Plasma generator, related noise reduction method, device, equipment and medium

Abstract

The embodiment of the invention provides a plasma generator, a related noise reduction method, a related noise reduction device, related noise reduction equipment and a medium, and the method comprises the steps: in the operation process of a plasma generation device, obtaining first audio data obtained by collecting noise generated by the plasma generation device from a sound pickup; generating second audio data for offsetting the first audio data; and controlling the loudspeaker to play the second audio data. According to the embodiment of the invention, the audio data used for cancelling the noise can be generated and played, so that the noise generated by the plasma generator in the environment can be cancelled; therefore, the noise generated in the plasma generation process of the operation of the plasma generator is effectively inhibited.

Description

Technical Field

[0001] The present invention relates to the technical field of plasma generators, and in particular to a noise reduction method for a plasma generator, a noise reduction device for a plasma generator, a plasma generator, an electronic device and a computer-readable storage medium. Background Art

[0002] Air pollution is mainly caused by industrial production and transportation emissions, including particulate pollutants such as dust, smoke, and fog, as well as gaseous pollutants such as sulfur dioxide and carbon monoxide.

[0003] As people's living standards improve, in order to reduce and solve the problem of air pollution and improve air quality, more and more air purification devices are being developed, such as plasma generators.

[0004] In the related art, the excitation signal of the plasma generator when producing plasma gas can be intelligently adjusted according to the environmental conditions to achieve dynamic intelligent adjustment. The frequency is dynamic, which is beneficial for controlling the generated signal, but at the same time it will produce noise due to the frequency conversion; in a quiet environment, the noise generated by the plasma generator will make people feel uncomfortable. Summary of the invention

[0005] In view of the above problems, a plasma generator noise reduction method, a plasma generator noise reduction device, a plasma generator, an electronic device and a computer-readable storage medium are proposed to overcome the above problems or at least partially solve the above problems, including:

[0006] A method for reducing noise of a plasma generator, wherein the plasma generator comprises a plasma generating device, a pickup and a speaker; the plasma generating device is used to generate plasma gas; the method comprises:

[0007] During the operation of the plasma generating device, first audio data obtained by collecting noise generated by the plasma generating device is obtained from the microphone;

[0008] generating second audio data for cancelling the first audio data;

[0009] The speaker is controlled to play the second audio data.

[0010] Optionally, the method further comprises:

[0011] When the plasma generator is started, the plasma generating device is driven by a driving signal of a first frequency;

[0012] When the volume of the first audio data exceeds a preset decibel value, the plasma generating device is driven by a driving signal of a second frequency; the first frequency is greater than the second frequency.

[0013] Optionally, the generating the second audio data for cancelling the first audio data comprises:

[0014] Second audio data having a phase opposite to that of the first audio data is generated.

[0015] Optionally, before controlling the speaker to play the second audio data, the method further includes:

[0016] Detecting whether there is a need to reduce noise generated by the plasma generating device;

[0017] When there is no noise reduction requirement, stop controlling the speaker to play the second audio data.

[0018] Optionally, the detecting whether there is a need to reduce noise generated by the plasma generating device includes:

[0019] Acquire third audio data collected from environmental noise in an environment where the plasma generator is located;

[0020] When the volume of the third audio data is greater than the volume of the second audio data, determining that there is no need to reduce the noise generated by the plasma generating device;

[0021] When the volume of the third audio data is lower than the volume of the second audio data, it is determined that there is no need to reduce the noise generated by the plasma generating device.

[0022] Optionally, the detecting whether there is a need to reduce noise generated by the plasma generating device includes:

[0023] When the environment where the plasma generator is located is in an unmanned state, it is determined that there is no need to reduce the noise generated by the plasma generator.

[0024] Optionally, the detecting whether there is a need to reduce noise generated by the plasma generating device includes:

[0025] In a first time period, determining that there is a need to reduce noise generated by the plasma generating device;

[0026] In the second time period, it is determined that there is no need to reduce the noise generated by the plasma generating device.

[0027] The embodiment of the present invention further provides a plasma generator, the plasma generator comprising: a plasma generating device, a controller, a pickup and a speaker;

[0028] The plasma generating device is used to generate plasma gas;

[0029] The microphone is used to collect the noise generated by the plasma generating device and generate first audio data;

[0030] The controller is used to obtain first audio data collected from the microphone for noise generated by the plasma generating device during the operation of the plasma generating device; generate second audio data for offsetting the first audio data; and control the speaker to play the second audio data.

[0031] Optionally, the plasma generator further comprises:

[0032] A shell, wherein an air inlet is disposed at the bottom of the shell, and an air outlet is disposed at the top of the shell;

[0033] An air inlet motor is arranged at the air inlet;

[0034] The air outlet motor is arranged at the air outlet.

