Atomizer control method and device, electronic equipment and readable medium

Abstract

The invention provides an atomizer control method and device, electronic equipment and a readable medium. To-be-atomized liquid is placed on the surface of a plane structure; inputting the liquid property of the liquid to be atomized into the uniform voltage signal generation model to obtain a uniform voltage signal; the uniform voltage signal is applied to the piezoelectric ceramic vibrator, the piezoelectric ceramic vibrator generates longitudinal wave output of first vibration, the vibration longitudinal wave amplifies the vibration effect by the transduction rod and transmits the vibration longitudinal wave to the plane structure at the upper end of the transduction rod, transverse wave output of third vibration is generated, and liquid to be atomized is converted into a uniform liquid film layer; inputting the target atomization particle diameter, the liquid type of the to-be-atomized liquid, the liquid film size of the uniform liquid film layer and the liquid property into an atomization voltage signal generation model to obtain an atomization voltage signal; the atomization voltage signal is applied to the piezoelectric ceramic vibrator, the piezoelectric ceramic vibrator generates longitudinal wave output of second vibration, then the plane structure generates transverse wave output of fourth vibration, and the liquid film layer is atomized into particles with the target atomization particle diameter and uniform.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomizers, in particular to an atomizer control method and device, an electronic device and a readable medium. BACKGROUND

[0002] In related technologies, an atomizer can atomize a liquid to obtain atomized particles. The atomizer can be applied in the medical field, the industrial spraying field and the like. However, the atomizer cannot accurately control the size of the atomized particles obtained by atomization, and cannot ensure that the atomized particles obtained by atomization are uniformly distributed.

[0003] When the atomizer is applied in the medical field, the atomizer can atomize a patient's liquid medicine to obtain corresponding atomized particles for the patient to inhale. However, since the atomizer cannot accurately control the size of the atomized particles obtained by atomizing the liquid, there is a problem that the atomized particles are too large to cause the patient to cough, or the atomized particles are too small to be exhaled by the user after being inhaled by the user.

[0004] When the atomizer is applied in the industrial spraying field, the atomizer can atomize an industrial liquid to obtain corresponding atomized particles, and spray the atomized particles on the surface of an industrial device. However, since the atomizer cannot ensure the uniformity of the atomized particles, the atomized particles are not uniformly distributed on the surface of the device, and a target pattern cannot be obtained. At the same time, since the atomizer cannot control the size of the atomized particles, if the particle size is too large, the coating after spraying will be rough and have poor adhesion. SUMMARY

[0005] The embodiments of the present application provide an atomizer control method and device, an electronic device and a computer readable storage medium to solve the problem that the atomizer cannot accurately control the size of the atomized particles obtained by atomization, and cannot ensure that the atomized particles obtained by atomization are uniformly distributed.

[0006] The embodiments of the present application disclose an atomizer control method applied to an atomizer, the atomizer comprising a piezoelectric ceramic vibrator and / or a planar focusing type transducer rod; the planar focusing type transducer rod comprising a tapered structure and / or a planar structure; the planar structure being arranged at a tip position of the tapered structure; the piezoelectric ceramic vibrator being connected with a bottom surface of the tapered structure; the method comprising: placing at least one drop of a liquid to be atomized on a surface of the planar structure facing away from the tapered structure; obtaining a liquid type and at least one liquid property of the liquid to be atomized, and inputting the liquid property into a preset uniform voltage signal generation model to obtain a uniform voltage signal of the piezoelectric ceramic vibrator; applying the uniform voltage signal to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a first vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the first vibration longitudinal wave output, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducing rod to vibrate, so that the planar structure generates a third vibration transverse wave output; under the action of the third vibration transverse wave output, the at least one drop of liquid to be atomized is converted into a uniform liquid film layer; collecting a liquid film size of the uniform liquid film layer, and inputting at least one of a preset target atomized particle diameter, a type of the liquid, the liquid film size, and a property of the liquid into a preset atomization voltage signal generation model to obtain an atomization voltage signal of the piezoelectric ceramic vibrator; applying the atomization voltage signal to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a second vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the second vibration longitudinal wave output, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducing rod to vibrate, so that the planar structure generates a fourth vibration transverse wave output; under the action of the fourth vibration transverse wave output, the uniform liquid film layer is atomized into target atomized particles of the target atomized particle diameter.

[0007] Optionally, the property of the liquid includes at least one of a surface tension, a density, a wavelength, and an angular frequency of the liquid to be atomized; and the liquid film size includes a liquid film diameter and / or a liquid film thickness of the uniform liquid film layer.

[0008] Optionally, the method comprises: constructing a first training set of a preset first machine learning model, and training the first machine learning model by using the first training set to obtain the uniform voltage signal generation model; constructing a second training set of a preset second machine learning model, and training the second machine learning model by using the second training set to obtain the atomization voltage signal generation model.

[0009] Optionally, the constructing the first training set of the preset first machine learning model comprises: obtaining a training liquid property of at least one training liquid to be atomized; determining a training first vibration corresponding to the training liquid to be atomized by using the training liquid property; determining a training uniform voltage signal corresponding to the training first vibration according to the training first vibration; using the training liquid property and the training uniform voltage signal corresponding to the training first vibration as the first training set.

[0010] Optionally, the training first vibration includes training first vibration amplitude and / or training first vibration frequency; the training liquid properties include at least one of the training surface tension, training density, training wavelength, and training angular frequency of the training liquid to be atomized; determining the training first vibration corresponding to the training liquid to be atomized using the training liquid properties includes: Using the properties of the training liquid and the first frequency calculation formula, the first training vibration frequency is determined; the first frequency calculation formula is:

[0011] in, The training first vibration frequency is σ; the training surface tension is ρ; the training density is λ; the training wavelength is λ. Using the properties of the training liquid and the first amplitude calculation formula, the first vibration amplitude of the training is determined; the first amplitude calculation formula is:

[0012] in, The training first vibration amplitude is ω; ω is the training angular frequency. H is the preset first amplitude amplification parameter; H is the amplitude amplification factor of the piezoelectric ceramic vibrator by the planar focusing transducer.

[0013] Optionally, the second training set for constructing the preset second machine learning model includes: Obtain at least one of the following: the type of training liquid to be atomized, the size of the training liquid film formed by the training liquid to be atomized, and the diameter of the training target atomized particles; The training second vibration of the piezoelectric ceramic resonator is determined by using at least one of the training liquid type, the training liquid property, the training liquid film size, and the diameter of the training target atomized particles; Based on the training second vibration, determine the training atomization voltage signal corresponding to the training second vibration; The training liquid type, the training liquid properties, the training liquid film size, the diameter of the training target atomized particles, and the training atomization voltage signal corresponding to the training second vibration are used as the second training set.

[0014] Optionally, the training second vibration includes training second vibration amplitude and / or training second vibration frequency; the training liquid film size includes training liquid film diameter and / or training liquid film thickness of the training liquid film layer; and the determining the training second vibration of the piezoelectric ceramic vibrator by using at least one of the training liquid type, the training liquid property, the training liquid film size and the training target atomized particle diameter includes: determining a target frequency proportional coefficient corresponding to the training liquid type according to the training liquid type; determining the training second vibration frequency of the piezoelectric ceramic vibrator by using a second frequency calculation formula and the target frequency proportional coefficient and the training target atomized particle diameter; the second frequency calculation formula is:

[0015] wherein, the training second vibration frequency, k is the target frequency proportional coefficient, and d is the training target atomized particle diameter; determining the training second vibration amplitude of the piezoelectric ceramic vibrator by using a second amplitude calculation formula and at least one of the training liquid property, the training liquid film size and the training target atomized particle diameter; the second amplitude calculation formula is:

[0016] wherein, the training second vibration amplitude, h is the training liquid film thickness, D is the training liquid film diameter, a preset second amplitude amplification parameter.

