Beauty instrument control methods, devices and beauty instruments

Abstract

This application relates to a method, apparatus, and beauty device control system. The method includes: controlling the application of an electrical signal of a target frequency to the detection electrode of the beauty device; acquiring the target frequency electrical signal applied to a target skin layer and detecting the bioimpedance data of the target skin layer; determining the skin state based on the bioimpedance data; determining the target output parameters of the excitation electrode based on the skin state; and controlling the excitation electrode of the beauty device to operate with the target output parameters. Since the output parameters of the excitation electrode are determined based on the detection results of the detection electrode, the output parameters of the excitation electrode can be adjusted in real time according to the bioimpedance detection results, thus achieving automatic adjustment of the beauty device's output parameters based on the skin state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cosmetic instruments, in particular to a cosmetic instrument control method and device and a cosmetic instrument. BACKGROUND

[0002] A cosmetic instrument is a machine that adjusts and improves the body and face according to the physiological function of the human body. According to the working principle, the cosmetic instrument can be divided into laser cosmetic instruments, radio frequency cosmetic instruments, etc.

[0003] The cosmetic instrument usually has multiple working gears to adapt to the needs of different users. During use, the user can select the corresponding working gear according to the actual situation of the skin to achieve a better cosmetic effect or user experience effect.

[0004] However, this method needs manual adjustment, and the adjustment efficiency is low. SUMMARY

[0005] Therefore, it is necessary to provide a cosmetic instrument control method, device and cosmetic instrument capable of improving the adjustment efficiency to solve the above technical problems.

[0006] In a first aspect, the present application provides a cosmetic instrument control method. The method comprises:

[0007] controlling an electric signal of a target frequency to be applied to a detection electrode of the cosmetic instrument;

[0008] obtaining the target skin layer on which the electric signal of the target frequency acts, and detecting biological impedance detection data of the target skin layer;

[0009] determining the state of the skin according to the biological impedance detection data of the target skin layer;

[0010] determining a target output parameter of an excitation electrode according to the state of the skin;

[0011] controlling the excitation electrode of the cosmetic instrument to operate at the target output parameter.

[0012] In one embodiment, the target frequency includes a first frequency, the electric signal of the first frequency acts on a skin surface layer of the skin, and the target skin layer includes the skin surface layer.

[0013] Determining the state of the skin according to the biological impedance detection data of the target skin layer includes determining a skin type of the skin according to the biological impedance detection data of the skin surface layer, and the state of the skin includes the skin type.

[0014] In one of the embodiments, the skin types include dry skin, mixed skin, oily skin and neutral skin, and the bioimpedance detection data of the dry skin, the mixed skin, the oily skin and the neutral skin decreases in turn; and the target output parameters corresponding to the dry skin, the mixed skin, the oily skin and the neutral skin are different.

[0015] In one of the embodiments, the target frequency includes a second frequency, the electric signal of the second frequency acts on a deep skin layer of the skin, and the target skin layer includes the deep skin layer.

[0016] The method for determining the state of the skin according to the bioimpedance detection data of the target skin layer includes determining the component content of the deep skin layer according to the bioimpedance detection data of the deep skin layer, and the state of the skin includes the component content of the deep skin layer.

[0017] In one of the embodiments, the component content of the deep skin layer includes the protein content of a dermis layer and / or the fat content of a fat layer; the higher the protein content of the dermis layer is, the smaller the target power parameter corresponding to the protein content is, and the higher the fat content of the fat layer is, the larger the target power parameter corresponding to the fat content is.

[0018] In one of the embodiments, the target frequency includes a first frequency and at least one second frequency; the electric signal of the first frequency acts on a skin surface layer of the skin; the electric signal of the at least one second frequency acts on a dermis layer and / or a fat layer of the skin; the target skin layer includes the skin surface layer, the dermis layer and / or the fat layer; and the bioimpedance detection data includes first bioimpedance detection data and at least one second bioimpedance detection data.

[0019] The method for obtaining the electric signal of the target frequency acting on the target skin layer of the skin and detecting the bioimpedance detection data of the target skin layer includes:

[0020] The method for obtaining the electric signal of the first frequency acting on the skin surface layer of the skin and detecting the first bioimpedance detection data of the skin surface layer includes:

[0021] The method for obtaining the electric signal of the at least one second frequency acting on the dermis layer and / or the fat layer of the skin and detecting the at least one second bioimpedance detection data of the dermis layer and / or the fat layer includes:

[0022] The method for determining the state of the skin according to the bioimpedance detection data of the target skin layer includes determining the state of the skin according to the first bioimpedance detection data of the skin surface layer and the at least one second bioimpedance detection data of the dermis layer and / or the fat layer.

[0023] In one embodiment, determining the state of the skin based on first bioimpedance detection data of the skin surface and at least one second bioimpedance detection data of the dermis and / or fat layer includes:

[0024] The impedance amplitude and phase are obtained based on the first bioimpedance detection data of the skin surface and at least one second bioimpedance detection data of the dermis and / or fat layer.

[0025] The condition of the skin is determined based on the impedance amplitude and phase.

[0026] In one embodiment, the method further includes:

[0027] If the bioimpedance detection data detected for a continuous preset time period are all the same, the beauty device will be controlled to stop.