[0035] The embodiment of the present invention further provides a noise reduction device for a plasma generator, wherein the plasma generator comprises a plasma generating device, a pickup and a speaker; the plasma generating device is used to generate plasma gas; the device comprises:

[0036] A collection module, used for acquiring first audio data obtained by collecting noise generated by the plasma generating device from the microphone during the operation of the plasma generating device;

[0037] A generating module, used for generating second audio data for canceling the first audio data;

[0038] The control module is used to control the speaker to play the second audio data.

[0039] Optionally, the device further comprises:

[0040] A driving module is used to drive the plasma generating device with a driving signal of a first frequency when the plasma generator is started; when the volume of the first audio data exceeds a preset decibel value, drive the plasma generating device with a driving signal of a second frequency; the first frequency is greater than the second frequency.

[0041] Optionally, the generating module is used to generate second audio data having a phase opposite to that of the first audio data.

[0042] Optionally, the control module is used to detect whether there is a need for noise reduction for the noise generated by the plasma generating device before controlling the speaker to play the second audio data; when there is no noise reduction need, stop controlling the speaker to play the second audio data.

[0043] Optionally, the control module is used to obtain third audio data collected from the ambient noise in the environment where the plasma generator is located; when the volume of the third audio data is greater than the volume of the second audio data, it is determined that there is no need for noise reduction for the noise generated by the plasma generating device; when the volume of the third audio data is less than the volume of the second audio data, it is determined that there is no need for noise reduction for the noise generated by the plasma generating device.

[0044] Optionally, the control module is used to determine that there is no need to reduce the noise generated by the plasma generating device when the environment where the plasma generator is located is in an unmanned state.

[0045] Optionally, the control module is used to determine whether there is a need to reduce the noise generated by the plasma generating device in a first time period; and determine whether there is no need to reduce the noise generated by the plasma generating device in a second time period.

[0046] An embodiment of the present invention further provides an electronic device, comprising a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein the computer program implements the above-mentioned plasma generator noise reduction method when executed by the processor.

[0047] 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 above-mentioned noise reduction method for a plasma generator is implemented.

[0048] The embodiments of the present invention have the following advantages:

[0049] In the embodiment of the present invention, during the operation of the plasma generator, first audio data obtained by collecting the noise generated by the plasma generator is obtained from the microphone; second audio data for canceling the first audio data is generated; and the speaker is controlled to play the second audio data. Through the embodiment of the present invention, the noise generated by the plasma generator in the environment can be canceled by generating audio data for canceling the noise and playing the audio data; thereby effectively suppressing the noise generated during the operation of the plasma generator to generate plasma. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0051] Figure 1 is a flowchart of a method for reducing noise of a plasma generator according to an embodiment of the present invention;

[0052] Figure 2 is a flowchart of another method for reducing noise of a plasma generator according to an embodiment of the present invention;

[0053] Figure 3 is a flowchart of another method for reducing noise of a plasma generator according to an embodiment of the present invention;

[0054] Figure 4 is a flowchart of another method for reducing noise of a plasma generator according to an embodiment of the present invention;

[0055] Figure 5 is a flowchart of another method for reducing noise of a plasma generator according to an embodiment of the present invention;

[0056] Figure 6 is a flowchart of another method for reducing noise of a plasma generator according to an embodiment of the present invention;

[0057] Figure 7 is a schematic structural diagram of a plasma generator according to an embodiment of the present invention;

[0058] Figure 8 is a schematic structural diagram of a plasma generator according to an embodiment of the present invention;

[0059] Fig. 9 is a flowchart of noise reduction steps in an embodiment of the present invention;

[0060] Fig.10 It is a structural schematic diagram of a noise reduction device for a plasma generator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0061] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] In order to prevent the noise generated by the plasma generator from affecting the user, an embodiment of the present invention provides a noise reduction method for a plasma generator; the method can offset the noise generated by the plasma generator in the environment by generating audio data for offsetting the noise and playing the audio data; thereby effectively suppressing the noise generated in the process of the plasma generator generating plasma.

[0063] For details, please refer to Figure 1 , shows a step flow chart of a noise reduction method for a plasma generator according to an embodiment of the present invention.

[0064] like Figure 1 As shown, the noise reduction method of the plasma generator may include the following steps:

[0065] Step 101 : During the operation of a plasma generating device, first audio data obtained by collecting noise generated by the plasma generating device is obtained from a microphone.

[0066] In practical applications, the plasma generator may include a plasma generating device, a microphone and a speaker; wherein the plasma generating device may be used to generate plasma gas, the microphone may be used to collect sounds in the environment and generate corresponding audio data, and the speaker may be used to play audio data.

[0067] Exemplarily, the plasma generator may be a variable frequency device, which can automatically adjust the operating frequency according to environmental conditions, thereby achieving more precise control and higher energy efficiency.

[0068] In the embodiment of the present invention, when the plasma generator is in operation, the controller in the plasma generator may obtain, from the microphone, first audio data obtained by the microphone from collecting noise generated by the plasma generator.

