CN106971718B - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN106971718B CN106971718B CN201710219678.2A CN201710219678A CN106971718B CN 106971718 B CN106971718 B CN 106971718B CN 201710219678 A CN201710219678 A CN 201710219678A CN 106971718 B CN106971718 B CN 106971718B
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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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
- G10L21/00—Processing of the speech or voice signal 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- G10L2015/223—Execution procedure of a spoken command
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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
- G10L21/00—Processing of the speech or voice signal 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
- G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
- G10L2021/02165—Two microphones, one receiving mainly the noise signal and the other one mainly the speech signal
Abstract
The invention provides an air conditioner and a control method thereof, wherein the air conditioner comprises: the system comprises audio acquisition equipment, a central processing unit, a temperature control mainboard and a refrigerating system; the audio acquisition equipment is used for acquiring external sound information, and the sound information carries state control voice information input by a user; the central processing unit is used for acquiring state control voice information input by the user according to the sound information acquired by the audio acquisition equipment and sending the state control voice information to the temperature control mainboard; and the temperature control mainboard is used for changing the working state of the refrigeration system according to the received state control voice information. The scheme can improve the human-computer interaction performance of the air conditioner.
Description
Technical Field
The invention relates to the technical field of computers, in particular to an air conditioner and a control method of the air conditioner.
Background
The air conditioner becomes an indispensable essential product in the life of people, and the life quality of people is greatly improved. With the development of intelligent household appliance technology, users also put higher demands on the human-computer interaction performance of the air conditioner.
When the air conditioner is used, a consumer often controls the working state of the air conditioner through a fixed button on a remote controller, for example, when the working state of the air conditioner is adjusted to be refrigeration through the remote controller, the user needs to press a button for changing the working state on the remote controller, a symbol of the current working state of the air conditioner can appear on a display screen of the remote controller, and then the user can appear symbols corresponding to different working states every time the user presses the button for changing the working state, for example, heating, dehumidifying and the like, and the user needs to identify the appearing symbols until the symbol corresponding to the refrigeration is determined.
When the remote controller is adopted to control the air conditioner, a user needs to search for corresponding buttons on the remote controller and then recognize symbols displayed on the display screen one by one, so that the human-computer interaction performance of the air conditioner is poor.
Disclosure of Invention
The embodiment of the invention provides an air conditioner and a control method of the air conditioner, which can improve the human-computer interaction performance of the air conditioner.
In a first aspect, an embodiment of the present invention provides an air conditioner, including: the system comprises audio acquisition equipment, a central processing unit, a temperature control mainboard and a refrigerating system; wherein the content of the first and second substances,
the audio acquisition equipment is used for acquiring external sound information, and the sound information carries state control voice information input by a user;
the central processing unit is used for acquiring state control voice information input by the user according to the sound information acquired by the audio acquisition equipment and sending the state control voice information to the temperature control mainboard;
and the temperature control mainboard is used for changing the working state of the refrigeration system according to the received state control voice information.
Preferably, the first and second electrodes are formed of a metal,
the air conditioner further includes: a characteristic extraction unit, an independent component analysis unit and a filter;
the audio capture device includes: a first microphone and a second microphone; wherein the content of the first and second substances,
the first microphone is used for sending the collected sound information to the characteristic extraction unit;
the second microphone is used for sending the collected sound information to the independent component analysis unit;
the characteristic extraction unit is used for determining existence probabilities respectively corresponding to the state control voice information input by the user and the noise of the environment where the user is located according to the voice information sent by the first microphone, and sending the existence probabilities to the independent component analysis unit;
the independent component analysis unit is used for extracting the state control voice information input by the user according to the sound information sent by the second microphone, the existence probabilities corresponding to the state control voice information input by the user and the noise of the environment where the user is located, and sending the state control voice information input by the user to the filter;
the filter is used for increasing the sound intensity of the state control voice information input by the user and sending the enhanced state control voice information to the central processing unit.
Preferably, the first and second electrodes are formed of a metal,
the central processing unit comprises a setting unit, an analysis unit and a processing unit; wherein the content of the first and second substances,
the setting unit is used for setting an activation word and at least one working state, and at least one command word corresponding to each working state;
the analysis unit is used for analyzing the state control voice information input by the user and acquiring an activation word and at least one command word input by the user;
the processing unit is used for determining whether the activation words input by the user are the same as the activation words set by the setting unit or not, and if so, sending at least one command word input by the user to the temperature control main board;
the temperature control main board is used for determining a target working state corresponding to at least one command word input by the user according to the at least one command word input by the user and changing the working state of the refrigeration system into the target working state.
