CN109737521A - Air purifier with voice control function - Google Patents

Air purifier with voice control function Download PDF

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Publication number
CN109737521A
CN109737521A CN201811637156.5A CN201811637156A CN109737521A CN 109737521 A CN109737521 A CN 109737521A CN 201811637156 A CN201811637156 A CN 201811637156A CN 109737521 A CN109737521 A CN 109737521A
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module
air purifier
voice
clarifier
sound
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CN201811637156.5A
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CN109737521B (en
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李劲松
张燚
王立冲
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Beijing 352 Environmental Protection Technology Co Ltd
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Beijing 352 Environmental Protection Technology Co Ltd
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Abstract

The invention discloses one kind to have voice control, voice broadcast, internet is online and the air purifier of local audio and video playing function, which includes speech control module, speech reception module, transmission module, air purifier automatically controlled module and intelligence APP module;Voice interactive function can be passed through in the case where there is network environment, it realizes to clarifier operating status, running state parameter casting, online and local music plays and video playback capability, the voice command or inquiry message that can be issued simultaneously by the connection with Cloud Server according to user and user carry out the interaction of man-machine natural language, other than the control function of clarifier itself, the interaction of internet information and media can also be carried out.

Description

Air purifier with voice control function
Technical field
This patent is related to a kind of air purifier with voice control function, more particularly to has interactive voice and view Frequently, the intelligent air purifier of the functions such as music.
Background technique
Current air purifier function is many and diverse, but lacks a kind of with the production of the purification class of voice control and interactive function Product, and presently, there are some similar products can only all identify simple functions (such as switching the response of simple phrase), use Getting up has very big limitation, does not have through speech study function, has the complex control logic to air purifier class product.
It simultaneously by increase voice interactive function, can be combined with existing smart home, realize such as video playing, The functions such as music assign richer content a simple life household electrical appliances.
The present inventor furthers investigate existing air purifier due to the above reasons, to one kind out to be designed It is able to solve the air purifier of the above problem.
Summary of the invention
In order to overcome the above problem, present inventor has performed sharp studies, and designing one kind has voice control, and voice is broadcast Report, internet is online and the air purifier of local audio and video playing function, which includes speech control module, voice Receiving module, transmission module, air purifier automatically controlled module and intelligence APP module;It can be handed over by voice in the case where there is network environment Mutual function realizes that running state parameter casting, online and local music plays and video playing function to clarifier operating status Can, at the same the voice command or inquiry message that can be issued by the connection with Cloud Server according to user and user carry out it is man-machine oneself The interaction of right language can also carry out the interaction of internet information and media other than the control function of clarifier itself, from And complete the present invention.
In particular it is object of the present invention to provide a kind of air purifier with voice control function, feature It is, which includes speech control module, speech reception module, transmission module, air purifier automatically controlled module and intelligence APP module;
Speech control module is mounted on the top of air purifier, by controlling terminal, wireless signal transmitting module, Mike Wind/loudspeaker composition can be realized by voice interactive function to clarifier operating status, operating status ginseng in the case where there is network environment Number casting, online and local music plays and video playback capability, while can be sent out by the connection with Cloud Server according to user Voice command or inquiry message out and user carry out the interaction of man-machine natural language, in addition to clarifier itself control function with Outside, the interaction of internet information and media can also be carried out.
Preferably, intelligent APP module by network connection realize phonetic incepting, and then control transmission module to clarifier into Row control, while the operating status of clarifier, called data and video can be adjusted by the voice acceptance terminal of intelligent APP module Function selection etc..
Preferably, which can be realized by phonetic incepting and control transmission module to clarifier operating status Control, meets intelligentized manipulation demand.
Preferably, the intelligence APP module is interacted with Cloud Server, obtains future weather by the intelligence APP module Forecast information, and then trip prompt is provided.
Preferably, which further includes vocal print module,
The vocal print module is connected with speech reception module, to judge the sound owner's that speech reception module receives Permission.
Preferably, vocal print module can also carry out vocal print study, thus compatible a variety of dialects.
