Range hood and regulation and control method and device thereof

Abstract

The invention provides a range hood and a regulation and control method and device thereof, and relates to the technical field of intelligent control, the method comprises the following steps: responding to start of a regulation and control function, and collecting a sound signal of an environment where the range hood is located; calculating a sound objective value and a sound quality subjective value corresponding to the sound signal; based on the sound objective value and the sound quality subjective value, judging whether the sound signal meets a pre-configured regulation and control threshold value or not; if not, extracting main contribution factors corresponding to the sound objective value and the sound quality subjective value; generating a regulation sound field based on the main contribution factors; and playing the regulation and control sound field for regulation and control. According to the range hood and the regulation and control method and device thereof, the sound field of the environment where the range hood is located can be actively regulated and controlled, the sound field can be improved or the personalized requirement of a user for sound experience can be met, the emotional value requirement of the user for the sound experience can be met, and then the experience degree of the user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent control, and in particular to a range hood and a control method and device thereof. Background Art

[0002] A range hood, also known as a range hood, an exhaust hood, or simply a range hood, is a kitchen product that purifies the kitchen environment and can absorb and exhaust oil fumes through a centrifugal fan installed inside the range hood.

[0003] Generally, a centrifugal fan includes a volute, an impeller installed in the volute, and a motor that drives the impeller to rotate. When the impeller rotates, negative pressure suction is generated at the center of the fan, sucking the oil smoke under the range hood into the fan, and after being accelerated by the fan, it is collected by the volute and guided to be discharged outdoors. Therefore, the range hood will generate a lot of noise during operation. This noise is an important noise source in the user's home, affecting the user experience. Therefore, the noise of the range hood has become an important reference factor for users when purchasing products.

[0004] At present, various range hood production and research and development companies are doing a lot of research on the vibration and noise reduction of range hoods. As a result, the noise of range hoods is constantly decreasing and the user experience is gradually improving.

[0005] However, current noise reduction measures mainly focus on passive noise reduction, for example, using porous sound-absorbing materials or structures to reduce the noise during the operation of the range hood. Although passive noise reduction can basically meet the user's demand for low noise, it is difficult to actively control the sound field of the range hood, which will also lead to a gradual decline in the user's experience and it is difficult to meet the user's personalized needs for sound experience. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a range hood and a control method and device thereof to alleviate the above-mentioned technical problems.

[0007] In a first aspect, an embodiment of the present invention provides a control method for a range hood, which is applied to the range hood, and the method includes: in response to the start of a control function, collecting a sound signal of an environment in which the range hood is located; calculating an objective sound value and a subjective sound quality value corresponding to the sound signal, wherein the objective sound value is used to characterize the objective characteristics of the sound signal, and the subjective sound quality value is used to characterize the subjective characteristics of the sound signal; judging whether the sound signal meets a pre-configured control threshold based on the objective sound value and the subjective sound quality value; if not, extracting main contributing factors corresponding to the objective sound value and the subjective sound quality value; generating a control sound field based on the main contributing factors; and playing the control sound field to control the sound field corresponding to the sound signal.

[0008] In combination with the first aspect, an embodiment of the present invention provides a first possible implementation method of the first aspect, wherein the above method also includes: extracting a sound digital signal corresponding to the sound signal, and converting the sound digital signal into a sound analog signal; sending a numerical value corresponding to the sound analog signal to a display terminal for display through the display terminal.

[0009] In combination with the first aspect, an embodiment of the present invention provides a second possible implementation of the first aspect, wherein the step of calculating the objective sound value corresponding to the sound signal includes: extracting a sound digital signal corresponding to the sound signal; calculating the time domain sound pressure value corresponding to the sound digital signal according to a pre-configured time domain sound pressure algorithm; performing frequency domain conversion on the time domain sound pressure value to obtain a corresponding frequency domain sound pressure value; and determining the frequency domain sound pressure value as the objective sound value corresponding to the sound signal.

