CN110379422B - Offline far-field voice control system, control method and device - Google Patents
Offline far-field voice control system, control method and device Download PDFInfo
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- CN110379422B CN110379422B CN201910644412.1A CN201910644412A CN110379422B CN 110379422 B CN110379422 B CN 110379422B CN 201910644412 A CN201910644412 A CN 201910644412A CN 110379422 B CN110379422 B CN 110379422B
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
- H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
- H04N21/42222—Additional components integrated in the remote control device, e.g. timer, speaker, sensors for detecting position, direction or movement of the remote control, microphone or battery charging device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses an offline far-field voice system, a control method and equipment. The voice acquisition module is used for acquiring the voice of the user to obtain corresponding voice data; the voice recognition module judges whether voice data exist in a preset voice library or not; when voice data exist in a preset voice library, a compiling and compressing module compiles and compresses the voice data to obtain an operation instruction; and the control chip controls the television to realize corresponding operation according to the operation instruction. Under the condition that a traditional television has no operating system and is not networked, the television is controlled by collecting and identifying the voice of a user, the user can realize interaction with the television by only sending a voice instruction without depending on a remote controller, the personalized requirements of the television user are met, and the television is more intelligent.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to an offline far-field voice control system, control method and equipment.
Background
With the development and popularization of digital television technology, the television has become an entertainment center of a family, and the requirements of television users on the intellectualization and personalization of the television are higher and higher.
At present, for a traditional television without an operating system and a network function, a user generally uses a remote controller to control the television so as to enable the television to perform corresponding actions, such as television startup, channel increase, mute and other related operations.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an offline far-field voice control system, a control method and equipment, and aims to solve the technical problem that inconvenience is brought to a user by using a remote controller to control a television under the condition that no network exists in the prior art.
In order to achieve the above object, the present invention provides an offline far-field speech control system, which includes a speech acquisition module, a speech recognition module, a compiling and compressing module, and a control chip; wherein the content of the first and second substances,
the voice acquisition module is used for acquiring user voice to obtain corresponding voice data;
the voice recognition module is used for judging whether the voice data exists in a preset voice library or not;
the compiling and compressing module is used for compiling and compressing the voice data to obtain an operation instruction when the voice data exists in the preset voice library;
and the control chip is used for controlling the television to realize corresponding operation according to the operation instruction.
Preferably, the voice acquisition module further comprises a microphone, a first acquisition unit, a second acquisition unit and a filtering unit;
the first acquisition unit is connected with the microphone and used for acquiring voice through the microphone to obtain voice acquisition data and sending the voice acquisition data to the filtering unit;
the second acquisition unit is connected with a power amplifier of the television and used for acquiring power amplifier voice data and sending the power amplifier voice data to the filtering unit;
the filtering unit is connected with the voice recognition module and used for filtering power amplifier voice data in the voice acquisition data so as to take the filtered voice acquisition data as voice data corresponding to the voice of the user.
Preferably, the voice recognition device further comprises a triggering module connected with the voice acquisition module and used for detecting the voice sent by the user in real time and triggering the voice acquisition module to acquire the voice of the user when it is determined that the voice data corresponding to the voice sent by the user contains a preset activation instruction.
Preferably, there are at least two of the microphones.
Preferably, the television further comprises a display connected with the control chip and used for displaying the interface corresponding to the operation on the television.
The invention also provides an offline far-field voice control method, which comprises the following steps:
collecting user voice to obtain corresponding voice data;
judging whether the voice data exists in a preset voice library or not;
when the voice data exist in the preset voice library, compiling and compressing the voice data to obtain an operation instruction;
and controlling the television to realize corresponding operation according to the operation instruction.
Preferably, the step of controlling the television to implement the corresponding operation according to the operation instruction includes:
matching the operation instruction with a preset control instruction library;
and when the matching is successful, realizing corresponding operation according to the control instruction correspondingly matched with the operation instruction in the preset control instruction library.
