Iris acquisition module

Abstract

The utility model relates to the related technical field of iris recognition, and discloses an iris acquisition module which comprises a fixing frame and a driving mechanism, a supporting frame is installed on one side of the surface of the fixing frame, an anti-theft fixing hole is formed in one side of the surface of the fixing frame, and installation fixing holes are formed in the two ends of the fixing frame. A collecting mechanism is arranged on one side of the surface of the supporting frame, and a driving mechanism is arranged on one side of the surface of the fixing frame. According to the iris acquisition module, through the arrangement of the motor, the limiting stopper, the connecting piece, the transmission piece, the rotating shaft and the bearing, when the iris acquisition module is used, the motor works to drive the transmission piece to rotate, the bearing sleeves the surface of the rotating shaft and is installed in the connecting piece, the motor is installed on the surface of the fixing frame, and the transmission piece is installed on the surface of the supporting frame; the motor drives the transmission part to rotate so as to drive the collection mechanism to rotate, and the limiter can control the rotation range of the motor. According to the iris acquisition module, the iris acquisition efficiency is improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of iris recognition technology, and in particular to an iris acquisition module. Background Technology

[0002] Current iris recognition modules mostly use small lenses with a diameter of 12mm or less, resulting in a lightweight overall structure and low requirements for the rotation drive mechanism. However, with technological advancements, to improve iris recognition quality, high-pixel, high-precision iris lens modules often employ larger optical lenses, leading to higher power consumption, larger size, and greater weight. Therefore, a more efficient rotation drive mechanism is needed to support the rotation requirements of the iris recognition module, while simultaneously utilizing low-power facilities to reduce the frequency of use of the iris recognition equipment and lower the overall power consumption of the system. Hence, a new type of iris recognition module is particularly needed.

[0003] However, in the existing iris acquisition modules, the rotation drive device cannot efficiently meet the rotation requirements of the iris acquisition module during use, thus reducing the iris acquisition efficiency. Summary of the Invention

[0004] The purpose of this utility model is to provide an iris acquisition module to solve the problem mentioned in the background art that the existing iris acquisition module cannot efficiently meet the rotation requirements of the iris acquisition module during use, thereby reducing the iris acquisition efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an iris recognition module, comprising a fixing frame and a driving mechanism, wherein a support frame is mounted on one side of the surface of the fixing frame, an anti-theft fixing hole is provided on one side of the surface of the fixing frame, mounting fixing holes are provided at both ends of the fixing frame, a recognition mechanism is provided on one side of the surface of the support frame, and a driving mechanism is provided on one side of the surface of the fixing frame.

[0006] The drive mechanism includes a motor, a limiter, a connector, a transmission component, a rotating shaft, and a bearing. The motor is fixedly installed on one side of the surface of the fixed frame, the limiter is installed on one side of the surface of the fixed frame, the connector is fixedly connected to both ends of the fixed frame, the transmission component is fixedly installed on one side of the surface of the support frame, the rotating shaft is fixedly connected to both ends of the support frame, and the bearing is sleeved on the surface of the rotating shaft.

[0007] Preferably, the output end of the motor is connected to the transmission component.

[0008] Preferably, the bearing is disposed inside the connector.

[0009] Preferably, the acquisition mechanism includes a mounting slot, a filter, a first slot, a second slot, a third slot, a fourth slot, a mounting hole, an iris camera, a ranging module, a face camera, a near-infrared lamp, and a control board. The mounting slot is formed on one side of the surface of the support frame, and a filter is mounted on one side of the surface of the support frame. The inner wall of the support frame has a first slot, a second slot, a third slot, and a fourth slot. The inner wall of the support frame has a mounting hole, and the inner wall of the support frame houses the iris camera, the ranging module, the face camera, the near-infrared lamp, and the control board.

[0010] Preferably, the iris camera is located in the middle of the support frame, and a high-precision iris-specific camera module is used to capture iris images. The iris camera is installed inside the first slot, the ranging module is located to the left of the iris camera, and the ranging module is installed inside the second slot.

[0011] Preferably, the face camera is located to the right of the iris camera, uses a wide-angle camera module to capture face images, and the face camera is installed inside the third card slot.

