CN116392718A - Temperature alarm method of radio frequency beauty instrument and radio frequency beauty instrument - Google Patents
Temperature alarm method of radio frequency beauty instrument and radio frequency beauty instrument Download PDFInfo
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- 230000003796 beauty Effects 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005070 sampling Methods 0.000 claims abstract description 87
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- 238000004873 anchoring Methods 0.000 claims abstract description 25
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- 210000003491 skin Anatomy 0.000 description 20
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- 206010051458 Myometritis Diseases 0.000 description 2
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- 230000004089 microcirculation Effects 0.000 description 1
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- 239000000523 sample Substances 0.000 description 1
- 210000002374 sebum Anatomy 0.000 description 1
- 230000008591 skin barrier function Effects 0.000 description 1
- 210000000434 stratum corneum Anatomy 0.000 description 1
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Abstract
The application relates to the technical field of beauty treatment instruments and discloses a temperature warning method of a radio frequency beauty treatment instrument and the radio frequency beauty treatment instrument. The method comprises the following steps: acquiring main loop current of the beauty instrument when the beauty instrument works under a non-constant voltage condition at every sampling interval; determining a single integration time length of each sampling interval, and performing charge integration according to the main loop current and the single integration time length acquired in the corresponding sampling interval to obtain an accumulated charge quantity; and comparing the accumulated charge quantity with a preset charge quantity anchoring value, and outputting temperature warning information of the beauty instrument if the accumulated charge quantity is larger than or equal to the charge quantity anchoring value. Therefore, the problem that the experience sense is poor because the temperature detection accuracy is low and the temperature detection cannot be dynamically adjusted due to the skin state difference in the conventional radio frequency beauty instrument is effectively solved.
Description
Technical Field
The application relates to the technical field of beauty instruments, in particular to a temperature alarm method of a radio frequency beauty instrument and the radio frequency beauty instrument.
Background
When the existing radio frequency beauty instrument is used on the face, a temperature probe is used for detecting the temperature of the skin epidermis of the face, and when the temperature reaches a certain value, sound or vibration prompt is carried out; or at a fixed operating time, such as using a 10 second post alarm prompt.
However, the existing radio frequency beauty instrument can only detect the temperature of epidermis, but cannot detect the temperature of dermis, and the accuracy of using the dermis temperature to represent the face temperature is poor, so that the beauty experience is poor. And when the instrument is used on the face, different people, different parts of the same person or different time periods (such as when there is myometritis and no myometritis) of the same position are different in temperature tolerance, and the same temperature threshold or the same action time early warning can cause that the temperature warning is too early and has no effect or too late to scald the skin.
In a word, the existing radio frequency beauty instrument has low temperature detection accuracy, and the temperature detection cannot be dynamically adjusted due to the skin state difference, so that the experience feeling of people is poor.
Disclosure of Invention
In view of this, the embodiment of the application provides a temperature alarm method of a radio frequency beauty treatment instrument and the radio frequency beauty treatment instrument, which can effectively solve the problems that the existing radio frequency beauty treatment instrument has poor experience sense due to low temperature detection accuracy and the temperature detection cannot be dynamically adjusted due to the skin state difference.
In a first aspect, an embodiment of the present application provides a temperature alarm method of a radio frequency cosmetic device, where the method includes:
acquiring main loop current of the beauty instrument when the beauty instrument works under a non-constant voltage condition at every sampling interval;
determining a single integration time length of each sampling interval, and performing charge integration according to the main loop current and the single integration time length acquired in the corresponding sampling interval to obtain an accumulated charge quantity;
and comparing the accumulated charge quantity with a preset charge quantity anchoring value, and outputting temperature warning information of the beauty instrument if the accumulated charge quantity is larger than or equal to the charge quantity anchoring value.
In some embodiments, a power regulator is connected in series in a main loop of the beauty instrument, and the power regulator is used for regulating the working state of the main loop; the determining a single integration duration for each sampling interval includes:
determining a reference voltage according to a minimum operating voltage drop value of the power regulator;
obtaining a voltage drop value of the power regulator obtained by sampling in a corresponding sampling interval;
and obtaining a single integration duration of the corresponding sampling interval according to the reference voltage and the voltage drop value.