[0069] Exemplarily, the microphone can continuously collect the noise generated by the plasma generating device during the operation of the plasma generating device, and generate corresponding first audio data to send to the controller.

[0070] Step 102: Generate second audio data for canceling the first audio data.

[0071] After receiving the first audio data, the controller can analyze and convert it, and generate second audio data that can be used to offset the noise corresponding to the first audio data; the second audio data is audio data that can offset the noise generated by the current plasma generating device.

[0072] Step 103: Control the speaker to play the second audio data.

[0073] Next, the controller can control the speaker to play the second audio data to play the sound corresponding to the second audio data in the environment to offset the noise generated by the plasma generating device during operation in the environment, thereby offsetting the impact of the noise generated by the plasma generating device during operation on the user.

[0074] In the embodiment of the present invention, during the operation of the plasma generator, first audio data obtained by collecting the noise generated by the plasma generator is obtained from the microphone; second audio data for canceling the first audio data is generated; and the speaker is controlled to play the second audio data. Through the embodiment of the present invention, the noise generated by the plasma generator in the environment can be canceled by generating audio data for canceling the noise and playing the audio data; thereby effectively suppressing the noise generated during the operation of the plasma generator to generate plasma.

[0075] Reference Figure 2 , shows a flowchart of another method for reducing noise of a plasma generator according to an embodiment of the present invention, which may include the following steps:

[0076] Step 201 : During the operation of a plasma generating device, first audio data collected from a microphone is obtained by collecting noise generated by the plasma generating device.

[0077] When the plasma generator is in operation, the controller in the plasma generator may obtain, from the microphone, first audio data obtained by the microphone from noise generated by the plasma generator.

[0078] Exemplarily, the microphone can continuously collect the noise generated by the plasma generating device during the operation of the plasma generating device, and generate corresponding first audio data to send to the controller.

[0079] Step 202: Generate second audio data with a phase opposite to that of the first audio data.

[0080] After receiving the first audio data, the controller may analyze and convert the first audio data and generate second audio data that can be used to offset the first audio data. Specifically, the controller may generate the second audio data with a phase opposite to that of the first audio data.

[0081] For example, noise can be canceled by generating a sound wave with a phase opposite to that of the noise. This process can be described by the following formula:

[0082] y(t)=-H(x(t))

[0083] in:

[0084] y(t) is the generated noise reduction signal, that is, the first audio data.

[0085] x(t) is the detected noise signal, ie, the second audio data.

[0086] H is a transfer function that is used to generate a signal that is in phase opposite to the noise signal.

[0087] Specifically, the controller's workflow is as follows:

[0088] Noise detection: The microphone detects the noise signal x(t) in the environment.

[0089] Signal processing: The controller processes the noise signal according to the transfer function H and generates a signal y(t) with opposite phase.

[0090] The design of the transfer function H depends on many factors, including the frequency response and phase characteristics of the system. Common design methods include:

[0091] Adaptive filter: Uses an adaptive algorithm (such as the LMS algorithm) to dynamically adjust the transfer function to better match the actual noise environment.

[0092] Fixed filter: A pre-designed filter that is suitable for a specific type of noise.

[0093] Assuming that the Fourier transform of the noise signal x(t) is X(f), the Fourier transform Y(f) of the generated noise-reduced signal y(t) can be expressed as:

[0094] Y(f)=-H(f)·X(f)

[0095] Where H(f) is the representation of the transfer function in the frequency domain.

[0096] Step 203: Control the speaker to play the second audio data.

[0097] After generating the second audio data, the controller can control the speaker to play the second audio data, so as to play the sound corresponding to the second audio data in the environment to offset the noise generated by the plasma generating device during operation in the environment, thereby offsetting the impact of the noise generated by the plasma generating device during operation on the user.

[0098] In an embodiment of the present invention, the above method may further include the following steps:

[0099] When the plasma generator is started, the plasma generating device is driven by a driving signal of a first frequency; when the volume of the first audio data exceeds a preset decibel value, the plasma generating device is driven by a driving signal of a second frequency; the first frequency is greater than the second frequency.

[0100] In some feasible embodiments, when the plasma generator is started, the controller may drive the plasma generating device with a driving signal of a first frequency; specifically, the controller may generate a driving signal of a first frequency, for example, 20KHZ, when the plasma generator is started.

[0101] Then, the driving module can convert it into an electrical control signal for driving the plasma generating device to drive the plasma device to generate plasma gas.

[0102] When it is detected that the volume of the first audio data exceeds a preset decibel value, for example, 35db, the controller can drive the plasma generating device with a driving signal of a second frequency; illustratively, the second frequency can be 2KHZ, which is not limited in this embodiment of the present invention.