[0028] In one embodiment, the method further includes: if the bioimpedance detection data detected for a continuous preset duration are all the same, reducing the output parameters of the beauty device.

[0029] Secondly, this application also provides a beauty device control device. The device includes:

[0030] The detection electrode control module is used to control the application of an electrical signal of a target frequency to the detection electrodes of the beauty device;

[0031] The detection module is used to acquire the target skin layer of the target skin layer by applying the electrical signal of the target frequency; and to detect the bioimpedance data of the target skin layer.

[0032] The analysis module is used to determine the skin condition based on the bioimpedance detection data of the target skin layer;

[0033] The excitation electrode control module is used to determine the target output parameters of the excitation electrode based on the condition of the skin, and control the excitation electrode of the beauty device to operate with the target output parameters.

[0034] Thirdly, this application also provides a beauty device. It includes a detection electrode, an excitation electrode, and a controller. The detection electrode and the excitation electrode are electrically connected to the controller, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the steps of the methods described in the above embodiments.

[0035] The aforementioned beauty instrument control method, device, and beauty instrument, since the output parameters of the excitation electrode are determined based on the detection results of the detection electrode, can adjust the output parameters of the excitation electrode in real time according to the bioimpedance detection results of the detection electrode, thereby achieving automatic adjustment of the beauty instrument's output parameters according to the skin condition. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the beauty device in one embodiment;

[0037] Figure 2 This is a schematic diagram of the electrode distribution of a beauty device in one embodiment;

[0038] Figure 3 This is a flowchart illustrating a beauty device control method in one embodiment;

[0039] Figure 4 This is a schematic diagram of the control process of an RF beauty device in one embodiment;

[0040] Figure 5 This is a structural block diagram of the beauty device control device in one embodiment;

[0041] Figure 6 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0043] The beauty device 100 provided in this application embodiment, such as Figure 1 As shown, it includes a detection electrode 101, an excitation electrode 102, and a controller 103. The detection electrode 101 and the excitation electrode 102 can directly contact the skin and act on the skin of the person in contact.

[0044] The number of detection electrodes 101 is unlimited. For example... Figure 2 As shown, there can be two detection electrodes 101, but it is not limited to two; more can be used. Since human skin exhibits different impedances at different frequencies, the number, size, positional distribution, and contact area of ​​the detection electrodes will all affect the detection results. Therefore, the number, size, and positional distribution of the detection electrodes can be set according to actual needs. The working principle of the detection electrodes is to apply an electrical signal of the target frequency to the detection electrodes to detect the skin they are applied to. The specific detection technology used by the detection electrodes is not limited; for example, BIA (Bio-impedance analysis) technology can be used.

[0045] The excitation electrode 102 is used as the excitation output of the beauty device, acting on the skin to perform cosmetic treatments. The working principle of the excitation electrode varies depending on the beauty device. Taking an RF beauty device as an example, the excitation electrode is an RF electrode head. Through radio frequency technology, the RF radio frequency waves output from the RF electrode head directly penetrate deep into the skin tissue, heating collagen. This causes the natural resistance of the subcutaneous tissue to generate heat energy, stimulating collagen proliferation, thereby achieving the purpose of tightening and shrinking the skin.

[0046] The detection electrode 101 is placed close to the excitation electrode 102. The number of excitation electrodes is not limited; there can be two, four, or more. For example... Figure 2 As shown, the four excitation electrodes 102 are evenly distributed, and the detection electrodes 101 are distributed among the four excitation electrodes, which enables the skin area detected by the detection electrodes to be consistent with the skin area acted upon by the excitation electrodes. Thus, the output parameters of the excitation electrodes are determined based on the detection results of the current skin area.

[0047] Both the detection electrode 101 and the excitation electrode 102 are electrically connected to the controller 103. The controller uses the bioimpedance data detected by the detection electrode 101 to determine the skin's condition, and based on this condition, determines the target output parameters of the excitation electrode 102, controlling it to operate at those parameters. Since the output parameters of the excitation electrode 102 are determined based on the detection results of the detection electrode 101, the controller can adjust these parameters in real time according to the bioimpedance data, achieving automatic adjustment of the beauty device's output parameters based on the skin's condition. The target output parameters can be at least one of the following: output frequency, output voltage amplitude, average output power, and control signal duty cycle.

[0048] Specifically, the controller implements a beauty device control method to automatically adjust the output parameters of the beauty device. For example... Figure 3 As shown, a cosmetic control method includes:

[0049] Step 302: Control the application of an electrical signal of the target frequency to the detection electrode of the beauty device.

[0050] To improve the accuracy of the detection, this embodiment employs BIA (Bio-impedance analysis) technology to measure the bioimpedance data of the skin. Human cells are immersed in conductive extracellular fluid, while cells consist of a cell membrane that selectively allows certain ions to pass through, enclosing conductive intracellular fluid. The electrical properties of the extracellular and intracellular fluids are close to resistance, while the cell membrane can be equivalent to capacitance. The equivalent circuit of the human body should be a series-parallel network composed of several resistors and capacitors. Based on this, an electrical signal of a target frequency can be applied using electrodes, and the bioimpedance of the skin can be detected based on the electrical signal.

