Function multiplexing pulse signal output circuit, beauty instrument and control method

Abstract

The invention relates to the technical field of beauty instruments, and discloses a function multiplexing pulse signal output circuit, a beauty instrument and a control method, and the circuit comprises a rectangular pulse signal generation module which is used for generating a rectangular pulse signal; the rectangular pulse signal shaping module is used for converting the rectangular pulse signal into a positive and negative symmetric rectangular pulse signal; the first function control module is used for outputting positive and negative symmetric rectangular pulse signals to the first metal electrode; the second function control module is used for converting the positive and negative symmetrical rectangular pulse signals into sine pulse signals and outputting the sine pulse signals to the second metal electrode; and the control module is used for conducting the rectangular pulse signal generation module, the rectangular pulse signal shaping module and the first function control module to execute a leading-in function, or conducting the rectangular pulse signal generation module, the rectangular pulse signal shaping module and the second function control module to execute a micro-current function. Function multiplexing of the beauty instrument can be realized based on the same circuit, the circuit composition is simplified, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of beauty instruments, and in particular to a pulse signal output circuit with multiplexing functions, a beauty instrument and a control method. Background Art

[0002] The skin care product introduction function and the microcurrent function are the two core functions of beauty instruments. The beauty instrument products on the market currently have the following shortcomings: 1) When the handheld beauty instrument products on the market run the microcurrent function, they use a transformer solution to generate the required EMS (Electrical Muscle Stimulation) signal, and the operating frequency is generally around 20KHz. Professional research shows that the optimal frequency of muscle stimulation is 1 to 5KHz, and the traditional circuit has a poor stimulation effect and poor beauty effect. 2) The introduction function of the beauty instrument is mainly used to effectively deliver nutrients or therapeutic ingredients to the deep layers of the skin to achieve better skin care effects. The common technology in the market is ion introduction technology (Iontophoresis), which usually uses a working pulse signal in the form of DC or DC pulse, while EMS is an AC pulse. Therefore, in the prior art, the industry usually uses independent generation modules for the microcurrent function and the introduction function, which increases the cost of the beauty instrument. Summary of the invention

[0003] In view of this, the present invention provides a pulse signal output circuit with function multiplexing, a beauty instrument and a control method to solve the problem of independent functional modules and high cost of the beauty instrument.

[0004] In a first aspect, the present invention provides a function-multiplexed pulse signal output circuit, comprising:

[0005] A rectangular pulse signal generating module, used for generating a rectangular pulse signal of a preset frequency;

[0006] A rectangular pulse signal shaping module, connected to the rectangular pulse signal generating module, for converting the rectangular pulse signal into a positive and negative symmetrical rectangular pulse signal of the preset frequency;

[0007] A first function control module is connected to the rectangular pulse signal shaping module and is used to output positive and negative symmetrical rectangular pulse signals to the first metal electrode;

[0008] A second function control module is connected to the rectangular pulse signal shaping module, and is used to convert the positive and negative symmetrical rectangular pulse signal into a sinusoidal pulse signal of a preset frequency, and output the sinusoidal pulse signal to the second metal electrode;

[0009] The control module is connected to the rectangular pulse signal generating module, the first function control module and the second function control module, and is used to turn on the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module according to the selected function mode and / or gear information to perform the import function, or turn on the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module to perform the microcurrent function.

[0010] The functional multiplexing pulse signal output circuit provided by the present invention turns on the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first functional control module according to the functional mode and / or gear information through the control module, the rectangular pulse signal generating module generates a rectangular pulse signal of a preset frequency, the rectangular pulse signal shaping module converts the rectangular pulse signal into a positive and negative symmetrical rectangular pulse signal, the first functional control module outputs the positive and negative symmetrical rectangular pulse signal to the corresponding metal electrode to perform the import function, or turns on the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second functional control module, the rectangular pulse signal generating module generates a rectangular pulse signal of a preset frequency, which is converted into a positive and negative symmetrical rectangular pulse signal by the rectangular pulse signal shaping module, the second functional control module converts the positive and negative symmetrical rectangular pulse signal into a sinusoidal pulse signal, and outputs it to the corresponding metal electrode to perform the microcurrent function. The present invention controls the conduction of different modules in the same circuit, can output different pulse signals at different nodes based on the same circuit, execute corresponding functions, realize functional multiplexing of the same circuit, simplify the internal circuit composition, and reduce the cost of the beauty instrument. At the same time, it can generate corresponding pulse signals according to functional requirements, ensure the efficient operation of each function, improve the beauty effect of the beauty instrument, and enhance the user experience.

[0011] In an optional embodiment, the rectangular pulse signal generating module includes: a first power supply; a timer, a power supply end connected to the positive electrode of the first power supply, and a ground end connected to the ground point and the negative electrode of the first power supply; a first resistor, a first end connected to the reset end of the timer, and a second end connected to the discharge end of the timer; a second resistor, a first end connected to the second end of the first resistor, and a second end connected to the threshold end and trigger end of the timer; a first capacitor, a first end connected to the second end of the second resistor, and a second end connected to the ground point.

[0012] The present invention deploys a pulse generation module, which can generate a pulse signal of the optimal frequency required for the microcurrent function by adjusting the parameters of circuit components, optimize the stimulation to the skin, and thus improve the microcurrent beauty effect.

[0013] In an optional implementation, the resistance value corresponding to the second resistor is at least ten times higher than the resistance value corresponding to the first resistor.

[0014] The present invention limits the resistance values ​​of different resistors in the shaped pulse generating module, thereby ensuring that the high and low level proportions of the generated pulse signal are close, and then outputting a rectangular pulse signal with an optimal frequency, thereby improving the beauty effect of the microcurrent function of the beauty instrument.

[0015] In an optional implementation, the rectangular pulse signal shaping module includes: a second capacitor, a first end of which is connected to the output end of the timer.

[0016] In an optional implementation, the first function control module includes: a first switch, a first end of which is connected to the second end of the second capacitor, and a second end of which is connected to the first metal electrode.

