License plate recognition device and curbstone machine

Abstract

The utility model discloses a license plate recognition device which comprises a shell with an inner containing cavity, a camera shooting hole is formed in the surface of the shell, a camera shooting assembly is fixedly arranged in the inner containing cavity, a lens of the camera shooting assembly right faces the camera shooting hole, and a protective cover capable of being opened and closed along the plane is arranged between the lens and the camera shooting hole. The protective cover is attached to the inner wall of the shell and is suitable for opening or closing the camera hole through opening and closing movement. The protective cover capable of being opened and closed is additionally arranged between the camera hole and the camera lens of the camera assembly, so that the camera hole is closed through the protective cover when the camera lens is not used, the effect of protecting the camera lens of the internal camera assembly is achieved, normal use of the camera lens is not affected, the fault occurrence rate is reduced, and the service life is prolonged. The service life of the license plate recognition device is prolonged, and after-sales maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of curb machines, in particular to a license plate recognition device and a curb machine. Background Art

[0002] In recent years, with the rapid development of the automotive industry, the parking problem has become increasingly serious. More and more roadside parking spaces have been demarcated. However, most of these parking spaces require manual toll collection, and it often happens that vehicle owners evade tickets when the manual toll collection is not in place. More and more parking spaces are equipped with curb machines. As the name implies, a curb machine is an automatic vehicle locking device installed on the curb of a side parking space, which does not affect traffic and is relatively easy to install without damaging the ground. It records vehicle information through a license plate recognition device installed on it and transmits it to the background for fare calculation. When the vehicle is parked, the blocking arm of the curb machine extends out and blocks between the front and rear wheels of the vehicle, thus realizing the vehicle locking function. When picking up the vehicle, the user pays by scanning the payment QR code on the curb machine with the mobile phone, and the blocking arm retracts to complete the unlocking.

[0003] The curb machine with the above structure gradually exposes the following defects after being put into use:

[0004] 1. After the lens of the license plate recognition device is used for a period of time, a lot of dust or foreign objects will accumulate on its surface, affecting the reliability of automatic recognition and even making it unusable;

[0005] 2. Since it is installed on the curb and very close to the ground, small stones on the road surface are easily bounced up when the vehicle passes by or during the parking process and hit the lens of the license plate recognition device, causing damage to the lens.

[0006] Due to the failure of the license plate recognition device, a large amount of manpower and material resources have been invested in later maintenance, and at the same time, the curb machine cannot be used normally, becoming a mere formality, bringing greater losses to parking lot management merchants. Content of the Utility Model

[0007] The purpose of the utility model is to provide a license plate recognition device and a curb machine for the deficiencies of the prior art, effectively protecting the lens of the license plate recognition device, not affecting the normal use of the lens at the same time, reducing the failure rate, prolonging the service life of the license plate recognition device, and reducing the after-sales maintenance cost.

[0008] The technical solution to achieve the purpose of the utility model is:

[0009] A license plate recognition device includes a housing with a content cavity. A camera hole is provided on the surface of the housing. A camera assembly is fixedly arranged in the content cavity. The lens of the camera assembly faces the camera hole, and a protective cover that can be opened and closed along a plane is arranged between the lens and the camera hole. The protective cover is attached to the inner wall of the housing and is adapted to open or close the camera hole through an opening and closing movement.

[0010] Further, the protective cover is arranged to be openable and closable in a linear direction.

[0011] Further, a slide rail frame surrounding the camera hole is fixedly installed on the inner wall of the outer shell. The corresponding sides of the two symmetric sides of the protective cover are respectively in sliding fit with the corresponding sides of the slide rail frame. A driving component is connected to the side of the protective cover perpendicular to the sliding direction, and the protective cover moves linearly along the slide rail frame through the driving component.

[0012] Further, the driving component is a micro telescopic push rod fixedly arranged in the content cavity. The upper and lower sides of the protective cover are in sliding fit with the slide rail frame, and flexible connecting lines and elastic reset components are fixedly connected between the output ends of the micro telescopic push rod and the slide rail frame on the left and right sides respectively.

