WO2017071193A1 - 一种语音遥控器及其供电方法 - Google Patents

一种语音遥控器及其供电方法 Download PDF

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Publication number
WO2017071193A1
WO2017071193A1 PCT/CN2016/083317 CN2016083317W WO2017071193A1 WO 2017071193 A1 WO2017071193 A1 WO 2017071193A1 CN 2016083317 W CN2016083317 W CN 2016083317W WO 2017071193 A1 WO2017071193 A1 WO 2017071193A1
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WO
WIPO (PCT)
Prior art keywords
voice
remote controller
sound hole
noise
sound
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PCT/CN2016/083317
Other languages
English (en)
French (fr)
Inventor
柳勋
刘鹏鹏
刘志成
Original Assignee
青岛歌尔声学科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 青岛歌尔声学科技有限公司 filed Critical 青岛歌尔声学科技有限公司
Priority to KR1020187007600A priority Critical patent/KR101894210B1/ko
Priority to US15/767,581 priority patent/US10418031B2/en
Publication of WO2017071193A1 publication Critical patent/WO2017071193A1/zh

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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]
    • H04N21/42203—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] sound input device, e.g. microphone
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/20—Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0224—Processing in the time domain
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • G10L25/84—Detection of presence or absence of voice signals for discriminating voice from noise
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/001—Energy harvesting or scavenging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
    • 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]
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/15—Circuit arrangements or systems for wireless supply or distribution of electric power using ultrasonic waves
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • 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
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/342—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for microphones

Definitions

  • the present invention relates to the field of electronic devices, and in particular, to a voice remote controller and a power supply method thereof.
  • the remote control As an essential component of TV sets, the remote control has been seeking more user experience and technological innovations while increasing its functions in recent years. There are two main ways to supply power to the remote control:
  • the first type of power supply uses a non-rechargeable power supply method such as a button battery or a dry battery.
  • the disadvantage of this power supply method is mainly the waste of resources and environmental pollution caused by the used battery after the battery is exhausted.
  • the second power supply method utilizes a rechargeable battery power supply method of a rechargeable battery such as a lithium battery.
  • the inconvenience of this power supply method is that it requires frequent charging.
  • buttons are convenient for the user to use, but also increase the power consumption of the remote controller to a certain extent, increasing the frequency of replacing the battery or charging.
  • the invention provides a voice remote controller and a power supply method thereof, so as to solve the disadvantage that the existing voice remote controller needs to frequently replace the battery or frequently charge.
  • the present invention provides a voice remote controller comprising:
  • a noise collecting module which uses an array of sound holes to collect ambient noise around the voice remote controller
  • the sound and electricity conversion module converts the environmental noise collected by the noise collection module into an electrical signal
  • the energy storage module stores the electrical signal converted by the acoustic-electrical conversion module as electrical energy, and supplies power to the voice remote controller;
  • the sound hole array is disposed on the body of the voice remote controller, and each sound hole of the sound hole array is controlled by an electronic control switch, and the electronic control of each sound hole is controlled by the micro control module of the voice remote controller.
  • the opening or closing of the switch controls the range of ambient noise collected by the sound hole array.
  • the voice remote controller further includes:
  • the audio collection module uses the microphone sound hole to collect the voice signal of the user when the voice function of the voice remote controller is turned on;
  • the audio processing module captures a noise waveform from the ambient noise collected by the noise collection module, and the noise waveform is After the phase is opposite, the voice signal collected by the audio collection module is superimposed to filter out the environmental noise in the voice signal.
  • the audio processing module further calculates, when the voice function of the voice remote controller is turned on, the sound pressure of the ambient noise collected by the sound hole array and the environmental noise included in the voice signal collected by the microphone sound hole. Sound pressure and sent to the micro control module;
  • the micro control module when the voice function of the voice remote controller is turned off, controls an electronic control switch of all sound holes of the sound hole array to be turned on; when the voice function of the voice remote controller is turned on, according to the sound The sound pressure of the ambient noise collected by the aperture array and the sound pressure of the ambient noise contained in the voice signal collected by the microphone sound hole, and the electronic control switch that controls a part of the sound hole of the sound hole array is turned off.
  • the micro control module when the voice function of the voice remote controller is turned on, specifically turns on or off by controlling an electronic control switch of each sound hole of the sound hole array, so that the audio collection angle is included
  • the ambient noise component is one order of magnitude lower than the ambient noise in the noise acquisition angle.