[0017] The application further discloses a control device of an atomizer, which is applied to the atomizer, and the atomizer includes a piezoelectric ceramic vibrator and / or a plane focusing type transducing rod; the plane focusing type transducing rod includes a conical structure and / or a plane structure; the plane structure is arranged at a tip position of the conical structure; the piezoelectric ceramic vibrator is connected with a bottom surface of the conical structure; and the device includes: a liquid placing module, which is used for placing at least one drop of liquid to be atomized on a surface of the plane structure away from the conical structure; a uniform voltage signal obtaining module, which is used for obtaining a liquid type and at least one liquid property of the liquid to be atomized, inputting the liquid property into a preset uniform voltage signal generation model, and obtaining a uniform voltage signal of the piezoelectric ceramic vibrator; The first vibration generation module is configured to apply the uniform voltage signal to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a first longitudinal wave output of vibration; when the piezoelectric ceramic vibrator generates the first longitudinal wave output of vibration, the piezoelectric ceramic vibrator is configured to drive the planar focusing type transducing rod to vibrate, so that the planar structure generates a third transverse wave output of vibration; under the action of the third transverse wave output of vibration, the at least one drop of liquid to be atomized is converted into a uniform liquid film layer. The atomization voltage signal obtaining module is configured to collect a liquid film size of the uniform liquid film layer, and input at least one of a preset target atomization particle diameter, the type of the liquid, the liquid film size, and the property of the liquid into a preset atomization voltage signal generation model to obtain an atomization voltage signal of the piezoelectric ceramic vibrator. The second vibration generation module is configured to apply the atomization voltage signal to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a second longitudinal wave output of vibration; when the piezoelectric ceramic vibrator generates the second longitudinal wave output of vibration, the piezoelectric ceramic vibrator is configured to drive the planar focusing type transducing rod to vibrate, so that the planar structure generates a fourth transverse wave output of vibration; under the action of the fourth transverse wave output of vibration, the uniform liquid film layer is atomized into target atomization particles with the target atomization particle diameter.

[0018] Optionally, the property of the liquid includes at least one of a surface tension, a density, a wavelength, and an angular frequency of the liquid to be atomized; and the liquid film size includes a liquid film diameter and / or a liquid film thickness of the uniform liquid film layer.

[0019] Optionally, the device includes: The first training set construction module is configured to construct a first training set of a preset first machine learning model, and train the first machine learning model by using the first training set to obtain the uniform voltage signal generation model. The second training set construction module is configured to construct a second training set of a preset second machine learning model, and train the second machine learning model by using the second training set to obtain the atomization voltage signal generation model.

[0020] Optionally, the first training set construction module includes: The training liquid property acquisition submodule is configured to acquire a training liquid property of at least one training liquid to be atomized. The training first vibration determination submodule is configured to determine a training first vibration corresponding to the training liquid to be atomized by using the training liquid property. The training uniform voltage signal determination submodule is configured to determine a training uniform voltage signal corresponding to the training first vibration according to the training first vibration. The first training set is used as a submodule for taking the training liquid property and the training uniform voltage signal corresponding to the training first vibration as the first training set.

[0021] Optionally, the training first vibration includes a training first vibration amplitude and / or a training first vibration frequency; the training liquid property includes at least one of a training surface tension, a training density, a training wavelength and a training angular frequency of the training liquid to be atomized; and the training first vibration determination submodule includes: a training first vibration frequency determination unit configured to determine the training first vibration frequency by using a first frequency calculation formula based on the training liquid property; the first frequency calculation formula is:

[0022] wherein, ω1 is the training first vibration frequency; σ is the training surface tension; ρ is the training density; and λ is the training wavelength. a training first vibration amplitude determination unit configured to determine the training first vibration amplitude by using a first amplitude calculation formula based on the training liquid property; the first amplitude calculation formula is:

[0023] wherein, A1 is the training first vibration amplitude; ω is the training angular frequency. is a preset first amplitude amplification parameter; and H is a vibration amplitude amplification coefficient of the planar focusing type transducing rod to the piezoelectric ceramic vibrator. Optionally, the second training set construction module includes:

[0024] a training liquid type of the training liquid to be atomized, a training liquid film size of a training liquid film layer formed by the training liquid to be atomized and at least one of a training target atomized particle diameter; a training second vibration determination submodule configured to determine the training second vibration of the piezoelectric ceramic vibrator based on at least one of the training liquid type, the training liquid property, the training liquid film size and the training target atomized particle diameter; a training second vibration determination submodule configured to determine the training second vibration of the piezoelectric ceramic vibrator based on at least one of the training liquid type, the training liquid property, the training liquid film size and the training target atomized particle diameter; a training second vibration determination submodule configured to determine the training second vibration of the piezoelectric ceramic vibrator based on at least one of the training liquid type, the training liquid property, the training liquid film size and the training target atomized particle diameter; The second training set is used as a submodule for taking the training liquid type, the training liquid property, the training liquid film size, the training target atomized particle diameter and the training atomization voltage signal corresponding to the training second vibration as the second training set.

[0025] ​Optionally, the training second vibration includes training second vibration amplitude and / or training second vibration frequency; the training liquid film size includes training liquid film diameter and / or training liquid film thickness of the training liquid film layer; the training second vibration determination submodule includes: a target frequency ratio coefficient determination unit configured to determine a target frequency ratio coefficient corresponding to the training liquid type according to the training liquid type; a training second vibration frequency determination unit configured to determine a training second vibration frequency of the piezoelectric ceramic vibrator by using a second frequency calculation formula with the target frequency ratio coefficient and the training target atomized particle diameter; the second frequency calculation formula is:

[0026] wherein, is the training second vibration frequency, k is the target frequency ratio coefficient, and d is the training target atomized particle diameter; a training second vibration amplitude determination unit configured to determine a training second vibration amplitude of the piezoelectric ceramic vibrator by using a second amplitude calculation formula with at least one of the training liquid property, the training liquid film size, and the training target atomized particle diameter; the second amplitude calculation formula is:

[0027] wherein, is the training second vibration amplitude, h is the training liquid film thickness, D is the training liquid film diameter, is a preset second amplitude amplification parameter.

[0028] Embodiments of the present application also disclose an electronic device including a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete communication with each other through the communication bus; the memory is configured to store a computer program; the processor is configured to execute the program stored on the memory, and implement the method according to the embodiments of the present application.

[0029] Embodiments of the present application also disclose one or more computer readable media having instructions stored thereon, which, when executed by one or more processors, cause the processors to perform the method according to the embodiments of the present application.

[0030] Embodiments of the present application have the following advantages: In the embodiment of the present application, the atomizer comprises a piezoelectric ceramic vibrator and / or a planar focusing type transducer rod; the planar focusing type transducer rod comprises a tapered structure and / or a planar structure; the planar structure is arranged at the tip position of the tapered structure; the piezoelectric ceramic vibrator is connected with the bottom surface of the tapered structure; at least one drop of liquid to be atomized is placed on the surface of the planar structure away from the tapered structure; the type and at least one property of the liquid to be atomized are obtained, and the property of the liquid is input into a preset uniform voltage signal generation model to obtain a uniform voltage signal of the piezoelectric ceramic vibrator; the uniform voltage signal is applied to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a first vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the first vibration longitudinal wave output, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate, so that the planar structure generates a third vibration transverse wave output; under the action of the third vibration transverse wave output, the at least one drop of liquid to be atomized is converted into a uniform liquid film layer; the liquid film size of the uniform liquid film layer is collected, and at least one of the preset target atomized particle diameter, the type of the liquid, the liquid film size and the property of the liquid is input into a preset atomization voltage signal generation model to obtain an atomization voltage signal of the piezoelectric ceramic vibrator; the atomization voltage signal is applied to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a second vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the second vibration longitudinal wave output, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate, so that the planar structure generates a fourth vibration transverse wave output; under the action of the fourth vibration transverse wave output, the uniform liquid film layer is atomized into target atomized particles with the target atomized particle diameter. In the embodiment of the present application, the uniform voltage signal is applied to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a first vibration; when the piezoelectric ceramic vibrator generates the first vibration, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate, so that the at least one drop of liquid to be atomized is converted into a uniform liquid film layer, and by making the liquid film layer on the surface of the planar structure uniform, the distribution uniformity of a large number of atomized particles obtained after the liquid film layer is atomized can be improved. The atomization voltage signal is applied to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a second vibration; when the piezoelectric ceramic vibrator generates the second vibration, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate, so that the uniform liquid film layer is atomized into target atomized particles with the target atomized particle diameter, and the target atomized particles are uniformly distributed. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a step flow chart of a control method of an atomizer provided in the embodiment of the present application; Figure 2 is a schematic diagram of an atomizer provided in the embodiment of the present application; Figure 3 is a structure block diagram of a control device of an atomizer provided in the embodiment of the present application; Figure 4 is a block diagram of an electronic device provided in an embodiment of the present application; Figure 5 is a schematic diagram of a computer readable medium provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the above objectives, characteristics and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] In order to facilitate understanding of the technical solutions and technical effects of the embodiments of the present application, the related technologies of the present application will be briefly described below.