[0051] Step 304: Obtain the target frequency electrical signal applied to the target skin layer and detect the bioimpedance data of the target skin layer.

[0052] Because non-adipose tissue has lower electrical impedance than adipose tissue, when alternating current is applied to the human body, the current will primarily flow through non-adipose tissue. The proportion of current flowing through intracellular and extracellular pathways depends on the frequency. At low frequencies, due to the presence of cell membrane capacitance, the resistance of the intracellular pathway is quite high, and the current flows almost exclusively through the extracellular pathway. As the current frequency increases, the proportion of current flowing through the intracellular pathway will increase.

[0053] The skin is divided into the epidermis, dermis, and subcutaneous tissue from the outside in. The subcutaneous tissue is mainly adipose tissue. At low frequencies, the current can only pass through the skin surface. As the current frequency increases, the current can pass through the dermis or adipose layer. Therefore, electrical signals of different frequencies can act on different structural layers of the skin, allowing for the detection of bioimpedance data of the target skin layer.

[0054] Step 306: Determine the skin condition based on the bioimpedance detection data of the target skin layer.

[0055] Specifically, the bioimpedance detection data of the target skin layer can reflect the moisture content, fatty and non-fat content of the target skin layer, and thus determine the skin condition based on the moisture content, fatty and non-fat content of the target skin layer.

[0056] The skin condition is detected in real-time by the detection electrodes, reflecting the state of the skin at the current location when the target frequency electrical signal is applied. It's understandable that the skin condition may change as the location of the beauty device changes during use. For example, the T-zone of the face typically produces more oil than other areas, resulting in different skin impedance. Therefore, the skin condition here refers to the condition of the skin at the location currently being acted upon by the beauty device's detection electrodes. Thus, the skin condition at a specific location can be determined tailored to the location being acted upon. In other words, the skin condition refers to the condition of a particular skin location, not an overall evaluation of the user's skin condition. For the same user, the skin condition can differ at different locations. For instance, the skin condition of the T-zone may differ from that of the cheeks.

[0057] Step 308: Determine the target output parameters of the excitation electrode based on the condition of the skin.

[0058] The target output parameter can be at least one of the following: output frequency, output voltage amplitude, average output power, and control signal duty cycle.

[0059] Among them, the target output parameters are the optimal output parameters for different skin conditions determined by a large number of experiments. Different skin conditions correspond to different target output parameters. The target output parameters are matched with the skin condition and can be adjusted in a targeted manner according to the skin condition to improve the skin condition.

[0060] Step 310: Control the excitation electrodes of the beauty device to operate with the target output parameters.

[0061] Specifically, the excitation electrodes of the beauty device operate with target output parameters to achieve the best beauty effect for the current skin condition.

[0062] Understandably, because this method can specifically determine the skin condition at the location where the beauty device is applied, as the user adjusts the skin location during use, the detection electrodes detect the changing skin condition at that location. The controller then determines the target output parameters suitable for the changed skin location based on the skin condition. This results in different target output parameters for the excitation electrodes at different locations, allowing each location to receive targeted beauty effects tailored to its specific skin condition.

[0063] In this embodiment, since the output parameters of the excitation electrode are determined based on the detection results of the detection electrode, the output parameters of the excitation electrode can be adjusted in real time according to the bioimpedance detection results of the detection electrode, thereby realizing automatic adjustment of the output parameters of the beauty device according to the skin condition.

[0064] Considering that different target frequencies of electrical signals affect different skin layers, different target frequencies can be set as needed to determine the skin condition based on the corresponding target skin layer.

[0065] In one embodiment, the target frequency includes a first frequency, and an electrical signal of the first frequency is applied to the skin surface layer, which is the target skin layer. Specifically, the first frequency electrical signal is applied to the detection electrodes of the beauty device, and the first frequency electrical signal is applied to the skin surface layer to detect bioimpedance data of the skin surface layer.

[0066] The first frequency is low-frequency. At low frequencies, due to the presence of cell membrane capacitance, the resistance of the intracellular pathway is quite high, and current can basically only pass through the extracellular pathway, meaning that current cannot pass through the cell. Therefore, at low frequencies, the electrical signal of the first frequency acts on the surface layer of the skin, and the bioimpedance detection data at this time is the impedance of the skin surface layer. Thus, the water content of the skin surface layer can be reflected, and the skin condition can be determined based on the water content of the surface skin.

[0067] In this embodiment, the condition of the skin is determined by bioimpedance detection data of the skin surface.

[0068] Specifically, the skin condition includes skin type. In this embodiment, the skin type is determined based on bioimpedance measurement data of the skin surface. Specifically, different water contents in the skin surface result in different bioimpedance, thus allowing the water content of the skin surface to be inferred from the bioimpedance measurement data, thereby determining the skin type. At least two skin types are defined, each with different target output parameters for the excitation electrode.

[0069] Specifically, impedance thresholds are pre-set for each skin type. The skin type is determined by comparing the bioimpedance data of the skin surface with each impedance threshold. For example, when the bioimpedance data is greater than the impedance threshold, the skin type is determined to be type 1; when the bioimpedance data is less than or equal to the impedance threshold, the skin type is determined to be type 2.