  • the voice remote controller further includes:
  • a DC voltage regulator module converts the electrical signal converted by the acoustic-electrical conversion module into a DC signal and is regulated;
  • a boosting module that boosts a voltage of an electrical signal output by the DC voltage stabilizing module to a preset voltage value
  • the charging protection module is disposed between the boosting module and the energy storage module for preventing overcharging of the energy storage module.
  • the present invention provides a power supply method for a voice remote controller, including:
  • the electrical signal is stored as electrical energy to power the voice remote control
  • the sound hole array is disposed on the body of the voice remote controller, and each sound hole of the sound hole array is controlled by an electronic control switch, and is controlled by controlling the opening or closing of the electronic control switch of each sound hole.
  • the array of sound holes collects a range of ambient noise.
  • the method further includes:
  • the voice signal of the user is collected by using the microphone sound hole;
  • the waveform of the voice signal is superimposed to filter out ambient noise.
  • the method further includes: when the voice function of the voice remote controller is turned on, acquiring the sound pressure of the ambient noise collected by the sound hole array and the sound of the environmental noise included in the voice signal collected by the microphone sound hole Pressure
  • the collecting ambient noise of the voice remote controller by using the sound hole array includes:
  • the method further includes: when the voice function of the voice remote controller is turned on, controlling a part of the sound hole of the sound hole array to be closed, specifically:
  • the sound noise component included in the audio collection angle is compared with the ambient noise in the noise acquisition angle, and the sound pressure is one order of magnitude lower.
  • the storing the electrical signal as electrical energy, and supplying power to the voice remote controller includes:
  • a DC voltage regulator module to convert the electrical signal into a DC signal and voltage regulation, setting a boosting module to boost the regulated voltage to a preset voltage value, and setting a charging protection module to prevent the voice remote controller
  • the storage module is overcharged.
  • the embodiment of the invention uses the sound hole array to collect the ambient noise around the voice remote control, converts the environmental noise into electric energy as the energy of the voice remote control, avoids replacing the battery or frequently charging, is energy-saving and environmentally friendly, and is convenient to use, and has good application. Sex and application space; and when the voice function of the voice remote control is turned off, all the sound holes in the sound hole array are opened, and the collected environmental noise is all converted into electric energy, which greatly improves the energy utilization rate.
  • the environmental noise is separated from the user's voice signal, and the noise is used as an energy source for conversion and utilization thereof.
  • the inverse superposition of the speech signal can filter out the environmental noise in the speech signal, so that the speech signal can be better sampled and transmitted, and the adverse effect of the environmental noise on the voice remote controller is reduced.
  • FIG. 1 is a schematic structural diagram of a function module of a voice remote controller according to an embodiment of the present invention
  • FIG. 2 is a front elevational view of a voice remote controller according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a voice remote controller collecting angles of ambient noise and voice signals according to an embodiment of the present invention
  • FIG. 4 is a specific flowchart of a method for supplying power of a voice remote controller according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a function of a voice remote controller according to an embodiment of the present invention
  • FIG. 2 is a front view of a voice remote controller according to an embodiment of the present invention.
  • a voice remote controller provided by the present invention includes:
  • the noise collecting module 101 is configured to collect ambient noise around the voice remote controller by using the sound hole array 202;
  • the sound and electricity conversion module 102 is configured to convert the ambient noise collected by the noise collection module 101 into an electrical signal
  • the energy storage module 103 is configured to store the electrical signal converted by the acoustic-electrical conversion module 102 as electrical energy to supply power to the voice remote controller.
  • the sound hole array 202 is disposed on the body of the voice remote controller, and each sound hole of the sound hole array is controlled by an electronic control switch 203, and the electronic control switch of each sound hole is controlled by the micro control module of the voice remote controller. Turning on or off to control the range of ambient noise collected by the sound hole array 202.
  • the voice remote controller provided by the embodiment of the present invention adds a sound hole array 202 based on functions of a microphone (mic) sound hole, a universal button area, and the like of the existing voice remote controller, and each sound hole is made of one electric power.
  • the control switch 203 controls to adjust the acoustic cavity structure by adjusting the number of sound holes of the aperture array 202 to change the overall aperture size of the acoustic aperture array 202.
  • the sound hole array 202 is internally provided with a noise collecting module 101 and an acoustic-electrical conversion module 102.
  • the ambient noise sound energy collected by the noise collecting module 101 drives the cavity vibrating piece of the acoustic-electrical conversion module 102 to cause the piezoelectric film to output current, thereby performing Sound and electric conversion.
  • a sound hole array 202 is disposed on each of the front and back sides of the voice remote controller, and the sound hole array 202 is disposed on both sides of the voice remote controller, which can effectively prevent the voice remote controller from being placed in the front or back.
  • the sound hole array 202 is blocked, causing the acoustic-electrical conversion not to proceed.
