CN223130707U - Robot voice system - Google Patents

Abstract

The utility model discloses a robot voice system which comprises a main control board, a sound card board, a microphone array and a damping washer, wherein the main control board is electrically connected with the sound card board, the microphone board is integrated with the microphone board, the microphone board is electrically connected with the microphone array, the sound card board is fastened in a head shell of a robot through a first bolt, the damping washer is arranged between the head shell and the sound card board, and slotted holes for the first bolt to pass through are respectively formed in the damping washer and the sound card board. According to the technical scheme, through the well-designed microphone array layout and the shock absorption measures, the microphone array is arranged on the head of the robot, the shock absorption gasket is arranged to not only insulate sound, but also remarkably reduce background noise and internal echo, so that voice signals are clearer, and the accuracy of a voice recognition system is improved.

Description

Robot voice system

Technical Field

The utility model relates to the field of robots, in particular to a robot voice system.

Background

Robots are automated machines capable of performing a complex series of tasks, and are generally composed of mechanical, electronic and software systems. Robots may be designed to mimic human or animal behavior, or to be entirely different from any biological modality, to accommodate specific task requirements.

With the continuous development of intelligent robot technology, voice interaction becomes one of the important modes of man-machine communication. In order to achieve high quality speech recognition and synthesis, the robot's speech system needs to have excellent audio acquisition and processing capabilities.

Because the interior of the robot is compact, the microphone is often susceptible to sound from its speaker, resulting in echo or noise problems, which affect the quality of the speech signal.

Disclosure of utility model

Therefore, it is necessary to provide a robot voice system to solve the problems that the existing robot has a compact internal structure, a microphone is often easily affected by sound emitted from a speaker of the microphone, and thus echo or noise is caused, and the quality of voice signals is affected.

To achieve the above object, this embodiment provides a robot voice system, including main control board, sound cardboard, microphone board, microphone array and damping washer, the main control board with sound card board electricity is connected, the sound card board integration has the microphone board, the microphone board with microphone array electricity is connected, the sound card board passes through first bolt-up in the head shell of robot, damping washer establishes the head shell with between the sound card board, damping washer the sound card board is equipped with respectively and supplies the slotted hole that first bolt passed.

Further, the head shell comprises a support, wherein the support supports the sound card plate below the sound card plate and is fastened to the top of the inner side of the head shell through a second bolt.

Further, the sound card plate is fastened to the inner top of the head housing through a first bolt, and the bracket is fastened to the inner top of the head housing through a second bolt.

Further, a screw hole column protruding downwards is arranged on the top of the inner side of the head shell, and the screw hole column is in threaded connection with the second bolt.

Further, the microphone plate is located on the lower surface of the sound card plate and protrudes, the microphone array is inserted below the microphone plate, and the bracket is provided with a through hole for accommodating the microphone plate.

Further, the head shell comprises an upper shell body, a front shell body and a lower shell body, wherein the front shell body is connected with the lower shell body through a buckle, the front shell body is positioned in front of the lower shell body, the upper shell body is positioned above the front shell body and the lower shell body, the upper shell body is connected with the lower shell body through a buckle bolt, and a cavity for accommodating the main control board, the sound clamping board, the microphone plate, the microphone array and the damping gasket is formed between the upper shell body and the lower shell body.

Further, the robot further comprises a loudspeaker, wherein the loudspeaker is electrically connected with the main control board and is arranged on the body of the robot.

Further, the number of the speakers is 2, and the 2 speakers are positioned on the left side and the right side of the vehicle body.

Further, the microphone array has 6 microphones.

Compared with the prior art, the microphone array is arranged at the head of the robot through the well-designed microphone array layout and damping measures, the damping gasket is arranged to not only insulate sound, but also remarkably reduce background noise and internal echo, so that the voice signal is clearer, and the accuracy of the voice recognition system is improved.

Drawings

FIG. 1 is an exploded view of a main control panel, an acoustic card, a microphone plate, a shock absorbing gasket and a bracket in this embodiment;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a perspective view of the main control board, the sound card and the head housing in this embodiment;

Fig. 4 is a perspective view of the sound card and the microphone board in the present embodiment;

fig. 5 is an exploded view of the bracket and the upper case in the present embodiment;

FIG. 6 is a bottom view of FIG. 5;

Fig. 7 is a perspective view of the head housing in the present embodiment;

Fig. 8 is a perspective view of the horn in the present embodiment.