[0017] The present invention converts a rectangular pulse signal into a positive and negative symmetrical rectangular pulse signal through a capacitor, and outputs the positive and negative symmetrical rectangular pulse signal to a metal electrode corresponding to the import function by turning on a corresponding switch, and can determine whether to execute the import function through switch control based on the current circuit to implement or shut down the import function. By using positive and negative symmetrical rectangular pulse signals to execute the import function, the electrochemical corrosion problem caused by the DC or DC pulse form import function can be solved, and the efficiency is higher.

[0018] In an optional embodiment, the second function control module includes: a charge and discharge voltage divider unit, connected to the second end of the second capacitor, and used to convert the positive and negative symmetrical rectangular pulse signal into a quasi-sinusoidal pulse signal; a signal amplification unit, connected to the charge and discharge voltage divider unit, and used to amplify and shape the amplitude of the quasi-sinusoidal pulse signal to obtain a sinusoidal pulse signal.

[0019] The present invention converts positive and negative symmetrical rectangular pulse signals into quasi-sinusoidal pulse signals and performs an amplitude method on the quasi-sinusoidal pulse signals to obtain the optimal frequency sinusoidal pulse signals required for the microcurrent function, thereby achieving the best cosmetic effect.

[0020] In an optional embodiment, the charge and discharge voltage dividing unit includes: a third resistor, a first end of which is connected to the second end of the second capacitor; a fourth resistor, a first end of which is connected to the second end of the third resistor, and a second end of which is connected to an enable control end of the control module; a fifth resistor, a first end of which is connected to the second end of the third resistor, and a second end of which is connected to a ground point; and a third capacitor, a first end of which is connected to the second end of the third resistor, and a second end of which is connected to the ground point.

[0021] The present invention uses a charge and discharge voltage divider unit to convert positive and negative symmetrical rectangular pulse signals into quasi-sinusoidal pulse signals on the basis of realizing an import function based on positive and negative symmetrical rectangular pulse signals, thereby realizing functional multiplexing of the same pulse signal and reducing the design cost of the beauty instrument.

[0022] In an optional embodiment, the signal amplification unit includes: a second power supply; a fourth capacitor, a first end of which is connected to the second end of the third resistor; an operational amplifier, a positive input end of which is connected to the second end of the fourth capacitor, a positive power supply end of which is connected to the positive electrode of the second power supply, and a negative power supply end of which is connected to the ground point; a sixth resistor, a first end of which is connected to the positive electrode of the second power supply, and a second end of which is connected to the positive input end of the operational amplifier; a seventh resistor, a first end of which is connected to the second end of the sixth resistor, and a second end of which is connected to the negative electrode of the second power supply and the ground point; an eighth resistor, a first end of which is connected to the negative input end of the operational amplifier, and a second end of which is connected to the output end of the operational amplifier; a ninth resistor, a first end of which is connected to the negative input end of the operational amplifier; a fifth capacitor, a first end of which is connected to the second end of the eighth resistor, and a second end of which is connected to the ground point; a tenth resistor, a first end of which is connected to the output end of the operational amplifier; a sixth capacitor, a first end of which is connected to the second end of the tenth resistor, and a second end of which is connected to the ground point; a seventh capacitor, a first end of which is connected to the output end of the operational amplifier; a second switch, a first end of which is connected to the second end of the seventh capacitor, and a second end of which is connected to the second metal electrode.

[0023] The present invention can increase the amplitude of the quasi-sinusoidal pulse signal through the second power supply and corresponding components, and convert it into a sine pulse signal whose amplitude and frequency meet the requirements of the microcurrent function, thereby improving the beauty effect of the microcurrent function. At the same time, by controlling the opening of the corresponding switch to output the sine pulse signal to the metal electrode corresponding to the microcurrent function, it can determine whether to turn on the microcurrent function according to the user's use requirements.

[0024] In an optional implementation, control ends corresponding to the first power supply, the second power supply, the first switch, and the second switch are respectively connected to the control end of the control module.

[0025] The present invention connects the corresponding power supply and switch through the control module, and can control the on or off of each power supply and switch according to the selected functional mode, thereby executing different functions and realizing the multiplexing of the introduction function and the microcurrent function in the same circuit.

[0026] In a second aspect, the present invention provides a functional multiplexing beauty instrument, comprising:

[0027] External buttons for selecting function modes and / or gear information;

[0028] The function-multiplexed pulse signal output circuit of the first aspect or any corresponding embodiment thereof, connected to an external key, for outputting a pulse signal;

[0029] The metal electrode is connected to the function-multiplexing pulse signal output circuit and is used to apply the pulse signal to the user's skin.

[0030] The present invention controls the conduction of different modules in the same circuit, can output different pulse signals at different nodes based on the same circuit, execute corresponding functions, realize functional multiplexing of the same circuit, simplify the internal circuit composition, and reduce the cost of the beauty instrument. At the same time, it can generate corresponding pulse signals according to functional requirements, ensure the efficient operation of each function, improve the beauty effect of the beauty instrument, and enhance the user experience.

[0031] In an optional implementation, the beauty instrument further includes: a buzzer and an indicator light, which are respectively connected to the control module and are used to send out a buzzer indication signal or a light indication signal.

[0032] The present invention can send out indication signals by deploying buzzers and indicator lights to remind users to perform operations such as face changing, thereby ensuring beauty effects.

[0033] In a third aspect, the present invention provides a control method for a functionally multiplexed beauty instrument, which is applied to a control module of a pulse signal output circuit in a beauty instrument according to the first aspect or any corresponding embodiment thereof, and the method comprises:

[0034] After detecting the power-on signal, obtaining the selected function mode and / or gear information;

[0035] According to the function mode and / or gear information, the rectangular pulse signal generation module, the rectangular pulse signal shaping module and the first function control module of the beauty instrument are turned on to perform the import function, or the rectangular pulse signal generation module, the rectangular pulse signal shaping module and the second function control module are turned on to perform the microcurrent function;

[0036] Obtain the running time of the import function or the microcurrent function, and disconnect the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module according to the running time, or disconnect the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module.

