Robot voice system
By setting up a microphone array and shock absorber on the head of the robot, combined with the bracket and bolt-fixing structure, the echo and noise problems caused by the compact internal structure of the robot are solved, and the clarity of the voice signal and recognition accuracy are improved.
Patent Information
- Application Number
- CN202422428865.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The robot has a compact internal structure, and the microphone is susceptible to the sound emitted by its own speakers, resulting in echo or noise problems, affecting the quality of the voice signal.
The carefully designed microphone array layout and shock absorbing gaskets are adopted. The microphone array is set on the robot head, and the shock absorbing gaskets are set between the head housing and the sound card board. Combined with the bracket and bolt fixing structure, it reduces background noise and internal echo.
It significantly reduces background noise and internal echoes, improves the clarity of the speech signal and the accuracy of the speech recognition system.
Smart Images
Figure CN223130707U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of robots, and particularly to a robot voice system. Background Art
[0002] A robot is an automated machine capable of performing a series of complex tasks. It usually consists of mechanical, electronic, and software systems. Robots can be designed to imitate human or animal behavior, or be completely different from any biological form to adapt to specific task requirements.
[0003] With the continuous development of intelligent robot technology, voice interaction has become one of the important ways of human-machine communication. In order to achieve high-quality speech recognition and synthesis, the voice system of a robot needs to have excellent audio acquisition and processing capabilities.
[0004] Due to the compact internal structure of the robot, the microphone is often easily affected by the sound emitted from its own speaker, resulting in echo or noise problems, thus affecting the quality of the voice signal. Summary of the Utility Model
[0005] Therefore, it is necessary to provide a robot voice system to solve the problem that in the existing robot, due to its compact internal structure, the microphone is often easily affected by the sound emitted from its own speaker, resulting in echo or noise problems and affecting the quality of the voice signal.
[0006] To achieve the above object, this embodiment provides a robot voice system, including a main control board, a sound card board, a microphone board, a microphone array, and a shock-absorbing gasket. The main control board is electrically connected to the sound card board. The sound card board integrates the microphone board. The microphone board is electrically connected to the microphone array. The sound card board is fastened inside the head shell of the robot by a first bolt. The shock-absorbing gasket is arranged between the head shell and the sound card board. The shock-absorbing gasket and the sound card board are respectively provided with slot holes for the first bolt to pass through.
[0007] Further, it further includes a bracket. The bracket supports the sound card board below the sound card board and is fastened to the inner top of the head shell by a second bolt.
[0008] Further, the sound card board is fastened to the inner top of the head shell by a first bolt, and the bracket is fastened to the inner top of the head shell by a second bolt.
[0009] Further, a screw hole column protruding downward is provided on the inner top of the head shell, and the screw hole column is threadedly connected to the second bolt.
[0010] Further, the microphone board is located on the lower surface of the sound card board and protrudes, and the microphone array is plugged below the microphone board. The bracket is provided with a through hole for accommodating the microphone board.
[0011] Further, the head shell includes an upper shell, a front face shell and a lower shell. The front face shell and the lower shell are connected by a buckle. The front face shell is located in front of the lower shell, and the upper shell is located above the front face shell and the lower shell. The upper shell and the lower shell are connected by a buckle bolt, and a cavity for accommodating the main control board, the sound card board, the microphone board, the microphone array and the shock pad is formed among the three.
[0012] Further, a speaker is further included. The speaker is electrically connected to the main control board and is provided on the body of the robot.
[0013] Further, there are 2 speakers, and the 2 speakers are located on the left and right sides of the body.
[0014] Further, the microphone array has 6 microphones.
[0015] Different from the prior art, the above technical solution, through the carefully designed microphone array layout and shock absorption measures, arranges the microphone array on the head of the robot. The setting of the shock pad can not only isolate sound, but also significantly reduce background noise and internal echo, making the voice signal clearer, and thus improving the accuracy of the voice recognition system. Description of the Drawings
[0016] Figure 1 It is an exploded view of the main control board, the sound card board, the microphone board, the shock pad and the bracket in this embodiment;
[0017] Figure 2 It is Figure 1 the front view of;
[0018] Figure 3 It is a three-dimensional view of the main control board, the sound card board and the head shell in this embodiment;
[0019] Figure 4 It is a three-dimensional view of the sound card board and the microphone board in this embodiment;
[0020] Figure 5 It is an exploded view of the bracket and the upper shell in this embodiment;
[0021] Figure 6 It is Figure 5 the bottom view of;
[0022] Figure 7 It is a three-dimensional view of the head shell in this embodiment;
[0023] Figure 8 This is a perspective view of the speaker in this embodiment.
