Vehicle passing management and control equipment integrated with license plate recognition camera and light supplementing lamp

Abstract

The utility model provides vehicle passing control equipment integrating a license plate recognition camera and a light supplement lamp, which comprises a host box body and a license plate recognition camera device which is arranged in the host box body and has a light supplement function, and the license plate recognition camera device with the light supplement function comprises a shell, a camera module and a light supplement module, and the camera module and the light supplement module are arranged in the shell; the camera module is used for shooting a license plate image, and the light supplementing module is used for illuminating a license plate; the light supplementing module is arranged near the camera module; the problems that a light supplementing lamp on vehicle passing management and control equipment is dazzling, traffic safety is affected, the integration level is low, power consumption is large, and control is not easy are solved.

Description

Technical Field

[0001] This invention belongs to the technical field of parking lot management equipment, specifically relating to a vehicle access control device that integrates a license plate recognition camera and a supplementary light. Background Technology

[0002] In parking lots, vehicle access control equipment is used to identify license plates of passing vehicles and control vehicle access based on the identification results. In environments with poor lighting conditions, license plate recognition requires additional supplementary lighting. In existing vehicle access control equipment, the license plate recognition camera is located on the upper part of the equipment, while the supplementary lighting is located on the lower part, resulting in low integration, low reliability, and complex installation. Utility Model Content

[0003] The purpose of this invention is to provide a vehicle access control device that integrates a license plate recognition camera and a supplementary light, thereby solving the problems of the supplementary light on the vehicle access control device being too glaring, affecting traffic safety, and having low integration, high power consumption, and being difficult to control.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a vehicle access control device integrating a license plate recognition camera and a supplementary light, comprising a main unit housing and a license plate recognition camera device with supplementary light disposed in the main unit housing, wherein the license plate recognition camera device with supplementary light comprises a housing and a camera module and a supplementary light module disposed within the housing; the camera module is used to capture license plate images, and the supplementary light module is used to illuminate the license plate; the supplementary light module is disposed near the camera module.

[0005] Optionally, the light color temperature range provided by the supplementary lighting module is 3000K-4500K.

[0006] Optionally, there are two supplementary lighting modules, which are respectively located on both sides of the camera module.

[0007] Optionally, multiple supplementary lighting modules are provided and arranged around the camera module.

[0008] Optionally, several supplementary lighting modules are provided and disposed on one side of the camera module.

[0009] Optionally, the light-incident surface of the camera module is provided with a first light-transmitting sheet, and the light-exiting surface of the supplementary light module is provided with a second light-transmitting sheet.

[0010] Optionally, the light-incident surface of the camera module and the light-exit surface of the supplementary light module are disposed on the same plane of the housing, and a non-transparent interval is provided between the first light-transmitting sheet and the second light-transmitting sheet.

[0011] Optionally, the light-incident surface of the camera module and the light-exit surface of the supplementary light module are arranged in a stepped manner on one side of the housing, wherein the light-incident surface of the camera module protrudes outward relative to the light-exit surface of the supplementary light module.

[0012] Optionally, the front of the housing is provided with a camera module receiving hole and a supplementary light module receiving hole. A non-transparent protrusion is provided on the front of the housing between the camera module receiving hole and the supplementary light module receiving hole. The non-transparent protrusion divides the front of the housing into a first part and a second part. The first light-transmitting sheet covers the first part of the front of the housing, and the second light-transmitting sheet covers the second part of the front of the housing.

[0013] Optionally, the second light-transmitting sheet is provided with a light-shielding area, which is used to block the light emitted from the light-emitting area of ​​the supplementary light module from the outside to the inside.

[0014] Optionally, the light-shielding area is coated with one or more layers of translucent film.

[0015] Optionally, the light-shielding area is covered with one or more layers of translucent coating.

[0016] Optionally, the matrix layer of the second light-transmitting sheet in the light-blocking area is transparent, gray, or brown.

[0017] Optionally, the main unit enclosure is an access control control unit enclosure or an integrated access control gate control unit enclosure.