[0037] The control method of the functionally reused beauty instrument provided by the present invention can provide users with different beauty functions on the basis of the same circuit, realize functional reuse of the circuit, and reduce the cost of the beauty instrument while ensuring the beauty effect, by controlling the conduction of different modules according to the functional mode and / or gear information selected by the user after power-on, executing the introduction function or the microcurrent function, and controlling the disconnection of the corresponding modules according to the running time corresponding to each function.

[0038] In an optional embodiment, the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module of the beauty instrument are turned on according to the function mode and / or the gear information to execute the import function, or the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module are turned on to execute the microcurrent function, including: if the function mode is the import function, the first power supply of the rectangular pulse signal generating module is turned on; the first operating time is obtained, and if the first operating time exceeds the first time threshold, the first switch of the first function control module is turned on; or, if the function mode is the microcurrent function, the gear information is obtained; if the gear information is the first gear, the enable control end of the main control mode is set to the first potential, and if the gear information is the second gear, the enable control end is set to the second potential; the first power supply of the rectangular pulse signal generating module and the second power supply of the first power supply of the rectangular pulse signal generating module are turned on; the second operating time is obtained, and if the second operating time exceeds the second time threshold, the second switch of the second function control module is turned on.

[0039] The present invention can control the on-time of the corresponding module by judging the running time of different functions, thereby ensuring that the corresponding module outputs a stable pulse when on, thereby improving the beauty effect.

[0040] In an optional embodiment, the operating time of the import function or the microcurrent function is obtained, and the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module are disconnected according to the operating time, or the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module are disconnected, including: obtaining a third operating time, and if the third operating time exceeds a third time threshold or a fourth time threshold, a buzzer indication signal or a light indication signal is generated; obtaining a fourth operating time, and if the fourth operating time exceeds the third time threshold or the fourth time threshold, the first power supply and the first switch are disconnected, or the first power supply, the second power supply and the second switch are disconnected.

[0041] The present invention generates an indication signal or disconnects a corresponding module according to the running time, thereby reducing the power consumption of the beauty instrument and improving the user experience and satisfaction while ensuring the beauty effect.

[0042] In a fourth aspect, the present invention provides a control module of a functional multiplexing beauty instrument, the module comprising:

[0043] An information acquisition unit, used to acquire selected function mode and / or gear information after detecting a power-on signal;

[0044] A function multiplexing unit, used to conduct the rectangular pulse signal generation module, the rectangular pulse signal shaping module and the first function control module of the beauty instrument according to the function mode and / or gear information to perform the import function, or conduct the rectangular pulse signal generation module, the rectangular pulse signal shaping module and the second function control module to perform the microcurrent function;

[0045] An operation control unit is used to obtain the operation time of the import function or the microcurrent function, and disconnect the rectangular pulse signal generation module, the rectangular pulse signal shaping module and the first function control module according to the operation time, or disconnect the rectangular pulse signal generation module, the rectangular pulse signal shaping module and the second function control module.

[0046] In a fifth aspect, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the control method of a functional multiplexing beauty instrument of the first aspect or any corresponding embodiment thereof by executing the computer instructions.

[0047] In a sixth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the control method for a functionally multiplexed beauty instrument according to the first aspect or any corresponding embodiment thereof.

[0048] In a seventh aspect, the present invention provides a computer program product, comprising computer instructions for causing a computer to execute the control method of a functional multiplexing beauty instrument according to the first aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 is a circuit structure schematic diagram of a pulse signal output circuit with function multiplexing according to an embodiment of the present invention;

[0051] Figure 2 2 is a schematic diagram of the circuit structure of a rectangular pulse generating module of a pulse signal output circuit with functional multiplexing according to an embodiment of the present invention;

[0052] Figure 3 2 is a schematic diagram of the circuit structure of a signal amplifying unit of a pulse signal output circuit with functional multiplexing according to an embodiment of the present invention;

[0053] Figure 4 is a structural block diagram of a functionally multiplexed beauty instrument according to an embodiment of the present invention;

[0054] Figure 5 is a flow chart of a control method of a functional multiplexing beauty instrument according to an embodiment of the present invention;

[0055] Figure 6 is a schematic diagram of a specific flow chart of a control method of a functionally multiplexed beauty instrument according to an embodiment of the present invention;

[0056] Figure 7 is a structural block diagram of a control module of a functional multiplexing beauty instrument according to an embodiment of the present invention;

[0057] Figure 8 It is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention.

[0058] Explanation of the reference numerals: 100 - rectangular pulse signal generating module; 200 - rectangular pulse signal shaping module; 300 - first function control module; 400 - second function control module; 401 - charging and discharging voltage dividing unit; 402 - signal amplifying unit; 500 - control module. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0060] The embodiments of the present invention are applicable to the application scenario of using the introduction function or microcurrent function of the beauty instrument to promote the effective absorption of skin care products during skin care. Among them, the microcurrent function (also called EMS function) can simulate the human body's biological current to effectively stimulate the deep cells of the skin, which can make the skin delicate and delay skin aging to make the skin rejuvenated. The introduction function uses electric current to help the charged nutrients penetrate the surface of the skin and penetrate into the dermis. Due to the high resistance of the skin surface, it is difficult for the effective ingredients to reach the deep layer of the skin directly by simply applying skin care products, and ion introduction technology can help these ingredients penetrate better through weak current. At present, the EMS signal generated by the EMS function in the industry is an AC pulse, but the required EMS signal is generally generated by a transformer step-up, with a frequency of up to 20KHz. The operating frequency is relatively high and cannot meet the frequency requirements for the best beauty effect. The introduction function generally uses a working waveform in the form of DC or DC pulses. When used for a long time, electrochemical corrosion is prone to occur. The causes include:

[0061] (1) Potential difference: In an electrolyte solution, there is a potential difference between the positive electrode (anode) and the negative electrode (cathode). Because the positive electrode is at a high potential, it is more likely to undergo oxidation reactions, that is, metal atoms lose electrons and become ions that enter the solution, causing corrosion.

[0062] (2) Oxidation reaction: The metal positive electrode will be oxidized in the electrolyte solution, and the metal atoms (M) lose electrons and become metal ions (M^n+) entering the solution, that is, M-ne-→M^n+. This process is called anodic oxidation and is the main cause of corrosion.