Preferably, the first and second electrodes are formed of a metal,
the air conditioner further includes: an audio power amplifier and a speaker; wherein the content of the first and second substances,
the processing unit is further used for sending at least one command word input by the user to the audio power amplifier;
and the audio power amplifier is used for driving the loudspeaker to play the at least one command word input by the user when the at least one command word input by the user is received.
Preferably, the first and second electrodes are formed of a metal,
the working state comprises the turning on of an air conditioner;
the temperature control main board is further configured to detect, when the determined target working state is that the air conditioner is turned on, a number of times that a command word corresponding to the turned-on air conditioner is continuously received, determine whether the number of times is greater than a preset threshold value, if so, control the refrigeration system to be turned on, and otherwise, send a prompt instruction to the processing unit;
the processing unit is further used for sending the prompt instruction to the audio power amplifier;
and the audio power amplifier is further used for driving the loudspeaker to play the prompt instruction when receiving the prompt instruction, so that the user inputs a command word corresponding to the working state of starting the air conditioner according to the prompt instruction.
In a second aspect, an embodiment of the present invention provides a method for controlling an air conditioner, including:
collecting external sound information, wherein the sound information carries state control voice information input by a user;
acquiring state control voice information input by the user according to the voice information;
and controlling the voice information according to the state input by the user, and changing the working state of the refrigerating system of the air conditioner.
Preferably, the first and second electrodes are formed of a metal,
the acquiring the state control voice information input by the user according to the sound information includes:
determining existence probabilities respectively corresponding to the state control voice information input by the user and the noise of the environment where the user is located according to the sound information;
and extracting the state control voice information input by the user according to the existence probability.
Preferably, the first and second electrodes are formed of a metal,
the control method further includes: presetting an activation word and at least one working state, and at least one command word corresponding to each working state;
the changing of the working state of the refrigeration system of the air conditioner according to the state control voice information input by the user comprises the following steps:
analyzing the state control voice information input by the user to obtain an activation word and at least one command word input by the user;
determining whether the activation word input by the user is the same as the preset activation word;
and when the command words are the same, determining a target working state corresponding to the command words input by the user according to the command words input by the user, and changing the working state of the refrigeration system to the target working state.
Preferably, the first and second electrodes are formed of a metal,
after the acquiring the activation word and the at least one command word input by the user, further comprising:
and playing at least one command word input by the user.
Preferably, the first and second electrodes are formed of a metal,
the determining a target working state corresponding to the at least one command word input by the user according to the at least one command word input by the user comprises:
determining the target working state as starting an air conditioner;
further comprising:
detecting the times of continuously receiving command words corresponding to the starting of the air conditioner;
and judging whether the times are greater than a preset threshold value, if so, controlling the refrigeration system to be started, otherwise, playing a prompt instruction so that the user inputs a command word corresponding to the working state of starting the air conditioner according to the prompt instruction.
The embodiment of the invention provides an air conditioner and a control method of the air conditioner. Therefore, a user does not need to recognize the buttons of the remote controller one by one and the symbols corresponding to the working states of the air conditioner respectively, and can directly control the working states of the air conditioner through voice, so that the man-machine interaction performance of the air conditioner is improved.
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 introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an air conditioner according to another embodiment of the present invention;
fig. 3 is a schematic structural view of an air conditioner according to still another embodiment of the present invention;
fig. 4 is a schematic structural view of an air conditioner according to still another embodiment of the present invention;
fig. 5 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 6 is a flowchart of a control method of an air conditioner according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides an air conditioner, including: the system comprises an audio acquisition device 101, a central processing unit 102, a temperature control main board 103 and a refrigeration system 104; wherein the content of the first and second substances,
the audio acquisition device 101 is configured to acquire external sound information, where the sound information carries state control voice information input by a user;
the central processing unit 102 is configured to obtain state control voice information input by the user according to the sound information acquired by the audio acquisition device 101, and send the state control voice information to the temperature control main board 103;
the temperature control main board 103 is configured to change the working state of the refrigeration system 104 according to the received state control voice message.
