CN-121243628-B - Bioelectricity-based local shaping beauty instrument and control method thereof

Abstract

The application provides a bioelectricity-based local shaping beauty instrument and a control method thereof, wherein the method comprises the steps of determining an impedance detection sequence of a selected area; the method comprises the steps of selecting a local contraction frequency of a selected area according to an impedance fluctuation curve, determining the symmetrical area of the selected area, extracting the symmetrical contraction frequency corresponding to the symmetrical area, carrying out symmetrical frequency analysis based on the local contraction frequency and the symmetrical contraction frequency, determining the contraction frequency super-dispatching corresponding to the selected area, judging whether the selected area is the contraction super-dispatching area based on the contraction frequency super-dispatching, and adjusting the output signal frequency of a bioelectrode in the contraction super-dispatching area based on the contraction frequency super-dispatching.

Inventors

• HU JIAYING
• MA XUEMEI
• LIN JIAQI
• HU YUANXIONG

Assignees

• 深圳市亮而彩科技有限公司

Dates

Publication Date

20260505

Application Date

20251204

Claims (8)

1. 1. A control method of a bioelectricity-based local shaping beauty instrument, which is characterized by comprising the following steps: The method comprises the steps of obtaining electrode signals output by the bioelectrodes, generating detection pulse signals based on pulse frequencies and pulse amplitudes of the electrode signals, and superposing and outputting the electrode signals and the detection pulse signals; Constructing an impedance fluctuation curve according to the impedance detection sequence, acquiring a bioelectric signal of the selected area, and performing coupling characteristic analysis according to the bioelectric signal of the selected area and the impedance fluctuation curve to obtain a signal coupling index, wherein the method specifically comprises the following steps: extracting a signal period of the impedance fluctuation curve; Generating a plurality of delay times based on the signal period of the impedance fluctuation curve, performing cross correlation value calculation on any delay by adopting a cross correlation function, and taking the maximum value of the cross correlation function as the signal coupling index; When the signal linkage characteristic is higher than a preset threshold value, extracting the local contraction frequency of the selected region according to the impedance fluctuation curve; Determining a symmetrical area of the selected area, extracting symmetrical shrinkage frequency corresponding to the symmetrical area, and performing super-scheduling comparison between the local shrinkage frequency and the symmetrical shrinkage frequency to determine shrinkage frequency super-scheduling corresponding to the selected area; And judging whether the selected area is a shrinkage overshoot area based on the shrinkage frequency super-scheduling, and adjusting the output signal frequency of the bioelectrode in the shrinkage overshoot area by taking the shrinkage frequency super-scheduling as a control parameter.
2. 2. The method of claim 1, wherein determining the impedance detection sequence for the selected region based on the pulse feedback signal of the detection pulse signal comprises: acquiring current transient responses corresponding to all time points in the pulse feedback signal; the pulse feedback signal and the detection pulse signal are aligned in time sequence, and detection impedance is determined according to current transient response and voltage amplitude of the detection pulse signal; and generating an impedance detection sequence according to the detection impedance corresponding to each time point.
3. 3. The method of claim 1 wherein extracting the local contraction frequency of the selected region from the impedance fluctuation curve comprises obtaining a plurality of local impedance peaks in the impedance fluctuation curve, and extracting the local contraction frequency of the selected region based on an average time interval of the impedance peaks.
4. 4. The method of claim 1, wherein adjusting the output signal frequency of the bioelectrodes in the shrink overshoot zone using the shrink frequency super-schedule as a control parameter comprises: acquiring the output signal frequency of the bioelectrode in the contraction overshoot area, and performing proportional frequency reduction according to the contraction frequency overshoot and a preset proportional mapping factor to obtain a corresponding initial pulse frequency; and the bioelectrode in the shrinkage overshoot area outputs electrode signals based on the initial pulse frequency, detects shrinkage frequency overshoot as a feedback factor in real time, and corrects the initial pulse frequency until the shrinkage frequency overshoot is positioned in a preset overshoot zone.
5. 5. The method of claim 1, wherein bioelectrode signal output is based on a preset reference signal frequency when the signal linkage characteristic is below a preset threshold.
6. 6. A bioelectrical-based local shaping cosmetic apparatus comprising a frequency control unit for performing a bioelectrical-based local shaping cosmetic apparatus control method as claimed in any one of claims 1 to 5, characterized in that the frequency control unit comprises: The impedance detection module is used for superposing detection pulse signals on the bioelectrodes in the selected area, carrying out impedance analysis according to pulse feedback signals of the detection pulse signals and determining an impedance detection sequence of the selected area; The signal processing module is used for constructing an impedance fluctuation curve according to the impedance detection sequence, acquiring a bioelectric signal of the selected area, and carrying out coupling characteristic analysis according to the bioelectric signal of the selected area and the impedance fluctuation curve to obtain a signal coupling index; The decision module is used for extracting the local contraction frequency of the selected area according to the impedance fluctuation curve when the signal linkage characteristic is higher than a preset threshold value; The signal analysis module is used for determining a symmetrical area of the selected area, extracting symmetrical shrinkage frequency corresponding to the symmetrical area, and determining shrinkage frequency super-scheduling corresponding to the selected area by performing super-scheduling comparison between the local shrinkage frequency and the symmetrical shrinkage frequency; And the frequency adjusting module is used for judging whether the selected area is a shrinkage overshoot area according to the shrinkage frequency super-scheduling, and adjusting the output signal frequency of the bioelectrode in the shrinkage overshoot area by taking the shrinkage frequency super-scheduling as a control parameter.
7. 7. A computer terminal device, characterized in that it comprises a memory storing a code and a processor configured to acquire the code and to execute a control method of a bioelectrical-based local shaping cosmetic apparatus according to any one of claims 1 to 5.
8. 8. A computer-readable storage medium storing at least one computer program, wherein the computer program is loaded and executed by a processor to implement operations performed by a control method of a bioelectrical-based local shaping cosmetic apparatus according to any one of claims 1 to 5.