[0063] (3) Electrolyte environment: Beauty serum acts as an electrolyte in an electric field, and the properties of the electrolyte solution (such as acidity, alkalinity, chloride ion concentration, etc.) will also affect the corrosion rate of the metal. For example, an acidic environment will accelerate the corrosion of the metal, and some electrolytes (such as chlorides) can also promote corrosion reactions.

[0064] In summary, the EMS function of current beauty devices cannot generate EMS signals of optimal frequency, the introduction function is prone to electrochemical corrosion, and the EMS function and the introduction function are usually designed as independent generation modules, which results in high cost of beauty devices and failure to achieve optimal beauty effects.

[0065] According to an embodiment of the present invention, a pulse signal output circuit with multiplexing function is provided. It should be noted that, as used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0066] In this embodiment, a pulse signal output circuit with multiplexing functions is provided. Figure 1 is a schematic diagram of the circuit structure of a pulse signal output circuit with function multiplexing according to an embodiment of the present invention, such as Figure 1 As shown, the pulse signal output circuit includes:

[0067] A rectangular pulse signal generating module 100, used to generate a rectangular pulse signal of a preset frequency;

[0068] A rectangular pulse signal shaping module 200, connected to the rectangular pulse signal generating module 100, for converting the rectangular pulse signal into a positive and negative symmetrical rectangular pulse signal of the preset frequency;

[0069] The first function control module 300 is connected to the rectangular pulse signal shaping module 200 and is used to output a positive and negative symmetrical rectangular pulse signal to the first metal electrode;

[0070] The second function control module 400 is connected to the rectangular pulse signal shaping module 200, and is used to convert the positive and negative symmetrical rectangular pulse signal into a sinusoidal pulse signal of a preset frequency, and output the sinusoidal pulse signal to the second metal electrode;

[0071] The control module 500 is connected to the rectangular pulse signal generating module 100, the first function control module 300 and the second function control module 400, and is used to turn on the rectangular pulse signal generating module 100, the rectangular pulse signal shaping module 200 and the first function control module 300 according to the selected function mode and / or gear information to perform the import function, or turn on the rectangular pulse signal generating module 100, the rectangular pulse signal shaping module 200 and the second function control module 400 to perform the microcurrent function.

[0072] Specifically, in the embodiment of the present invention, Figure 2 As shown, the rectangular pulse signal generating module 100 includes: a first power supply DC1; a timer U1, the power supply terminal V+ of U1 is connected to the positive electrode + of the first power supply DC1, and the ground terminal GND of U1 is connected to the ground point and the negative electrode - of the first power supply DC1; a first resistor R2, the first end of R2 is connected to the reset terminal RS of the timer U1, and the second end of R2 is connected to the discharge terminal DIS of the timer U1; a second resistor R4, the first end of R4 is connected to the second end of the first resistor R2, and the second end of R4 is connected to the threshold terminal THR and the trigger terminal TR of the timer U1; a first capacitor C4, the first end of C4 is connected to the second end of the second resistor R4, and the second end is connected to the ground point. By deploying a pulse generating module, the present invention can generate a pulse signal of the optimal frequency required for the microcurrent function by adjusting the parameters of the circuit components, optimize the stimulation to the skin, and thus improve the microcurrent beauty effect.

[0073] In some optional implementations, the timer U1 of the embodiment of the present invention is a 555 timer, and U1, R2, R4, C4 and DC1 together constitute a multivibrator based on the 555 timer. The corresponding resistance value of the second resistor R4 is much higher than the resistance value of the first resistor R2, and it is recommended to be more than ten times higher than the corresponding resistance value of the first resistor R2, but not higher than 1MΩ, so as to ensure that a rectangular pulse signal with a high level and a low level accounting for nearly 50% is formed at the output terminal 0 of the 555 timer, such as Figure 3As shown, the low level is about 0V, thereby ensuring the output of a rectangular pulse signal with the best frequency, improving the beauty effect of the microcurrent function of the beauty instrument. At the same time, in order to avoid interference, the capacitance of C4 should not be too small. According to experience, it should be greater than 10pf, preferably more than 100pf. Taking R2 as 10KΩ, R4 as 100KΩ, and C4 as 4700pf as an example, the high level period T1, low level period T2, total period T and corresponding frequency f of the rectangular pulse signal are shown below, which are only for example and are not limited to this:

[0074] T1=(R2+R4)*C4*ln2=358us

[0075] T2=R4*C4*ln2=326us

[0076] T=(R2+2R4)*C4*ln2=684us

[0077] f=1 / T=1 / ((R2+2R4)*C4*ln2)=1.46KHz

[0078] In some optional embodiments, such as Figure 2 As shown, the rectangular pulse signal shaping module 200 includes: a second capacitor C2, the first end of C2 is connected to the output terminal 0 of the timer U1, and can shape the low-level rectangular pulse of about 0V formed at the output terminal 0 of the 555 timer into a positive and negative symmetrical rectangular pulse signal, but in the embodiment of the present invention, the positive and negative symmetry is not limited to complete symmetry. In order to control the import function, the first function control module 300 is set to a first switch K1, the first end of K1 is connected to the second end of the second capacitor C2, and the second end of K1 is connected to the metal electrode corresponding to the import function. If K1 is turned on, the positive and negative symmetrical rectangular pulse signal can be output to the metal electrode corresponding to the import function. The embodiment of the present invention can solve the electrochemical corrosion problem caused by the import function in the form of direct current or direct current pulse by using positive and negative symmetrical rectangular pulse signals to perform the import function, and the efficiency is higher.

[0079] In some optional embodiments, such as Figure 2As shown, the second function control module 400 includes: a charge and discharge voltage divider unit 401, connected to the second end of the second capacitor, for converting the positive and negative symmetrical rectangular pulse signal into a quasi-sinusoidal pulse signal; a signal amplification unit 402, connected to the charge and discharge voltage divider unit 401, for amplifying and shaping the amplitude of the quasi-sinusoidal pulse signal to obtain a sinusoidal pulse signal. It can be seen that regardless of whether K1 of the first function control module 300 is turned on or not, the positive and negative symmetrical rectangular pulse signals obtained after passing through C2 can enter the second function control module 400, because the function multiplexing can be realized in sequence based on the same signal in the same circuit, and on the basis of realizing the import function based on the positive and negative symmetrical rectangular pulse signal, the positive and negative symmetrical rectangular pulse signal is converted into a quasi-sinusoidal pulse signal, realizing the function multiplexing of the same pulse signal, and reducing the design cost of the beauty instrument.

