A method and system for controlling the air output of a hair dryer without electromagnetic radiation

Abstract

This application relates to the field of air outlet control technology, and in particular to a method and system for controlling the air outlet of a hair dryer without electromagnetic radiation. The method includes: acquiring the current spectrum of the motor windings, the thermal characteristics of the heating element, the cross-sectional wind speed at the air outlet, and the electromagnetic characteristics of the operating environment; analyzing the current spectrum and electromagnetic characteristics to determine the electromagnetic adjustment parameters of the air outlet; analyzing the thermal characteristics to determine the temperature change gradient, and determining the electromagnetic feedback path based on the temperature change gradient; analyzing the cross-sectional wind speed to determine the wind speed distribution, and determining the vortex electromagnetic field based on the wind speed distribution; and determining the air outlet control command of the hair dryer based on the vortex electromagnetic field, the electromagnetic adjustment parameters, and the electromagnetic feedback path. This reduces the intensity of electromagnetic radiation generated by the motor. It confines electromagnetic energy within the dielectric layer, reducing radiation interference to the outside world. Determining the mechanical deformation of the airflow guiding structure helps the electromagnetic energy interact with the airflow, reducing electromagnetic radiation.

Description

Technical Field

[0001] This application relates to the field of air outlet control technology, and in particular to a method and system for controlling the air outlet of a hair dryer without electromagnetic radiation. Background Technology

[0002] With the continuous development of hair dryer technology, improving product performance, user experience, and energy efficiency has become a key focus of research and development. This is especially true in consumer electronics, where controlling electromagnetic radiation emissions to meet safety standards is of paramount importance.

[0003] During the operation of a hair dryer, the motor windings and heating element generate electromagnetic radiation. Therefore, effectively reducing electromagnetic radiation and optimizing airflow control, especially improving the efficiency of the hair dryer while ensuring safety, has become a key challenge. Summary of the Invention

[0004] This application provides a method and system for controlling the airflow of a hair dryer without electromagnetic radiation, in order to solve the above-mentioned problems.

[0005] Firstly, this application provides a method for controlling the airflow of a hair dryer without electromagnetic radiation, the method comprising:

[0006] Obtain the current spectrum of the motor windings, the thermal characteristics of the heating element, the cross-sectional wind speed of the air outlet, and the electromagnetic characteristics of the operating environment;

[0007] Analyze the current spectrum and electromagnetic characteristics to determine the electromagnetic adjustment parameters of the air outlet;

[0008] Analyze the thermal characteristics, determine the temperature change gradient, and determine the electromagnetic feedback path based on the temperature change gradient;

[0009] Analyze the wind speed at the cross section to determine the wind speed distribution, and determine the vortex electromagnetic field based on the wind speed distribution.

[0010] The airflow control command for the blower is determined based on the vortex electromagnetic field, the electromagnetic adjustment parameters, and the electromagnetic feedback path.

[0011] This solution utilizes the following methods: Obtaining the current spectrum of the motor windings helps analyze the motor's operating state and potential electromagnetic radiation. Acquiring the thermal characteristics of the heating element helps optimize its heating efficiency and reduce the impact of thermal radiation on electromagnetic radiation. Obtaining the cross-sectional wind speed at the air outlet helps identify the airflow characteristics. Acquiring the electromagnetic characteristics of the operating environment helps analyze electromagnetic interference, providing a reference for electromagnetic radiation control. Analyzing the current spectrum helps analyze the electromagnetic characteristics generated by the motor, providing a basis for electromagnetic field phase compensation. Analyzing electromagnetic characteristics helps identify electromagnetic interference in the operating environment, providing a reference for electromagnetic radiation control. Analyzing the temperature gradient helps identify the thermal characteristics of the heating element, providing a basis for the design of the electromagnetic feedback path. Determining the electromagnetic feedback path helps confine electromagnetic energy within the blower, reducing radiation interference to the outside. Analyzing the cross-sectional wind speed helps identify the airflow characteristics at the air outlet, providing a basis for the design of the vortex electromagnetic field. Determining the vortex electromagnetic field helps to interact electromagnetic energy with airflow, reducing electromagnetic radiation. Determining the operating bandwidth of the motor drive circuit helps reduce the intensity of electromagnetic radiation generated by the motor. Determining the electric field polarization intensity of the dielectric layer helps confine electromagnetic energy within the layer, reducing radiation interference to the outside. Determining the mechanical deformation of the flow guiding structure helps the electromagnetic energy interact with the airflow, reducing electromagnetic radiation.

[0012] Optionally, determining the vortex electromagnetic field based on the wind speed distribution includes:

[0013] Based on the wind speed distribution, determine the aerodynamic load;

[0014] The phase compensation amount is determined based on the aerodynamic load.

[0015] The vortex electromagnetic field is determined by analyzing the aerodynamic load and the phase compensation amount.

[0016] This solution utilizes wind speed distribution mapping to identify airflow behavior at the air outlet, providing fundamental data for aerodynamic load and vortex electromagnetic field design. Calculating aerodynamic loads helps identify the impact of airflow on the blower, providing a basis for phase compensation. Phase compensation reduces electromagnetic radiation interference to the surrounding environment and electronic equipment, improving the blower's safety. The vortex electromagnetic field effectively modulates airflow, reducing electromagnetic radiation while maintaining efficient and comfortable airflow.

[0017] Optionally, the step of analyzing the current spectrum and the electromagnetic characteristics to determine the electromagnetic adjustment parameters of the air outlet includes:

[0018] Analyze the current spectrum to determine the fundamental component;

[0019] Analyze the electromagnetic properties to determine the field phase of the background.

[0020] The phase difference between the current spectrum and the electromagnetic properties is determined based on the fundamental component and the field phase.

[0021] The amplitude compensation coefficient is determined based on the phase difference and the fundamental component.

[0022] Based on the phase difference, determine the phase compensation coefficient;

[0023] The electromagnetic adjustment parameters of the air outlet are determined based on the phase compensation coefficient and the amplitude compensation coefficient.

[0024] This solution analyzes the current spectrum to identify the main frequency components of the motor during operation, namely the fundamental component, which helps in analyzing the motor's operating state and potential sources of electromagnetic radiation. By analyzing the electromagnetic characteristics of the operating environment, the phase of the background electromagnetic field baseline is determined, aiding in identifying the impact of the environmental electromagnetic field on the hair dryer's electromagnetic radiation. The phase difference between the current spectrum and the background electromagnetic field is calculated to determine the amount of phase compensation required to achieve phase cancellation. Based on the phase difference and the fundamental component, an amplitude compensation coefficient is determined, representing the amount of amplitude compensation required to achieve electromagnetic field amplitude cancellation. Similarly, a phase compensation coefficient is determined based on the phase difference, representing the amount of phase compensation required to achieve electromagnetic field phase cancellation. By combining the phase compensation coefficient and the amplitude compensation coefficient, electromagnetic adjustment parameters, such as reverse harmonic injection parameters and phase compensation amounts, are determined. These electromagnetic adjustment parameters are used to adjust the operating bandwidth and power output of the motor drive circuit to reduce electromagnetic radiation.

[0025] Optionally, determining the electromagnetic feedback path based on the temperature change gradient includes:

[0026] Obtain the spatial coordinates of the testing equipment;

[0027] The temperature value of the spatial coordinates is determined based on the spatial coordinates and the temperature change gradient.

[0028] Based on the temperature value, the temperature change gradient is analyzed to determine the dielectric constant gradient;

[0029] The electromagnetic feedback path is determined based on the dielectric constant gradient.