Preferably, the speech reception module includes internal audio signal unit and ambient sound acquisition unit;
Clarifier internal audio signal is exported as internal sound by the internal audio signal unit, and is converted to sound Frequency signal,
The ambient sound comprising internal sound and external object sound is obtained by the ambient sound acquisition unit, and will Ambient sound collected is converted to environmental audio signal;
To may separate out the audio signal of external object sound.
The air purifier with voice control function provided according to the present invention is related to a kind of according to Internet of Things mode Big data simulation realizes the intelligent operation to clarifier by speech control system, while assigning clarifier new function, makes Its meaning for having more smart home.
Detailed description of the invention
The air purifier with voice control function that Fig. 1 shows a kind of preferred embodiment according to the present invention is integrally tied Structure flow chart;
Fig. 2 shows a kind of air purifier internal junctions with voice control function of preferred embodiment according to the present invention Structure schematic diagram.
Detailed description of the invention
1- microphone
2- loudspeaker/loudspeaker
3- motor
4- wind wheel
The air duct 5-
Specific embodiment
Below by drawings and examples, the present invention is described in more detail.Illustrated by these, the features of the present invention It will be become more apparent from advantage clear.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary " Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.Although each of embodiment is shown in the attached drawings In terms of kind, but unless otherwise indicated, it is not necessary to attached drawing drawn to scale.
The air purifier with voice control function provided according to the present invention, as shown in fig. 1, which includes Speech control module, the speech control module specifically include control chip, speech reception module, transmission module, air cleaning Device automatically controlled module and intelligence APP module;
Speech control module is mounted on the top of air purifier, by controlling terminal, wireless signal transmitting module, Mike The composition such as wind/loudspeaker can be realized by voice interactive function to clarifier operating status, operating status in the case where there is network environment Parameter casting, online and local music plays and video playback capability, while can be by the connection with Cloud Server according to user The voice command or inquiry message of sending and user carry out the interaction of man-machine natural language, in addition to the control function of clarifier itself In addition, the interaction of internet information and media can also be carried out.
Intelligent APP module realizes phonetic incepting by network connection, and then controls transmission module and control clarifier, The operating status of clarifier, called data and video capability choosing can be adjusted by the voice acceptance terminal of intelligent APP module simultaneously It selects.
The i.e. described intelligence APP module is mounted in mobile phone, can be sent and be controlled to air purifier by intelligence APP module System instruction, similar with the instruction directly issued by voice control function, can be converted into execution equipment can identify and hold Capable specific instruction.
The air purifier can realize the control to clarifier operating status by phonetic incepting and control transmission module, full The intelligentized manipulation demand of foot.
Further, which is masking purification by wireless signal transmitting module and microphone matrix While device noise effect itself, learns and identify voice messaging and be controlled and show, speech control system can be passed through It realizes the information such as the casting of clarifier end music and air condition prompt, while section needed for video capability realization precisely selection can be passed through Mesh and with television system arrange in pairs or groups use.
The present invention realizes that the phonetic incepting of clarifier controls transmission by a kind of external object sound capturing unit and method Function.The speech reception module is exported internal audio signal for internal sound by the internal audio signal unit;One Or multiple ambient sound acquisition units, acquisition include the ambient sound of exported internal sound and external object sound, and will Ambient sound collected is converted to environmental audio signal, eliminates the inside sound for including in the environmental audio signal by comparing Frequency signal, to isolate the audio signal of the target sound.The present invention provides one kind to receive comprising external object sound Control the air purifier of transfer function.
Specifically, the speech reception module includes internal audio signal unit and ambient sound acquisition unit;It is described Internal audio signal unit is storage chip;
It is stored with clarifier internal audio signal in the internal audio signal unit, the clarifier internal audio signal energy It is enough to export in a voice form, i.e., it exports in the form of audio signal, can also be exported in the form of digital signal;The purification Device internal audio signal refers to clarifier at work, its own noise audio signal that can be generated;
The ambient sound comprising clarifier internal sound and external object sound is obtained by the ambient sound acquisition unit Sound, and ambient sound collected is converted into environmental audio signal;To may separate out target audio signal, i.e. external object The audio signal of sound.