Preferably, the step of matching the operation instruction with a preset control instruction library includes:
performing character string similarity matching on the operation instruction and a control instruction in the preset control instruction library;
and when the similarity of the character strings of the operation instruction and the control instruction is within a first preset range, judging that the matching is successful.
Preferably, the step of acquiring the user voice and obtaining the corresponding voice data includes:
the method comprises the steps of detecting sound emitted by a user in real time, and collecting user voice when it is determined that sound data corresponding to the sound emitted by the user comprises a preset activation instruction, so as to obtain corresponding voice data.
The invention also provides an offline far-field voice control device, wherein the electronic device comprises the offline far-field voice control system or the offline far-field voice control device applies the offline far-field voice control method.
The voice acquisition module is used for acquiring the voice of the user to obtain corresponding voice data; the voice recognition module judges whether voice data exist in a preset voice library or not; when voice data exist in a preset voice library, a compiling and compressing module compiles and compresses the voice data to obtain an operation instruction; and the control chip controls the television to realize corresponding operation according to the operation instruction. Under the condition that a traditional television has no operating system and is not networked, the television is controlled by collecting and identifying the voice of a user, the user can realize interaction with the television by only sending a voice instruction without depending on a remote controller, the personalized requirements of the television user are met, and the television is more intelligent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a functional block diagram of an embodiment of an offline far-field speech system according to the present invention;
FIG. 2 is a schematic diagram of an embodiment of an offline far-field speech system according to the present invention;
FIG. 3 is a flowchart of an offline far-field speech method according to an embodiment of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, and the like under a certain posture (as shown in the drawing), and if the certain posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an offline far-field voice control system.
Referring to fig. 1, in an embodiment, the offline far-field speech control system includes a speech acquisition module 100, a speech recognition module 200, a compiling and compressing module 300, and a control chip 400; the voice acquisition module 100 is configured to acquire a user voice and obtain corresponding voice data; the voice recognition module 200 is configured to determine whether the voice data exists in a preset voice library; the compiling and compressing module 300 is configured to, when the voice data exists in the preset voice library, compile and compress the voice data to obtain an operation instruction; and the control chip 400 is configured to control the television to implement corresponding operations according to the operation instruction.
It should be understood that, a traditional television without an operating system and without a network function can only be controlled by a remote controller, and the function of controlling the television by voice can be realized without connecting to the internet in the embodiment, so that the constraint that a television user uses the remote controller to operate the television for a long time is released, and the experience and the technological sense of the user are enhanced.
It should be noted that the voice acquisition module 100 is connected to the voice recognition module 200, the voice recognition module 200 is connected to the compiling and compressing module 300, the compiling and compressing module 300 is connected to the control chip 400 through a serial port, an operation instruction is transmitted to the control chip 400 of the television, and the television performs a corresponding operation after receiving the operation instruction, so that the user can perfectly control the television through voice.
In a specific implementation, the off-line far-field voice control system is powered by a +5V _ Standby internal power supply of the television, and in a power-on state of the television, the output of the +5V _ Standby is stable no matter whether the television is started or not, so that the off-line far-field voice control system can normally operate even if the television is in a Standby state, and can respond to voice control of a user.
Certainly, under the condition that the traditional television without an operating system is not networked, whether voice data exists in a preset voice library or not is judged in a database comparison mode, when the voice data exists in the preset voice library, a compiling and compressing module compiles and compresses the voice data to obtain an operating instruction, the operating instruction is transmitted to a control module of the television in a serial port RX/TX mode, and the control module automatically analyzes and compares the operating instruction to enable the television to make corresponding actions, such as television startup, channel increase, mute and other related operations, so that the purpose of far-field voice control of a user is achieved. The preset voice library may be set as shown in the following table:
in the embodiment, the voice of the user is collected through the voice collecting module to obtain corresponding voice data; the voice recognition module judges whether voice data exist in a preset voice library or not; when voice data exist in a preset voice library, a compiling and compressing module compiles and compresses the voice data to obtain an operation instruction; and the control chip controls the television to realize corresponding operation according to the operation instruction. Under the condition that a traditional television has no operating system and is not networked, the television is controlled by collecting and identifying the voice of a user, the user can realize interaction with the television by only sending a voice instruction without depending on a remote controller, the personalized requirements of the television user are met, and the television is more intelligent.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of an offline far-field speech system.