[0070] In this embodiment, by controlling the detection electrode to detect the bioimpedance data of the skin surface at a first frequency, the skin type is determined based on the bioimpedance data of the skin surface. This allows the output of the excitation electrode to be adjusted according to the skin type, so that the output of the excitation electrode matches the skin type, and the output of the beauty device can be automatically adjusted for different skin types.

[0071] Among them, the bioimpedance of the skin layer can be calculated by detecting the current passing through the skin by the electrical signal of the first frequency, and different currents can correspond to different skin types.

[0072] In one embodiment, skin types can be classified into dry skin, combination skin, oily skin, and normal skin. The bioimpedance corresponding to dry skin, combination skin, oily skin, and normal skin decreases in that order: the bioimpedance of dry skin > the bioimpedance of combination skin > the bioimpedance of oily skin > the bioimpedance of normal skin.

[0073] Correspondingly, a first impedance threshold is set to determine whether the skin type of the surface layer is dry, a second impedance threshold is set to determine whether the skin type of the surface layer is combination, a third impedance threshold is set to determine whether the skin type of the surface layer is oily, and a fourth impedance threshold is set to determine whether the skin type of the surface layer is neutral. Wherein, the first impedance threshold > the second impedance threshold > the third impedance threshold > the fourth impedance threshold.

[0074] By comparing the bioimpedance data of the skin surface with various impedance thresholds, the skin type can be determined. For example, if the bioimpedance data of the skin surface is greater than the first impedance threshold, the skin type can be determined to be dry. If the bioimpedance data of the skin surface is greater than the second impedance threshold but less than the first impedance threshold, the skin type can be determined to be combination.

[0075] Correspondingly, the target output parameters for dry, combination, oily, and normal skin types are different. For example, the output power for dry, combination, oily, and normal skin types is different, thus providing different stimulation based on the different skin types and improving the cosmetic effect.

[0076] Specifically, if the skin type is determined to be dry, it indicates that the user's skin is dehydrated and cracked. By increasing the output power of the excitation electrode, the skin's absorption of moisture can be promoted. If the skin type is determined to be oily, it indicates that the user's oily skin leads to clogged pores, affecting normal skin respiration and metabolism, which in turn causes inflammation and acne, indicating sensitive skin. By reducing the output parameters of the excitation electrode, excessive power can be used to prevent further irritation and exacerbation of inflammation.

[0077] In another embodiment, the target frequency includes a second frequency, and the electrical signal of the second frequency acts on the deep skin layer, which is the target skin layer. Specifically, the second frequency electrical signal is applied to the detection electrodes of the beauty device, and the second frequency electrical signal acts on the deep skin layer to detect bioimpedance data of the deep skin layer.

[0078] The deep skin layers include the dermis and / or the fat layer. As the current frequency increases, the proportion of current passing through intracellular pathways increases; that is, with increasing current frequency, the current can penetrate cells and detect the dermis or fat layer. Therefore, the second frequency can be a mid-frequency, in which case the electrical signal of the second frequency can act on the dermis. The second frequency can also be a high-frequency, in which case the electrical signal of the second frequency can act on the fat layer. It should be noted that the low, mid, and high frequencies in this embodiment are not the commonly defined high, medium, and low frequency bands in the industry, but rather relative definitions. For example, a low frequency can be 50 Hz, a mid-frequency can be 100 kHz, and a high frequency can be 500 kHz.

[0079] When a second-frequency electrical signal is applied to the dermis of the skin, the bioimpedance of the cells at the second frequency can be measured to determine the protein content; the lower the impedance, the higher the protein content.

[0080] When a second-frequency electrical signal is applied to the fat layer of the skin, the bioimpedance of the fat is measured at the second frequency. Fat is a poor conductor, and its content can be determined by its water content. Because fat contains little water, it has poor conductivity and high impedance; higher impedance indicates a higher fat content.

[0081] Therefore, a mid-frequency second frequency can be applied to the detection electrode, acting on the dermis of the skin. The bioimpedance data of the dermis determines its composition, and the skin's condition includes the composition of the dermis. Alternatively, a high-frequency second frequency can be applied to the detection electrode, acting on the fat layer of the skin. The bioimpedance data of the fat layer determines its composition, and the skin's condition includes the composition of the fat layer. Another approach is to apply a mid-frequency second frequency followed by a high-frequency second frequency. The mid-frequency second frequency acts on the dermis, and the bioimpedance data of the dermis is obtained. The high-frequency second frequency acts on the fat layer, and the bioimpedance data of the fat layer is also obtained. The bioimpedance data of both the dermis and fat layers determines their composition, and the skin's condition includes the composition of both layers.

[0082] In this embodiment, by controlling the detection electrode to detect the bioimpedance data of the deep skin layer at a second frequency, the component content of the deep skin layer is determined based on the bioimpedance data of the deep skin layer. Thus, the output of the excitation electrode can be adjusted according to the component content of the deep skin layer, so that the output of the excitation electrode matches the component content of the deep skin layer. For different component content of the deep skin layer, that is, for the state of the deep skin layer, the output of the beauty device can be automatically adjusted.