[0030] This solution acquires the spatial coordinates of the detection equipment to accurately locate temperature sensors at different positions around the heating element, providing fundamental data for temperature gradient analysis. By analyzing the spatial coordinates and temperature gradient, the temperature value at each spatial coordinate is determined, providing a basis for calculating the dielectric constant gradient. Further analysis of the temperature values ​​and gradient determines the dielectric constant gradient, identifying the propagation characteristics of electromagnetic energy in the dielectric layer and providing a theoretical foundation for designing the electromagnetic feedback path. Based on the dielectric constant gradient distribution, a feedback path for electromagnetic energy within the hair dryer is designed to ensure effective energy transfer, reduce radiation to the outside environment, and improve the safety of the hair dryer.

[0031] Optionally, determining the airflow control command for the blower based on the vortex electromagnetic field, the electromagnetic adjustment parameters, and the electromagnetic feedback path includes:

[0032] The operating bandwidth of the motor drive circuit is determined based on the electromagnetic adjustment parameters.

[0033] The electric field polarization intensity of the dielectric layer is determined based on the electromagnetic feedback path.

[0034] The mechanical deformation of the flow guiding structure is determined based on the vortex electromagnetic field.

[0035] The operating bandwidth, the electric field polarization intensity, and the mechanical deformation are used as the airflow control commands for the hair dryer.

[0036] This scheme analyzes electromagnetic adjustment parameters to identify their impact on the motor drive circuit, thereby optimizing the electromagnetic field and reducing electromagnetic radiation. Based on the electromagnetic adjustment parameters, the operating bandwidth of the motor drive circuit is determined, ensuring the circuit operates effectively within the required frequency range, thus achieving effective control of electromagnetic radiation. The electromagnetic feedback path is analyzed to identify the propagation and reflection characteristics of electromagnetic energy in the dielectric layer, providing a theoretical basis for designing the electromagnetic feedback path and optimizing electromagnetic radiation control. Based on the electromagnetic feedback path, the electric field polarization intensity of the dielectric layer is determined, optimizing the distribution and intensity of the vortex electromagnetic field to reduce electromagnetic radiation interference to the surrounding environment and electronic equipment. The intensity, distribution, and frequency characteristics of the vortex electromagnetic field are analyzed to identify its modulation effect on airflow, ensuring that the vortex electromagnetic field effectively reduces electromagnetic radiation without affecting the blower's performance. Based on the vortex electromagnetic field, flow guiding structures, such as blades and guide vanes, are designed to guide airflow and optimize the distribution of the vortex electromagnetic field, thereby reducing electromagnetic radiation. Mechanical deformation is predicted, providing a basis for optimizing the flow guiding structure. By generating airflow control commands, optimizing the material and layout of the medium layer, and adjusting the shape and material of the airflow guide structure, the distribution and speed of the airflow are optimized, and electromagnetic radiation is reduced.

[0037] Optionally, before acquiring the current spectrum of the motor windings, the thermal characteristics of the heating element, the cross-sectional wind speed of the air outlet, and the electromagnetic characteristics of the operating environment, the method further includes:

[0038] Acquire historical operating data, analyze the historical operating data, and determine the user habits of the hair dryer;

[0039] Analyze the usage habits to determine the habit patterns;

[0040] Analyze the aforementioned habit patterns to determine the health value of the patterns;

[0041] The startup mode is determined based on the health value of the mode.

[0042] This solution collects data to identify hair dryer usage habits, providing a basis for optimizing hair dryer design and control strategies. Analyzing historical operational data helps identify usage patterns, laying the foundation for habit pattern analysis. Based on the analysis of historical operational data, determining hair dryer usage habits helps identify needs and preferences, providing a basis for personalized control and optimized design. Identifying habit patterns through usage habit analysis guides hair dryer control strategies to better meet needs. Determining mode health values ​​helps assess the impact of different usage patterns on the hair dryer, providing a basis for optimizing usage patterns. Selecting modes with higher health index values ​​as the start mode helps improve the overall performance and lifespan of the hair dryer.

[0043] Optionally, before using the operating bandwidth, the electric field polarization intensity, and the mechanical deformation as the airflow control command for the hair dryer, the method further includes:

[0044] Get the remaining battery power information;

[0045] Analyze the remaining battery power information to determine energy-saving optimization factors;

[0046] An energy-saving optimization factor is incorporated into the calculation of the operating bandwidth of the motor drive circuit to obtain the energy-saving optimized operating bandwidth.

[0047] Based on the energy-efficient optimized operating bandwidth, the electric field polarization intensity, and the mechanical deformation, the final control command is regenerated.

[0048] This solution obtains battery remaining power information to provide basic data for energy-saving optimization, ensuring that the hair dryer can automatically adjust operating parameters when the battery is low, extending battery life. By determining energy-saving optimization factors, such as reducing motor power and shortening heating element operating time, battery energy consumption is reduced, extending battery life. These energy-saving optimization factors are incorporated into the calculation of the motor drive circuit's operating bandwidth, adjusting the motor's operating bandwidth to reduce energy consumption and achieve energy-saving effects. Adjusting the operating bandwidth of the motor drive circuit further reduces energy consumption and extends battery life. Based on the regenerated final control commands, the hair dryer's operating performance is optimized, improving energy efficiency.

[0049] Optionally, the step of regenerating the final control command based on the energy-optimized operating bandwidth, the electric field polarization intensity, and the mechanical deformation includes:

[0050] When the hair dryer is activated, the location where the hair dryer is used is obtained;

[0051] Analyze the usage location to determine the power limit;

[0052] Based on the power limit, the energy-efficient optimized operating bandwidth, the electric field polarization intensity, and the mechanical deformation, the final control command is regenerated.

[0053] This solution identifies the electromagnetic environment of the hair dryer by acquiring its location, providing a basis for adjusting the safe power output and ensuring the hair dryer operates within a safe range. By analyzing the location, it determines power limits to prevent interference or damage to surrounding electronic devices, while also ensuring safe operation. Based on the regenerated final control commands, it optimizes the hair dryer's performance and safety, ensuring efficient and comfortable airflow while maintaining safety.

[0054] Optionally, analyzing the cross-sectional wind speed and determining the wind speed distribution includes:

[0055] Obtain ambient temperature and humidity data;

[0056] Analyze environmental temperature and humidity data to determine environmental correction factors;

[0057] Based on the environmental correction factor, the cross-sectional wind speed is analyzed to determine the wind speed distribution.

[0058] This solution utilizes ambient temperature and humidity data to help identify the impact of environmental conditions on wind speed distribution, such as the effect of temperature and humidity on air density. Environmental correction factors help calibrate the wind speed distribution model, ensuring stable and consistent blower performance under different environments. Analyzing cross-sectional wind speeds helps identify patterns and anomalies in wind speed distribution, providing a basis for wind speed control strategies. Determining the wind speed distribution helps optimize the blower's airflow control, ensuring a uniform and comfortable wind speed distribution in various environments.

[0059] Secondly, this application provides a hair dryer with electromagnetic radiation-free air output control system, the system comprising:

[0060] The data acquisition module is used to acquire the current spectrum of the motor windings, the thermal characteristics of the heating element, the cross-sectional wind speed of the air outlet, and the electromagnetic characteristics of the operating environment.

[0061] The characteristic analysis module is used to analyze the current spectrum and the electromagnetic characteristics to determine the electromagnetic adjustment parameters of the air outlet.

[0062] The path determination module is used to analyze the thermal characteristics, determine the temperature change gradient, and determine the electromagnetic feedback path based on the temperature change gradient.

[0063] The electromagnetic field determination module is used to analyze the wind speed of the cross section, determine the wind speed distribution, and determine the vortex electromagnetic field based on the wind speed distribution.

[0064] The instruction determination module is used to determine the air outlet control instruction of the blower based on the vortex electromagnetic field, the electromagnetic adjustment parameters, and the electromagnetic feedback path.