[0103] In the embodiment of the present invention, during the operation of the plasma generator, first audio data obtained by collecting the noise generated by the plasma generator is obtained from the microphone; second audio data with a phase opposite to the first audio data is generated; and the speaker is controlled to play the second audio data. Through the embodiment of the present invention, the noise generated by the plasma generator in the environment can be offset by generating audio data for offsetting the noise and playing the audio data; thereby effectively suppressing the noise generated by the plasma generator during the operation of the plasma generator to generate plasma.

[0104] Furthermore, when the noise of the plasma generator is relatively large, the volume of the noise generated by the plasma generator can be reduced by lowering the operating frequency of the plasma generator.

[0105] Reference Figure 3 , shows a flowchart of another method for reducing noise of a plasma generator according to an embodiment of the present invention, which may include the following steps:

[0106] Step 301: During the operation of a plasma generating device, first audio data obtained by collecting noise generated by the plasma generating device is obtained from a microphone.

[0107] When the plasma generator is in operation, the controller in the plasma generator may obtain, from the microphone, first audio data obtained by the microphone from noise generated by the plasma generator.

[0108] Exemplarily, the microphone can continuously collect the noise generated by the plasma generating device during the operation of the plasma generating device, and generate corresponding first audio data to send to the controller.

[0109] Step 302: Generate second audio data with a phase opposite to that of the first audio data.

[0110] After receiving the first audio data, the controller may analyze and convert the first audio data and generate second audio data that can be used to offset the first audio data. Specifically, the controller may generate the second audio data with a phase opposite to that of the first audio data.

[0111] Step 303: Detect whether there is a need to reduce noise generated by the plasma generating device.

[0112] In some feasible embodiments, before performing noise reduction, it is also possible to first detect whether there is a need for noise reduction for the noise generated by the plasma generator; that is, whether it is necessary to reduce the noise generated by the plasma generator. For example, when there is no one in the environment where the plasma generator is located, the imaging generated by the plasma generator will not affect the user, and noise reduction may not be performed at this time to save resources.

[0113] Step 304: When there is no noise reduction requirement, stop controlling the speaker to play the second audio data.

[0114] Based on this, when it is determined that there is no noise reduction demand at present, the speaker can be stopped from being controlled to play the second audio data until there is a noise reduction demand.

[0115] Step 305: When there is a noise reduction requirement, control the speaker to play the second audio data.

[0116] On the contrary, if it is determined that there is a noise reduction demand currently, the speaker can be controlled to play the second audio data to perform noise reduction processing on the noise generated by the plasma generating device.

[0117] In the embodiment of the present invention, during the operation of the plasma generator, first audio data obtained by collecting the noise generated by the plasma generator is obtained from the microphone; second audio data with a phase opposite to the first audio data is generated; whether there is a need for noise reduction for the noise generated by the plasma generator is detected; when there is no need for noise reduction, the speaker is stopped from playing the second audio data; when there is a need for noise reduction, the speaker is controlled to play the second audio data. Through the embodiment of the present invention, the noise generated by the plasma generator in the environment can be offset by generating audio data for offsetting the noise and playing the audio data; thereby effectively suppressing the noise generated by the plasma generator during the operation of the plasma generator to generate plasma.

[0118] Furthermore, the noise generated by the plasma generating device is reduced only when there is a need for noise reduction, thereby effectively avoiding waste of resources.

[0119] Reference Figure 4 , shows a flowchart of another method for reducing noise of a plasma generator according to an embodiment of the present invention, which may include the following steps:

[0120] Step 401: During the operation of the plasma generating device, first audio data obtained by collecting noise generated by the plasma generating device is obtained from a microphone.

[0121] When the plasma generator is in operation, the controller in the plasma generator may obtain, from the microphone, first audio data obtained by the microphone from noise generated by the plasma generator.

[0122] Step 402: Generate second audio data with a phase opposite to that of the first audio data.

[0123] After receiving the first audio data, the controller may analyze and convert the first audio data and generate second audio data that can be used to offset the first audio data. Specifically, the controller may generate the second audio data with a phase opposite to that of the first audio data.

[0124] Step 403: Acquire third audio data collected from the ambient noise in the environment where the plasma generator is located.

[0125] In some feasible embodiments, third audio data collected from the environmental noise in the environment where the plasma generator is located may be additionally obtained; the third audio data is audio data collected from other noises in the environment except the noise generated by the plasma generator.

[0126] Step 404: When the volume of the third audio data is greater than the volume of the second audio data, it is determined that there is no need to reduce the noise generated by the plasma generating device.

[0127] After obtaining the third audio data, it can be detected whether the volume of the third audio data is greater than the volume of the second audio data, so as to determine whether it is still necessary to reduce the noise generated by the plasma generating device.

[0128] Specifically, when the volume of the third audio data is greater than the volume of the second audio data, it can be considered that the ambient noise is already very loud at this time, and what the user perceives is the ambient noise rather than the noise generated by the plasma generator; therefore, no noise reduction is performed on the noise generated by the plasma generator at this time, that is, it can be determined that there is currently no need to reduce the noise generated by the plasma generator.