In some embodiments, the integrating the charge according to the main loop current and the single integration duration acquired in the corresponding sampling interval, and obtaining the accumulated charge amount includes:
performing charge integration on the main loop current and the corresponding single integration time length at the same sampling interval to obtain a single integration charge quantity;
and summing the single integrated charge amounts to obtain the integrated charge amounts.
In some embodiments, the voltage drop value of the power regulator is a voltage drop adjustment value obtained by amplifying the voltage drop initial value of the power regulator by N times, wherein N is greater than or equal to 1.
In some embodiments, the charge total anchor value is a product of a preset duration and a minimum operating current value of the power regulator.
In some embodiments, the single integration period T n The method is calculated by adopting the following formula:
wherein IAD n For the voltage drop value, T, of the power regulator obtained by sampling in the nth sampling interval n And U is the reference voltage, deltat is the sampling interval, and n is more than 0 for the nth single integration time.
In a second aspect, an embodiment of the present application further provides a temperature alarm method of a radio frequency cosmetic apparatus, where a power regulator is connected in series in a main loop of the cosmetic apparatus, and the power regulator is used to regulate a working state of the main loop; the method comprises the following steps:
acquiring a voltage drop value of the power regulator when the beauty instrument works under a non-constant voltage condition every sampling interval;
calculating to obtain a single integral duration T of each sampling interval according to the pressure drop value by adopting the following formula n ：
Wherein Δt is the sampling interval, IAD n Determining a reference voltage according to the minimum working voltage drop value of the power regulator by using U as the voltage drop value of the power regulator, wherein n is more than 0;
summing the single integration time lengths to obtain accumulated integration time lengths;
and if the accumulated integral time length is greater than or equal to the preset duration, outputting temperature warning information of the beauty instrument.
In a third aspect, embodiments of the present application provide a radio frequency cosmetic device, the cosmetic device comprising: the system comprises a main loop, a controller, a signal collector and an alarm;
the signal collector is used for collecting main loop current or voltage signals in the main loop when the beauty instrument works under a non-constant voltage condition and transmitting the signals to the controller;
the controller is used for determining a single integration duration of each sampling interval according to the current or voltage signal, and performing charge integration according to the main loop current and the single integration duration acquired in the corresponding sampling interval to obtain an accumulated charge quantity;
the controller is also used for comparing the accumulated charge quantity with a preset charge quantity anchoring value, and if the accumulated charge quantity is larger than or equal to the charge quantity anchoring value, the controller is used for controlling the alarm to carry out temperature alarm.
In some embodiments, a power regulator is connected in series with the main loop, and the power regulator is used for regulating the working state of the main loop; the signal collector comprises a sampling resistor and an operational amplifier;
the two input ends of the operational amplifier are correspondingly connected with the input end and the output end of the power regulator, the output end of the operational amplifier is connected with the controller and is used for performing multiple amplification on the acquired initial value of the voltage drop of the power regulator, and the amplified voltage drop value is used for combining the internal resistance of the power regulator to obtain the main loop current.
In some embodiments, the power regulator further comprises a driving circuit, wherein the driving circuit is connected with the power regulator, and the controller is used for controlling the on-off time of the power regulator through the driving circuit; and after the power regulator is conducted, the output power of the main loop is regulated by regulating the duty ratio.
The embodiment of the application has the following beneficial effects:
according to the temperature alarm method of the radio frequency beauty instrument, the single integration time length is determined according to the current sampled main loop current and the sampling interval, so that the single integration time length is related to the main loop current; and then, carrying out charge integration according to each single integration time length to obtain the accumulated charge quantity. And comparing the accumulated charge quantity with a preset charge quantity anchoring value to determine whether to output the temperature warning information of the beauty instrument. When the radio frequency beauty instrument is used, different people, different parts of the same person and different time of the same position can realize alarming of fixed charge and different using time according to the current state of the skin, and the problem that the experience sense is poor due to the fact that the conventional radio frequency beauty instrument is low in temperature detection accuracy and temperature detection cannot be dynamically regulated due to the difference of the skin states can be effectively solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a system block diagram of a radio frequency cosmetic instrument according to an embodiment of the present application;
FIG. 2 shows a circuit diagram of a power regulator in a main loop in an embodiment of the present application;
FIG. 3 shows a circuit diagram of an operational amplifier in an embodiment of the present application;
FIG. 4 is a flow chart of a temperature alarm method of the radio frequency cosmetic instrument according to an embodiment of the present application;
fig. 5 shows another flowchart of a temperature alarm method of the radio frequency cosmetic instrument in the embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments.
