Voiceprint recognition device based on FPGA

Abstract

The utility model relates to the technical field of voiceprint recognition devices, and discloses an FPGA-based voiceprint recognition device, which comprises a shell, connecting plates are fixedly mounted on the symmetrical sides of the shell, control buttons are fixedly mounted on the front surface of the shell, voiceprint recognition holes are formed in the front surface of the shell, and the control buttons are connected with the voiceprint recognition holes. A first threaded column is movably installed in the shell, a moving block is in threaded connection with the outer side of the first threaded column, and a connecting block is fixedly installed on the outer side of the moving block. The rotating column rotates to drive the first threaded column to rotate, and the first threaded column rotates to drive the connecting block to slide in the sliding through hole through the moving block, so that the connecting block moves to drive the cleaning roller to clean the voiceprint recognition hole, the voiceprint recognition hole is prevented from being blocked by dust, and the practicability of the whole voiceprint recognition device based on the FPGA is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of voiceprint recognition devices, in particular to a voiceprint recognition device based on FPGA. Background Art

[0002] Voiceprint recognition, a type of biometric technology, is also called speaker recognition, which includes speaker identification and speaker confirmation. Voiceprint recognition is to convert sound signals into electrical signals and then use computers to identify them. Different tasks and applications will use different voiceprint recognition technologies. For example, identification technology may be needed to narrow the scope of criminal investigation, while confirmation technology is required for bank transactions. Existing voiceprint recognition devices do not protect the voiceprint recognition holes during use. Dust in the air can easily clog the voiceprint recognition holes, affecting the accuracy of voiceprint recognition. Utility Model Content

[0003] The purpose of the utility model is to provide a voiceprint recognition device based on FPGA to solve the problems raised in the above background technology.

[0004] Technical Solution

[0005] The utility model provides the following technical solution: a voiceprint recognition device based on FPGA, comprising a shell, symmetrical sides of the shell are fixedly installed with connecting plates, the front of the shell is fixedly installed with a control button, the front of the shell is provided with a voiceprint recognition hole, a first threaded column is movably installed inside the shell, a moving block is threadedly connected to the outer side of the first threaded column, a connecting block is fixedly installed on the outer side of the moving block, a plug-in board is movably installed inside the connecting block, a cleaning roller is fixedly installed between two adjacent plug-in boards, and the cleaning roller is located on the surface of the voiceprint recognition hole.

[0006] Preferably, an installation cavity is opened inside the shell, and a motor and a partition are fixedly installed in the installation cavity respectively, a driving gear is fixedly installed on the output shaft end of the motor, a rotating column is movably installed inside the partition, a driven gear is fixedly installed on the outer side of the rotating column, and the driving gear and the driven gear are meshingly connected.

[0007] Preferably, one end of the rotating column is fixedly connected to the inner wall of the installation cavity, and the other end of the rotating column is fixedly connected to the first threaded column. A sliding through hole matching the connecting block is opened through the front inner wall of the shell, and the sliding through holes are located on two relatively symmetrical sides of the voiceprint recognition hole.

[0008] Preferably, a fixed column and a limit block are fixedly installed inside the connecting block, a movable plate is movably installed outside the fixed column, the movable plate and the limit block are movably connected, and a plug-in column is fixedly installed on one side of the movable plate close to the limit block.

[0009] Preferably, a second threaded column is movably installed inside the connecting block, the second threaded column passes through the movable plate, a rotating handle is fixedly installed at one end of the second threaded column, and the rotating handle is located outside the connecting block.

[0010] Preferably, a plug-in slot matching the plug-in board is provided inside the connection block, a connecting through hole matching the second threaded column is provided inside the plug-in board, and a plug-in hole matching the plug-in column is provided through the plug-in board.

[0011] Beneficial Effects

[0012] Compared with the prior art, the utility model provides a voiceprint recognition device based on FPGA, which has the following beneficial effects:

[0013] 1. The FPGA-based voiceprint recognition device drives the active gear to rotate through the work of the motor. When the active gear rotates, it drives the rotating column to rotate through the driven gear. When the rotating column rotates, it drives the first threaded column to rotate. When the first threaded column rotates, it drives the connecting block to slide in the sliding through hole through the moving block. In this way, the connecting block drives the cleaning roller to clean the voiceprint recognition hole when it moves, so as to prevent dust from blocking the voiceprint recognition hole, thereby increasing the practicality of the overall FPGA-based voiceprint recognition device.