[0034] Ultrasonic atomization refers to atomizing liquid into water droplets, which are also called atomized particles, by using high-frequency ultrasonic vibration. The higher the vibration frequency, the smaller the particle size of the atomized particles. In related technologies, the particle size of the atomized particles obtained after the liquid is atomized must be less than 2.5 microns (μm), and the atomized particles can become particles that can be naturally suspended and can be driven by micro air flow for transmission and application; otherwise, the atomized particles will settle and cannot be transmitted and applied.

[0035] In the fields of biomedical applications and industrial atomized coating, liquid needs to be effectively atomized to generate uniform and suspendable liquid droplets. The atomization technologies in related technologies include high-frequency piezoelectric vibration liquid surface water column atomization and low-frequency piezoelectric hole throwing atomization. However, the atomized columns generated by the two atomization methods both need a large space atomization chamber; and the atomized particles are not uniform in size, the proportion of suspendable atomized particles is low, and the liquid conversion efficiency is not high.

[0036] Referring to Figure 1 , a step flowchart of a control method of an atomizer provided in an embodiment of the present application is shown, which is applied to an atomizer, the atomizer comprising: a piezoelectric ceramic vibrator and / or a planar focusing type transducer rod; the planar focusing type transducer rod comprising a tapered structure and / or a planar structure; the planar structure is arranged at a tip position of the tapered structure; the piezoelectric ceramic vibrator is connected with a bottom surface of the tapered structure; and specifically can comprise the following steps: Step 101, placing at least one drop of liquid to be atomized on a surface of the planar structure away from the tapered structure; In an embodiment of the present application, the atomizer can atomize the liquid to be atomized to obtain atomized particles. The atomizer can comprise: a piezoelectric ceramic vibrator and / or a planar focusing type transducer rod. The planar focusing type transducer rod is a planar focusing exponential type or a tapered transducer rod.

[0037] Referring to Figure 2, a schematic diagram of an atomizer is shown. The atomizer is a planar high-frequency micro-suspended particle atomizer. The atomizer comprises a high-frequency drive controller, a piezoelectric ceramic vibrator, a planar focusing type transducer rod, and a siphon dropper. The planar focusing type transducer rod comprises a tapered structure and / or a planar structure, the planar structure is arranged at the tip position of the tapered structure, and the piezoelectric ceramic vibrator is connected with the bottom surface of the tapered structure. The high-frequency drive controller is connected with the piezoelectric ceramic vibrator. The piezoelectric ceramic vibrator is a material with piezoelectric effect, which can convert between mechanical stress and electric field. That is, when a voltage is applied to the piezoelectric ceramic vibrator, it will vibrate.

[0038] In the embodiment of the present application, at least one drop of the atomized liquid can be placed on the surface of the planar structure of the planar focusing type transducer rod away from the tapered structure by using the siphon dropper. Then, the high-frequency drive controller applies a voltage signal to the piezoelectric ceramic vibrator, the piezoelectric ceramic vibrator vibrates, and the piezoelectric ceramic vibrator makes the planar focusing type transducer rod connected therewith also vibrate. The planar focusing type transducer rod amplifies the vibration amplitude of the piezoelectric ceramic vibrator, and the vibration amplitude of the planar structure of the planar focusing type transducer rod is greater than that of the piezoelectric ceramic vibrator.

[0039] Under the vibration action of the piezoelectric ceramic vibrator, the atomized liquid on the surface of the planar structure forms a liquid film layer, and then the liquid in the liquid film layer is atomized and converted into atomized suspended particles, forming an atomization area on the side of the surface of the planar structure away from the tapered structure.

[0040] In step 102, the liquid type and at least one liquid property of the atomized liquid are obtained, and the liquid property is input into a preset uniform voltage signal generation model to obtain a uniform voltage signal of the piezoelectric ceramic vibrator. In the embodiment of the present application, at least one drop of the atomized liquid placed on the surface of the planar structure away from the tapered structure can be converted into a uniform liquid film layer by the vibration of the planar focusing type transducer rod. By making the liquid film layer on the surface of the planar structure uniform, the distribution uniformity of a large number of atomized particles obtained after the liquid in the liquid film layer is atomized can be improved.

[0041] In the embodiment of the present application, a uniform voltage signal generation model can be constructed. Then, the liquid type of at least one drop of the atomized liquid placed on the surface of the planar structure away from the tapered structure and at least one liquid property of the atomized liquid are obtained. The liquid type can include water, medicinal solution, ink, etc. The liquid property can include surface tension, density, wavelength, etc.

[0042] In the embodiment of the present application, the liquid property of the atomized liquid can be input into the uniform voltage signal generation model, and the uniform voltage signal generation model can output a uniform voltage signal of the piezoelectric ceramic vibrator.

[0043] Step 103, applying the uniform voltage signal to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a first vibration of longitudinal wave output; when the piezoelectric ceramic vibrator generates the first vibration of longitudinal wave output, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate, so that the planar structure generates a third vibration of transverse wave output; under the action of the third vibration of transverse wave output, the at least one drop of liquid to be atomized is converted into a uniform liquid film layer; In the embodiment of the present application, the uniform voltage signal of the piezoelectric ceramic vibrator output by the uniform voltage signal generation model can be applied to the piezoelectric ceramic vibrator through the high-frequency driving controller, and the piezoelectric ceramic vibrator will generate a first vibration of longitudinal wave output.

[0044] When the piezoelectric ceramic vibrator generates the first vibration of longitudinal wave output, the vibration longitudinal wave is amplified by the transducer rod and transmitted to the planar structure at the upper end of the transducer rod. The piezoelectric ceramic vibrator can simultaneously drive the planar focusing type transducer rod to vibrate. The planar focusing type transducer rod amplifies the vibration amplitude of the first vibration of the piezoelectric ceramic vibrator, and the vibration amplitude of the planar structure of the planar focusing type transducer rod is greater than the vibration amplitude of the first vibration of the piezoelectric ceramic vibrator. The vibration frequency of the planar structure of the planar focusing type transducer rod is the same as the vibration frequency of the first vibration of the piezoelectric ceramic vibrator.

[0045] Under the action of the vibration of the planar focusing type transducer rod, at least one drop of liquid to be atomized placed on the surface of the planar structure away from the conical structure can be converted into a uniform liquid film layer.

[0046] Step 104, collecting the liquid film size of the uniform liquid film layer, and inputting at least one of the preset target atomized particle diameter, the liquid type, the liquid film size, and the liquid property into the preset atomization voltage signal generation model to obtain the atomization voltage signal of the piezoelectric ceramic vibrator; In the embodiment of the present application, the vibration of the planar focusing type transducer rod can make the uniform liquid film layer on the surface of the planar structure away from the conical structure atomize into target atomized particles with a target atomized particle diameter, and the target atomized particles are uniformly distributed.

[0047] In the embodiment of the present application, the atomizer can also be provided with a sensor, such as a laser displacement sensor, an optical interferometer, etc. In the embodiment of the present application, the sensor can be used to collect the liquid film size of the uniform liquid film layer on the surface of the planar structure. The liquid film size can include the liquid film diameter, the liquid film thickness, etc. The surface of the uniform liquid film layer can be circular, and the liquid film diameter refers to the diameter of the circle. If the surface of the uniform liquid film layer is not circular, the irregularly shaped liquid film area can be equivalent to a circle with the same area, and the diameter of the circle is the liquid film diameter of the uniform liquid film layer.

[0048] In the embodiment of the present application, a nebulization voltage signal generation model can be constructed, and then at least one of the liquid film size of the uniform liquid film layer, the target nebulization particle diameter, the liquid type of the liquid to be nebulized, and the liquid property of the liquid to be nebulized is input into the nebulization voltage signal generation model, and the nebulization voltage signal generation model outputs the nebulization voltage signal of the piezoelectric ceramic vibrator.

[0049] In step 105, the nebulization voltage signal is applied to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a second vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the second vibration longitudinal wave output, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate, so that the planar structure generates a fourth vibration transverse wave output; under the action of the fourth vibration transverse wave output, the uniform liquid film layer is nebulized into target nebulization particles with the target nebulization particle diameter.

[0050] In the embodiment of the present application, the nebulization voltage signal of the piezoelectric ceramic vibrator output by the nebulization voltage signal generation model is applied to the piezoelectric ceramic vibrator through the high-frequency drive controller, and the piezoelectric ceramic vibrator generates a second vibration longitudinal wave output.

[0051] When the piezoelectric ceramic vibrator generates a second vibration longitudinal wave output, the vibration longitudinal wave is amplified by the transducer rod and transmitted to the planar structure at the upper end of the transducer rod. The piezoelectric ceramic vibrator can simultaneously drive the planar focusing type transducer rod to vibrate. The planar focusing type transducer rod amplifies the vibration amplitude of the second vibration of the piezoelectric ceramic vibrator, and the vibration amplitude of the planar structure of the planar focusing type transducer rod is greater than the vibration amplitude of the second vibration of the piezoelectric ceramic vibrator. The vibration frequency of the planar structure of the planar focusing type transducer rod is the same as the vibration frequency of the second vibration of the piezoelectric ceramic vibrator.