In this embodiment, the voice collecting module 100 further includes a microphone 110, a first collecting unit 120, a second collecting unit 130, and a filtering unit 140; the first collecting unit 120 is connected to the microphone 110, and is configured to collect voice through the microphone 110 to obtain voice collecting data, and send the voice collecting data to the filtering unit 140; the second acquisition unit 130 is connected with a power amplifier of the television, and is configured to perform recovery on power amplifier voice data and send the power amplifier voice data to the filtering unit 140; the filtering unit 140 is connected to the voice recognition module 200, and is configured to filter power amplifier voice data in the voice collected data, so that the filtered voice collected data is used as voice data corresponding to the voice of the user.
It should be noted that the voice acquisition data includes user voice and power amplifier voice data. Because the environment noise is complex when the television is in a playing state, in order to improve the accurate recognition of the voice control instruction of the television and filter the power amplification sound sent by the power amplifier of the television, a back-sampling function is specially designed, and the audio signal of the television is fed back to the voice acquisition module 100, so that the power amplification sound sent by the television is recognized, and the voice of a user is accurately recognized.
It is easy to understand that, since the microphones 110 are used to collect the user voices, in order to further improve the user experience, improve the voice signal processing quality and the voice recognition rate in the real environment, and enhance the accuracy of the user voice recognition, a plurality of microphones may be used to collect the user voices in different directions. In the present embodiment, the microphones 110 are preferably at least two.
Further, the offline far-field speech control system further includes a triggering module 500, connected to the speech acquisition module 100, and configured to detect the sound emitted by the user in real time, and trigger the speech acquisition module 100 to acquire the user speech when it is determined that the sound data corresponding to the sound emitted by the user includes a preset activation instruction.
It should be understood that, in order to prevent the misoperation, a preset activation instruction library is stored in the trigger module 500, the voice acquisition module 100 can be activated to continuously acquire the user voice within a preset time only when a preset activation password exists in the sound data corresponding to the sound emitted by the user, and when the user voice is not acquired within the preset time, the off-line far-field voice control system enters a sleep state, and can be activated again only when the activation password is received.
Further, the offline far-field speech control system further includes a display 600 connected to the control chip 400, for displaying an interface corresponding to the operation on the television.
It can be understood that the display 600 is a display of a television, and is used for displaying an interface corresponding to an operation, for example, when the collected user voice is "open a menu", a menu interface is displayed on the display.
This implementation is through the concrete design of pronunciation collection module, carries out back mining and filtering to the power amplifier sound of TV with itself to collect the user's pronunciation of a plurality of directions through a plurality of microphones, realized the collection to real user's pronunciation, and improved the degree of recognition to user's pronunciation.
Referring to fig. 3, fig. 3 is a flowchart of an embodiment of an offline far-field speech method based on an offline far-field speech system.
In this embodiment, the offline far-field speech method includes the following steps:
s10: collecting user voice to obtain corresponding voice data;
it is easily understood that, this embodiment collects the user's pronunciation of equidirectional through a plurality of microphones, has further promoted user experience and has felt, has improved speech signal processing quality and speech recognition rate under the real environment, reinforcing user speech recognition's degree of accuracy.
In a specific implementation, before the voice of the user is collected, the voice sent by the user needs to be detected in real time, and the voice of the user is collected only when it is determined that the voice data corresponding to the voice sent by the user contains a preset activation instruction.
It should be understood that, in order to prevent misoperation, a preset activation instruction library is stored in the trigger module, the voice acquisition module can be activated to continuously acquire the user voice within a preset time only when a preset activation password exists in the voice data corresponding to the voice sent by the user, and when the user voice is not acquired within the preset time, the offline far-field voice control system enters a dormant state and can be activated again only when the activation password is received.
