CN113423033B - Intelligent sound box and control method thereof - Google Patents
Intelligent sound box and control method thereof Download PDFInfo
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- CN113423033B CN113423033B CN202110795051.8A CN202110795051A CN113423033B CN 113423033 B CN113423033 B CN 113423033B CN 202110795051 A CN202110795051 A CN 202110795051A CN 113423033 B CN113423033 B CN 113423033B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/026—Supports for loudspeaker casings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
Abstract
The invention provides an intelligent sound box and a control method thereof, wherein the intelligent sound box comprises a base, a shell movably connected with the base, a loudspeaker array arranged in the shell, a microphone array and a processing unit; wherein, regulating components which are regularly distributed are arranged among the loudspeaker arrays; the microphone array is used for collecting voice signals in the environment and transmitting the voice signals to the processing unit; the processing unit is used for processing signals of the voice signals, controlling the shell to drive the loudspeaker array to rotate to a sound source position based on the signal processing result, and correspondingly adjusting the direction of the adjusting assembly according to the number of the sound sources; the speaker array is configured to form an outwardly open or inwardly convergent shape by the adjustment member and transmit an audio source signal to the audio source. The invention can improve the directivity of the loudspeaker array and achieve better audio-visual effect.
Description
Technical Field
The invention relates to the technical field of acoustics, in particular to an intelligent sound box and a control method of the intelligent sound box.
Background
With the rapid development of emerging fields such as artificial intelligence and voice interaction, the intelligent sound box also enters the life of people more and more, and the cost is a hot point in the field. The intelligent sound box is based on voice interaction ability, so that a user can control the intelligent sound box through voice, and basic intelligent home equipment can be controlled through the intelligent sound box. Compared with the traditional sound box, the intelligent sound box not only can be used for listening to music, but also comprises various audio resources such as music APP, book listening software and the like.
The speaker that current intelligent audio amplifier set up traditional mode mostly has following two problems: 1. when a user moves in the environment, the sound box cannot sound towards the user well; 2. sometimes, a reflection cone is arranged in the sound box, but the reflection cone can only disperse sound, but when the number of users in the environment is small, the effect of the reflection cone is poor.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a smart speaker and a control method thereof, so as to solve the problems that the existing smart speaker has poor directivity, is easy to cause unnecessary noise interference, and affects the user experience effect.
The invention provides an intelligent sound box which comprises a base, a shell, a loudspeaker array, a microphone array and a processing unit, wherein the shell is movably connected with the base; wherein, regulating components which are regularly distributed are arranged among the loudspeaker arrays; the microphone array is used for collecting voice signals in the environment and transmitting the voice signals to the processing unit; the processing unit is used for processing signals of the voice signals, controlling the shell to drive the loudspeaker array to rotate to a sound source position based on the signal processing result, and correspondingly adjusting the direction of the adjusting assembly according to the number of the sound sources; the loudspeaker array is used for forming an outward opening or inward convergence shape through the adjusting component and sending sound source signals to the sound source.
In addition, the optional technical scheme is that a rotating shaft and a first driving wheel fixed on the rotating shaft are arranged in the base; the inner surface of the shell is provided with gear teeth meshed with the gear, and the gear drives the shell to rotate through the gear teeth.
In addition, the optional technical proposal is that the device also comprises a motor connected with the rotating shaft; the motor is connected with the processing unit, and the rotation direction and the rotation angle of the motor are controlled through the processing unit.
In addition, an optional technical solution is that the adjusting assemblies are provided with at least two groups around the speaker array, and each group of adjusting assemblies comprises at least two adjusting baffles arranged in parallel; the movement directions of the adjusting baffles in the two adjacent groups of adjusting assemblies are opposite, and the adjusting baffles are symmetrically distributed around the center line of the two adjacent groups of adjusting assemblies.
In addition, the optional technical scheme is that all the adjusting baffles positioned in the same group of adjusting components are movably fixed on the shell through the same driving structure; the driving structure comprises a fixed plate, a moving plate and a second driving wheel, wherein the moving plate is arranged in the shell and is parallel to the fixed plate; a first fixed point and a second fixed point are arranged on the adjusting baffle, one end of the adjusting baffle is positioned in the shell, the other end of the adjusting baffle penetrates out of the shell through the fixed plate, the first fixed point is rotatably connected with the movable plate through a first rotating shaft, and the second fixed point is rotatably connected with the fixed plate through a second rotating shaft; the second driving wheel is used for driving the moving plate to move, and the angle of the adjusting baffle is adjusted through the first rotating shaft and the second rotating shaft.
