WO2020175842A1 - 휴대용 피부미용기의 이온도입부를 이용한 피부 수분 측정 시스템 및 방법 - Google Patents

휴대용 피부미용기의 이온도입부를 이용한 피부 수분 측정 시스템 및 방법 Download PDF

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Publication number
WO2020175842A1
WO2020175842A1 PCT/KR2020/002273 KR2020002273W WO2020175842A1 WO 2020175842 A1 WO2020175842 A1 WO 2020175842A1 KR 2020002273 W KR2020002273 W KR 2020002273W WO 2020175842 A1 WO2020175842 A1 WO 2020175842A1
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WO
WIPO (PCT)
Prior art keywords
skin
voltage
user
portable
value
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PCT/KR2020/002273
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English (en)
French (fr)
Inventor
박세환
박병선
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박세환
박병선
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Publication of WO2020175842A1 publication Critical patent/WO2020175842A1/ko

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
    • A61B5/443—Evaluating skin constituents, e.g. elastin, melanin, water
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6898—Portable consumer electronic devices, e.g. music players, telephones, tablet computers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient ; user input means
    • A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H04M1/72412—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces

Definitions

  • the present invention relates to a skin moisture measurement system and method using this temperature inlet of a portable skin care device. More specifically, the voltage applied to the skin through this temperature input of a portable skin care device is repeatedly charged and discharged. It is configured to measure the voltage at a certain point in the curve using the slope of this rising or falling curve, but calculate the difference between the voltage value in the state where nothing is in contact with this temperature mouth and the voltage value in the state in which the temperature contact is in contact with the skin. By doing so, it is possible to efficiently and immediately determine the moisture of the user's skin while minimizing the error in the skin moisture value, as well as providing user convenience.It is about a skin moisture measurement system and method using the ion introduction unit of a portable skin care device.
  • the skin is composed of two components called epidermis and dermis.
  • these properties depend on the amount of moisture contained in the stratum corneum of the epidermis or are regulated by the protective film function and the moisture retention function of the stratum corneum.
  • Normal skin moisture means the amount of moisture in the stratum corneum, and it is classified into dry skin, normal skin, and fatty skin when expressing the properties of the skin. These classifications generally indicate the degree of skin fat mass. This is also an expression, which is also the difference in the amount of moisture in the stratum corneum.
  • the amount of moisture is measured by the electrical resistance.
  • microwaves to measure the reflected wave
  • the light corresponding to the near-infrared region to the face or the location of the skin desired to be measured.
  • Patent Document 1 Unexamined Patent Publication No. 10-2008-0016339
  • the patent document 1 is an electrode module for applying a predetermined voltage to the user's skin and detecting a current signal flowing to the user's skin; And the current signal and
  • the skin water content of the user is measured through an out-phase signal, and the activity of the user's skin is performed through the current signal and an in-phase signal.
  • of sweat duct which includes an immediate control module, which applies a predetermined voltage to the user's skin in the R, C, M electrode method and detects the current signal flowing through the user's skin, and the detected current signal and the selected (predefined) It is characterized by being configured to immediately determine the skin water content and activity of sweat duct of the user by using a phase signal.
  • the R, C, M electrode method of skin hydration measurement method as in Patent Document 1 must be in contact with the skin when the C electrode and R electrode are moved simultaneously, and if the C electrode does not contact the skin. In this state, if the R electrode first comes into contact with the skin, the sine wave applied from the C electrode to the skin may be distorted, making it difficult to measure the skin impedance, and even if it was measured, the result was inevitably distorted. In addition, skin impedance Even during the measurement, the R, C, and M electrodes must all be in contact with each other stably, so there was a problem that measurement errors occurred due to the movement of each user.
  • the moisture meter as in Patent Document 1 is a portable for entering this temperature
  • the user Since it is configured separately from the skin beauty device, the user has to purchase and carry each of the skin beauty device and the moisture meter, so there is a problem that causes inconvenience as well as cost burden to the user.
  • this temperature inlet of the portable skin care device In the process of repetitively charging and discharging the voltage applied to the skin through this temperature inlet of the portable skin care device, it is configured to measure the voltage at a certain point in the curve by using the inclination of the curve that rises or falls above the voltage. The voltage value in the non-state and this temperature in the state of contacting the skin
  • a skin moisture measurement system using this temperature inlet of a portable skin beauty device includes a housing, a battery mounted inside the housing to supply power, and the above A voltage control circuit that controls the voltage output from the battery and controls the pulsed voltage to be applied to the user's skin, and is electrically connected to one of the two electrodes of the battery and is connected to one end of the housing. Ion is introduced into the user's skin, including the temperature inlet which is located and contacted with the user's skin, and the other of the two electrodes of the battery, which is electrically connected to the hand electrode that is located on the side of the housing and which the user's hand is in contact with.
  • It is configured to measure the voltage at a certain point of the curve by using the slope of the curve of the section where the voltage rises or falls above every cycle of the pulse () signal that is repeatedly charged and discharged, but the reference voltage in the state that nothing is in contact with the above temperature input. The difference between the value and the voltage value when this temperature is in contact with the skin.
  • a housing a battery mounted inside the housing to supply power, a voltage control circuit that controls the voltage output from the battery and controls a pulse () type of voltage to be applied to the user's skin; It is electrically connected to one of the two electrodes of the battery and is located at one end of the housing and is electrically connected to the temperature inlet which is in contact with the user's skin, and to the other of the two electrodes of the battery.
  • It is configured to measure the voltage at a certain point of the curve by using the slope of the curve of the section where the voltage rises or falls above every cycle of the pulse () signal that is repeatedly charged and discharged, but the reference voltage in the state that nothing is in contact with the above temperature input. The difference between the value and the voltage value when this temperature is in contact with the skin.
  • the portable skin care device By calculating, it is configured to measure the amount of skin moisture of the user, and the portable skin care device features a screen to guide the user's skin moisture measurement and a display unit that displays the skin moisture measurement result screen.