S20: judging whether the voice data exists in a preset voice library or not;
it should be noted that, in this embodiment, there are various methods for determining whether the voice data exists in the preset voice library, for example, performing word vector similarity matching or character string similarity matching between the voice data and the data in the preset voice library. The preset voice library may be set up as follows:
s30: when the voice data exist in the preset voice library, compiling and compressing the voice data to obtain an operation instruction;
it is easy to understand that, when voice data exists in the preset voice library, the compiling and compressing module compiles and compresses the voice data to obtain an operation instruction, and transmits the operation instruction to the control module of the television through the serial port RX/TX.
S40: and controlling the television to realize corresponding operation according to the operation instruction.
In specific implementation, the control module matches the operation instruction with a preset control instruction library, and when the matching is successful, corresponding operations, such as television startup, channel increase, mute and other related operations, are implemented according to the control instruction correspondingly matched with the operation instruction in the preset control instruction library, so as to achieve the purpose of far-field voice control of the user.
In this embodiment, a control instruction corresponding to the operation instruction may be obtained in a manner of matching the similarity of the character strings. Specifically, performing character string similarity matching on the operation instruction and a control instruction in the preset control instruction library; and when the similarity of the character strings of the operation instruction and the control instruction is within a first preset range, judging that the matching is successful.
In the embodiment, the voice of the user is collected to obtain corresponding voice data; judging whether the voice data exist in the preset voice library or not; when the voice data exist in the preset voice library, compiling and compressing the voice data to obtain an operation instruction; and controlling the television to realize corresponding operation according to the operation instruction. Under the condition that a traditional television has no operating system and is not networked, the television is controlled by collecting and identifying the voice of a user, the user can realize interaction with the television by only sending a voice instruction without depending on a remote controller, the personalized requirements of the television user are met, and the television is more intelligent.
In addition, the invention also provides an offline far-field voice control device, which comprises the offline far-field voice control system or applies the offline far-field voice control method. It is easy to understand that the far-field speech control device under the line has at least the beneficial effects brought by the above embodiments.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An offline far-field voice control system is characterized by comprising a voice acquisition module, a voice recognition module, a compiling and compressing module and a control chip; wherein the content of the first and second substances,
the voice acquisition module is used for acquiring user voice to obtain corresponding voice data;
the voice recognition module is used for judging whether the voice data exists in a preset voice library or not, wherein word vector similarity matching is carried out on the voice data and data in the preset voice library so as to determine whether the voice data exists in the voice library or not;
the compiling and compressing module is used for compiling and compressing the voice data to obtain an operation instruction when the voice data exists in the preset voice library;
the control chip is used for controlling the television to realize corresponding operation according to the operation instruction, wherein the operation instruction is matched with the control instruction in a preset control instruction library in the character string similarity, if the character string similarity of the operation instruction and the control instruction is within a first preset range, the matching is judged to be successful, and the corresponding operation is realized according to the control instruction correspondingly matched with the operation instruction in the preset control instruction library.
2. The offline far-field speech control system according to claim 1, wherein said speech acquisition module further comprises a microphone, a first acquisition unit, a second acquisition unit, and a filtering unit;
the first acquisition unit is connected with the microphone and used for acquiring voice through the microphone to obtain voice acquisition data and sending the voice acquisition data to the filtering unit;
the second acquisition unit is connected with a power amplifier of the television and used for acquiring power amplifier voice data and sending the power amplifier voice data to the filtering unit;
the filtering unit is connected with the voice recognition module and used for filtering power amplifier voice data in the voice acquisition data so as to take the filtered voice acquisition data as voice data corresponding to the voice of the user.
3. The offline far-field speech control system according to claim 2, further comprising a triggering module, connected to the speech acquisition module, for detecting the sound made by the user in real time, and triggering the speech acquisition module to acquire the user speech when it is determined that the sound data corresponding to the sound made by the user includes a preset activation instruction.