[0083] Specifically, the composition of the deep layers of the skin includes the protein content of the dermis and / or the fat content of the adipose layer; the higher the protein content of the dermis, the lower the corresponding target power parameter, and the higher the fat content of the adipose layer, the higher the corresponding target power parameter.

[0084] For example, when detecting with a mid-frequency electrical signal at the second frequency, such as 100kHz, the current primarily flows from inside the cell and can penetrate into the dermis. Measuring the intracellular impedance at this frequency reveals the protein content in the dermis; lower impedance indicates higher protein content. When detecting with a high-frequency electrical signal at the second frequency, such as 500kHz, the current can penetrate into the fat layer. Fat is a poor conductor, and its content can be determined by its water content. Because fat contains little water and has poor conductivity, it has high impedance; higher impedance indicates higher fat content.

[0085] The output parameters of the excitation electrode can be adjusted according to the protein content of the dermis or the fat content of the adipose layer. Specifically, the higher the protein content in the dermis, the lower the target power parameter; conversely, the higher the fat content in the adipose layer, the higher the target power parameter. In other words, for dermal proteins, the protein content is inversely proportional to the target adjustment parameter, e.g., the protein content is inversely proportional to the adjustment power. For adipose tissue, the fat content is directly proportional to the target adjustment parameter, e.g., the fat content is directly proportional to the adjustment power.

[0086] In this embodiment, the protein content of the dermis or the fat content of the adipose layer is detected, thereby providing different stimuli based on the protein content of the dermis or the fat content of the adipose layer to enhance the cosmetic effect.

[0087] The above implementation methods can either use only the first frequency to measure the skin texture of the superficial skin to obtain the skin condition, or use only the second frequency to measure the component content of the deeper skin layers to obtain the skin condition. A more preferred method is to combine the first or second frequency, and determine the skin condition based on the skin texture of the superficial skin, the component content of the dermis and / or the fat layer. This method considers not only the condition of the superficial skin but also the condition of the deeper skin layers, resulting in a better conditioning effect.

[0088] Specifically, acquiring target frequency electrical signals applied to the target skin layer and detecting the bioimpedance data of the target skin layer includes: acquiring first frequency electrical signals applied to the skin surface layer and detecting first bioimpedance data of the skin surface layer; acquiring at least one second frequency electrical signals applied to the dermis and / or fat layer and detecting at least one second bioimpedance data of the dermis and / or fat layer.

[0089] Correspondingly, the skin condition is determined based on the bioimpedance detection data of the target skin layer, including: determining the skin condition based on the first bioimpedance detection data of the skin surface layer and at least one second bioimpedance detection data of the dermis and / or fat layer.

[0090] Specifically, the target frequency includes a first frequency and at least one second frequency. That is, the impedance of the skin surface can be detected by first applying the first frequency to the detection electrode to obtain first bioimpedance detection data, and then at least one second frequency can be applied to the detection electrode to obtain at least one second bioimpedance detection data.

[0091] For processing the second-frequency electrical signal, one approach is to apply an intermediate-frequency second frequency to the detection electrode, then measure the impedance of the dermis to obtain a second bioimpedance impedance data point. Another approach is to apply a high-frequency second frequency to the detection electrode, then measure the impedance of the adipose layer to obtain a second bioimpedance impedance data point. A third approach is to first apply an intermediate-frequency second frequency, then apply a high-frequency second frequency, then measure the impedance of both the dermis and adipose layer to obtain two second bioimpedance impedance data points.

[0092] Correspondingly, the target skin layer includes the epidermis, dermis, and / or fat layer. In other words, in this embodiment, the impedance of the epidermis, dermis, and / or fat layer can be combined to consider not only the state of the surface skin but also the state of the deep skin, and to determine the corresponding target output parameters so that the overall skin condition is optimized and has better cosmetic power.

[0093] Specifically, determining the state of the skin based on first bioimpedance detection data of the skin surface and at least one second bioimpedance detection data of the dermis and / or fat layer includes: obtaining impedance amplitude and phase based on the first bioimpedance detection data of the skin surface and at least one second bioimpedance detection data of the dermis and / or fat layer; and determining the state of the skin based on the impedance amplitude and phase.

[0094] Taking a second-frequency electrical signal as a single example, firstly, the detection electrodes of the beauty device are controlled to apply a first-frequency electrical signal to obtain the first bioimpedance data X of the skin surface. Then, the detection electrodes of the beauty device are controlled to apply a second-frequency electrical signal to obtain the second bioimpedance data of the dermis or fat layer. Specifically, if the second frequency is mid-frequency, the obtained data is the second bioimpedance data of the dermis; if the second frequency is high-frequency, the obtained data is the second bioimpedance data of the fat layer.

[0095] Based on the first bioimpedance detection data X and the second bioimpedance detection data Y, the impedance amplitude and phase can be obtained.

[0096] in,

[0097] The first bioimpedance detection data is mainly generated through the moisture content of the surface skin, while the second bioimpedance detection data is mainly generated through the capacitance of the cell membrane.

[0098] in,

[0099] The phase angle can confirm the proportion of the second bioimpedance detection data in the total impedance, thereby confirming the composition of the human body.

