Multi-angle face image acquisition device

Abstract

The invention discloses a multi-angle face image acquisition device, and relates to the technical field of image acquisition. The device comprises a rack, the top of the rack is provided with a collector, and one side of the collector is fixedly connected with a collection lens; an angle adjusting mechanism is arranged at the bottom of the collector. Through cooperation of a gear, a semi-annular toothed plate and a motor in the angle adjusting mechanism, rotation of the acquisition lens along a semi-annular path is realized. According to the design, the device can perform image acquisition on a human face from different angles, and the problem of key feature missing caused by single-angle shooting of a traditional fixed acquisition device is avoided. Especially in applications such as face recognition and identity verification, multi-angle acquisition can significantly improve the comprehensiveness and accuracy of data, and provides richer information for subsequent image processing and feature extraction; and a cleaning pad and a cleaning liquid supply system in the cleaning mechanism can automatically wipe, wet and clean the surface of the acquisition lens in the rotation process of the acquisition lens.

Description

Technical Field

[0001] This invention belongs to the field of image acquisition technology, and in particular relates to a multi-angle face image acquisition device. Background Technology

[0002] Facial image acquisition refers to capturing facial image data using specific devices. These images can be used in fields such as facial recognition, identity verification, expression analysis, and security monitoring. Facial image acquisition is usually the first step in a facial recognition system. Afterward, the images need to be processed, features extracted, and compared to complete the recognition task. Acquisition devices are used during facial image acquisition.

[0003] Existing data acquisition devices employ a fixed installation structure, limiting their acquisition angle and range; they can only capture images of the face from the front or specific side angles. To capture a comprehensive image of a user's face, the user must constantly adjust the angle; otherwise, capturing from a single angle can easily result in the loss of crucial features. Furthermore, the lenses of these devices are constantly exposed to the environment, making them prone to dust accumulation. Lacking real-time cleaning capabilities, these devices rely solely on periodic manual wiping. During these periodic cleaning cycles, the cleanliness of the lenses cannot be guaranteed, leading to blurry images. To ensure image clarity, frequent manual inspections and cleaning are necessary, especially in multi-device deployment scenarios, making maintenance time-consuming and labor-intensive.

[0004] To address this issue, we provide a multi-angle face image acquisition device to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-angle face image acquisition device. By combining the angle adjustment mechanism and the cleaning mechanism, it solves the problems of existing acquisition devices being unable to acquire images from multiple angles and having their image clarity affected during use.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0007] This invention relates to a multi-angle facial image acquisition device, comprising a frame, an acquisition unit mounted on the top of the frame, and an acquisition lens fixedly connected to one side of the acquisition unit; an angle adjustment mechanism mounted on the bottom of the acquisition unit, the angle adjustment mechanism comprising a gear mounted on the bottom of the acquisition unit, a semi-annular toothed plate meshing with the bottom of the gear, a support plate fixedly connected to the bottom of the semi-annular toothed plate, and a bracket mounted on the top of the support plate; a cleaning mechanism mounted on one side of the semi-annular toothed plate, the cleaning mechanism comprising a support frame fixedly connected to one side of the support plate, and a cleaning pad fixedly connected to one side of the support frame.

[0008] The present invention is further configured such that the angle adjustment mechanism includes a protective filter cylinder fixedly connected to one side of the bracket, and a motor fixedly connected to one side inside the protective filter cylinder.

[0009] The present invention is further configured such that the cleaning mechanism includes a liquid storage tank fixedly connected to the top of the support plate, a pressure pump connected to one side of the liquid storage tank, a conduit connected to one side of the pressure pump, a diverter plate connected to one side of the conduit, a fixing frame fixedly connected to the top of the bracket, a pressing rod fixedly connected to one side of the fixing frame, a vertical plate fixedly connected to the top of the liquid storage tank, and a contact switch fixedly connected to one side of the vertical plate.

[0010] The present invention is further configured such that a slider is fixedly connected to the bottom of the bracket, and a groove adapted to the slider is provided on the top of the support plate.

