Data acquisition equipment for voice recognition

Abstract

The invention discloses voice recognition data acquisition equipment, and belongs to the technical field of data acquisition equipment.The voice recognition data acquisition equipment comprises an acquisition box, a module mainboard is arranged in the acquisition box, a through groove is formed in the side wall of the acquisition box, a floating groove shell is slidably clamped to the inner wall of the through groove, and a driving device is fixed between the inner walls of the lower portion of the through groove; the driving device is used for controlling the moving position of the floating bath shell; the collecting component is installed on the floating groove shell through a buffering assembly and comprises a bearing plate, a front panel of the bearing plate is in an arc shape and is fixedly provided with a main pickup, the rear sides of the edges of the two sides of the bearing plate are provided with slopes, auxiliary pickups are installed on the slopes respectively, and the auxiliary pickups are connected with the buffering assembly. According to the equipment, multi-direction and multi-frequency pickup is carried out by using the pickup sensitive to different frequencies, so that the accuracy and the range are improved; the buffer assembly isolates vibration and guarantees the collection quality; the driving device can flexibly adjust the pickup position, and the use experience can be improved.

Description

Technical Field

[0001] The invention specifically relates to a data acquisition device for speech recognition, and belongs to the technical field of speech recognition. Background Art

[0002] With the development of Internet of Things technology, voice interaction has become an important development direction of human-computer interaction. At the moment when artificial intelligence technology is booming, voice recognition interaction technology has become an important development direction of human-computer interaction in the fields of smart home, smart car, smart customer service, etc. due to its convenient and natural interaction method. However, the quality problem of voice collection in complex environments has seriously restricted the further promotion and application of this technology. At present, most voice recognition devices on the market use a single microphone design, which can only achieve near-field sound pickup within a radius of 1 meter. In actual application scenarios, once the distance range is exceeded, the strength of the voice signal will be significantly attenuated. In addition, a single microphone lacks the ability to effectively suppress environmental noise. When in noisy environments such as shopping malls and transportation hubs, or when there is background noise generated by the operation of equipment such as televisions and air conditioners, environmental noise can easily interfere with voice signal collection, causing the command recognition accuracy rate to drop below 60%. In addition, some existing data acquisition devices designed for high acquisition performance often have complex structures. These devices integrate a large number of mechanical parts and electronic components. During operation, the vibration of the mechanical parts will generate structural noise, and the electromagnetic interference between the electronic components will also introduce circuit noise. These self-generated noises are superimposed on the voice signals to be collected, further increasing the difficulty of voice recognition, making it difficult for the effective pickup range and recognition accuracy of the device in complex environments to meet actual usage requirements. Summary of the invention

[0003] The purpose of the present invention is to provide a data acquisition device for speech recognition in view of the deficiencies in the prior art, so as to achieve the purposes of strong anti-interference ability, accurate sound pickup and wide coverage.

[0004] A data acquisition device for voice recognition, comprising a collection box, wherein a module mainboard is provided in the collection box, and a collection processing module and a communication module are integrated on the module mainboard, so as to collect and process the received voice and transmit instructions to the outside, and in actual applications, a plurality of data acquisition devices are placed according to actual needs, and each device collects voice in linkage, so as to achieve a more accurate and wider coverage effect, a through groove is provided on the side wall of the collection box, a floating groove shell is slidably clamped on the inner wall of the through groove, a driving device is fixed between the inner walls of the lower part of the through groove, and the driving device is used to control the moving position of the floating groove shell; It also includes a collection component for sound pickup. The collection component is installed on the floating groove housing through a buffer component. The collection component includes a bearing plate. The front panel of the bearing plate is arc-shaped and is fixed with a main pickup. The main pickup is used to collect the voice coming from the front. When setting, it is preferably to use pickups with different frequency ranges at the same time, and the number is preferably set to more than two. On the rear sides of the two side edges of the bearing plate, there are inclined surfaces, and auxiliary pickups are respectively installed on the inclined surfaces. One side of the collection box is provided with a power connector through a power cord.

