WO2020175871A1 - 피부미용기의 테스트 시스템 - Google Patents

피부미용기의 테스트 시스템 Download PDF

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Publication number
WO2020175871A1
WO2020175871A1 PCT/KR2020/002617 KR2020002617W WO2020175871A1 WO 2020175871 A1 WO2020175871 A1 WO 2020175871A1 KR 2020002617 W KR2020002617 W KR 2020002617W WO 2020175871 A1 WO2020175871 A1 WO 2020175871A1
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WO
WIPO (PCT)
Prior art keywords
output
current
signal
voltage
frequency
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PCT/KR2020/002617
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English (en)
French (fr)
Inventor
윤영로
권혁용
김보람
한지호
Original Assignee
연세대학교 원주산학협력단
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Publication of WO2020175871A1 publication Critical patent/WO2020175871A1/ko

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/328—Applying electric currents by contact electrodes alternating or intermittent currents for improving the appearance of the skin, e.g. facial toning or wrinkle treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36014—External stimulators, e.g. with patch electrodes
    • A61N1/3603—Control systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/144—Measuring arrangements for voltage not covered by other subgroups of G01R15/14
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/146—Measuring arrangements for current not covered by other subgroups of G01R15/14, e.g. using current dividers, shunts, or measuring a voltage drop
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/255—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with counting of pulses during a period of time proportional to voltage or current, delivered by a pulse generator with fixed frequency