In the above embodiment, the working state of the air-conditioning refrigeration system is changed by acquiring external sound information, acquiring state control voice information input by a user from the acquired sound information, and controlling the voice information according to the state input by the user. Therefore, a user does not need to recognize the buttons of the remote controller one by one and the symbols corresponding to the working states of the air conditioner respectively, and can directly control the working states of the air conditioner through voice, so that the man-machine interaction performance of the air conditioner is improved.
In order to filter out unwanted noise in the environment where the user is located and further improve the man-machine interaction performance of the air conditioner, in an embodiment of the present invention, as shown in fig. 2, the air conditioner may further include: a characteristic extraction unit 201, an independent component analysis unit 202, and a filter 203;
the audio capture device 101 may include: a first microphone 204 and a second microphone 205; wherein the content of the first and second substances,
the first microphone 204 is configured to send the collected sound information to the characteristic extraction unit 201;
the second microphone 205 is configured to send the collected sound information to the independent component analysis unit 202;
the characteristic extraction unit 201 is configured to determine existence probabilities respectively corresponding to the state control voice information input by the user and the noise of the environment where the user is located according to the sound information sent by the first microphone 204, and send the existence probabilities to the independent component analysis unit 202;
the independent component analysis unit 202 is configured to extract the state control voice information input by the user according to the sound information sent by the second microphone 205, and the existence probabilities respectively corresponding to the state control voice information input by the user and the noise of the environment where the user is located, and send the state control voice information input by the user to the filter 203;
the filter 203 is configured to increase the sound intensity of the state control voice information input by the user, and send the enhanced state control voice information to the central processing unit 102.
Here, two microphones 204 and 205 are used to collect sound information respectively, and the collected sound information is sent to the characteristic extraction unit 201 and the independent component analysis unit 202 for processing respectively, the characteristic extraction unit 201 can determine existence probabilities corresponding to the sound information input by the user and the noise of the environment where the user is located respectively, and send the existence probabilities to the independent component analysis unit 202, then the independent component analysis unit 202 can obtain a depth space existence signal corresponding to the state control sound information input by the user through signal processing according to the existence probabilities and the sound information collected by the other microphone, then process the depth space existence signal through a spatial filter to obtain an enhanced stereo signal, and process the enhanced stereo signal through a band-pass filter to further enhance the enhanced stereo signal.
Therefore, the noise of the environment where the user is located is filtered, the sound intensity of the state control voice information input by the user is improved, the state control voice information input by the user can be accurately recognized by the central processing unit and processed, the phenomenon that when the environment where the user is located is noisy is avoided, the working state of the refrigerating system is mistakenly changed due to the fact that the state control voice information input by the user is mistakenly recognized by the air conditioner, and the man-machine interaction performance of the air conditioner is further improved.
As shown in fig. 3, in an embodiment of the present invention, the central processing unit 102 includes a setting unit 301, an analyzing unit 302, and a processing unit 303; wherein the content of the first and second substances,
the setting unit 301 is configured to set an activation word and at least one working state, and at least one command word corresponding to each working state;
the analyzing unit 302 is configured to analyze the state control voice information input by the user, and acquire an activation word and at least one command word input by the user;
the processing unit 303 is configured to determine whether the activation word input by the user is the same as the activation word set by the setting unit 301, and send at least one command word input by the user to the temperature control main board 103 when the activation word input by the user is the same as the activation word set by the setting unit 301;
the temperature control main board 103 is configured to determine, according to the at least one command word input by the user, a target working state corresponding to the at least one command word input by the user, and change the working state of the refrigeration system 104 to the target working state.
Specifically, when the air conditioner does not receive the state control voice information input by the user within the set time, for example, when the voice information input by the user is not received within 15-30 s, the air conditioner turns off the voice recognition function, and at this time, the user needs to input a specific activation word first to restart the voice recognition function of the air conditioner. For example, the setting unit 301 of the central processing unit 102 sets the activation word as "turn-on voice", which can be set by the user in a customized manner, and when the user needs to use the voice recognition function of the air conditioner, he needs to first shout the activation word "turn-on voice", and when the processing unit 303 determines that the activation word input by the user is the same as the preset activation word, the voice recognition function of the air conditioner is turned on, and the user is prompted to continue inputting command words related to the working state of the air conditioner.