  • the two acoustic aperture arrays 202 on the front and the back share an acoustic-electrical conversion module 102, which increases the efficiency of the product while improving efficiency and cost.
  • Each sound hole of the sound hole array 202 is controlled by an electronic control switch 203, and the micro control module 106 of the voice remote control adjusts the opening of the sound hole array 202 by controlling the opening or closing of the electronic control switch 203 of each sound hole.
  • the number of sound holes can adjust the acoustic cavity structure of the sound hole array 202, thereby adjusting the range and efficiency of the ambient noise collected by the voice remote controller.
  • the voice remote controller provided by the present invention further includes an audio collection module 104 and an audio processing module 105;
  • the audio collection module 104 is configured to collect the voice signal of the user by using the microphone sound hole 201 when the voice function of the voice remote controller is turned on;
  • the audio processing module 105 is configured to capture a noise waveform from the ambient noise collected by the noise collection module 101, and perform a superposition operation on the voice signal collected by the audio collection module 104 after the phase of the noise waveform is opposite to filter out the environmental noise in the voice signal. .
  • the ambient noise collected by the noise collection module 101 can be used as a source of energy for conversion, and a useful noise waveform can be captured therefrom, and the voice signal collected by the audio collection module 104 is inversely superimposed to filter out the voice.
  • the ambient noise in the signal enables better sampling and transmission of the user's voice signal.
  • the voice remote controller provided by the present invention further includes:
  • the DC voltage stabilizing module 107 is configured to convert the electrical signal converted by the acoustic-electrical conversion module 102 into a DC signal and stabilize the voltage signal;
  • the boosting module 108 is configured to boost the voltage of the electrical signal output by the DC voltage stabilizing module 107 to a preset voltage value
  • the charging protection module 109 is disposed between the boosting module 108 and the energy storage module 103 for preventing the energy storage module 103 from overcharging.
  • the ambient noise is collected by the sound hole array through the sound collecting module 101, and then converted into an electrical signal by the acoustic-electrical conversion module 102. After AC/DC conversion and voltage regulation, the voltage is boosted to 4.2V, and the battery is charged and discharged.
  • the protection circuit directly acts on the energy storage module 103 to charge the energy storage module 103 of the voice remote controller of the present invention at a time, and the charging protection module 109 can well prevent overshoot, and the energy conversion process at all times. In the middle, the high-energy state of the energy storage module 103 is maintained, and the number of times of charging is reduced.
  • the energy storage module 103 can use a rechargeable lithium battery, or other kinds of rechargeable batteries.
  • the voice remote control can communicate with a controlled device such as a television set based on infrared, Bluetooth, and 2.4G wireless transmission schemes.
  • FIG. 3 is a schematic diagram of a voice remote controller for collecting ambient noise and a voice signal according to an embodiment of the present invention.
  • the audio sound collection angle of the microphone sound hole 201 to the voice signal is ⁇
  • the noise collection angle of the sound hole array 202 for the environmental noise is ⁇ .
  • the audio acquisition angle ⁇ signal includes a larger component noise acquisition angle ⁇ value.
  • the micro control module 106 gradually adjusts the electronic control switch 203 of each sound hole in the sound hole array 202 by calculating the sound pressure level of the voice signal and the noise signal, so that the noise collection angle ⁇ changes.
  • the noise acquisition angle ⁇ component included in the speech signal acquired to the audio acquisition angle ⁇ is determined to be the optimal noise acquisition angle ⁇ when the noise acquisition source ⁇ is lower than the noise source of the noise acquisition angle ⁇ .
  • the upper side of the noise acquisition angle ⁇ is in a nearly parallel position with the lower side of the audio collection angle ⁇ , which can improve the frontal voice signal acquisition capability of the voice remote controller, and all the audio signals except the audio collection angle ⁇ are all absorbed as energy.
  • the acoustic energy is converted into electrical energy while being reduced in ambient noise, and stored in the energy storage module 103.
  • the noise signal collected by the noise acquisition angle ⁇ can capture the useful noise waveform before the acoustic-electrical conversion, and the noise waveform is processed in opposite phase, and then superimposed with the sound source signal under the audio acquisition angle ⁇ , which is better.
  • the ambient noise in the speech signal collected by the microphone sound hole is filtered out.
  • the micro control module 106 controls the electronic control switch 203 of all the sound holes of the sound hole array 202 to be turned on, converts all the received audio signals into electrical energy, stores them in the energy storage module 103, and increases The efficiency of energy conversion keeps the battery high.