Description

Bioelectricity-based local shaping beauty instrument and control method thereof Technical Field The application relates to the technical field of signal frequency control, in particular to a bioelectricity-based local shaping beauty instrument and a control method thereof. Background The local shaping beautifying instrument is one kind of beautifying physiotherapy equipment based on bionic current stimulating technology, and has the core of outputting modulated weak current to local tissue on the surface of skin to simulate the biological pulse current of nerve signal and produce rhythmic contraction of target muscle group to improve the metabolic state and blood circulation of local tissue. In the prior art, because the physiological characteristics of users are different, different feeling differences can be caused when the biological pulse currents with the same control parameters are stimulated, even on the same user, the tissue areas which are bilaterally symmetrical can easily generate different muscle contractions due to the differences of muscle density, fat thickness or skin resistance, so that the use body feeling of the two sides of the body is inconsistent when the user carries out multipath current output in the local shaping beauty instrument, and the use experience of the user of the local shaping beauty instrument is reduced. Disclosure of Invention The application provides a bioelectricity-based local shaping beauty instrument and a control method thereof, which can adjust the frequency of a pulse current signal based on impedance fluctuation of a bilateral area, avoid deviation of body feeling effect of the bilateral area and improve comfort of a user of the local shaping beauty instrument. In a first aspect, the present application provides a control method of a bioelectrical-based local shaping beauty apparatus, which may be performed by a network device or may be performed by a chip configured in the network device, which is not limited thereto. Specifically, the method comprises the following steps: Superposing detection pulse signals on the bioelectrodes in the selected area, and carrying out impedance analysis according to pulse feedback signals of the detection pulse signals to determine an impedance detection sequence of the selected area; Constructing an impedance fluctuation curve according to the impedance detection sequence, acquiring a bioelectric signal of the selected area, and performing coupling characteristic analysis according to the bioelectric signal of the selected area and the impedance fluctuation curve to obtain a signal coupling index; When the signal linkage characteristic is higher than a preset threshold value, extracting the local contraction frequency of the selected region according to the impedance fluctuation curve; Determining a symmetrical area of the selected area, extracting symmetrical shrinkage frequency corresponding to the symmetrical area, and performing super-scheduling comparison between the local shrinkage frequency and the symmetrical shrinkage frequency to determine shrinkage frequency super-scheduling corresponding to the selected area; And judging whether the selected area is a shrinkage overshoot area based on the shrinkage frequency super-scheduling, and adjusting the output signal frequency of the bioelectrode in the shrinkage overshoot area by taking the shrinkage frequency super-scheduling as a control parameter. With reference to the first aspect, in certain implementation manners of the first aspect, performing impedance analysis according to the pulse feedback signal of the detection pulse signal, determining an impedance detection sequence of the selected area specifically includes: acquiring current transient responses corresponding to all time points in the pulse feedback signal; the pulse feedback signal and the detection pulse signal are aligned in time sequence, and detection impedance is determined according to current transient response and voltage amplitude of the detection pulse signal; and generating an impedance detection sequence according to the detection impedance corresponding to each time point. With reference to the first aspect, in some implementations of the first aspect, performing coupling characteristic analysis according to the bioelectric signal of the selected area and the impedance fluctuation curve, the obtaining a signal coupling index specifically includes: extracting a signal period of the impedance fluctuation curve; And generating a plurality of delay times based on the signal period of the impedance fluctuation curve, performing cross correlation value calculation on any delay by adopting a cross correlation function, and taking the maximum value of the cross correlation function as the signal coupling index. With reference to the first aspect, in certain implementation manners of the first aspect, extracting the local contraction frequency of the selected region according to the impedance fluctuati