It is stored with the air purifier in the internal audio signal unit and generates noise under different operating power/gear Audio signal, in air purifier work, which can transfer the work for knowing that air purifier is current The rate of doing work/gear, to provide the noise audio signal that air purifier generates under the present situation;
Preferably, in first 10 minutes after air purifier is adjusted to any gear, can also real-time reception and record make an uproar Sound audio signal compared with the noise audio signal wherein stored, and passes through collected signal when amplitude differs greatly The signal of the former storage of replacement, to adapt to increasing with service life, the problem of noise is gradually increased;
In first 10 minutes, cover in the voice signal that the ambient sound acquisition unit obtains with noise audio signal Identical audio band is used for internal sound using the information of acoustic wave of the audio band therefrom extracted as noise audio signal The update processing of information in frequency signal element;
After the completion of information update in internal audio signal unit is handled, remove the sound of ambient sound acquisition unit acquisition The audio band identical with noise audio signal for including in sound signal so that receive and pass to transmission module or It controlling and only has external voice in the voice signal of chip, no air purifier interior noise reduces the difficulty of subsequent voice recognition, Improve the accuracy of voice recognition.
In one preferred embodiment, as shown in Figure 2, which includes microphone 1 and loudspeaker/loudspeaker 2, wherein microphone 1 is circumferentially uniformly distributed in the top of wind wheel, the loudspeaker/loudspeaker 2 be uniformly distributed circumferentially in The top of microphone 1.The wind wheel is the power device of the hollow flow of air of air purifier, for guiding in air purifier Air flowing.The microphone is a part of the ambient sound acquisition unit, and the loudspeaker/loudspeaker are for issuing voice Information is interacted with user.
Preferably, the microphone 1 and loudspeaker/loudspeaker 2 are all a part in the speech reception module, wherein wheat Gram wind 1 is the important component of ambient sound acquisition unit, and the loudspeaker/loudspeaker 2 are used for active noise reduction and and user Voice is linked up.
The air purifier is as shown in Figure 2, further includes motor 3, wind wheel 4, and motor 3 controls wind wheel rotation, wind wheel week It encloses and is provided with air duct 5, drive air to flow through air duct after wind wheel rotation, so that air passes in and out air purifier, the Mike Wind is evenly arranged on above air duct, and the top of microphone is arranged in the loudspeaker, is both provided with multiple, and is uniformly distributed.
Audio signal is acquired by the microphone 1.Internal audio signal unit provides the noise of air purifier generation Then noise audio signal and ambient sound acquisition unit are obtained whole ambient sounds and are transferred to control core together by audio signal At piece, the control chip is preferably chip MCU, is calculated by the comparison of chip MCU, and removal ambient sound acquisition unit obtains Clarifier internal sound signal included in the ambient sound obtained, that is, may separate out target audio signal.
Preferably, the control chip is also referred to as controlling terminal, including the chip MCU, is also used to basis and receives Instruction control the air purifier work;
Storage chip and chip MCU described herein can select chip as known in the art, can be realized Function involved in the application;Preferably, the storage chip is preferably the storage chip of MX25L12835E model, The storage chip of the MX25L12835E model is high-performance serial port Flash memory chip, memory capacity 128Mbit, read or write speed Fastly, support highest 104MHz reading speed, 8/16/32/64 byte burst type read mode of support, the most fast 60ms erasing time, Low in energy consumption, when deep-sleep, only needs 40uA electric current, highest support 100,000 times it is erasable, according to specific work when being convenient to every task The noise audio signal in chip is updated storage as noise.
In the preferred embodiment of the application, the chip MCU is preferably the core of STM32F429ZE model Piece, the chip of the STM32F429ZE model can be used as 32 high-performance microcontrollers based on ARM Cortex-M4 for kernel Device, dominant frequency 180MHz are integrated with monocycle DSP instruction and FPU Float Point Unit, can carry out the calculating and control of some complexity, I/O interface enriches (4 UART serial ports, 3 I2C interfaces, 6 SPI interfaces), exports with timer, RTC clock and PWM, And it is integrated with LCD-TFT display controller, air purifier work can either be controlled according to the instruction received, additionally it is possible to full Foot isolates the task needs of external object acoustic audio signal.