[0005] An assembly foot plate is fixed on the side wall of the collection box. Assembly holes are opened on the assembly foot plate. A vertical baffle is fixed on the edge of the through groove. An upper protection plate is fixed at the top of the through groove. A lower protection plate is fixed at the bottom of the through groove. The vertical baffle is arranged on one side of the collection box and can cooperate with the assembly foot plate, so that the collection box has more heat dissipation space and will not be close to external components during installation and use.

[0006] Heat dissipation fins are fixed on the side wall of the collection box. The heat dissipation fins are located on both sides of the vertical baffle, and the heat dissipation fins are beneficial to heat dissipation.

[0007] The driving device includes a bottom plate part fixed on the inner wall of the through groove. A driving motor is fixed at the bottom of the bottom plate part. A driving lead screw is fixed on the output shaft of the driving motor. The driving lead screw passes through the bottom plate part and extends upward.

[0008] A driving block is fixed on the lower inner wall of the floating groove housing. A driving hole with internal threads is opened on the driving block. The driving hole is sleeved on the driving lead screw.

[0009] The side of the bearing plate away from the floating groove housing is the front panel. A horizontal seat is fixed on the side wall of the bearing plate. A central shaft is fixed at the bottom of the horizontal seat. Convex rings are fixed on the upper part and the bottom end of the outer wall of the central shaft. A limiting structure is provided at the position corresponding to the convex ring. The limiting mechanism is used to prevent the central shaft from moving excessively.

[0010] The buffer component includes a magnetic seat located below the central shaft. A soft layer is wrapped on the outer wall of the central shaft. A buffer part is arranged outside the soft layer. Extrusion shells are fixed on both sides of the buffer part. A limiting column is fixed on the side wall of the extrusion shell. A limiting cylinder is fixed on the inner wall of the floating groove housing. One end of the limiting column extends into the limiting cylinder. The buffer component can isolate the vibration transmitted from the collection box and ensure better operation of the collection component.

[0011] An adjusting nut is installed on the outer wall of the limiting cylinder by means of threads. A gasket is sleeved outside the limiting cylinder. A buffer spring is fixedly connected between the gasket and the extrusion shell. The contact between the central shaft and the external buffer layer is a soft contact. The central shaft can still rotate, but the contact pressure between the relative buffer layer and the soft layer is adjusted by the adjusting nut pushing the buffer spring.

[0012] Magnetic blocks are embedded in the upper surface of the magnetic base and the bottom of the central shaft. The magnetic blocks on both sides repel each other, and the repulsive force is used to support the acquisition component, so as to reduce vibration transmission.

[0013] The limiting structure includes a frame fixed on the inner wall of the floating groove shell. A rotating column is rotatably installed at the bottom of the frame, and the rotating columns are distributed outside the convex ring.

[0014] The technical effects and advantages of the present invention: 1. Multiple pickups cooperate to improve accuracy and coverage: The voice recognition data acquisition device of the present invention uses multiple pickups, including a main pickup and a secondary pickup. The main pickup selects different frequency ranges and can collect voices from multiple directions and frequency ranges. Compared with the existing single microphone design device, the pickup accuracy and coverage are significantly improved, and the pickup limitation problem of the existing device is solved.

[0015] 2. The buffer component isolates vibration to ensure the quality of sound acquisition: The acquisition component is installed in the floating groove shell by means of the buffer component. This component is composed of a magnetic base, a soft layer, a buffer part, an extrusion shell, a limiting column, a limiting cylinder, an adjusting nut, a gasket and a buffer spring, etc. It can effectively isolate the vibration transmitted from the acquisition box, avoid the influence of the existing device on sound acquisition during operation, ensure the stable operation of the acquisition component, improve the quality of sound acquisition, and extend the service life of the component.

[0016] 3. The driving device flexibly adjusts the pickup position: The driving device can control the movement of the floating groove shell, and then adjust the position of the acquisition component. It can flexibly change the pickup position according to actual needs. Compared with the existing device with a fixed pickup position, the flexibility and accuracy of pickup are enhanced.