  • the error rate is minimized and a reliability coefficient is calculated to obtain the optimum skin moisture measurement value, but the above reliability coefficient is an integer input value for the charge/discharge time ( ⁇ not 0 to 0. It is characterized in that it is calculated according to the following equation in the state of setting in order to 6. 2020/175842 1»(:1 ⁇ 1 ⁇ 2020/002273
  • [2 Confidence coefficient, maximum value of voltage during charging and discharging, 111: minimum value of voltage during charging and discharging, 0: standard deviation of measured voltage, I: time required for charging and discharging)
  • the value with the highest confidence coefficient is determined as the optimal discharge level, and the constant input value for the charge/discharge time corresponding to the optimal discharge level is configured to extract and store the frequency matched to It is a feature.
  • the skin moisture measurement function When selecting the skin moisture measurement function through the application, it is characterized in that 6 to 7 half frequencies are configured to be output in the form of pulses by the control of the voltage control circuit.
  • the method for measuring skin moisture using this temperature inlet of a portable skin care device is to run an application installed in a user terminal and connect it to a portable skin care device, and then select a skin moisture measurement function.
  • Skin moisture measurement function selection step Outputting a preset frequency by control of the voltage control circuit of the portable skin care device, and a section upward from the bottom dead center to the top dead center of each cycle of the output frequency or from the top dead center to the bottom dead center
  • a reference voltage value for skin moisture measurement including the step of measuring a voltage value at one point in the downward section, and calculating the average voltage value of the voltage value measured for each period of the output frequency in the voltage control circuit.
  • Measuring the reference voltage value to be measured The step of contacting the ion introduction unit to the moisture measurement site while the finger is in contact with the hand electrode provided in the portable skin care device; outputting a frequency preset by control of the voltage control circuit of the portable skin care device; and output frequency Measuring the voltage value at one of the sections going from the bottom dead center to the top dead center or the section going down from the top dead center to the bottom dead center of each cycle, and the voltage value measured for each cycle of the output frequency in the voltage control circuit.
  • a skin voltage value measuring step of measuring a skin voltage value including calculating an average voltage value; And through the reference voltage value measuring step from the skin voltage value measured through the skin voltage value measuring step in the portable skin care device. It features a skin moisture amount calculation step of calculating the skin moisture amount based on the final voltage value calculated by calculating the difference between the measured reference voltage values.
  • the application guides the contact of this temperature inlet to the moisture measurement area with the finger in contact with the hand electrode of the portable skin care device. It is characterized by further including a moisture measurement guide step.
  • a skin condition display step of displaying the skin moisture amount and skin type calculated through the skin moisture amount calculation step on a user terminal is further included.
  • the error rate is minimized and the reliability coefficient for obtaining the optimum skin moisture measurement value is reduced, but the above reliability coefficient is for the medium discharge time.
  • the feature is that the integer input value ( ⁇ is set in order from 0 to 6, and is calculated according to the following equation.
  • [3] is configured to determine the value with the highest reliability coefficient as the optimal discharge level, and to extract and store an integer input value (frequency matched to the ⁇ ) for the charge/discharge time corresponding to the optimal discharge level. It is a feature.
  • Input value (The frequency matched to the ⁇ is 6 ⁇ 7 half, and when the skin moisture measurement function is selected through the application installed on the user terminal, 6 ⁇ 7 half frequencies are output in pulse form by the control of the voltage control circuit. It is characterized by being composed.
  • the voltage rises or falls at a certain point in the curve. It is configured to measure the voltage, but by calculating the difference between the voltage value when nothing is in contact with this temperature mouth and the voltage value when the temperature mouth is in contact with the skin, it minimizes the error of the skin moisture value and efficiently reduces the moisture of the user's skin. Not only can it be instantiated, it has the advantage of providing user convenience.
  • FIG. 1 is a configuration diagram of a skin moisture measurement system using the temperature mouth of a portable skin beauty device according to a preferred embodiment of the present invention.
  • Figure 2 is a portable skin beauty device according to a preferred embodiment of the present invention.
  • 2020/175842 1»(:1 ⁇ 1 ⁇ 2020/002273 An explanatory diagram showing the status of the skin moisture measurement using the skin moisture measurement system.
  • FIG. 3 is a flow chart showing a method of measuring skin moisture using an ion-introduced part of a portable skin beauty device according to a preferred embodiment of the present invention.
  • Figures 4 to 7 is a portable skin beauty device according to a preferred embodiment of the present invention.
  • An explanatory diagram showing a screen of a user terminal for a method of measuring skin moisture using an ion implantation unit.
  • FIG. 1 is a configuration diagram of a skin moisture measurement system using an ion introduction unit of a portable skin beauty device according to a preferred embodiment of the present invention
  • FIG. 2 is a skin moisture using an ion introduction unit of a portable skin beauty device according to a preferred embodiment of the present invention. It is an explanatory diagram showing the state in which the measurement system is measuring skin moisture.
  • the skin moisture measurement system using the ion introduction unit of the portable skin beauty device includes a portable skin beauty device 100 and a user terminal 200.
  • the portable skin beauty device 00) is equipped with this temperature mouth function and
  • the portable skin beauty device 100 is the
  • the voltage applied to the skin through the ion introduction unit 120 is repeatedly charged and discharged.
  • the characteristic feature is that it is configured to measure the voltage at a certain point on the curve by using the slope of the curve of the section where the voltage rises or falls over every cycle of the signal.
  • the reference voltage value in the state in which nothing is in contact with the ion introduction part 120 and 2020/175842 1» (:1 ⁇ 1 ⁇ 2020/002273)
  • the present invention minimizes the error rate in the process of measuring the moisture of the user's skin, and is configured to calculate a reliability coefficient to obtain an optimal skin moisture measurement value, which is a basic constant for frequency output in the frequency output program. It can be calculated according to the following equation (1) by setting the input value, the constant input value ( ⁇ ) for the charge/discharge time, and if the constant input value for the charge/discharge time ( ⁇ exceeds 6, the charge/discharge time becomes longer. As only a certain value comes out, the present invention is configured to calculate an integer input value ( ⁇ of 0 to 6 in sequence) for the charge/discharge time.