[0129] Step 405: When the volume of the third audio data is lower than the volume of the second audio data, it is determined that there is no need to reduce the noise generated by the plasma generating device.

[0130] On the contrary, if the volume of the third audio data is smaller than the volume of the second audio data, it can be considered that the ambient noise is smaller at this time, and what the user perceives is the noise generated by the plasma generator; therefore, the noise generated by the plasma generator can be reduced at this time, that is, it can be determined that there is currently a need for noise reduction for the noise generated by the plasma generator.

[0131] Step 406: When there is no noise reduction requirement, stop controlling the speaker to play the second audio data.

[0132] When it is determined that there is no noise reduction demand at present, the control of the speaker to play the second audio data may be stopped until there is a noise reduction demand.

[0133] Step 407: When there is a noise reduction requirement, control the speaker to play the second audio data.

[0134] On the contrary, if it is determined that there is a noise reduction demand currently, the speaker can be controlled to play the second audio data to perform noise reduction processing on the noise generated by the plasma generating device.

[0135] In an embodiment of the present invention, during the operation of the plasma generator, first audio data obtained by collecting the noise generated by the plasma generator is obtained from the microphone; second audio data with a phase opposite to the first audio data is generated; third audio data obtained by collecting the environmental noise in the environment where the plasma generator is located is obtained; when the volume of the third audio data is greater than the volume of the second audio data, it is determined that there is no need for noise reduction for the noise generated by the plasma generator; when the volume of the third audio data is less than the volume of the second audio data, it is determined that there is no need for noise reduction for the noise generated by the plasma generator; when there is no need for noise reduction, stop controlling the speaker to play the second audio data; when there is a need for noise reduction, control the speaker to play the second audio data. Through the embodiment of the present invention, the noise generated by the plasma generator in the environment can be offset by generating audio data for offsetting the noise and playing the audio data; thereby effectively suppressing the noise generated in the process of the plasma generator generating plasma.

[0136] Furthermore, the noise generated by the plasma generating device is reduced only when there is a need for noise reduction, thereby effectively avoiding waste of resources.

[0137] Reference Figure 5 , shows a flowchart of another method for reducing noise of a plasma generator according to an embodiment of the present invention, which may include the following steps:

[0138] Step 501: During the operation of a plasma generating device, first audio data obtained by collecting noise generated by the plasma generating device is obtained from a microphone.

[0139] When the plasma generator is in operation, the controller in the plasma generator may obtain, from the microphone, first audio data obtained by the microphone from noise generated by the plasma generator.

[0140] Step 502: Generate second audio data with a phase opposite to that of the first audio data.

[0141] After receiving the first audio data, the controller may analyze and convert the first audio data and generate second audio data that can be used to offset the first audio data. Specifically, the controller may generate the second audio data with a phase opposite to that of the first audio data.

[0142] Step 503: When the environment where the plasma generator is located is in an unmanned state, it is determined that there is no need to reduce the noise generated by the plasma generator.

[0143] In some feasible embodiments, when the controller detects that the environment where the plasma generator is located is in an unmanned state, that is, when there is no one in the environment, the controller may also determine that there is currently no need to reduce the noise generated by the plasma generator.

[0144] On the contrary, when it is detected that the environment where the plasma generator is located is in a human state, that is, when there are people in the environment, the controller can determine that there is currently a need to reduce noise generated by the plasma generator.

[0145] Exemplarily, it is possible to determine whether the environment where the plasma generator is located is in an unmanned state based on image data captured by an image acquisition device, or to determine whether the environment where the plasma generator is located is in an unmanned state based on whether there are human-related sounds (for example, the sound of a person talking, the sound of a person moving, etc.) in the first audio data generated by a microphone. This is not limited to this embodiment of the present invention.

[0146] Step 504: When there is no noise reduction requirement, stop controlling the speaker to play the second audio data.

[0147] When it is determined that there is no noise reduction demand at present, the control of the speaker to play the second audio data may be stopped until there is a noise reduction demand.

[0148] Step 505: When there is a noise reduction requirement, control the speaker to play the second audio data.

[0149] On the contrary, if it is determined that there is a noise reduction demand currently, the speaker can be controlled to play the second audio data to perform noise reduction processing on the noise generated by the plasma generating device.

[0150] In the embodiment of the present invention, during the operation of the plasma generator, first audio data obtained by collecting the noise generated by the plasma generator is obtained from the microphone; second audio data with a phase opposite to the first audio data is generated; when the environment where the plasma generator is located is in an unmanned state, it is determined that there is no need to reduce the noise generated by the plasma generator; when there is no need to reduce the noise, the speaker is stopped from playing the second audio data; when there is a need to reduce the noise, the speaker is controlled to play the second audio data. Through the embodiment of the present invention, the noise generated by the plasma generator in the environment can be offset by generating audio data for offsetting the noise and playing the audio data; thereby effectively suppressing the noise generated by the plasma generator during the operation of the plasma generator to generate plasma.