[0011] The present invention is further configured such that a collection shell is fixedly connected to one side of the support frame, a drain pipe is connected to one side of the collection shell, and a pipe cap is threadedly connected to the surface of the drain pipe.

[0012] The present invention is further configured such that the top of the liquid storage tank is connected to a liquid inlet pipe, and a sealing cap is threaded onto the surface of the liquid inlet pipe.

[0013] The present invention is further configured such that a cylinder is fixedly connected to the top of the frame, and the output end of the cylinder is fixedly connected to the support plate.

[0014] The present invention is further configured such that a guide rod is provided on one side of the cylinder, and a guide cylinder is sleeved on the surface of the guide rod.

[0015] The present invention is further configured such that a limiting block is fixedly connected to one side of the guide rod, and a limiting groove adapted to the limiting block is provided on one side of the inside of the guide cylinder.

[0016] The invention is further configured such that a mounting hole is provided on the top of the frame, and a protective cover is fixedly connected to the top of the collector.

[0017] The present invention has the following beneficial effects.

[0018] 1. This invention achieves the rotation of the acquisition lens along a semi-circular path through the cooperation of gears, a semi-circular toothed plate, and a motor in the angle adjustment mechanism. This design allows the device to acquire images of faces from different angles, avoiding the problem of missing key features caused by single-angle shooting in traditional fixed acquisition devices. Especially in applications such as facial recognition and identity verification, multi-angle acquisition can significantly improve the comprehensiveness and accuracy of data, providing richer information for subsequent image processing and feature extraction. The cleaning pad and cleaning fluid supply system in the cleaning mechanism can automatically wipe and moisten the surface of the acquisition lens during its rotation. By pressing the lever to trigger the contact switch, the pressure pump evenly sprays the cleaning fluid in the reservoir onto the cleaning pad, ensuring that the lens surface remains clean at all times. This design effectively prevents dust adhesion, avoids image blurring caused by lens contamination, thus ensuring the acquisition quality during long-term use, while reducing the frequency and cost of manual maintenance.

[0019] 2. This invention achieves flexible adjustment of the acquisition lens height through the cooperation of a cylinder and a guide rod. Users can adjust the position of the acquisition lens according to their own height or the needs of the actual use scenario, further expanding the applicability of the device. This user-friendly design not only enhances the user experience but also enables the device to adapt to high-precision acquisition needs in different environments. The design of the protective filter cartridge, limiting block, and limiting groove in the device enhances the stability and durability of the overall structure. The protective filter cartridge protects the motor from dust contamination while ensuring its proper heat dissipation; the cooperation of the limiting block and limiting groove prevents the support plate from shifting during movement, ensuring the stability of the acquisition process. In addition, the design of the protective cover and mounting holes provides additional protection and fixation for the equipment, further improving the reliability of the device.

[0020] 3. This invention achieves automatic supply and uniform distribution of cleaning fluid through the coordinated operation of the storage tank, pressure pump, and diversion plate in the cleaning mechanism. The design of the collection shell and drain pipe allows for the recovery of excess cleaning fluid, avoiding waste and environmental pollution. This efficient cleaning fluid management system not only improves cleaning efficiency but also meets environmental protection requirements and reduces operating costs. The collector and mounting frame are bolted together for easy disassembly and maintenance; the storage tank is equipped with an observation window and an inlet pipe, allowing users to easily replenish the cleaning fluid at any time. These modular designs make daily maintenance of the device more convenient and extend its service life.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a stereoscopic view of a multi-angle face image acquisition device.

[0024] Figure 2 This is a cross-sectional view of a support plate in a multi-angle face image acquisition device.

[0025] Figure 3 This is a cross-sectional view of the liquid storage tank in a multi-angle face image acquisition device.

[0026] Figure 4 This is a bottom view of a partial structure of a multi-angle face image acquisition device.

[0027] Figure 5 This is a cross-sectional view of the guide tube in a multi-angle face image acquisition device.

[0028] Figure 6 This is a diagram showing the cleanliness of the acquisition lens in a multi-angle face image acquisition device.