[0080] In some optional embodiments, such as Figure 2 As shown, the charge and discharge voltage dividing unit 401 includes: a third resistor R5, a first end of R5 is connected to the second end of the second capacitor C2; a fourth resistor R1, a first end of R1 is connected to the second end of the third resistor R5, and the second end is connected to the enable control end MCU_CTRL of the control module 500; a fifth resistor R6, a first end of R6 is connected to the second end of the third resistor R5, and the second end of R6 is connected to the ground point; a third capacitor C5, a first end of C5 is connected to the second end of the third resistor R5, and the second end of C5 is connected to the ground point. The signal amplification unit includes: a second power supply DC2; a fourth capacitor C6, a first end of C6 is connected to a second end of a third resistor R5; an operational amplifier U2, a positive input end of U2 is connected to a second end of the fourth capacitor C6, a positive power supply end of U2 is connected to a positive electrode of the second power supply DC2, and a negative power supply end of U2 is connected to a ground point; a sixth resistor R8, a first end of R8 is connected to a positive electrode of the second power supply DC2, and a second end of R8 is connected to a positive input end of the operational amplifier U2; a seventh resistor R7, a first end of R7 is connected to a second end of the sixth resistor R8, and a second end of R7 is connected to a negative electrode of the second power supply DC2 and a ground point; an eighth resistor R9, a first end of R9 is connected to a negative input end of the operational amplifier U2; The first end of R9 is connected to the output terminal of the operational amplifier U2; the ninth resistor R10, the first end of R10 is connected to the negative input terminal of the operational amplifier U2; the fifth capacitor C7, the first end of C7 is connected to the second end of the eighth resistor R9, and the second end of C7 is connected to the grounding point; the tenth resistor R11, the first end of R11 is connected to the output terminal of the operational amplifier U2; the sixth capacitor C9, the first end of C9 is connected to the second end of the tenth resistor R11, and the second end of C9 is connected to the grounding point; the seventh capacitor C8, the first end of C8 is connected to the output terminal of the operational amplifier U2; the second switch K2, the first end of K2 is connected to the second end of the seventh capacitor C8, and the second end is connected to the metal electrode corresponding to the EMS function.

[0081] In the embodiment of the present invention, R5, C5, R6 and the optional resistor R1 form an RC charge-discharge voltage divider circuit, and the positive and negative symmetrical rectangular pulse signals become quasi-sinusoidal pulse signals through the RC charge-discharge circuit. The optional resistor R1 is connected to the enable control terminal of the control module MCU, and is controlled by the output enable control signal MCU_CTRL. When it is not enabled, the signal is suspended; when it is enabled, MCU_CTRL is set low, and forms a voltage divider circuit with R5 and R6 to change the voltage amplitude at C5. Due to the AC characteristics of C6, the change in the voltage amplitude at C5 will also cause the voltage on the right side of C6 to change, that is, the input voltage of U2 changes accordingly, that is, the AC pulse signal (quasi-sinusoidal pulse signal) generated here eventually enters the positive input terminal A+ of the operational amplifier U2. Further, if DC2 is turned on, R7 and R8 divide the voltage of DC2, and the voltage V1 flowing to the positive input terminal A+ of the operational amplifier U2 is:

[0082] V1=R7 / (R7+R8)*DC2

[0083] In some optional embodiments, such as Figure 4 As shown, the quasi-sinusoidal pulse signal of C6 and the DC voltage divider V1 are superimposed on the power supply and enter the positive input terminal A+ of the operational amplifier U2. The output terminals R9, R10, and C7 form an RC impedance network. The voltage of C9 (R11 is a current limiting resistor, and its value generally does not exceed 1Ω, and the typical value is 0.1Ω) cannot change suddenly. Therefore, when the AC part entering the input terminal A+ of U2 exceeds the cycle average value, the output OUTA of U2 cannot be high immediately. The main charging circuit is R9, R10, and C7. Similarly, when the AC part entering C6 changes from being higher than the average value to being lower than the average value, the output OUTA of U2 cannot be low immediately. The pulse signal shape of the lowest low voltage 0V output by U2 output OUTA is converted into a positive and negative symmetrical quasi-sinusoidal pulse signal through C8 output OUT, and its frequency is the same as the output frequency of the 555 timer. This output pulse signal shape is the required EMS pulse signal shape, as shown Figure 4 shown.

[0084] In some optional implementations, the control terminals corresponding to the first power supply DC1, the second power supply DC2, the first switch K1 and the second switch K2 are respectively connected to the control terminal of the control module 500, which is not marked in the circuit diagram. The control module 500 realizes the import function or EMS function by controlling the conduction or disconnection of the first power supply DC1, the second power supply DC2, the first switch K1 and the second switch K2. Figure 2As shown, when DC1 and K1 are turned on, the OUT_import port outputs positive and negative symmetrical rectangular pulse signals to the metal electrode corresponding to the import function of the beauty instrument, and the import function is executed after the electrode touches the human skin; when DC1, DC2 and K2 are turned on, OUT_EMS outputs a sinusoidal pulse signal to the metal electrode corresponding to the EMS function of the beauty instrument, and the EMS function is executed after the electrode touches the human skin, wherein the metal electrode corresponding to the import function and the metal electrode corresponding to the EMS function may be the same metal electrode or may be different metal electrodes.