For example, when the command word input by the user is "temperature rise once", the processing unit 303 may send the command word to the temperature control motherboard 103 through a UART (Universal Asynchronous Receiver/Transmitter), and the temperature control motherboard 103 may change the operating state of the refrigeration system according to the command word, so that the air conditioner raises the temperature once in the current operating mode. In addition, the user can control various working states of the air conditioner, such as temperature, wind power, a refrigeration mode and the like according to the voice information. Therefore, the mode of carrying out dual recognition on the activating words and the command words is adopted, so that the voice recognition function of the air conditioner can be closed when no user inputs voice information, and the consumed electric energy of the air conditioner is reduced; when the user inputs the voice information, the command words included in the voice information of the user are accurately recognized, so that the refrigerating system is controlled to change the working state.
In order to make the user know the operating state of the air conditioner and further improve the man-machine interaction performance of the air conditioner, in an embodiment of the present invention, as shown in fig. 4, the air conditioner may further include: an audio power amplifier 401 and a speaker 402; wherein the content of the first and second substances,
the processing unit 303 is further configured to send at least one command word input by the user to the audio power amplifier 401;
the audio power amplifier 401 is configured to, when receiving the at least one command word input by the user, drive the speaker 402 to play the at least one command word input by the user.
For example, when the command word input by the user is "temperature increase by one degree", on one hand, the temperature control main board 103 controls the refrigeration system to increase the temperature by one degree by using the command word, and on the other hand, the processing unit 303 sends the command word to the audio power amplifier 401, so that the audio power amplifier 401 amplifies the audio signal corresponding to the command word, and then drives the speaker to emit the command word "temperature increase by one degree". The user can know that the voice recognition system of the air conditioner successfully receives the command word input by the user and correspondingly changes the command word according to the command word, so that the information feedback of the air conditioner to the user is realized, and the man-machine interaction performance of the air conditioner is further improved.
In order to prevent the air conditioner from being started accidentally, in an embodiment of the present invention, the operating state includes turning on the air conditioner;
the temperature control main board 103 is further configured to detect, when the determined target working state is the air conditioner turning on, a number of times that a command word corresponding to the air conditioner turning on is continuously received, determine whether the number of times is greater than a preset threshold, if so, control the refrigeration system 104 to turn on, and otherwise, send a prompt instruction to the processing unit 303;
the processing unit 303 is further configured to send the prompt instruction to the audio power amplifier 401;
the audio power amplifier 401 is further configured to, when receiving the prompt instruction, drive the speaker to play 402 the prompt instruction, so that the user inputs a command word corresponding to the operating state of turning on the air conditioner according to the prompt instruction.
For example, when the command word corresponding to turning on the air conditioner is "turn on the air conditioner", and the preset threshold is two times, when the user firstly yells the command word of "turn on the air conditioner", the processing unit 303 sends a prompt instruction to the audio power amplifier 401 according to the received command word, so that the audio power amplifier 401 drives the speaker 402 to play the prompt instruction for the user, for example, the prompt instruction is "please repeat once", and then the user will yell the command word of "turn on the air conditioner" again according to the received prompt instruction. The temperature control main board 103 controls the refrigeration system to start only after receiving the command word of "turn on the air conditioner" twice continuously. By the method, the phenomenon that the air conditioner is started by mistake under the condition that a user does not know that the air conditioner is started by collecting external noise when the voice function of the air conditioner is started can be avoided, energy waste is caused, and air conditioner loss is increased.
In addition, the air conditioner can also be provided with an infrared remote controller, and the infrared remote controller is provided with a plurality of function keys, including a voice recognition function switch, a temperature rising/lowering key, a wind direction key and the like, so that a user can control the voice recognition function to be turned on or off through the remote controller, and the working state of the air conditioner can be changed by utilizing the remote controller. Meanwhile, the body of the air conditioner is provided with a key board, the key board is also provided with a plurality of function keys, and a user can change the working state of the air conditioner through the function keys on the body. Therefore, the air conditioner provides multiple modes of selection for a user, and the user can select one mode of use according to actual needs, so that the user experience is improved.
As shown in fig. 5, an embodiment of the present invention provides a method for controlling an air conditioner, which may include the steps of:
In the above embodiment, the working state of the air-conditioning refrigeration system is changed by acquiring external sound information, acquiring state control voice information input by a user from the acquired sound information, and controlling the voice information according to the state input by the user. Therefore, a user does not need to recognize the buttons of the remote controller one by one and the symbols corresponding to the working states of the air conditioner respectively, and can directly control the working states of the air conditioner through voice, so that the man-machine interaction performance of the air conditioner is improved.