In addition, the selectable technical scheme is that linear gear teeth meshed with the second driving wheel are arranged on the moving plate; the movable plate comprises a fixed part, a driving part and a connecting part for connecting the fixed part and the driving part, and the fixed part and the driving part are arranged in parallel; the processing unit is also used for controlling the driving motor to drive the second driving wheel to move and driving the linear gear teeth to move through the second driving wheel.
In addition, an alternative solution is that the fixing plate is fixed on the inner side wall of the shell through a connecting piece.
In addition, the selectable technical scheme is that the loudspeakers of each column of the loudspeaker array are connected in series through the same adjusting shaft, and an angle adjusting gear is arranged at the end part of the adjusting shaft; the angle adjusting gear is used for driving the loudspeakers in the corresponding row to rotate through the adjusting shaft.
In addition, an optional technical scheme is that a limiting groove matched with a loudspeaker in the loudspeaker array is arranged on the fixing plate, and the loudspeaker is limited in the limiting groove; the end part of the adjusting shaft is provided with an interval adjusting gear which is used for driving the loudspeakers to move in the limiting grooves so as to adjust the horizontal interval between the loudspeakers.
According to another aspect of the present invention, a smart speaker control method is provided for controlling the smart speaker, and the method includes: acquiring voice signals in an environment through a microphone array, and judging whether the voice signals contain preset awakening words or not; when the voice signal contains the awakening words, determining the position and the number of the sound sources based on the voice signal; adjusting the angle of the loudspeaker array based on the position of the sound source, and adjusting the angle of the corresponding adjusting component based on the number of the sound sources; the source signal is transmitted to the sound source through the speaker array.
By utilizing the intelligent sound box and the control method thereof, the adjusting components which are regularly distributed are arranged between the loudspeaker arrays, the voice signals in the environment are collected through the microphone arrays and are transmitted to the processing unit, so that the processing unit can process the voice signals, the shell is controlled to drive the loudspeaker arrays to rotate to the position of a sound source based on the result of signal processing, the directions of the adjusting components are correspondingly adjusted according to the number of the sound sources, the positions of the loudspeaker arrays can be flexibly adjusted according to the position of the sound source, the directions of the adjusting components are adjusted in a matched manner, better directional transmission of sound is realized, the influence of the sound on other directions is reduced, and the user experience effect is better.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Further, the present invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a side cross-sectional view of a smart sound box according to an embodiment of the present invention;
fig. 2 is a top view of a partial structure of a smart sound box according to an embodiment of the present invention;
fig. 3 is a front view of a partial structure of the smart sound box according to the embodiment of the present invention;
fig. 4 is a perspective view of a partial structure of the smart sound box according to the embodiment of the present invention;
FIG. 5 is a flowchart of a smart speaker control method according to an embodiment of the present invention;
fig. 6 is a detailed flowchart of a smart sound box control method according to an embodiment of the present invention.
Wherein the reference numerals include: the loudspeaker comprises a shell 1, an adjusting component 2, a loudspeaker array 3, a base 4, a second driving wheel 7, a moving plate 8, a fixing plate 9, a limiting groove 91, an angle adjusting gear 10, an angle adjusting gear 11, an angle adjusting gear 12, an angle adjusting gear 13 and a spacing adjusting gear 14.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In order to describe the smart speaker and the control method thereof in detail, embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 illustrates a side sectional structure of a smart sound box according to an embodiment of the present invention; fig. 2 and fig. 4 respectively show a partial schematic structure of a smart sound box according to an embodiment of the present invention from different angles.