[0085] The functional multiplexing pulse signal output circuit provided by the present invention turns on the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first functional control module according to the functional mode and / or gear information through the control module, the rectangular pulse signal generating module generates a rectangular pulse signal of a preset frequency, the rectangular pulse signal shaping module converts the rectangular pulse signal into a positive and negative symmetrical rectangular pulse signal, the first functional control module outputs the positive and negative symmetrical rectangular pulse signal to the corresponding metal electrode to perform the import function, or turns on the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second functional control module, the rectangular pulse signal generating module generates a rectangular pulse signal of a preset frequency, which is converted into a positive and negative symmetrical rectangular pulse signal by the rectangular pulse signal shaping module, the second functional control module converts the positive and negative symmetrical rectangular pulse signal into a sinusoidal pulse signal, and outputs it to the corresponding metal electrode to perform the microcurrent function. The present invention controls the conduction of different modules in the same circuit, can output different pulse signals at different nodes based on the same circuit, execute corresponding functions, realize functional multiplexing of the same circuit, simplify the internal circuit composition, and reduce the cost of the beauty instrument. At the same time, it can generate corresponding pulse signals according to functional requirements, ensure the efficient operation of each function, improve the beauty effect of the beauty instrument, and enhance the user experience.

[0086] The embodiment of the present invention further provides a beauty instrument, Figure 4 is a structural block diagram of a functionally multiplexed beauty instrument according to an embodiment of the present invention. Figure 4 As shown, the beauty instrument includes:

[0087] External buttons, used to select function mode and / or gear information; Figure 1 The function-multiplexed pulse signal output circuit shown is connected to an external button for outputting a pulse signal; the metal electrode is connected to the function-multiplexed pulse signal output circuit for applying the pulse signal to the user's skin.

[0088] Specifically, in the embodiment of the present invention, the beauty instrument is designed with external buttons, including a power button, a function selection button, and a gear adjustment button, wherein the function selection button can be operated to switch between the import function and the EMS function, which is only an example and not limited to this. In addition, metal electrodes corresponding to different functions are also deployed. After the beauty instrument works with the selected function, the user contacts the metal electrode with the skin, so that the output pulse signal can be output to the corresponding metal electrode, and then act on the skin to promote the absorption of skin care products.

[0089] In some optional implementations, the beauty instrument of the embodiment of the present invention is also equipped with a buzzer and an indicator light, which are respectively connected to the control module, and are used to emit a buzzer indication signal or a light indication signal to remind the user whether the function is turned on, whether a face-changing operation is required, etc., which is not marked in the figure.

[0090] The present invention controls the conduction of different modules in the same circuit of the beauty instrument, and can output different pulse signals at different nodes based on the same circuit to execute corresponding functions, thereby realizing functional reuse of the same circuit, streamlining the internal circuit composition, and reducing the cost of the beauty instrument. At the same time, it can generate corresponding pulse signals according to functional requirements, ensure the efficient operation of each function, improve the beauty effect of the beauty instrument, and enhance the user experience.

[0091] An embodiment of the present invention also provides an embodiment of a control method for a beauty instrument with functional reuse. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0092] In this embodiment, a control method for a functionally multiplexed beauty instrument is provided, which can be used in a control module of a pulse signal output circuit in the above-mentioned beauty instrument. Figure 5 is a flow chart of a control method of a functional multiplexing beauty instrument according to an embodiment of the present invention. Figure 5 As shown, the process includes the following steps:

[0093] Step S501, after detecting a power-on signal, obtaining the selected function mode and / or gear information.

[0094] Specifically, in the embodiment of the present invention, external buttons are designed on the body of the beauty instrument, including a power button, a function selection button and a gear adjustment button, wherein the function selection button can be operated to switch between the import function and the EMS function, which is only taken as an example and is not limited thereto. When the user presses the power button and the corresponding function selection button and / or gear adjustment button, a power-on signal is generated, and the function mode and gear information are read.

[0095] Step S502, according to the function mode and / or gear information, the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module of the beauty instrument are turned on to execute the import function, or the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module are turned on to execute the microcurrent function.

[0096] Specifically, in the embodiment of the present invention, Figure 6 As shown, it is determined whether the function selected by the user is the import function or the EMS function. If the import function is selected, the first power supply DC1 of the rectangular pulse signal generating module in the internal circuit of the beauty instrument is turned on, and the running time is recorded at this time. If the running time exceeds the first time threshold t1, U1 works stably, and the first switch K1 of the first function control module in the internal circuit is turned on. At this time, it is equivalent to turning on the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module, and outputting positive and negative symmetrical rectangular pulse signals to the metal electrodes corresponding to the external import function of the beauty instrument. After the electrodes touch the human skin, the import function is executed, where t1 is the stabilization time of the 555 timer and the peripheral circuit, which is generally set to the ms level.

[0097] In some optional embodiments, such as Figure 6 As shown, if the EMS function is selected, the gear information selected by the user is obtained. If the gear is low, the enable control signal MCU_CTRL of the enable control terminal is set to a high impedance state, otherwise it is set to 0. At the same time, the first power supply DC1 of the rectangular pulse signal generation module and the second power supply DC2 of the second function control module in the internal circuit of the beauty instrument are turned on, and the first switch K1 is controlled to be in a disconnected state. At this time, the running time is recorded. If the running time exceeds the second time threshold t2, the second switch K2 of the second function control module in the internal circuit is turned on. At this time, it is equivalent to turning on the rectangular pulse signal generation module, the rectangular pulse signal shaping module and the second function control module, and outputting a sinusoidal pulse signal of a specific frequency to the metal electrode corresponding to the EMS function outside the beauty instrument. After the electrode contacts the human skin, the EMS function is executed, where t2 is the maximum stabilization time of U1, U2 and peripheral circuits, which is generally set to ms.

[0098] Step S503, obtain the running time of the import function or the microcurrent function, and disconnect the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module according to the running time, or disconnect the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module.

[0099] Specifically, in the embodiment of the present invention, Figure 6As shown, after the import function is executed, the running time continues to be recorded. If the running time exceeds the third time threshold t3, a buzzer indication signal or a light indication signal is generated, and the user is prompted to change the face through the buzzer or indicator light. At this time, the running time is recorded again. If the running time exceeds t3 again, DC1 and K1 are controlled to be disconnected (the control of DC1 can also be determined according to actual needs), and the beauty instrument ends its work. t3 is the unilateral duration of the import function, which is set according to the beauty effect and generally does not exceed 3 minutes, that is, the working time generally does not exceed 6 minutes, but is not limited to this.