[0151] Furthermore, the noise generated by the plasma generating device is reduced only when there is a need for noise reduction, thereby effectively avoiding waste of resources.

[0152] Reference Figure 6 , shows a flowchart of another method for reducing noise of a plasma generator according to an embodiment of the present invention, which may include the following steps:

[0153] Step 601: During the operation of a plasma generating device, first audio data obtained by collecting noise generated by the plasma generating device is obtained from a microphone.

[0154] When the plasma generator is in operation, the controller in the plasma generator may obtain, from the microphone, first audio data obtained by the microphone from noise generated by the plasma generator.

[0155] Step 602: Generate second audio data with a phase opposite to that of the first audio data.

[0156] After receiving the first audio data, the controller may analyze and convert the first audio data and generate second audio data that can be used to offset the first audio data. Specifically, the controller may generate the second audio data with a phase opposite to that of the first audio data.

[0157] Step 603: In the first time period, determine whether there is a need to reduce noise generated by the plasma generating device.

[0158] In some feasible embodiments, the user may pre-set noise reduction strategies for the noise generated by the plasma generating device in different time periods; for example, it may be set that at night, i.e., in the first time period, there is a need to reduce the noise generated by the plasma generating device.

[0159] When the time is in the first time period, it can be determined that there is currently a need to reduce noise generated by the plasma generating device.

[0160] Step 604: In the second time period, determine that there is no need to reduce the noise generated by the plasma generating device.

[0161] On the contrary, the user can also set that during the day, that is, in the second time period, there is no need to reduce the noise generated by the plasma generating device.

[0162] When the time is in the second time period, it can be determined that there is currently no need to reduce the noise generated by the plasma generating device. The embodiment of the present invention does not limit the specific implementation of the first time period and the second time period.

[0163] Step 605: When there is no noise reduction requirement, stop controlling the speaker to play the second audio data.

[0164] When it is determined that there is no noise reduction demand at present, the control of the speaker to play the second audio data may be stopped until there is a noise reduction demand.

[0165] Step 606: When there is a noise reduction requirement, control the speaker to play the second audio data.

[0166] On the contrary, if it is determined that there is a noise reduction demand currently, the speaker can be controlled to play the second audio data to perform noise reduction processing on the noise generated by the plasma generating device.

[0167] In an embodiment of the present invention, during the operation of a plasma generator, first audio data obtained by collecting noise generated by the plasma generator is obtained from a microphone; second audio data with a phase opposite to the first audio data is generated; in a first time period, it is determined that there is a need for noise reduction for the noise generated by the plasma generator; in a second time period, it is determined that there is no need for noise reduction for the noise generated by the plasma generator; when there is no need for noise reduction, control of the speaker to play the second audio data is stopped; when there is a need for noise reduction, the speaker is controlled to play the second audio data. Through the embodiment of the present invention, the noise generated by the plasma generator in the environment can be offset by generating audio data for offsetting noise and playing the audio data; thereby effectively suppressing the noise generated by the plasma generator during the operation of the plasma generator to generate plasma.

[0168] Furthermore, the noise generated by the plasma generating device is reduced only when there is a need for noise reduction, thereby effectively avoiding waste of resources.

[0169] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0170] Reference Figure 7 , showing a schematic structural diagram of a plasma generator 70 according to an embodiment of the present invention, the plasma generator 70 may include: a plasma generating device 71, a controller 72, a pickup 73 and a speaker 74;

[0171] The plasma generating device 71 is used to generate plasma gas;

[0172] The microphone 73 is used to collect the noise generated by the plasma generating device 71 and generate first audio data;

[0173] The controller 72 is used to obtain first audio data collected from the noise generated by the plasma generating device 71 from the microphone 73 during the operation of the plasma generating device 71; generate second audio data for offsetting the first audio data; and control the speaker 74 to play the second audio data.

[0174] In an embodiment of the present invention, the plasma generator 70 may include a plasma generating device 71, a microphone 73 and a speaker 74; wherein the plasma generating device 71 may be used to generate plasma gas, the microphone 73 may be used to collect sounds in the environment and generate corresponding audio data, and the speaker 74 may be used to play audio data.

[0175] When the plasma generator 71 is in operation, the controller 72 in the plasma generator 70 may obtain first audio data from the microphone 73 that is obtained by collecting noise generated by the plasma generator 71 .

[0176] Exemplarily, the microphone 73 can continuously collect the noise generated by the plasma generating device 71 during the operation of the plasma generating device 71 , and generate corresponding first audio data to send to the controller 72 .

[0177] After receiving the first audio data, the controller 72 may analyze and convert the first audio data and generate second audio data that can be used to offset the first audio data; the second audio data is audio data that can offset the noise generated by the current plasma generating device 71 .