  • the voice remote controller provided by the invention can be used for controlling a television set, and can also be used for controlling other electrical appliances such as a computer, a refrigerator, an air conditioner, and the like.
  • FIG. 4 is a specific flowchart of a method for supplying power of a voice remote controller according to an embodiment of the present invention.
  • a power supply method for a voice remote controller according to an embodiment of the present invention includes:
  • Step S401 Acquiring ambient noise around the voice remote controller by using the sound hole array.
  • Step S402 Determine whether the voice function of the voice remote controller is turned on. If the voice function of the voice remote controller is turned on, step S403 is performed; if the voice function of the voice remote controller is turned off, step S408 is performed.
  • Step S403 Acquire a voice signal of the user by using a microphone sound hole.
  • Step S404 Control a part of the sound holes of the sound hole array to be closed.
  • Step S405 Grab the noise waveform from the collected ambient noise.
  • Step S406 The phase of the noise waveform is reversed and the waveform of the voice signal is superimposed to filter out ambient noise in the voice signal.
  • Step S407 Send the audio signal after the audio processing to the controlled device.
  • Step S408 Control all the sound holes of the sound hole array to be opened.
  • Step S409 Convert the collected environmental noise into an electrical signal.
  • Step S410 storing the electrical signal as electrical energy to supply power to the voice remote controller.
  • the sound hole array is disposed on the body of the voice remote controller, and each sound hole of the sound hole array is controlled by an electronic control switch, and the micro control module of the voice remote controller controls the opening of the electronic control switch of each sound hole or Close to control the range of ambient noise collected by the sound hole array.
  • Step S404 when the voice function of the voice remote controller is turned on, the sound hole of the sound hole array is controlled to be closed, and the method includes:
  • the electronic control switch that controls part of the sound hole of the sound hole array is turned on or off, so that the ambient noise component contained in the audio acquisition angle is one order of magnitude lower than the ambient noise in the noise acquisition angle.
  • the method further includes:
  • the voice remote controller and the power supply method thereof provided by the present invention have the following beneficial effects compared with the prior art:
  • Acoustic aperture array is used to collect the ambient noise around the voice remote control, and the environmental noise is converted into electric energy as the energy of the voice remote control, avoiding the replacement of the battery or frequent charging, energy saving and environmental protection, convenient use, and good applicability and Application space.
  • the noise is separated from the user's voice signal, and the noise is used as an energy source for conversion.
  • the waveform is inversely superimposed on the voice signal to filter out the environmental noise in the voice signal, so that the voice signal can be better sampled and transmitted, and the environmental noise is reduced. Adverse effects on the voice remote.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

本发明公开了一种语音遥控器及其供电方法，语音遥控器包括：噪声采集模块，利用声孔阵列采集语音遥控器周边的环境噪声；声电转换模块，将噪声采集模块采集的环境噪声转化为电信号；储能模块，将声电转换模块转化得到的电信号作为电能存储，为语音遥控器供电。利用声孔阵列采集环境噪声，将其转化为电能作为工作能源，避免了更换电池或频繁充电；在语音遥控器的语音功能关闭时，将采集到的环境噪声全部转化为电能，提高了能源利用率；通过调节声孔阵列中打开的声孔数量，改变噪声采集角度，使环境噪声与用户的语音信号分离，将噪声波形反向叠加到语音信号可以滤除语音信号中的环境噪声，减少环境噪声对语音遥控器的不利影响。

Description

一种语音遥控器及其供电方法 技术领域
本发明涉及电子设备领域，特别涉及一种语音遥控器及其供电方法。
发明背景
遥控器作为电视机的必备组件，近些年在功能不断增加的同时，也在寻求更好的用户体验和技术革新。针对遥控器的供电方式，现市面上主要有两种方式：
第一种供电方式，利用纽扣电池、干电池等不可充电循环的供电方式，这种供电方式的弊端主要在于电池电量耗尽后废旧电池造成的资源浪费和环境污染。
第二种供电方式，利用锂电池等可充电电池的可充电循环的供电方式，这种供电方式的不便之处在于需要经常充电。
越来越多的智能电视遥控器配备了诸如语音模块等功能形式，这种语音遥控器可以通过语音识别功能识别常用的命令，用户不必每次控制电视机时在遥控器的按键区寻找需要的按键，方便了用户的使用，但是在一定程度上也增加了遥控器的功耗，增加了更换电池或充电的频率。
发明内容
本发明提供了一种语音遥控器及其供电方法，以解决现有语音遥控器需要经常更换电池或频繁充电的弊端。
依据本发明的一个方面，本发明提供了一种语音遥控器，包括：
噪声采集模块，利用声孔阵列采集所述语音遥控器周边的环境噪声；
声电转换模块，将所述噪声采集模块采集的环境噪声转化为电信号；
储能模块，将所述声电转换模块转化得到的电信号作为电能存储，为所述语音遥控器供电；
其中，所述声孔阵列设置在所述语音遥控器的本体上，声孔阵列的每个声孔都由一个电控开关控制，通过语音遥控器的微控制模块控制每个声孔的电控开关的开启或关闭来控制所述声孔阵列采集环境噪声的范围。
其中，所述语音遥控器还包括：
音频采集模块，在所述语音遥控器的语音功能开启时，利用麦克声孔采集用户的语音信号；
音频处理模块，从所述噪声采集模块采集的环境噪声中抓取噪声波形，将所述噪声波形 相位相反后与所述音频采集模块采集的语音信号进行叠加运算，以滤除语音信号中的环境噪声。