  • the present invention minimizes the error rate in detecting the amount of skin moisture by deriving an integer input value for the charge/discharge time (6 to 7 half of the frequency when the ⁇ is '2'), as shown in FIG.
  • Optimal skin moisture readings can be obtained. 2020/175842 1»(:1/10 ⁇ 020/002273
  • the user terminal 200 communicates with the portable skin beauty device 100,
  • An application for guiding the user's skin moisture measurement is installed, and as shown in Figs. 4 to 7, it is configured to provide a user interface for performing moisture measurement from the connection process with a portable skin care device).
  • the process for measuring skin moisture was described as being conducted through a portable skin care device (0), but an application installed in the user terminal 200 based on the measurement information provided from the portable skin care device (100). It would also be possible to configure the moisture measurement to proceed through the device.
  • the preset output frequency minimizes the error rate in detecting the amount of skin moisture, and as described above, to obtain the optimum skin moisture measurement value, as described above, input an integer for the charge/discharge time, where the confidence coefficient) represents the highest value It is desirable to consist of 6 to 7 urine, which is the frequency corresponding to the value ( ⁇ .
  • a screen that guides the ion introduction unit 120 to contact the moisture measurement area (300) is output, and accordingly, the user touches the finger to the hand electrode 130 provided in the portable skin care device 00).
  • the preset 6-7 urine frequency is output by the control of the voltage control circuit of the portable skin care device 00).At this time, as shown in FIG.
  • the voltage control circuit calculates the average voltage value of the voltage value measured for each cycle of the output frequency, so that the skin voltage value for skin moisture measurement is measured 400). do.
  • a screen instructing to remove the portable skin care device 100 from the user's skin is output, and the reference voltage value measurement step 200 from the skin voltage value measured through the skin voltage value measurement step 400) in the portable skin care device 00).
  • the skin moisture amount is calculated based on the final voltage value calculated by calculating the difference between the reference voltage value measured through)
  • the final voltage value from the value range top is set state of the voltage values corresponding to each of the skin granular based on the Moisty, etc. It is configured to detect the skin type that falls within the range and convert the amount of skin moisture relative to the final voltage value into a percentage.
  • the present invention uses the slope of the curve to increase or decrease the It is configured to measure the voltage at the point, but by calculating the difference between the voltage value in a state in which nothing is in contact with this temperature inlet 120 and the voltage value in a state in which the temperature inlet 120 is in contact with the skin, the error in the skin moisture value is calculated. It is possible not only to efficiently measure the moisture of the user's skin while minimizing it, but also to provide user convenience.
  • the present invention displays a screen to guide the user's skin moisture measurement in the portable skin care device (0).
  • the portable skin care device 100 does not communicate with the user terminal, and everything from guidance on skin moisture measurement to the display of the result is performed, and the display unit 140 It is preferable that the operation button 150 is provided so that it is possible to execute the contents displayed in the screen or select this temperature input function or moisture measurement function.
  • the display unit 140 may be operable by applying a touch screen.

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Abstract

본 발명은 이온도입기를 이용한 피부 수분 측정 시스템 및 방법에 관한 것으로서, 휴대용 피부미용기의 이온도입부를 통해 피부로 인가되는 전압을 반복적으로 충방전하는 과정에서 전압이 상승하거나 하강하는 곡선의 기울기를 이용하여 곡선의 일정한 지점에서 전압을 측정하도록 구성하되, 이온도입부에 아무것도 접촉되지 않은 상태의 전압값과 이온도입부를 피부에 접촉시킨 상태의 전압값의 차를 계산함으로써, 피부수분값의 오차를 최소화하면서 사용자 피부의 수분을 효율적으로 측정할 수 있을 뿐만 아니라, 사용자 편의를 제공할 수 있는 것이 특징이다.

Description

2020/175842 1»（：1/10公020/002273 명세서
발명의명칭:휴대용피부미용기의 이온도입부를이용한피부스ᄇ
_厂\느 측정시스템및방법
기술분야
[1] 본발명은휴대용피부미용기의이온도입부를이용한피부수분측정시스템 및방법에관한것으로서,더상세하게는휴대용피부미용기의이온도입부를 통해피부로인가되는전압을반복적으로충방전하는과정에서전압이 상승하거나하강하는곡선의기울기를이용하여곡선의일정한지점에서 전압을측정하도록구성하되,이온도입부에아무것도접촉되지않은상태의 전압값과이온도입부를피부에접촉시킨상태의전압값의차를계산함으로써, 피부수분값의오차를최소화하면서사용자피부의수분을효율적으로즉정할 수있을뿐만아니라,사용자편의를제공할수있는휴대용피부미용기의 이온도입부를이용한피부수분측정시스템및방법에관한것이다.
배경기술
[2] 일반적으로피부는표피와진피라고하는두가지구성성분이결합하여
만들어진구조물로,피부표면의유연성및탄력성등의성질은인체를
보호하거나신체의운동이원활하게일어날수있도록하는주요한인자로서, 이러한성질은표피의각질층에함유되어 있는수분량에의존하고있거나 각질층의보호막기능과수분유지기능에의해조절되고있다.
[3] 통상피부의수분이라함은각질층중에수분량인것을의미하는것으로서, 피부의성질을표시함에 있어서,건성피부,중성피부,지방성피부로분류되는데, 이러한분류는일반적으로피부지방량의정도를표시하는표현인바,이것은 또한각질층의수분량의차（差）이기도하다.
[4] 또한,이각질층의수분량은피부지방량의감소와함께감소되는데,그래서 피부의성질을아는것은화장을할때에자기자신의피부의성질에맞추어서 화장품을선택하거나,피부건강의보전상으로서적절한처치를취할수 있으므로대단한의미가있으며,따라서피부의수분량측정은매우중요한 요소로인식되고있다.