Preferably, which can also carry out noise reduction by the way of active noise reduction, i.e., the described internal audio frequency letter Air purifier is stored in number unit and generates noise audio signal and noise amplitude under different operating power/gear, then is led to Cross loudspeaker/loudspeaker 2 issue it is identical as noise audio amplitude, sound wave/sound of opposite in phase makes two sound waves offset each other, User would not hear the noise sound that air purifier issues again.
Preferably due to which the noise that air purifier generates is with the extension of air purifier stream time and gradually Increase, after air purifier stream time is more than a setting value, the corresponding amplitude for increasing noise, i.e., noise is big Small increase increases by 1 decibel every time;The setting value is preferably 1 hour, i.e., increases by 1 decibel within each continuous work one hour, continuously It works two hours, 2 decibels can be increased altogether naturally.
So in the outside output noise audio signal of the internal audio signal unit and noise level, in conjunction with current wind The continuous working period of machine, makes amendment to the noise level of output, reasonably eliminates noise in order to more accurate.
Simultaneously because noise audio signal is actively eliminated in collected sound, so issuing for active noise reduction Sound wave be also removed together, to will not influence subsequent speech recognition.
In one preferred embodiment, the intelligence APP module is interacted with Cloud Server, passes through the intelligence APP Module obtains long-range weather forecast information, and then provides trip prompt;
Specifically, the intelligence APP module is automatically from the weather forecast downloaded in the following predetermined time in Cloud Server Information, and shown optionally by display screen;It is related to during speech control module and user's interactive voice When to Weather information, the speech control module transfers the weather forecast information automatically, and is provided in a manner of prompt of going on a journey To user.
In one preferred embodiment, which further includes vocal print module,
The vocal print module is connected with speech reception module, to judge the sound owner's that speech reception module receives Permission.The authority information of current vocal print is transmitted into the vocal print module by the intelligence APP module, it is more when continuously receiving It is preferential to execute the high instruction of vocal print permission when the corresponding instruction of a vocal print;
Preferably, the concrete model of the vocal print module is LD3220 speech recognition module, by selecting the LD3220 language Sound identification module executes Application on Voiceprint Recognition and works for compared to other known modules, and cost is lower, maturity and application degree The basic demand of common kinsfolk's Application on Voiceprint Recognition can be met.
Preferably, the vocal print module setting beyond the clouds, after the speech reception module receives phonetic order information, is led to The vocal print module that the phonetic order information is transmitted in cloud by transmission module is crossed, is passed again after via vocal print module analysis vocal print To conversion module, after the conversion module is by carrying out sound differentiation separation and the conversion of audio signal, then pass through instruction conversion Module converter is corresponding command signal, is transferred to corresponding control terminal by the serial port of Wi-Fi or equipment end; Wherein, the vocal print module can select the existing modular platform such as such as Iflytek, Baidu's speech recognition platforms, by this The phonetic study process of vocal print module identifies different vocal print wave bands.
In one preferred embodiment, speech control module includes speech reception module and transmission module, institute's predicate Sound receiving module includes microphone matrix, and the transmission module includes wireless signal transmitting module;
The speech reception module is connect by the way that the i.e. ambient sound acquisition unit of microphone of position as shown in Figure 2 is arranged in Corresponding voice messaging is received, is transferred after ability interior noise information filtering disposes noise further according to internal audio signal unit, Obtained audio-frequency information passes to vocal print module, is knowing after voiceprint analysis through but not limited to Iflytek or Baidu's voice Other system is analyzed and determined that i.e. semantic analysis obtains the control instruction of written form by instruction morphing module therein, i.e., Audio-frequency information is converted into text information, is further converted to digital signal, then control instruction is fed back into equipment end, i.e., instead The specific execution unit fed on air purifier, such as speaker, power conditioning module, motor etc., equipment end is to according to corresponding Communications protocol parsing after be converted into equipment operating instruction, to realize control of the voice to equipment end.
The speech recognition system specifically can choose to interrogate the speech recognition system flown on open platform, the speech recognition System interactive is good, and operation is smooth, and speech recognition degree is high, can satisfy the demand that voice command identifies in the application.
The transmission module includes wireless signal transmitting module, specifically, can include but is not limited to Wi-Fi, bluetooth, 485 communications of the wireless transport modules such as Zigbee and equipment end and serial communication etc..The effect of transmission module is corresponding letter Number by wired or be wirelessly transferred to equipment end or the end APP and realize control to equipment.