[0010] In combination with the first aspect, an embodiment of the present invention provides a third possible implementation of the first aspect, wherein the step of calculating the subjective sound quality value corresponding to the sound signal includes: extracting a sound digital signal corresponding to the sound signal; extracting an objective sound quality value corresponding to the sound signal based on the sound digital signal, wherein the objective sound quality value includes at least loudness, roughness, and sharpness of the sound signal; inputting the objective sound quality value into a pre-trained first neural network model, and obtaining the subjective sound quality value corresponding to the objective sound quality value by fitting the first neural network model; wherein the training samples for training the first neural network model are objective sound quality value samples marked with sound quality subjective value labels.

[0011] In combination with the first aspect, an embodiment of the present invention provides a fourth possible implementation of the first aspect, wherein the step of judging whether the sound signal meets a pre-configured control threshold based on the objective sound value and the subjective sound quality value includes: judging whether the objective sound value meets the pre-configured objective threshold, and whether the subjective sound quality value meets the pre-configured subjective threshold; if both are satisfied, determining that the sound signal meets the pre-configured control threshold; if any one is not satisfied, determining that the sound signal does not meet the pre-configured control threshold.

[0012] In combination with the first aspect, an embodiment of the present invention provides a fifth possible implementation of the first aspect, wherein the step of extracting the main contributing factors corresponding to the objective sound value and the subjective sound quality value includes: inputting the objective sound value and the subjective sound quality value into a pre-trained second neural network model, and extracting the main contributing factors from the objective sound value and the subjective sound quality value through the second neural network model; wherein the training samples for training the second neural network model are samples marked with main contributing factor labels, and the samples are constructed based on the objective sound value and the subjective sound quality value.

[0013] In combination with the first aspect, an embodiment of the present invention provides a sixth possible implementation of the first aspect, wherein the above-mentioned step of generating a controlled sound field based on the main contributing factors includes: inputting the main contributing factors into a pre-trained third neural network model, and generating parameters of the controlled sound field through the third neural network model; wherein the controlled sound field is a sound field signal with a phase opposite to that of the sound signal; the third neural network model is a pre-trained neural network model with a filtering reverse calculation function; and generating the controlled sound field based on the parameters of the controlled sound field.

[0014] In combination with the fourth possible implementation of the first aspect, an embodiment of the present invention provides a seventh possible implementation of the first aspect, wherein the above method also includes: responding to a configuration operation, the configuration operation is an operation of configuring an objective threshold and / or a subjective threshold; extracting configuration parameters corresponding to the configuration operation; in response to completion of the configuration operation, updating the objective threshold and / or the subjective threshold based on the configuration parameters.

[0015] In a second aspect, an embodiment of the present invention further provides a control device for a range hood, which is applied to the range hood, and the device includes: a collection module, which is used to respond to the activation of the control function and collect the sound signal of the environment in which the range hood is located; a calculation module, which is used to calculate the objective sound value and the subjective sound quality value corresponding to the sound signal, wherein the objective sound value is used to characterize the objective characteristics of the sound signal, and the subjective sound quality value is used to characterize the subjective characteristics of the sound signal; a judgment module, which is used to judge whether the sound signal meets a pre-configured control threshold based on the objective sound value and the subjective sound quality value; an extraction module, which is used to extract the main contributing factors corresponding to the objective sound value and the subjective sound quality value when the judgment result of the judgment module is no; a control module, which is used to generate a control sound field based on the main contributing factors; and play the control sound field to control the sound field corresponding to the sound signal.

[0016] In a third aspect, an embodiment of the present invention further provides a range hood, wherein a controller of the range hood is configured with the range hood control device of the second aspect; the range hood is configured with a microphone and a speaker connected to the controller; the microphone is used to collect sound signals of the environment in which the range hood is located; and the speaker is used to play the control sound field.