[0029] Figure 7 This is a bottom view of a multi-angle face image acquisition device.

[0030] Figure 8 This is a top view of a partial structure of a multi-angle face image acquisition device.

[0031] In the attached diagram: 1. Frame; 2. Collector; 3. Collector lens; 4. Gear; 5. Semi-annular toothed plate; 6. Support plate; 7. Support frame; 8. Cleaning pad; 9. Protective filter cartridge; 10. Motor; 11. Storage tank; 12. Pressure pump; 13. Guide tube; 14. Diverter plate; 15. Fixing frame; 16. Pressing rod; 17. Vertical plate; 18. Contact switch; 19. Slider; 20. Collection shell; 21. Cylinder; 22. Guide rod; 23. Guide cylinder; 24. Mounting hole; 25. Protective cover; 26. Slide groove; 27. Drain pipe; 28. Inlet pipe; 29. ​​Limiting block; 30. Limiting groove; 31. Bracket. Detailed Implementation

[0032] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments. Example 1

[0033] Please see Figures 1-8This invention relates to a multi-angle face image acquisition device, comprising a frame 1, an acquisition device 2 mounted on the top of the frame 1, and an acquisition lens 3 fixedly connected to one side of the acquisition device 2. The acquisition device 2 and the acquisition lens 3 are used for acquiring face images. An angle adjustment mechanism is provided at the bottom of the acquisition device 2, including a gear 4 mounted at the bottom of the acquisition device 2, a semi-annular toothed plate 5 meshing with the bottom of the gear 4, the gear 4 rotating along the path of the semi-annular toothed plate 5 when driven, a support plate 6 fixedly connected to the bottom of the semi-annular toothed plate 5, and a bracket 31 mounted on the top of the support plate 6. A cleaning mechanism is provided on one side of the semi-annular toothed plate 5, including a support frame 7 fixedly connected to one side of the support plate 6 and a cleaning pad 8 fixedly connected to one side of the support frame 7. The cleaning pad 8 is used to wipe and clean the acquisition lens 3 to ensure the clarity of the acquired image. When the acquisition device 2 and the acquisition lens 3 rotate along the path of the semi-annular toothed plate 5, the acquisition lens 3 will squeeze the cleaning pad 8 to wipe it. Example 2

[0034] Please see Figures 1-8Based on Embodiment 1, the angle adjustment mechanism further includes a protective filter cartridge 9 fixedly connected to one side of the bracket 31, and a motor 10 fixedly connected to one side inside the protective filter cartridge 9. The output end of the motor 10 extends to one side of the protective filter cartridge 9 and is fixedly connected to the gear 4. The output end of the motor 10 and the protective filter cartridge 9 are rotatably connected through a bearing. The protective filter cartridge 9 can protect the motor 10, preventing dust contamination while ensuring normal heat dissipation of the motor 10. The cleaning mechanism also includes a liquid storage tank 11 fixedly connected to the top of the support plate 6. A controller is provided on the top of the support plate 6, and the controller is fixedly connected to the liquid storage tank 11. The liquid storage tank 11 stores cleaning fluid for cleaning the acquisition lens 3. An observation window is fixedly connected to one side of the liquid storage tank 11 to facilitate the user to observe the liquid level of the cleaning fluid inside the liquid storage tank 11. A pressure pump 12 is connected to one side of the liquid storage tank 11, and the bottom of the pressure pump 12 is fixedly connected to the support plate 6. A conduit 13 is connected to one side of the pressure pump 12, and a diverter plate 14 is connected to one side of the conduit 13. The bottom of the diverter plate 14 is fixed to the top of the support frame 7. The connection ensures that the cleaning pad 8 is wetted when the cleaning fluid flows out from the diversion plate 14. A fixed bracket 15 is fixedly connected to the top of the support 31. The bottom of the collector 2 is fixedly connected to the fixed bracket 15 by bolts, facilitating disassembly and maintenance of the collector 2. A pressing rod 16 is fixedly connected to one side of the fixed bracket 15. A vertical plate 17 is fixedly connected to the top of the storage tank 11. A contact switch 18 is fixedly connected to one side of the vertical plate 17. The pressing rod 16 triggers the contact switch 18, thereby controlling the pressure pump 12 to operate and move the storage tank 11. The cleaning fluid inside is sucked out and the cleaning pad 8 is wetted. A slider 19 is fixedly connected to the bottom of the bracket 31. A groove 26 adapted to the slider 19 is opened on the top of the support plate 6. The slider 19 and the groove 26 can make the collector 2 rotate more smoothly and stably. A collection shell 20 is fixedly connected to one side of the support frame 7. The collection shell 20 is used to collect excess cleaning fluid. A drain pipe 27 is connected to one side of the collection shell 20. A pipe cap is threaded on the surface of the drain pipe 27. The drain pipe 27 can discharge the excess cleaning fluid collected inside the collection shell 20. Example 3