[0017] 4. The heat dissipation design ensures the stable operation of the device: The vertical baffle on the side wall of the acquisition box cooperates with the assembly foot plate to provide more heat dissipation space for the acquisition box. The heat sink further facilitates heat dissipation, avoids the influence of overheating on the performance of the existing device, and ensures the stable operation of the device. Description of the drawings

[0018] Figure 1 It is a schematic diagram of the back structure of the present invention; Figure 2 It is a three-dimensional structure schematic diagram of the present invention; Figure 3Schematic diagram of the position of the buffer assembly of the present invention; Figure 4 Schematic diagram of the limiting structure of the present invention; Figure 5 Schematic diagram of the structure of the buffer part of the present invention; Figure 6 Schematic diagram of the structure of the driving device of the present invention; Figure 7 Schematic cross-sectional structure diagram of the buffer assembly of the present invention.

[0019] In the figure: 1. Acquisition box; 101. Assembly foot plate; 102. Vertical baffle; 103. Upper guard plate; 104. Lower guard plate; 105. Heat sink; 2. Floating groove shell; 201. Driving block; 3. Driving device; 301. Bottom plate part; 302. Driving motor; 303. Driving lead screw; 4. Acquisition component; 401. Bearing plate; 402. Main pick-up; 403. Sub pick-up; 404. Horizontal seat; 405. Central axis; 406. Convex ring; 5. Buffer assembly; 501. Magnetic seat; 502. Soft layer; 503. Buffer part; 504. Extrusion shell; 505. Limit post; 506. Limit cylinder; 507. Adjusting nut; 508. Gasket; 509. Buffer spring; 6. Limiting structure; 601. Frame body; 602. Rotating column. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-7 As shown, a data acquisition device for voice recognition includes an acquisition box 1. A module main board is provided in the acquisition box 1, and a collection and processing module and a communication module are integrated on the module main board, so as to collect and process the received voice and transmit instructions to the outside. And in actual applications, multiple such data acquisition devices are placed according to actual needs, and each device is linked to collect voice, so as to achieve a more accurate and wider coverage effect. A through groove is provided on the side wall of the acquisition box 1, and a floating groove shell 2 is slidably clamped on the inner wall of the through groove. A driving device 3 is fixed between the inner walls of the lower part of the through groove, and the driving device 3 is used to control the moving position of the floating groove shell 2; It further includes an acquisition component 4 for sound pickup. The acquisition component 4 is installed on the floating groove housing 2 through a buffer component 5. The acquisition component 4 includes a carrier plate 401. The front panel of the carrier plate 401 is arc-shaped and is fixed with a main pickup 402. The main pickup 402 is used to collect the voice coming from the front. And when setting, it is preferably to use pickups with different frequency ranges at the same time, and the number is preferably set to more than two. On the rear sides of the two side edges of the carrier plate 401, there are inclined surfaces, and auxiliary pickups 403 are respectively installed on the inclined surfaces. One side of the acquisition box 1 is provided with a power connector through a power cord. An assembly foot plate 101 is fixed on the side wall of the acquisition box 1. Assembly holes are opened on the assembly foot plate 101. A vertical baffle 102 is fixed on the edge of the through groove. An upper guard plate 103 is fixed at the top of the through groove. A lower guard plate 104 is fixed at the bottom of the through groove. The vertical baffle 102 is arranged on one side of the acquisition box 1 and can cooperate with the assembly foot plate 101, so that the acquisition box 1 has more heat dissipation space and will not be close to external components during installation and use. A heat sink 105 is fixed on the side wall of the acquisition box 1. The heat sink 105 is located on both sides of the vertical baffle 102. The heat sink 105 is beneficial to heat dissipation.

[0022] The driving device 3 includes a bottom plate member 301 fixed on the inner wall of the through groove. A driving motor 302 is fixed at the bottom of the bottom plate member 301. A driving lead screw 303 is fixed on the output shaft of the driving motor 302. The driving lead screw 303 passes through the bottom plate member 301 and extends upward. A driving block 201 is fixed on the lower inner wall of the floating groove housing 2. A driving hole with internal threads is opened on the driving block 201. The driving hole is sleeved on the driving lead screw 303.