[0052] Under the action of the vibration of the planar focusing type transducer rod, the uniform liquid film layer on the surface of the planar structure away from the conical structure can be nebulized into target nebulization particles with the target nebulization particle diameter, and the target nebulization particles are uniformly distributed.

[0053] In the embodiment of the present application, the atomizer comprises a piezoelectric ceramic vibrator and / or a planar focusing type transducer rod; the planar focusing type transducer rod comprises a tapered structure and / or a planar structure; the planar structure is arranged at the tip position of the tapered structure; the piezoelectric ceramic vibrator is connected with the bottom surface of the tapered structure; at least one drop of liquid to be atomized is placed on the surface of the planar structure away from the tapered structure; the type of the liquid to be atomized and at least one property of the liquid are obtained, and the property of the liquid is input into a preset uniform voltage signal generation model to obtain a uniform voltage signal of the piezoelectric ceramic vibrator; the uniform voltage signal is applied to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a first vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the first vibration longitudinal wave output, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate, so that the planar structure generates a third vibration transverse wave output; under the action of the third vibration transverse wave output, the at least one drop of liquid to be atomized is converted into a uniform liquid film layer; the liquid film size of the uniform liquid film layer is collected, and at least one of the preset target atomized particle diameter, the type of the liquid, the liquid film size and the property of the liquid is input into a preset atomization voltage signal generation model to obtain an atomization voltage signal of the piezoelectric ceramic vibrator; the atomization voltage signal is applied to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a second vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the second vibration longitudinal wave output, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate, so that the planar structure generates a fourth vibration transverse wave output; under the action of the fourth vibration transverse wave output, the uniform liquid film layer is atomized into target atomized particles of the target atomized particle diameter. In the embodiment of the present application, the uniform voltage signal is applied to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a first vibration; when the piezoelectric ceramic vibrator generates the first vibration, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate, so that the at least one drop of liquid to be atomized is converted into a uniform liquid film layer, and by making the liquid film layer on the surface of the planar structure uniform, the distribution uniformity of a large number of atomized particles obtained after the liquid film layer is atomized can be improved. The atomization voltage signal is applied to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a second vibration; when the piezoelectric ceramic vibrator generates the second vibration, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate, so that the uniform liquid film layer is atomized into target atomized particles of the target atomized particle diameter, and the target atomized particles are uniformly distributed, solving the problems that the atomizer cannot accurately control the size of the atomized particles obtained by atomization, and cannot ensure that a plurality of atomized particles obtained by atomization are uniformly distributed. When the atomizer in the embodiment of the present application is applied to the medical field, the atomizer can accurately control the size of the atomized particles obtained by atomizing the liquid of the atomizer, so that the user can smoothly inhale the atomized particles; when applied to the industrial spraying field, the atomizer can ensure the uniformity of the atomized particles, and can also control the size of the atomized particles, so that the target pattern on the surface of the equipment can be smoothly obtained by using the atomizer, and the target pattern has strong adhesion.

[0054] In some embodiments of the present application, the liquid properties include at least one of a surface tension, a density, a wavelength and an angular frequency of the liquid to be atomized; and the liquid film size includes a liquid film diameter and / or a liquid film thickness of the uniform liquid film layer.

[0055] In embodiments of the present application, the liquid properties of the liquid to be atomized can include at least one of a surface tension, a density, a wavelength and an angular frequency of the liquid to be atomized. The liquid film size of the uniform liquid film layer can include a liquid film diameter and / or a liquid film thickness of the uniform liquid film layer. Wherein the wavelength of the liquid to be atomized refers to the wavelength of the standing wave formed in the vibration process of the liquid film layer formed by the liquid to be atomized, which is related to the liquid properties such as the angular frequency of the liquid to be atomized, and can be determined according to these liquid properties.

[0056] In some embodiments of the present application, the method comprises: constructing a first training set of a preset first machine learning model, and training the first machine learning model using the first training set to obtain the uniform voltage signal generation model; constructing a second training set of a preset second machine learning model, and training the second machine learning model using the second training set to obtain the atomization voltage signal generation model.

[0057] In embodiments of the present application, a first training set of a preset first machine learning model can be constructed, and then the first machine learning model is trained using the first training set to obtain the uniform voltage signal generation model.

[0058] In embodiments of the present application, a second training set of a preset second machine learning model can be constructed, and then the second machine learning model is trained using the second training set to obtain the atomization voltage signal generation model.

[0059] In some embodiments of the present application, the construction of the first training set of the preset first machine learning model comprises: obtaining training liquid properties of at least one training liquid to be atomized; determining a training first vibration corresponding to the training liquid to be atomized using the training liquid properties; determining a training uniform voltage signal corresponding to the training first vibration according to the training first vibration; using the training liquid properties and the training uniform voltage signal corresponding to the training first vibration as the first training set.

[0060] In embodiments of the present application, training liquid properties of at least one training liquid to be atomized can be obtained. Wherein the training liquid properties of the training liquid to be atomized can include at least one of a training surface tension, a training density, a training wavelength and a training angular frequency of the training liquid to be atomized.

[0061] In the embodiment of the present application, the training liquid properties can be used to determine the training first vibration corresponding to the training liquid to be atomized. The training first vibration corresponding to the training liquid to be atomized refers to, when at least one drop of the training liquid to be atomized is placed on the surface of the planar structure of the planar focusing type transducing rod facing away from the conical structure, in order to make the at least one drop of the training liquid to be atomized into a uniform liquid film layer for training, after the piezoelectric ceramic vibrator is applied with a voltage signal by the high-frequency driving controller, the training first vibration generated by the piezoelectric ceramic vibrator. After the piezoelectric ceramic vibrator generates the training first vibration, it drives the planar focusing type transducing rod to also vibrate, so that the at least one drop of the training liquid to be atomized is converted into a uniform liquid film layer for training.

[0062] In the embodiment of the present application, according to the training first vibration required to be generated by the piezoelectric ceramic vibrator, the training uniform voltage signal corresponding to the training first vibration can be determined, that is, in order to make the piezoelectric ceramic vibrator generate the training first vibration, the uniform voltage signal for training needs to be applied to the piezoelectric ceramic vibrator by the high-frequency driving controller.

[0063] In the embodiment of the present application, the training first vibration includes the training first vibration amplitude and the training first vibration frequency of the piezoelectric ceramic vibrator. In the embodiment of the present application, the training first vibration amplitude and the training first vibration frequency of the piezoelectric ceramic vibrator are used to determine the training uniform voltage signal corresponding to the training first vibration by using the voltage signal calculation formula. Wherein, the voltage signal calculation formula is:

[0064] Wherein, V is the amplitude of the training uniform voltage signal, A is the training first vibration amplitude, f is the training first vibration frequency, p is the density of the piezoelectric ceramic vibrator, L is the length of the piezoelectric ceramic vibrator, is the piezoelectric strain constant of the piezoelectric ceramic vibrator, E is the elastic modulus of the piezoelectric ceramic vibrator, is the resonance frequency of the piezoelectric ceramic vibrator.

[0065] In the embodiment of the present application, the training liquid properties and the training uniform voltage signal corresponding to the training first vibration can be used as the first training set. The first machine learning model is trained by using the first training set, and a uniform voltage signal generation model can be obtained.

[0066] In some embodiments of the present application, the training first vibration includes a training first vibration amplitude and / or a training first vibration frequency; the training liquid properties include at least one of a training surface tension, a training density, a training wavelength and a training angular frequency of the training liquid to be atomized; and the determining the training first vibration corresponding to the training liquid to be atomized by using the training liquid properties comprises: determining the training first vibration frequency of the piezoceramic vibrator by using a first frequency calculation formula, wherein the first frequency calculation formula is:

[0067] wherein, the training first vibration frequency; σ is the training surface tension; ρ is the training density; λ is the training wavelength; determining the training first vibration amplitude of the piezoceramic vibrator by using a first amplitude calculation formula, wherein the first amplitude calculation formula is:

[0068] wherein, the training first vibration amplitude; ω is the training angular frequency; is a preset first amplitude amplification parameter; H is the vibration amplitude amplification coefficient of the planar focusing transducing rod to the piezoceramic vibrator.