[0017] The embodiments of the present invention bring the following beneficial effects:

[0018] The range hood and its control method and device provided by the embodiment of the present invention can respond to the activation of the control function to collect the sound signal of the environment in which the range hood is located; calculate the sound objective value and the sound quality subjective value corresponding to the sound signal, so as to judge whether the sound signal meets the pre-configured control threshold based on the sound objective value and the sound quality subjective value; if not, extract the main contributing factors corresponding to the sound objective value and the sound quality subjective value, and then generate a control sound field based on the main contributing factors; play the control sound field to control the sound field corresponding to the sound signal, so as to realize active control of the sound field of the environment in which the range hood is located, which can not only improve the sound field or meet the user's personalized needs for sound experience, but also help meet the user's emotional value needs for sound experience, thereby improving the user's experience.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of a range hood provided by an embodiment of the present invention;

[0023] Figure 2 A flow chart of a range hood control method provided by an embodiment of the present invention;

[0024] Figure 3 A flow chart of another range hood control method provided by an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of a range hood control device provided by an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0027] Reference numerals: 10 - smoke collecting chamber; 20 - cabinet; 30 - microphone; 40 - loudspeaker. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] At present, noise reduction measures for range hoods are mostly based on passive noise reduction, such as using porous sound-absorbing materials or structures to reduce the noise during the working process of the range hood. However, this method cannot meet the user's needs to actively control the sound field of the range hood, thereby reducing the user's experience.

[0030] Based on this, a range hood and a control method and device thereof provided in an embodiment of the present invention can effectively alleviate the above-mentioned problems.

[0031] To facilitate understanding of this embodiment, a control method for a range hood disclosed in an embodiment of the present invention is first introduced in detail.

[0032] In a possible implementation, an embodiment of the present invention provides a range hood control method, which is applied to a range hood. Specifically, the range hood in the embodiment of the present invention is configured with a microphone and a speaker connected to a controller; wherein the microphone is used to collect sound signals of the environment in which the range hood is located. For example, after the range hood is started, it can monitor the kitchen environment noise in real time and transmit the noise to the controller of the range hood, while the speaker is used to play a control sound field. When the noise of the range hood needs to be controlled, it can make a sound under the control of the controller to actively control the kitchen environment sound field.

[0033] For ease of understanding, Figure 1 A schematic diagram of a range hood is shown, wherein: Figure 1 The perspective in FIG. 1 is an upward perspective, that is, the smoke collecting chamber 10 , the chassis 20 , and the microphone 30 and the loudspeaker 40 disposed at the preset positions of the smoke collecting chamber are shown.

[0034] In a specific implementation, the microphone 30 and the speaker 40 can communicate with the range hood controller via wired or wireless communication, and the controller can be a controller arranged on the range hood body, or a controller arranged on the backend server side and communicating wirelessly with the range hood body. The specific setting can be made according to actual usage conditions, and the embodiment of the present invention is not limited to this.

[0035] based on Figure 1 The range hood shown, Figure 2 A flow chart of a range hood control method is shown, specifically Figure 2As shown, the following steps are included:

[0036] Step S202, in response to the start of the control function, collecting sound signals of the environment in which the range hood is located;

[0037] In actual use, the control function of the range hood can be automatically turned on after the range hood is started, and can also be turned on when triggered by the user. For example, the user can choose not to actively control the sound field of the range hood, and can also actively start the control function as needed during the operation of the range hood. At this time, the controller of the range hood can respond to the start of the control function, and then execute the process of the above step S202.

[0038] Furthermore, when collecting the sound signal of the environment in which the range hood is located, the controller can drive Figure 1 The microphone 30 shown monitors the sound field signal of the kitchen in real time, collects sound signals of a certain signal length, and transmits them to the control controller, thereby further executing the following process.

[0039] Step S204, calculating the objective sound value and the subjective sound quality value corresponding to the sound signal;

[0040] The objective value of sound in the embodiment of the present invention is used to characterize the objective characteristics of the sound signal, and the subjective value of sound quality is used to characterize the subjective characteristics of the sound signal;

[0041] Step S206, judging whether the sound signal meets a pre-configured control threshold based on the sound objective value and the sound quality subjective value;

[0042] Step S208, if not, extract the main contributing factors corresponding to the objective value of the sound and the subjective value of the sound quality;

[0043] Step S210, generating a control sound field based on the main contributing factors;

[0044] Step S212: play the regulated sound field to regulate the sound field corresponding to the sound signal.

