Temperature feedback type handheld microwave beautifying device

By introducing a temperature feedback control system into the microwave beauty device, the skin temperature is monitored in real time and the microwave energy is dynamically regulated, the problems of uneven temperature and local overheating in the existing microwave beauty device are solved, and safe and efficient beauty effects are achieved.

CN119925822AInactive Publication Date: 2025-05-06SHENZHEN BRAVO RADIO FREQUENCY TECH CO LTD
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Patent Information

Application Number
CN202510313096.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2025-05-06
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing microwave beauty devices have shortcomings in temperature monitoring and feedback regulation, which are prone to local overheating or uneven temperature distribution, which affects the beauty effect and may cause damage to the skin.

Method used

Design a temperature feedback handheld microwave beauty device, including a handheld beauty body, interactive terminal, microwave transmitting terminal, sensing terminal, control terminal and communication terminal, dynamically regulate microwave energy output by monitoring skin temperature and other physiological parameters in real time, ensuring uniformity and safety of skin temperature.

Benefits of technology

Real-time temperature feedback on the skin area and precise control of microwave energy are achieved, local overheating is avoided, and the beauty effect is improved while ensuring skin safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of microwave beauty devices, and provides a temperature feedback type handheld microwave beauty device which comprises a handheld beauty body, an interaction terminal, a microwave emission terminal, a sensing terminal, a control terminal and a communication terminal. The communication terminal is used for realizing data intercommunication of the terminals and performing information exchange with external equipment; the interactive terminal is used for starting, parameter setting and state monitoring by a user; the sensing terminal is used for monitoring sensing data of a skin area in real time in the beautifying process; the microwave emission terminal is used for generating microwave energy, regulating and controlling the microwave energy according to the sensing data and outputting the microwave energy to the handheld beauty main body; the handheld beauty main body is used for directly acting on a target skin area by utilizing microwave energy; the control terminal is used for controlling cooperative work of the terminals. The invention has the effect of improving the safety of microwave energy output.
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Description

Technical Field

[0001] The present invention relates to the technical field of microwave beauty devices, and in particular to a temperature feedback type handheld microwave beauty device. Background Art

[0002] With the continuous advancement of beauty technology, microwave beauty has gradually gained popularity due to its advantages such as high efficiency and non-invasiveness. However, existing microwave beauty equipment has deficiencies in temperature monitoring and feedback control, which can easily lead to local overheating or uneven temperature distribution, thus affecting the beauty effect and possibly causing damage to the skin. How to accurately feedback skin temperature in real time and adjust microwave energy output to achieve safe and effective beauty treatment has become a technical problem that needs to be solved urgently.

[0003] Many microwave beauty devices have been developed. After extensive searching and reference, we found that the microwave beauty devices in the prior art include the microwave beauty devices disclosed in publication numbers CN113244528A, CN118454118A, EP0193831A1, and US20120029359A1. These microwave beauty devices generally include: a microwave generating terminal, a control terminal, and a handle output terminal; the microwave generating terminal is used to generate microwaves; the control terminal is used to control the coordinated operation of the microwave generating terminal and the handle output terminal; the handle output terminal is used to output microwaves to perform microwave beauty treatment on the user's skin area. Since the microwave generation process and control process of the above-mentioned microwave beauty system are relatively simple, it is not conducive to accurate microwave beauty treatment according to the different characteristics of the skin of different users, resulting in the defect that the safety of microwave energy output of the microwave beauty device is reduced. Summary of the invention

[0004] The purpose of the present invention is to provide a temperature feedback handheld microwave beauty device in view of the above-mentioned shortcomings of the existing microwave beauty devices.