[0069] In the embodiments of the present application, the training first vibration of the piezoceramic vibrator includes the training first vibration amplitude and / or the training first vibration frequency. The training liquid properties of the training liquid to be atomized include at least one of the training surface tension, the training density, the training wavelength and the training angular frequency of the training liquid to be atomized.

[0070] In the embodiments of the present application, by using the training liquid properties of the training liquid to be atomized, the training first vibration frequency of the piezoceramic vibrator can be determined by using the first frequency calculation formula. The first frequency calculation formula is:

[0071] wherein, the training first vibration frequency; σ is the training surface tension; ρ is the training density; λ is the training wavelength.

[0072] In the embodiments of the present application, by using the training liquid properties of the training liquid to be atomized, the training first vibration amplitude of the piezoceramic vibrator can be determined by using the first amplitude calculation formula. The first amplitude calculation formula is:

[0073] wherein, the training first vibration amplitude of the piezoceramic vibrator; ω is the training angular frequency; is a preset first amplitude amplification parameter; H is the vibration amplitude amplification coefficient of the planar focusing transducing rod to the piezoceramic vibrator.

[0074] wherein, by The vibration amplitude threshold of the planar structure can be calculated. If the planar structure vibrates according to the vibration amplitude threshold, at least one drop of the training liquid to be atomized is at a critical point of forming a uniform liquid film layer. The vibration amplitude threshold of the planar structure can be calculated. If the planar structure vibrates according to the vibration amplitude threshold, at least one drop of the training liquid to be atomized is at a critical point of forming a uniform liquid film layer. The vibration amplitude threshold of the planar structure can be calculated. If the planar structure vibrates according to the vibration amplitude threshold, at least one drop of the training liquid to be atomized is at a critical point of forming a uniform liquid film layer.

[0075] In some embodiments of the present application, the second training set for building the preset second machine learning model includes: At least one of the training liquid type of the training liquid to be atomized, the training liquid film size of the training liquid film layer formed by the training liquid to be atomized, and the training target atomized particle diameter is obtained. At least one of the training liquid type, the training liquid property, the training liquid film size, and the training target atomized particle diameter is used to determine the training second vibration of the piezoelectric ceramic vibrator. According to the training second vibration, a training atomization voltage signal corresponding to the training second vibration is determined. The training liquid type, the training liquid property, the training liquid film size, the training target atomized particle diameter, and the training atomization voltage signal corresponding to the training second vibration are used as the second training set.

[0076] In the embodiments of the present application, at least one of the training liquid property of the training liquid to be atomized, the training liquid type of the training liquid to be atomized, the training liquid film size of the training liquid film layer formed by at least one drop of the training liquid to be atomized on the surface of the planar structure, and the training target atomized particle diameter of the atomized particles obtained after the training liquid film layer is atomized is obtained. The training liquid type of the training liquid to be atomized can include water, ink, and drug solution, etc. The training liquid film layer is a uniform liquid film layer for training, and the training liquid film size of the training liquid film layer includes the training liquid film diameter and / or the training liquid film thickness.

[0077] In the embodiment of the present application, at least one of the training liquid type, the training liquid property, the training liquid film size, and the training target atomized particle diameter can be used to determine the training second vibration of the piezoelectric ceramic vibrator. The training second vibration of the piezoelectric ceramic vibrator refers to the training second vibration generated by the piezoelectric ceramic vibrator after the piezoelectric ceramic vibrator is driven by the high-frequency drive controller to apply a voltage signal to the piezoelectric ceramic vibrator, so that the atomized particles obtained by atomizing the training liquid film layer have the training target atomized particle diameter and are uniform.

[0078] In the embodiment of the present application, the training second vibration corresponding to the training second vibration required by the piezoelectric ceramic vibrator is determined. That is, in order to make the piezoelectric ceramic vibrator generate the training second vibration, the training atomization voltage signal needs to be applied to the piezoelectric ceramic vibrator by the high-frequency drive controller.

[0079] In the embodiment of the present application, the training second vibration includes the training second vibration amplitude and the training second vibration frequency of the piezoelectric ceramic vibrator. In the embodiment of the present application, the training second vibration amplitude and the training second vibration frequency of the piezoelectric ceramic vibrator are used to determine the training second vibration corresponding to the training atomization voltage signal by using the voltage signal calculation formula. The voltage signal calculation formula is:

[0080] wherein V is the amplitude of the training atomization voltage signal, A is the training second vibration amplitude, f is the training second vibration frequency, p is the density of the piezoelectric ceramic vibrator, L is the length of the piezoelectric ceramic vibrator, is the piezoelectric strain constant of the piezoelectric ceramic vibrator, and E is the elastic modulus of the piezoelectric ceramic vibrator, is the resonance frequency of the piezoelectric ceramic vibrator.

[0081] In the embodiment of the present application, the training liquid type, the training liquid property, the training liquid film size, the training target atomized particle diameter, and the training second vibration corresponding to the training atomization voltage signal can be used as a second training set. The second machine learning model is trained by using the second training set, and an atomization voltage signal generation model can be obtained.

[0082] In some embodiments of the present application, the training second vibration includes training second vibration amplitude and / or training second vibration frequency; the training liquid film size includes training liquid film diameter and / or training liquid film thickness of the training liquid film layer; and the determining the training second vibration of the piezoelectric ceramic vibrator by using at least one of the training liquid type, the training liquid property, the training liquid film size, and the training target atomized particle diameter includes: determining a target frequency proportionality coefficient corresponding to the training liquid type according to the training liquid type; determining the training second vibration frequency of the piezoelectric ceramic vibrator by using a second frequency calculation formula and the target frequency proportionality coefficient and the training target atomized particle diameter; the second frequency calculation formula is:

[0083] wherein, the training second vibration frequency, k is the target frequency proportionality coefficient, and d is the training target atomized particle diameter; determining the training second vibration amplitude of the piezoelectric ceramic vibrator by using a second amplitude calculation formula and at least one of the training liquid property, the training liquid film size, and the training target atomized particle diameter; the second amplitude calculation formula is:

[0084] wherein, the training second vibration amplitude, h is the training liquid film thickness, D is the training liquid film diameter, is a preset second amplitude amplification parameter.

[0085] In the embodiments of the present application, the training second vibration of the piezoelectric ceramic vibrator includes training second vibration amplitude and / or training second vibration frequency. The training liquid film size of the training liquid film layer includes training liquid film diameter and / or training liquid film thickness of the training liquid film layer.

[0086] In the embodiments of the present application, according to the training liquid type of the training liquid to be atomized, the target frequency proportionality coefficient corresponding to the training liquid type can be determined by using the relationship between the training liquid type and the frequency proportionality coefficient.

[0087] Table 1: Relationship between training liquid type and frequency proportionality coefficient

[0088] In the embodiments of the present application, the training second vibration frequency of the piezoelectric ceramic vibrator can be determined by using a second frequency calculation formula and the target frequency proportionality coefficient and the training target atomized particle diameter. The second frequency calculation formula is:

[0089] wherein, is the training second vibration frequency, k is a target frequency proportional coefficient, and d is a training target atomized particle diameter. Therefore, by using the formula, the training second vibration frequency of the piezoelectric ceramic vibrator can be calculated. If the piezoelectric ceramic vibrator vibrates at the training second vibration frequency, the diameter of the atomized particle obtained by atomizing the training liquid film layer can be the target atomized particle diameter.

[0090] In the embodiments of the present application, at least one of the training liquid properties, the training liquid film size, and the training target atomized particle diameter is used to determine the training second vibration amplitude of the piezoelectric ceramic vibrator by using the second amplitude calculation formula. The second amplitude calculation formula is:

[0091] wherein, is the training second vibration amplitude, h is the training liquid film thickness, D is the training liquid film diameter, is a preset second amplitude amplification parameter.

[0092] In the embodiments of the present application, by the other vibration amplitude critical value of the planar structure can be calculated, and if the planar structure vibrates at the vibration amplitude critical value, the training liquid film layer is at a critical atomization position. By the vibration amplitude of the planar structure that can atomize the training liquid film layer can be calculated, needs to be less than the second preset threshold value, otherwise the vibration amplitude of the planar structure is too large, which can cause the atomized particles obtained by atomizing the training liquid film layer to be uneven.

[0093] In the embodiments of the present application, the first frequency calculation formula, the second frequency calculation formula, the first amplitude calculation formula, the second amplitude calculation formula, and the voltage signal calculation formula can be used to construct accurate first and second training sets, and by using the two training sets, the required uniform voltage signal generation model and the atomized voltage signal generation model can be trained.