4. The offline far-field speech control system according to claim 2, wherein said microphones are at least two.
5. The offline far-field speech control system according to any one of claims 1 to 4, further comprising a display, connected to the control chip, for displaying an interface corresponding to the operation.
6. A far-field speech control method under line is characterized by comprising the following steps:
collecting user voice to obtain corresponding voice data;
judging whether the voice data exist in a preset voice library or not, wherein word vector similarity matching is carried out on the voice data and data in the preset voice library so as to determine whether the voice data exist in the voice library or not;
when the voice data exist in the preset voice library, compiling and compressing the voice data to obtain an operation instruction;
and controlling the television to realize corresponding operation according to the operation instruction, wherein the character string similarity matching is carried out on the operation instruction and a control instruction in a preset control instruction library, if the character string similarity of the operation instruction and the control instruction is within a first preset range, the matching is judged to be successful, and the corresponding operation is realized according to the control instruction correspondingly matched with the operation instruction in the preset control instruction library.
7. The offline far-field speech control method according to claim 6, wherein said step of collecting user speech and obtaining corresponding speech data comprises:
the method comprises the steps of detecting the sound emitted by a user in real time, and collecting the voice of the user when the fact that the voice data corresponding to the sound emitted by the user comprises a preset activation instruction is determined, so that the corresponding voice data are obtained.
8. An offline far-field speech control device, characterized in that the offline far-field speech control device comprises the offline far-field speech control system according to any one of claims 1-5, or the offline far-field speech control device applies the offline far-field speech control method according to claim 6 or 7.
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| CN201910644412.1A CN110379422B (en) | 2019-07-16 | 2019-07-16 | Offline far-field voice control system, control method and device |
| PCT/CN2019/130505 WO2021008095A1 (en) | 2019-07-16 | 2019-12-31 | Offline far field voice control system, control method, and device |
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| CN110379422B (en) * | 2019-07-16 | 2022-05-20 | 深圳创维－Rgb电子有限公司 | Offline far-field voice control system, control method and device |
| CN111679594A (en) * | 2020-06-24 | 2020-09-18 | 四川长虹电器股份有限公司 | Far-field voice switch control method and system of visual intelligent product |
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| CN101902587A (en) * | 2009-06-01 | 2010-12-01 | 沈阳同方多媒体科技有限公司 | Voice-based television control system |
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| CN101211504A (en) * | 2006-12-31 | 2008-07-02 | 康佳集团股份有限公司 | Method, system and apparatus for remote control for TV through voice |
| JP5695447B2 (en) * | 2011-03-01 | 2015-04-08 | 株式会社東芝 | Television apparatus and remote control apparatus |
| US9443516B2 (en) * | 2014-01-09 | 2016-09-13 | Honeywell International Inc. | Far-field speech recognition systems and methods |
| CN105869636A (en) * | 2016-03-29 | 2016-08-17 | 上海斐讯数据通信技术有限公司 | Speech recognition apparatus and method thereof, smart television set and control method thereof |
| CN109788398A (en) * | 2017-11-10 | 2019-05-21 | 阿里巴巴集团控股有限公司 | Sound pick up equipment for far field voice |
| CN110379422B (en) * | 2019-07-16 | 2022-05-20 | 深圳创维－Rgb电子有限公司 | Offline far-field voice control system, control method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101902587A (en) * | 2009-06-01 | 2010-12-01 | 沈阳同方多媒体科技有限公司 | Voice-based television control system |
| CN104216351A (en) * | 2014-02-10 | 2014-12-17 | 美的集团股份有限公司 | Household appliance voice control method and system |
| KR20180111310A (en) * | 2017-03-31 | 2018-10-11 | 엘지전자 주식회사 | Home appliance, voice recognition module and home appliance system |
| CN107566874A (en) * | 2017-09-22 | 2018-01-09 | 百度在线网络技术（北京）有限公司 | Far field speech control system based on television equipment |
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| WO2021008095A1 (en) | 2021-01-21 |
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