[0024] Explanation of the reference numerals in the drawings:
[0025] 1. Main control board;
[0026] 2. Sound card board;
[0027] 3. Microphone board;
[0028] 4. Shock-absorbing washer;
[0029] 5. Upper housing;
[0030] 6. Front face housing;
[0031] 7. Lower housing;
[0032] 8. Bracket; 81. Through hole;
[0033] 9. Speaker;
[0034] 10. Screw hole post;
[0035] 11. Second bolt. Detailed implementation manners
[0036] To describe in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of the present application, the following will be described in detail with reference to the specific examples listed and in conjunction with the drawings. The examples described herein are only used to more clearly illustrate the technical solutions of the present application, so they are only examples and cannot be used to limit the protection scope of the present application.
[0037] Referring to "embodiment" in this article means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" that appears in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form the corresponding implementable technical solution.
[0038] Unless otherwise defined, the meanings of the technical terms used in this article are the same as those generally understood by those skilled in the technical field to which the present application belongs; the use of the relevant terms in this article is only for describing specific embodiments and is not intended to limit the present application.
[0039] In the description of the present application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this text generally represents an "or" logical relationship between the associated objects before and after.
[0040] In the present application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary or sequential relationships between these entities or operations.
[0041] Without further limitations, in the present application, the expressions "include", "comprise", "have" or other similar expressions used in a statement are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method or product including the said elements. Thus, a process, method or product including a series of elements may not only include those defined elements, but also include other elements not explicitly listed, or elements inherent to such process, method or product.
[0042] Similar to the understanding in the "Examination Guidelines", in the present application, expressions such as "greater than", "less than", "exceeding" are understood not to include the recited number; expressions such as "above", "below", "within" are understood to include the recited number. In addition, in the description of the embodiments of the present application, the meaning of "a plurality of" is two or more (including two). Similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in this way unless otherwise specifically defined.
[0043] In the description of the embodiments of the present application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiment or the drawings. It is only for the convenience of describing the specific embodiments of the present application or for the reader's understanding, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of the present application.
[0044] Unless otherwise clearly specified or defined, in the description of the embodiments of the present application, terms such as "installation", "connection", "linkage", "fixation", and "setting" shall be understood in a broad sense. For example, the "connection" may be a fixed connection, a detachable connection, or an integral setting; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection or an indirect connection through an intermediate medium; it may be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application may be understood according to specific circumstances.
[0045] Please refer to Figures 1 to 8 , this embodiment provides a robot voice system, including a main control board 1, a sound card board 2, a microphone board 3, a microphone array, and a shock absorber gasket 4. The main control board 1 is electrically connected to the sound card board 2. The sound card board 2 integrates the microphone board 3. The microphone board 3 is electrically connected to the microphone array. The sound card board 2 is fastened in the head housing of the robot through a first bolt. The shock absorber gasket 4 is arranged between the head housing and the sound card board 2. The shock absorber gasket 4 and the sound card board 2 are respectively provided with slots for the first bolt to pass through.
[0046] The microphone array is a sound pickup system used to sample and process the spatial characteristics of the sound field. It receives the voice signal from the user, converts the analog signal into a digital signal, and then transmits it to the sound card board 2 for further processing. The sound card board 2 can perform preprocessing such as noise reduction and echo cancellation on the received sound data. The preprocessed audio signal is sent to the main control board 1, where voice recognition and command parsing are performed. According to the recognized command, the main control board 1 can decide how to respond and output the synthesized voice feedback to the user through the sound card board 2 and the speaker.
[0047] The shock absorber gasket 4 is a soft material (such as silica gel, rubber, sponge, etc.), arranged between the head housing and the sound card board 2, in full contact with the sound card board 2, which can provide sound insulation, reduce vibration transmission, and reduce the influence of the sound generated by other components on the sound card board 2 and the microphone array.
[0048] Please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6, in this embodiment, the robot voice system further includes a bracket 8. The bracket 8 supports the sound card board 2 below the sound card board 2 and is fastened to the inner top of the head shell by a second bolt 11. The bracket 8 is a rigid or semi-rigid structural member, and its shape and size are customized according to the design of the sound card board 2 to provide stable support for the sound card board 2. The sound card board 2 is preliminarily fixed in the head shell by using a first bolt passing through the shock-absorbing washer 4 and the slot holes on the sound card board 2. Then, the bracket 8 is fixed to the inner top of the head shell by using the second bolt 11. The bracket 8 supports the sound card board 2 from below, thus forming a double-fixed structure to prevent displacement or damage caused by long-term use or accidental impact.
[0049] Please refer to Figure 1 , in this embodiment, a screw hole column 10 protruding downward is provided on the inner top of the head shell. The screw hole column 10 is threadedly connected to the second bolt 11. The screw hole column 10 is located on the inner top of the head shell, protruding downward, and has a thread inside for cooperating with the second bolt 11. The second bolt 11 passes through the hole on the bracket 8 and is tightly connected to the thread in the screw hole column 10 to fix the bracket 8 in a predetermined position. The screw hole column 10 provides a support point for the second bolt 11, reducing displacement caused by loosening or vibration and further improving the stability of the system.
[0050] Please refer to Figure 4 and Figure 6 , in this embodiment, the microphone board 3 is located on the lower surface of the sound card board 2 and protrudes. The microphone array is plugged below the microphone board 3. The bracket 8 is provided with a through hole 81 for accommodating the microphone board 3 and the microphone array to be better exposed to the environment and reduce occlusion.