[0045] In actual use, in the above step S206, the pre-configured control threshold is actually a relatively comfortable threshold range determined based on the user's sense of sound. For example, when the objective sound value and the subjective sound quality value of the sound signal are both within the threshold range, it means that the sound signal at this time is acceptable to the user, that is, the judgment result of step S206 is yes, and the sound signal at this time meets the pre-configured control threshold, and there is no need to control the sound field corresponding to the sound signal.

[0046] If either the objective sound value or the subjective sound quality value of the sound signal exceeds the threshold range, that is, the judgment result of step S206 is no, it means that the sound signal at this time may cause discomfort to the user, that is, it is necessary to further adjust the sound field corresponding to the sound signal, that is, execute the above-mentioned process of steps S208 to S212.

[0047] The control method of the range hood provided by the embodiment of the present invention can respond to the activation of the control function to collect the sound signal of the environment in which the range hood is located; calculate the sound objective value and the sound quality subjective value corresponding to the sound signal, so as to judge whether the sound signal meets the pre-configured control threshold based on the sound objective value and the sound quality subjective value; if not, extract the main contribution factors corresponding to the sound objective value and the sound quality subjective value, and then generate a control sound field based on the main contribution factors; play the control sound field to control the sound field corresponding to the sound signal, so as to realize the active control of the sound field of the environment in which the range hood is located, which can not only improve the sound field or meet the user's personalized needs for sound experience, but also help to meet the user's emotional value needs for sound experience, thereby improving the user's experience.

[0048] In actual use, the sound signal collected above can also be quantitatively displayed, for example, the collected sound signal is converted into data and displayed to the user, which can give the user a more intuitive sound experience. Therefore, in an embodiment of the present invention, after collecting the sound signal, the sound digital signal corresponding to the sound signal can also be extracted, and the sound digital signal can be converted into a sound analog signal; then the numerical value corresponding to the sound analog signal is sent to the display terminal for display through the display terminal.

[0049] Specifically, this process can also be called a sound display calculation process. Correspondingly, in the above step S204, the process of calculating the sound objective value and the sound quality subjective value can be called a sound objective value calculation process and a sound quality subjective value calculation process.

[0050] Correspondingly, the above three calculation processes can be executed simultaneously after the sound signal is collected in step S202. Therefore, in actual use, the algorithms used in the three calculation processes can be integrated into a sound field calculation model, so that after the sound signal is collected, the sound field calculation model can be triggered to execute the above three calculation processes simultaneously.

[0051] For ease of understanding, Figure 2 On the basis of Figure 3 A flow chart of another range hood control method is also shown, which further explains the above three calculation processes and the subsequent sound field control process. Figure 3 As shown, the following steps are included:

[0052] After the range hood is started, the control function can be turned on automatically, or the control function can be turned on when triggered by the user. At this time, the range hood can respond, that is, execute the following steps.

[0053] Step S302, in response to the start of the control function, collecting sound signals of the environment in which the range hood is located;

[0054] Step S304, calling the sound field calculation model to calculate the sound simulation signal, the sound objective value and the sound quality subjective value;

[0055] Specifically, in this process, the calculation process of the sound field calculation model includes: sound display calculation, sound objective value calculation and sound quality subjective value calculation. Figure 3 As shown, specifically including the following:

[0056] (1) Sound display calculation:

[0057] The controller transmits the sound signal to the sound field calculation model, which extracts the sound digital signal and converts it into a sound analog signal through a digital-to-analog conversion algorithm. The controller transmits the numerical value corresponding to the sound analog signal to a display terminal, such as the screen display terminal of the range hood or the graphical user interface of the user terminal, so that the display terminal displays the numerical value corresponding to the sound analog signal, such as the sound pressure value, etc. Then, during the cooking process, the user can view the kitchen sound field in real time through the display terminal, and customize the sound field according to the sound field conditions to obtain a more acceptable sound field, etc.