[0013] Further, the elastic reset component is a spring.

[0014] Further, the micro telescopic push rod is fixedly installed at the bottom of the content cavity. A lead outlet with a right angle channel is arranged on the side of the slide rail frame. A plurality of R-shaped wire clips are arranged on the inner wall of the outer shell. The flexible connecting line is limited in path through the R-shaped wire clips and forms an angle of not less than 90° at the turning point.

[0015] Further, steps are arranged on both the upper and lower sides of the slide rail frame, so as to form a chute with the inner wall of the outer shell. The top and bottom of the protective cover are inserted into the chute with a gap, and a plurality of outward protruding limit blocks are arranged on the side away from the inner wall of the outer shell. The limit blocks are distributed in a linear direction and form limit surfaces respectively adapted to the upper and lower sides of the slide rail frame.

[0016] Further, the protective cover is arranged to be openable and closable in a rotational direction.

[0017] Further, a micro motor is fixedly installed in the content cavity. The motor shaft of the micro motor vertically penetrates the protective cover and is fixedly connected to the protective cover. An arc-shaped guide rail fixedly installed on the inner wall of the outer shell is arranged on the side of the camera hole. An arc-shaped edge adapted to the arc-shaped guide rail is arranged on the side of the protective cover corresponding to the arc-shaped guide rail.

[0018] Further, the micro motor is pre-installed in the camera assembly.

[0019] A curb machine includes the license plate recognition device as described above.

[0020] Adopting the above technical solution, the utility model has the following beneficial effects:

[0021] (1) The utility model adds an openable and closable protective cover between the camera hole and the lens of the camera component, so that when the lens is not needed, the camera hole is closed by the protective cover, achieving the function of protecting the lens of the internal camera component. At the same time, it does not affect the normal use of the lens, reduces the failure rate, prolongs the service life of the license plate recognition device, and reduces the after-sales maintenance cost.

[0022] (2) The utility model provides two different protective cover opening and closing structures for manufacturers to choose. One drives the protective cover to slide in a straight line direction to close the camera hole through a driving component, and the other drives the protective cover to rotate to close the camera hole through a motor. It can be selected according to the specific installation of the housing and the camera component, and the selection is flexible.

[0023] (3) The utility model uses a micro telescopic push rod to pull the protective cover to translate in one direction through a flexible connecting wire, and when the pulling force is withdrawn, the protective cover is driven by an elastic resetting part to translate in the opposite direction, so as to realize the reciprocating movement in a straight line direction and complete the opening and closing of the camera hole. The structure is simple and the action is reliable.

[0024] (4) The utility model limits the path of the flexible connecting wire through the lead wire port and the R-shaped wire clip, which can not only avoid interference with other components, but also avoid the pulling force being too laborious due to too small an angle at the turning point of the flexible connecting wire, and improve the sliding smoothness of the protective cover.

[0025] (5) The utility model ensures by setting a limit block to avoid the protective cover jumping up and down during the sliding process, and further improves the sliding smoothness of the protective cover.

[0026] (6) The rotating protective cover structure of the utility model pre-assembles the motor in the camera component to form a modular structure, which is convenient for assembly. Description of the Drawings

[0027] In order to make the content of the utility model easier to be clearly understood, the following further details the utility model according to specific embodiments in combination with the drawings, where:

[0028] Figure 1 It is a schematic structural diagram of Embodiment 1;

[0029] Figure 2 It is a schematic structural diagram of Embodiment 1 after removing the camera component;

[0030] Figure 3 It is a schematic structural diagram of the cooperation between the protective cover and the slide rail frame of Embodiment 1;

[0031] Figure 4 It is a schematic structural diagram of Embodiment 2;

[0032] Figure 5Schematic diagram of the mating structure between the protective cover and the arc-shaped guide rail in Embodiment 2.