[5]
[6] 이러한피부의수분을측정하기위한방식으로는수분량을전기저항을
이용하여서측정하는방식,사람의피부등의표피,진피,각질층의수분량을 마이크로파를피부에닿게하여그반사파를측정하는방식,근적외선영역에 해당하는빛을얼굴이나측정을원하고자하는피부의위치에조사하고 반사되는스펙트럼을측정하여피부의각질층에함유된수분량을측정하는 방식등이존재하나,상기수분측정방식들은주위의환경에따라정밀한수분 측정이용이하지않은문제점이있었다. [7]
[8] 상기와같은문제점을해결하기위한,’’피부수화도측정방법’’이
공개특허공보제 10-2008-0016339호 (이하,’특허문헌 1’이라함.)에게시되어 있다.
[9] 상기특허문헌 1은사용자피부로소정의전압을인가하고,상기사용자피부에 흐르는전류신호를검출하는전극모듈;및상기전류신호및
아웃-페이즈 (out-phase)신호를통해상기사용자피부의수화도 (skin water content)를측정하고,상기전류신호및인-페이즈 (in-phase)신호를통해상기 사용자피부의한선활동도 (activity of sweat duct)를즉정하는즉정제어모듈을 포함하는것으로서, R, C, M전극방식으로사용자피부로소정의전압을 인가하고사용자피부에흐르는전류신호를검출하여검출된전류신호와 선정된 (predefined)페이즈 (phase)신호를이용하여사용자피부의수화도 (skin water content)및한선활동도 (activity of sweat duct)를즉정하도록구성되는것이 특징이다.
[1이
[11] 그러나,상기특허문헌 1과같은 R, C, M전극방식의피부수화도측정방식은, 반드시 C전극과 R전극이동시에피부에접촉해야하며,만약, C전극이피부에 접촉하지않은상태에서 R전극이먼저피부에접촉되면, C전극에서피부로 인가되는정현파가왜곡될수있어피부임피던스측정이용이하지않을뿐만 아니라,측정되더라도그결과가왜곡될수밖에없는문제점이있었다.또한, 피부임피던스측정중에도 R, C, M전극이모두안정적으로접촉하고있어야 하므로,사용자별로그움직임에의해측정오차가발생하는문제점이있었다.
[12] 한편,상기특허문헌 1과같은수분측정기는이온도입을위한휴대용
피부미용기와는별도로구성됨에따라,사용자가피부미용기와수분측정기를 각각구매하여소지해야하므로,사용자에게비용적인부담은물론,불편함을 초래하게되는문제점이 있었다.
발명의상세한설명
기술적과제
[13] 본발명은상술한문제점을해결하고자안출된것으로서,본발명의목적은
휴대용피부미용기의이온도입부를통해피부로인가되는전압을반복적으로 충방전하는과정에서전압이상승하거나하강하는곡선의기울기를이용하여 곡선의일정한지점에서전압을측정하도록구성하되,이온도입부에아무것도 접촉되지않은상태의전압값과이온도입부를피부에접촉시킨상태의
전압값의차를계산함으로써 ,피부수분값의오차를최소화하면서사용자 피부의수분을효율적으로측정하는것이가능할뿐만아니라,사용자편의를 제공하는것이가능한휴대용피부미용기의이온도입부를이용한피부수분 측정시스템및방법을제공하는것이다.
과제해결수단 2020/175842 1»（：1^1{2020/002273
[14] 상기와같은문제점을해결하기위하여본발명의바람직한실시예에따른 휴대용피부미용기의이온도입부를이용한피부수분측정시스템은,하우징과, 상기하우징내부에장착되어전원을공급하는전지와,상기전지로부터 출력되는전압을제어하며펄스여山 ）형태의전압이사용자의피부로 인가되도록제어하는전압제어회로와,상기전지의두개의전극중어느하나의 전극에전기적으로연결되며상기하우징의일단에위치하여사용자피부에 접촉되는이온도입부와,상기전지의두개의전극중나머지하나의전극에 전기적으로연결되며상기하우징의측면에위치하여사용자손이접촉되는 손전극을포함하여사용자피부에이온을도입하는휴대용피부미용기 ;및상기 휴대용피부미용기와통신하며,사용자의피부수분측정을안내하기위한 어플리케이션이설치되는사용자단말기 ;를포함하고,
[15] 상기휴대용피부미용기의이온도입부를통해피부로인가되는전압을
반복적으로충방전하는펄스（ ）신호의매주기마다전압이상승하거나 하강하는구간의곡선의기울기를이용하여곡선의일정한지점에서전압을 측정하도록구성하되,상기이온도입부에아무것도접촉되지않은상태의 기준전압값과이온도입부를피부에접촉시킨상태의전압값의차를
계산함으로써,사용자의피부수분량을측정하도록구성되는것을특징으로 한다.
[16] 또한,하우징과,상기하우징내부에장착되어전원을공급하는전지와,상기 전지로부터출력되는전압을제어하며펄스（ ）형태의전압이사용자의 피부로인가되도록제어하는전압제어회로와,상기전지의두개의전극중어느 하나의전극에전기적으로연결되며상기하우징의일단에위치하여사용자 피부에접촉되는이온도입부와,상기전지의두개의전극중나머지하나의 전극에전기적으로연결되며상기하우징의측면에위치하여사용자손이 접촉되는손전극을포함하여사용자피부에이온을도입하는휴대용
피부미용기에 있어서,
[17] 상기휴대용피부미용기의이온도입부를통해피부로인가되는전압을
반복적으로충방전하는펄스（ ）신호의매주기마다전압이상승하거나 하강하는구간의곡선의기울기를이용하여곡선의일정한지점에서전압을 측정하도록구성하되,상기이온도입부에아무것도접촉되지않은상태의 기준전압값과이온도입부를피부에접촉시킨상태의전압값의차를
계산함으로써,사용자의피부수분량을측정하도록구성되며,상기휴대용 피부미용기에는사용자의피부수분측정을안내하기위한화면및피부수분 측정결과화면을표시하는디스플레이부가구비되는것을특징으로한다.