[0058] (2) Calculation of objective sound value:

[0059] Specifically, in an embodiment of the present invention, when calculating the objective sound value corresponding to a sound signal, the sound field calculation model can extract the sound digital signal corresponding to the sound signal; then calculate the time domain sound pressure value corresponding to the sound digital signal according to the pre-configured time domain sound pressure algorithm; perform frequency domain conversion on the time domain sound pressure value to obtain the corresponding frequency domain sound pressure value; then determine the frequency domain sound pressure value as the objective sound value corresponding to the sound signal. This is because the frequency domain sound pressure value, such as the frequency decibel of the sound, etc., is more easily associated with human senses. Therefore, in an embodiment of the present invention, the frequency domain sound pressure value is used as the objective sound value corresponding to the sound signal.

[0060] (3) Calculation of subjective value of sound quality:

[0061] Specifically, in an embodiment of the present invention, calculating the subjective sound quality value corresponding to the sound signal includes: extracting a sound digital signal corresponding to the sound signal; extracting the objective sound quality value corresponding to the sound signal based on the sound digital signal by a sound field calculation model, wherein the objective sound quality value in the embodiment of the present invention includes at least loudness, roughness, and sharpness of the sound signal; and then inputting the objective sound quality value into a pre-trained first neural network model, and obtaining the subjective sound quality value corresponding to the objective sound quality value by fitting the first neural network model;

[0062] Among them, the training samples for training the first neural network model are objective value samples of sound quality marked with subjective value labels of sound quality. For example, in actual use, the above-mentioned training samples can be prepared in advance, and the training samples can be the loudness, roughness, sharpness, and corresponding subjective labels of the sound signals generated under any working conditions; the subjective labels are usually digital representations of subjective values, that is, the subjective perception values ​​of people under different loudness, roughness, and sharpness. For example, the higher the value, the more annoyed the person is, and the lower the value, the lower the annoyance of the person, and so on. In this way, the training samples are constructed to train the initialized neural network model. After the training is completed, the first neural network model in the embodiment of the present invention can be obtained. When the parameters such as loudness, roughness, and sharpness included in the objective value of sound quality are input, the first neural network model can be used for fitting, and then the subjective value of sound quality in the embodiment of the present invention can be obtained.

[0063] The specific training samples, as well as the structure and training process of the initialized neural network model can be set according to actual usage, and the embodiment of the present invention does not limit this.

[0064] Furthermore, corresponding to the above-mentioned sound field calculation model, in an embodiment of the present invention, a sound field judgment model can also be constructed to determine whether the sound signal meets the pre-configured control threshold. Therefore, after the above-mentioned sound field calculation model obtains the objective sound value including the frequency domain sound pressure value and the subjective sound quality value, it is further transmitted to the sound field judgment model for further judgment.

[0065] Specifically, the steps include:

[0066] Step S306, calling the sound field determination model to determine whether the sound signal meets the pre-configured control threshold; if yes, returning to step S302, the sound signal of the next cycle can be re-collected, if not, executing step S308.

[0067] In this process, the sound field judgment model needs to determine whether the objective value of the sound meets the pre-configured objective threshold, and whether the subjective value of the sound quality meets the pre-configured subjective threshold; if both are satisfied, it is determined that the sound signal meets the pre-configured control threshold; if any one is not satisfied, it is determined that the sound signal at this time does not meet the pre-configured control threshold.

[0068] For example, if the frequency domain sound pressure value exceeds a pre-configured objective threshold, or the sound quality subjective value exceeds a pre-configured subjective threshold, it means that the sound field at this time may cause annoyance or discomfort to the user, that is, the noise is too loud and affects the user's senses, so further regulation is needed.

[0069] In actual use, the determination process of the above-mentioned sound field determination model can be divided into adaptive determination and user-defined determination, wherein the adaptive determination is a situation without user intervention, and is based on the thresholds (objective thresholds and subjective thresholds) set in the sound field determination model, and the user-defined determination is based on user-defined thresholds, that is, the above-mentioned objective thresholds and subjective thresholds can be set by designers according to experience or experimental values ​​during the design phase, and can also be set by users according to their own sensitivity to sound or noise during use, that is, users can customize objective thresholds and subjective thresholds so that the sound field control process of the range hood can better meet their own personalized needs.