[0005] The present invention adopts the following technical solution:

[0006] A temperature feedback handheld microwave beauty device, comprising a handheld beauty main body, an interactive terminal, a microwave transmitting terminal, a sensor terminal, a control terminal and a communication terminal; the communication terminal is used to realize data intercommunication among the terminals and to exchange information with external devices; the interactive terminal is used for users to start, set parameters and monitor status; the sensor terminal is used to monitor the sensor data of the skin area in real time during the beauty process; the microwave transmitting terminal is used to generate microwave energy, regulate the microwave energy according to the sensor data, and output it to the handheld beauty main body; the handheld beauty main body is used to use microwave energy to directly act on the target skin area; the control terminal is used to control the coordinated work of the terminals;

[0007] The handheld beauty body includes an energy receiving module, an energy conducting module and a skin contact module. The energy receiving module is used to receive microwave energy regulated by the microwave transmitting terminal; the energy conducting module is used to evenly distribute the received microwave energy and conduct it to the skin contact module; the skin contact module is used to drive the microwave energy to act directly on the target skin area.

[0008] Optionally, the interactive terminal includes a display module, an input module and a feedback module, the display module is used to display the equipment operation status and beauty parameters in real time; the input module is used to receive the user's startup, parameter setting and control instructions; the feedback module is used to collect user operation response information and equipment abnormality prompts.

[0009] Optionally, the microwave transmitting terminal includes a microwave generating module, an energy control module and an output interface module, the microwave generating module is used to generate microwave signals; the energy control module is used to dynamically control the microwave output power according to the sensor data collected by the sensor terminal; the output interface module is used to transmit the regulated microwave energy to the handheld beauty body.

[0010] Optionally, the sensing terminal includes a temperature sensing module, a skin physiological parameter acquisition module and a data integration module, wherein the temperature sensing module is used to detect the temperature data of the skin area in real time; the skin physiological parameter acquisition module is used to monitor the electrical signals and humidity data of the skin area; and the data integration module is used to integrate various sensing data and transmit them to the control terminal.

[0011] Optionally, the communication terminal includes an internal communication module, a data transmission module and an external interface module, wherein the internal communication module is used to realize data interconnection between terminals; the data transmission module is used to encrypt and transmit internal and external data; and the external interface module is used to realize information exchange and remote monitoring with external devices.

[0012] Optionally, the energy control module includes a mode selection submodule, a temperature feedback control submodule, a resonance response control submodule and a control execution submodule; the mode selection submodule is used to select an energy control determination mode according to an operator's pre-input; if the selected mode is the temperature feedback control mode, the temperature feedback control submodule is used to generate temperature feedback control information according to the sensor data; if the selected mode is the resonance response control module, the resonance response control submodule is used to generate resonance feedback control information according to the sensor data; the control execution submodule is used to perform an operation of dynamically controlling the microwave output power according to the temperature feedback control information or the resonance feedback control information.

[0013] Optionally, the temperature feedback control submodule includes a temperature feedback control coefficient calculation unit and a temperature feedback control information generation unit; the temperature feedback control coefficient calculation unit is used to calculate the temperature feedback control coefficient of the skin area according to the temperature data in the sensing data; the temperature feedback control information generation unit is used to generate corresponding temperature feedback control information according to the temperature feedback control coefficient;

[0014] When the temperature feedback control coefficient calculation unit is working, the following formula is satisfied:

[0015]

[0016] Δ i =T ref0 -T i (0) ;

[0017]

[0018] Where A represents the temperature feedback control coefficient of the skin area receiving beauty treatment; T i represents the real-time temperature value of the i-th temperature sensing module in the sensing data; N represents the total number of temperature sensing modules in the sensing data; the temperature sensing modules are evenly distributed on the inner side of the skin contact surface of the skin contact module; Δ i represents the calibration constant of the i-th temperature sensor module; κ i represents the temperature response sensitivity of the i-th temperature sensing module; T set Indicates the preset target temperature value; θ i represents the temperature deviation adjustment coefficient of the i-th temperature sensor module;

[0019] T ref0 Indicates the standard reference temperature used in the calibration process, generally 37°C; T i (0) represents the initial temperature value of the ith temperature sensing module measured in a standard environment during calibration; the standard environment is preset by the operator based on experience; T ref1 Indicates the lower limit response temperature preset during the calibration process, generally 35°C; T ref2 Indicates the upper limit response temperature preset during the calibration process, generally 45°C; T i (1) Indicates that the i-th temperature sensor module is calibrated at a temperature close to T ref1 The actual temperature value measured in the area; T i (2) Indicates that the i-th temperature sensor module is calibrated at a temperature close to T ref2 The actual temperature value measured in the area; when the A value is greater than a refWhen the value of A is less than a ref When the temperature feedback control information generating unit generates temperature feedback control information indicating that the microwave energy needs to be enhanced; ref Indicates the temperature feedback control threshold, which is set by the operator based on experience.