Reference numerals illustrate:

1. a main control board;

2. an acoustic card;

3. a microphone plate;

4. A shock-absorbing washer;

5. an upper housing;

6. A front face housing;

7. a lower housing;

8. 81, through holes;

9. a horn;

10. Screw hole columns;

11. and a second bolt.

Detailed Description

In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present application in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only for more clearly illustrating the technical aspects of the present application, and thus are only exemplary and not intended to limit the scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from 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 may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application pertains, and the use of related terms herein is intended only to describe specific embodiments, not to limit the present application.

In the description of the present application, the term "and/or" is a representation for describing a logical relationship between objects, meaning that three relationships may exist, for example, a and/or B, meaning that there are a, B, and both a and B. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.

In the present application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.

Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this specification is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.

In the present application, the expressions "greater than", "less than", "exceeding" and the like are understood to exclude the present number, and the expressions "above", "below", "within" and the like are understood to include the present number, as well as the expressions "examining the guideline" and the like. Furthermore, in the description of embodiments of the present application, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of" and the like, unless specifically defined otherwise.

In the description of embodiments of the present application, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as a basis for the description of the embodiments or as a basis for the description of the embodiments, and are not intended to indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation and therefore should not be construed as limiting the embodiments of the present application.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "affixed," "disposed," and the like as used in the description of embodiments of the application should be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral connection, may be a mechanical connection, an electrical connection, or a communication connection, may be a direct connection or an indirect connection through an intermediary, or may be a communication between two elements or an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains according to circumstances.

Referring to fig. 1 to 8, the present embodiment provides a robot voice system, which includes a main control board 1, a sound card board 2, a microphone plate 3, a microphone array and a damping washer 4, wherein the main control board 1 is electrically connected with the sound card board 2, the microphone plate 3 is integrated with the sound card board 2, the microphone plate 3 is electrically connected with the microphone array, the sound card board 2 is fastened in a head housing of the robot through a first bolt, the damping washer 4 is arranged between the head housing and the sound card board 2, and the damping washer 4 and the sound card board 2 are respectively provided with slots for the first bolt to pass through.

The microphone array is a pickup system for sampling and processing the spatial characteristics of a sound field, receiving a voice signal from a user, converting an analog signal into a digital signal, transmitting the digital signal to the sound card 2 for further processing, performing preprocessing such as noise reduction and echo cancellation on the received sound data by the sound card 2, transmitting the preprocessed audio signal to the main control board 1, performing voice recognition and command analysis there, determining how to respond by the main control board 1 according to the recognized command, and outputting synthesized voice through the sound card 2 and a speaker for feedback to the user.

The damping washer 4 is made of soft material (such as silica gel, rubber, sponge, etc.), is arranged between the head shell and the sound card plate 2, is fully contacted with the sound card plate 2, can perform sound insulation, and can reduce vibration transmission and reduce the influence of sound generated by other elements on the sound card plate 2 and the microphone array.

Referring to fig. 1, 2, 5 and 6, in the present embodiment, the robot voice system further includes a bracket 8, and the bracket 8 supports the sound card 2 below the sound card 2 and is fastened to the top of the inside of the head housing by a second bolt 11. The support 8 is a rigid or semi-rigid structural member that is shaped and sized according to the design of the sound card 2 to provide stable support for the sound card 2. The sound card 2 is initially fixed in the head housing using a first bolt through slots in the shock absorbing washer 4 and the sound card 2. Then, the bracket 8 is fixed to the top of the inside of the head housing using the second bolts 11, and the bracket 8 supports the sound card 2 from below, thus forming a double fixing structure preventing displacement or damage due to long-term use or accidental impact.

Referring to fig. 1, in the present embodiment, a screw hole post 10 protruding downward is provided on the top of the inner side of the head housing, and the screw hole post 10 is screwed with a second bolt 11. The screw hole column 10 is positioned at the top of the inner side of the head shell and protrudes downwards, and is internally provided with threads for being matched with the second bolt 11. The second bolt 11 passes through the hole on the bracket 8 and is tightly connected with the screw thread in the screw hole post 10 to fix the bracket 8 at a preset position. The screw hole column 10 provides a supporting point for the second bolt 11, reduces displacement caused by looseness or vibration, and further improves the stability of the system.

