Automatic iris focusing device

Abstract

The utility model discloses an automatic iris focusing device, which relates to the technical field of automatic iris focusing devices and comprises a fixing plate, a fixing frame is arranged at the lower end of the fixing plate, two groups of connecting lug plates are symmetrically arranged on the left side of the fixing plate, and second connecting frames are arranged on the outer walls of the connecting lug plates. A supporting frame is arranged between the two sets of second connecting frames, a second screw rod is arranged in the supporting frame, a first movable frame is arranged on the outer wall of the second screw rod, a first connecting frame is arranged on the outer wall of the first movable frame, a second motor is arranged at the lower end of the second screw rod, and four sets of mounting frame rods are symmetrically arranged on the outer wall of the supporting frame. According to the automatic iris focusing device, the inclination angle, the left-right position and the height of the iris camera body can be automatically adjusted, so that a user does not need to bend down or walk according to the position of the camera, the position of the iris camera body can be automatically adjusted, and iris details of the user can be conveniently captured.

Description

Technical Field

[0001] The utility model relates to the technical field of iris automatic focusing devices, in particular to an iris automatic focusing device. Background Art

[0002] Among the current biometric recognition technologies, iris recognition technology has the advantages of high accuracy, good uniqueness, strong anti-counterfeiting, and easy image processing, and has broad market application prospects. The steps of iris recognition generally include iris image acquisition, image preprocessing, iris positioning, liveness detection, feature extraction, and feature matching. Among them, iris image acquisition is a very important link.

[0003] When the existing iris automatic focusing device is installed and used, it is inconvenient to adjust the height of the iris camera according to the user's height, resulting in unclear camera shooting and affecting the recognition effect; since it is inconvenient to adjust the inclination angle of the iris camera, each user needs to adjust the position of the head to align the eyes with the camera, otherwise the eye details are easily blocked by the brim of the hat, etc.; since the horizontal position of the iris camera cannot be adjusted according to the user's standing position, each user also needs to adjust the position so that the iris camera can capture the iris details, which brings certain adverse effects to people's use process. In order to solve the shortcomings of the existing technology, we propose an iris automatic focusing device. Utility Model Content

[0004] The main purpose of the utility model is to provide an iris automatic focusing device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An iris automatic focusing device, comprising a fixed plate, a fixed frame is arranged at the lower end of the fixed plate, two groups of connecting ear plates are symmetrically arranged on the left side of the fixed plate, a second connecting frame is arranged on the outer wall of the connecting ear plate, a support frame is arranged between the two groups of the second connecting frames, a second screw is arranged inside the support frame, a first movable frame is arranged on the outer wall of the second screw, a first connecting frame is arranged on the outer wall of the first movable frame, a second motor is arranged at the lower end of the second screw, four groups of mounting frames are symmetrically arranged on the outer wall of the support frame, a first connecting rod is arranged on the outer wall of the second connecting frame, a circular hole with a coaxial center is arranged inside the connecting ear plate and the first movable frame, and the first connecting rod is penetrated into the circular hole;

[0007] Another group of first connecting frames is arranged at the upper end of the fixed plate, a supporting rod is arranged at the upper end of the fixed plate, connecting tubes are arranged at both ends of the supporting rod, a second connecting rod is arranged between the connecting tube and the first connecting frame, circular holes with coaxial centers are arranged inside the first connecting frame and the connecting tube, the second connecting rod is passed through the circular hole, an iris camera body is arranged at the lower end of the fixed frame, a first screw is arranged inside the fixed frame, a first motor is arranged at one end of the first screw, and a second movable frame is arranged between the first screw and the iris camera body.

[0008] Preferably, the first screw and the second movable frame are threadedly connected, the first movable frame and the second screw are threadedly connected, a rotation groove is provided between the second screw and the support frame, the second screw and the support frame are movably connected via the rotation groove, a rotation groove is provided between the first screw and the fixed frame, the first screw and the fixed frame are movably connected via the rotation groove, a screw is provided between the fixed frame and the fixed plate, and the fixed frame and the fixed plate are detachably connected via the screw.