[0020] A temperature feedback handheld microwave beauty method is applied to the temperature feedback handheld microwave beauty device as described above. The temperature feedback handheld microwave beauty method comprises:

[0021] S1, controls the collaborative work of each terminal;

[0022] S2, realizes data intercommunication among terminals and exchanges information with external devices;

[0023] S3, sensor data for real-time monitoring of skin areas during beauty treatment;

[0024] S4, generating microwave energy, regulating the microwave energy according to the sensing data, and outputting the microwave energy to the handheld beauty body;

[0025] S5, uses microwave energy directly to target skin areas.

[0026] The beneficial effects achieved by the present invention are:

[0027] 1. By setting up a handheld beauty main body, an interactive terminal, a microwave transmitting terminal, a sensor terminal, a control terminal and a communication terminal, it is conducive to realizing data interconnection and collaborative work among various modules, thereby being able to collect sensor data of the skin area in real time and accurately control microwave energy, which is conducive to safely and evenly transmitting microwave energy to the target skin area and achieving efficient beauty treatment effects.

[0028] 2. By setting up an interactive terminal including a display module, an input module and a feedback module, it is beneficial to display the equipment operation status and beauty parameters in real time, so that the operator can intuitively monitor the equipment operation and input control instructions in time, which is beneficial to improve the interactivity and control accuracy of the beauty process and ensure the safety and stability of the treatment process.

[0029] 3. By setting up a microwave transmitting terminal including a microwave generation module, an energy control module and an output interface module, it is beneficial to stably generate microwave signals and control the output power in real time according to the sensor data, thereby ensuring that the regulated microwave energy is accurately transmitted to the handheld beauty body, which is beneficial to achieve precise energy control and efficient beauty treatment effects.

[0030] 4. By setting up a sensing terminal including a temperature sensing module, a skin physiological parameter acquisition module and a data integration module, it is beneficial to detect skin temperature, electrical signals, humidity and other data in real time, and transmit them to the control terminal after integration, thereby providing comprehensive and accurate physiological data support for energy regulation, which is beneficial to ensure the safety and efficiency of microwave energy output during the beauty process.

[0031] 5. By setting up a communication terminal including an internal communication module, a data transmission module and an external interface module, it is beneficial to realize data interconnection between terminals and encrypted information transmission and remote monitoring of external devices, thereby making data transmission safe and efficient, which is beneficial to improving the intelligent control level and data reliability of the entire beauty device.

[0032] 6. By setting up the energy control module including the mode selection submodule, the temperature feedback control submodule, the resonance response control submodule and the control execution submodule, it is beneficial to carry out targeted control according to the mode selection pre-input by the operator, so that the temperature feedback control information or the resonance feedback control information can be generated in real time and transmitted to the control execution submodule, which is beneficial to realize dynamic and fine control of the microwave output power and ensure that the cosmetic treatment is both safe and accurate.

[0033] 7. The use of an adaptive temperature feedback control algorithm is conducive to real-time collection of skin temperature data and generation of a temperature feedback control coefficient, so that the microwave energy output can be finely adjusted according to the skin temperature dynamics, which is conducive to effectively preventing local overheating during the beauty process, improving the beauty effect while ensuring skin safety.

[0034] 8. By adopting the skin water molecule resonance response control algorithm, it is beneficial to use parameters such as water molecule resonance frequency, skin dielectric loss and dielectric constant to perform nonlinear operations, and then generate resonance response control coefficients, which is conducive to achieving precise dynamic control of microwave energy output, which can not only stimulate the water molecule resonance effect in the target area, but also effectively reduce the risk of skin damage caused by excessive energy.