[0178] Next, the controller 72 can control the speaker 74 to play the second audio data to play the sound corresponding to the second audio data in the environment to offset the noise generated by the plasma generating device 71 during operation in the environment, thereby offsetting the impact of the noise generated by the plasma generating device 71 during operation on the user.

[0179] In one embodiment of the present invention, Figure 7 and Figure 8 As shown, the plasma generator 70 may further include a shell, the bottom of the shell is provided with an air inlet 75, and the top of the shell is provided with an air outlet 76;

[0180] An air inlet motor 77 is disposed at the air inlet 75;

[0181] The air outlet motor 78 is disposed at the air outlet 76 .

[0182] In actual applications, after the plasma generating device 71 generates plasma gas, the air inlet motor 77 and the air outlet fan in the plasma generator 70 can be operated to control the air to enter the plasma generator 70 from the air inlet 75 and leave the plasma generator 70 from the air outlet 76; at this time, the plasma gas generated by the plasma generating device 71 will enter the environment from the air outlet 76 through the airflow.

[0183] like Figure 8 As shown, the controller 72 can be an MCU processor; the microphone 73 can be connected to the MCU processor through a preamplifier circuit 79; the MCU processor can also be connected to the air inlet motor 77, the plasma generator 71, the air outlet motor 78 and the speaker driver 80 respectively; the speaker 74 driver 80 can be connected to the speaker 74.

[0184] The microphone 73 can transmit the first audio data to the MCU processor through the preamplifier circuit 79; the MCU processor can generate corresponding second audio data and send it to the speaker 74 driver 80; the speaker 74 driver 80 can drive the speaker 74 to play the sound used to offset the noise generated by the plasma generating device 71 according to the second audio data.

[0185] In addition, the MCU processor can also control the operation of the air inlet motor 77, the air outlet motor 78 and the plasma generating device 71 when powered on.

[0186] like Fig. 9 As shown, after the user inputs an instruction to start the plasma generator 70, the controller 72 can control the plasma generating device 71 by frequency conversion, and control the microphone 73 to collect noise; based on the first audio data of the microphone 73, the controller 72 can generate corresponding second audio data, and drive the speaker 74 to play the second audio data to reduce noise.

[0187] In addition, it is also possible to detect whether an end instruction for the plasma generator 70 is received; if so, the controller 72 stops all loads, namely the air inlet motor 77, the air outlet motor 78, the plasma generating device 71, the microphone 73 and the speaker 74, etc.

[0188] In an embodiment of the present invention, a plasma generator includes: a plasma generating device, a controller, a microphone and a speaker; the plasma generating device is used to generate plasma gas; the microphone is used to collect the noise generated by the plasma generating device and generate first audio data; the controller is used to obtain the first audio data collected from the microphone for the noise generated by the plasma generating device during the operation of the plasma generating device; generate second audio data for offsetting the first audio data; and control the speaker to play the second audio data. Through the embodiment of the present invention, the noise generated by the plasma generator in the environment can be offset by generating audio data for offsetting the noise and playing the audio data; thereby effectively suppressing the noise generated in the process of the plasma generator generating plasma.

[0189] Reference Fig.10 , shows a schematic structural diagram of a noise reduction device for a plasma generator according to an embodiment of the present invention, wherein the plasma generator comprises a plasma generating device, a pickup and a speaker; the plasma generating device is used to generate plasma gas.

[0190] like Fig.10 As shown, the noise reduction device of the plasma generator may include the following modules:

[0191] The acquisition module 1001 is used to acquire first audio data obtained by collecting noise generated by the plasma generating device from a microphone during the operation of the plasma generating device;

[0192] A generating module 1002, configured to generate second audio data for canceling the first audio data;

[0193] The control module 1003 is used to control the speaker to play the second audio data.

[0194] In an optional embodiment of the present invention, the device further comprises:

[0195] The driving module is used to drive the plasma generating device with a driving signal of a first frequency when the plasma generator is started; when the volume of the first audio data exceeds a preset decibel value, drive the plasma generating device with a driving signal of a second frequency; the first frequency is greater than the second frequency.

[0196] In an optional embodiment of the present invention, the generating module 1002 is configured to generate second audio data having a phase opposite to that of the first audio data.

[0197] In an optional embodiment of the present invention, the control module 1003 is used to detect whether there is a need for noise reduction for the noise generated by the plasma generating device before controlling the speaker to play the second audio data; when there is no need for noise reduction, stop controlling the speaker to play the second audio data.

[0198] In an optional embodiment of the present invention, the control module 1003 is used to obtain third audio data collected from the ambient noise in the environment where the plasma generator is located; when the volume of the third audio data is greater than the volume of the second audio data, it is determined that there is no need for noise reduction for the noise generated by the plasma generating device; when the volume of the third audio data is less than the volume of the second audio data, it is determined that there is no need for noise reduction for the noise generated by the plasma generating device.