In order to filter out unwanted noise in the environment where the user is located and further improve the man-machine interaction performance of the air conditioner, in an embodiment of the present invention, the specific implementation manner of step 502 may include:
determining existence probabilities respectively corresponding to the state control voice information input by the user and the noise of the environment where the user is located according to the sound information;
and extracting the state control voice information input by the user according to the existence probability.
Specifically, two microphones are used for respectively collecting sound information, the collected sound information is respectively sent to a characteristic extraction unit and an independent component analysis unit for processing, the characteristic extraction unit can determine existence probabilities respectively corresponding to the sound information input by a user and the noise of the environment where the user is located, the existence probabilities are sent to the independent component analysis unit, and the independent component analysis unit can obtain a depth space existence signal corresponding to the state control sound information input by the user through signal processing according to the existence probabilities and the sound information collected by the other microphone.
Then, the depth space existence signal can be further sent to a spatial filter, the depth space existence signal is processed through the spatial filter to obtain an enhanced stereo signal, and the enhanced stereo signal is processed through a band-pass filter to further enhance the enhanced stereo signal. Therefore, the noise of the environment where the user is located is filtered, the sound intensity of the state control voice information input by the user is improved, the state control voice information input by the user can be accurately recognized by the central processing unit and processed, the phenomenon that when the environment where the user is located is noisy is avoided, the working state of the refrigerating system is mistakenly changed due to the fact that the state control voice information input by the user is mistakenly recognized by the air conditioner, and the man-machine interaction performance of the air conditioner is further improved.
In one embodiment of the present invention, the control method may further include: presetting an activation word and at least one working state, and at least one command word corresponding to each working state;
specific embodiments of step 103 may include:
analyzing the state control voice information input by the user to obtain an activation word and at least one command word input by the user;
determining whether the activation word input by the user is the same as the preset activation word;
and when the command words are the same, determining a target working state corresponding to the command words input by the user according to the command words input by the user, and changing the working state of the refrigeration system to the target working state.
Specifically, when the air conditioner does not receive the state control voice information input by the user within the set time, for example, when the voice information input by the user is not received within 15-30 s, the air conditioner turns off the voice recognition function, and at this time, the user needs to input a specific activation word first to restart the voice recognition function of the air conditioner. For example, the central processing unit of the air conditioner sets the activation word of the air conditioner to be 'turn-on voice', the activation word can be set by a user in a self-defined way, when the user needs to use the voice recognition function of the air conditioner, the user needs to firstly shout the activation word 'turn-on voice', when the central processing unit determines that the activation word input by the user is the same as the preset activation word, the voice recognition function of the air conditioner is turned on, and the user is prompted to continue to input command words related to the working state of the air conditioner.
For example, when the command word input by the user is "temperature rise once", the central processing unit may send the command word to the temperature control motherboard of the air conditioner through a UART (Universal Asynchronous Receiver/Transmitter), and the temperature control motherboard may change the operating state of the air conditioning refrigeration system according to the command word, so that the air conditioner raises the temperature once in the current operating mode. In addition, the user can control various working states of the air conditioner, such as temperature, wind power, a refrigeration mode and the like according to the voice information. Therefore, the mode of carrying out dual recognition on the activating words and the command words is adopted, so that the voice recognition function of the air conditioner can be closed when no user inputs voice information, and the consumed electric energy of the air conditioner is reduced; when the user inputs the voice information, the command words included in the voice information of the user are accurately recognized, so that the refrigerating system is controlled to change the working state.
In order to make the user know the working state of the air conditioner and further improve the man-machine interaction performance of the air conditioner,
after the acquiring the activation word and the at least one command word input by the user, further comprising:
and playing at least one command word input by the user.
For example, when the command word input by the user is "temperature rise once", on one hand, the temperature control main board of the air conditioner controls the refrigeration system to raise the temperature by one degree by the command word, and on the other hand, the central processing unit sends the command word to the audio power amplifier in the air conditioner, so that the audio power amplifier amplifies the audio signal corresponding to the command word, and then drives the loudspeaker to send out the command word "temperature rise once". The user can know that the voice recognition system of the air conditioner successfully receives the command word input by the user and correspondingly changes the command word according to the command word, so that the information feedback of the air conditioner to the user is realized, and the man-machine interaction performance of the air conditioner is further improved.