[0035] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and description and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 It is a structural schematic diagram of the energy control module in the present invention;

[0038] Figure 3 This is a statistical effect diagram of the temperature feedback control 3D surface in the present invention;

[0039] Figure 4 A schematic diagram of a method flow of a temperature feedback handheld microwave beauty method in the present invention;

[0040] Figure 5 It is a resonance curve effect diagram of the resonance response of skin water molecules in another embodiment of the present invention. DETAILED DESCRIPTION

[0041] The following is an explanation of the embodiments of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following embodiments will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0042] Embodiment 1: This embodiment provides a temperature feedback handheld microwave beauty device. Figure 1 As shown, a temperature feedback handheld microwave beauty device comprises a handheld beauty main body, an interactive terminal, a microwave transmitting terminal, a sensor terminal, a control terminal and a communication terminal; the communication terminal is used to realize data intercommunication among the terminals and to exchange information with external devices; the interactive terminal is used for users to start, set parameters and monitor status; the sensor terminal is used to monitor the sensor data of the skin area in real time during the beauty process; the microwave transmitting terminal is used to generate microwave energy, regulate the microwave energy according to the sensor data, and output it to the handheld beauty main body; the handheld beauty main body is used to use microwave energy to directly act on the target skin area; the control terminal is used to control the coordinated work of the terminals;

[0043] The handheld beauty body includes an energy receiving module, an energy conducting module and a skin contact module. The energy receiving module is used to receive microwave energy regulated by the microwave transmitting terminal; the energy conducting module is used to evenly distribute the received microwave energy and conduct it to the skin contact module; the skin contact module is used to drive the microwave energy to act directly on the target skin area.

[0044] Optionally, the interactive terminal includes a display module, an input module and a feedback module, the display module is used to display the equipment operation status and beauty parameters in real time; the input module is used to receive the user's startup, parameter setting and control instructions; the feedback module is used to collect user operation response information and equipment abnormality prompts.

[0045] Optionally, the microwave transmitting terminal includes a microwave generating module, an energy control module and an output interface module, the microwave generating module is used to generate microwave signals; the energy control module is used to dynamically control the microwave output power according to the sensor data collected by the sensor terminal; the output interface module is used to transmit the regulated microwave energy to the handheld beauty body.

[0046] Optionally, the sensing terminal includes a temperature sensing module, a skin physiological parameter acquisition module and a data integration module, wherein the temperature sensing module is used to detect the temperature data of the skin area in real time; the skin physiological parameter acquisition module is used to monitor the electrical signals and humidity data of the skin area; and the data integration module is used to integrate various sensing data and transmit them to the control terminal.

[0047] Optionally, the communication terminal includes an internal communication module, a data transmission module and an external interface module, wherein the internal communication module is used to realize data interconnection between terminals; the data transmission module is used to encrypt and transmit internal and external data; and the external interface module is used to realize information exchange and remote monitoring with external devices.

[0048] Optional, combined Figure 2 As shown, the energy control module includes a mode selection submodule, a temperature feedback control submodule, a resonance response control submodule and a control execution submodule; the mode selection submodule is used to select the energy control determination mode according to the operator's pre-input; if the selected mode is the temperature feedback control mode, the temperature feedback control submodule is used to generate temperature feedback control information according to the sensor data; if the selected mode is the resonance response control module, the resonance response control submodule is used to generate resonance feedback control information according to the sensor data; the control execution submodule is used to perform the operation of dynamically controlling the microwave output power according to the temperature feedback control information or the resonance feedback control information.