[0014] 2. The FPGA-based voiceprint recognition device, by rotating the rotating handle, will drive the second threaded column to rotate when rotating, and when the second threaded column is rotated correctly, it will drive the movable plate to slide on the fixed column, and when the movable plate moves, it will drive the plug-in column and the plug-in plate to separate from each other, so that the plug-in plate can be taken out from the plug-in slot in the connecting block, so as to achieve the purpose of replacing the cleaning roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of the overall structure of the utility model;

[0017] Figure 2 This is a partial schematic diagram of the interior of the front side of the housing of the utility model;

[0018] Figure 3 This is the working diagram of the cleaning roller of the utility model;

[0019] Figure 4 This is a diagram of the connection between the connection block and the cleaning roller of the utility model;

[0020] Figure 5This is a schematic diagram of the connection block and the cleaning roller being separated from each other in the utility model;

[0021] Figure 6 It is a side sectional view of the connecting block of the utility model.

[0022] In the figure: 1. Shell; 2. Connecting plate; 3. Control button; 4. Voiceprint recognition hole; 5. Sliding through hole; 6. Connecting block; 7. Cleaning roller; 8. Motor; 9. Partition; 10. Rotating column; 11. First threaded column; 12. Moving block; 13. Driving gear; 14. Driven gear; 15. Rotating handle; 16. Plug-in plate; 17. Plug-in slot; 18. Connecting through hole; 19. Plug-in hole; 20. Second threaded column; 21. Moving plate; 22. Plug-in column; 23. Fixed column; 24. Limit block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] See also Figure 1-Figure 3 A voiceprint recognition device based on FPGA includes a shell 1, symmetrical sides of the shell 1 are fixedly installed with connecting plates 2, the front of the shell 1 is fixedly installed with a control button 3, the front of the shell 1 is provided with a voiceprint recognition hole 4, a first threaded column 11 is movably installed inside the shell 1, a moving block 12 is threadedly connected to the outer side of the first threaded column 11, a connecting block 6 is fixedly installed on the outer side of the moving block 12, a plug-in board 16 is movably installed inside the connecting block 6, a cleaning roller 7 is fixedly installed between two adjacent plug-in boards 16, and the cleaning roller 7 is located on the surface of the voiceprint recognition hole 4.

[0026] In this embodiment, an installation cavity is opened inside the shell 1, and a motor 8 and a partition 9 are fixedly installed in the installation cavity respectively. A driving gear 13 is fixedly installed on the output shaft end of the motor 8, and a rotating column 10 is movably installed inside the partition 9. A driven gear 14 is fixedly installed on the outer side of the rotating column 10, and the driving gear 13 and the driven gear 14 are meshingly connected.

[0027] In this embodiment, one end of the rotating column 10 is fixedly connected to the inner wall of the installation cavity, and the other end of the rotating column 10 is fixedly connected to the first threaded column 11. A sliding through hole 5 matching the connecting block 6 is penetrated through the front inner wall of the shell 1, and the sliding through hole 5 is located on both relatively symmetrical sides of the voiceprint recognition hole 4.

[0028] In this embodiment, a fixed column 23 and a limit block 24 are fixedly installed inside the connecting block 6, a movable plate 21 is movably installed on the outer side of the fixed column 23, the movable plate 21 and the limit block 24 are movably connected, and a plug-in column 22 is fixedly installed on the side of the movable plate 21 close to the limit block 24.

[0029] The motor 8 is a forward and reverse motor.

[0030] Working principle of this embodiment: when cleaning the voiceprint recognition hole 4, the motor 8 drives the driving gear 13 to rotate, and when the driving gear 13 rotates, it drives the rotating column 10 to rotate through the driven gear 14, and when the rotating column 10 rotates, it drives the first threaded column 11 to rotate, and when the first threaded column 11 rotates, it drives the connecting block 6 to slide in the sliding through hole 5 through the moving block 12, so that the connecting block 6 drives the cleaning roller 7 to clean the voiceprint recognition hole 4 when moving, so as to prevent dust from blocking the voiceprint recognition hole 4, thereby increasing the practicality of the overall FPGA-based voiceprint recognition device.