[0070] Therefore, the range hood control method provided in the embodiment of the present invention can also respond to a configuration operation, which is an operation to configure the objective threshold and / or subjective threshold mentioned above; then extract the configuration parameters corresponding to the configuration operation; in response to the completion of the configuration operation, update the objective threshold and / or subjective threshold based on the configuration parameters. That is, the user can configure the objective threshold or the subjective threshold separately, or configure the objective threshold and the subjective threshold at the same time, which is subject to actual use, and the embodiment of the present invention does not limit this.

[0071] Step S308, inputting the sound objective value and the sound quality subjective value into a pre-trained second neural network model, and extracting the main contributing factors from the sound objective value and the sound quality subjective value through the second neural network model;

[0072] Among them, in the embodiment of the present invention, the training samples for training the above-mentioned second neural network model are samples marked with labels of main contributing factors, and the samples are constructed based on the objective value of sound and the subjective value of sound quality.

[0073] In actual use, it is also possible to collect sound signals generated under any working conditions to construct training samples. For example, each training sample includes frequency domain sound pressure value, loudness, roughness, sharpness and other elements, and in the training sample, which specific element has a greater impact on human perception, that is, a corresponding label is marked on the element, indicating that the element is the main contributing factor. In this way, training samples are constructed to train the initialized neural network model. After the training is completed, the second neural network model in the embodiment of the present invention can be obtained. When the various parameters included in the objective value of the sound and the subjective value of the sound quality are input, the above-mentioned main contributing factors can be obtained through the second neural network model, as well as the specific data corresponding to the main contributing factors.

[0074] For example, the main contributing factor is loudness, and the corresponding frequency band or frequency is 100HZ, etc. Furthermore, after obtaining the main contributing factor, the regulated sound field can be further generated according to the main contributing factor, such as a sound field signal with the same loudness and the same frequency but inverse phase, so as to regulate the current sound field.

[0075] Specifically, the steps include:

[0076] Step S310, inputting the main contributing factors into a pre-trained third neural network model, and generating parameters for regulating the sound field through the third neural network model;

[0077] Step S312, generating a control sound field based on the parameters of the control sound field;

[0078] Step S314: play the regulated sound field to regulate the sound field corresponding to the sound signal.

[0079] Among them, the regulated sound field is a sound field signal with a phase opposite to that of the sound signal; and the third neural network model is a pre-trained neural network model with a filtering reverse calculation function.

[0080] After step S314 is executed, the entire control process ends.

[0081] In actual use, the process of generating the control sound field in the above steps S310 to S312 can be configured as a sound field generation model, that is, the sound field generation model can include the algorithm corresponding to the above third neural network model. At the same time, the sound field generation model can also adaptively generate the parameters of the control sound field based on the main contributing factors, or generate the control sound field based on the main contributing factors and with reference to some sound pressure values ​​or sound quality subjective values ​​defined by the user, etc., to obtain a control sound field that is relatively satisfactory to the user or has a higher experience. The specific user-defined parameters of the control sound field can be set according to the actual usage situation, and the embodiment of the present invention does not limit this.

[0082] Furthermore, for the third neural network model, corresponding training samples can also be pre-constructed. For example, for the main contributing factors under any working condition, the corresponding parameters of the control sound field are marked with matching, which are used to generate the same-frequency sound signal with the opposite phase to offset or eliminate the actual sound signal, etc. Therefore, the third neural network model can also be called a network model for filtering and reverse calculation. The control sound field generated by the network model can filter and reversely eliminate the main contributing factors in the sound signal. The specific third neural network model can be configured according to the actual usage, and the embodiment of the present invention is not limited to this.