[0012] Preferably, the near-infrared lamps are located symmetrically on both sides of the iris camera, and the near-infrared lamps are installed inside the fourth slot.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This iris recognition module, through optimized drive mechanism design, can more efficiently meet rotation requirements, thereby improving iris recognition efficiency. The use of a bearing structure significantly reduces wear on the rotating shaft, extending the device's lifespan. The bearings not only reduce wear but also mitigate rotational errors, improving rotational accuracy and thus enhancing iris recognition accuracy. A well-planned layout of the near-infrared lights and ranging module provides the iris camera with a more uniform near-infrared light source and precise ranging capabilities, optimizing the acquisition environment. Integrating multiple functional modules such as an iris camera, ranging module, face camera, and near-infrared lights, it achieves multiple functions including iris recognition, face recognition, and distance measurement. Attached Figure Description

[0015] Figure 1 This is a side view of the appearance structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the disassembly mechanism of this utility model;

[0017] Figure 3This is an exploded view of the drive mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the back structure of the support frame of this utility model.

[0019] In the diagram: 1. Fixing frame; 2. Support frame; 3. Anti-theft fixing hole; 4. Mounting fixing hole; 5. Acquisition mechanism; 501. Mounting slot; 502. Filter; 503. First slot; 504. Second slot; 505. Third slot; 506. Fourth slot; 507. Mounting hole; 508. Iris camera; 509. Distance measuring module; 510. Face camera; 511. Near-infrared lamp; 512. Control board; 6. Drive mechanism; 601. Motor; 602. Limiter; 603. Connector; 604. Transmission component; 605. Rotating shaft; 606. Bearing. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 This utility model provides an iris acquisition module, including a fixed frame 1 and a driving mechanism 6. A support frame 2 is installed on one side of the surface of the fixed frame 1. An anti-theft fixing hole 3 is opened on one side of the surface of the fixed frame 1. Mounting fixing holes 4 are opened at both ends of the fixed frame 1. An acquisition mechanism 5 is provided on one side of the surface of the support frame 2. A driving mechanism 6 is provided on one side of the surface of the fixed frame 1.

[0022] The drive mechanism 6 includes a motor 601, a limiter 602, a connector 603, a transmission component 604, a rotating shaft 605, and a bearing 606. The motor 601 is fixedly mounted on one side of the surface of the fixed frame 1, and the limiter 602 is also mounted on one side of the surface of the fixed frame 1. The connector 603 is fixedly connected to both ends of the fixed frame 1. The transmission component 604 is fixedly mounted on one side of the surface of the support frame 2, and the rotating shaft 605 is fixedly connected to both ends of the support frame 2. The bearing 606 is sleeved on the surface of the rotating shaft 605. The drive mechanism 6 is connected via the motor 601, limiter 602, connector 603, and transmission component 604. The arrangement of the rotating shaft 605 and bearing 606 allows for the following operation: When the motor 601 is turned on, it drives the transmission component 604 to rotate. Since the bearing 606 is sleeved on the surface of the rotating shaft 605 and installed inside the connector 603, the motor 601 is mounted on the surface of the fixed frame 1, and the transmission component 604 is mounted on the surface of the support frame 2. Thus, when the motor 601 drives the transmission component 604 to rotate, the transmission component 604 drives the support frame 2 to rotate, thereby driving the acquisition mechanism 5 to rotate. The limiter 602 can control the rotation range of the motor 601.

[0023] Furthermore, the output end of the motor 601 is connected to the transmission component 604. Through the configuration of the motor 601, during use, the operation of the motor 601 can drive the transmission component 604 to rotate, thereby driving the support frame 2 to rotate.

[0024] Furthermore, the bearing 606 is located inside the connector 603. Through the installation of the bearing 606, during use, the bearing 606 will significantly reduce the wear of the rotating shaft 605 and enhance the service life of the equipment; at the same time, it will reduce rotational error and improve rotational accuracy.