[0100] In some optional embodiments, such as Figure 6 As shown, after executing the EMS function, the running time continues to be recorded. If the running time exceeds the fourth time threshold t4, a buzzer indication signal or a light indication signal is generated, and the user is prompted to change the face through a buzzer or an indicator light. At this time, the running time is recorded again. If the running time exceeds t4 again, DC1, DC2 and K2 are controlled to be disconnected (the control of DC1 and DC2 can also be determined according to actual needs), and K1 and the enabling control terminal are also disconnected, and the beauty instrument ends its work. t4 is the unilateral duration of the EMS function, which is set according to the beauty effect and generally does not exceed 3 minutes, that is, the working time generally does not exceed 6 minutes, but is not limited to this.

[0101] The control method of the functionally reused beauty instrument provided by the present invention can provide users with different beauty functions on the basis of the same circuit, realize functional reuse of the circuit, and reduce the cost of the beauty instrument while ensuring the beauty effect, by controlling the conduction of different modules according to the functional mode and / or gear information selected by the user after power-on, executing the introduction function or the microcurrent function, and controlling the disconnection of the corresponding modules according to the running time corresponding to each function.

[0102] In this embodiment, a control module of a functional multiplexing beauty instrument is also provided, which is used to implement the above Figure 5 The illustrated embodiments and preferred implementations have been described and will not be repeated. As used below, the term "unit" may be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and contemplated.

[0103] This embodiment provides a control module of a functional multiplexing beauty instrument, such as Figure 7 As shown, including:

[0104] The information acquisition unit 701 is used to acquire the selected function mode and / or gear information after detecting the power-on signal.

[0105] The function multiplexing unit 702 is used to turn on the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module of the beauty instrument according to the function mode and / or gear information to perform the import function, or turn on the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module to perform the microcurrent function.

[0106] The operation control unit 703 is used to obtain the operation time of the import function or the microcurrent function, and disconnect the rectangular pulse signal generation module, the rectangular pulse signal shaping module and the first function control module according to the operation time, or disconnect the rectangular pulse signal generation module, the rectangular pulse signal shaping module and the second function control module.

[0107] In some optional implementations, the function multiplexing unit 702 includes:

[0108] The first function control subunit is used to turn on the first power supply of the rectangular pulse signal generating module if the function mode is the import function; obtain the first operating time, and turn on the first switch of the first function control module if the first operating time exceeds the first time threshold.

[0109] The second function control subunit is used to obtain the gear information if the function mode is the microcurrent function; if the gear information is the first gear, the enable control end of the main control mode is set to the first potential, and if the gear information is the second gear, the enable control end is set to the second potential; turn on the first power supply of the rectangular pulse signal generating module and the second power supply of the first power supply of the rectangular pulse signal generating module; obtain the second operating time, and if the second operating time exceeds the second time threshold, turn on the second switch of the second function control module.

[0110] In some optional implementations, the operation control unit 703 includes:

[0111] The first operation control subunit is used to obtain a third operation time, and if the third operation time exceeds a third time threshold or a fourth time threshold, generate a buzzer indication signal or a light indication signal.

[0112] The second operation control subunit is used to obtain a fourth operation time, and if the fourth operation time exceeds the third time threshold or the fourth time threshold, disconnect the first power supply and the first switch, or disconnect the first power supply, the second power supply and the second switch.

[0113] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0114] The control module in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0115] The embodiment of the present invention also provides a computer device having the above Figure 7 Control module shown.

[0116] See also Figure 8 , Figure 8 is a schematic diagram of the structure of a computer device provided by an optional embodiment of the present invention, such as Figure 8 As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the computer device, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as, a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 8 A processor 10 is taken as an example.

[0117] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0118] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0119] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0120] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0121] The computer device also includes an input device 30 and an output device 40. The processor 10, the memory 20, the input device 30 and the output device 40 may be connected via a bus or other means. Figure 8 The example of connecting through bus is taken in the following.

[0122] The input device 30 can receive input digital or character information, and generate key signal input related to the user settings and function control of the computer device, such as a touch screen, a keypad, a mouse, a track pad, a touch pad, an indicator bar, one or more mouse buttons, a trackball, a joystick, etc. The output device 40 may include a display device, an auxiliary lighting device (e.g., an LED) and a tactile feedback device (e.g., a vibrating electrode), etc. The above-mentioned display device includes but is not limited to a liquid crystal display, a light emitting diode, a display and a plasma display. In some optional embodiments, the display device can be a touch screen.

[0123] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0124] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0125] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A pulse signal output circuit with multiplexing function, characterized in that: include: A rectangular pulse signal generating module, used for generating a rectangular pulse signal of a preset frequency; A rectangular pulse signal shaping module, connected to the rectangular pulse signal generating module, for converting the rectangular pulse signal into a positive and negative symmetrical rectangular pulse signal of the preset frequency; A first function control module, connected to the rectangular pulse signal shaping module, used for outputting the positive and negative symmetrical rectangular pulse signal to the first metal electrode; A second function control module is connected to the rectangular pulse signal shaping module, and is used to convert the positive and negative symmetrical rectangular pulse signal into a sinusoidal pulse signal of the preset frequency, and output the sinusoidal pulse signal to the second metal electrode; The control module is connected to the rectangular pulse signal generating module, the first function control module and the second function control module, and is used to turn on the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module according to the selected function mode and / or gear information to perform the import function, or turn on the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module to perform the microcurrent function.

2. The pulse signal output circuit according to claim 1, characterized in that: The rectangular pulse signal generating module comprises: a first power supply; A timer, wherein a power supply end is connected to the positive electrode of the first power supply, and a grounding end is connected to a grounding point and a negative electrode of the first power supply; a first resistor, a first end of which is connected to the reset end of the timer, and a second end of which is connected to the discharge end of the timer; a second resistor, a first end of which is connected to the second end of the first resistor, and a second end of which is connected to the threshold end and the trigger end of the timer; A first capacitor has a first end connected to the second end of the second resistor, and a second end connected to the ground point.

3. The pulse signal output circuit according to claim 2, characterized in that: The resistance value corresponding to the second resistor is at least ten times higher than the resistance value corresponding to the first resistor.