The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.
In the following, the terms "comprises", "comprising", "having" and their cognate terms may be used in various embodiments of the present application are intended only to refer to a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be interpreted as first excluding the existence of or increasing the likelihood of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of this application belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having a meaning that is identical to the meaning of the context in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in connection with the various embodiments.
Examples
Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.
Aiming at the problems of poor experience caused by low temperature detection accuracy and incapability of dynamic adjustment of temperature detection due to skin state difference and the like in the prior art, the invention discovers that the skin dermis layer has different impedance presentation in different states, and the impedance changes along with the temperature increase (the higher the temperature is, the larger the impedance is). The different impedances of the skin dermis layers cause different current values obtained in the main circuit of the beauty instrument, namely, the larger the skin impedance is, the smaller the current in the main circuit of the beauty instrument is, the smaller the skin impedance is, and the larger the current in the main circuit of the beauty instrument is. For example, when the skin muscle bottom has inflammation, the stratum corneum is thin and the skin barrier is damaged, the skin dermis layer impedance is small, so that the current in the main loop of the beauty instrument is larger, the time required for reaching a certain electric charge amount is less, and the damage to the skin is avoided by warning in advance. The skin has the advantages that when the skin lacks water and sebum is hypersecretion, the impedance of the skin dermis layer is large, so that the current in the main loop of the beauty instrument is smaller, the time required for reaching a certain charge amount is longer, the temperature rise is higher, the skin microcirculation is improved, and better customer experience is provided.
Accordingly, the present invention proposes a radio frequency cosmetic instrument, exemplarily shown in fig. 1, comprising: the system comprises a main loop, a controller, a signal collector and an alarm. Specifically, the controller is connected with the main loop through the signal collector, and meanwhile, the controller is connected with the alarm in a control mode. The signal collector is used for collecting a voltage signal or a current signal of the main loop according to a preset sampling interval and transmitting the voltage signal or the current signal to the controller. The controller is used for determining a single integration duration of each sampling interval according to the current or voltage signal, and performing charge integration according to the main loop current and the single integration duration acquired in the corresponding sampling interval to obtain an accumulated charge quantity; the controller is also used for comparing the accumulated charge quantity with a preset charge quantity anchoring value, and if the accumulated charge quantity is larger than or equal to the charge quantity anchoring value, the controller is used for controlling the alarm to carry out temperature alarm.
For a better understanding of the rf cosmetic device, the following describes each component of the rf cosmetic device in detail.
In one embodiment, as shown in fig. 2, a power regulator is connected in series with the main circuit, and the power regulator is used for regulating the working state of the main circuit. The power regulator can adopt MOS tubes and the like. The main loop also comprises a high-frequency converter, and a loop is formed by the test point TP15, the high-frequency converter, the skin and the MOS tube Q9, so that the skin is heated. The MOS tube is correspondingly provided with three switch gears, namely a first gear, a second gear and a third gear, wherein the duty ratio of the third gear is 100%, the duty ratio of the second gear is 70%, the duty ratio of the first gear is 50%, and different powers are correspondingly realized by adjusting the gears of the power regulator. Naturally, the cosmetic instrument has three gears corresponding to the different powers. The duty ratio of the MOS tube is realized in a PWM mode. Of course, other power regulating devices may be used for the power regulator, which is not limited herein.