As shown together with fig. 1 to fig. 4, the smart speaker according to the embodiment of the present invention includes a base 4, a housing 1 movably connected to the base 4, a speaker array 3 disposed in the housing 1, a microphone array, and a processing unit; wherein, the regulating components 2 which are regularly distributed are arranged between the loudspeaker arrays 3; the microphone array can be arranged on the upper end face or the side face of the shell 1 and is used for collecting voice signals in the environment and transmitting the voice signals to the processing unit; the processing unit is used for carrying out signal processing to the speech signal to acquire the sound source position and the sound source quantity information corresponding to the speech signal, and control the casing 1 to drive the loudspeaker array 3 to rotate to the sound source position based on the result of signal processing (sound source position), and adjust the direction of adjusting component 2 according to the quantity correspondence of sound source, loudspeaker array 3 is used for treating after the position of loudspeaker array 3 and adjusting component 2 is confirmed, form the shape of outside opening or inside convergence through adjusting component 2, and send the sound source signal to the sound source, and then make the sound source signal have stronger directive property. Further, for the motion of casing 1 can drive speaker array 3 on it and carry out position adjustment, can also set up the pivot in base 4 and fix the epaxial gear in that changes, set up the first drive wheel with gear engaged with at the internal surface of casing 1, the rotation through the pivot can drive first drive wheel and rotate, and then through the meshing of first drive wheel and the teeth of a cogwheel, realize the rotatory effect of casing 1, and finally reach the position adjustment on the whole of speaker array 3, make speaker array global motion to the direction that the user was in.
In addition, the intelligent sound box of the embodiment of the invention can also comprise a driving device such as a motor connected with the rotating shaft, the motor is simultaneously connected with the processing unit, and the processing unit controls parameters such as the rotating direction and the rotating angle of the motor, so that the loudspeaker array 3 rotates to the direction facing the target speaker (sound source). It is understood that the driving device is not limited to the motor, and various types of driving devices such as an electric cylinder may be used.
In an embodiment of the present invention, the adjusting assemblies 2 are arranged in at least two groups around the speaker array 3, the adjusting assemblies 2 may be arranged in a left-right arrangement, an up-down arrangement, and a surrounding arrangement, and the optimal scheme may be arranged in two groups, the two groups of adjusting assemblies 2 are respectively arranged on the left and right sides of the speaker array 3, when a plurality of persons use the speaker array, the distribution of the plurality of persons may have a certain width in the horizontal direction, and thus may be arranged in a left-right distribution manner. In addition, adjusting part 2 still can set up three groups, and three adjusting part of group are evenly distributed about the center of intelligent audio amplifier.
In addition, each set of adjusting assemblies 2 comprises at least two adjusting baffles arranged parallel to each other; the movement directions of the adjusting baffles in two adjacent groups of adjusting assemblies 2 are opposite and are symmetrically distributed about the center line of two adjacent groups of adjusting assemblies 2. The direction to the adjusting flap in two adjacent adjusting part 2 is adjusted simultaneously, and make the direction cooperation of two sets of adjusting flap form outside opening or the shape of convergence in mutually, reach the adjustment to the propagation direction of sound source signal, when the user is a man, can collect (as shown in fig. 2) two sets of adjusting flap's opening adduction, the formation more has directive propagation, when the user is many people, can open two sets of adjusting flap's opening, form bigger propagation angle (as shown in fig. 3), satisfy the scene that many people used. Specifically, all the adjusting baffles positioned in the same group of adjusting assemblies 2 are movably fixed on the shell 1 through the same driving structure; the driving structure comprises a fixed plate 9 fixed on the inner side wall of the shell, a moving plate 8 arranged in the shell 1 and parallel to the fixed plate 9, and a second driving wheel 7 for driving the moving plate 8 to move; a first fixed point and a second fixed point are arranged on the adjusting baffle, one end of the adjusting baffle is positioned in the shell 1, the other end of the adjusting baffle penetrates out of the shell 1 through a fixed plate 9, the first fixed point is movably (or rotatably) connected with a movable plate 8 through a first rotating shaft, and the second fixed point is movably (or rotatably) connected with the fixed plate 9 through a second rotating shaft; the second driving wheel 7 is used for driving the moving plate 8 to move, and the angle of the adjusting baffle plate is adjusted through the first rotating shaft and the second rotating shaft.