[18] 또한,사용자피부의수분을측정하는과정에서오차율을최소화하며최적의 피부수분측정값을얻기위한신뢰계수를산출하되,상기신뢰계수는충방전 시간에대한정수입력값（刀을 0내지 6으로차례대로설정한상태에서아래의 수학식에따라계산되는것을특징으로한다. 2020/175842 1»（：1^1{2020/002273
Figure imgf000006_0001
[2이 （ 신뢰계수, 충방전시전압의최대값, 111：충방전시전압의최소값, 0： 측정전압의표준편차, I:충방전시소요되는시간）
[21] 또한,상기신뢰계수가가장높은값을최적의방전기울기로결정하고,상기 최적의방전기울기에해당하는충방전시간에대한정수입력값（刀에매칭된 주파수를추출하여저장하도록구성되는것을특징으로한다.
[22] 또한,상기최적의방전기울기에해당하는충방전시간에대한정수
입력값（刀에매칭된주파수는 6~7반 며 ,상기사용자단말기에설치된
어플리케이션을통해피부수분측정기능을선택시,상기전압제어회로의 제어에의해 6~7반 의주파수가펄스형태출력되도록구성되는것을특징으로 한다.
[23]
[24] 한편,본발명의바람직한실시예에따른휴대용피부미용기의이온도입부를 이용한피부수분측정방법은,사용자단말기에설치된어플리케이션을 실행하여휴대용피부미용기와연결시킨후,피부수분측정기능을선택하는 피부수분측정기능선택단계;상기휴대용피부미용기의전압제어회로의제어에 의해기설정된주파수를출력하는단계와,출력주파수의매주기의하사점에서 상사점으로상향하는구간또는상사점에서하사점으로하향하는구간중 일지점에서전압값을측정하는단계및상기전압제어회로에서상기출력 주파수의매주기별로측정된전압값의평균전압값을계산하는단계를 포함하여피부수분측정을위한기준전압값을측정하는기준전압값측정단계 ; 상기휴대용피부미용기에구비되는손전극에손가락을접촉한상태에서 이온도입부를수분측정부위에접촉시키는단계와,상기휴대용피부미용기의 전압제어회로의제어에의해기설정된주파수를출력하는단계와,출력 주파수의매주기의하사점에서상사점으로상향하는구간또는상사점에서 하사점으로하향하는구간중일지점에서전압값을측정하는단계및상기 전압제어회로에서상기출력주파수의매주기별로측정된전압값의
평균전압값을계산하는단계를포함하여피부전압값을측정하는피부전압값 측정단계;및상기휴대용피부미용기에서상기피부전압값측정단계를통해 측정된피부전압값으로부터상기기준전압값측정단계를통해측정된 기준전압값의차를계산한최종전압값을기초로피부수분량을산출하는 피부수분량산출단계 ;를포함하는것을특징으로한다.
[25] 또한,상기기준전압값측정단계를통해기준전압값측정이완료된이후에는, 상기어플리케이션에서상기휴대용피부미용기의손전극에손가락을접촉한 상태로이온도입부를수분측정부위에접촉시키도록안내하는수분측정 안내단계 ;를더포함하는것을특징으로한다. 2020/175842 1»（：1^1{2020/002273
[26] 또한,상기피부수분량산출단계이후에는,상기피부수분량산출단계를통해 산출된피부수분량및피부타입을사용자단말기에디스플레이하는피부상태 표시단계;를더포함하는것을특징으로한다.
[27] 또한,상기휴대용피부미용기의이온도입부를통해피부로인가되는전압을 반복적으로충방전하는펄스（ ）신호의매주기마다전압이상승하거나 하강하는구간의곡선의기울기를이용하여곡선의일정한지점에서전압을 측정하도록구성되며,상기이온도입부에아무것도접촉되지않은상태의 기준전압값과이온도입부를피부에접촉시킨상태의전압값의차를
계산함으로써,사용자의피부수분량을측정하도록구성되되,사용자피부의 수분을측정하는과정에서오차율을최소화하며최적의피부수분측정값을 얻기위한신뢰계수를산줄하되，상기신뢰계수는중방전시간에대한정수 입력값（刀을 0내지 6으로차례대로설정한상태에서아래의수학식에따라 계산되는것을특징으로한다.
Figure imgf000007_0001
[29] （ 신뢰계수, 충방전시전압의최대값, 111：충방전시전압의최소값, 0： 측정전압의표준편차）
[3이 또한,상기신뢰계수가가장높은값을최적의방전기울기로결정하고,상기 최적의방전기울기에해당하는충방전시간에대한정수입력값（刀에매칭된 주파수를추출하여저장하도록구성되는것을특징으로한다.
[31] 또한,상기최적의방전기울기에해당하는충방전시간에대한정수
입력값（刀에매칭된주파수는 6~7반 며 ,상기사용자단말기에설치된 어플리케이션을통해피부수분측정기능을선택시,상기전압제어회로의 제어에의해 6~7반 의주파수가펄스형태출력되도록구성되는것을특징으로 한다.
발명의효과
[32] 이상상술한바와같이본발명에따르면휴대용피부미용기의이온도입부를 통해피부로인가되는전압을반복적으로충방전하는과정에서전압이 상승하거나하강하는곡선의기울기를이용하여곡선의일정한지점에서 전압을측정하도록구성하되,이온도입부에아무것도접촉되지않은상태의 전압값과이온도입부를피부에접촉시킨상태의전압값의차를계산함으로써, 피부수분값의오차를최소화하면서사용자피부의수분을효율적으로즉정할 수있을뿐만아니라,사용자편의를제공할수있는장점이 있다.
도면의간단한설명
[33] 도 1은본발명의바람직한실시예에따른휴대용피부미용기의이온도입부를 이용한피부수분측정시스템의구성도.