[0035] Please see Figures 1-8Based on Embodiments 1 and 2, the top of the liquid storage tank 11 is connected to an inlet pipe 28, which allows users to easily add cleaning fluid to the liquid storage tank 11. The surface of the inlet pipe 28 is threaded with a sealing cap. A cylinder 21 is fixedly connected to the top of the frame 1. The cylinder 21 is used to adjust the height of the collector 2. The output end of the cylinder 21 is fixedly connected to the support plate 6. A guide rod 22 is provided on one side of the cylinder 21. The bottom of the guide rod 22 is fixedly connected to the frame 1. A guide cylinder 23 is sleeved on the surface of the guide rod 22. The top of the guide cylinder 23 is fixedly connected to the support plate 6. The guide cylinder 23 can move along the direction of the guide rod 22. A limit block 29 is fixedly connected to one side of the guide rod 22. A limit groove 30 adapted to the limit block 29 is opened on one side inside the guide cylinder 23. An installation hole 24 is opened on the top of the frame 1. The installation hole 24 can be used to install and fix the entire device. A protective cover 25 is fixedly connected to the top of the collector 2. The protective cover 25 is used to protect the top area of ​​the collector 2.

[0036] The working principle of this invention is as follows: After starting the motor 10, the output end of the motor 10 drives the gear 4 to rotate. Since the gear 4 meshes with the semi-annular toothed plate 5, the rotation of the gear 4 drives the fixed frame 15 and the acquisition lens 3 on it to move along the semi-annular path. During this process, the acquisition lens 3 can capture images of the face from different angles, realizing multi-angle image acquisition. The slider 19 at the bottom of the bracket 31 cooperates with the sliding groove 26 on the support plate 6 to ensure the stability and accuracy of the acquisition lens 3 during movement.

[0037] When the acquisition lens 3 rotates to the cleaning pad 8 position, the lens surface contacts and rubs against the cleaning pad 8, completing the initial physical cleaning. Simultaneously, the pressing lever 16 on the mounting bracket 15 triggers the contact switch 18 on the vertical plate 17, activating the pressure pump 12. This pump evenly sprays the cleaning solution from the storage tank 11 onto the cleaning pad 8 through the conduit 13 and the diverter plate 14. The moistened cleaning pad 8 further enhances the cleaning effect, ensuring no dust residue remains on the lens surface. Excess cleaning solution is collected by the collection shell 20 and discharged through the drain pipe 27, preventing liquid waste and environmental pollution.

[0038] When cylinder 21 operates, it pushes the support plate 6 and the fixing frame 15 to move up and down as a whole. The cooperation of guide rod 22 and guide cylinder 23 ensures smooth movement, and the design of limit block 29 and limit groove 30 prevents the support plate 6 from shifting during movement. Users can adjust the height of the acquisition lens 3 as needed to adapt to different heights or scene requirements.

[0039] The protective filter cartridge 9 protects the motor 10 from dust contamination, while its heat dissipation design ensures the stability of the motor 10 during long-term operation. The protective cover 25 provides additional protection for the top of the collector 2, preventing collisions with external objects. The mounting holes 24 are used to secure the entire device in a designated position, ensuring stability during operation.