It should be noted that, in order to enable the directions of the adjusting baffles in two adjacent adjusting assemblies 2 to move simultaneously and in opposite directions, the moving plates 8 in two groups of adjusting assemblies 2 may be driven by the same second driving wheel 7, for example, the moving plates 8 may be configured to include a fixing portion, a driving portion, and a connecting portion connecting the fixing portion and the driving portion, the fixing portion and the driving portion are arranged in parallel, the fixing portion is connected to the first fixing point of the adjusting baffle through a first rotating shaft, the driving portion may be configured to adopt a linear gear tooth structure that is arranged on the moving plate 8 and engaged with the second driving wheel 7, different linear gear teeth in two adjacent adjusting assemblies 2 are respectively arranged on two sides of the same second driving wheel 7, and the two linear gear teeth are driven in opposite directions simultaneously by the same second driving wheel 7. Wherein, second drive wheel 7 can further be connected with processing unit, drives the motion of second drive wheel 7 through processing unit control driving motor, drives the removal of straight line teeth of a cogwheel through second drive wheel 7 to adjustable pivoted speed and distance isoparametric.
In addition, a central baffle perpendicular to the surface of the housing 1 may be disposed between the adjusting baffles in two adjacent adjusting assemblies 2, and the central baffle is used to enable the sound source signal to better propagate out. In addition, the adjusting baffle plate can be provided with a reflecting cone structure, and the adjustment of the propagation direction of the sound source signal and the sound effect can be realized by changing parameters such as the distance, the angle and the like between the reflecting cones.
In another embodiment of the present invention, the adjustment of the angle and the distance between the speakers in the speaker array can be realized, the rotation of the housing can realize coarse adjustment of the position of the speaker array, and the rotation of the speakers can further realize fine adjustment of the position, so that two-stage rotation adjustment is realized, and the position accuracy of the speakers is higher, and the acoustic effect is better. Wherein, the loudspeakers in each column of the loudspeaker array are connected in series through the same adjusting shaft, and the angle adjusting gear is arranged at the end of the adjusting shaft, for example, when the loudspeaker array comprises four columns of loudspeakers, four groups of angle adjusting gears can be arranged, including the angle adjusting gear 10, the angle adjusting gear 11, the angle adjusting gear 12 and the angle adjusting gear 13. Rotation through angle adjusting gear can drive the regulating spindle and set up and be in a row of speaker on the regulating spindle rotates, and then reaches the adjustment to the inclination of speaker.
In addition, can also set up the spacing groove 91 with each speaker looks adaptation in the speaker array on fixed plate 9, the speaker is spacing at the spacing groove 91 that corresponds, sets up interval adjusting gear 14 at the tip of regulating spindle through the connecting piece simultaneously, drives through interval adjusting gear 14 the connecting piece removes, can make the speaker of same row can carry out horizontal migration in the spacing groove 91 that corresponds, and then reach the effect of adjusting the horizontal interval between each speaker.
On the other hand, a limit module can be arranged on the fixing plate 9, the loudspeakers in the same row are limited in the same limit module, and when the inclination angle and the distance of the loudspeakers are adjusted, the limit module can be operated through corresponding gears, external drive and the like, and the above effects can be achieved.
It should be noted that the angle adjustment and the horizontal pitch adjustment of the speaker array may also be accomplished by other structural members or connectors, and the adjustment of the angle parameter and the horizontal pitch parameter may be implemented, and is not limited to the specific connection structure in the drawings.
In the intelligent sound box of the invention, the basic working principle of the directional loudspeaker array 3 can be that audible sound signals are modulated onto ultrasonic carrier signals and are emitted into the air by an ultrasonic transducer, when ultrasonic waves with different frequencies are transmitted in the air, the signals can generate interaction and self-demodulation due to the nonlinear acoustic effect of the air, and then audible sound waves with the frequency being the sum (sum frequency) and the difference (difference frequency) of the original ultrasonic frequencies are generated, so that the directional transmission of the sound can be realized by means of the strong directivity of the ultrasonic waves, and meanwhile, the influence on other directions is also reduced. It is to be understood that the speaker array 3 may be configured by various types of speakers in general, and the type of the speaker is not particularly limited.
In another embodiment of the present invention, the microphone array may be uniformly disposed on the upper end surface or the side surface of the housing 1, and the number and the positions of the microphones in the microphone array may be set and adjusted according to the size and the requirement of the product.