[0083] In actual use, the above-mentioned sound field calculation model, sound field judgment model and sound field generation model can be called a sound field AI model, that is, the range hood control method provided in the embodiment of the present invention can monitor the kitchen environment noise in real time, and transmit the sound signal corresponding to the noise to the controller, so that the sound field AI model in the controller can judge the noise size and sound quality. For the sound field exceeding the threshold, the sound field AI model can output the regulated sound field, and enable the controller to control the speaker to emit the sound signal corresponding to the regulated sound field, thereby realizing the active regulation of the noise sound field in the kitchen environment.

[0084] Further, based on the above embodiment, the embodiment of the present invention also provides a control device for a range hood, which is applied to a range hood, such as Figure 4 A schematic diagram of a control device for a range hood is shown, the device comprising:

[0085] The collection module 41 is used to collect the sound signal of the environment where the range hood is located in response to the activation of the control function;

[0086] A calculation module 42, used to calculate the sound objective value and the sound quality subjective value corresponding to the sound signal, wherein the sound objective value is used to characterize the objective characteristics of the sound signal, and the sound quality subjective value is used to characterize the subjective characteristics of the sound signal;

[0087] A judgment module 43, used to judge whether the sound signal meets a pre-configured control threshold based on the objective value of the sound and the subjective value of the sound quality;

[0088] An extraction module 44, used to extract the main contributing factors corresponding to the objective value of the sound and the subjective value of the sound quality when the judgment result of the judgment module is no;

[0089] The control module 45 is used to generate a control sound field based on the main contributing factors; and play the control sound field to control the sound field corresponding to the sound signal.

[0090] Furthermore, an embodiment of the present invention also provides a range hood, the controller of which is configured with the above-mentioned range hood control device; wherein the range hood is configured with a microphone and a speaker connected to the controller; the microphone is used to collect sound signals of the environment in which the range hood is located; and the speaker is used to play the control sound field.

[0091] The range hood control device and the range hood provided in the embodiments of the present invention have the same technical features as the range hood control method provided in the above embodiments, and therefore can also solve the same technical problems and achieve the same technical effects.

[0092] Furthermore, an embodiment of the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0093] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above method are executed.

[0094] Furthermore, an embodiment of the present invention also provides a structural diagram of an electronic device, such as Figure 5 As shown, it is a schematic diagram of the structure of the electronic device, wherein the electronic device includes a processor 51 and a memory 50, the memory 50 stores computer executable instructions that can be executed by the processor 51, and the processor 51 executes the computer executable instructions to implement the above method.

[0095] exist Figure 5 In the illustrated embodiment, the electronic device further includes a bus 52 and a communication interface 53 , wherein the processor 51 , the communication interface 53 and the memory 50 are connected via the bus 52 .

[0096] Among them, the memory 50 may include a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk storage. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 53 (which can be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. can be used. The bus 52 can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus 52 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0097] The processor 51 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 51 or the instruction in the form of software. The above processor 51 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor 51 reads the information in the memory and completes the above method in combination with its hardware.

[0098] The computer program product of the range hood and its control method and device provided in the embodiments of the present invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the method in the previous method embodiment. The specific implementation can be found in the method embodiment, which will not be repeated here.

[0099] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the range hood and the device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0100] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0101] If the above functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0102] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0103] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for controlling a range hood, characterized in that: The method is applied to a range hood, and comprises: In response to the activation of the control function, a sound signal of the environment in which the range hood is located is collected; Calculating a sound objective value and a sound quality subjective value corresponding to the sound signal, wherein the sound objective value is used to characterize the objective characteristics of the sound signal, and the sound quality subjective value is used to characterize the subjective characteristics of the sound signal; Determining whether the sound signal meets a pre-configured control threshold based on the sound objective value and the sound quality subjective value; If not, extracting main contributing factors corresponding to the objective value of the sound and the subjective value of the sound quality; Generate a regulated sound field based on the main contributing factors; The regulated sound field is played to regulate the sound field corresponding to the sound signal.

2. The method according to claim 1, characterized in that The method further comprises: Extracting a sound digital signal corresponding to the sound signal, and converting the sound digital signal into a sound analog signal; The numerical value corresponding to the sound analog signal is sent to a display terminal for display via the display terminal.

