connected to the connecting hole of the top connecting frame 131 by threaded connection; the top front fixing member 132 is located at the front side of the top connecting frame 131 and is perpendicular to the top connecting frame 131, and is used to abut against and fixedly connect with the front side panel 40; the top rear fixing member 133 is located at the rear side of the top connecting frame 131 and is perpendicular to the top connecting frame 131, and is used to abut against and fixedly connect with the rear side panel 50. It can be seen that the top connecting frame 131 can fix the top of the side cover assembly 30, the front side panel 40, and the rear side panel 50, thereby enhancing the stability of the top of the box body 100.

[0042] Combination Figure 2 In this embodiment, the base assembly 20 includes a base 21, a bottom connecting member 22 and a bottom connecting frame 23, wherein the bottom connecting member 22 is disposed on the top of the base 21 and is fixedly connected to the base 21; the bottom connecting frame 23 is disposed on the top of the bottom connecting member 22 and is fixedly connected to the side cover assembly 30. The base 21, the bottom connecting member 22 and the bottom connecting frame 23 are fixed by threaded connection.

[0043] Further, such as Figure 8As shown, the bottom connecting frame 23 includes a bottom connecting frame 231, a bottom front fixing member 232 and a bottom rear fixing member 233, wherein the left and right sides of the bottom connecting frame 231 are fixedly connected to the first connecting member 31 and the third connecting member 33; specifically, the left and right sides of the bottom connecting frame 231 are provided with connecting holes, and the bottom of the connecting portion 313 is fixedly connected to the connecting holes of the bottom connecting frame 231 by threaded connection; the bottom front fixing member 232 is located at the front side of the bottom connecting frame 231 and is perpendicular to the bottom connecting frame 231, and is fixedly connected to the front side panel 40; the bottom rear fixing member 233 is located at the rear side of the bottom connecting frame 231 and is perpendicular to the bottom connecting frame 231, and is fixedly connected to the rear side panel 50. It can be seen that the bottom connecting frame 23 can fix the bottom of the side cover assembly 30, the front side panel 40, and the rear side panel 50, thereby enhancing the stability of the bottom of the box body 100.

[0044] Further, combined with Fig. 9 The bottom connecting member 22 includes a bottom connecting plate 221 and a bottom edge 222 along the circumference of the bottom connecting plate 221 and perpendicular to the bottom connecting plate 221. The bottom edge 222 is arranged around the periphery of the side cover assembly 30, the front side panel 40 and the rear side panel 50; and the middle position of the bottom connecting plate 221 also has a bottom protrusion 223 protruding upward. Figure 8 In the middle position of the bottom connection frame 231, there is also a bottom through hole 2311 adapted to the bottom protrusion 223. During installation, the bottom connection frame 231 can be positioned by matching the bottom protrusion 223 through the bottom through hole 2311. After the bottom connection frame 23 is installed on the bottom connection member 22, Fig.10 shown.

[0045] like Figure 2 As shown, in the present embodiment, the front panel 40 has a camera hole 41, through which the display module is fixed in the box 100; the front panel 40 has a display hole 42, through which the display module is fixed in the box 100; the front panel 40 has a lighting hole 43, through which the lighting module is fixed in the box 100 for nighttime lighting; the camera hole 41, the display hole 42 and the lighting hole 43 are arranged along the vertical direction of the front panel 40.

[0046] Combination Fig.11 In this embodiment, a control module 80 is further provided in the box body 100, and the control module 80 is electrically connected to the display module, the display module and the lighting module.

[0047] Combination Figure 2 and Fig.18In this embodiment, a cooling fan 71 is further provided in the box body 100. The cooling fan 71 is controlled by the control module 80 and is used to dissipate heat for the electronic components in the box body 100. The cooling fan 71 is arranged along the vertical direction of the box body 100 and is fixed to the inner side of the rear panel 50 through the cooling bracket 70.

[0048] Further, combined with Figures 12 to 17 In this embodiment, the camera module 60 includes a first camera bracket 61, a shooting camera 63, and a steering body 62, wherein the first camera bracket 61 has a first steering cavity 611; the shooting camera 63 includes a lens 631 and a rotating part 632 disposed on one side of the lens 631; the steering body 62 is sleeved on the periphery of the lens 631 and is fixedly connected to the lens 631, and the steering body 62 can be accommodated in the first steering cavity 611, and the steering body 62 can rotate along the circumference of the first steering cavity 611 under the rotation of the rotating part 632. When the shooting camera 63 is installed, the steering body 62 is relatively fixed in the first steering cavity 611, and then the lens 631 of the shooting camera 63 can be rotated by rotating the rotating part 632, and the steering body 62 rotates coaxially with the lens 631 and rotates along the circumference of the first steering cavity 611. When the lens 631 reaches the best shooting angle, the rotating part 632 stops rotating. When the camera module 60 in this embodiment is installed, the shooting angle of the lens 631 can be dynamically adjusted to fix it at the best shooting position.