[0018] After adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0019] This solution integrates the camera module and the supplementary lighting module into a single license plate recognition camera device housed within the casing, thereby improving the integration of the vehicle access control equipment. Furthermore, since the supplementary lighting module of the license plate recognition camera device is located near the camera module, the shooting angle and the supplementary lighting angle remain consistent or approximately the same, improving the image quality of the license plate. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the chassis structure of a vehicle access control device integrating a license plate recognition camera and a supplementary light, according to Embodiment 1 of this utility model.

[0022] Figure 2This is a schematic diagram of the gate box structure of a vehicle access control device integrating a license plate recognition camera and a supplementary light according to Embodiment 1 of this utility model;

[0023] Figure 3 yes Figure 1 Schematic diagram of a partial cross-section of the structure;

[0024] Figure 4 yes Figure 3 Installation diagram of the outer casing;

[0025] Figure 5 yes Figure 3 Installation diagram inside the middle shell;

[0026] Figure 6 yes Figure 3 Schematic diagram of the middle shell structure;

[0027] Figure 7 yes Figure 5 Layout diagram of the center supplementary lighting module;

[0028] Figure 8 This is a diagram showing the arrangement of the supplementary lighting module in Embodiment 2 of the vehicle access control device integrating a license plate recognition camera and a supplementary light according to this utility model.

[0029] Figure 9 This is a diagram showing the arrangement of the supplementary lighting module in Embodiment 3 of a vehicle traffic control device integrating a license plate recognition camera and a supplementary light.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Lighting module; 2. Camera module; 3. First light-transmitting sheet; 4. Second light-transmitting sheet; 41. Through hole; 42. Light-shielding area; 5. Housing; 51. Lighting module receiving hole; 52. Camera module receiving hole; 53. Non-transparent interval; 531. Non-transparent protrusion; 54. Frame; 55. Light-emitting surface of the lighting module; 56. Light-incident surface of the camera module; 6. Waterproof gasket; 7. Bottom shell; 8. Wiring hole; 9. Waterproof light shield; 10. Main unit housing. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.

[0034] Example 1:

[0035] A vehicle access control device integrating a license plate recognition camera and a supplementary light, specifically as follows: Figure 1 As shown, the device includes a main unit housing 10 and a license plate recognition camera with supplementary lighting installed in the main unit housing 10, facilitating vehicle management at parking lot entrances. The license plate recognition camera includes a housing 5 and a camera module 2 and a supplementary lighting module 1 installed within the housing 5. The camera module 2 is used to capture license plate images, and the supplementary lighting module 1 is used to illuminate the license plate. The supplementary lighting module 1 is located near the camera module 2; optionally, the distance between the supplementary lighting module 1 and the camera module 2 is set to 0.5cm-20cm. The supplementary lighting modules 1 are symmetrically arranged on both sides of the camera module 2. The camera module 2 and the supplementary lighting module 1 are housed within the housing 5, specifically as follows... Figure 3 and Figure 4 As shown, a waterproof sunshade 9 is provided on the side of the housing 5 facing the vehicle, and a bottom shell 7 is provided on the side of the housing away from the vehicle. The housing is connected to the waterproof sunshade 9 and the bottom shell 7 respectively, and then installed on the main unit housing 10. In this embodiment, the main unit housing 10 is an integrated access control unit housing. In some embodiments, specifically as shown... Figure 2 As shown, the main unit housing 10 can also be a gate housing; specifically, the camera module 2 captures images through the housing 5, and the supplementary light module 1 provides supplementary light through the housing 5. The camera module 2 and the supplementary light module 1 are integrated inside the housing 5, which simplifies the structure. At the same time, the camera module 2 and the supplementary light module 1 are controlled synchronously, which makes the license plate recognition effect better in dark environments.

[0036] Furthermore, a waterproof gasket 6 is provided on the back of the camera module 2. The waterproof gasket 6 is located inside the bottom shell 7. A wire hole 8 is also provided on the bottom shell 7. The bottom shell 7 and the housing 5 are connected and fixed. A waterproof sunshade 9 is also provided on the side of the housing 5 facing the vehicle, which can further improve the supplementary lighting effect.