The voltage that the air purifier automatically controlled module is used to provide power supply is converted into modules in air purifier Required voltage, and then electronic control module known in the art can be selected to modules power supply in air purifier respectively, it is excellent The concrete model of selection of land, the air purifier automatically controlled module is HG-C-RA626A, and the air of the HG-C-RA626A model is net Change control and relevant operational mode etc. that device automatically controlled module can effectively be compatible with clarifier itself, while being effectively compatible with vocal print Identification and active noise reduction mechanism realize that the optimization of properties of product plays.
The speech recognition system for carrying out semantic analysis can be set inside the air purifier, also can be set Cloud, it is highly preferred that inside the air purifier and cloud is both provided with the speech recognition system for being able to carry out semantic analysis System carries out semantic analysis by the speech recognition system in cloud when the communication between air purifier and cloud is unimpeded, when When communication between air purifier and cloud is unsmooth, language is carried out by the way that the speech recognition system inside air purifier is arranged in Justice analysis, is arranged in the speech recognition system inside air purifier and is connected with the control chip by physical conductors.
When carrying out interactive voice with the air purifier, it is necessary first to specific word/title is called, as the air is net Change the name etc. of device, air purifier when capturing the specific word/title, by speaker or loudspeaker issue exchange/ The voice messaging of reply, such as " you are me ", " what has " then again pass subsequently received voice messaging It is delivered to cloud, Application on Voiceprint Recognition, semantic analysis and conversion is carried out, finally obtains control instruction, returns to specific execution equipment, by It executes equipment and executes the specific instruction.
Experimental example:
Preferably it can identify and execute in order to illustrate the air purifier provided by the invention with voice control function There is the identification of higher phonetic order to execute accuracy rate, verified by comparative experiments for phonetic order;
Experimental example: the air purifier with voice control function provided according to the present invention, the air purifier are selected In be provided with heretofore described speech reception module, transmission module, air purifier automatically controlled module and intelligence APP module, The air purifier can be eliminated mixed air purifier in the voice messaging received by speech reception module and itself be made an uproar Sound, additionally it is possible to which active noise reduction is placed it under indoor environment, working condition with reducing the noise that user hears are as follows: empty After gas purifier operation, speech reception module operates generated noise to motor, wind wheel in air purifier first and picks up It takes, and after the pickup repeatedly of 1-10min weighted average, calculates the corresponding noise of each gear/power, this noise is turned Corresponding sound wave frequency range is turned to, and forms waveform signal, then by sending instructions under MCU at loudspeaker/loudspeaker, by amplifying Device/loudspeaker form and issue that amplitude is identical, sound wave of opposite in phase, so that effectively reduce that blower operating generates extra making an uproar Sound.
Start to input 5 phonetic orders after ten minutes in its work, inputs 5 voices again after its work 80 minutes and refer to It enables, inputs 5 phonetic orders again after its work 200 minutes, count the executive condition of each phonetic order respectively, opening should The active noise reduction function of air purifier, and continue to monitor the noise level in the air cleaning;
Comparative example: in contrast than ground, under identical indoor environment, normal air clarifier in the prior art is set And the intelligent sound box being attached thereto, set the air purifier initialization having the same in the air purifier and experimental example State, which can control air purifier and other connected household electrical appliance by receiving voice messaging, by same People respectively inputs 5 phonetic orders after work respectively after 10 minutes, 80 minutes and 200 minutes, count each phonetic order respectively Executive condition, and continue to monitor the noise level in the air cleaning;
The phonetic order includes:
The booting when equipment is in standby: user: " 352 air purifier " is answered and " needs to open air purifier ? owner ", user " good ", answers " good, owner, clarifier has been opened ";
When needing that air quantity is turned up, user's " 352 air purifier " is answered " what has, and I can help yours, owner ", is used Person " present air? ", answer that " current interior PM2.5 concentration is xx μ g/m3, air quality slight pollution, at present outdoor air Does quality have the tendency that continuous worsening, needs for your fast purification? owner ", user " good ", answers " it is expected that being you after 20min Complete fast purification, owner ", user " good ";
Forecast trip prompt: user's " 352 air purifier " answers " what's the matter, owner ", user " I with removing xx Travelling, what's the matter for that local weather ", answer " owner, I from big data platform obtain you go on a journey ground weather conditions be Xxxxxx ", user " good ".