In addition, the number of the speakers in the speaker array 3 can be set and adjusted according to the size and requirements of the product, and the adjusting baffles can be arranged between two adjacent rows of speakers, that is, the adjusting baffles and the rows in the speaker array 3 are distributed in a cross manner.
Correspondingly to the intelligent sound box, the invention also provides an intelligent sound box control method.
Specifically, fig. 5 shows a flow of the smart sound box control method according to the embodiment of the present invention.
As shown in fig. 5, in an embodiment of the present invention, a method for controlling an intelligent sound box mainly includes the following steps:
s110: acquiring voice signals in an environment through a microphone array, and judging whether the voice signals contain preset awakening words or not;
s120: when the voice signals contain awakening words, determining the positions and the number of sound sources based on the voice signals;
s130: adjusting the angle of the loudspeaker array based on the position of the sound source, and adjusting the angle of the corresponding adjusting component based on the number of the sound sources;
s140: the source signal is transmitted to the sound source through the speaker array.
Wherein, the process of judging whether the voice signal contains the preset awakening word comprises the following steps: carrying out voice activity detection on a voice signal, determining the initial position of the voice signal, and separating target voice and non-target voice; wherein the non-target speech comprises silence and noise; and comparing the target voice with the awakening word to determine whether the voice signal contains the awakening word.
In addition, the process of determining the position and the number of sound sources based on the voice signal includes: the method comprises the steps of carrying out voice activity detection in a preset angle range of a sound source direction through a microphone array, and determining the positions and the number of sound sources based on various methods such as a beam forming algorithm, a TDOA (time difference of arrival) or a spectrum estimation method and the like.
Further, the process of adjusting the angle of the corresponding adjustment assembly based on the number of sound sources includes: when the number of the sound sources is one person or two persons, the adjusting assembly is controlled to retract towards the direction of the sound sources; when the number of the sound sources is larger than two persons, the adjusting assembly is controlled to expand outwards towards the direction of the sound sources.
As a specific example, fig. 6 shows a detailed schematic flow of the smart sound box control method implemented according to the present invention.
As shown in fig. 6, in this embodiment, the smart sound box control method includes:
1. when voice is input around the intelligent sound box, the microphone array can detect the voice signal in real time, identify the voice signal and judge whether a wake-up word exists in the voice signal;
2. when the voice signal has the awakening word, the intelligent sound box enters a working state, and positioning and directional pickup of subsequent voice are carried out on the speaker according to the instruction of the speaker.
3. After the voice signals are identified and positioned, the loudspeaker array is rotated to the direction of the speaker, the number of the user is judged, the number of the user can be determined, or the user can be subjected to default operation directly according to the judgment result.
For example, the smart speaker may confirm the number of recognized users and the target speaker, ask the user whether the number of recognized users is the number of recognized users, and if so, continue to perform the next action; if not, the target speaker is confirmed, and whether the target speaker is a single person, two persons or more persons is judged.
4. When the speaker performs voice interaction, the intelligent sound box can judge the current environment, judge whether a user is a single person, two persons or a plurality of persons, perform voice activity detection in an angle range of 45 degrees in the direction of a target speaker through the microphone array in the judging process, and perform recognition by utilizing algorithms such as beam forming and the like.
5. The adjusting baffle is adjusted according to the number of users, and when the users are single or two, the adjusting baffle can be adjusted towards the middle, so that the sound field has stronger directivity, and the influence on other directions is reduced; when the users are multiple persons, the adjusting baffle can be adjusted towards two sides, so that the sound field is wider.
6. Finally, the sound source is played through the loudspeaker array, and the target sound source can be played according to the instruction of the target speaker or the control of other equipment and the like.
According to the intelligent sound box and the control method thereof provided by the invention, a user can be positioned and identified through the microphone array, and then the directivity of the speaker array is adjusted in a matching manner through various modes such as rotating the speaker array, adjusting the adjusting baffle, adjusting the inclination angle of the speakers, adjusting the distance between the speakers and the like, so that the sound box can achieve better directivity and reduce the influence on other directions.
The smart speaker and the control method thereof according to the present invention are described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications can be made to the smart sound box and the control method thereof without departing from the scope of the present invention. Accordingly, the scope of the invention should be determined from the content of the appended claims.