[0049] Optionally, the temperature feedback control submodule includes a temperature feedback control coefficient calculation unit and a temperature feedback control information generation unit; the temperature feedback control coefficient calculation unit is used to calculate the temperature feedback control coefficient of the skin area according to the temperature data in the sensing data; the temperature feedback control information generation unit is used to generate corresponding temperature feedback control information according to the temperature feedback control coefficient;

[0050] When the temperature feedback control coefficient calculation unit is working, the following formula is satisfied:

[0051]

[0052] Δ i =T ref0 -T i (0) ;

[0053]

[0054] Where A represents the temperature feedback control coefficient of the skin area receiving beauty treatment; T i represents the real-time temperature value of the i-th temperature sensing module in the sensing data; N represents the total number of temperature sensing modules in the sensing data; the temperature sensing modules are evenly distributed on the inner side of the skin contact surface of the skin contact module; Δ i represents the calibration constant of the i-th temperature sensor module; κ i represents the temperature response sensitivity of the i-th temperature sensing module; T set Indicates the preset target temperature value; θ i represents the temperature deviation adjustment coefficient of the i-th temperature sensor module;

[0055] T ref0 Indicates the standard reference temperature used in the calibration process, generally 37°C; T i (0) represents the initial temperature value of the ith temperature sensing module measured in a standard environment during calibration; the standard environment is preset by the operator based on experience; T ref1 Indicates the lower limit response temperature preset during the calibration process, generally 35°C; T ref2 Indicates the upper limit response temperature preset during the calibration process, generally 45°C; T i (1) Indicates that the i-th temperature sensor module is calibrated at a temperature close to T ref1 The actual temperature value measured in the area; T i (2) Indicates that the i-th temperature sensor module is calibrated at a temperature close to T ref2 The actual temperature value measured in the area; when the A value is greater than a ref When the value of A is less than a ref When the temperature feedback control information generating unit generates temperature feedback control information indicating that the microwave energy needs to be enhanced; ref Indicates the temperature feedback control threshold, which is set by the operator based on experience.

[0056] When the microwave energy needs to be reduced by the A value, it can be, but is not limited to: 1. Reduce according to the reduction percentage preset by the operator; 2. Reduce according to the nonlinear power reduction formula. The preset reduction percentage is generally 20% of the original power, that is, the microwave energy is reduced by 20%. When the microwave energy needs to be increased by the A value, it can be, but is not limited to: 1. Increase according to the increase percentage preset by the operator; 2. Increase according to the nonlinear power increase formula. The preset increase percentage is generally 10% of the original power, that is, the microwave energy is increased by 10%.

[0057] Nonlinear power reduction formula:

[0058]

[0059] Among them, P current Indicates the output power corresponding to the current microwave energy; P new1 It indicates the output power after A value adjustment; ΔA indicates the difference between A and a ref The difference, that is, ΔA = Aa ref ; η represents the reduction of the modulation index, which is greater than 0, and the specific value is set by the operator based on experience.

[0060] Nonlinear power increase formula:

[0061] P new2 =P current ×(1+1.5·|ΔA| η ');

[0062] Among them, P current Indicates the output power corresponding to the current microwave energy; P new2 It indicates the output power after A value adjustment; ΔA indicates the difference between A and a ref ; η' represents the enhanced modulation index, which is greater than 0, and the specific value is set by the operator based on experience.

[0063] The following is the program code for the above temperature feedback control coefficient calculation example:

[0064]

[0065]

[0066] Combination Figure 3 As shown, Figure 3 The statistical effect diagram of the temperature feedback control 3D surface shows how the temperature and correction parameters affect the temperature feedback control coefficient A, which helps to understand how to fine-tune the microwave output power through temperature data in practical applications.