[0100] The skin condition can be further determined based on the impedance amplitude and phase. For example, the impedance amplitude and phase can be compared with corresponding thresholds to determine the skin condition.

[0101] In this embodiment, the impedance amplitude and phase are calculated using the first bioimpedance detection data of the surface skin and the second bioimpedance detection data of the dermis or fat layer. The skin condition is determined based on the impedance amplitude and phase, thereby providing a way to determine the skin condition based on the impedance of the skin surface and the impedance of the dermis or fat layer.

[0102] To achieve comprehensive skin detection, the beauty device can first apply a first frequency electrical signal to the detection electrodes to detect the first bioimpedance data X of the skin surface. Then, a mid-frequency second frequency electrical signal is applied to the detection electrodes, followed by a high-frequency second frequency electrical signal. The second bioimpedance data Y includes the bioimpedance data of the dermis obtained from the mid-frequency electrical signal and the bioimpedance data of the fat layer obtained from the high-frequency electrical signal.

[0103] in,

[0104] The first bioimpedance detection data is mainly generated through the moisture content of the surface skin, while the second bioimpedance detection data is mainly generated through the capacitance of the cell membrane.

[0105] in,

[0106] The phase angle can confirm the proportion of the second bioimpedance detection data in the total impedance, thereby confirming the composition of the human body.

[0107] In practical applications of beauty devices, burns can occur if the excitation electrodes remain in contact with the same area of ​​skin for an extended period. Traditionally, this is addressed by adding a temperature sensor or position sensor between the excitation electrodes. However, both of these methods require additional detection equipment, increasing costs.

[0108] In this embodiment, a low-cost detection method is provided to address the risk of burns caused by prolonged contact of the excitation electrode with the same location.

[0109] Specifically, when BIA detects the skin impedance value at the same location on the face in real time, the returned skin impedance is a stable value. Therefore, based on the changes in bioimpedance data, it can be determined whether the beauty device has been applied to the same location on the skin for an extended period. If it has been applied to the same location on the skin for a long time, the output parameters can be adjusted to prevent burns.

[0110] This method utilizes the BIA (Biological Impedance Analysis) detection principle. BIA detection uses an electrode system on the skin's surface to deliver a small alternating current or voltage to the subject, detecting the corresponding impedance and its changes to represent relevant human information. The peak value of the response current is used as a detection parameter to measure the skin's moisture content. The response current does not immediately reach its maximum value; it requires the BIA detection electrodes to be in contact with the skin for a period of time to detect the most stable value. The rise time of the curve is approximately 1 second, and the final stable value is reached in about 2.5 seconds. The shape and speed of the rise curve are related to the electrode's contact with the skin, and the final stable maximum value of the curve generally remains unchanged for the same skin area. Therefore, when the measured bioimpedance data remains unchanged, it indicates that the beauty device has been fixed at the detection position for a period of time, thus determining whether the excitation electrode of the beauty device has remained at one skin location for an extended period.

[0111] If the bioimpedance data detected for a continuous preset duration are all the same, it can be determined that the beauty device has been applied to the same location for an extended period, and the device should be stopped. Alternatively, if the bioimpedance data detected for a continuous preset duration are all the same, it can be determined that the beauty device has been applied to the same location for an extended period, and the output parameters of the beauty device should be reduced. Both methods allow for adjustment of the operating parameters of the excitation electrode when prolonged application to the same location is detected, preventing skin burns.

[0112] Now, taking an RF beauty device as an example, we will explain the control method of the beauty device.

[0113] The RF beauty device uses a BIA electrode head as the detection electrode and an RF electrode head as the excitation electrode. Both the BIA and RF electrode heads are electrically connected to the controller 103. Figure 4 As shown, the controller 103 includes a BIA detection module, an RF power output module, and a control module. The BIA detection module applies an electrical signal of a target frequency to the BIA electrode head. The target frequency can be at least one of low frequency, medium frequency, and high frequency. After the BIA electrode head contacts the skin, it forms a circuit and detects the bioimpedance data of the skin at different frequencies. The BIA detection module sends the detected bioimpedance data to the control module. The control module determines the skin state and the target output parameters corresponding to the skin state based on the bioimpedance data. The control module sends the target output parameters to the RF power output module, which controls the RF electrode head of the RF beauty device to operate at the target output parameters.

[0114] The method of determining the skin state based on bioimpedance data obtained from at least one of low-frequency, mid-frequency, and high-frequency detection has been described in the previous embodiments and will not be repeated here.

[0115] Meanwhile, BIA detection also determines whether the beauty device has been left in the same position on the skin for an extended period of time based on changes in the detected bioimpedance data. If it is determined that the beauty device has been left in the same position on the skin for an extended period of time, the device will be stopped or its output parameters will be reduced to prevent the skin from being burned.

[0116] This RF beauty device uses a controller to adjust the output parameters of the RF electrode head in real time according to the skin condition, improving both adjustment efficiency and beauty efficacy. It also prevents skin burns.

[0117] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0118] Based on the same inventive concept, this application also provides a beauty instrument control device for implementing the aforementioned beauty instrument control method. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more beauty instrument control device embodiments provided below can be found in the limitations of the beauty instrument control method described above, and will not be repeated here.