The main loop current is obtained by collecting voltage drops at two ends of the power regulator and then calculating according to the fixed internal resistance of the power regulator. In one embodiment, as shown in fig. 3, the signal collector includes a sampling resistor and an operational amplifier, two input ends of the operational amplifier are correspondingly connected to an input end and an output end of the power regulator, and an output end of the operational amplifier is connected to the controller and is used for performing multiple amplification on the collected initial voltage drop value of the power regulator, where the amplified voltage drop value is used for obtaining the main loop current in combination with the internal resistance of the power regulator. The connection mode and the number of the sampling resistors are not limited, and are determined according to actual requirements of the circuit.
Specifically, as shown in fig. 3, the non-inverting input end of the operational amplifier is connected with the source electrode of the MOS tube through a sampling resistor R2, the inverting input end of the operational amplifier is connected with the drain electrode of the MOS tube through a sampling resistor R1, and the output end of the operational amplifier is connected with the controller. And the voltage drop at two ends of the MOS tube is acquired through a sampling resistor R1 and a sampling resistor R2, the voltage drop is input into the operational amplifier to be amplified, then a voltage signal IAD is output, and finally the voltage signal IAD is transmitted to the controller. In other embodiments, if the calculation accuracy of the controller is high enough, the collected voltage drop may be directly transmitted to the controller without an operational amplifier.
For example, if the device actually selected for the MOS transistor is SM4447A, the internal resistance is 16.5mΩ, and there is impedance. The working current range of the main loop is 0.8A-1.6A, and the voltage drop range generated on the MOS tube is 13.2 mV-26.4 mV. The main loop current linearly corresponds to the signal IAD input by the controller. The gain of the operational amplifier is 100, and the corresponding input signal range of the controller is 1.32V-2.64V.
In one embodiment, the beauty instrument further comprises a driving circuit, wherein the driving circuit is connected with the power regulator, and the controller is used for controlling the on-off time of the power regulator through the driving circuit, and the off time is determined according to the duty ratio of the power regulator. As shown in fig. 2, the driving circuit may employ a triode Q5, the controller employs an MCU, the base electrode of the triode is connected to the IO port of the MCU, and the collector electrode of the triode is connected to the drain electrode of the MOS transistor. The MCU outputs a driving signal RF_POWER through the IO port to control the state of the triode Q5 so as to realize the decision of the on or off of the MOS tube Q9, and further, the output POWER of the beauty instrument is regulated by regulating the duty ratio of the MOS tube.
The controller is used for controlling parameters such as the power regulator, the output power and the like in the main loop. For example, the controller may employ a commonly used MCU or the like. The controller is also used for obtaining the current of the main loop according to the input voltage signal IAD, and further integrating the charges in the main loop so as to control the alarm to alarm according to the accumulated charge quantity and the preset charge quantity anchoring value. For example, the alarm may be a conventional buzzer. Namely, when the MCU detects that the accumulated charge quantity reaches a preset charge quantity anchoring value, the MCU outputs alarm information so that the buzzer can realize alarm.
The application also provides a temperature alarm method of the radio frequency beauty instrument so as to realize temperature alarm. The principle of a temperature alarm method of a radio frequency beauty instrument of the present application is first described below:
first aspect: the working voltage of the MOS tube Q9 is not constant, the collected voltage signal IAD is also not constant, the voltage of the power supply VBUS is constant, and when the sampling period is short enough, the current change is considered to be small enough, so that the judgment of the result is not influenced. According to the method, the total charge anchoring value is preset according to experience, then the electric charge in the main loop is integrated to obtain the accumulated electric charge, and finally alarming is carried out according to the accumulated electric charge and the total charge anchoring value. In particular, the charge total anchoring value may be an anchoring point a a The product of the duration S, i.e. assuming the main loop current is constant at a a And when the working time is S, alarming. Then, recording real-time current at a certain sampling interval; the magnitude of the current in the sampling interval can be considered constant when the sampling interval is short enough, the total charge input in the sampling interval: dq=i×dt. And summing the total charges in each sampling interval to obtain the accumulated charge quantity. The present application outputs an alarm when the accumulated charge amount reaches a certain value in real time, instead of being based on a fixed operating time or a fixed skin temperature. And triggering the MCU alarm when the accumulated charge quantity is equal to the charge total quantity anchoring value. The specific formula is as follows:
∫ 0 T idt＝A a *S
wherein i is main loop current, rm is MOS tube internal resistance, gv is gain of the operational amplifier circuit. The left side of the formula is used for calculating the accumulated charge quantity, and the right side of the formula is the charge total quantity anchoring value.