[0051] Please refer to Figure 3 and Figure 7 , in this embodiment, the head shell includes an upper shell 5, a front face shell 6, and a lower shell 7. The front face shell 6 and the lower shell 7 are connected by a buckle. The front face shell 6 is located in front of the lower shell 7. The upper shell 5 is located above the front face shell 6 and the lower shell 7. The upper shell 5 and the lower shell 7 are connected by a buckle bolt, and a cavity for accommodating the main control board 1, the sound card board 2, the microphone board 3, the microphone array, and the shock-absorbing washer 4 is formed among the three. The front face shell 6 is located in front of the lower shell 7 and usually contains the "facial" features of the robot. The lower shell 7 is on the same horizontal plane as the front face shell 6, and the two are opposite to each other front and back. The upper shell 5 is located at the top of the entire head shell, covering and protecting the internal components.
[0052] Please refer to Figure 8, in this embodiment, the robot voice system further includes a speaker 9, which is electrically connected to the main control board 1 and the sound card board 2 and is provided on the body of the robot. Specifically, the sound card board 2 and the feedback interface of the main control board 1 may be electrically connected to the speaker 9 respectively. The speaker 9 is a component that converts an electrical signal into a sound signal and is used to play synthesized voice or prompt tones. The speaker 9 is installed on the body, usually at a position where sound is easily transmitted and not easily blocked.
[0053] When the user issues a voice command to the robot, the microphone array captures the sound signal. After preprocessing (such as noise reduction, echo cancellation, etc.) by the microphone board 3 and the sound card board 2, it is transmitted to the main control board 1. The main control board 1 identifies and processes the received audio data and generates corresponding response content. The main control board 1 transmits the generated audio data to the speaker 9 through a circuit. After receiving the electrical signal, the speaker 9 converts it into a sound waveform and plays it out. These sounds can be synthesized voice, music, or other prompt tones.
[0054] Please refer to Figure 8 , in this embodiment, there are 2 speakers 9, and the 2 speakers 9 are located on the left and right sides of the body. Since the speakers 9 are distributed on both sides of the body, the sound can be transmitted from different directions, thus expanding the sound coverage area.
[0055] In this embodiment, the microphone array has 6 microphones, allowing sound to be captured simultaneously from multiple angles, improving the ability to locate the sound source.
[0056] In this embodiment, the sound card board 2 and the main control board 1 may be connected through a USB interface and a connecting wire.
[0057] In this embodiment, the head shell of the robot is provided with through holes, which is conducive to sound transmission and convenient for the microphone array to capture.
[0058] It should be noted that although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, any changes and modifications to the embodiments described in this article, or equivalent structural or equivalent process transformations made using the content of the specification and drawings of the present invention, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the patent protection scope of the present invention.
Claims
1. A robot voice system, characterized in that, It includes a main control board, a sound card board, a microphone board, a microphone array and a shock-absorbing washer. The main control board is electrically connected to the sound card board. The sound card board integrates the microphone board. The microphone board is electrically connected to the microphone array. The sound card board is fastened in the head shell of the robot by a first bolt. The shock-absorbing washer is arranged between the head shell and the sound card board. The shock-absorbing washer and the sound card board are respectively provided with slot holes for the first bolt to pass through.
2. The robot voice system according to claim 1, characterized in that, It further includes a bracket. The bracket supports the sound card board below the sound card board and is fastened to the inner top of the head shell by a second bolt.
3. The robot voice system according to claim 2, wherein The sound card board is fastened to the inner top of the head shell by a first bolt. The bracket is fastened to the inner top of the head shell by a second bolt.
4. The robot voice system according to claim 2, characterized in that, On the inner top of the head shell, there is a screw hole column protruding downward. The screw hole column is threadedly connected to the second bolt.
5. The robot voice system according to claim 2, characterized in that, The microphone board is located on the lower surface of the sound card board and protrudes. The microphone array is plugged below the microphone board. The bracket is provided with a through hole for accommodating the microphone board.
6. The robot voice system according to any one of claims 1 to 5, characterized in that, The head shell includes an upper shell, a front face shell and a lower shell. The front face shell and the lower shell are connected by a buckle. The front face shell is located in front of the lower shell. The upper shell is located above the front face shell and the lower shell. The upper shell and the lower shell are connected by a buckle bolt. And a cavity for accommodating the main control board, the sound card board, the microphone board, the microphone array and the shock-absorbing washer is formed among the three.
7. The robot voice system according to any one of claims 1 to 5, characterized in that It further includes a speaker. The speaker is electrically connected to the main control board and the sound card board and is arranged on the body of the robot.
8. The robot voice system according to claim 7, characterized in that, There are 2 speakers. The 2 speakers are located on the left and right sides of the body.
9. The robot voice system according to any one of claims 1 to 5, characterized in that The microphone array has 6 microphones.