Definitions

  • the present invention is a skin beauty device that monitors by controlling the output of a skin beauty device.
  • test check, test
  • it is possible to visually check the actual energy output by controlling the output energy of the skin care product prototype that needs verification, monitoring the output energy value, and making the output energy value and manufacturing. It relates to a test system for a skin beauty device that enables the output of the skin beauty device to be verified through comparison with the output limit value specified in the electrical safety standard test standard conditions at the time.
  • Skin beauty devices powered by electric energy are some devices that are only used by experts such as doctors, but there are many skin beauty devices that are easily used by general families and are widely used. Since these skin care products use electro-physical properties, unexpected situations or skin damage such as skin scars and burns may occur during use.
  • Table 1 is an example of matters notified by the Korea Food and Drug Administration as a performance test.
  • the present invention controls the output energy of the skin beauty device prototype
  • the output of the skin beauty device is verified by comparing the output energy value with the output limit value specified in the electrical safety standard test standard conditions at the time of manufacture.
  • Korean Patent Publication No. 2001-0006008 uses the current to be measured as a voltage signal.
  • this current measurement method is used to measure the current flowing through the power terminal of Test 1 (:), and if this current value is greater than the specified value, it relates to 10 test equipment that determines that Test 1 (: is defective). .
  • the task to be solved by the present invention is the output of skin care products that require verification.
  • the output energy value is monitored, allowing the actual output energy to be visually checked, and the skin is compared with the output energy value specified in the electrical safety standard test standard conditions at the time of manufacture. It is to provide a skin beauty device test system that allows you to verify the output of the beauty device.
  • Another task to be solved by the present invention is to provide a skin beauty test system that detects the current, voltage and frequency of the circuit of the skin beauty device to be tested.
  • Another task to be solved by the present invention is to detect the current in the circuit of the skin care appliance, convert it to a voltage proportional to the size of the current in the circuit, and transmit it to the control unit, and the control unit A, it is to provide a skin beauty device test system that converts to the same size as the actual current signal and uses the current output signal of the circuit of the skin beauty device.
  • control unit includes an MCU with an interrupt input terminal (ie, an external interrupt pin), and inputs the voltage signal output from the circuit of the skin care device to the internal and external interrupt pins of the MCU. And, it is to provide a skin beauty test system that detects the frequency by counting the occurrence of interrupts per second through the AC component of this signal.
  • the present invention is a test of the skin beauty device of the present invention.
  • the system is a detection unit that detects the output current signal and output voltage signal of the skin beauty device from the output terminal of the skin beauty device for testing; the maximum output voltage signal from the output voltage signal and the output current signal of the skin beauty device received from the detection unit. And the maximum output current signal is obtained, the maximum output voltage signal is compared with a preset voltage threshold, and the maximum output voltage signal is greater than or equal to the voltage threshold, or the maximum joule current signal is compared with the preset current threshold, It characterized in that it comprises a; control unit, including an operation processing unit, which determines that the failure is not passed by text or sound and judges as'fail' when the current is greater than or equal to the current threshold.
  • [18] It includes the MCU (Micro Controller Unit) of the control unit, and the detection unit inputs the output voltage signal of the skin beauty device as a signal related to the output frequency of the skin beauty device to the external interrupt terminal of the MCU, and the skin is cut by the interrupt control unit of the MCU.
  • a line interrupt is generated according to the AC component of the output voltage of the beauty device, and the calculation processing unit makes the value of the interrupt counted in seconds as the output frequency of the skin beauty device.
  • the detection unit which is a means for detecting the output current signal of the skin beauty device
  • the current signal detection unit converts the detected string current signal of the skin beauty device into a voltage signal proportional to the output current signal of the skin beauty device using a current voltage converter and transmits it to the control unit.
  • the other end and the -output terminal of the skin care device includes a current-voltage conversion unit connected to the ground; an amplification unit in which the output of the current-voltage converter 112 is input and amplified.
  • the load resistance 1111 of the current signal detection unit is 5000 people.
  • the detection unit which is a means for detecting an output voltage signal of a skin beauty device
  • one end of the first resistor is connected to the + output terminal of the skin care device
  • one end of the second resistor is connected to the other end of the first resistor
  • the other end of the second resistor and the-output terminal of the skin care device are It is connected to ground
  • the connection point of the first resistance and the second resistance is connected to the + input terminal of the unit gain non-inverting amplifier
  • a load resistor 1127 is mounted between the output terminal of the unit gain non-inverting amplifier and ground.
  • the load resistance (1127) of the voltage signal detection unit is 500.
  • the calculation processing unit checks the maximum string power frequency from the skin power frequency of the skin beauty device,
  • the skin beauty device testing system of the present invention controls the output energy of the skin beauty device that needs verification, monitors the output energy value, and allows you to visually check the actual energy output, and the output energy value and manufacturing process. By comparing the output limit value specified in the electrical safety standard test standard conditions at the time, it is possible to verify the output of the skin beauty device.
  • the present invention the current, voltage of the circuit of the skin beauty device to be tested, and