[0094] In the embodiments of the present application, a piezoelectric ceramic vibrator is used to apply MHz (megahertz) level high frequency vibration, and a designed amplitude conversion rod structure is used to generate vibration amplification effect. The high frequency and high amplitude vibration can cause the injected liquid to generate capillary phenomenon and promote the fragmentation and atomization of liquid molecules, so that the atomized particle diameter can be less than 30 microns or even 2 microns, which can fully support medical inhalation atomizers and industrial precision coating, and can support the precision coating application requirements of various precision machinery, optoelectronics, semiconductors, biomedicine, and other industries.

[0095] In the embodiment of the present application, a small flat plate micro-suspension particle atomizer is provided, which comprises a piezoelectric ceramic vibrator and a longitudinal-transverse wave conversion horn, the horn is a conical structure, the tip surface of which is expanded into a thin flat plate, the height dimension and the circular outer diameter dimension of which are matched with the driving fundamental frequency and the high-order frequency resonance frequency of the piezoelectric component thickness to realize the co-frequency driving vibration of the piezoelectric component and the longitudinal-transverse wave conversion horn, and to improve the conversion atomization efficiency of the liquid.

[0096] The small flat plate micro-suspension particle atomizer applies the high-frequency thickness resonance excitation longitudinal wave of the piezoelectric component, and through the design of the resonance longitudinal-transverse wave horn component, the longitudinal wave is transmitted and converted to the top plane resonance plate to form effective shear transverse wave, thereby atomizing the liquid thin layer on the surface thereof.

[0097] The piezoelectric component can be driven at the MHz-level fundamental frequency thickness resonance frequency or high-order frequency resonance, and the resonance size of the longitudinal-transverse wave conversion horn is designed, so that the same atomizer component can be driven at different single frequencies, or can be frequency-hopped to produce different atomization particle size ratios for flexible application. The atomized liquid material can be quantitatively fed by a siphon or a central feed pipe according to the surface tension characteristics of the material to form a thin liquid film layer on the resonator plate to realize rapid atomization.

[0098] The small flat plate micro-suspension particle atomizer drives the longitudinal wave thickness resonance at the fundamental frequency or high-order frequency of the single-layer thin piezoelectric sheet, transmits the vibration wave to the top resonance plate through the horn of the same frequency resonance, excites the plate to generate effective surface shear transverse wave, and directly atomizes the liquid film layer on the surface thereof at a high frequency (MHz) level to generate suspended (particle size less than 2.5 μm) atomized particles. The direct flat plate atomization can effectively overcome the need for a large space volume of traditional ultrasonic atomizers, and is suitable for narrow and small space atomization application scenarios such as masks and atomization coating.

[0099] The higher the driving frequency of the ultrasonic atomization, the smaller the suspended particle size. By using the thickness resonance driving of the piezoelectric ceramic component, the high-frequency driving can be effectively converted, and higher frequency driving can be realized on the same component to produce finer suspended particles. By changing the driving frequency and voltage, the amount and particle size distribution of the atomized suspended particles can be controlled and produced.

[0100] In the embodiments of the present application, a kind of atomizer is provided, which directly atomizes liquid film layer on surface using surface shear horizontal wave to generate small size droplet.The longitudinal wave effect generated by piezoelectric ceramic vibrator is amplified and transmitted to the end plane of transducing rod using high-frequency longitudinal wave piezoelectric component and index type or cone type amplitude transformer rod, and longitudinal wave is converted into surface horizontal wave to effectively atomize liquid film layer on surface.And using resonance driving circuit to drive thickness fundamental mode and high-order frequency mode of piezoelectric component, each mode frequency driving or frequency hopping driving can be carried out in the same component to realize the control and generation of atomized suspended particle size and particle size ratio distribution.Piezoelectric thickness fundamental frequency uses thickness thin fundamental frequency, and resonance frequency is MHz component, which can effectively generate suspended droplet with atomized particle size less than 2.5 μm, and driving and control can be realized under smaller driving voltage.Liquid material uses siphon feeding, which can be quantitatively fed by upper end surface and central inner tube.This plane atomizer has smaller space volume, can directly realize surface atomization, produce uniform suspended droplet, and can realize the control and production of suspended droplet quantity, particle size and ratio distribution by multiple fixed frequency, frequency hopping and voltage control driving.

[0101] It should be noted that, for the method embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the embodiments of the present application are not limited by the action sequence described, because according to the embodiments of the present application, certain steps can be performed in other order or simultaneously.Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions involved are not necessarily necessary for the embodiments of the present application.

[0102] Referring to Figure 3 , a structure block diagram of a control device of an atomizer provided in the embodiments of the present application is shown, which is applied to an atomizer, and the atomizer includes: piezoelectric ceramic vibrator and / or plane focusing type transducing rod; the plane focusing type transducing rod includes cone structure and / or plane structure; the plane structure is arranged at the tip position of the cone structure; the piezoelectric ceramic vibrator is connected with the bottom surface of the cone structure; and specifically can include the following modules: Liquid placing module 301 is used for placing at least one drop of liquid to be atomized on the surface of the plane structure away from the cone structure; Uniform voltage signal obtaining module 302 is used for obtaining the liquid type and at least one liquid property of the liquid to be atomized, and inputting the liquid property into a preset uniform voltage signal generation model to obtain the uniform voltage signal of the piezoelectric ceramic vibrator; The first vibration generation module 303 is configured to apply the uniform voltage signal to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a first vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the first vibration longitudinal wave output, the piezoelectric ceramic vibrator is configured to drive the planar focusing type transducing rod to vibrate, so that the planar structure generates a third vibration transverse wave output; under the action of the third vibration transverse wave output, the at least one drop of liquid to be atomized is converted into a uniform liquid film layer. The atomization voltage signal obtaining module 304 is configured to collect a liquid film size of the uniform liquid film layer, and input at least one of a preset target atomization particle diameter, a liquid type, the liquid film size and a liquid property into a preset atomization voltage signal generation model, to obtain an atomization voltage signal of the piezoelectric ceramic vibrator. The second vibration generation module 305 is configured to apply the atomization voltage signal to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a second vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the second vibration longitudinal wave output, the piezoelectric ceramic vibrator is configured to drive the planar focusing type transducing rod to vibrate, so that the planar structure generates a fourth vibration transverse wave output; under the action of the fourth vibration transverse wave output, the uniform liquid film layer is atomized into target atomization particles with the target atomization particle diameter.

[0103] In an optional embodiment of the present application, the liquid property includes at least one of a surface tension, a density, a wavelength and an angular frequency of the liquid to be atomized; and the liquid film size includes a liquid film diameter and / or a liquid film thickness of the uniform liquid film layer.

[0104] In an optional embodiment of the present application, the device comprises: The first training set construction module is configured to construct a first training set of a preset first machine learning model, and train the first machine learning model by using the first training set, to obtain the uniform voltage signal generation model. The second training set construction module is configured to construct a second training set of a preset second machine learning model, and train the second machine learning model by using the second training set, to obtain the atomization voltage signal generation model.

[0105] In an optional embodiment of the present application, the first training set construction module comprises: The training liquid property acquisition sub-module is configured to acquire a training liquid property of at least one training liquid to be atomized. The training first vibration determination sub-module is configured to determine a training first vibration corresponding to the training liquid to be atomized by using the training liquid property. The training uniform voltage signal determination submodule is configured to determine a training uniform voltage signal corresponding to the training first vibration according to the training first vibration. The first training set submodule is configured to take the training uniform voltage signal corresponding to the training first vibration and the training liquid property as the first training set.

[0106] In an optional embodiment of the present application, the training first vibration includes a training first vibration amplitude and / or a training first vibration frequency; the training liquid property includes at least one of a training surface tension, a training density, a training wavelength and a training angular frequency of the training liquid to be atomized; and the training first vibration determination submodule includes: The training first vibration frequency determination unit is configured to determine the training first vibration frequency by using a first frequency calculation formula and the training liquid property; the first frequency calculation formula is:

[0107] wherein, is the training first vibration frequency; σ is the training surface tension; ρ is the training density; and λ is the training wavelength. The training first vibration amplitude determination unit is configured to determine the training first vibration amplitude by using a first amplitude calculation formula and the training liquid property; the first amplitude calculation formula is:

[0108] wherein, is the training first vibration amplitude; and ω is the training angular frequency. is a preset first amplitude amplification parameter; and H is an amplification coefficient of the vibration amplitude of the planar focusing type transducing rod to the piezoelectric ceramic vibrator.