[34] 도 2는본발명의바람직한실시예에따른휴대용피부미용기의이온도입부를 2020/175842 1»（：1^1{2020/002273 이용한피부수분측정시스템의 피부수분측정을진행하는상태를보인설명도.
[35] 도 3은본발명의 바람직한실시예에 따른휴대용피부미용기의 이온도입부를 이용한피부수분측정방법을보인흐름도.
[36] 도 4내지 7은본발명의 바람직한실시예에 따른휴대용피부미용기의
이온도입부를이용한피부수분측정 방법에 대한사용자단말기의 화면을보인 설명도.
[37] 도 8내지 14는본발명의 바람직한실시예에 따른휴대용피부미용기의
이온도입부를이용한피부수분측정시스템및방법의충방전시간에 대한정수 입력값 (刀을 0내지 6으로각각설정한상태에서의 전압측정 화면을보인 설명도.
발명의실시를위한최선의형태
[38] 이하,도면을참조하여본발명을상세히설명하기로한다.각도면에 제시된 동일한참조부호는동일한부재를나타낸다.
[39] 도 1은본발명의 바람직한실시예에 따른휴대용피부미용기의 이온도입부를 이용한피부수분측정시스템의구성도이고,도 2는본발명의 바람직한 실시예에 따른휴대용피부미용기의 이온도입부를이용한피부수분측정 시스템의 피부수분측정을진행하는상태를보인설명도이다.
[4이
[41] 도 1및 2를참조하면,본발명의 바람직한실시예에 따른휴대용피부미용기의 이온도입부를이용한피부수분측정시스템은,휴대용피부미용기 (100),사용자 단말기 (200)를포함한다.
[42] 상기휴대용피부미용기 00)는이온도입기능이구비되어사용자피부에
이온을도입함에따라피부미용을가능하게하는것으로서,사용자가손으로 파지 가능한하우징 ( 0)과,상기하우징 내부에장착되어 전원을공급하는 전지 (미도시)와,상기 전지로부터출력되는전압을제어하며펄스 ( )형태의 전압이사용자의피부로인가되도록제어하는전압제어회로 (미도시)와,상기 전지의두개의 전극중어느하나의 전극에 전기적으로연결되며상기 하우징 ( 0)의 일단에 위치하여사용자피부에접촉되는이온도입부 (120)와, 상기 전지의두개의 전극중나머지하나의 전극에 전기적으로연결되며상기 하우징 ( 0)의측면에 위치하여사용자손이접촉되는손전극 (130)으로 구성되는데,본발명에 있어서,상기휴대용피부미용기 (100)는상기
이온도입부 (120)를통해피부로인가되는전압을반복적으로충방전하는
Figure imgf000008_0001
신호의 매주기마다전압이상승하거나하강하는구간의곡선의 기울기를이용하여곡선의 일정한지점에서 전압을측정하도록구성되는것이 특징이다.
[43] 자세히설명하면,본발명의휴대용피부미용기 ( ^0)는상기
이온도입부 (120)에아무것도접촉되지 않은상태의기준전압값과 2020/175842 1»（：1^1{2020/002273 이온도입부（120）를피부에 접촉시킨상태의 전압값의차를계산함으로써, 사용자의 피부수분량을측정하도록구성되는데,충방전시상승하거나 하강하는전압곡선의 기울기는피부수분양측정에 있어서디테일한값을 결정하게되며 ,이러한전압곡선의기울기에 영향을미치는것은충방전시간에 해당한다.
[44] 만약,전압곡선의 기울기가상대적으로지나치게완만하면,즉,충방전시간이 길면,수분측정값의범위가매우좁아질것이고,전압곡선의 기울기가 상대적으로지나치게가파르면,즉,충방전시간이짧으면,수분측정값의 범위가매우넓어질것이다.
[45]
[46] 본발명은사용자피부의수분을측정하는과정에서오차율을최소화하며 최적의 피부수분측정값을얻기 위하여신뢰계수를산출하도록구성되는데, 상기신뢰계수는주파수출력프로그램에서주파수출력을위한기본정수 입력값인충방전시간에 대한정수입력값（刀을설정하여다음과같은수학식 1에 따라계산될수있으며,충방전시간에 대한정수입력값（刀이 6이넘어가는 경우,충방전시간이지나치게길어져 일정한값만나오게됨에따라,본 발명에서는충방전시간에 대한정수입력값（刀을 0내지 6으로차례대로설정한 상태에서 계산하도록구성하였다.
[47] [수식 1]
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[48] （ 신뢰계수, 충방전시 전압의최대값, 111：충방전시 전압의 최소값, 0： 측정전압의표준편차, I:충방전시소요되는시간）
[49]
[5이 상기수학식 1에의해충방전시간에 대한정수입력값（刀인 0내지 6에 대한 각각의신뢰계수（¾를얻게되면,상기신뢰계수 ）가가장높은값을최적의 방전기울기로결정하게되며,상기 최적의방전기울기에 해당하는충방전 시간에 대한정수입력값（刀에 매칭된주파수를추출하게되는데,아래의표 1 내지 7과같은실험결과,충방전시간에 대한정수입력값（刀이’2’인경우, 신뢰계수 ）가가장높은값을나타내었다.