Second aspect: in the application, the integration time length is converted according to the current of the main loop, and the switch is closedFor the single integration period T n The principle of the calculation mode of (a) is as follows:
the main loop current is obtained by sampling according to a preset sampling interval, for example, the main loop current is sampled every 100 ms.
Assuming that the main loop current is constant at 0.8A, T n =100 ms, at which time 15s alerts.
Assuming that the main loop current is constant at 1.6A, T n =200 ms, at which time 7.5s alerts.
Because the range of the main loop current is between 0.8A and 1.6A which linearly corresponds to the range of the MCU input signal between 1.32V and 2.64V. Therefore, the preset reference voltage, for example, according to the minimum operating voltage drop value of the power regulator, is the reference voltage, and when the reference voltage is higher than the minimum operating voltage drop value, the sampling interval duration needs to be converted into a single integration duration, where the single integration duration is the actual time (measured voltage/reference voltage), that is, the single integration duration is the sampling interval (measured voltage/reference voltage):
wherein IAD n The voltage drop value, T, of the power regulator obtained for the nth sampling n And U is the reference voltage, deltat is the sampling interval, and n is more than 0 for the nth single integration time.
As shown in fig. 4, the temperature alarm method of the radio frequency beauty instrument comprises the following steps:
s110, acquiring main loop current of the beauty instrument when the beauty instrument works under a non-constant voltage condition every sampling interval.
The sampling interval may be set according to specific accuracy requirements, for example, 100ms sampling the main loop current once every 100 ms.
S120, determining a single integration time length of each sampling interval, and performing charge integration according to the main loop current and the single integration time length acquired in the corresponding sampling interval to obtain an accumulated charge quantity.
In one embodiment, a power regulator is serially connected in a main loop of the beauty instrument, and the main loop current is obtained by collecting voltage drops at two ends of the power regulator and then calculating according to the internal resistance of the power regulator. Again, since the range of the main loop current corresponds linearly to the range of the signal input by the controller. The single integration duration of each sampling interval may also be determined from the voltage drop across the power regulator. Specifically, determining the single integration duration for each sampling interval includes:
first, a reference voltage is determined based on a minimum operating voltage drop value of the power regulator, for example, the minimum operating voltage drop value of the power regulator may be employed as the reference voltage.
Then, the voltage drop value of the power regulator obtained by sampling in the corresponding sampling interval is obtained. For example, the voltage drop values at two ends of the MOS tube are collected through a sampling resistor R1 and a sampling resistor R2.
And finally, obtaining a single integration duration of the corresponding sampling interval according to the reference voltage and the voltage drop value. Specifically, for example, the single integration period is calculated using the following formula:
wherein IAD n The voltage drop value, T, of the power regulator obtained for the nth sampling n And U is the reference voltage, deltat is the sampling interval, and n is more than 0 for the nth single integration time.
In one embodiment, the voltage drop value of the power regulator is a voltage drop adjustment value obtained by amplifying the voltage drop initial value of the power regulator by N times, wherein N is greater than or equal to 1. For example, n=100. If the controller accuracy is high enough, the initial value of the pressure drop may not be amplified here.
In one embodiment, the integrating the charge according to the main loop current and the single integration duration acquired in the corresponding sampling interval, to obtain the accumulated charge amount includes: performing charge integration on the main loop current and the corresponding single integration time length at the same sampling interval to obtain a single integration charge quantity; and summing the single integrated charge amounts to obtain the integrated charge amounts. The calculation formula of the specific accumulated charge amount Q is as follows:
wherein i is n Main loop current, T, sampled for the nth sampling interval n And the single integration time length corresponding to the nth sampling interval.
S130, comparing the accumulated charge quantity with a preset charge quantity anchoring value, and outputting temperature warning information of the beauty instrument if the accumulated charge quantity is larger than or equal to the charge quantity anchoring value.