Obtained statistical result is as follows:
Air quantity+instruction, which refers to, improves air quantity instruction, and air quantity-instruction, which refers to, reduces air quantity instruction, and the Y in practice condition refers to Correct to execute task, the N expression in practice condition fails correct execution task.
By the comparison of above-mentioned experimental example and comparative example it is found that the air provided by the present application with voice control function is net Changing device can more precisely understand, execute phonetic order, and the noise of air cleaning is extremely low, and reaching can be neglected by user Degree slightly;
In the comparative example, due to needing the transmitting by intelligent sound box, transmittance process is more complicated, what is be repeatedly not carried out In phonetic order, be at least once because of the reason of network fluctuation caused by phonetic order be not carried out, the languages that are not carried out of others In sound instruction, major part causes speech recognition inaccurate, it is corresponding to fail accurate judgement phonetic order because of the influence of the factors such as noise Digital Signals instruction.
Combining preferred embodiment above, the present invention is described, but these embodiments are only exemplary , only play the role of illustrative.On this basis, a variety of replacements and improvement can be carried out to the present invention, these each fall within this In the protection scope of invention.

Claims (7)

1. a kind of air purifier with voice control function, which is characterized in that the clarifier includes speech control module, language Sound receiving module, transmission module, air purifier automatically controlled module and intelligence APP module;
Speech control module is mounted on the top of air purifier, by controlling terminal, wireless signal transmitting module, microphone, loudspeaker Composition can realize that running state parameter is broadcast to clarifier operating status by voice interactive function in the case where there is network environment Report, online and local music plays and video playback capability, while can be issued by the connection with Cloud Server according to user Voice command or inquiry message and user carry out the interaction of man-machine natural language, other than the control function of clarifier itself, It can also carry out the interaction of internet information and media.
2. the air purifier according to claim 1 with voice control function, which is characterized in that
Intelligent APP module realizes phonetic incepting by network connection, and then controls transmission module and control clarifier, simultaneously The operating status of clarifier, called data and video capability selection etc. can be adjusted by the voice acceptance terminal of intelligent APP module.
3. the air purifier according to claim 1 with voice control function, which is characterized in that
The air purifier can realize the control to clarifier operating status by phonetic incepting and control transmission module, meet intelligence The manipulation demand of energyization.
4. the air purifier according to claim 1 with voice control function, which is characterized in that
The intelligence APP module is interacted with Cloud Server, obtains long-range weather forecast information by the intelligence APP module, into And provide trip prompt.
5. the air purifier according to claim 1 with voice control function, which is characterized in that
The clarifier further includes vocal print module,
The vocal print module is connected with speech reception module, to judge the power for the sound owner that speech reception module receives Limit.
6. the air purifier according to claim 5 with voice control function, which is characterized in that
Vocal print module can also carry out vocal print study, thus compatible a variety of dialects.
7. the air purifier according to claim 1 with voice control function, which is characterized in that
The speech reception module includes internal audio signal unit and ambient sound acquisition unit;
Clarifier internal audio signal is exported as internal sound by the internal audio signal unit, and is converted to audio letter Number,
The ambient sound comprising internal sound and external object sound is obtained by the ambient sound acquisition unit, and will be adopted The ambient sound of collection is converted to environmental audio signal;
To may separate out the audio signal of external object sound.
CN201811637156.5A 2018-03-07 2018-12-29 Air purifier with voice control function Active CN109737521B (en)

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CN2018101881866 2018-03-07
CN201810188186 2018-03-07

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CN109737521B CN109737521B (en) 2024-06-04

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CN111306709B (en) * 2020-01-20 2021-09-07 海信视像科技股份有限公司 Air conditioner
CN112443922A (en) * 2020-11-29 2021-03-05 陈平 Intelligent household air purification aromatherapy machine control system and method
CN112443922B (en) * 2020-11-29 2022-07-29 深圳市至为芯科技有限公司 Intelligent household air purification aromatherapy machine control system and method
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