[51] 이에따라,본발명에서는도 에도시된바와같이 ,충방전시간에 대한정수 입력값（刀이’2’인경우의주파수 6~7반 를도출해냄으로써,피부수분량을 검출함에 있어서오차율을최소화하며최적의 피부수분측정값을얻을수있게 된다. 2020/175842 1»（：1/10公020/002273
[52] [표 1]
Figure imgf000010_0002
[53] :충방전시간에 전압의최대값,페전압의최소값, I: 충방전시소요되는
Figure imgf000010_0001
2020/175842 1»（：1/10公020/002273
[54] [표 2]
Figure imgf000011_0002
[55] :충방전시간에 전압의최대값,페전압의최소값, I: 충방전시소요되는
Figure imgf000011_0001
2020/175842 1»（：1/10公020/002273
[56] [표 3]
Figure imgf000012_0002
[57] :충방전시간에대한정수
Figure imgf000012_0001
전압의최대값, 111:전압의최소값, I: 충방전시소요되는시간)
2020/175842 1»（：1/10公020/002273
[58] [표 4]
Figure imgf000013_0002
[59] :충방전시간에 전압의최대값,페전압의최소값, I: 충방전시소요되는
Figure imgf000013_0001
2020/175842 1»（：1/10公020/002273
[60] [표 5]
Figure imgf000014_0002
[61] :충방전시간에대한정수
Figure imgf000014_0001
전압의최대값,페전압의최소값, I: 충방전시소요되는시간)
2020/175842 1»（：1/10公020/002273
[62] [표 6]
Figure imgf000015_0002
[63] :충방전시간에 전압의최대값,페전압의최소값, I: 충방전시소요되는
Figure imgf000015_0001
[64] [표 7]
Figure imgf000016_0001
[65] (I:충방전시간에대한정수입력값, 전압의최대값, 111：전압의최소값, I: 충방전시소요되는시간)
[66]
[67] 상기사용자단말기 (200)는상기휴대용피부미용기 (100)와통신하며 ,
사용자의피부수분측정을안내하기위한어플리케이션이설치되는것으로서, 도 4내지 7에도시된바와같이,휴대용피부미용기 )와의연결과정부터 수분측정진행을위한사용자인터페이스를제공하도록구성된다.
[68] 본발명에서는피부수분측정을위한프로세스가휴대용피부미용기 ( 0)를 통해진행되는것으로설명하였으나,휴대용피부미용기 (100)로부터제공되는 측정정보를기반으로사용자단말기 (200)에설치되는어플리케이션을통해 수분측정을진행하도록구성하는것도가능할것이다.
[69]
이 이하에서는도 1내지 7을참조하여본발명의바람직한실시예에따른휴대용 피부미용기의이온도입부를이용한피부수분측정방법을설명하기로한다. 1] 먼저,사용자단말기 (200)에설치된어플리케이션을실행하여휴대용
피부미용기 (100)와연결시킨후,피부수분측정하기기능을선택 100)하게 2020/175842 1»（：1^1{2020/002273 되면,사용자단말기 (200)화면에’잠시만기다려주세요’라는메시지와함께상기 휴대용피부미용기 ( 0)의전압제어회로의제어에의해기설정된주파수를 출력하게되는데,이때,출력주파수의매주기의하사점에서상사점으로 하향하는구간또는상사점에서하사점으로하향하는구간중일지점에서 전압값을측정한후,상기전압제어회로에서상기출력주파수의매주기별로 측정된전압값의평균전압값을계산함으로써,피부수분측정을위한기준 전압값을측정 200)하게된다.
2] 한편,상기기설정된출력주파수는피부수분량을검출함에있어서오차율을 최소화하며최적의피부수분측정값을얻을수있도록전술한바와같이, 신뢰계수 )가가장높은값을나타낸충방전시간에대한정수입력값 (刀에 해당하는주파수인 6~7뇨 로구성되는것이바람직하다.
3]
4] 상기와같이 ,기준전압값측정이완료되면,상기어플리케이션에서상기
휴대용피부미용기 (100)의손전극 (130)에손가락을접촉한상태로
이온도입부 (120)를수분측정부위에접촉시키도록안내 300)하는화면을 출력하게되며,이에따라사용자가휴대용피부미용기 00)에구비되는 손전극 (130)에손가락을접촉한상태에서이온도입부 (120)를수분측정부위에 접촉시키게되면,휴대용피부미용기 00)의전압제어회로의제어에의해 기설정된 6~7뇨 의주파수를출력하게되는데,이때,도 2에도시된바와같이, 발진신호가이온도입부 (120)가접촉된사용자피부의표피와진피의상위층을 거쳐저항이낮은곳을중심으로손전극으로흘러가게되며,출력주파수의매 주기의하사점에서상사점으로하향하는구간또는상사점에서하사점으로 하향하는구간중일지점에서전압값을측정한후,전압제어회로에서출력 주파수의매주기별로측정된전압값의평균전압값을계산함으로써,피부수분 측정을위한피부전압값을측정 400)하게된다.
5]
6] 상기와같이 ,피부전압값측정이완료되면,상기어플리케이션에서상기
휴대용피부미용기 (100)를사용자피부로부터떼어낼것을안내하는화면을 출력하게되며,휴대용피부미용기 00)에서상기피부전압값측정단계 400)를 통해측정된피부전압값으로부터상기기준전압값측정단계 200)를통해 측정된기준전압값의차를계산한최종전압값을기초로피부수분량을
산출 500)하게되는데,피부수분량산출시에는’ ’, ^0^1', ,Moisty,등을 기초로세분화된각각의피부타입에해당하는전압값의수치범위가기설정된 상태에서상기최종전압값이속하는범위에해당하는피부타입을검출하고, 최종전압값에대한피부수분량을백분율로환산하도록구성된다.
7]
8] 마지막으로,상기피부수분량산출 500)를통해피부수분량산출이완료되면, 상기어플리케이션에서피부수분량산출단계 500)를통해산출된피부수분량 2020/175842 1»（：1/10公020/002273 및피부타입에관한화면을사용자단말기 (100)에출력 600)함으로써,사용자가 수분측정을원한부위에 대한수분량및피부타입을확인하는것이가능하게 된다. 본발명은전술한바와같이,휴대용피부미용기 (100)의 이온도입부 (120)를 통해피부로인가되는전압을반복적으로충방전하는과정에서 전압이 상승하거나하강하는곡선의 기울기를이용하여곡선의 일정한지점에서 전압을측정하도록구성하되,이온도입부 (120)에아무것도접촉되지 않은 상태의 전압값과이온도입부 (120)를피부에 접촉시킨상태의 전압값의차를 계산함으로써 ,피부수분값의오차를최소화하면서사용자피부의수분을 효율적으로측정할수있을뿐만아니라,사용자편의를제공하는것이 가능하다.