The charge total anchoring value is an anchoring point A a The product of the duration S, which is empirically set. The anchor point in this embodiment may take the minimum operating current value of the power regulator. For example, the anchor point A a For 0.8A, the duration S is 15S, i.e. 15S alarm is operated assuming a constant current of 0.8A.
The application also provides a temperature alarm method of the radio frequency beauty instrument so as to realize temperature alarm. As shown in fig. 5, the temperature alarm method of the radio frequency beauty instrument comprises the following steps:
s210, a power regulator is connected in series in a main loop of the beauty instrument, and the power regulator is used for regulating the working state of the main loop. And obtaining the voltage drop value of the power regulator when the beauty instrument works under the non-constant voltage condition every sampling interval.
S220, calculating to obtain a single integration duration T of each sampling interval according to the pressure drop value by adopting the following formula n ：
In the middle ofDelta t is the sampling interval, IAD n And determining a reference voltage according to the minimum working voltage drop value of the power regulator by using U as the voltage drop value of the power regulator, wherein n is more than 0, wherein the voltage drop value is obtained by sampling at the nth sampling interval.
And S230, summing the single integration time periods to obtain accumulated integration time periods. And if the accumulated integral time length is greater than or equal to the preset duration, outputting temperature warning information of the beauty instrument.
The implementation principle of the temperature alarm method of the radio frequency beauty instrument is specifically described as follows:
the calculation formula for the accumulated charge amount Q is as follows:
when the sampling period is short enough, the current change is considered to be small enough, the judgment of the result is not affected, and due to the IAD n Amplifying the initial value of the voltage drop of the MOS tube by G v The voltage drop adjustment value after multiplication is also due to the voltage drop IAD obtained by reference voltage and sampling n The single integration time is reduced, so the accumulated charge amount Q can be written as:
∫ 0 T i*dt＝A a *S
where N is the total number of samples.
The method further comprises the following steps:
further:
T＝T 1 +…+T n
it is possible to compare only the cumulative integration period with the duration size, i.e. if t=t 1 +…+T n >S, touchAnd (5) sending out a temperature alarm.
According to the method and the device, according to different skin states, different skin impedances are achieved, corresponding main loop currents in the main loops are also different, and then the working time of the beauty instrument is dynamically adjusted according to the main loop currents, so that the problems that the existing radio frequency beauty instrument is poor in experience sense due to low temperature detection accuracy and incapability of being dynamically adjusted due to the difference of the skin states and the like are effectively solved, different parts of different persons and different time of the same person at the same position are achieved, and alarms of different using time periods are achieved according to the current state of the skin. The application is to integrate the current sampling of the change (unexpected) under the condition of non-constant voltage to protect the constant electric charge.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners as well. The apparatus embodiments described above are merely illustrative, for example, of the flow diagrams and block diagrams in the figures, which illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules or units in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a smart phone, a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application.
Claims (10)
1. A temperature alarm method for a radio frequency cosmetic instrument, the method comprising:
acquiring main loop current of the beauty instrument when the beauty instrument works under a non-constant voltage condition at every sampling interval;
determining a single integration time length of each sampling interval, and performing charge integration according to the main loop current and the single integration time length acquired in the corresponding sampling interval to obtain an accumulated charge quantity;
and comparing the accumulated charge quantity with a preset charge quantity anchoring value, and outputting temperature warning information of the beauty instrument if the accumulated charge quantity is larger than or equal to the charge quantity anchoring value.
2. The temperature alarm method of a radio frequency cosmetic instrument according to claim 1, wherein a power regulator is connected in series in a main loop of the cosmetic instrument, and the power regulator is used for regulating the working state of the main loop; the determining a single integration duration for each sampling interval includes:
determining a reference voltage according to a minimum operating voltage drop value of the power regulator;
obtaining a voltage drop value of the power regulator obtained by sampling in a corresponding sampling interval;
and obtaining a single integration duration of the corresponding sampling interval according to the reference voltage and the voltage drop value.