[0119] In one embodiment, such as Figure 5 As shown, a beauty device control device is provided, comprising:

[0120] The detection electrode control module 502 is used to control the application of an electrical signal of a target frequency to the detection electrodes of the beauty device.

[0121] The detection module 504 is used to acquire the bioimpedance data of the target skin layer obtained by the target frequency electrical signal acting on the target skin layer.

[0122] Analysis module 506 is used to determine the condition of the skin based on bioimpedance detection data of the target skin layer.

[0123] Matching module 508 is used to determine the target output parameters of the excitation electrode based on the condition of the skin;

[0124] The excitation electrode control module 510 is used to control the excitation electrodes of the beauty device to operate with target output parameters.

[0125] In one embodiment, the target frequency includes a first frequency, and an electrical signal of the first frequency acts on the skin surface layer, the target skin layer including the skin surface layer;

[0126] The analysis module is used to determine the skin type based on bioimpedance detection data of the skin surface. The skin condition includes skin type.

[0127] In one embodiment, skin types include: dry skin, combination skin, oily skin, and normal skin, with the bioimpedance detection data decreasing sequentially for dry skin, combination skin, oily skin, and normal skin; and the target output parameters corresponding to dry skin, combination skin, oily skin, and normal skin increasing sequentially.

[0128] In one embodiment, the target frequency includes a second frequency, and the electrical signal of the second frequency acts on the deep skin layer, which includes the deep skin layer.

[0129] The analysis module is used to determine the skin condition based on the bioimpedance detection data of the target skin layer, including: determining the component content of the deep skin layer based on the bioimpedance detection data of the deep skin layer, and the skin condition includes the component content of the deep skin layer.

[0130] In one embodiment, the composition of the deep skin layer includes the protein content of the dermis and / or the fat content of the adipose layer; the higher the protein content of the dermis, the lower the corresponding target power parameter, and the higher the fat content of the adipose layer, the higher the corresponding target power parameter.

[0131] In one embodiment, the target frequency includes a first frequency and at least one second frequency; the electrical signal of the first frequency acts on the skin surface layer; the electrical signal of at least one second frequency acts on the dermis and / or fat layer of the skin; the target skin layer includes the skin surface layer, the dermis layer and / or the fat layer; the bioimpedance detection data includes first bioimpedance detection data and at least one second bioimpedance detection data.

[0132] The detection module is used to acquire first bioimpedance data of the skin surface layer when an electrical signal of a first frequency is applied to the skin surface layer; and to acquire at least one second bioimpedance data of the dermis and / or fat layer when an electrical signal of at least one second frequency is applied to the skin surface layer.

[0133] The analysis module is used to determine the condition of the skin based on first bioimpedance detection data of the skin surface and at least one second bioimpedance detection data of the dermis and / or fat layer.

[0134] The analysis module is used to obtain impedance amplitude and phase based on first bioimpedance detection data of the skin surface and at least one second bioimpedance detection data of the dermis and / or fat layer; and to determine the state of the skin based on the impedance amplitude and phase.

[0135] In one embodiment, the excitation electrode control module is further configured to control the beauty device to stop if the bioimpedance detection data detected for a continuous preset time are all the same, or to reduce the output parameters of the beauty device if the bioimpedance detection data detected for a continuous preset time are all the same.

[0136] Each module in the aforementioned beauty device control unit can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the computer device's memory as software, so that the processor can call and execute the corresponding operations of each module.

[0137] In one embodiment, a computer device is provided, which may be a beauty instrument, and its internal structure diagram may be as follows: Figure 6As shown, the computer device includes a processor, memory, communication interface, display screen, and input device connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a method for controlling a beauty device. The display screen can be an LCD screen or an e-ink screen, used to display beauty parameters, working modes, etc. The input device can be a touch layer covering the display screen or buttons on the device's casing.

[0138] Those skilled in the art will understand that Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0139] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the steps of the beauty device control method of the above embodiments.

[0140] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps of the beauty device control method of the above embodiments.

[0141] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of the beauty device control method of the above embodiments.

[0142] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0143] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0144] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for controlling a cosmetic device, the method comprising: receiving a user input; and determining a control mode of the cosmetic device based on the user input. The method comprises: controlling the detection electrode of the beauty instrument to apply an electric signal of a target frequency; obtaining the target skin layer of the skin to which the electric signal of the target frequency acts, and detecting the bioimpedance detection data of the target skin layer obtained; the bioimpedance detection data is used to reflect the moisture content, protein, and fat content of the target skin layer; the target frequency is different, and the target skin layer corresponding to the action is different; the bioimpedance detection data is measured by bioelectric resistance measurement; when the bioelectric resistance measurement is used to detect the skin impedance value at the same position, the feedback bioimpedance detection data is a stable value; determining the state of the skin according to the bioimpedance detection data of the target skin layer; determining the target output parameter of the excitation electrode according to the state of the skin; controlling the excitation electrode of the beauty instrument to operate at the target output parameter; wherein the target frequency comprises a first frequency and at least one second frequency; the electric signal of the first frequency acts on the skin surface layer of the skin; the electric signal of the at least one second frequency acts on the dermis layer and / or fat layer of the skin; the target skin layer comprises the skin surface layer, the dermis layer and / or fat layer; the bioimpedance detection data comprises first bioimpedance detection data and at least one second bioimpedance detection data; the obtaining the target skin layer of the skin to which the electric signal of the target frequency acts, and detecting the bioimpedance detection data of the target skin layer obtained, comprises: obtaining the first bioimpedance detection data of the skin surface layer of the skin to which the electric signal of the first frequency applied to the detection electrode acts; obtaining at least one second bioimpedance detection data of the dermis layer and / or fat layer of the skin to which the electric signal of at least one second frequency applied to the detection electrode acts; the determining the state of the skin according to the bioimpedance detection data of the target skin layer comprises: determining the state of the skin according to the first bioimpedance detection data of the skin surface layer and the at least one second bioimpedance detection data of the dermis layer and / or fat layer; the state of the skin comprises the skin type and the component content of the deep skin layer; the method further comprises: if the bioimpedance detection data detected continuously for a preset time length are all the same, controlling the beauty instrument to stop, or reducing the output parameter of the beauty instrument.