其中，所述音频处理模块，在所述语音遥控器的语音功能开启时，还计算所述声孔阵列采集的环境噪声的声压以及所述麦克声孔采集的语音信号中包含的环境噪声的声压，并发送给所述微控制模块；
所述微控制模块，在所述语音遥控器的语音功能关闭时，控制所述声孔阵列的全部声孔的电控开关打开；在所述语音遥控器的语音功能开启时，根据所述声孔阵列采集的环境噪声的声压以及所述麦克声孔采集的语音信号中包含的环境噪声的声压，控制所述声孔阵列的部分声孔的电控开关关闭。
其中，所述微控制模块，在所述语音遥控器的语音功能开启时，具体是通过控制所述声孔阵列的每个声孔的电控开关开启或关闭，使所述音频采集角度中包含的环境噪声分量与所述噪声采集角度中的环境噪声相比，声压低一个数量级。
其中，所述语音遥控器还包括：
直流稳压模块，将所述声电转换模块转化得到的电信号转化为直流信号并稳压；
升压模块，将所述直流稳压模块输出的电信号的电压提升到预先设定的电压值；
充电保护模块，设置在所述升压模块与所述储能模块之间，用于防止所述储能模块过充。
依据本发明的另一方面，本发明提供了一种语音遥控器的供电方法，包括：
利用声孔阵列采集所述语音遥控器周边的环境噪声；
将采集到的环境噪声转化为电信号；
将所述电信号作为电能存储，为所述语音遥控器供电；
其中，所述声孔阵列设置在所述语音遥控器的本体上，声孔阵列的每个声孔都由一个电控开关控制，通过控制每个声孔的电控开关的开启或关闭来控制所述声孔阵列采集环境噪声的范围。
其中，所述方法还包括：
在所述语音遥控器的语音功能开启时，利用麦克声孔采集用户的语音信号；
从采集的环境噪声中抓取噪声波形；
将所述噪声波形相位相反后与所述语音信号的波形进行叠加运算，以滤除环境噪声。
其中，所述方法还包括：在所述语音遥控器的语音功能开启时，获取所述声孔阵列采集的环境噪声的声压以及所述麦克声孔采集的语音信号中包含的环境噪声的声压；
其中，所述利用声孔阵列采集所述语音遥控器周边的环境噪声包括：
在所述语音遥控器的语音功能关闭时，控制所述声孔阵列的全部声孔打开；
在所述语音遥控器的语音功能开启时，控制所述声孔阵列的部分声孔关闭。
其中，所述方法还包括：所述在所述语音遥控器的语音功能开启时，控制所述声孔阵列的部分声孔关闭，具体为：
根据所述声孔阵列采集的环境噪声的声压以及所述麦克声孔采集的语音信号中包含的环境噪声的声压，控制所述声孔阵列的每个声孔的电控开关开启或关闭，使所述音频采集角度中包含的环境噪声分量与所述噪声采集角度中的环境噪声相比，声压低一个数量级。
其中，所述将所述电信号作为电能存储，为所述语音遥控器供电包括：
设置直流稳压模块将所述电信号转化为直流信号并稳压，设置升压模块将所述稳压后的电压提升到预先设定的电压值，以及设置充电保护模块防止所述语音遥控器的存储模块过充。
与现有技术相比，本发明实施例的有益效果是：
本发明实施例利用声孔阵列采集语音遥控器周边的环境噪声，将环境噪声转化为电能作为语音遥控器工作的能源，避免了更换电池或频繁充电，节能环保，方便使用，具有较好的适用性和应用空间；并且在语音遥控器的语音功能关闭时，打开声孔阵列中的全部声孔，将采集到的环境噪声全部转化为电能，大大提高了能源利用率。
在优选实施例中通过调节声孔阵列中打开的声孔数量，改变声孔阵列的腔体和噪声采集角度，使环境噪声与用户的语音信号分离，噪声作为能源进行转化利用，同时将其波形反向叠加到语音信号可以滤除语音信号中的环境噪声，使语音信号可以更好的进行采样和传输，减少环境噪声对语音遥控器的不利影响。
附图简要说明
图1为本发明实施例提供的语音遥控器的一种功能模块结构示意图；
图2为本发明实施例提供的语音遥控器的一种外观正面图；
图3为本发明实施例提供的语音遥控器对环境噪声和语音信号采集角度的示意图；
图4为本发明实施例提供的语音遥控器的供电方法的一具体流程图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
图1为本发明实施例提供的语音遥控器的一种功能模块结构示意图，图2为本发明实施例提供的语音遥控器的一种外观正面图。如图1、图2所示，本发明提供的一种语音遥控器，包括：
噪声采集模块101，用于利用声孔阵列202采集语音遥控器周边的环境噪声；
声电转换模块102，用于将噪声采集模块101采集的环境噪声转化为电信号；
储能模块103，用于将声电转换模块102转化得到的电信号作为电能存储，为语音遥控器供电。
其中，声孔阵列202设置在语音遥控器的本体上，声孔阵列的每个声孔都由一个电控开关203控制，通过语音遥控器的微控制模块控制每个声孔的电控开关的开启或关闭来控制声孔阵列202采集环境噪声的范围。
也即是说，本发明实施例提供的语音遥控器，基于现有的语音遥控器的麦克(mic)声孔、通用按键区等功能，增加一声孔阵列202，每个声孔都由一个电控开关203控制，通过调节开孔阵列202的声孔数量改变声孔阵列202的整体开孔大小，从而调整声腔结构。声孔阵列202内部设置噪声采集模块101和声电转换模块102，噪声采集模块101采集到的环境噪声声能通过带动声电转换模块102的腔体震动片，使压电膜输出电流，从而进行声电转换。
一优选实施例中，在语音遥控器的正反面各设置一声孔阵列202，在语音遥控器正反两面都设置声孔阵列202的设计，能有效防止因语音遥控器正卧或反卧后，声孔阵列202被遮挡，造成声电转换无法进行。正反面的两个声孔阵列202共用一个声电转换模块102，在提高效率、节省成本的同时，增加产品的实用性。