3. The method of claim 2, wherein the integrating the electric charges according to the main loop current and the single integration time length acquired in the corresponding sampling interval to obtain an accumulated electric charge amount includes:
performing charge integration on the main loop current and the corresponding single integration time length at the same sampling interval to obtain a single integration charge quantity;
and summing the single integrated charge amounts to obtain the integrated charge amounts.
4. The temperature alarm method of the radio frequency beauty instrument according to claim 2, wherein the voltage drop value of the power regulator is a voltage drop adjustment value obtained by amplifying the voltage drop initial value of the power regulator by N times, and N is more than or equal to 1.
5. The method of claim 2, 3 or 4, wherein the charge amount anchor value is a product of a preset duration and a minimum operating current value of the power regulator.
6. The temperature alarm method of a radio frequency cosmetic instrument according to claim 2, wherein the single integration period T n The method is calculated by adopting the following formula:
wherein IAD n For the voltage drop value, T, of the power regulator obtained by sampling in the nth sampling interval n And U is the reference voltage, deltat is the sampling interval, and n is more than 0 for the nth single integration time.
7. The temperature warning method of the radio frequency beauty instrument is characterized in that a power regulator is connected in series in a main loop of the beauty instrument, and the power regulator is used for regulating the working state of the main loop; the method comprises the following steps:
acquiring a voltage drop value of the power regulator when the beauty instrument works under a non-constant voltage condition every sampling interval;
calculating to obtain a single integral duration T of each sampling interval according to the pressure drop value by adopting the following formula n ：
Wherein Δt is the sampling interval, IAD n Determining a reference voltage according to the minimum working voltage drop value of the power regulator by using U as the voltage drop value of the power regulator, wherein n is more than 0;
summing the single integration time lengths to obtain accumulated integration time lengths;
and if the accumulated integral time length is greater than or equal to the preset duration, outputting temperature warning information of the beauty instrument.
8. A radio frequency cosmetic instrument, characterized in that it comprises: the system comprises a main loop, a controller, a signal collector and an alarm;
the signal collector is used for collecting main loop current or voltage signals in the main loop when the beauty instrument works under a non-constant voltage condition and transmitting the signals to the controller;
the controller is used for determining a single integration duration of each sampling interval according to the current or voltage signal, and performing charge integration according to the main loop current and the single integration duration acquired in the corresponding sampling interval to obtain an accumulated charge quantity;
the controller is also used for comparing the accumulated charge quantity with a preset charge quantity anchoring value, and if the accumulated charge quantity is larger than or equal to the charge quantity anchoring value, the controller is used for controlling the alarm to carry out temperature alarm.
9. The radio frequency cosmetic instrument according to claim 8, wherein a power regulator is connected in series with the main circuit, and the power regulator is used for regulating the working state of the main circuit; the signal collector comprises a sampling resistor and an operational amplifier;
the two input ends of the operational amplifier are correspondingly connected with the input end and the output end of the power regulator, the output end of the operational amplifier is connected with the controller and is used for performing multiple amplification on the acquired initial pressure drop value of the power regulator, and the amplified pressure drop value is used for combining the internal resistance of the power regulator to obtain the main loop current.
10. The radio frequency cosmetic instrument of claim 9, further comprising a driving circuit connected to the power regulator, the controller for controlling on or off time of the power regulator by the driving circuit; and after the power regulator is conducted, the output power of the main loop is regulated by regulating the duty ratio.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310481629.1A CN116392718A (en) | 2023-04-27 | 2023-04-27 | Temperature alarm method of radio frequency beauty instrument and radio frequency beauty instrument |
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| CN202310481629.1A CN116392718A (en) | 2023-04-27 | 2023-04-27 | Temperature alarm method of radio frequency beauty instrument and radio frequency beauty instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117110700A (en) * | 2023-08-23 | 2023-11-24 | 易集康健康科技(杭州)有限公司 | Method and system for detecting pulse power of radio frequency power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117110700A (en) * | 2023-08-23 | 2023-11-24 | 易集康健康科技(杭州)有限公司 | Method and system for detecting pulse power of radio frequency power supply |
| CN117110700B (en) * | 2023-08-23 | 2024-06-04 | 易集康健康科技(杭州)有限公司 | Method and system for detecting pulse power of radio frequency power supply |
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