[0037] Optionally, the light color temperature range provided by the supplementary lighting module 1 is 3000K-4500K. Specifically, the preferred color temperature value is 3500K, and the commonly used range is 3500K-4100K. This provides the best supplementary lighting effect in dark environments while avoiding glare and reducing power consumption. Controlling the color temperature value within this range allows the license plate to have a higher light reflectivity, thereby reducing the brightness of the supplementary lighting and improving the license plate recognition rate.

[0038] Optionally, specifically as follows Figure 5 As shown, there are two supplementary lighting modules 1, which are respectively located on both sides of the camera module 2. The supplementary lighting module 1 of this application is a low-power supplementary lighting lamp, for example, the power of a single supplementary lighting lamp bead is controlled within 1.5W, thereby reducing power consumption and reducing interference to the car owner.

[0039] Optionally, the light-incident surface 56 of the camera module is provided with a first light-transmitting sheet 3, and the light-emitting surface of the supplementary light module 1 is provided with a second light-transmitting sheet 4.

[0040] Optionally, the light-incident surface 56 of the camera module and the light-outceasing surface 55 of the supplementary light module are disposed on the same plane of the housing 5, and a non-transparent gap 53 is provided between the first light-transmitting sheet 3 and the second light-transmitting sheet 4.

[0041] Optionally, the light-incident surface 56 of the camera module and the light-emitting surface 55 of the supplementary light module are arranged in a stepped manner on one side of the housing 5, wherein the light-incident surface 56 of the camera module protrudes outward relative to the light-emitting surface 55 of the supplementary light module.

[0042] Optionally, specifically as follows Figure 6 and Figure 7 As shown, the front of the housing 5 is provided with a camera module receiving hole 52 and a supplementary light module receiving hole 51. A non-transparent protrusion 531 is provided between the camera module receiving hole 52 and the supplementary light module receiving hole 51 on the front of the housing 5. The non-transparent protrusion 531 divides the front of the housing 5 into a first part and a second part. The first light-transmitting sheet 3 covers the first part of the front of the housing 5, and the second light-transmitting sheet 4 covers the second part of the front of the housing 5.

[0043] The housing 5 has a camera module receiving hole 52 and a supplementary light module receiving hole 51 on the side facing the vehicle. The camera module receiving hole 52 is positioned to accommodate the camera module 2, and the supplementary light module receiving hole 51 is positioned to accommodate the supplementary light module 1. The camera module receiving hole 52 is located in the center of the housing 5 to ensure the optimal viewing angle of the camera module 2 and improve the license plate recognition effect. The supplementary light module receiving holes 51 are symmetrically arranged on both sides of the camera module receiving hole 52 to supplement the license plate area from both sides and improve the license plate recognition effect. The camera module receiving hole 52 is located on the light-incident surface 56 of the camera module, and the supplementary light module receiving hole 51 is located on the light-exit surface 55 of the supplementary light module. A non-transparent partition 53 is provided between the light-incident surface 56 of the camera module and the light-outceasing surface 55 of the supplementary light module to block light from the light-outceasing surface 55 of the supplementary light module from entering the light-incident surface 56 of the camera module, thus affecting the license plate recognition effect. In this embodiment, the non-transparent partition 53 is a non-transparent protrusion 531, which is integrally formed with the housing 5, with simple process and low cost. The non-transparent protrusion 531 surrounds the camera module receiving hole 52, and separates the light-incident surface 56 of the camera module and the light-outceasing surface 55 of the supplementary light module, so that the light from the light-outceasing surface 55 of the supplementary light module cannot enter the light-incident surface 56 of the camera module, avoiding stray light interference and greatly improving the recognition effect of the camera module 2.

[0044] The non-opaque protrusion 531 divides the front of the housing 5 into a first part and a second part. The first part covers the area of ​​the camera module receiving hole 52 and is provided with a first light-transmitting sheet 3. The first light-transmitting sheet 3 can protect the camera module 2 set in the camera module receiving hole 52 from damage and contamination, and at the same time can increase the amount of light entering and improve the license plate recognition effect. The second part covers the area of ​​the supplementary light module receiving hole 51 and is provided with a second light-transmitting sheet 4. The second light-transmitting sheet 4 can include the supplementary light module 1 set in the supplementary light module receiving hole 51 from damage and contamination, and at the same time can increase the amount of light emitted, further improving the license plate recognition effect. The first light-transmitting sheet 3 and the second light-transmitting sheet 4 are separated by the non-opaque protrusion 531. The first light-transmitting sheet 3 is set inside the second light-transmitting sheet 4. The height of the non-opaque protrusion 531 is greater than the thickness of the first light-transmitting sheet 3 and the second light-transmitting sheet 4, which can effectively prevent the light from the area of ​​the supplementary light module 1 from entering the area of ​​the camera module 2 and interfering with the license plate recognition.