[0109] In an optional embodiment of the present application, the second training set construction module includes: The acquisition submodule is configured to acquire at least one of a training liquid type of the training liquid to be atomized, a training liquid film size of a training liquid film layer formed by the training liquid to be atomized and a training target atomized particle diameter. The training second vibration determination submodule is configured to determine a training second vibration of the piezoelectric ceramic vibrator by using at least one of the training liquid type, the training liquid property, the training liquid film size and the training target atomized particle diameter. The training atomization voltage signal determination submodule is configured to determine a training atomization voltage signal corresponding to the training second vibration according to the training second vibration. The second training set is used as a submodule to take the training liquid type, the training liquid property, the training liquid film size, the training target atomized particle diameter and the training second vibration corresponding training atomization voltage signal as the second training set.

[0110] In an optional embodiment of the present application, the training second vibration includes a training second vibration amplitude and / or a training second vibration frequency; the training liquid film size includes a training liquid film diameter and / or a training liquid film thickness of the training liquid film layer; and the training second vibration determination submodule includes: a target frequency proportion coefficient determination unit configured to determine a target frequency proportion coefficient corresponding to the training liquid type according to the training liquid type; a training second vibration frequency determination unit configured to determine a training second vibration frequency of the piezoelectric ceramic vibrator by using a second frequency calculation formula and the target frequency proportion coefficient and the training target atomized particle diameter; the second frequency calculation formula is:

[0111] wherein, is the training second vibration frequency, k is the target frequency proportion coefficient, and d is the training target atomized particle diameter; a training second vibration amplitude determination unit configured to determine a training second vibration amplitude of the piezoelectric ceramic vibrator by using a second amplitude calculation formula and at least one of the training liquid property, the training liquid film size and the training target atomized particle diameter; the second amplitude calculation formula is:

[0112] wherein, is the training second vibration amplitude, h is the training liquid film thickness, D is the training liquid film diameter, is a preset second amplitude amplification parameter.

[0113] For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the related parts refer to the part of the method embodiment.

[0114] In addition, the embodiments of the present application also provide an electronic device, as shown in the figure, Figure 4 which includes a processor 401, a communication interface 402, a memory 403 and a communication bus 404, wherein the processor 401, the communication interface 402 and the memory 403 complete mutual communication through the communication bus 404, the memory 403 is used to store a computer program; The processor 401 is configured to implement the following steps when executing the program stored in the memory 403: placing at least one drop of the liquid to be atomized on a surface of the planar structure facing away from the conical structure; obtaining a liquid type and at least one liquid property of the liquid to be atomized, and inputting the liquid property into a preset uniform voltage signal generation model to obtain a uniform voltage signal of the piezoelectric ceramic vibrator; applying the uniform voltage signal to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a first vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the first vibration longitudinal wave output, the piezoelectric ceramic vibrator is configured to drive the planar focusing type transducing rod to vibrate, so that the planar structure generates a third vibration transverse wave output; under the action of the third vibration transverse wave output, the at least one drop of the liquid to be atomized is converted into a uniform liquid film layer; collecting a liquid film size of the uniform liquid film layer, and inputting at least one of a preset target atomized particle diameter, the liquid type, the liquid film size, and the liquid property into a preset atomization voltage signal generation model to obtain an atomization voltage signal of the piezoelectric ceramic vibrator; applying the atomization voltage signal to the piezoelectric ceramic vibrator, so that the piezoelectric ceramic vibrator generates a second vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the second vibration longitudinal wave output, the piezoelectric ceramic vibrator is configured to drive the planar focusing type transducing rod to vibrate, so that the planar structure generates a fourth vibration transverse wave output; under the action of the fourth vibration transverse wave output, the uniform liquid film layer is atomized into target atomized particles with the target atomized particle diameter.

[0115] In an optional embodiment of the present application, the liquid property includes at least one of a surface tension, a density, a wavelength, and an angular frequency of the liquid to be atomized; and the liquid film size includes a liquid film diameter and / or a liquid film thickness of the uniform liquid film layer.

[0116] In an optional embodiment of the present application, the method comprises: constructing a first training set of a preset first machine learning model, and training the first machine learning model by using the first training set to obtain the uniform voltage signal generation model; constructing a second training set of a preset second machine learning model, and training the second machine learning model by using the second training set to obtain the atomization voltage signal generation model.

[0117] In an optional embodiment of the present application, the construction of the first training set of the preset first machine learning model comprises: Obtain at least one training liquid property for training the liquid to be atomized; Using the properties of the training liquid, determine the first training vibration corresponding to the training liquid to be atomized; Based on the first training vibration, determine the training uniform voltage signal corresponding to the first training vibration; The training liquid properties and the training uniform voltage signal corresponding to the first training vibration are used as the first training set.

[0118] In one optional embodiment of this application, the training first vibration includes the training first vibration amplitude and / or the training first vibration frequency; the training liquid properties include at least one of the training surface tension, training density, training wavelength, and training angular frequency of the training liquid to be atomized; determining the training first vibration corresponding to the training liquid to be atomized using the training liquid properties includes: Using the properties of the training liquid and the first frequency calculation formula, the first training vibration frequency is determined; the first frequency calculation formula is:

[0119] in, The training first vibration frequency is σ; the training surface tension is ρ; the training density is λ; the training wavelength is λ. Using the properties of the training liquid and the first amplitude calculation formula, the first vibration amplitude of the training is determined; the first amplitude calculation formula is:

[0120] in, The training first vibration amplitude is ω; ω is the training angular frequency. H is the preset first amplitude amplification parameter; H is the amplitude amplification factor of the piezoelectric ceramic vibrator by the planar focusing transducer.

[0121] In one optional embodiment of this application, the second training set for constructing a preset second machine learning model includes: Obtain at least one of the following: the type of training liquid to be atomized, the size of the training liquid film formed by the training liquid to be atomized, and the diameter of the training target atomized particles; The training second vibration of the piezoelectric ceramic resonator is determined by using at least one of the training liquid type, the training liquid property, the training liquid film size, and the diameter of the training target atomized particles; Based on the training second vibration, determine the training atomization voltage signal corresponding to the training second vibration; The training liquid type, the training liquid property, the training liquid film size, the training target atomized particle diameter, and the training second vibration corresponding training atomization voltage signal are taken as the second training set.

[0122] In an optional embodiment of the present application, the training second vibration includes a training second vibration amplitude and / or a training second vibration frequency; the training liquid film size includes a training liquid film diameter and / or a training liquid film thickness of the training liquid film layer; and the determination of the training second vibration of the piezoelectric ceramic vibrator by using at least one of the training liquid type, the training liquid property, the training liquid film size, and the training target atomized particle diameter includes: According to the training liquid type, a target frequency proportional coefficient corresponding to the training liquid type is determined; By using the target frequency proportional coefficient and the training target atomized particle diameter, a second frequency calculation formula is used to determine the training second vibration frequency of the piezoelectric ceramic vibrator; the second frequency calculation formula is:

[0123] Wherein, is the training second vibration frequency, k is the target frequency proportional coefficient, and d is the training target atomized particle diameter; By using at least one of the training liquid property, the training liquid film size, and the training target atomized particle diameter, a second amplitude calculation formula is used to determine the training second vibration amplitude of the piezoelectric ceramic vibrator; the second amplitude calculation formula is:

[0124] Wherein, is the training second vibration amplitude, h is the training liquid film thickness, D is the training liquid film diameter, is a preset second amplitude amplification parameter.

[0125] The communication bus mentioned above can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or only one type of bus.

[0126] The communication interface is used for communication between the terminal and other devices.

[0127] The memory can include a random access memory (RAM) and can also include a non-volatile memory such as at least one disk memory. Optionally, the memory can also be at least one storage device located remotely from the aforementioned processor.

[0128] The processor described above can be a general processor, including a central processing unit (CPU), a network processor (NP), etc.; can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component.

[0129] As shown in Figure 5 In another embodiment provided in the present application, a computer readable storage medium 501 is also provided, and the computer readable storage medium 501 stores instructions, and when the instructions run on a computer, the computer executes the control method of the atomizer described in the above embodiment.

[0130] In another embodiment provided in the present application, a computer program product containing instructions is also provided, and when the instructions run on a computer, the computer executes the control method of the atomizer described in the above embodiment.

[0131] In the embodiments described above, all or some of the steps can be implemented by hardware, software, firmware or any combination thereof. When implemented by software, all or some of the steps can be implemented in the form of one or more computer programs or program elements. The computer programs reside (at least temporarily) in a memory of a computer during execution. The memory can be a RAM memory, a flash memory, a ROM memory, an EPROM memory, or any other suitable memory. The memory can be integral to or separate from the computer. The computer programs can be written in any suitable programming language, such as C, C++, Java, Visual Basic, etc. The computer programs can be written in assembly or machine language, if desired. The computer programs can be distributed over network coupled file servers, or can be distributed by any other suitable means.