[0065] Optionally, when the electromagnetic field determination module determines the vortex electromagnetic field based on the wind speed distribution, it is used for:

[0066] Based on the wind speed distribution, determine the aerodynamic load;

[0067] The phase compensation amount is determined based on the aerodynamic load.

[0068] The vortex electromagnetic field is determined by analyzing the aerodynamic load and the phase compensation amount.

[0069] Optionally, when the characteristic analysis module analyzes the current spectrum and the electromagnetic characteristics to determine the electromagnetic adjustment parameters of the air outlet, it is used for:

[0070] Analyze the current spectrum to determine the fundamental component;

[0071] Analyze the electromagnetic properties to determine the field phase of the background.

[0072] The phase difference between the current spectrum and the electromagnetic properties is determined based on the fundamental component and the field phase.

[0073] The amplitude compensation coefficient is determined based on the phase difference and the fundamental component.

[0074] Based on the phase difference, determine the phase compensation coefficient;

[0075] The electromagnetic adjustment parameters of the air outlet are determined based on the phase compensation coefficient and the amplitude compensation coefficient.

[0076] Optionally, when the path determination module determines the electromagnetic feedback path based on the temperature change gradient, it is used to:

[0077] Obtain the spatial coordinates of the testing equipment;

[0078] The temperature value of the spatial coordinates is determined based on the spatial coordinates and the temperature change gradient.

[0079] Based on the temperature value, the temperature change gradient is analyzed to determine the dielectric constant gradient;

[0080] The electromagnetic feedback path is determined based on the dielectric constant gradient.

[0081] Optionally, when the instruction determining module determines the airflow control instruction for the blower based on the vortex electromagnetic field, the electromagnetic adjustment parameters, and the electromagnetic feedback path, it is used to:

[0082] The operating bandwidth of the motor drive circuit is determined based on the electromagnetic adjustment parameters.

[0083] The electric field polarization intensity of the dielectric layer is determined based on the electromagnetic feedback path.

[0084] The mechanical deformation of the flow guiding structure is determined based on the vortex electromagnetic field.

[0085] The operating bandwidth, the electric field polarization intensity, and the mechanical deformation are used as the airflow control commands for the hair dryer.

[0086] Optionally, the hair dryer's electromagnetic radiation-free airflow control system further includes a mode determination module, used for:

[0087] Acquire historical operating data, analyze the historical operating data, and determine the user habits of the hair dryer;

[0088] Analyze the usage habits to determine the habit patterns;

[0089] Analyze the aforementioned habit patterns to determine the health value of the patterns;

[0090] The startup mode is determined based on the health value of the mode.

[0091] Optionally, the hair dryer's electromagnetic radiation-free air outlet control system further includes an instruction generation module, used for:

[0092] Get the remaining battery power information;

[0093] Analyze the remaining battery power information to determine energy-saving optimization factors;

[0094] An energy-saving optimization factor is incorporated into the calculation of the operating bandwidth of the motor drive circuit to obtain the energy-saving optimized operating bandwidth.

[0095] Based on the energy-efficient optimized operating bandwidth, the electric field polarization intensity, and the mechanical deformation, the final control command is regenerated.

[0096] Optionally, when the instruction generation module regenerates the final control instruction based on the energy-optimized operating bandwidth, the electric field polarization intensity, and the mechanical deformation, it is used for:

[0097] When the hair dryer is activated, the location where the hair dryer is used is obtained;

[0098] Analyze the usage location to determine the power limit;

[0099] Based on the power limit, the energy-efficient optimized operating bandwidth, the electric field polarization intensity, and the mechanical deformation, the final control command is regenerated.

[0100] Optionally, when the electromagnetic field determination module analyzes the cross-sectional wind speed and determines the wind speed distribution, it is used for:

[0101] Obtain ambient temperature and humidity data;

[0102] Analyze environmental temperature and humidity data to determine environmental correction factors;

[0103] Based on the environmental correction factor, the cross-sectional wind speed is analyzed to determine the wind speed distribution. Attached Figure Description

[0104] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0105] Figure 1 This is a schematic diagram of an application scenario provided in an embodiment of this application;

[0106] Figure 2A flowchart illustrating a method for controlling the airflow of a hair dryer without electromagnetic radiation, provided in one embodiment of this application;

[0107] Figure 3 This is a schematic diagram of a hair dryer's electromagnetic radiation-free air outlet control system provided in one embodiment of this application. Detailed Implementation

[0108] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0109] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.

[0110] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0111] During the operation of a hair dryer, the motor windings and heating element generate electromagnetic radiation. Therefore, effectively reducing electromagnetic radiation and optimizing airflow control, especially improving the efficiency of the hair dryer while ensuring safety, has become a key challenge.

[0112] Based on this, this application provides a method and system for controlling the airflow of a hair dryer without electromagnetic radiation. The method involves acquiring the current spectrum of the motor windings, the thermal characteristics of the heating element, the cross-sectional wind speed at the air outlet, and the electromagnetic characteristics of the operating environment. Analyzing the current spectrum and electromagnetic characteristics, the method determines the electromagnetic adjustment parameters of the air outlet. Analyzing the thermal characteristics, the method determines the temperature change gradient and, based on the temperature change gradient, determines the electromagnetic feedback path. Analyzing the cross-sectional wind speed, the method determines the wind speed distribution and, based on the wind speed distribution, determines the vortex electromagnetic field. Based on the vortex electromagnetic field, the electromagnetic adjustment parameters, and the electromagnetic feedback path, the method determines the airflow control command for the hair dryer. Acquiring the current spectrum of the motor windings helps analyze the motor's operating state and potential electromagnetic radiation. Acquiring the thermal characteristics of the heating element helps optimize the heating efficiency of the heating element and reduce the impact of thermal radiation on electromagnetic radiation. Acquiring the cross-sectional wind speed at the air outlet helps identify the airflow characteristics of the air outlet. Acquiring the electromagnetic characteristics of the operating environment helps analyze the electromagnetic interference situation in the operating environment and provides a reference for electromagnetic radiation control. Analyzing the current spectrum helps analyze the electromagnetic characteristics generated by the motor and provides a basis for the electromagnetic field phase compensation. Analyzing electromagnetic characteristics helps identify electromagnetic interference in the operating environment, providing a reference for electromagnetic radiation control. Analyzing temperature gradients helps identify the thermal characteristics of heating elements, providing a basis for the design of electromagnetic feedback paths. Determining the electromagnetic feedback path helps confine electromagnetic energy within the blower, reducing radiation interference to the outside. Analyzing the cross-sectional wind speed helps identify the airflow characteristics at the outlet, providing a basis for the design of vortex electromagnetic fields. Determining the vortex electromagnetic field helps to interact electromagnetic energy with airflow, reducing electromagnetic radiation. Determining the operating bandwidth of the motor drive circuit helps to reduce the intensity of electromagnetic radiation generated by the motor. Determining the electric field polarization intensity of the dielectric layer helps to confine electromagnetic energy within the dielectric layer, reducing radiation interference to the outside. Determining the mechanical deformation of the flow guiding structure helps to interact electromagnetic energy with airflow, reducing electromagnetic radiation.

[0113] Figure 1 This is a schematic diagram illustrating an application scenario of this application, where the method provided in this application is applied in the context of controlling the airflow of a hair dryer.