[0033] The reference numerals in the drawings are:

[0034] Housing 1, camera hole 1-1, camera assembly 2, protective cover 3, limit block 3-1, arc edge 3-2, slide rail frame 4, step 4-1, lead outlet 4-2, drive assembly 5, flexible connecting line 6, elastic reset member 7, R-shaped wire clip 8, micro motor 9, arc-shaped guide rail 10. Detailed implementation manners

[0035] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the drawings in the specification and specific implementation manners.

[0036] (Embodiment 1)

[0037] The curb machine in this embodiment adopts a license plate recognition device as shown in Figures 1 to 3 which includes a housing 1, a camera assembly 2 and a protective cover 3. The housing 1 has a content cavity, and a camera hole 1-1 is provided on the surface. The camera assembly 2 is fixedly installed in the content cavity, and the lens of the camera assembly 2 faces the camera hole 1-1. The protective cover 3 is arranged between the camera hole 1-1 and the lens and can be opened and closed in a plane. Thus, when the lens is not needed, the camera hole 1-1 can be closed by the protective cover 3, so as to protect the lens of the internal camera assembly 2. At the same time, it will not affect the normal use of the lens, reduce the failure rate, extend the service life of the license plate recognition device, and reduce the after-sales maintenance cost.

[0038] Specifically, a slide rail frame 4 surrounding the camera hole is fixedly installed on the inner wall of the housing 1. The slide rail frame 4 is a rectangular structure, and steps 4-1 are provided on both the upper and lower sides, so as to form a chute with the inner wall of the housing 1. The protective cover 3 is also a rectangular structure, and the top and bottom are embedded in the chute with a gap, so as to achieve a sliding fit. In order to improve the stability during the sliding process, a plurality of outwardly protruding limit blocks 3-1 are provided on the sides of the top and bottom of the protective cover 3 in this embodiment that are far from the inner wall of the housing 1, and the limit blocks 3-1 are distributed in a straight line direction, so as to form limit surfaces that respectively match the upper and lower sides of the slide rail frame 4, and prevent the protective cover 3 from bouncing up and down during the sliding and translation process.

[0039] A driving component 5 is fixedly installed at the bottom of the content cavity. In this embodiment, a micro telescopic push rod is preferably used. The output end of the micro telescopic push rod is fixedly connected with a flexible connecting line 6, and the other end of the flexible connecting line 6 is fixedly connected with the left side of the protection cover 3, so as to be able to pull the protection cover 3 to move leftward. An elastic resetting member 7 is fixedly connected between the right side of the protection cover 3 and the right side of the slide rail frame 4, so that when the pulling force on the left side of the protection cover 3 is withdrawn, the protection cover 3 can be pulled to move rightward to realize reset, and cooperate with the micro telescopic push rod to realize the opening and closing actions of the protection cover 3. The elastic resetting member 7 in this embodiment is preferably a spring, with a simple structure and low manufacturing cost. In order to ensure that the flexible connecting line 6 can be smoothly pulled, in this embodiment, a lead outlet 4-2 with a right-angle channel is provided on the side of the slide rail frame 4, and a plurality of R-shaped wire clips 8 are provided on the inner wall of the outer shell 1. The flexible connecting line 6 passes through the R-shaped wire clips 8 and the lead outlet 4-2 in sequence and then is fixedly connected with the protection cover 3, so as to limit the path, ensure that the flexible connecting line 6 forms an angle of not less than 90° at the turning point, avoid the angle at the turning point of the flexible connecting line 6 being too small and causing difficult pulling, and improve the sliding smoothness of the protection cover.