In order to prevent the air conditioner from being turned on accidentally, in an embodiment of the present invention, the determining, according to the at least one command word input by the user, a target operating state corresponding to the at least one command word input by the user includes:
determining the target working state as starting an air conditioner;
when the target working state is that the air conditioner is started, the method further comprises the following steps:
detecting the times of continuously receiving command words corresponding to the starting of the air conditioner;
and judging whether the times are greater than a preset threshold value, if so, controlling the refrigeration system to be started, otherwise, playing a prompt instruction so that the user inputs a command word corresponding to the working state of starting the air conditioner according to the prompt instruction.
For example, when the command word corresponding to turning on the air conditioner is "turn on the air conditioner", and the preset threshold is two times, when the user firstly shouts the command word of "turn on the air conditioner", the central processing unit sends a prompt instruction to the audio power amplifier according to the received command word, so that the audio power amplifier drives the speaker to play the prompt instruction for the user, for example, the prompt instruction is "please repeat once", and then the user will shout the command word of "turn on the air conditioner" again according to the received prompt instruction. The temperature control main board controls the refrigeration system to be started after receiving the command word of 'opening the air conditioner' twice continuously. By the method, the phenomenon that the air conditioner is started by mistake under the condition that a user does not know that the air conditioner is started by collecting external noise when the voice function of the air conditioner is started can be avoided, energy waste is caused, and air conditioner loss is increased.
The following describes the air conditioner control method provided by the embodiment of the present invention in detail by taking an example that a user controls the air conditioner to be turned on through voice information, as shown in fig. 6, the method may include the following steps:
In step 604, the independent component analysis unit extracts the "open voice" activation word input by the user by using the existence probability determined by the characteristic extraction unit and the sound information collected by the microphone, and increases the sound intensity of the "open voice" activation word by using the filter.
Here, the individual component analyzing unit may obtain a depth space existence signal corresponding to a "turn-on voice" activation word input by a user through signal processing according to the existence probability and sound information collected by another microphone, then process the depth space existence signal through a spatial filter to obtain an enhanced stereo signal, and process the enhanced stereo signal through a band pass filter to further enhance the enhanced stereo signal. And the activation word input by the user is the same as the preset activation word, thereby starting the voice recognition function of the air conditioner.
At the moment, the voice recognition function of the air conditioner is successfully started, and then feedback can be carried out to the user in a mode that the loudspeaker plays a prompt instruction, so that the user can input command words according to the prompt instruction of 'successful voice starting'.
And step 606, according to the received prompt instruction, the user yells an air conditioner opening command word to the air conditioner.
In steps 606 to 608, in order to avoid the air conditioner from being turned on by mistake due to the collection of the noise in the environment, when the command word "turn on the air conditioner" input by the user is received for the first time, the prompt instruction "please repeat once" is played to the user by using the speaker, so that the user can input the same command word again for confirmation.
In step 609, the user again speaks the "turn on air conditioner" command word to the air conditioner.
And step 610, sending the command word of 'opening the air conditioner' to the temperature control mainboard again by using the central processing unit of the air conditioner, and controlling the refrigeration system to be opened by the temperature control mainboard according to the received command word.
When the temperature control main board receives the command word of 'opening the air conditioner' for the second time, the refrigeration system is controlled to be opened, so that the phenomenon that when the voice function of the air conditioner is opened, the air conditioner is started by mistake under the condition that a user does not know due to the fact that external noise is collected, energy waste is caused, and air conditioner loss is increased is avoided. It should be noted that, when the user inputs a command word, the air conditioner also performs noise reduction processing on the collected voice information by using the methods in step 603 and step 604, so as to facilitate the central processing unit to process the voice information input by the user.
After the air conditioner is started successfully, a prompt instruction of 'the air conditioner is started' is played by using the loudspeaker so as to feed back a user, and the user can know the working state of the air conditioner.
In the above embodiment, the external voice information is collected by the dual microphones, the activation word input by the user is extracted from the collected voice information, and when the activation word input by the user is the same as the preset activation word, the voice recognition function of the air conditioner is turned on, so that when no voice information is input by the user, the voice recognition function of the air conditioner is turned off, and the power consumption of the air conditioner is reduced. And then playing prompt information to the user according to the command words corresponding to the starting state of the air conditioner input by the user so as to enable the user to confirm, controlling a refrigeration system of the air conditioner to be started when the command words corresponding to the starting state input by the user are received again, and playing related prompt instructions through a loudspeaker so as to feed back to the user. Therefore, the air conditioner is controlled to be started by utilizing the voice information input by the user, the man-machine interaction performance of the air conditioner is improved, the phenomenon that the air conditioner is started by mistake under the condition that the user is unaware due to the fact that external noise is collected when the voice function of the air conditioner is started can be avoided, energy waste and air conditioner loss are caused, meanwhile, information feedback of the air conditioner to the user is achieved, and the man-machine interaction performance of the air conditioner is further improved.