[0009] Preferably, the first connecting frame and the fixed plate are welded, the first connecting frame and the connecting pipe are movably connected through the second connecting rod, the connecting ear plate and the second connecting frame are movably connected through the first connecting rod, limiting bolts are provided at both ends of the second connecting rod and the first connecting rod, and the connecting ear plate and the fixed plate are welded.

[0010] Preferably, the first connecting frame and the first movable frame are welded, the mounting frame and the supporting frame are welded, and four groups of screw holes are symmetrically arranged inside the mounting frame.

[0011] Preferably, the second connecting frame and the supporting frame are welded, an accommodating cavity is provided between the second motor and the supporting frame, and an accommodating cavity is provided between the first motor and the fixing frame.

[0012] Preferably, the iris camera body and the second movable frame are welded.

[0013] Beneficial Effects

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. In the utility model, the inclination angle and height of the iris camera body can be automatically adjusted by setting structures such as a fixing frame and a supporting rod, and the iris camera body can be driven to move left and right in cooperation with the first screw, so that the user does not need to bend down or walk according to the position of the camera. The iris camera body can automatically adjust its position, which is convenient for capturing the user's iris details and reduces the user's operating burden.

[0016] 2. In the present invention, the installation frame and other structures are provided to facilitate the user to install the iris camera body. The user only needs to install the installation frame on the wall with screws, which is relatively simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the combined structure of the first connecting frame and the fixing plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the combined structure of the support frame and the second motor of the utility model;

[0020] Figure 4 It is a schematic diagram of the combined structure of the fixing frame and the iris camera body of the utility model.

[0021] In the figure: 1. fixed plate; 2. support frame; 3. first connecting frame; 4. support rod; 5. connecting ear plate; 6. fixed frame; 7. iris camera body; 8. first motor; 9. first screw rod; 10. first movable frame; 11. second screw rod; 12. second connecting frame; 13. second motor; 14. first connecting rod; 15. connecting tube; 16. second connecting rod; 17. second movable frame; 18. mounting frame. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 4 As shown, an iris automatic focusing device, the first screw 9 and the second movable frame 17 are threadedly connected, the first movable frame 10 and the second screw 11 are threadedly connected, a rotation groove is provided between the second screw 11 and the support frame 2, the second screw 11 and the support frame 2 are movably connected through the rotation groove, a rotation groove is provided between the first screw 9 and the fixed frame 6, the first screw 9 and the fixed frame 6 are movably connected through the rotation groove.

[0024] The support frame 2 is installed on the wall through the mounting frame 18 and screws. When a user passes by the iris camera body 7, the iris camera body 7 adjusts its position to capture the user's iris details. The second motor 13 drives the second screw 11 to rotate, and the second screw 11 drives the first movable frame 10 to move up and down, thereby changing the angle between the connecting tube 15 and the first connecting frame 3, the connecting ear plate 5 and the second connecting frame 12, so that the fixed plate 1 changes its inclination and height.

[0025] like Figure 1-Figure 4As shown, the first connecting frame 3 and the connecting pipe 15 are movably connected through the second connecting rod 16, the connecting ear plate 5 and the second connecting frame 12 are movably connected through the first connecting rod 14, and limiting bolts are provided at both ends of the second connecting rod 16 and the first connecting rod 14.

[0026] The first motor 8 drives the first screw 9 to rotate, and the first screw 9 drives the second movable frame 17 to move left and right. According to the changed position of the fixing plate 1, the iris camera body 7 moves left and right, so that the camera can capture the user's iris details.

[0027] It should be noted that the utility model is an iris automatic focusing device. When in use, the support frame 2 is installed on the wall through the mounting frame 18 and screws. When a user passes by the iris camera body 7, the iris camera body 7 adjusts its position to capture the user's iris details, and the second motor 13 drives the second screw 11 to rotate, and the second screw 11 drives the first movable frame 10 to move up and down, thereby changing the angle between the connecting tube 15 and the first connecting frame 3, the connecting ear plate 5 and the second connecting frame 12, so that the fixed plate 1 changes the inclination and height.