[0023] The side of the carrier plate 401 away from the floating groove housing 2 is the front panel. A horizontal seat 404 is fixed on the side wall of the carrier plate 401. A central shaft 405 is fixed at the bottom of the horizontal seat 404. Convex rings 406 are fixed on the upper part and the bottom end of the outer wall of the central shaft 405. A limiting structure 6 is provided at the position corresponding to the convex ring 406. The limiting mechanism is used to block the excessive movement of the central shaft 405. The limiting structure 6 includes a frame body 601 fixed on the inner wall of the floating groove housing 2. A rotating column 602 is rotatably installed at the bottom of the frame body 601. The rotating columns 602 are distributed outside the convex ring 406.

[0024] The buffer assembly 5 includes a magnetic base 501 located below the central axis 405. A soft layer 502 is wrapped around the outer wall of the central axis 405. A buffer portion 503 is provided outside the soft layer 502. Extrusion shells 504 are fixed on both sides of the buffer portion 503. Limit posts 505 are fixed on the side walls of the extrusion shells 504. Limit cylinders 506 are fixed on the inner wall of the floating groove shell 2. One end of the limit post 505 extends into the limit cylinder 506. The buffer assembly 5 can isolate the vibration transmitted from the collection box 1, ensuring better operation of the collection component 4. Magnetic blocks are embedded in the upper surface of the magnetic base 501 and the bottom of the central axis 405. The magnetic blocks on both sides repel each other, and the repulsive force is used to support the collection component 4, so as to reduce vibration transmission. An adjusting nut 507 is installed on the outer wall of the limit cylinder 506 by means of threads. A gasket 508 is sleeved outside the limit cylinder 506. A buffer spring 509 is fixedly connected between the gasket 508 and the extrusion shell 504. The contact between the central axis 405 and the external buffer layer is a soft contact. The central axis 405 can still rotate, but the contact pressure between the relative buffer layer and the soft layer 502 is adjusted by the adjusting nut 507 pushing the buffer spring 509.

[0025] When the device is turned on, the power connector supplies power to the module main board in the collection box 1 through the power cord, enabling the collection processing module and the communication module integrated on the module main board to start running. The main pickup 402 and the secondary pickup 403 in the collection component 4 start to work. Since the main pickup 402 is arranged on the arc-shaped front panel of the carrier plate 401, it can effectively collect the voice coming from the front, and multiple main pickups 402 with different frequency ranges work together to cover a wider voice frequency; the secondary pickup 403 is installed on the inclined surfaces at the rear sides of the two side edges of the carrier plate 401, and can collect the voice from the side, collecting the voice from multiple directions and frequency ranges, greatly improving the accuracy and coverage of sound pickup.

[0026] The collected voice signals are transmitted to the collection processing module. After the collection processing module processes the voice signals, it sends commands to the outside through the communication module; in practical applications, multiple such data collection devices can be placed according to needs, and the devices are interconnected with each other to further enhance the accuracy and coverage of voice collection.

[0027] The driving device 3 can adjust the position of the collection component 4. The driving motor 302 is started to drive the driving lead screw 303 to rotate. Since the driving hole on the driving block 201 is sleeved on the driving lead screw 303, the rotation of the driving lead screw 303 will cause the driving block 201 to drive the floating groove shell 2 to slide in the through groove, thereby changing the position of the collection component 4 to meet different sound pickup requirements.

[0028] The buffer component 5 plays a key shock-absorbing role during the operation of the device; there is a soft contact between the central shaft 405 and the buffer layer, and the magnetic seat 501 and the magnetic block at the bottom of the central shaft 405 repel each other, which can support the acquisition component 4 and reduce the vibration transmission. The extrusion shells 504 on both sides of the buffer part 503 are matched with the limit cylinders 506 through the limit posts 505. The buffer spring 509 adjusts the contact pressure between the buffer layer and the soft layer 502 under the action of the adjusting nut 507, further isolating the vibration transmitted from the acquisition box 1, ensuring the stable operation of the acquisition component 4, and improving the quality of sound acquisition.