声孔阵列202的每个声孔都由一个电控开关203控制，语音遥控器的微控制模块106通过控制每个声孔的电控开关203的开启或关闭，调节声孔阵列202中打开的声孔的数量，可以调整声孔阵列202的声腔结构，从而调整语音遥控器采集环境噪声的范围和效率。
另一优选实施例中，本发明提供的语音遥控器还包括音频采集模块104、音频处理模块105；
音频采集模块104，用于在语音遥控器的语音功能开启时，利用麦克声孔201采集用户的语音信号；
音频处理模块105，用于从噪声采集模块101采集的环境噪声中抓取噪声波形，将噪声波形相位相反后与音频采集模块104采集的语音信号进行叠加运算，以滤除语音信号中的环境噪声。
在本实施例中，噪声采集模块101采集的环境噪声除作为能源进行转化利用外，还可以从中抓取出有用的噪声波形，与音频采集模块104采集的语音信号进行反向叠加，滤除语音信号中的环境噪声，实现用户语音信号更好的采样和传输。
再一优选实施例中，本发明提供的语音遥控器还包括：
直流稳压模块107，用于将声电转换模块102转化得到的电信号转化为直流信号并稳压；
升压模块108，用于将直流稳压模块107输出的电信号的电压提升到预先设定的电压值；
充电保护模块109，设置在升压模块108与储能模块103之间，用于防止储能模块103过充。
在本实施例中，环境噪声通过声孔阵列经噪声采集模块101采集后，由声电转换模块102转换为电信号，通过交直流转换、稳压后，升压到4.2V，并通过充放电保护电路直接作用于储能模块103上，对本发明的语音遥控器的储能模块103时时进行充电，而充电保护模块109可以很好的起到防止过冲的情况，在时时刻刻能量转化过程中，维持储能模块103的高电量状态，减少充电次数。
本发明实施例中，储能模块103可使用可充电的锂电池，或其他种类的可充电电池。语音遥控器可以基于红外线、蓝牙以及2.4G无线传输方案，与被控设备例如电视机通信。
图3为本发明实施例提供的语音遥控器对环境噪声和语音信号采集角度的示意图。如图3所示，麦克声孔201对语音信号的音频采集角度为α，声孔阵列202对环境噪声的噪声采集角度为β。
当语音遥控器的语音功能开启时，若音频采集角度α与噪声采集角度β有较大重叠部分，则音频采集角度α信号下包含了较大分量的噪声采集角度β值。为了达到更好的降噪效果，通过计算语音信号和噪声信号的声压等级，微控制模块106逐步调整声孔阵列202中各个声孔的电控开关203，使噪声采集角度β发生变化，当调整至音频采集角度α所采集的语音信号中所包含的噪声采集角度β分量与噪声采集角度β的噪声源相比，低一个数量等级时，判定为最佳噪声采集角度β。此时，噪声采集角度β的上边与音频采集角度α的下边处于接近平行的位置，可以提升语音遥控器的正面语音信号采集能力，同时将音频采集角度α以外的所有音频信号全部作为能源吸收，在降低环境噪声的同时，将声能转化为电能，储存在储能模块103中。
噪声采集角度β所采集的噪声信号在进行声电转化前，可以抓取出有用的噪声波形，将噪声波形进行相位相反的处理后，与音频采集角度α下的声源信号叠加运算，更好的滤除麦克声孔采集的语音信号中的环境噪声。
当语音遥控器的语音功能关闭时，微控制模块106控制声孔阵列202的全部声孔的电控开关203打开，将接收到的音频信号全部转化为电能，存储到储能模块103中，增加能源转化的效率，使电池维持高电量。
本发明提供的语音遥控器可以用于控制电视机，也可以用于控制其他的电器，如电脑、冰箱、空调等。
图4为本发明实施例提供的语音遥控器的供电方法的一具体流程图。如图4所示，本发明实施例提供的一种语音遥控器的供电方法包括：
步骤S401：利用声孔阵列采集语音遥控器周边的环境噪声。
步骤S402：判断语音遥控器的语音功能是否开启。若语音遥控器的语音功能开启，则执行步骤S403；若语音遥控器的语音功能关闭，则执行步骤S408。
步骤S403：利用麦克声孔采集用户的语音信号。
步骤S404：控制声孔阵列的部分声孔关闭。
步骤S405：从采集的环境噪声中抓取噪声波形。
步骤S406：将噪声波形相位相反后与语音信号的波形进行叠加运算，以滤除语音信号中的环境噪声。
步骤S407：将音频处理后的语音信号发送给被控设备。
步骤S408：控制声孔阵列的全部声孔打开。
步骤S409：将采集到的环境噪声转化为电信号。
步骤S410：将电信号作为电能存储，为语音遥控器供电。
其中，声孔阵列设置在语音遥控器的本体上，声孔阵列的每个声孔都由一个电控开关控制，通过语音遥控器的微控制模块控制每个声孔的电控开关的开启或关闭来控制声孔阵列采集环境噪声的范围。
其中步骤S404，在语音遥控器的语音功能开启时，控制声孔阵列的部分声孔关闭，具体包括：
在语音遥控器的语音功能开启时，获取声孔阵列采集的环境噪声的声压以及麦克声孔采集的语音信号中包含的环境噪声的声压；
控制声孔阵列的部分声孔的电控开关开启或关闭，使音频采集角度中包含的环境噪声分量与噪声采集角度中的环境噪声相比，声压低一个数量级。
在本发明提供的语音遥控器的供电方法的一优选实施例中，该方法还包括：
设置直流稳压模块将电信号转化为直流信号并稳压；
设置升压模块将稳压后的电压提升到预先设定的电压值；
以及设置充电保护模块防止语音遥控器的存储模块过充。