[0067] In summary, by setting up a handheld beauty main body, an interactive terminal, a microwave transmitting terminal, a sensor terminal, a control terminal and a communication terminal, it is conducive to realizing data interconnection and collaborative work among the modules, so that the sensor data of the skin area can be collected in real time and the microwave energy can be accurately controlled; by setting up an interactive terminal including a display module, an input module and a feedback module, it is conducive to real-time display of the equipment operation status and beauty parameters, so that the operator can intuitively monitor the equipment operation and input control instructions in time; by setting up a microwave transmitting terminal including a microwave generation module, an energy control module and an output interface module, it is conducive to stable generation of microwave signals and real-time control of the output power according to the sensor data, so as to ensure that the regulated microwave energy is accurately transmitted to the handheld beauty main body; by setting up a sensor terminal including a temperature sensor module, a skin physiological parameter acquisition module and a data integration module, it is conducive to real-time detection of skin temperature, electrical signals, humidity and other data, and transmission to the control terminal after integration, Thus, comprehensive and accurate physiological data support is provided for energy regulation; by setting up a communication terminal including an internal communication module, a data transmission module and an external interface module, it is conducive to realizing data interconnection between terminals and information encryption transmission and remote monitoring of external devices, thereby making data transmission both safe and efficient; by setting up an energy regulation module including a mode selection submodule, a temperature feedback regulation submodule, a resonance response regulation submodule and a regulation execution submodule, it is conducive to targeted regulation according to the mode selection pre-input by the operator, so that temperature feedback regulation information or resonance feedback regulation information can be generated in real time and transmitted to the regulation execution submodule; by adopting an adaptive temperature feedback regulation algorithm, it is conducive to real-time collection of skin temperature data and generation of temperature feedback regulation coefficients, so that the microwave energy output can be finely adjusted according to the skin temperature dynamics, which is conducive to effectively preventing local overheating during the beauty process, improving the beauty effect while ensuring skin safety.

[0068] A temperature feedback handheld microwave beauty method, applied to a temperature feedback handheld microwave beauty device as described above, combined with Figure 4 As shown, the temperature feedback handheld microwave beauty method comprises:

[0069] S1, controls the collaborative work of each terminal;

[0070] S2, realizes data intercommunication among terminals and exchanges information with external devices;

[0071] S3, sensor data for real-time monitoring of skin areas during beauty treatment;

[0072] S4, generating microwave energy, regulating the microwave energy according to the sensing data, and outputting the microwave energy to the handheld beauty body;

[0073] S5, uses microwave energy directly to target skin areas.

[0074] Embodiment 2: This embodiment includes all the contents of Embodiment 1, and provides a temperature feedback handheld microwave beauty device. In combination with the figure, the resonance response regulation submodule includes a resonance response regulation coefficient calculation unit and a resonance response regulation information generation unit; the resonance response regulation coefficient calculation unit is used to calculate the resonance response regulation coefficient of the skin area according to the resonance frequency data in the sensing data; the resonance response regulation information generation unit is used to generate corresponding resonance response regulation information according to the resonance response regulation coefficient.

[0075] When the resonance response regulation submodule is working, the following formula is satisfied:

[0076]

[0077] Where E represents the resonance response control coefficient of the skin area; ω k represents the water molecule resonance frequency of the kth skin physiological parameter acquisition module in the sensor data; T k represents the real-time temperature value of the skin point contacted by the kth skin physiological parameter acquisition module; L represents the total number of skin physiological parameter acquisition modules; the skin physiological parameter acquisition modules are evenly distributed on the inner side of the skin contact surface of the skin contact module; the skin physiological parameter acquisition module uses a built-in microwave spectrum sensor to apply low-power broadband microwave excitation to the skin area and perform spectrum analysis on the reflected signal to capture the water molecule absorption peak, thereby determining the resonance frequency in the area; β k represents the index control parameter of the kth skin physiological parameter acquisition module; ζ k represents the skin dielectric loss parameter of the skin point contacted by the kth skin physiological parameter acquisition module; ε k represents the skin dielectric constant of the skin point contacted by the kth skin physiological parameter acquisition module; H represents the ambient humidity; cosh() represents the hyperbolic cosine function.