[0199] In an optional embodiment of the present invention, the control module 1003 is used to determine that there is no need to reduce the noise generated by the plasma generating device when the environment where the plasma generator is located is in an unmanned state.

[0200] In an optional embodiment of the present invention, the control module 1003 is used to determine whether there is a need for noise reduction for the noise generated by the plasma generating device in a first time period; and determine whether there is no need for noise reduction for the noise generated by the plasma generating device in a second time period.

[0201] In the embodiment of the present invention, during the operation of the plasma generator, first audio data obtained by collecting the noise generated by the plasma generator is obtained from the microphone; second audio data for canceling the first audio data is generated; and the speaker is controlled to play the second audio data. Through the embodiment of the present invention, the noise generated by the plasma generator in the environment can be canceled by generating audio data for canceling the noise and playing the audio data; thereby effectively suppressing the noise generated during the operation of the plasma generator to generate plasma.

[0202] An embodiment of the present invention further provides an electronic device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and when the computer program is executed by the processor, the above-mentioned plasma generator noise reduction method is implemented.

[0203] 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 above-mentioned noise reduction method for a plasma generator is implemented.

[0204] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0205] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0206] Those skilled in the art will appreciate that the embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0207] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0208] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0209] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0210] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0211] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0212] The above provides a detailed introduction to a plasma generator noise reduction method, a plasma generator noise reduction device, a plasma generator, an electronic device and a computer-readable storage medium. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for a person skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A method for reducing noise of a plasma generator, characterized in that: The plasma generator comprises a plasma generating device, a pickup and a speaker; The plasma generating device is used to generate plasma gas; the method comprises: During the operation of the plasma generating device, first audio data obtained by collecting noise generated by the plasma generating device is obtained from the microphone; generating second audio data for cancelling the first audio data; The speaker is controlled to play the second audio data.

2. The method according to claim 1, characterized in that The method further comprises: When the plasma generator is started, the plasma generating device is driven by a driving signal of a first frequency; When the volume of the first audio data exceeds a preset decibel value, the plasma generating device is driven by a driving signal of a second frequency; the first frequency is greater than the second frequency.

3. The method according to claim 1, characterized in that The generating of the second audio data for cancelling the first audio data comprises: Second audio data having a phase opposite to that of the first audio data is generated.

4. The method according to claim 1, characterized in that: Before controlling the speaker to play the second audio data, the method further includes: Detecting whether there is a need to reduce noise generated by the plasma generating device; When there is no noise reduction requirement, stop controlling the speaker to play the second audio data.

5. The method according to claim 4, characterized in that The detecting whether there is a need to reduce noise generated by the plasma generating device includes: Acquire third audio data collected from environmental noise in an environment where the plasma generator is located; When the volume of the third audio data is greater than the volume of the second audio data, determining that there is no need to reduce the noise generated by the plasma generating device; When the volume of the third audio data is lower than the volume of the second audio data, it is determined that there is no need to reduce the noise generated by the plasma generating device.

6. The method according to claim 4, characterized in that The detecting whether there is a need to reduce noise generated by the plasma generating device includes: When the environment where the plasma generator is located is in an unmanned state, it is determined that there is no need to reduce the noise generated by the plasma generator.

7. The method according to claim 4, characterized in that The detecting whether there is a need to reduce noise generated by the plasma generating device includes: In a first time period, determining that there is a need to reduce noise generated by the plasma generating device; In the second time period, it is determined that there is no need to reduce the noise generated by the plasma generating device.

8. A plasma generator, characterized in that: The plasma generator comprises: a plasma generating device, a controller, a pickup and a speaker; The plasma generating device is used to generate plasma gas; The microphone is used to collect the noise generated by the plasma generating device and generate first audio data; The controller is used to obtain first audio data collected from the microphone for noise generated by the plasma generating device during the operation of the plasma generating device; generate second audio data for offsetting the first audio data; and control the speaker to play the second audio data.

9. The plasma generator according to claim 8, characterized in that: The plasma generator also includes: A shell, wherein an air inlet is disposed at the bottom of the shell, and an air outlet is disposed at the top of the shell; An air inlet motor is arranged at the air inlet; The air outlet motor is arranged at the air outlet.

10. A noise reduction device for a plasma generator, characterized in that: The plasma generator comprises a plasma generating device, a pickup and a speaker; The plasma generating device is used to generate plasma gas; the device comprises: A collection module, used for acquiring first audio data obtained by collecting noise generated by the plasma generating device from the microphone during the operation of the plasma generating device; A generating module, used for generating second audio data for canceling the first audio data; The control module is used to control the speaker to play the second audio data.

11. An electronic device, characterized in that: The invention comprises a processor, a memory and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the noise reduction method of the plasma generator according to any one of claims 1 to 7 is implemented.

12. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the noise reduction method for a plasma generator according to any one of claims 1 to 7 is implemented.

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