[0025] Furthermore, the acquisition mechanism 5 includes a mounting slot 501, a filter 502, a first slot 503, a second slot 504, a third slot 505, a fourth slot 506, a mounting hole 507, an iris camera 508, a ranging module 509, a face camera 510, a near-infrared lamp 511, and a control board 512. The mounting slot 501 is formed on one side of the surface of the support frame 2, and the filter 502 is mounted on one side of the surface of the support frame 2. The first slot 503, the second slot 504, and the third slot are all formed on the inner wall of the support frame 2. 505, the inner wall of the support frame 2 has a fourth slot 506, a mounting hole 507, an iris camera 508, a ranging module 509, a face camera 510, a near-infrared lamp 511, and a control board 512. The support frame 2 is connected via the mounting slot 501, filter 502, first slot 503, second slot 504, third slot 505, fourth slot 506, mounting hole 507, and iris camera 508. The setup of the ranging module 509, face camera 510, near-infrared lamp 511, and control board 512 involves first installing the iris camera 508 inside the first slot 503, the ranging module 509 inside the second slot 504, the face camera 510 inside the third slot 505, and the near-infrared lamp 511 inside the fourth slot 506. Simultaneously, the filter 502 is installed inside the mounting slot 501. Considering the narrow field of view of the iris camera 508, it adopts a centered design to maximize the acquisition of the iris image. For example, near-infrared lamps 511 are arranged on the left and right sides of the iris camera 508, resulting in a more uniform light distribution. Maintaining a suitable distance between the near-infrared lamps 511 and the iris camera 508 avoids red-eye. Addressing the short focusing range of the iris camera 508, a high-precision ranging module 509 is configured. Through precise distance measurement, the distance between the viewer's eye and the target surface of the iris camera 508 is guided within the focusing range. By using the face camera 510 in conjunction with the ranging module 509, three-dimensional guidance can be provided to direct the viewer to the optimal iris acquisition area. The control board 512 enables intelligent control of various functional modules, including driving motor rotation, ranging module measurement, face camera acquisition, and iris camera acquisition.

[0026] Furthermore, the iris camera 508 is located in the middle of the support frame 2, and uses a high-precision iris-specific camera module to capture iris images. The iris camera 508 is installed inside the first slot 503, and the ranging module 509 is located to the left of the iris camera 508. The ranging module 509 is installed inside the second slot 504. Through the setting of the ranging module 509, during use, the ranging module 509 can automatically measure the distance from the human eye to the iris camera 508.

[0027] Furthermore, the face camera 510 is located to the right of the iris camera 508. It uses a wide-angle camera module to capture face images. The face camera 510 is installed inside the third card slot 505. Through the settings of the face camera 510, the face camera 510 can guide the user to the optimal iris capture area.

[0028] Furthermore, the near-infrared lamp 511 is located symmetrically on both sides of the iris camera 508. The near-infrared lamp 511 is installed inside the fourth slot 506. Through the setting of the near-infrared lamp 511, the near-infrared lamp 511 provides a near-infrared light source for the iris camera 508 during use.

[0029] The iris camera 508 features a centered design to capture iris images as accurately as possible. Near-infrared lamps 511 are arranged on both sides of the iris camera, providing uniform near-infrared light and avoiding red-eye. A ranging module 509 is installed on the left side of the iris camera to automatically measure the distance from the user's eyes to the camera. A face camera 510 is installed on the right side of the iris camera to capture facial images and guide the user to the optimal iris capture area. Furthermore, by integrating multiple functional modules such as the iris camera 508, ranging module 509, face camera 510, and near-infrared lamps 511 into a single acquisition mechanism, multi-functional integration is achieved.