[0114] Specifically, the method provided in this application can be applied to any control chip. The control chip interacts with several sensors in the hair dryer, acquiring the current spectrum of the motor windings through these sensors, which helps analyze the motor's operating state and potential electromagnetic radiation. Acquiring the thermal characteristics of the heating element helps optimize its heating efficiency and reduce the impact of thermal radiation on electromagnetic radiation. Acquiring the cross-sectional wind speed at the air outlet helps identify the airflow characteristics. Acquiring the electromagnetic characteristics of the operating environment helps analyze electromagnetic interference, providing a reference for electromagnetic radiation control. Analyzing the current spectrum helps analyze the electromagnetic characteristics generated by the motor, providing a basis for electromagnetic field phase compensation. Analyzing electromagnetic characteristics helps identify electromagnetic interference in the operating environment, providing a reference for electromagnetic radiation control. Analyzing the temperature change gradient helps identify the thermal characteristics of the heating element, providing a basis for the design of the electromagnetic feedback path. Determining the electromagnetic feedback path helps confine electromagnetic energy within the hair dryer, reducing radiation interference to the outside. Analyzing the cross-sectional wind speed helps identify the airflow characteristics at the air outlet, providing a basis for the design of the vortex electromagnetic field. Determining the vortex electromagnetic field helps to interact electromagnetic energy with the airflow, reducing electromagnetic radiation. Determining the operating bandwidth of the motor drive circuit helps reduce the intensity of electromagnetic radiation generated by the motor. Determining the electric field polarization intensity of the dielectric layer helps confine electromagnetic energy within the dielectric layer, reducing radiation interference to the outside world. Determining the mechanical deformation of the flow guiding structure helps the electromagnetic energy interact with the airflow, reducing electromagnetic radiation.

[0115] For specific implementation details, please refer to the following examples.

[0116] Figure 2 This is a flowchart illustrating a method for controlling the airflow of a hair dryer without electromagnetic radiation, as provided in one embodiment of this application. The method of this embodiment can be applied to control chips in the above-mentioned scenarios. For example... Figure 2 As shown, the method includes:

[0117] S201. Obtain the current spectrum of the motor windings, the thermal characteristics of the heating element, the cross-sectional wind speed of the air outlet, and the electromagnetic characteristics of the operating environment.

[0118] The motor winding is one of the core components of a motor. It consists of wires wound around an iron core. When current passes through the winding, a magnetic field is generated around the winding, thereby driving the motor to rotate.

[0119] The current spectrum can be the distribution of frequency components of current as it changes over time.

[0120] The heating element can be the part of a hair dryer that generates heat, and it is made of resistance wire.

[0121] Thermal characteristics can be the surface temperature field of the heating element.

[0122] The air outlet can be the part of the hair dryer that outputs air, located on the front or side of the hair dryer.

[0123] Cross-sectional wind speed can be the wind speed distribution on the cross-section of the air outlet of a hair dryer.

[0124] The usage environment can be the surrounding environment of the hair dryer, such as the electromagnetic environment, temperature environment, and humidity environment.

[0125] Electromagnetic properties can refer to the characteristics of the electromagnetic field generated by a hair dryer during operation, such as intensity, frequency, and distribution.

[0126] Specifically, a current sensor acquires the current signal of the motor windings in real time, and Fourier transform is used to analyze the frequency components of the current to obtain the current spectrum. A temperature sensor monitors the surface temperature of the heating element, and an infrared sensor acquires its thermal characteristics. A pressure sensor measures the airflow velocity at the outlet to obtain the cross-sectional wind speed. An electromagnetic field detector monitors the electromagnetic field strength and wind speed distribution of the operating environment to obtain the electromagnetic characteristics.

[0127] S202. Analyze the current spectrum and electromagnetic characteristics to determine the electromagnetic adjustment parameters of the air outlet;

[0128] The electromagnetic adjustment parameter can be the reverse harmonic injection parameter, so that the combined electromagnetic field strength at the air outlet is lower than the set threshold.

[0129] Specifically, the process involves analyzing the current spectrum to identify the fundamental and harmonic components, as well as their amplitudes and phases. Electromagnetic characteristics are analyzed to determine the frequency and phase characteristics of the ambient electromagnetic field, establishing a background electromagnetic field baseline—the level of the electromagnetic field when the hair dryer is not operating. The phase difference between the electromagnetic field generated by the hair dryer and the background electromagnetic field baseline is then determined. Based on the harmonic components and phase difference in the current spectrum, the reverse harmonic injection parameters, i.e., the electromagnetic adjustment parameters, are calculated.

[0130] S203. Analyze the thermal characteristics, determine the temperature change gradient, and determine the electromagnetic feedback path based on the temperature change gradient.

[0131] The temperature gradient can be the rate of change of the temperature around the heating element with respect to its spatial location.

[0132] The electromagnetic feedback path can be the path for the transmission of electromagnetic energy inside a hair dryer.

[0133] Specifically, based on the principle of energy localization constraint, the local temperature change gradient of the temperature field is analyzed. By analyzing the temperature change gradient, the rate of temperature change around the heating element with spatial location is determined, and the gradient distribution function of the dielectric constant of the dielectric layer is calculated. Based on the temperature change gradient and the gradient distribution function of the dielectric constant of the dielectric layer, an internal feedback path for electromagnetic energy is formed.

[0134] S204. Analyze the cross-sectional wind speed, determine the wind speed distribution, and determine the vortex electromagnetic field based on the wind speed distribution.

[0135] The wind speed distribution can be the wind speed at different locations on the air outlet cross-section.

[0136] A vortex electromagnetic field can be a rotating electromagnetic field generated at the air outlet.

[0137] Specifically, the collected cross-sectional wind speeds are processed using data analysis software to create a wind speed distribution map of the air outlet cross-section. A velocity field model is then established based on this map to analyze the wind speed distribution at the outlet. Based on the wind speed distribution, the aerodynamic loads at the outlet, i.e., the pressure distribution of the airflow on the outlet cross-section, are calculated. The phase compensation is then calculated based on the aerodynamic loads. Finally, a vortex electromagnetic field is designed based on the phase compensation.

[0138] S205. Determine the airflow control command of the blower based on the vortex electromagnetic field, electromagnetic adjustment parameters, and electromagnetic feedback path.

[0139] Airflow control commands can be used to control the airflow speed and temperature of a hair dryer.

[0140] Specifically, based on the vortex electromagnetic field, the mechanical deformation of the flow guide structure is adjusted to determine its mechanical deformation. Based on the electromagnetic adjustment parameters, the operating frequency and power of the motor drive circuit are adjusted to determine its operating bandwidth. Based on the electromagnetic feedback path, the electric field polarization intensity of the dielectric layer is adjusted to determine its electric field polarization intensity. The electromagnetic feedback path achieves energy localization by setting multiple gradient dielectric constant layers. An electromagnetic wave absorbing layer made of ferrite material is set on the inner wall of the blower casing, and its surface is covered with a ceramic composite material layer with a dielectric constant gradient. When electromagnetic waves propagate to this composite layer, the refractive index change caused by the dielectric constant gradient causes total reflection between the layers, ultimately guiding the energy to the electromagnetic energy recovery coil near the motor windings through a ring waveguide structure. By combining the effects of the vortex electromagnetic field, electromagnetic adjustment parameters, and electromagnetic feedback path, the blower's airflow control command is generated.

[0141] This solution utilizes the following methods: Obtaining the current spectrum of the motor windings helps analyze the motor's operating state and potential electromagnetic radiation. Acquiring the thermal characteristics of the heating element helps optimize its heating efficiency and reduce the impact of thermal radiation on electromagnetic radiation. Obtaining the cross-sectional wind speed at the air outlet helps identify the airflow characteristics. Acquiring the electromagnetic characteristics of the operating environment helps analyze electromagnetic interference, providing a reference for electromagnetic radiation control. Analyzing the current spectrum helps analyze the electromagnetic characteristics generated by the motor, providing a basis for electromagnetic field phase compensation. Analyzing electromagnetic characteristics helps identify electromagnetic interference in the operating environment, providing a reference for electromagnetic radiation control. Analyzing the temperature gradient helps identify the thermal characteristics of the heating element, providing a basis for the design of the electromagnetic feedback path. Determining the electromagnetic feedback path helps confine electromagnetic energy within the blower, reducing radiation interference to the outside. Analyzing the cross-sectional wind speed helps identify the airflow characteristics at the air outlet, providing a basis for the design of the vortex electromagnetic field. Determining the vortex electromagnetic field helps to interact electromagnetic energy with airflow, reducing electromagnetic radiation. Determining the operating bandwidth of the motor drive circuit helps reduce the intensity of electromagnetic radiation generated by the motor. Determining the electric field polarization intensity of the dielectric layer helps confine electromagnetic energy within the layer, reducing radiation interference to the outside. Determining the mechanical deformation of the flow guiding structure helps the electromagnetic energy interact with the airflow, reducing electromagnetic radiation.