[0132] It is to be noted that the terms such as first and second, etc., are used herein merely to differentiate one entity or action from another, and do not necessarily require or imply any such actual relationship or order between such entities or actions. Also, the terms "comprising", "containing", or any other similar term are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not necessarily contain only those elements, but can contain other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0133] Each of the embodiments in the present specification is described in a related manner, and the same or similar parts among the embodiments can be referred to each other. Each of the embodiments focuses on the difference from other embodiments. In particular, for the system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the part of the description of the method embodiments.

[0134] The above merely provides the preferred embodiments of the application, and not intended to limit the protection scope of the application. Any modification, equivalent replacement, improvement, and the like made within the principle and technical scope of the application shall fall into the protection scope of the application.

Claims

1. A control method of an atomizer, characterized by, The application is applied to an atomizer, the atomizer comprises a piezoelectric ceramic vibrator and / or a planar focusing type transducer rod; the planar focusing type transducer rod comprises a tapered structure and / or a planar structure; the planar structure is arranged at a tip position of the tapered structure; the piezoelectric ceramic vibrator is connected with a bottom surface of the tapered structure; the method comprises: Placing at least one drop of liquid to be atomized on a surface of the planar structure away from the tapered structure; Obtaining a liquid type and at least one liquid property of the liquid to be atomized, and inputting the liquid property into a preset uniform voltage signal generation model to obtain a uniform voltage signal of the piezoelectric ceramic vibrator; Applying the uniform voltage signal to the piezoelectric ceramic vibrator so that the piezoelectric ceramic vibrator generates a first vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the first vibration longitudinal wave output, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate so that the planar structure generates a third vibration transverse wave output; under the action of the third vibration transverse wave output, the at least one drop of liquid to be atomized is converted into a uniform liquid film layer; Collecting a liquid film size of the uniform liquid film layer, and inputting at least one of a preset target atomized particle diameter, the liquid type, the liquid film size and the liquid property into a preset atomization voltage signal generation model to obtain an atomization voltage signal of the piezoelectric ceramic vibrator; Applying the atomization voltage signal to the piezoelectric ceramic vibrator so that the piezoelectric ceramic vibrator generates a second vibration longitudinal wave output; when the piezoelectric ceramic vibrator generates the second vibration longitudinal wave output, the piezoelectric ceramic vibrator is used to drive the planar focusing type transducer rod to vibrate so that the planar structure generates a fourth vibration transverse wave output; under the action of the fourth vibration transverse wave output, the uniform liquid film layer is atomized into target atomized particles with the target atomized particle diameter.

2. The method of claim 1, wherein, The liquid property comprises at least one of a surface tension, a density, a wavelength and an angular frequency of the liquid to be atomized; the liquid film size comprises a liquid film diameter and / or a liquid film thickness of the uniform liquid film layer.

3. The method of claim 1, wherein, The method comprises: Constructing a first training set of a preset first machine learning model, and training the first machine learning model by using the first training set to obtain the uniform voltage signal generation model; Constructing a second training set of a preset second machine learning model, and training the second machine learning model by using the second training set to obtain the atomization voltage signal generation model.

4. The method of claim 3, wherein, The construction of the first training set of the preset first machine learning model comprises: Obtaining a training liquid property of at least one training liquid to be atomized; Using the training liquid property to determine a training first vibration corresponding to the training liquid to be atomized; According to the training first vibration, determining a training uniform voltage signal corresponding to the training first vibration; The training liquid property and the training uniform voltage signal corresponding to the training first vibration are used as the first training set.

5. The method of claim 4, wherein, The training first vibration includes a training first vibration amplitude and / or a training first vibration frequency; the training liquid property includes at least one of a training surface tension, a training density, a training wavelength and a training angular frequency of the training liquid to be atomized; The determining the training first vibration corresponding to the training liquid to be atomized by using the training liquid property includes: The training first vibration frequency is determined by using a first frequency calculation formula and the training liquid property; the first frequency calculation formula is: wherein, is the training first vibration frequency; σ is the training surface tension; p is the training density; λ is the training wavelength; The training first vibration amplitude is determined by using a first amplitude calculation formula and the training liquid property; the first amplitude calculation formula is: wherein, is the training first vibration amplitude; ω is the training angular frequency; is a preset first amplitude amplification parameter; H is a vibration amplitude amplification coefficient of the planar focusing type transducing rod to the piezoelectric ceramic vibrator.

6. The method of claim 5, wherein, The second training set for constructing the preset second machine learning model includes: At least one of a training liquid type of the training liquid to be atomized, a training liquid film size of a training liquid film layer formed by the training liquid to be atomized and a training target atomized particle diameter is acquired; The training second vibration of the piezoelectric ceramic vibrator is determined by using at least one of the training liquid type, the training liquid property, the training liquid film size and the training target atomized particle diameter; The training second vibration corresponding to the training second vibration is determined according to the training second vibration; The training liquid type, the training liquid property, the training liquid film size, the training target atomized particle diameter and the training second vibration corresponding to the training atomized voltage signal are taken as the second training set.

7. The method of claim 6, wherein, The training second vibration includes a training second vibration amplitude and / or a training second vibration frequency; the training liquid film size includes a training liquid film diameter and / or a training liquid film thickness of the training liquid film layer; the determining the training second vibration of the piezoelectric ceramic vibrator by using at least one of the training liquid type, the training liquid property, the training liquid film size and the training target atomized particle diameter includes: According to the training liquid type, a target frequency proportional coefficient corresponding to the training liquid type is determined; The training second vibration frequency of the piezoelectric ceramic vibrator is determined by using a second frequency calculation formula and the target frequency proportional coefficient and the training target atomized particle diameter; the second frequency calculation formula is: wherein, is the training second vibration frequency, k is the target frequency proportionality coefficient, and d is the training target atomized particle diameter. The training second vibration amplitude of the piezoelectric ceramic vibrator is determined by using a second amplitude calculation formula and at least one of the training liquid property, the training liquid film size and the training target atomized particle diameter; the second amplitude calculation formula is: wherein, is the training second vibration amplitude, h is the training liquid film thickness, D is the training liquid film diameter, is a preset second amplitude amplification parameter.

8. A control device for an atomizer, characterized by The application is applied to an atomizer, and the atomizer includes a piezoelectric ceramic vibrator and / or a planar focusing type transducing rod; the planar focusing type transducing rod includes a conical structure and / or a planar structure; the planar structure is arranged at a tip position of the conical structure; the piezoelectric ceramic vibrator is connected with a bottom surface of the conical structure; and the device includes: A liquid placing module is configured to place at least one drop of liquid to be atomized on a surface of the planar structure away from the conical structure. The uniform voltage signal obtaining module is configured to obtain a liquid type and at least one liquid property of the liquid to be atomized, and input the liquid property into a preset uniform voltage signal generation model to obtain a uniform voltage signal of the piezoelectric ceramic vibrator; The first vibration generating module is configured to apply the uniform voltage signal to the piezoelectric ceramic vibrator to make the piezoelectric ceramic vibrator generate a first longitudinal wave output of vibration, and the piezoelectric ceramic vibrator is configured to drive the planar focusing type transducing rod to vibrate to make the planar structure generate a third transverse wave output of vibration when the piezoelectric ceramic vibrator generates the first longitudinal wave output of vibration, and the at least one drop of the liquid to be atomized is converted into a uniform liquid film layer under the action of the third transverse wave output of vibration; The atomization voltage signal obtaining module is configured to collect a liquid film size of the uniform liquid film layer, and input at least one of a preset target atomization particle diameter, the liquid type, the liquid film size and the liquid property into a preset atomization voltage signal generation model to obtain an atomization voltage signal of the piezoelectric ceramic vibrator; The second vibration generating module is configured to apply the atomization voltage signal to the piezoelectric ceramic vibrator to make the piezoelectric ceramic vibrator generate a second vibration, and the piezoelectric ceramic vibrator is configured to drive the planar focusing type transducing rod or the conical transducing rod to vibrate to make the piezoelectric ceramic vibrator generate a longitudinal wave effect amplification and transmit to the upper end plane of the transducing rod to generate a transverse wave, and atomize the uniform liquid film layer into the target atomization particle diameter of the target atomization particle.

9. An electronic device, comprising: The processor, the communication interface, and the memory are in communication with each other through the communication bus; The memory is configured to store a computer program; The processor is configured to execute the program stored on the memory to implement the method of any one of claims 1-7.

10. One or more computer-readable media having instructions stored thereon that, when executed by one or more processors, cause the processors to perform the method of any one of claims 1-7.

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