Referring to fig. 4 and 6, in the present embodiment, the microphone plate 3 is disposed on the lower surface of the sound card 2 and protrudes, the microphone array is inserted below the microphone plate 3, and the bracket 8 is provided with a through hole 81 for accommodating the microphone plate 3 and the microphone array, so as to better expose to the environment and reduce shielding.

Referring to fig. 3 and 7, in the present embodiment, the head shell includes an upper shell 5, a front shell 6 and a lower shell 7, the front shell 6 is connected with the lower shell 7 through a buckle, the front shell 6 is located in front of the lower shell 7, the upper shell 5 is located above the front shell 6 and the lower shell 7, the upper shell 5 is connected with the lower shell 7 through 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 damping washer 4 is formed between the three. The front face housing 6 is located in front of the lower housing 7 and typically contains the "facial" features of the robot. The lower shell 7 is in the same horizontal plane with the front face shell 6, and the two are opposite to each other in front-back direction. The upper housing 5 is located uppermost of the entire head housing, covering and protecting the internal components.

Referring to fig. 8, in the present embodiment, the robot voice system further includes a speaker 9, where the speaker 9 is electrically connected to the main control board 1 and the sound card board 2 and is disposed on a vehicle body of the robot. Specifically, the extraction interfaces of the sound card 2 and the main control board 1 are respectively electrically connected with the loudspeaker 9. The speaker 9 is a component for converting an electric signal into an acoustic signal for playing a synthesized voice or a warning sound. The horn 9 is mounted on the vehicle body, usually in a position where sound is easy to propagate and is not easily shielded.

When a user sends a voice command to the robot, the microphone array captures a sound signal, and the sound signal is transmitted to the main control board 1 after being preprocessed (such as noise reduction, echo cancellation and the like) by the microphone plate 3 and the sound card board 2. 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 loudspeaker 9 through a circuit. After receiving the electric signal, the speaker 9 converts the electric signal into a sound waveform and plays the sound waveform. These sounds may be synthesized speech, music, or other alert tones.

Referring to fig. 8, in the present embodiment, there are 2 speakers 9, and 2 speakers 9 are located on the left and right sides of the vehicle body. Since the speakers 9 are distributed on both sides of the vehicle body, sound can be propagated from different directions, thereby expanding the coverage of sound.

In this embodiment, the microphone array has 6 microphones, allowing simultaneous capture of sound from multiple angles, improving the localization of the sound source location.

In this embodiment, the sound card 2 and the main control board 1 may be connected through a USB interface and a connection line.

In the embodiment, the head shell of the robot is provided with the through hole, so that sound transmission is facilitated, and the microphone array is convenient to capture.

It should be noted that, although the foregoing embodiments have been described herein, the scope of the present utility model is not limited thereby. Therefore, based on the innovative concepts of the present utility model, alterations and modifications to the embodiments described herein, or equivalent structures or equivalent flow transformations made by the present description and drawings, apply the above technical solutions directly or indirectly to other relevant technical fields, all of which are included in the scope of protection of the present patent.

Claims (9)

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 is integrated with 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, and the shock-absorbing washer and the sound card board are respectively provided with slots for the first bolt to pass through. 2. The robot voice system according to claim 1 is characterized in that it also includes a bracket, which 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 is characterized in that 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. 4. The robot voice system according to claim 2, characterized in that 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. 5. The robot voice system according to claim 2 is characterized in that the microphone board is located on the lower surface of the sound card board and is protruding, the microphone array is plugged under the microphone board, and 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 is 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 snap-fit, 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 snap-fit bolts, and a cavity for accommodating the main control board, the sound card board, the microphone board, the microphone array and the shock-absorbing gasket is formed between the three. 7. The robot voice system according to any one of claims 1 to 5, characterized in that it also includes a speaker, which 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 two speakers, and the two speakers are located on the left and right sides of the vehicle body. 9. The robot voice system according to any one of claims 1 to 5, characterized in that the microphone array has 6 microphones.