[0045] Furthermore, the size of the camera module receiving hole 52 is smaller than the size of the opaque protrusion 531, and the size of the camera module receiving hole 52 is larger than the size of the camera module 2. A light-incident surface 56 is formed between the camera module receiving hole 52 and the opaque protrusion 531. The light-incident surface 56 supports the installation of the first light-transmitting sheet 3. The size of the first light-transmitting sheet 3 matches the internal size of the opaque protrusion 531, and the first light-transmitting sheet 3 is snapped onto the opaque protrusion 531. The interior of the housing 5 is covered by the light-incident surface 56 of the camera module; a frame 54 is provided around the front of the housing 5, and a light-emitting surface 55 of the supplementary light module is formed between the non-transparent protrusion 531 and the frame 54. The light-emitting surface 55 of the supplementary light module is lower than the height of the non-transparent protrusion 531 and the frame 54. The light-emitting surface 55 of the supplementary light module provides support for the second light-transmitting sheet 4. The second light-transmitting sheet 4 is snapped between the frame 54 and the non-transparent protrusion 531 and covers the area of ​​the light-emitting surface 55 of the supplementary light module.

[0046] Furthermore, the second light-transmitting sheet 4 is provided with a through hole 41 corresponding to the position of the non-transparent protrusion 531. The inner diameter of the through hole 41 matches the outer diameter of the non-transparent protrusion 531. The through hole 41 is used to accommodate the non-transparent protrusion 531 and the first light-transmitting sheet 3. The second light-transmitting sheet 4 is also provided with a light-shielding area 42 corresponding to the area of ​​the supplementary light module 1. The area of ​​the light-shielding area 42 is larger than the area of ​​the supplementary light module receiving hole 51, which can effectively block the light emitted by the supplementary light module 1. The light-shielding area 42 can block the light-emitting area of ​​the supplementary light module 1 to avoid interfering with the driver's vision.

[0047] Optionally, the second light-transmitting sheet 4 is provided with a light-shielding area 42, which is used to block the light propagating from the outside to the inside of the light-emitting area of ​​the supplementary light module 1.

[0048] Optionally, the light-shielding area 42 is coated with one or more layers of translucent film.

[0049] Optionally, the light-shielding area 42 is fitted with one or more layers of translucent film.

[0050] Optionally, the matrix layer of the second light-transmitting sheet 4 at the light-shielding area 42 is transparent, gray, or brown.

[0051] This embodiment also provides a vehicle access control device integrating a license plate recognition camera and a supplementary light. The main unit housing 10 is either an access control control unit housing or an integrated access control gate control unit housing. The structure of the access control control unit housing can be found in [reference needed]. Figure 1 The structure of the access control gate integrated control unit can be found in [reference]. Figure 2 .

[0052] Example 2:

[0053] like Figure 8 As shown, the difference between this embodiment and embodiment 1 is that the supplementary lighting module 1 is set to 4 and arranged around the camera module 2, which can adapt to different lighting environments; the light-blocking area 42 on the second light-transmitting sheet 4 is also changed accordingly; in some embodiments, the number of supplementary lighting modules 1 can be changed to adopt a surrounding arrangement to adapt to different lighting environments, so that the supplementary lighting module 1 does not interfere with the camera module 2, and avoids the supplementary lighting module 1 from being dazzling, which can improve the license plate recognition effect.

[0054] Example 3:

[0055] like Figure 9 As shown, the difference between this embodiment and embodiment 1 is that the supplementary light module 1 is set to 9, and is set on one side of the camera module 2. The light-blocking area 42 on the second light-transmitting sheet 4 is also changed accordingly, which can adapt to different lighting environments. In some embodiments, the number of supplementary light modules 1 can be changed and a single-sided arrangement can be adopted to adapt to different lighting environments, so that the supplementary light module 1 does not interfere with the camera module 2 and avoids the supplementary light module 1 from being glaring, which can improve the license plate recognition effect.