[81]
[82] 한편,본발명은도 15에도시된바와같이,휴대용피부미용기 ( 0)자체에서 사용자의 피부수분측정을안내하기 위한화면이출력되도록
디스플레이부 (140)가구비되는것도가능하다.이 경우,사용자단말기와별도로 통신하지 않고,휴대용피부미용기 (100)에서피부수분측정에관한안내부터 결과표시까지모두이루어지게되는데,디스플레이부 (140)에표시되는내용을 실행시키기거나,이온도입기능또는수분측정기능등을선택하는것이 가능하도록조작버튼 (150)이구비되는것이 바람직하다.
한편,상기디스플레이부 (140)에는터치스크린을적용하여조작가능하도록 구성하는것도가능할것이다.
[84]
[85] ]] 도면과명세서에서 최적실시 예들이 개시되었다.여기서특정한용어들이 90 31
788 사용되었으나,이는단지본발명을설명하기 위한목적에서사용된것이지
의미한정이나특허청구범위에기재된본발명의 범위를제한하기 위하여 사용된것은아니다.그러므로본기술분야의통상의지식을가진자라면 이로부터다양한변형 및균등한타실시 예가가능하다는점을이해할것이다. 따라서본발명의 진정한기술적보호범위는첨부된특허청구범위의기술적 사상에 의해정해져야할것이다.

Claims

2020/175842 1»（：1/10公020/002273 청구범위
[청구항 1] 하우징과,상기하우징내부에장착되어전원을공급하는전지와,상기 전지로부터출력되는전압을제어하며펄스（ ）형태의전압이 사용자의피부로인가되도록제어하는전압제어회로와,상기전지의두 개의전극중어느하나의전극에전기적으로연결되며상기하우징의 일단에위치하여사용자피부에접촉되는이온도입부와,상기전지의두 개의전극중나머지하나의전극에전기적으로연결되며상기하우징의 측면에위치하여사용자손이접촉되는손전극을포함하여사용자 피부에이온을도입하는휴대용피부미용기 ;및
상기휴대용피부미용기와통신하며,사용자의피부수분측정을 안내하기위한어플리케이션이설치되는사용자단말기;를포함하고, 상기휴대용피부미용기의이온도입부를통해피부로인가되는전압을 반복적으로충방전하는펄스（ ）신호의매주기마다전압이 상승하거나하강하는구간의곡선의기울기를이용하여곡선의일정한 지점에서전압을측정하도록구성하되,상기이온도입부에아무것도 접촉되지않은상태의기준전압값과이온도입부를피부에접촉시킨 상태의전압값의차를계산함으로써,사용자의피부수분량을 측정하도록구성되는것을특징으로하는휴대용피부미용기의 이온도입부를이용한피부수분측정시스템.
[청구항 2] 하우징과,상기하우징내부에장착되어전원을공급하는전지와,상기 전지로부터출력되는전압을제어하며펄스（ ）형태의전압이 사용자의피부로인가되도록제어하는전압제어회로와,상기전지의두 개의전극중어느하나의전극에전기적으로연결되며상기하우징의 일단에위치하여사용자피부에접촉되는이온도입부와,상기전지의두 개의전극중나머지하나의전극에전기적으로연결되며상기하우징의 측면에위치하여사용자손이접촉되는손전극을포함하여사용자 피부에이온을도입하는휴대용피부미용기에 있어서, 상기휴대용피부미용기의이온도입부를통해피부로인가되는전압을 반복적으로충방전하는펄스（ ）신호의매주기마다전압이 상승하거나하강하는구간의곡선의기울기를이용하여곡선의일정한 지점에서전압을측정하도록구성하되,상기이온도입부에아무것도 접촉되지않은상태의기준전압값과이온도입부를피부에접촉시킨 상태의전압값의차를계산함으로써,사용자의피부수분량을 측정하도록구성되며,
상기휴대용피부미용기에는사용자의피부수분측정을안내하기위한 화면및피부수분측정결과화면을표시하는디스플레이부가구비되는 것을특징으로하는휴대용피부미용기의이온도입부를이용한피부 2020/175842 1»（：1^1{2020/002273 수분측정시스템.
[청구항 3] 청구항 1또는 2에있어서,
사용자피부의수분을측정하는과정에서오차율을최소화하며최적의 피부수분측정값을얻기위한신뢰계수를산출하되,상기신뢰계수는 주파수출력프로그램에서주파수출력을위한기본정수입력값인 충방전시간에대한정수입력값（刀을 0내지 6으로차례대로설정한 상태에서아래의수학식에따라계산되는것을특징으로하는휴대용 피부미용기의이온도입부를이용한피부수분측정시스템.
Figure imgf000020_0001
（ 신뢰계수, 충방전시전압의최대값, 111：충방전시전압의최소값, 0： 측정전압의표준편차, I:충방전시소요되는시간）
[청구항 4] 청구항 3에있어서,
상기신뢰계수가가장높은값을최적의방전기울기로결정하고,상기 최적의방전기울기에해당하는충방전시간에대한정수입력값（刀에 매칭된주파수를추출하여저장하도록구성되는것을특징으로하는 휴대용피부미용기의이온도입부를이용한피부수분측정시스템.
[청구항 5] 청구항 4에있어서,
상기최적의방전기울기에해당하는충방전시간에대한정수
입력값（刀에매칭된주파수는 6~7낸¾며 ,상기사용자단말기에설치된 어플리케이션을통해피부수분측정기능을선택시,상기전압제어회로의 제어에의해 6~7반 의주파수가펄스형태출력되도록구성되는것을 특징으로하는휴대용피부미용기의이온도입부를이용한피부수분 측정시스템.
PCT/KR2020/002273 2019-02-26 2020-02-18 휴대용 피부미용기의 이온도입부를 이용한 피부 수분 측정 시스템 및 방법 WO2020175842A1 (ko)

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