[0040] The storage tank 11 is replenished with cleaning fluid via the inlet pipe 28, and the observation window allows users to monitor the fluid level in real time. The coordinated operation of the pressure pump 12 and the diverter plate 14 ensures precise supply of cleaning fluid, guaranteeing that the cleaning pad 8 maintains the appropriate level of moisture. The design of the collection shell 20 and the drain pipe 27 enables efficient recycling of the cleaning fluid, preventing waste. This achieves integrated functions of multi-angle facial image acquisition, automatic lens cleaning, and highly flexible height adjustment. Its innovative design not only overcomes the limitations of traditional acquisition devices but also enhances the practicality and reliability of the equipment, making it suitable for high-precision facial image acquisition needs in various complex environments.

[0041] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-angle face image acquisition device, comprising a rack (1), characterized in that: The top of the frame (1) is equipped with a collector (2), and a collection lens (3) is fixedly connected to one side of the collector (2). The bottom of the collector (2) is provided with an angle adjustment mechanism, which includes a gear (4) located at the bottom of the collector (2), a semi-annular toothed plate (5) meshing with the bottom of the gear (4), a support plate (6) fixedly connected to the bottom of the semi-annular toothed plate (5), and a bracket (31) located at the top of the support plate (6). A cleaning mechanism is provided on one side of the semi-annular toothed plate (5). The cleaning mechanism includes a support frame (7) fixedly connected to one side of the support plate (6) and a cleaning pad (8) fixedly connected to one side of the support frame (7).

2. The multi-angle face image acquisition device according to claim 1, characterized in that: The angle adjustment mechanism also includes a protective filter cartridge (9) fixedly connected to one side of the bracket (31) and a motor (10) fixedly connected to one side inside the protective filter cartridge (9).

3. The multi-angle face image acquisition device according to claim 1, characterized in that: The cleaning mechanism also includes a liquid storage tank (11) fixedly connected to the top of the support plate (6), a pressure pump (12) connected to one side of the liquid storage tank (11), a conduit (13) connected to one side of the pressure pump (12), a diverter plate (14) connected to one side of the conduit (13), a fixing frame (15) fixedly connected to the top of the bracket (31), a pressing rod (16) fixedly connected to one side of the fixing frame (15), a vertical plate (17) fixedly connected to the top of the liquid storage tank (11), and a contact switch (18) fixedly connected to one side of the vertical plate (17).

4. The multi-angle face image acquisition device according to claim 1, characterized in that: The bottom of the bracket (31) is fixedly connected to a slider (19), and the top of the support plate (6) is provided with a groove (26) that matches the slider (19).

5. The multi-angle face image acquisition device according to claim 1, characterized in that: The support frame (7) is fixedly connected to a collection shell (20) on one side, and a drain pipe (27) is connected to one side of the collection shell (20). A pipe cap is threaded onto the surface of the drain pipe (27).

6. The multi-angle face image acquisition device according to claim 3, characterized in that: The top of the liquid storage tank (11) is connected to an inlet pipe (28), and a sealing cap is threaded onto the surface of the inlet pipe (28).

7. The multi-angle face image acquisition device according to claim 1, characterized in that: A cylinder (21) is fixedly connected to the top of the frame (1), and the output end of the cylinder (21) is fixedly connected to the support plate (6).

8. The multi-angle face image acquisition device according to claim 7, characterized in that: A guide rod (22) is provided on one side of the cylinder (21), and a guide cylinder (23) is sleeved on the surface of the guide rod (22).

9. The multi-angle face image acquisition device according to claim 8, characterized in that: The guide rod (22) is fixedly connected to a limiting block (29) on one side, and a limiting groove (30) adapted to the limiting block (29) is opened on one side inside the guide cylinder (23).

10. The multi-angle face image acquisition device according to claim 1, characterized in that: The top of the frame (1) is provided with a mounting hole (24), and the top of the collector (2) is fixedly connected with a protective cover (25).

Images