[0142] In some embodiments, the aerodynamic load is determined based on the wind speed distribution; the phase compensation amount is determined based on the aerodynamic load; and the vortex electromagnetic field is determined by analyzing the aerodynamic load and the phase compensation amount.

[0143] The aerodynamic load can be the pressure distribution of airflow on the cross-section of the blower outlet, which is measured by an array of piezoelectric sensors arranged at the outlet.

[0144] Phase compensation can be the amount of phase that needs to be compensated in electromagnetic radiation control to reduce the interference of electromagnetic radiation on the surrounding environment and electronic equipment.

[0145] Specifically, data analysis software is used to process the wind speed distribution and generate a wind speed distribution map. Based on the wind speed distribution, aerodynamic loads are calculated and input to a vortex electromagnetic field generator after fast Fourier transform. The vortex electromagnetic field generator contains electromagnetic coils arranged in an Archimedean spiral, with the phase difference of their excitation current controlled by θ = 2πn / N (n = 0, 1, ... N-1), generating a ring-shaped magnetic field, i.e., a vortex electromagnetic field, whose rotation direction matches the tangential velocity component of the airflow. The impact of the aerodynamic loads on the blower's structure and performance is analyzed to determine the required phase compensation. The phase compensation is calculated based on the aerodynamic loads. Combining the wind speed distribution map and the calculated phase compensation, the vortex electromagnetic field is designed.

[0146] This solution utilizes wind speed distribution mapping to identify airflow behavior at the air outlet, providing fundamental data for aerodynamic load and vortex electromagnetic field design. Calculating aerodynamic loads helps identify the impact of airflow on the blower, providing a basis for phase compensation. Phase compensation reduces electromagnetic radiation interference to the surrounding environment and electronic equipment, improving the blower's safety. The vortex electromagnetic field effectively modulates airflow, reducing electromagnetic radiation while maintaining efficient and comfortable airflow.

[0147] In some embodiments, the current spectrum is analyzed to determine the fundamental component; the electromagnetic characteristics are analyzed to determine the field phase of the background; the phase difference between the current spectrum and the electromagnetic characteristics is determined based on the fundamental component and the field phase; the amplitude compensation coefficient is determined based on the phase difference and the fundamental component; the phase compensation coefficient is determined based on the phase difference; and the electromagnetic adjustment parameters of the air outlet are determined based on the phase compensation coefficient and the amplitude compensation coefficient.

[0148] The fundamental component can be the main frequency component in the current spectrum, corresponding to the operating frequency of the motor.

[0149] The background for use can be the electromagnetic environment in which the hair dryer is located.

[0150] Field phase can be the phase angle of voltage or current in an electromagnetic field.

[0151] The phase difference can be the phase angle difference between the current spectrum and the background electromagnetic field.

[0152] The amplitude compensation coefficient can be used to adjust the amplitude of the electromagnetic field.

[0153] The phase compensation coefficient can be a coefficient used to adjust the phase of the electromagnetic field.

[0154] Specifically, the fundamental and harmonic components in the current spectrum are identified, and their amplitudes and phases are recorded. The electromagnetic field strength and distribution around the hair dryer are measured using an electromagnetic field detector. The background electromagnetic field baseline is analyzed, i.e., the electromagnetic field level of the environment when the hair dryer is not operating. The phase difference between the electromagnetic field generated when the hair dryer is operating and the background electromagnetic field baseline is determined. The field phase of the background electromagnetic field is determined by measurement or calculation. Based on the fundamental and harmonic components in the current spectrum and the phase difference with the background electromagnetic field baseline, the phase difference between the current spectrum and the electromagnetic characteristics is calculated. Based on the phase difference and the fundamental component, the amplitude compensation coefficient is determined. Based on the phase difference, the phase compensation coefficient used to adjust the phase of the motor drive circuit is determined. Based on the phase compensation coefficient and the amplitude compensation coefficient, the electromagnetic adjustment parameters of the air outlet are determined.

[0155] This solution analyzes the current spectrum to identify the main frequency components of the motor during operation, namely the fundamental component, which helps in analyzing the motor's operating state and potential sources of electromagnetic radiation. By analyzing the electromagnetic characteristics of the operating environment, the phase of the background electromagnetic field baseline is determined, aiding in identifying the impact of the environmental electromagnetic field on the hair dryer's electromagnetic radiation. The phase difference between the current spectrum and the background electromagnetic field is calculated to determine the amount of phase compensation required to achieve phase cancellation. Based on the phase difference and the fundamental component, an amplitude compensation coefficient is determined, representing the amount of amplitude compensation required to achieve electromagnetic field amplitude cancellation. Similarly, a phase compensation coefficient is determined based on the phase difference, representing the amount of phase compensation required to achieve electromagnetic field phase cancellation. By combining the phase compensation coefficient and the amplitude compensation coefficient, electromagnetic adjustment parameters, such as reverse harmonic injection parameters and phase compensation amounts, are determined. These electromagnetic adjustment parameters are used to adjust the operating bandwidth and power output of the motor drive circuit to reduce electromagnetic radiation.

[0156] In some embodiments, the spatial coordinates of the detection device are obtained; the temperature value of the spatial coordinates is determined based on the spatial coordinates and the temperature change gradient; the temperature change gradient is analyzed based on the temperature value to determine the dielectric constant gradient; and the electromagnetic feedback path is determined based on the dielectric constant gradient.

[0157] The detection device can be a temperature sensor used to monitor the temperature status during the operation of the hair dryer.

[0158] Spatial coordinates can be the coordinate values ​​of the detection device in the x, y, and z directions in three-dimensional space.

[0159] The temperature value can be the temperature value measured by the testing equipment, usually in degrees Celsius (°C).

[0160] The dielectric constant gradient can be the rate of change of the dielectric constant with spatial position, and is usually expressed as the change in dielectric constant per unit length.

[0161] Specifically, a positioning device is used to obtain the spatial coordinates of the detection device. Based on the temperature gradient, interpolation methods such as linear interpolation and polynomial interpolation are used to determine the temperature values ​​of the spatial coordinates. Based on the temperature values, the influence of the temperature gradient on the dielectric constant gradient of the surrounding medium is analyzed, and the dielectric constant gradient of the medium layer is calculated. Based on the dielectric constant gradient, a feedback path for electromagnetic energy within the blower is designed.

[0162] This solution acquires the spatial coordinates of the detection equipment to accurately locate temperature sensors at different positions around the heating element, providing fundamental data for temperature gradient analysis. By analyzing the spatial coordinates and temperature gradient, the temperature value at each spatial coordinate is determined, providing a basis for calculating the dielectric constant gradient. Further analysis of the temperature values ​​and gradient determines the dielectric constant gradient, identifying the propagation characteristics of electromagnetic energy in the dielectric layer and providing a theoretical foundation for designing the electromagnetic feedback path. Based on the dielectric constant gradient distribution, a feedback path for electromagnetic energy within the hair dryer is designed to ensure effective energy transfer, reduce radiation to the outside environment, and improve the safety of the hair dryer.