In summary, the embodiments of the present invention have at least the following advantages:
1. in the embodiment of the invention, the working state of the air-conditioning refrigeration system is changed by acquiring the external sound information, acquiring the state control voice information input by the user from the acquired sound information and controlling the voice information according to the state input by the user. Therefore, a user does not need to recognize the buttons of the remote controller one by one and the symbols corresponding to the working states of the air conditioner respectively, and can directly control the working states of the air conditioner through voice, so that the man-machine interaction performance of the air conditioner is improved.
2. In the embodiment of the invention, the two microphones are used for respectively collecting the sound information, the existence probabilities respectively corresponding to the state control voice information input by the user and the noise in the environment where the user is located in the collected sound information are determined, the noise reduction processing is carried out on the collected sound information according to the determined existence probabilities, the state control voice information input by the user is extracted, and the sound intensity of the state control voice information input by the user is increased, so that the central processing unit can accurately identify the state control voice information input by the user and process the state control voice information, the phenomenon that when the environment where the user is located has high noise, the working state of the refrigeration system is mistakenly changed due to the fact that the state control voice information input by the user is mistakenly identified by the air conditioner is avoided, and the man-machine interaction performance of the air conditioner is further improved.
3. In the embodiment of the invention, the activation words and the command words are analyzed from the state control voice information input by the user, and when the activation words input by the user are the same as the preset activation words, the working state of the refrigeration system is changed into the target working state of the refrigeration system corresponding to the command words input by the user according to the command words input by the user. Therefore, the mode of carrying out dual recognition on the activating words and the command words is adopted, so that the voice recognition function of the air conditioner can be closed when no user inputs voice information, and the consumed electric energy of the air conditioner is reduced; when the user inputs the voice information, the command words included in the voice information of the user can be accurately recognized, so that the refrigerating system is controlled to change the working state, and the user experience is improved.
4. In the embodiment of the invention, the audio power amplifier drives the loudspeaker to play the command words input by the user, so that the user knows that the air conditioner successfully receives the command words input by the user, and correspondingly changes the command words, thereby realizing the information feedback of the air conditioner to the user and further improving the human-computer interaction performance of the air conditioner.
5. In the embodiment of the invention, when the user controls the voice information to start the air conditioner by inputting the state, the audio power amplifier drives the loudspeaker to play the prompt instruction for the user so that the user inputs the command word corresponding to the start of the air conditioner again according to the played prompt instruction to confirm, and when the command word corresponding to the start of the air conditioner input by the user is received again, the refrigeration system of the air conditioner is started. Therefore, the problem that when the air conditioner is started under the voice function, the air conditioner is mistakenly started under the condition that a user is unaware of external noise collection, energy waste is caused, and air conditioner loss is increased is avoided.
6. In the embodiment of the invention, the air conditioner is provided with the infrared remote controller, the body of the air conditioner is also provided with the key board, and a user can change the working state of the air conditioner through the infrared remote controller or the function keys on the key board. Therefore, the air conditioner provides multiple modes of selection for a user, and the user can select one mode of use according to actual needs, so that the user experience is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. An air conditioner, comprising: the system comprises audio acquisition equipment, a central processing unit, a temperature control mainboard and a refrigerating system; wherein the content of the first and second substances,
the audio acquisition equipment is used for acquiring external sound information, and the sound information carries state control voice information input by a user;
the central processing unit is used for acquiring state control voice information input by the user according to the sound information acquired by the audio acquisition equipment and sending the state control voice information to the temperature control mainboard;
the temperature control main board is used for changing the working state of the refrigeration system according to the received state control voice information;
further comprising: a characteristic extraction unit, an independent component analysis unit and a filter;
the audio capture device includes: a first microphone and a second microphone; wherein the content of the first and second substances,
the first microphone is used for sending the collected sound information to the characteristic extraction unit;
the second microphone is used for sending the collected sound information to the independent component analysis unit;
the characteristic extraction unit is used for determining existence probabilities respectively corresponding to the state control voice information input by the user and the noise of the environment where the user is located according to the voice information sent by the first microphone, and sending the existence probabilities to the independent component analysis unit;
the independent component analysis unit is used for extracting the state control voice information input by the user according to the sound information sent by the second microphone, the existence probabilities corresponding to the state control voice information input by the user and the noise of the environment where the user is located, and sending the state control voice information input by the user to the filter;
the filter is used for increasing the sound intensity of the state control voice information input by the user and sending the enhanced state control voice information to the central processing unit.