[0078] β0 represents the basic nonlinear index, which is set by the operator based on experience. When the resonance frequency of water molecules is in an ideal state, that is, ω k =ω ref When k =β0;ω ref represents the reference water molecule resonance frequency, which is determined during the equipment calibration phase or set by the operator based on experience; α represents the nonlinear control coefficient, which is used to amplify the influence of the water molecule resonance frequency deviation, and is generally greater than 0.5. The specific value is set by the operator based on experience; d k represents the skin thickness of the skin point contacted by the kth skin physiological parameter acquisition module, which is obtained by pre-measurement or estimation and input by the operator; P i,krepresents the incident microwave power measured at the skin point contacted by the kth skin physiological parameter acquisition module, that is, the power value of the microwave before it is emitted from the transmitting end to the skin; P t,k represents the microwave power reflected by the skin measured at the skin point contacted by the kth skin physiological parameter acquisition module. The absorption, scattering and reflection inside the skin will reduce the power. The lower the value, the more energy the skin absorbs. k represents the skin capacitance measured at the skin point contacted by the kth skin physiological parameter acquisition module; d e It represents the distance between two electrodes in capacitance measurement. The distance is generally determined by the electrode design to ensure that a stable capacitance structure can be formed when in contact with the skin. ε0 represents the vacuum dielectric constant, which is approximately 8.854×10 -12 F / m; A e It refers to the effective area of ​​the electrode when measuring capacitance, that is, the skin contact area involved in forming capacitance.

[0079] When the E value is greater than e ref When the E value is less than e ref When , the resonance response regulation information generating unit generates the resonance response regulation information indicating that the microwave energy needs to be enhanced by 15%; ref Represents the resonance response regulation threshold, which is set by the operator based on experience.

[0080] The temperature unit is ℃, the frequency unit is GHz, the skin thickness unit is mm, the skin capacitance unit is μF, the distance is mm, and the area is mm 2 Of course, the above units are examples, and those skilled in the art can set different units according to specific needs when implementing this solution.

[0081] The following is the program code for the calculation example of the above resonance response control coefficient:

[0082] Combination Figure 5 As shown, Figure 5 This is a resonance curve effect diagram of the resonance response of water molecules in the skin, which intuitively reflects how the resonance response of water molecules changes with frequency, reveals the important influence of the resonance state on energy regulation, and enables the microwave output to be dynamically adjusted according to the internal resonance conditions of the skin.

[0083] In summary, by adopting the skin water molecule resonance response control algorithm, it is beneficial to use parameters such as water molecule resonance frequency, skin dielectric loss and dielectric constant for nonlinear calculations, and then generate resonance response control coefficients, which is conducive to achieving precise dynamic control of microwave energy output, which can not only stimulate the water molecule resonance effect in the target area, but also effectively reduce the risk of skin damage caused by excessive energy.

[0084] The contents disclosed above are only preferred feasible embodiments of the present invention, and do not limit the protection scope of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention description and drawings are included in the protection scope of the present invention. In addition, the elements therein can be updated as technology develops.

Claims

1. A temperature feedback handheld microwave beauty device, characterized in that: It includes a handheld beauty main body, an interactive terminal, a microwave transmitting terminal, a sensor terminal, a control terminal and a communication terminal; the communication terminal is used to realize data intercommunication among the terminals and exchange information with external devices; the interactive terminal is used for users to start, set parameters and monitor status; the sensor terminal is used to monitor the sensor data of the skin area in real time during the beauty process; The microwave transmitting terminal is used to generate microwave energy, dynamically adjust the microwave energy according to the sensing data, and output it to the handheld beauty body; the handheld beauty body is used to use the microwave energy to directly act on the target skin area; the control terminal is used to control the coordinated work of each terminal; The handheld beauty body includes an energy receiving module, an energy conducting module and a skin contact module. The energy receiving module is used to receive microwave energy regulated by the microwave transmitting terminal; the energy conducting module is used to evenly distribute the received microwave energy and conduct it to the skin contact module; the skin contact module is used to drive the microwave energy to act directly on the target skin area.

2. A temperature feedback handheld microwave beauty device as claimed in claim 1, characterized in that: The interactive terminal includes a display module, an input module and a feedback module. The display module is used to display the equipment operation status and beauty parameters in real time; the input module is used to receive the user's startup, parameter setting and control instructions; the feedback module is used to collect the response information of the user's operation and the equipment abnormality prompt.