[0056] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A vehicle pass control device integrating a license plate recognition camera and a light compensation lamp, characterized in that, The device includes a main unit housing (10) and a license plate recognition camera with supplementary lighting installed in the main unit housing (10). The license plate recognition camera includes a housing (5) and a camera module (2) and a supplementary lighting module (1) installed in the housing (5). The camera module (2) is used to capture license plate images, and the supplementary lighting module (1) is used to illuminate the license plate. The supplementary lighting module (1) is located near the camera module (2). The light-incident surface (56) of the camera module is provided with a first light-transmitting sheet (3), and the light-emitting surface of the supplementary lighting module (1) is provided with a second light-transmitting sheet (4). The second light-transmitting sheet (4) is provided with a light-shielding area (42), and the light-shielding area (42) blocks the light-emitting area of ​​the supplementary lighting module (1).

2. The vehicle access control device integrated with a license plate recognition camera and a light compensation lamp according to claim 1, characterized in that, The light color temperature range provided by the supplementary lighting module (1) is 3000K-4500K. 3.The vehicle pass control device integrated with a license plate recognition camera and a light compensation lamp according to claim 1 or 2, characterized in that, The supplementary lighting module (1) has two parts, which are respectively located on both sides of the camera module (2).

4. The vehicle access control device integrated with a license plate recognition camera and a light compensation lamp according to claim 1 or 2, characterized in that, The supplementary lighting module (1) is provided in multiple units and arranged around the camera module (2). 5.The vehicle pass control device with integrated license plate recognition camera and light supplement lamp according to claim 1 or 2, characterized in that, The supplementary lighting module (1) is provided in several units and is located on one side of the camera module (2).

6. The vehicle access control device integrated with a license plate recognition camera and a light compensation lamp according to claim 5, characterized in that, The light-incident surface (56) of the camera module and the light-outceasing surface (55) of the supplementary light module are disposed on the same plane of the housing (5), and a non-transparent gap (53) is provided between the first light-transmitting sheet (3) and the second light-transmitting sheet (4).

7. The vehicle access control device integrated with a license plate recognition camera and a light compensation lamp according to claim 5, characterized in that, The light-incident surface (56) of the camera module and the light-outceasing surface (55) of the supplementary light module are arranged in a stepped manner on one side of the housing (5), wherein the light-incident surface (56) of the camera module protrudes outward relative to the light-outceasing surface (55) of the supplementary light module. 8.The vehicle pass control device with integrated license plate recognition camera and light supplement lamp according to claim 6, characterized in that, The front of the housing (5) is provided with a camera module receiving hole (52) and a supplementary light module receiving hole (51). A non-transparent protrusion (531) is provided between the camera module receiving hole (52) and the supplementary light module receiving hole (51) on the front of the housing (5). The non-transparent protrusion (531) divides the front of the housing (5) into a first part and a second part. The first light-transmitting sheet (3) covers the first part of the front of the housing (5), and the second light-transmitting sheet (4) covers the second part of the front of the housing (5). 9.The vehicle pass control device with integrated license plate recognition camera and light supplement lamp according to claim 5, wherein, The light-blocking area (42) is used to block the light from the outside to the inside of the light-emitting area of ​​the supplementary light module (1). 10.The vehicle pass control device with integrated license plate recognition camera and light supplement lamp according to claim 9, wherein, The light-shielding area (42) is coated with one or more layers of translucent film.

11. The vehicle access control device integrated with a license plate recognition camera and a light compensation lamp according to claim 9, characterized in that, The light-shielding area (42) is covered with one or more layers of semi-transparent film.

12. The vehicle access control device integrated with a license plate recognition camera and a light compensation lamp according to claim 9, characterized in that, The matrix layer of the second light-transmitting sheet (4) in the light-shielding area (42) is transparent, gray, or brown. 13.The vehicle pass control device of claim 1 or 2, wherein The main unit housing (10) is a passage control control housing or a passage control gate control integrated housing.

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