[0030] Working principle: First, the iris camera 508 is installed inside the first slot 503, the ranging module 509 is installed inside the second slot 504, the face camera 510 is installed inside the third slot 505, and the near-infrared lamp 511 is installed inside the fourth slot 506. Simultaneously, the filter 502 is installed inside the mounting slot 501. Considering the narrow surface area of ​​the iris camera 508, it adopts a centered design to maximize iris image capture. The near-infrared lamps 511 are arranged on the left and right sides of the iris camera 508 for more even light distribution. A suitable distance is maintained between the near-infrared lamps 511 and the iris camera 508 to avoid red-eye. The iris camera 508, characterized by its short focusing range, is equipped with a high-precision ranging module 509. Through precise ranging, it guides the distance between the person's eye and the target surface of the iris camera 508 within the focusing range. By working in conjunction with the face camera 510 and the ranging module 509, it can guide the person in three dimensions, directing them to the optimal iris acquisition area. Using face-related algorithms, it calculates the angle between the person's eye position and the optical axis of the face camera 510, and drives the motor 601 to rotate the support frame 2, so that the person's eye position and the optical axis of the iris camera 508 are on the same plane. At the same time, by calculating the three-dimensional angle between the head and the optical axis of the face camera 510, it guides the person to look directly at the iris camera 508.

[0031] In summary, this utility model improves iris acquisition efficiency and rotation accuracy, optimizes the acquisition environment, and achieves multi-functional integration by optimizing the design of the drive mechanism, rationally arranging the acquisition mechanism, integrating multiple functional modules, and realizing intelligent control.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An iris recognition module, comprising a mounting frame (1) and a driving mechanism (6), characterized in that: A support frame (2) is installed on one side of the surface of the fixed frame (1), an anti-theft fixing hole (3) is opened on one side of the surface of the fixed frame (1), and mounting fixing holes (4) are opened at both ends of the fixed frame (1). A collection mechanism (5) is provided on one side of the surface of the support frame (2), and a driving mechanism (6) is provided on one side of the surface of the fixed frame (1). The drive mechanism (6) includes a motor (601), a limiter (602), a connector (603), a transmission component (604), a rotating shaft (605), and a bearing (606). The motor (601) is fixedly installed on one side of the surface of the fixed frame (1), the limiter (602) is installed on one side of the surface of the fixed frame (1), the connector (603) is fixedly connected to both ends of the fixed frame (1), the transmission component (604) is fixedly installed on one side of the surface of the support frame (2), the rotating shaft (605) is fixedly connected to both ends of the support frame (2), and the bearing (606) is sleeved on the surface of the rotating shaft (605).

2. The iris recognition module according to claim 1, characterized in that: The output end of the motor (601) is connected to the transmission component (604).

3. The iris recognition module according to claim 1, characterized in that: The bearing (606) is disposed inside the connector (603).

4. An iris recognition module according to claim 1, characterized in that: The acquisition mechanism (5) includes a mounting slot (501), a filter (502), a first slot (503), a second slot (504), a third slot (505), a fourth slot (506), a mounting hole (507), an iris camera (508), a ranging module (509), a face camera (510), a near-infrared lamp (511), and a control board (512). The mounting slot (501) is provided on one side of the surface of the support frame (2), and a filter (502) is mounted on one side of the surface of the support frame (2). The first slot (503) is provided on the inner wall of the support frame (2). The inner wall of the support frame (2) is provided with a second slot (504), the inner wall of the support frame (2) is provided with a third slot (505), the inner wall of the support frame (2) is provided with a fourth slot (506), the inner wall of the support frame (2) is provided with an installation hole (507), the inner wall of the support frame (2) is provided with an iris camera (508), the inner wall of the support frame (2) is provided with a ranging module (509), the inner wall of the support frame (2) is provided with a face camera (510), the inner wall of the support frame (2) is provided with a near-infrared lamp (511), and the inner wall of the support frame (2) is provided with a control board (512).

5. An iris recognition module according to claim 4, characterized in that: The iris camera (508) is located in the middle of the support frame (2) and uses a high-precision iris-specific camera module to collect iris images. The iris camera (508) is installed inside the first slot (503). The ranging module (509) is located to the left of the iris camera (508) and is installed inside the second slot (504).

6. An iris recognition module according to claim 4, characterized in that: The face camera (510) is located to the right of the iris camera (508), and uses a wide-angle camera module to capture face images. The face camera (510) is installed inside the third card slot (505).

7. An iris recognition module according to claim 4, characterized in that: The near-infrared lamp (511) is located symmetrically on both sides of the iris camera (508), and the near-infrared lamp (511) is installed inside the fourth slot (506).

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