3. A temperature feedback handheld microwave beauty device as claimed in claim 2, characterized in that: The microwave transmitting terminal includes a microwave generating module, an energy regulating module and an output interface module, wherein the microwave generating module is used to generate microwave signals; the energy regulating module is used to dynamically regulate the microwave output power according to the sensing data collected by the sensing terminal; The output interface module is used to transmit the regulated microwave energy to the handheld beauty body.

4. A temperature feedback handheld microwave beauty device as claimed in claim 3, characterized in that: The sensing terminal includes a temperature sensing module, a skin physiological parameter acquisition module and a data integration module. The temperature sensing module is used to detect the temperature data of the skin area in real time; the skin physiological parameter acquisition module is used to monitor the electrical signals and humidity data of the skin area; the data integration module is used to integrate various sensing data and transmit them to the control terminal.

5. A temperature feedback handheld microwave beauty device as claimed in claim 4, characterized in that: The communication terminal includes an internal communication module, a data transmission module and an external interface module. The internal communication module is used to realize data interconnection between terminals; the data transmission module is used to encrypt and transmit internal and external data; and the external interface module is used to realize information exchange and remote monitoring with external devices.

6. A temperature feedback handheld microwave beauty device as claimed in claim 5, characterized in that: The energy control module includes a mode selection submodule, a temperature feedback control submodule, a resonance response control submodule and a control execution submodule; the mode selection submodule is used to select the energy control determination mode according to the operator's pre-input; if the selected mode is the temperature feedback control mode, the temperature feedback control submodule is used to generate temperature feedback control information according to the sensor data; if the selected mode is the resonance response control module, the resonance response control submodule is used to generate resonance feedback control information according to the sensor data; The control execution submodule is used to perform an operation of dynamically controlling the microwave output power according to the temperature feedback control information or the resonance feedback control information.

7. A temperature feedback handheld microwave beauty device as claimed in claim 6, characterized in that: The temperature feedback control submodule includes a temperature feedback control coefficient calculation unit and a temperature feedback control information generation unit; The temperature feedback control coefficient calculation unit is used to calculate the temperature feedback control coefficient of the skin area according to the temperature data in the sensing data; The temperature feedback control information generating unit is used to generate corresponding temperature feedback control information according to the temperature feedback control coefficient; When the temperature feedback control coefficient calculation unit is working, the following formula is satisfied: Where A represents the temperature feedback control coefficient of the skin area receiving beauty treatment; T i represents the real-time temperature value of the i-th temperature sensing module in the sensing data; N represents the total number of temperature sensing modules in the sensing data; the temperature sensing modules are evenly distributed on the inner side of the skin contact surface of the skin contact module; Δ i represents the calibration constant of the i-th temperature sensor module; κ i represents the temperature response sensitivity of the i-th temperature sensing module; T set Indicates the preset target temperature value; θ i represents the temperature deviation adjustment coefficient of the i-th temperature sensor module; T ref0 Indicates the standard reference temperature used in the calibration process; T i (0) represents the initial temperature value of the ith temperature sensor module measured under standard environment during calibration; T ref1 Indicates the lower limit response temperature preset during the calibration process; T ref2 Indicates the upper limit response temperature preset during the calibration process; T i (1) Indicates that the i-th temperature sensor module is calibrated at a temperature close to T ref1 The actual temperature value measured in the area; T i (2) Indicates that the i-th temperature sensor module is calibrated at a temperature close to T ref2 The actual temperature value measured in the area; when the A value is greater than a ref When the value of A is less than a ref When the temperature feedback control information generating unit generates temperature feedback control information indicating that the microwave energy needs to be enhanced; ref Indicates the temperature feedback control threshold.

8. A temperature feedback handheld microwave beauty method, applied to a temperature feedback handheld microwave beauty device as claimed in any one of claims 1 to 7, characterized in that: The temperature feedback handheld microwave beauty method comprises: S1, controls the collaborative work of each terminal; S2, realizes data intercommunication among terminals and exchanges information with external devices; S3, sensor data for real-time monitoring of skin areas during beauty treatment; S4, generating microwave energy, regulating the microwave energy according to the sensing data, and outputting the microwave energy to the handheld beauty body; S5, uses microwave energy directly to target skin areas.

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