3. The method according to claim 1, characterized in that The step of calculating the sound objective value corresponding to the sound signal comprises: Extracting a sound digital signal corresponding to the sound signal; Calculating the time-domain sound pressure value corresponding to the sound digital signal according to a pre-configured time-domain sound pressure algorithm; Performing frequency domain conversion on the time domain sound pressure value to obtain a corresponding frequency domain sound pressure value; The frequency domain sound pressure value is determined as the sound objective value corresponding to the sound signal.

4. The method according to claim 1, characterized in that: The step of calculating the sound quality subjective value corresponding to the sound signal comprises: Extracting a sound digital signal corresponding to the sound signal; Extracting an objective sound quality value corresponding to the sound signal based on the sound digital signal, wherein the objective sound quality value includes at least loudness, roughness, and sharpness of the sound signal; The objective sound quality value is input into a pre-trained first neural network model, and the subjective sound quality value corresponding to the objective sound quality value is obtained by fitting the first neural network model; wherein the training samples for training the first neural network model are objective sound quality value samples marked with sound quality subjective value labels.

5. The method according to claim 1, characterized in that The step of judging whether the sound signal meets a pre-configured control threshold based on the sound objective value and the sound quality subjective value includes: Determining whether the objective value of the sound meets a pre-configured objective threshold, and whether the subjective value of the sound quality meets a pre-configured subjective threshold; If all of them are satisfied, it is determined that the sound signal satisfies the pre-configured control threshold; If any one of them is not satisfied, it is determined that the sound signal does not meet the pre-configured control threshold.

6. The method according to claim 1, characterized in that The step of extracting the main contributing factors corresponding to the objective value of the sound and the subjective value of the sound quality comprises: Inputting the objective sound value and the subjective sound quality value into a pre-trained second neural network model, and extracting main contributing factors from the objective sound value and the subjective sound quality value through the second neural network model; The training samples for training the second neural network model are samples marked with labels of main contributing factors, and the samples are constructed based on the objective value of the sound and the subjective value of the sound quality.

7. The method according to claim 1, characterized in that The step of generating a control sound field based on the main contributing factors comprises: Inputting the main contributing factors into a pre-trained third neural network model, and generating the parameters for regulating the sound field through the third neural network model; Wherein, the regulated sound field is a sound field signal with a phase opposite to that of the sound signal; the third neural network model is a pre-trained neural network model with a filtering reverse calculation function; The regulated sound field is generated based on the parameters of the regulated sound field.

8. The method according to claim 5, characterized in that The method further comprises: Responding to a configuration operation, wherein the configuration operation is an operation of configuring the objective threshold and / or the subjective threshold; Extracting configuration parameters corresponding to the configuration operation; In response to the configuration operation being completed, the objective threshold and / or the subjective threshold is updated based on the configuration parameters.

9. A control device for a range hood, characterized in that: The device is applied to a range hood, and comprises: A collection module (41), used for collecting sound signals of the environment in which the range hood is located in response to the activation of the control function; A calculation module (42), used for calculating an objective sound value and a subjective sound quality value corresponding to the sound signal, wherein the objective sound value is used to characterize the objective characteristics of the sound signal, and the subjective sound quality value is used to characterize the subjective characteristics of the sound signal; A judgment module (43), configured to judge whether the sound signal satisfies a pre-configured control threshold based on the objective sound value and the subjective sound quality value; An extraction module (44), configured to extract main contributing factors corresponding to the objective value of the sound and the subjective value of the sound quality when the judgment result of the judgment module is negative; A control module (45) is used to generate a control sound field based on the main contribution factors; and play the control sound field to control the sound field corresponding to the sound signal.

10. A range hood, characterized in that: The controller of the range hood is equipped with the range hood control device according to claim 9; The range hood is equipped with a microphone and a speaker connected to the controller; The microphone is used to collect sound signals of the environment in which the range hood is located; The loudspeaker is used for playing and regulating the sound field.

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