[0163] In some embodiments, the operating bandwidth of the motor drive circuit is determined based on electromagnetic adjustment parameters; the electric field polarization intensity of the dielectric layer is determined based on the electromagnetic feedback path; the mechanical deformation of the flow guiding structure is determined based on the vortex electromagnetic field; and the operating bandwidth, electric field polarization intensity, and mechanical deformation are used as the air outlet control commands for the blower.

[0164] A motor drive circuit can be an electronic circuit that controls the operation of a motor.

[0165] The operating bandwidth can be the frequency range in which the motor drive circuit can effectively operate.

[0166] The dielectric layer can be an insulating material or other material layer used in a hair dryer to isolate or guide electromagnetic fields.

[0167] Electric field polarization intensity can be defined as the degree of charge redistribution caused by an electric field in a dielectric layer.

[0168] The airflow guiding structure can be a blade, deflector, or other structure used in a hair dryer to guide airflow.

[0169] Mechanical deformation can be the degree of deformation of a flow guiding structure under the action of external force.

[0170] Specifically, the electromagnetic adjustment parameters are analyzed to identify their impact on the motor drive circuit and determine the required bandwidth of the motor drive circuit. Based on these requirements, the motor drive circuit is designed. The operating bandwidth of the motor drive circuit is determined based on the design and electromagnetic adjustment parameters. The electromagnetic feedback path is analyzed to determine its impact on the electric field polarization intensity of the dielectric layer. The dielectric constant, loss tangent, and other material properties of the dielectric layer are analyzed to determine the electric field polarization intensity of the dielectric layer under different electromagnetic environments. Based on the electromagnetic feedback path design and dielectric layer properties, the electric field polarization intensity distribution of the dielectric layer is calculated. The intensity, distribution, and frequency characteristics of the vortex electromagnetic field are analyzed. Guide structures such as blades and deflectors are designed to guide airflow and optimize the distribution of the vortex electromagnetic field. Based on the characteristics of the vortex electromagnetic field, the deformation degree of the guide structure under external forces is calculated. Finite element analysis is used to predict the mechanical deformation of the guide structure under different electromagnetic field conditions. The deformation is monitored in real time by a laser displacement sensor, and the current amplitude of the electromagnetic field generator is adjusted accordingly. This causes charged particles in the airflow to move along a preset trajectory under the action of the Lorentz force, thereby reducing the intensity of electromagnetic radiation. The working bandwidth, electric field polarization intensity, and mechanical deformation are integrated into the airflow control command of the blower, thus generating the airflow control command.

[0171] This scheme analyzes electromagnetic adjustment parameters to identify their impact on the motor drive circuit, thereby optimizing the electromagnetic field and reducing electromagnetic radiation. Based on the electromagnetic adjustment parameters, the operating bandwidth of the motor drive circuit is determined, ensuring the circuit operates effectively within the required frequency range, thus achieving effective control of electromagnetic radiation. The electromagnetic feedback path is analyzed to identify the propagation and reflection characteristics of electromagnetic energy in the dielectric layer, providing a theoretical basis for designing the electromagnetic feedback path and optimizing electromagnetic radiation control. Based on the electromagnetic feedback path, the electric field polarization intensity of the dielectric layer is determined, optimizing the distribution and intensity of the vortex electromagnetic field to reduce electromagnetic radiation interference to the surrounding environment and electronic equipment. The intensity, distribution, and frequency characteristics of the vortex electromagnetic field are analyzed to identify its modulation effect on airflow, ensuring that the vortex electromagnetic field effectively reduces electromagnetic radiation without affecting the blower's performance. Based on the vortex electromagnetic field, flow guiding structures, such as blades and guide vanes, are designed to guide airflow and optimize the distribution of the vortex electromagnetic field, thereby reducing electromagnetic radiation. Mechanical deformation is predicted, providing a basis for optimizing the flow guiding structure. By generating airflow control commands, optimizing the material and layout of the medium layer, and adjusting the shape and material of the airflow guide structure, the distribution and speed of the airflow are optimized, and electromagnetic radiation is reduced.

[0172] In some embodiments, historical operating data is acquired, analyzed, and the user's hair dryer usage habits are determined; the user's usage habits are analyzed to determine the habit mode; the habit mode is analyzed to determine the mode health value; and the activation mode is determined based on the mode health value.

[0173] Historical operating data can be usage records of the hair dryer over a past period, including usage time, power settings, fan speed, and temperature settings. This past period can be obtained based on experience or defined by the user.

[0174] Usage habits can be stable usage patterns formed over a long period of time when using a hair dryer.

[0175] A habitual pattern can be a series of stable usage patterns formed when using a hair dryer.

[0176] The mode health value can be the degree to which the user's habit mode affects the performance and energy efficiency of the hair dryer.

[0177] The startup mode can be the default operating mode of the hair dryer when it is started, such as the power level, fan speed level, and temperature setting.

[0178] Specifically, built-in sensors collect historical operating data on the hair dryer, including usage time, power setting, fan speed, temperature setting, and start-up and shutdown times. Analyzing this historical data identifies usage patterns such as power setting, fan speed, and frequency of use. By analyzing this historical data, usage habits are determined. Cluster analysis, decision trees, and neural networks are applied to pattern recognition of these habits. Features such as power setting, fan speed, and usage time for different patterns are extracted. Based on these features, habitual patterns are determined. These habitual patterns are evaluated for motor wear and heating element loss, analyzing the impact of each pattern on the hair dryer's performance, energy efficiency, and lifespan. Evaluation indicators for pattern health values, such as motor lifespan and heating element loss rate, are defined. Statistical analysis methods are used to determine the health indicator values ​​for each habitual pattern. The health indicator values ​​of different habitual patterns are compared, and the comparison results are analyzed to determine the habitual pattern with the higher health indicator value as the activation mode.

[0179] This solution collects data to identify hair dryer usage habits, providing a basis for optimizing hair dryer design and control strategies. Analyzing historical operational data helps identify usage patterns, laying the foundation for habit pattern analysis. Based on the analysis of historical operational data, determining hair dryer usage habits helps identify needs and preferences, providing a basis for personalized control and optimized design. Identifying habit patterns through usage habit analysis guides hair dryer control strategies to better meet needs. Determining mode health values ​​helps assess the impact of different usage patterns on the hair dryer, providing a basis for optimizing usage patterns. Selecting modes with higher health index values ​​as the start mode helps improve the overall performance and lifespan of the hair dryer.

[0180] In some embodiments, the remaining battery power information is obtained; the remaining battery power information is analyzed to determine the energy-saving optimization factor; the energy-saving optimization factor is introduced into the calculation of the operating bandwidth of the motor drive circuit to obtain the energy-saving optimized operating bandwidth; based on the energy-saving optimized operating bandwidth, electric field polarization intensity and mechanical deformation, the final control command is regenerated.

[0181] Battery remaining power information can be the current remaining available electrical energy of the battery, usually expressed in milliampere-hours (m / Ah).

[0182] Energy-saving optimization factors can be adjustment parameters introduced to reduce energy consumption while ensuring the normal operation of the hair dryer.

[0183] Energy-saving optimization can be the process of reducing energy consumption by adjusting operating parameters and strategies while ensuring the performance of the hair dryer.

[0184] Control commands can be instructions issued by control devices to control the operating mode and performance of the hair dryer.

[0185] Specifically, battery monitoring sensors are used to acquire remaining battery power information. This information is analyzed to assess the battery's health and remaining usage time. Based on this information, energy-saving goals are set, such as extending battery life and reducing energy consumption. Energy-saving optimization factors, such as power limitation coefficients and operating time adjustment coefficients, are calculated based on these goals. The operating bandwidth of the motor drive circuit is analyzed to identify its frequency characteristics under different power outputs. An adjustment strategy for the motor drive circuit's operating bandwidth is developed based on these energy-saving optimization factors. These factors are then applied to the calculation of the motor drive circuit's operating bandwidth to obtain the optimized bandwidth. Finally, the optimized bandwidth, electric field polarization intensity, and mechanical deformation are reintegrated into the blower control command to generate the final control command.