综上所述，本发明提供的一种语音遥控器及其供电方法，与现有技术相比，具有以下有益效果：
1、利用声孔阵列采集语音遥控器周边的环境噪声，将环境噪声转化为电能作为语音遥控器工作的能源，避免了更换电池或频繁充电，节能环保，方便使用，具有较好的适用性和应用空间。
2、通过调节声孔阵列中打开的声孔数量，改变声孔阵列的腔体和噪声采集角度，使环境 噪声与用户的语音信号分离，噪声作为能源进行转化利用，同时将其波形反向叠加到语音信号可以滤除语音信号中的环境噪声，使语音信号可以更好的进行采样和传输，减少环境噪声对语音遥控器的不利影响。
3、在语音遥控器的语音功能关闭时，打开声孔阵列中的全部声孔，将采集到的环境噪声全部转化为电能，大大提高了能源利用率。
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内所作的任何修改、等同替换、改进等，均包含在本发明的保护范围内。

Claims (10)

  1. 一种语音遥控器，其特征在于，所述语音遥控器包括：
    噪声采集模块，利用声孔阵列采集所述语音遥控器周边的环境噪声；
    声电转换模块，将所述噪声采集模块采集的环境噪声转化为电信号；
    储能模块，将所述声电转换模块转化得到的电信号作为电能存储，为所述语音遥控器供电；
    其中，所述声孔阵列设置在所述语音遥控器的本体上，声孔阵列的每个声孔都由一个电控开关控制，通过语音遥控器的微控制模块控制每个声孔的电控开关的开启或关闭来控制所述声孔阵列采集环境噪声的范围。
  2. 如权利要求1所述的语音遥控器，其特征在于，所述语音遥控器还包括：
    音频采集模块，在所述语音遥控器的语音功能开启时，利用麦克声孔采集用户的语音信号；
    音频处理模块，从所述噪声采集模块采集的环境噪声中抓取噪声波形，将所述噪声波形相位相反后与所述音频采集模块采集的语音信号进行叠加运算，以滤除语音信号中的环境噪声。
  3. 如权利要求2所述的语音遥控器，其特征在于，
    所述音频处理模块，在所述语音遥控器的语音功能开启时，还计算所述声孔阵列采集的环境噪声的声压以及所述麦克声孔采集的语音信号中包含的环境噪声的声压，并发送给所述微控制模块；
    所述微控制模块，在所述语音遥控器的语音功能关闭时，控制所述声孔阵列的全部声孔的电控开关打开；在所述语音遥控器的语音功能开启时，根据所述声孔阵列采集的环境噪声的声压以及所述麦克声孔采集的语音信号中包含的环境噪声的声压，控制所述声孔阵列的部分声孔的电控开关关闭。
  4. 如权利要求3所述的语音遥控器，其特征在于，
    所述微控制模块，在所述语音遥控器的语音功能开启时，具体是通过控制所述声孔阵列的每个声孔的电控开关开启或关闭，使所述音频采集角度中包含的环境噪声分量与所述噪声采集角度中的环境噪声相比，声压低一个数量级。
  5. 如权利要求1-4任一项所述的语音遥控器，其特征在于，所述语音遥控器还包括：
    直流稳压模块，将所述声电转换模块转化得到的电信号转化为直流信号并稳压；
    升压模块，将所述直流稳压模块输出的电信号的电压提升到预先设定的电压值；
    充电保护模块，设置在所述升压模块与所述储能模块之间，用于防止所述储能模块过充。
  6. 一种语音遥控器的供电方法，其特征在于，所述方法包括：
    利用声孔阵列采集所述语音遥控器周边的环境噪声；
    将采集到的环境噪声转化为电信号；
    将所述电信号作为电能存储，为所述语音遥控器供电；
    其中，所述声孔阵列设置在所述语音遥控器的本体上，声孔阵列的每个声孔都由一个电控开关控制，通过控制每个声孔的电控开关的开启或关闭来控制所述声孔阵列采集环境噪声的范围。
  7. 如权利要求6所述的供电方法，其特征在于，所述方法还包括：
    在所述语音遥控器的语音功能开启时，利用麦克声孔采集用户的语音信号；
    从采集的环境噪声中抓取噪声波形；
    将所述噪声波形相位相反后与所述语音信号的波形进行叠加运算，以滤除语音信号中的环境噪声。
  8. 如权利要求7所述的供电方法，其特征在于，所述方法还包括：
    在所述语音遥控器的语音功能开启时，获取所述声孔阵列采集的环境噪声的声压以及所述麦克声孔采集的语音信号中包含的环境噪声的声压；
    所述利用声孔阵列采集所述语音遥控器周边的环境噪声包括：
    在所述语音遥控器的语音功能关闭时，控制所述声孔阵列的全部声孔打开；在所述语音遥控器的语音功能开启时，控制所述声孔阵列的部分声孔关闭。
  9. 如权利要求8所述的供电方法，其特征在于，
    所述在所述语音遥控器的语音功能开启时，控制所述声孔阵列的部分声孔关闭，具体为：
    根据声孔阵列采集的环境噪声的声压以及所述麦克声孔采集的语音信号中包含的环境噪声的声压，控制所述声孔阵列的每个声孔的电控开关开启或关闭，使所述音频采集角度中包含的环境噪声分量与所述噪声采集角度中的环境噪声相比，声压低一个数量级。
  10. 如权利要求6-9任一项所述的供电方法，其特征在于，所述将所述电信号作为电能存储，为所述语音遥控器供电包括：
    设置直流稳压模块将所述电信号转化为直流信号并稳压，设置升压模块将所述稳压后的电压提升到预先设定的电压值，以及设置充电保护模块防止所述语音遥控器的存储模块过充。
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