[0028] The first motor 8 drives the first screw 9 to rotate, and the first screw 9 drives the second movable frame 17 to move left and right. According to the changed position of the fixing plate 1, the iris camera body 7 moves left and right, so that the camera can capture the user's iris details.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An iris automatic focusing device, comprising a fixing plate (1), characterized in that: A fixing frame (6) is arranged at the lower end of the fixing plate (1), two groups of connecting ear plates (5) are symmetrically arranged on the left side of the fixing plate (1), a second connecting frame (12) is arranged on the outer wall of the connecting ear plate (5), a supporting frame (2) is arranged between the two groups of the second connecting frames (12), a second screw rod (11) is arranged inside the supporting frame (2), a first movable frame (10) is arranged on the outer wall of the second screw rod (11), a first connecting frame (3) is arranged on the outer wall of the first movable frame (10), a second motor (13) is arranged at the lower end of the second screw rod (11), four groups of mounting frames (18) are symmetrically arranged on the outer wall of the supporting frame (2), a first connecting rod (14) is arranged on the outer wall of the second connecting frame (12), circular holes with coaxial centers are arranged inside the connecting ear plate (5) and the first movable frame (10), and the first connecting rod (14) is inserted into the circular hole; Another group of first connecting frames (3) is arranged at the upper end of the fixing plate (1), a supporting rod (4) is arranged at the upper end of the fixing plate (1), connecting tubes (15) are arranged at both ends of the supporting rod (4), a second connecting rod (16) is arranged between the connecting tube (15) and the first connecting frame (3), circular holes with coaxial centers are arranged inside the first connecting frame (3) and the connecting tube (15), the second connecting rod (16) is inserted into the circular hole, an iris camera body (7) is arranged at the lower end of the fixing frame (6), a first screw rod (9) is arranged inside the fixing frame (6), a first motor (8) is arranged at one end of the first screw rod (9), and a second movable frame (17) is arranged between the first screw rod (9) and the iris camera body (7).

2. The iris automatic focusing device according to claim 1, characterized in that: The first screw rod (9) and the second movable frame (17) are threadedly connected, the first movable frame (10) and the second screw rod (11) are threadedly connected, a rotation groove is provided between the second screw rod (11) and the support frame (2), and the second screw rod (11) and the support frame (2) are movably connected via the rotation groove, a rotation groove is provided between the first screw rod (9) and the fixed frame (6), and the first screw rod (9) and the fixed frame (6) are movably connected via the rotation groove, a screw is provided between the fixed frame (6) and the fixed plate (1), and the fixed frame (6) and the fixed plate (1) are detachably connected via the screw.

3. The iris automatic focusing device according to claim 1, characterized in that: The first connecting frame (3) and the fixed plate (1) are welded, the first connecting frame (3) and the connecting pipe (15) are movably connected via a second connecting rod (16), the connecting ear plate (5) and the second connecting frame (12) are movably connected via a first connecting rod (14), limiting bolts are provided at both ends of the second connecting rod (16) and the first connecting rod (14), and the connecting ear plate (5) and the fixed plate (1) are welded.

4. The iris automatic focusing device according to claim 1, characterized in that: The first connecting frame (3) and the first movable frame (10) are welded, the mounting frame (18) and the supporting frame (2) are welded, and four groups of screw holes are symmetrically arranged inside the mounting frame (18).

5. The iris automatic focusing device according to claim 2, characterized in that: The second connecting frame (12) and the supporting frame (2) are welded, an accommodating cavity is provided between the second motor (13) and the supporting frame (2), and an accommodating cavity is provided between the first motor (8) and the fixing frame (6).

6. The iris automatic focusing device according to claim 2, characterized in that: The iris camera body (7) and the second movable frame (17) are welded.

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