[0029] The vertical baffle 102 on the side wall of the acquisition box 1 is matched with the assembly foot plate 101, providing more heat dissipation space for the acquisition box 1. The heat sink 105 further enhances the heat dissipation effect, avoiding the performance of the device being affected by overheating, and ensuring the stable operation of the device. The rotating columns 602 in the limit structure 6 are distributed outside the convex ring 406 of the central shaft 405, which can prevent the central shaft 405 from moving excessively and ensure the stability of the position of the acquisition component 4.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A data acquisition device for speech recognition, comprising an acquisition box (1), wherein a module main board is arranged inside the acquisition box (1), and the features are as follows: A through groove is provided on the side wall of the collection box (1), and a floating groove shell (2) is slidably clamped on the inner wall of the through groove. A driving device (3) is fixed between the inner walls at the lower part of the through groove, and the driving device (3) is used to control the moving position of the floating groove shell (2). It further includes a collection component (4) for sound pickup. The collection component (4) is installed on the floating groove shell (2) through a buffer component (5). The collection component (4) includes a bearing plate (401). The front panel of the bearing plate (401) is arc-shaped and is fixed with a main pickup (402). Bevels are provided on the rear sides of the two side edges of the bearing plate (401), and auxiliary pickups (403) are respectively installed on the bevels. One side of the collection box (1) is provided with a power connector through a power cord.

2. The data acquisition device for speech recognition according to claim 1, wherein: An assembly foot plate (101) is fixed on the side wall of the collection box (1). Assembly holes are provided in the assembly foot plate (101). A vertical baffle (102) is fixed at the edge of the through groove, an upper guard plate (103) is fixed at the top end of the through groove, and a lower guard plate (104) is fixed at the bottom end of the through groove.

3. The data acquisition device for speech recognition according to claim 2, characterized in that: Heat dissipation fins (105) are fixed on the side wall of the collection box (1), and the heat dissipation fins (105) are located on both sides of the vertical baffle (102).

4. The data acquisition device for speech recognition according to claim 1, characterized in that: The driving device (3) includes a bottom plate member (301) fixed on the inner wall of the through groove. A driving motor (302) is fixed at the bottom of the bottom plate member (301). A driving lead screw (303) is fixed on the output shaft of the driving motor (302), and the driving lead screw (303) passes through the bottom plate member (301) and extends upward.

5. The data acquisition device for speech recognition according to claim 4, characterized in that: A driving block (201) is fixed on the lower inner wall of the floating groove shell (2). A driving hole with internal threads is provided in the driving block (201), and the driving hole is sleeved on the driving lead screw (303).

6. The data acquisition device for speech recognition according to claim 1, wherein: The side of the bearing plate (401) away from the floating groove shell (2) is the front panel. A horizontal seat (404) is fixed on the side wall of the bearing plate (401). A central shaft (405) is fixed at the bottom of the horizontal seat (404). Convex rings (406) are fixed on both the upper part and the bottom end of the outer wall of the central shaft (405), and a limiting structure (6) is provided at the position corresponding to the convex rings (406).

7. The data acquisition device for speech recognition according to claim 6, characterized in that: The buffer component (5) includes a magnetic seat (501) located below the central shaft (405). A soft layer (502) is wrapped on the outer wall of the central shaft (405). A buffer part (503) is provided outside the soft layer (502). Extrusion shells (504) are fixed on both sides of the buffer part (503). A limiting post (505) is fixed on the side wall of the extrusion shell (504). A limiting cylinder (506) is fixed on the inner wall of the floating groove shell (2), and one end of the limiting post (505) extends into the limiting cylinder (506).

8. The data acquisition device for speech recognition according to claim 7, wherein: An adjusting nut (507) is installed on the outer wall of the limiting cylinder (506) by means of threads. A gasket (508) is sleeved outside the limiting cylinder (506), and a buffer spring (509) is fixedly connected between the gasket (508) and the extrusion shell (504).

9. The data acquisition device for speech recognition according to claim 7, characterized in that: Magnetic blocks are embedded in the upper surface of the magnetic base (501) and the bottom of the central shaft (405), and the magnetic blocks on both sides repel each other.

10. The data acquisition device for speech recognition according to claim 6, characterized in that: The limiting structure (6) includes a frame body (601) fixed on the inner wall of the floating groove shell (2). A rotating column (602) is rotatably installed at the bottom of the frame body (601), and the rotating columns (602) are distributed outside the convex ring (406).

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