[0031] Embodiment 2:

[0032] See also Figure 1 , Figure 4-Figure 6 A voiceprint recognition device based on FPGA includes a shell 1, symmetrical sides of the shell 1 are fixedly installed with connecting plates 2, the front of the shell 1 is fixedly installed with a control button 3, the front of the shell 1 is provided with a voiceprint recognition hole 4, a first threaded column 11 is movably installed inside the shell 1, a moving block 12 is threadedly connected to the outer side of the first threaded column 11, a connecting block 6 is fixedly installed on the outer side of the moving block 12, a plug-in board 16 is movably installed inside the connecting block 6, a cleaning roller 7 is fixedly installed between two adjacent plug-in boards 16, and the cleaning roller 7 is located on the surface of the voiceprint recognition hole 4.

[0033] In this embodiment, a second threaded column 20 is movably installed inside the connecting block 6 . The second threaded column 20 passes through the movable plate 21 . A rotating handle 15 is fixedly installed at one end of the second threaded column 20 , and the rotating handle 15 is located outside the connecting block 6 .

[0034] In this embodiment, a plug-in groove 17 matching the plug-in plate 16 is provided inside the connection block 6, a connecting through hole 18 matching the second threaded column 20 is provided inside the plug-in plate 16, and a plug-in hole 19 matching the plug-in column 22 is provided inside the plug-in plate 16.

[0035] The working principle of this embodiment is as follows: when replacing the cleaning roller 7, the rotating handle 15 is rotated, and when 15 is rotated, the second threaded column 20 is driven to rotate, and when the second threaded column 20 is rotated correctly, the movable plate 21 is driven to slide on the fixed column 23, and when the movable plate 21 moves, the plug-in column 22 and the plug-in plate 16 are driven to separate from each other, so that the plug-in plate 16 can be taken out through the plug-in slot 17 in the connecting block 6, thereby achieving the purpose of replacing the cleaning roller 7.

Claims

1. A voiceprint recognition device based on FPGA, comprising a housing (1), characterized in that: The symmetrical sides of the shell (1) are fixedly mounted with connecting plates (2), the front of the shell (1) is fixedly mounted with a control button (3), the front of the shell (1) is provided with a voiceprint recognition hole (4), the inside of the shell (1) is movably mounted with a first threaded column (11), the outer side of the first threaded column (11) is threadedly connected with a moving block (12), the outer side of the moving block (12) is fixedly mounted with a connecting block (6), the inside of the connecting block (6) is movably mounted with a plug-in board (16), a cleaning roller (7) is fixedly mounted between two adjacent plug-in boards (16), and the cleaning roller (7) is located on the surface of the voiceprint recognition hole (4).

2. The FPGA-based voiceprint recognition device according to claim 1, characterized in that: The housing (1) is provided with an installation cavity, in which a motor (8) and a partition (9) are fixedly installed respectively; a driving gear (13) is fixedly installed on the output shaft end of the motor (8); a rotating column (10) is movably installed inside the partition (9); a driven gear (14) is fixedly installed on the outer side of the rotating column (10); and the driving gear (13) and the driven gear (14) are meshingly connected.

3. The FPGA-based voiceprint recognition device according to claim 2, characterized in that: One end of the rotating column (10) is fixedly connected to the inner wall of the installation cavity, and the other end of the rotating column (10) is fixedly connected to the first threaded column (11). A sliding through hole (5) matching the connecting block (6) is formed through the front inner wall of the shell (1), and the sliding through hole (5) is located on two relatively symmetrical sides of the voiceprint recognition hole (4).

4. The FPGA-based voiceprint recognition device according to claim 1, characterized in that: A fixed column (23) and a limit block (24) are fixedly mounted inside the connection block (6), a movable plate (21) is movably mounted outside the fixed column (23), the movable plate (21) and the limit block (24) are movably connected, and a plug-in column (22) is fixedly mounted on a side of the movable plate (21) close to the limit block (24).

5. The FPGA-based voiceprint recognition device according to claim 4, characterized in that: A second threaded column (20) is movably mounted inside the connecting block (6). The second threaded column (20) passes through the movable plate (21). A rotating handle (15) is fixedly mounted on one end of the second threaded column (20), and the rotating handle (15) is located outside the connecting block (6).

6. The FPGA-based voiceprint recognition device according to claim 5, characterized in that: The connection block (6) is provided with a plug-in slot (17) matching the plug-in plate (16), the plug-in plate (16) is provided with a connecting through hole (18) matching the second threaded column (20), and the plug-in plate (16) is provided with a plug-in hole (19) matching the plug-in column (22) running through the inside.

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