[0186] This solution obtains battery remaining power information to provide basic data for energy-saving optimization, ensuring that the hair dryer can automatically adjust operating parameters when the battery is low, extending battery life. By determining energy-saving optimization factors, such as reducing motor power and shortening heating element operating time, battery energy consumption is reduced, extending battery life. These energy-saving optimization factors are incorporated into the calculation of the motor drive circuit's operating bandwidth, adjusting the motor's operating bandwidth to reduce energy consumption and achieve energy-saving effects. Adjusting the operating bandwidth of the motor drive circuit further reduces energy consumption and extends battery life. Based on the regenerated final control commands, the hair dryer's operating performance is optimized, improving energy efficiency.

[0187] In some embodiments, when the hair dryer is activated, the location of the hair dryer is obtained; the location of the hair dryer is analyzed to determine the power limit; and the final control command is regenerated based on the power limit, the energy-saving optimized operating bandwidth, the electric field polarization intensity, and the mechanical deformation.

[0188] The location of use can be the specific location and environmental conditions under which the hair dryer is used.

[0189] Power limits can be upper limits set at the location of use to avoid electromagnetic radiation affecting surrounding electronic equipment.

[0190] Specifically, GPS positioning is used to determine the location of the hair dryer. The location is then assessed to determine its relative position to the surrounding environment and to analyze whether it is near areas sensitive to electromagnetic radiation. The electromagnetic radiation level generated by the hair dryer at its location is evaluated to determine if it exceeds safety standards. Based on the electromagnetic compatibility requirements of surrounding electronic equipment, the maximum safe power output of the hair dryer is determined. A safe power threshold is determined with reference to electromagnetic radiation safety standards. Based on the safe power threshold, the power limit of the hair dryer is determined. Based on the power limit, the energy-optimized operating bandwidth, electric field polarization intensity, and mechanical deformation, the final control commands are regenerated.

[0191] This solution identifies the electromagnetic environment of the hair dryer by acquiring its location, providing a basis for adjusting the safe power output and ensuring the hair dryer operates within a safe range. By analyzing the location, it determines power limits to prevent interference or damage to surrounding electronic devices, while also ensuring safe operation. Based on the regenerated final control commands, it optimizes the hair dryer's performance and safety, ensuring efficient and comfortable airflow while maintaining safety.

[0192] In some embodiments, ambient temperature and humidity data are acquired; the ambient temperature and humidity data are analyzed to determine an environmental correction factor; and based on the environmental correction factor, the cross-sectional wind speed is analyzed to determine the wind speed distribution.

[0193] The ambient temperature and humidity data can be the temperature and humidity data of the environment in which the hair dryer is located.

[0194] The environmental correction factor can be a coefficient calculated based on ambient temperature and humidity data to adjust the operating parameters of a hair dryer.

[0195] Specifically, select a suitable temperature and humidity sensor and install it inside or outside the hair dryer. Design a data acquisition interface to connect the temperature and humidity sensor to the hair dryer's control device to collect ambient temperature and humidity data in real time. Perform preprocessing such as data cleaning, filtering, and noise reduction on the collected ambient temperature and humidity data. Calculate the average, standard deviation, maximum, and minimum values ​​of the preprocessed ambient temperature and humidity data for statistical analysis. Based on the data analysis results, establish environmental correction factor models such as temperature correction coefficient and humidity correction coefficient. Calculate specific environmental correction factors according to the environmental correction factor models. Perform statistical analysis on the cross-sectional wind speed, including average wind speed, maximum wind speed, and wind speed distribution. Based on the cross-sectional wind speed analysis results, establish wind speed distribution models such as Gaussian distribution and exponential distribution. Determine the wind speed distribution based on the wind speed distribution models and environmental correction factors.

[0196] This solution utilizes ambient temperature and humidity data to help identify the impact of environmental conditions on wind speed distribution, such as the effect of temperature and humidity on air density. Environmental correction factors help calibrate the wind speed distribution model, ensuring stable and consistent blower performance under different environments. Analyzing cross-sectional wind speeds helps identify patterns and anomalies in wind speed distribution, providing a basis for wind speed control strategies. Determining the wind speed distribution helps optimize the blower's airflow control, ensuring a uniform and comfortable wind speed distribution in various environments.

[0197] Figure 3 This is a schematic diagram of a hair dryer's electromagnetic radiation-free air outlet control system according to an embodiment of this application, as shown below. Figure 3 As shown, the hair dryer electromagnetic radiation-free air outlet control system 300 of this embodiment includes: a data acquisition module 301, a characteristic analysis module 302, a path determination module 303, an electromagnetic field determination module 304, and an instruction determination module 305.

[0198] The data acquisition module 301 is used to acquire the current spectrum of the motor winding, the thermal characteristics of the heating element, the cross-sectional wind speed of the air outlet, and the electromagnetic characteristics of the operating environment.

[0199] The characteristic analysis module 302 is used to analyze the current spectrum and the electromagnetic characteristics to determine the electromagnetic adjustment parameters of the air outlet.

[0200] The path determination module 303 is used to analyze the thermal characteristics, determine the temperature change gradient, and determine the electromagnetic feedback path based on the temperature change gradient.

[0201] The electromagnetic field determination module 304 is used to analyze the wind speed of the cross section, determine the wind speed distribution, and determine the vortex electromagnetic field based on the wind speed distribution.

[0202] The instruction determination module 305 is used to determine the air outlet control instruction of the blower based on the vortex electromagnetic field, the electromagnetic adjustment parameters and the electromagnetic feedback path.

[0203] Optionally, when the electromagnetic field determination module 304 determines the vortex electromagnetic field based on the wind speed distribution, it is used for:

[0204] Based on the wind speed distribution, determine the aerodynamic load;

[0205] The phase compensation amount is determined based on the aerodynamic load.

[0206] The vortex electromagnetic field is determined by analyzing the aerodynamic load and the phase compensation amount.

[0207] Optionally, when the characteristic analysis module analyzes the current spectrum and the electromagnetic characteristics to determine the electromagnetic adjustment parameters of the air outlet, it is used for:

[0208] Analyze the current spectrum to determine the fundamental component;

[0209] Analyze the electromagnetic properties to determine the field phase of the background.

[0210] The phase difference between the current spectrum and the electromagnetic properties is determined based on the fundamental component and the field phase.

[0211] The amplitude compensation coefficient is determined based on the phase difference and the fundamental component.

[0212] Based on the phase difference, determine the phase compensation coefficient;

[0213] The electromagnetic adjustment parameters of the air outlet are determined based on the phase compensation coefficient and the amplitude compensation coefficient.

[0214] Optionally, when the path determination module 303 determines the electromagnetic feedback path based on the temperature change gradient, it is used to:

[0215] Obtain the spatial coordinates of the testing equipment;

[0216] The temperature value of the spatial coordinates is determined based on the spatial coordinates and the temperature change gradient.

[0217] Based on the temperature value, the temperature change gradient is analyzed to determine the dielectric constant gradient;

[0218] The electromagnetic feedback path is determined based on the dielectric constant gradient.

[0219] Optionally, when the instruction determining module 305 determines the airflow control instruction for the blower based on the vortex electromagnetic field, the electromagnetic adjustment parameters, and the electromagnetic feedback path, it is used to:

[0220] The operating bandwidth of the motor drive circuit is determined based on the electromagnetic adjustment parameters.