2. The air conditioner according to claim 1,
the central processing unit comprises a setting unit, an analysis unit and a processing unit; wherein the content of the first and second substances,
the setting unit is used for setting an activation word and at least one working state, and at least one command word corresponding to each working state;
the analysis unit is used for analyzing the state control voice information input by the user and acquiring an activation word and at least one command word input by the user;
the processing unit is used for determining whether the activation words input by the user are the same as the activation words set by the setting unit or not, and if so, sending at least one command word input by the user to the temperature control main board;
the temperature control main board is used for determining a target working state corresponding to at least one command word input by the user according to the at least one command word input by the user and changing the working state of the refrigeration system into the target working state.
3. The air conditioner according to claim 2,
further comprising: an audio power amplifier and a speaker; wherein the content of the first and second substances,
the processing unit is further used for sending at least one command word input by the user to the audio power amplifier;
and the audio power amplifier is used for driving the loudspeaker to play the at least one command word input by the user when the at least one command word input by the user is received.
4. The air conditioner according to claim 3,
the working state comprises the turning on of an air conditioner;
the temperature control main board is further configured to detect, when the determined target working state is that the air conditioner is turned on, a number of times that a command word corresponding to the turned-on air conditioner is continuously received, determine whether the number of times is greater than a preset threshold value, if so, control the refrigeration system to be turned on, and otherwise, send a prompt instruction to the processing unit;
the processing unit is further used for sending the prompt instruction to the audio power amplifier;
and the audio power amplifier is further used for driving the loudspeaker to play the prompt instruction when receiving the prompt instruction, so that the user inputs a command word corresponding to the working state of starting the air conditioner according to the prompt instruction.
5. A control method of an air conditioner, comprising:
collecting external sound information, wherein the sound information carries state control voice information input by a user;
acquiring state control voice information input by the user according to the voice information;
controlling voice information according to the state input by the user, and changing the working state of a refrigeration system of the air conditioner;
the acquiring the state control voice information input by the user according to the sound information includes:
determining existence probabilities respectively corresponding to the state control voice information input by the user and the noise of the environment where the user is located according to the sound information;
and extracting the state control voice information input by the user according to the existence probability.
6. The control method according to claim 5,
further comprising: presetting an activation word and at least one working state, and at least one command word corresponding to each working state;
the changing of the working state of the refrigeration system of the air conditioner according to the state control voice information input by the user comprises the following steps:
analyzing the state control voice information input by the user to obtain an activation word and at least one command word input by the user;
determining whether the activation word input by the user is the same as the preset activation word;
and when the command words are the same, determining a target working state corresponding to the command words input by the user according to the command words input by the user, and changing the working state of the refrigeration system to the target working state.
7. The control method according to claim 6,
after the acquiring the activation word and the at least one command word input by the user, further comprising:
and playing at least one command word input by the user.
8. The control method according to claim 7,
the determining a target working state corresponding to the at least one command word input by the user according to the at least one command word input by the user comprises:
determining the target working state as starting an air conditioner;
further comprising:
detecting the times of continuously receiving command words corresponding to the starting of the air conditioner;
and judging whether the times are greater than a preset threshold value, if so, controlling the refrigeration system to be started, otherwise, playing a prompt instruction so that the user inputs a command word corresponding to the working state of starting the air conditioner according to the prompt instruction.
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| CN108758989A (en) * | 2018-04-28 | 2018-11-06 | 四川虹美智能科技有限公司 | A kind of air-conditioning and its application method |
| CN108592349A (en) * | 2018-04-28 | 2018-09-28 | 四川虹美智能科技有限公司 | A kind of air-conditioner control system |
| CN108758987A (en) * | 2018-04-28 | 2018-11-06 | 四川虹美智能科技有限公司 | A kind of air-conditioner control system |
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| CN110827836B (en) * | 2019-10-23 | 2022-05-03 | 珠海格力电器股份有限公司 | Method and device for resetting awakening words, electronic equipment and storage medium |
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