4. The pulse signal output circuit according to claim 2, characterized in that: The rectangular pulse signal shaping module comprises: A second capacitor has a first end connected to the output end of the timer.

5. The pulse signal output circuit according to claim 4, characterized in that: The first function control module includes: A first switch has a first end connected to the second end of the second capacitor and a second end connected to the first metal electrode.

6. The pulse signal output circuit according to claim 4, characterized in that: The second function control module includes: a charge-discharge voltage-dividing unit, connected to the second end of the second capacitor, and used for converting the positive and negative symmetrical rectangular pulse signal into a quasi-sinusoidal pulse signal; The signal amplifying unit is connected to the charge-discharge voltage dividing unit and is used to amplify and shape the amplitude of the quasi-sinusoidal pulse signal to obtain the sinusoidal pulse signal.

7. The pulse signal output circuit according to claim 6, characterized in that: The charge and discharge voltage dividing unit comprises: a third resistor, a first end of which is connected to the second end of the second capacitor; a fourth resistor, a first end of which is connected to the second end of the third resistor, and a second end of which is connected to the enable control end of the control module; a fifth resistor, a first end of which is connected to the second end of the third resistor, and a second end of which is connected to the ground point; The third capacitor has a first end connected to the second end of the third resistor and a second end connected to the ground point.

8. The pulse signal output circuit according to claim 7, characterized in that: The signal amplification unit comprises: A second power supply; a fourth capacitor, a first end of which is connected to the second end of the third resistor; an operational amplifier, wherein a positive input terminal is connected to the second end of the fourth capacitor, a positive power supply terminal is connected to the positive electrode of the second power supply, and a negative power supply terminal is connected to the ground point; a sixth resistor, a first end of which is connected to the positive electrode of the second power supply, and a second end of which is connected to the positive input terminal of the operational amplifier; a seventh resistor, a first end of which is connected to the second end of the sixth resistor, and a second end of which is connected to the negative electrode of the second power supply and the grounding point; an eighth resistor, a first end of which is connected to the negative input terminal of the operational amplifier, and a second end of which is connected to the output terminal of the operational amplifier; a ninth resistor, a first end of which is connected to the negative input terminal of the operational amplifier; a fifth capacitor, a first end of which is connected to the second end of the eighth resistor, and a second end of which is connected to the ground point; a tenth resistor, a first end of which is connected to the output end of the operational amplifier; a sixth capacitor, a first end of which is connected to the second end of the tenth resistor, and a second end of which is connected to the ground point; a seventh capacitor, a first end of which is connected to the output end of the operational amplifier; The second switch has a first end connected to the second end of the seventh capacitor and a second end connected to the second metal electrode.

9. The pulse signal output circuit according to claim 8, characterized in that: The control ends corresponding to the first power supply, the second power supply, the first switch and the second switch are respectively connected to the control end of the control module.

10. A beauty instrument with multiple functions, characterized in that: include: External buttons, used to select function mode and / or gear information; The function-multiplexed pulse signal output circuit according to any one of claims 1 to 9, connected to the external button, for outputting a pulse signal; The metal electrode is connected to the functional multiplexing pulse signal output circuit and is used to apply the pulse signal to the user's skin.

11. The beauty instrument according to claim 10, characterized in that: Also includes: The buzzer and the indicator light are respectively connected to the control module of the function-multiplexing pulse signal output circuit and are used to send out a buzzer indication signal or a light indication signal.

12. A control method for a functionally multiplexed beauty instrument, applied to a control module of a pulse signal output circuit in a beauty instrument according to any one of claims 1 to 9, characterized in that: The method comprises: After detecting the power-on signal, obtaining the selected function mode and / or gear information; According to the functional mode and / or the gear information, the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module of the beauty instrument are turned on to perform the import function, or the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module are turned on to perform the microcurrent function; Obtain the running time of the import function or the microcurrent function, and disconnect the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module according to the running time, or disconnect the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module.

13. The method according to claim 12, characterized in that According to the functional mode and / or the gear information, the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module of the beauty instrument are turned on to perform the import function, or the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module are turned on to perform the microcurrent function, including: If the functional mode is the import function, turning on the first power supply of the rectangular pulse signal generating module; Acquire a first running time, and if the first running time exceeds a first time threshold, turn on a first switch of the first function control module; or, if the functional mode is the microcurrent function, obtaining gear information; If the gear information is the first gear, the enable control terminal of the master control mode is set to the first potential; if the gear information is the second gear, the enable control terminal is set to the second potential; Turn on the first power supply of the rectangular pulse signal generating module and the second power supply of the first power supply of the rectangular pulse signal generating module; A second operating time is obtained, and if the second operating time exceeds a second time threshold, a second switch of the second function control module is turned on.

14. The method according to claim 13, characterized in that Obtaining the running time of the import function or the microcurrent function, and disconnecting the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module according to the running time, or disconnecting the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module, including: Acquiring a third running time, and generating a buzzer indication signal or a light indication signal if the third running time exceeds a third time threshold or a fourth time threshold; A fourth operating time is obtained. If the fourth operating time exceeds the third time threshold or the fourth time threshold, the first power supply and the first switch are disconnected, or the first power supply, the second power supply and the second switch are disconnected.

15. A control module of a functional multiplexing beauty instrument, characterized in that: The modules include: An information acquisition unit, used to acquire selected function mode and / or gear information after detecting a power-on signal; A function multiplexing unit, used to conduct the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module of the beauty instrument according to the function mode and / or the gear information to perform the import function, or conduct the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module to perform the microcurrent function; An operation control unit is used to obtain the operation time of the import function or the microcurrent function, and disconnect the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the first function control module according to the operation time, or disconnect the rectangular pulse signal generating module, the rectangular pulse signal shaping module and the second function control module.

16. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the control method of the functional multiplexing beauty instrument according to any one of claims 12 to 14 by executing the computer instructions.

17. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the control method of the functional multiplexing beauty instrument according to any one of claims 12 to 14.

18. A computer program product, characterized in that The method comprises computer instructions for causing a computer to execute the control method of the functional multiplexing beauty instrument according to any one of claims 12 to 14.

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