[0221] The electric field polarization intensity of the dielectric layer is determined based on the electromagnetic feedback path.

[0222] The mechanical deformation of the flow guiding structure is determined based on the vortex electromagnetic field.

[0223] The operating bandwidth, the electric field polarization intensity, and the mechanical deformation are used as the airflow control commands for the hair dryer.

[0224] Optionally, the hair dryer's electromagnetic radiation-free air outlet control system further includes a mode determination module 306, used for:

[0225] Acquire historical operating data, analyze the historical operating data, and determine the user habits of the hair dryer;

[0226] Analyze the usage habits to determine the habit patterns;

[0227] Analyze the aforementioned habit patterns to determine the health value of the patterns;

[0228] The startup mode is determined based on the health value of the mode.

[0229] Optionally, the hair dryer's electromagnetic radiation-free air outlet control system further includes an instruction generation module 307, used for:

[0230] Get the remaining battery power information;

[0231] Analyze the remaining battery power information to determine energy-saving optimization factors;

[0232] An energy-saving optimization factor is incorporated into the calculation of the operating bandwidth of the motor drive circuit to obtain the energy-saving optimized operating bandwidth.

[0233] Based on the energy-efficient optimized operating bandwidth, the electric field polarization intensity, and the mechanical deformation, the final control command is regenerated.

[0234] Optionally, when the instruction generation module 307 regenerates the final control instruction based on the energy-efficient optimized operating bandwidth, the electric field polarization intensity, and the mechanical deformation, it is used for:

[0235] When the hair dryer is activated, the location where the hair dryer is used is obtained;

[0236] Analyze the usage location to determine the power limit;

[0237] Based on the power limit, the energy-efficient optimized operating bandwidth, the electric field polarization intensity, and the mechanical deformation, the final control command is regenerated.

[0238] Optionally, when the electromagnetic field determination module 304 analyzes the cross-sectional wind speed and determines the wind speed distribution, it is used for:

[0239] Obtain ambient temperature and humidity data;

[0240] Analyze environmental temperature and humidity data to determine environmental correction factors;

[0241] Based on the environmental correction factor, the cross-sectional wind speed is analyzed to determine the wind speed distribution.

[0242] The system in this embodiment can be used to execute the methods of any of the above embodiments, and its implementation principle and technical effect are similar, so they will not be described again here.

Claims

1. A method for controlling the electromagnetic radiation-free air outlet of a hair dryer, characterized in that, The method comprises the following steps: Obtaining the current spectrum of the motor winding, the thermal characteristics of the heating element, the cross-sectional wind speed of the air outlet, and the electromagnetic characteristics of the use environment; Analyzing the current spectrum and the electromagnetic characteristics to determine the electromagnetic adjustment parameter of the air outlet; Analyzing the thermal characteristics to determine the temperature change gradient, and determining the electromagnetic feedback path according to the temperature change gradient; Analyzing the cross-sectional wind speed to determine the wind speed distribution, and determining the vortex electromagnetic field according to the wind speed distribution; According to the vortex electromagnetic field, the electromagnetic adjustment parameter and the electromagnetic feedback path, the air outlet control instruction of the hair dryer is determined.

2. The method of claim 1, wherein, According to the wind speed distribution, the vortex electromagnetic field is determined, which comprises: According to the wind speed distribution, the aerodynamic load is determined; According to the aerodynamic load, the phase compensation amount is determined; Analyzing the aerodynamic load and the phase compensation amount to determine the vortex electromagnetic field.

3. The method of claim 2, wherein, The analysis of the current spectrum and the electromagnetic characteristics to determine the electromagnetic adjustment parameter of the air outlet comprises: Analyzing the current spectrum to determine the fundamental component; Analyzing the electromagnetic characteristics to determine the field phase of the use background; According to the fundamental component and the field phase, the phase difference between the current spectrum and the electromagnetic characteristics is determined; According to the phase difference and the fundamental component, the amplitude compensation coefficient is determined; According to the phase difference, the phase compensation coefficient is determined; According to the phase compensation coefficient and the amplitude compensation coefficient, the electromagnetic adjustment parameter of the air outlet is determined.

4. The method of claim 1, wherein, According to the temperature change gradient, the electromagnetic feedback path is determined, which comprises: Obtaining the spatial coordinates of the detection equipment; According to the spatial coordinates and the temperature change gradient, the temperature value of the spatial coordinates is determined; Based on the temperature value, the temperature change gradient is analyzed to determine the dielectric constant gradient; According to the dielectric constant gradient, the electromagnetic feedback path is determined.

5. The method of claim 1, wherein, According to the vortex electromagnetic field, the electromagnetic adjustment parameter and the electromagnetic feedback path, the air outlet control instruction of the hair dryer is determined, which comprises: According to the electromagnetic adjustment parameter, the working bandwidth of the motor drive circuit is determined; According to the electromagnetic feedback path, the electric field polarization intensity of the dielectric layer is determined; According to the vortex electromagnetic field, the mechanical deformation amount of the flow guide structure is determined; The working bandwidth, the electric field polarization intensity and the mechanical deformation amount are taken as the air outlet control instruction of the hair dryer.

6. The method of claim 1, wherein, Before obtaining the current spectrum of the motor winding, the thermal characteristics of the heating element, the cross-sectional wind speed of the air outlet, and the electromagnetic characteristics of the use environment, the method further comprises the following steps: Obtaining historical operation data, analyzing the historical operation data to determine the use habit of the hair dryer; Analyzing the use habit to determine the habit mode; Analyzing the habit mode to determine the mode health value; According to the mode health value, the starting mode is determined.

7. The method of claim 5, wherein, Before taking the working bandwidth, the electric field polarization intensity and the mechanical deformation amount as the air outlet control instruction of the hair dryer, the method further comprises the following steps: Obtaining the battery remaining capacity information; Analyzing the battery remaining capacity information to determine the energy saving optimization factor; The energy saving optimization factor is introduced into the calculation of the working bandwidth of the motor drive circuit to obtain the energy saving optimized working bandwidth; Regenerate the final control instruction based on the energy-saving optimized working bandwidth, the electric field polarization strength and the mechanical deformation variable.

8. The method of claim 7, wherein, The regeneration of the final control instruction based on the energy-saving optimized working bandwidth, the electric field polarization strength and the mechanical deformation variable comprises: When the hair dryer is enabled, acquire the use position of the hair dryer; Analyze the use position to determine the limit power; Regenerate the final control instruction according to the limit power, the energy-saving optimized working bandwidth, the electric field polarization strength and the mechanical deformation variable.

9. The method of claim 1, wherein, The analysis of the cross-sectional wind speed to determine the wind speed distribution comprises: Acquire the environmental temperature and humidity data; Analyze the environmental temperature and humidity data to determine the environmental correction factor; Based on the environmental correction factor, analyze the cross-sectional wind speed to determine the wind speed distribution.

10. A hair dryer electromagnetic radiation-free air outlet control system, characterized by, Applied to the method of any one of claims 1-9, comprising: A data acquisition module for acquiring the current spectrum of the motor winding, the thermal characteristics of the heating element, the cross-sectional wind speed of the air outlet and the electromagnetic characteristics of the use environment; A characteristic analysis module for analyzing the current spectrum and the electromagnetic characteristics to determine the electromagnetic adjustment parameters of the air outlet; A path determination module for analyzing the thermal characteristics to determine the temperature change gradient and determining the electromagnetic feedback path according to the temperature change gradient; An electromagnetic field determination module for analyzing the cross-sectional wind speed to determine the wind speed distribution and determining the vortex electromagnetic field according to the wind speed distribution; An instruction determination module for determining the air outlet control instruction of the hair dryer according to the vortex electromagnetic field, the electromagnetic adjustment parameters and the electromagnetic feedback path.

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