[0049] Furthermore, there is damping between the steering body 62 and the first steering cavity 611 , and after the steering body 62 rotates, the relative position of the steering body 62 in the first steering cavity 611 remains unchanged, that is, no further rotation occurs.

[0050] like Fig.13 As shown, in this embodiment, the steering body 62 is spherical, and includes a first steering portion 621 and a second steering portion 622 that are symmetrical to each other; the first steering portion 621 and the second steering portion 622 are detachably connected, and their cross sections are both semicircular.

[0051] In this embodiment, the steering body 62 further includes a steering cover 623 , which is engaged with the head of the lens 631 to protect the lens 631 .

[0052] In this embodiment, the camera module 60 also includes a bracket end cover 64, which is arranged on the side of the first camera bracket 61 close to the shooting camera 63. The bracket end cover 64 has a second turning cavity 641, and the second turning cavity 641 is connected to the first turning cavity 611 to allow the steering body 62 to rotate in the second turning cavity 641.

[0053] In this embodiment, if Fig.16As shown, the camera module 60 further includes a lighting assembly 65 , which includes a lighting control circuit board 651 and a plurality of lamp beads 652 arranged around the lighting control circuit board 651 ; the lighting control circuit board 651 is in a bridge shape, and the number of lamp beads 652 is four.

[0054] like Fig.14 As shown, the first camera bracket 61 has a plurality of lamp holes 612 adapted to the lamp beads 652, and the lamp holes 612 are arranged around the first turning cavity 611. When the shooting camera 63 works at night, the control module 80 controls the lamp beads 652 to emit light, so that the shooting camera 63 can capture clear images.

[0055] In this embodiment, if Fig.17 As shown, the camera module 60 also includes a second camera bracket 66 fixedly connected to the first camera bracket 61. The second camera bracket 66 is cylindrical and has a shooting cavity 661. The cross-sectional size of the shooting cavity 661 gradually increases in the direction away from the first camera bracket 61, thereby increasing the shooting range of the shooting camera 63.

[0056] In this embodiment, combined with Fig.12 The camera module 60 also includes a transparent panel 67, which is disposed between the first camera bracket 61 and the second camera bracket 66. The transparent panel 67 may be a transparent glass, which can protect the shooting camera 63 and the lamp beads 652.

[0057] In this embodiment, the control module 80 is disposed in the box 100 and fixed to the first camera bracket 61 .

[0058] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A license plate recognition device, characterized in that: include: A box body, one side of which has a camera hole; A camera module is installed in the box and exposed at the camera hole; The camera module comprises: a first camera support having a first steering cavity; A shooting camera, comprising a lens and a rotating part arranged on one side of the lens; A steering body is sleeved on the periphery of the lens and fixedly connected to the lens. The steering body is accommodated in the first steering cavity. When the rotating part rotates, the steering body can rotate along the circumference of the first steering cavity.

2. The license plate recognition device according to claim 1, characterized in that: The steering body is spherical, and comprises a first steering portion and a second steering portion that are symmetrical to each other.

3. The license plate recognition device according to claim 1, characterized in that: The camera module also includes a bracket end cover, which is arranged on a side of the first camera bracket close to the shooting camera. The bracket end cover has a second steering cavity, which is connected to the first steering cavity to allow the steering body to rotate in the second steering cavity.

4. The license plate recognition device according to claim 1, characterized in that: The camera module further includes a light assembly, which includes a light control circuit board and a plurality of light beads arranged around the light control circuit board; The first camera bracket is provided with a plurality of lamp holes adapted to the lamp beads, and the lamp holes are arranged around the first turning cavity.

5. The license plate recognition device according to claim 4, characterized in that: The camera module also includes a second camera bracket fixedly connected to the first camera bracket. The second camera bracket is cylindrical and has a shooting cavity. The cross-sectional size of the shooting cavity gradually increases in a direction away from the first camera bracket.

6. The license plate recognition device according to claim 5, characterized in that: The camera module also includes a transparent panel, and the transparent panel is arranged between the first camera bracket and the second camera bracket.

7. The license plate recognition device according to any one of claims 1 to 6, characterized in that: The license plate recognition device also includes a control module, which is disposed in the box and fixed to the first camera bracket; the control module is electrically connected to the camera module.

8. The license plate recognition device according to claim 7, characterized in that: The license plate recognition device further includes a display module, which is disposed on the same side of the box as the camera module. The display module is electrically connected to the control module and is used to display the license plate.

9. The license plate recognition device according to claim 8, characterized in that: The license plate recognition device further includes a lighting module, which is arranged on the same side of the box as the camera module, and is electrically connected to the control module.

10. The license plate recognition device according to claim 9, characterized in that: A cooling fan is also arranged in the box body. The cooling fan is controlled by the control module and is arranged along the vertical direction of the box body.

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