Claims (9)
1. An intelligent sound box is characterized by comprising a base, a shell, a loudspeaker array, a microphone array and a processing unit, wherein the shell is movably connected with the base; wherein the content of the first and second substances,
adjusting components which are regularly distributed are arranged among the loudspeaker arrays;
the microphone array is used for collecting voice signals in the environment and transmitting the voice signals to the processing unit;
the processing unit is used for processing the voice signals, controlling the shell to drive the loudspeaker array to rotate to a sound source position based on the signal processing result, and correspondingly adjusting the direction of the adjusting component according to the number of the sound sources;
the adjusting assemblies are arranged in at least two groups around the loudspeaker array, and each group of adjusting assemblies comprises at least two adjusting baffles which are arranged in parallel; wherein the content of the first and second substances,
the movement directions of the adjusting baffles in the two adjacent groups of adjusting assemblies are opposite, the adjusting baffles are symmetrically distributed about the center line of the two adjacent groups of adjusting assemblies, and the adjusting baffles in the two adjacent groups of adjusting assemblies are adjusted simultaneously through a driving structure; the loudspeaker array is used for forming an outward opening or inward convergence shape through the adjusting component and sending sound source signals to the sound source.
2. The smart sound box of claim 1,
a rotating shaft and a gear fixed on the rotating shaft are arranged in the base;
the inner surface of the shell is provided with a first driving wheel meshed with the gear, and the gear drives the shell to rotate through the first driving wheel.
3. The smart sound box of claim 2, further comprising a motor connected to the shaft; wherein the content of the first and second substances,
the motor is connected with the processing unit, and the rotation direction and the rotation angle of the motor are controlled through the processing unit.
4. The intelligent sound box according to claim 1, wherein all the adjustment baffles in the same set of adjustment assemblies are movably fixed to the housing by the same driving structure; wherein, the first and the second end of the pipe are connected with each other,
the driving structure comprises a fixed plate, a moving plate and a second driving wheel, the moving plate is arranged in the shell and is parallel to the fixed plate, and the second driving wheel drives the moving plate to move;
a first fixed point and a second fixed point are arranged on the adjusting baffle, one end of the adjusting baffle is positioned in the shell, the other end of the adjusting baffle penetrates out of the shell through the fixed plate, the first fixed point is rotatably connected with the movable plate through a first rotating shaft, and the second fixed point is rotatably connected with the fixed plate through a second rotating shaft;
the second driving wheel is used for driving the moving plate to move, and the angle of the adjusting baffle is adjusted through the first rotating shaft and the second rotating shaft.
5. The smart sound box of claim 4,
linear gear teeth meshed with the second driving wheel are arranged on the moving plate;
the movable plate comprises a fixed part, a driving part and a connecting part for connecting the fixed part and the driving part, and the fixed part and the driving part are arranged in parallel;
the processing unit is also used for controlling a driving motor to drive the second driving wheel to move, and the linear gear teeth are driven to move through the second driving wheel.
6. The smart sound box of claim 4,
the fixed plate is fixed on the inner side wall of the shell through a connecting piece.
7. The smart sound box of claim 4,
the loudspeakers in each row of the loudspeaker array are connected in series through the same adjusting shaft, and an angle adjusting gear is arranged at the end part of the adjusting shaft;
the angle adjusting gear is used for driving the loudspeakers in the corresponding row to rotate through the adjusting shaft.
8. The smart sound box of claim 7,
a limiting groove matched with the loudspeaker in the loudspeaker array is formed in the fixing plate, and the loudspeaker is limited in the limiting groove;
the end part of the adjusting shaft is provided with a spacing adjusting gear which is used for driving the loudspeakers to move in the limiting grooves so as to adjust the horizontal spacing between the loudspeakers.
9. A smart speaker control method for controlling a smart speaker according to any one of claims 1 to 8, the method comprising:
acquiring voice signals in an environment through a microphone array, and judging whether the voice signals contain preset awakening words or not;
when the voice signal contains the awakening words, determining the position and the number of sound sources based on the voice signal;
adjusting the angle of the loudspeaker array based on the position of the sound source, and adjusting the angle of the corresponding adjusting component based on the number of the sound sources;
and sending sound source signals to the sound source through the loudspeaker array.
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