[0040] (Embodiment 2)

[0041] The structure of this embodiment is similar to that of Embodiment 1, and the difference is that as Figures 4 to 5 shown, a micro motor 9 is fixedly installed in the content cavity. The micro motor 9 is pre-installed in the camera assembly to form a modular integral structure, which is convenient for assembly. The motor shaft vertically penetrates through the protection cover 3 and is fixedly connected with the protection cover 3, so as to drive the protection cover 3 to realize rotational motion. Above the camera hole 1-1, an arc-shaped guide rail 10 fixedly installed on the inner wall of the outer shell 1 is provided. The top side of the protection cover 3 is provided with an arc-shaped edge 3-2 adapted to the arc-shaped guide rail. The arc-shaped edge 3-2 is slidably matched with the arc-shaped guide rail 10, so as to realize a smooth opening and closing motion, and further realize closing and opening the camera hole 1-1.

[0042] By arranging an openable and closable protection cover 3 between the camera hole 1-1 and the lens of the camera assembly 2, the present invention closes the camera hole 1-1 through the protection cover 3 when the lens is not needed, so as to protect the lens of the internal camera assembly 2, and at the same time does not affect the normal use of the lens, reduces the failure rate, prolongs the service life of the license plate recognition device, and reduces the after-sales maintenance cost.

[0043] The above specific embodiments have further elaborated the purpose, technical solution and beneficial effects of the present invention. It should be understood that the above is only the specific embodiments of the present invention and is not used to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A license plate recognition device, characterized in that: It comprises a shell with an inner cavity, a camera hole is arranged on the surface of the shell, a camera assembly is fixedly arranged in the inner cavity, a lens of the camera assembly faces the camera hole and a protective cover which can be opened and closed along a plane is arranged between the camera hole and the protective cover is fitted with the inner wall of the shell and is suitable for opening or closing the camera hole by an opening and closing movement.

2. A license plate recognition device according to claim 1, characterized in that: The protection cover can be opened and closed along a straight line.

3. A license plate recognition device according to claim 2, characterized in that: A slide rail frame surrounding the camera hole is fixedly installed on the inner wall of the shell, and the symmetrical two sides of the protective cover are respectively slidably matched with the corresponding sides of the slide rail frame. The side of the protective cover perpendicular to the sliding direction is connected to a driving component and moves linearly along the slide rail frame through the driving component.

4. A license plate recognition device according to claim 3, characterized in that: The driving component is a micro telescopic push rod fixedly arranged in the inner cavity, the upper and lower sides of the protective cover are slidably matched with the slide rail frame, and the left and right sides are respectively fixedly connected with flexible connecting lines and elastic reset parts between the output end of the micro telescopic push rod and the slide rail frame.

5. A license plate recognition device according to claim 4, characterized in that: The miniature telescopic push rod is fixedly installed at the bottom of the inner cavity, the side of the slide rail frame is provided with a lead-in port with a right-angle channel, the inner wall of the shell is provided with a plurality of R-shaped wire clamps, and the flexible connecting wire is limited in path by the R-shaped wire clamps and forms an angle of not less than 90° at the turning point.

6. A license plate recognition device according to claim 4, characterized in that: The upper and lower sides of the slide rail frame are provided with steps to form a slide groove with the inner wall of the shell. The top and bottom gaps of the protective cover are embedded in the slide groove and a plurality of outwardly protruding limit blocks are provided on the side away from the inner wall of the shell. The limit blocks are distributed in a straight line direction to form limit surfaces respectively matched with the upper and lower sides of the slide rail frame.

7. A license plate recognition device according to claim 1, characterized in that: The protection cover can be opened and closed along the rotation direction.

8. A license plate recognition device according to claim 7, characterized in that: A micro motor is fixedly installed in the inner cavity, and the motor shaft of the micro motor vertically penetrates the protective cover and is fixedly connected to the protective cover. The side of the camera hole is provided with an arc guide rail fixedly installed on the inner wall of the outer shell, and the side of the protective cover corresponding to the arc guide rail is provided with an arc edge adapted to the arc guide rail.

9. A license plate recognition device according to claim 8, characterized in that: The micro motor is pre-installed in the camera assembly.

10. A road curb machine, characterized in that: It comprises a license plate recognition device as claimed in any one of claims 1 to 9.

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