2. The method of claim 1, wherein, the determining the state of the skin according to the bioimpedance detection data of the target skin layer comprises: determining the skin type of the skin according to the bioimpedance detection data of the skin surface layer.

3. The method of claim 2, wherein, The skin type comprises: dry skin, mixed skin, oily skin, and neutral skin, and the bioimpedance detection data of the dry skin, mixed skin, oily skin, and neutral skin decreases in turn; the target output parameters corresponding to the dry skin, mixed skin, oily skin, and neutral skin are different.

4. The method of claim 1, wherein, the determining the state of the skin according to the bioimpedance detection data of the target skin layer comprises: determining the component content of the deep skin layer according to the bioimpedance detection data of the deep skin layer.

5. The method of claim 4, wherein, The component content of the deep skin layer includes the protein content of the dermis layer and / or the fat content of the fat layer; the higher the protein content of the dermis layer, the smaller the corresponding target power parameter, and the higher the fat content of the fat layer, the larger the corresponding target power parameter.

6. The method of claim 1, wherein, According to the first bioimpedance detection data of the skin surface layer and the at least one second bioimpedance detection data of the dermis layer and / or the fat layer, the state of the skin is determined, including: According to the first bioimpedance detection data of the skin surface layer and the at least one second bioimpedance detection data of the dermis layer and / or the fat layer, the impedance amplitude and phase are obtained; According to the impedance amplitude and phase, the state of the skin is determined.

7. A cosmetic apparatus control device characterized by comprising: The device includes: A detection electrode control module for controlling the detection electrode of the beauty instrument to apply an electric signal of a target frequency; A detection module for obtaining the target skin layer of the skin acted on by the electric signal of the target frequency, and detecting the obtained bioimpedance detection data of the target skin layer; the bioimpedance detection data is used to reflect the water content, protein, and fat content of the target skin layer; the target frequency is different, and the corresponding target skin layer is different; the bioimpedance detection data is measured by bioelectric resistance measurement method; when the bioelectric resistance measurement method is used to detect the impedance value of the skin at the same position, the feedback bioimpedance detection data is a stable value; An analysis module for determining the state of the skin according to the bioimpedance detection data of the target skin layer; A matching module for determining the target output parameter of the excitation electrode according to the state of the skin; An excitation electrode control module for controlling the excitation electrode of the beauty instrument to operate at the target output parameter; The target frequency includes a first frequency and at least one second frequency; the electric signal of the first frequency acts on the skin surface layer of the skin; the electric signal of the at least one second frequency acts on the dermis layer and / or the fat layer of the skin; the target skin layer includes the skin surface layer, the dermis layer and / or the fat layer; the bioimpedance detection data includes first bioimpedance detection data and at least one second bioimpedance detection data; The detection module is used to obtain the first bioimpedance detection data of the skin surface layer of the skin acted on by the electric signal of the first frequency applied to the detection electrode, and to obtain the at least one second bioimpedance detection data of the dermis layer and / or the fat layer of the skin acted on by the electric signal of the at least one second frequency applied to the detection electrode; The analysis module is used to determine the state of the skin according to the first bioimpedance detection data of the skin surface layer and the at least one second bioimpedance detection data of the dermis layer and / or the fat layer; the state of the skin includes skin type and component content of the deep skin layer; The excitation electrode control module is also used to control the beauty instrument to stop or reduce the output parameter of the beauty instrument if the bioimpedance detection data detected continuously for a preset time length are all the same.

8. The cosmetic instrument control device according to claim 7, characterized by The analysis module is configured to determine a skin texture type of the skin according to the bioimpedance detection data of the skin surface layer, and the state of the skin includes the skin texture type.

9. The apparatus of claim 7, wherein, The analysis module is configured to determine a component content of the deep skin layer according to the bioimpedance detection data of the deep skin layer.

10. A cosmetic instrument, comprising a detection electrode, an excitation electrode and a controller, the detection electrode and the excitation electrode being electrically connected with the controller respectively, the controller comprising a memory and a processor, the memory storing a computer program, characterized in that, The processor implements the steps of the method in any one of claims 1 to 6 when executing the computer program.

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