  • the present invention detects a current in a circuit of a skin beauty device, converts it into a voltage proportional to the size of the current in the circuit and transmits it to the control unit, and the control unit has the size of the received voltage signal and the size of the actual current signal. By converting so that it is the same size as, the current output signal of the circuit of the skin care device is used, and a value closer to the current value actually output from the circuit of the skin care device is obtained.
  • the control unit includes an MCU with an external interrupt pin, and the voltage signal output from the circuit of the skin care device or the external interrupt pin in the MCU
  • the voltage signal converted from the current signal output from the skin care device circuit is input, and the frequency is detected by counting the occurrence of an interrupt per second through the AC component of these signals. That is, the frequency detection unit detects a simple and more accurate value.
  • FIG. 1 is a block diagram showing a schematic configuration of a test system for a skin beauty device of the present invention.
  • FIG. 3 shows an example of a voltage signal detector and a frequency signal detector of FIG. 1.
  • FIG. 4 is an explanatory diagram for explaining the operation when the A/D conversion unit of FIG. 1 is one channel.
  • Figure 5 shows the process of analyzing the output voltage signal of the skin beauty device in the calculation processing unit of Figure 1
  • FIG. 6 shows the process of analyzing the output current signal of the skin beauty device in the calculation processing unit of FIG. 1
  • FIG. 1 is a block diagram showing a schematic configuration of a test system for a skin beauty device of the present invention, a signal detection unit 100, a control unit 200, a key input unit (button) 310,
  • LCD display unit
  • LED light emitting unit
  • buzzer bu Z zer
  • the signal detection unit 100 includes a voltage signal detection unit 110, a current signal detection unit 120, and a frequency signal detection unit 130.
  • This voltage signal detection unit 110 is the output terminal of the skin beauty device to be tested, that is,
  • the voltage between the + output terminal (high side output terminal) and the-output terminal (low side output terminal) is detected and transmitted to the A/D conversion unit (ADC) of the control unit 200 as the output voltage of the skin care device.
  • ADC A/D conversion unit
  • the current signal detection unit 120 detects the current flowing through the output terminal of the skin beauty device to be tested, and converts the detected current through the current-voltage converter 111, that is, in proportion to the output current of the skin beauty device. Converted to voltage and
  • ADC A/D conversion unit
  • the frequency signal detection unit 130 is an output voltage of the voltage signal detection unit 110, that is,
  • the output voltage of the skin care device is input to the interrupt terminal of the MCU of the control unit 200 (that is, the external interrupt pin of the MCU).
  • the control unit 200 consists of a microcontroller unit (MCU), and the MCU
  • the operation processing unit 250 is from the current signal detection unit 120 through the show converter 210
  • the voltage signal proportional to the received skin care device's output current is converted to the same size as the actual current signal, and becomes the skin care device's output current signal.
  • the operation processing unit 250 is from the voltage signal detection unit 110 through the show converter 210
  • a line interrupt is generated according to the AC component of the output voltage of the input skin beauty device, and the operation processing unit 250 counts the generated interrupt in seconds, and the counted value is the output frequency of the skin beauty device.
  • the calculation processing unit 250 determines whether the output frequency signal of the skin beauty device is within a preset reference frequency threshold, and judges as failure (fail, 1) if it exceeds the reference frequency threshold.
  • the peak voltage i.e., the output maximum peak voltage of the skin beauty device
  • the joule force current (that is, the maximum joule force current of the skin beauty device) is checked and the maximum
  • the memory unit 270 stores a reference frequency threshold, a voltage threshold, a current threshold according to a frequency, and the like. These are stored at the time of shipment from the factory.
  • the memory unit may be included in the control unit 200.
  • the display unit 320 displays the current and voltage values on the screen during measurement, and when the measurement is completed, Display on the screen.
  • the light emitting part 330 is a failing shinny indicator, passing (passing, indicator, measuring
  • the power supply unit 500 includes a voltage signal detection unit 110, a current signal detection unit 120, a frequency signal
  • a switching regulator or the like may be provided.
  • test system for the skin beauty device of the present invention is
  • Safety is evaluated by comparing the safety standards with the measured values of skin care products.
  • the measured value is output to the display unit (eg, 1 ⁇ ).
  • a pass (PASS) indicator e.g., a light-emitting diode
  • PASS pass indicator
  • the FAIL indicator e.g., a light-emitting diode
  • the FAIL indicator outputs red to indicate that it has failed, indicating that the display has failed.
  • a buzzer sound is sounded to notify failure.
  • FIG. 2 is an example of a current signal detection unit of FIG. 1.
  • the current signal detection unit 120 uses a method of measuring a current value by inserting a shunt resistor in the middle of the current flowing and measuring a voltage drop occurring across the resistor.
  • the current signal detection unit 120 includes a current voltage conversion unit 111 and an amplification unit 116.
  • the current voltage converter 111 connect one end of the shunt resistor R12 and the + input end of the current voltage converter 112 to the + output terminal of the skin care device, and to the other end of the shunt resistor R12, load resistance (R11). ) And the -input terminal of the current-voltage converter 112 are connected, and the other end of the load resistor (R11) and the -output terminal of the skin care appliance are connected to the ground. Thereby, to the + input terminal and the negative input terminal of the current voltage converter 112, the voltage or current generated by the output voltage, the load resistance R11, and the shunt resistance R12 of the skin beauty device are input.
  • the current-to-voltage converter 111 is a commercially available current-to-voltage conversion device, and FIG. 2 shows that the high-side current sensing method is used.
  • the output terminal (Vout) of the current-to-voltage converter 112 is the current flowing through the load resistance R11. It is proportional to the product of (I RL ) and the shunt resistance (R12). High side
  • the current sensing method is a widely known method, so detailed explanations are omitted.
  • the shunt resistance (R12) can be 0.1Q
  • the load resistance (R11) is
  • the voltage output from the current voltage converter 112 is a voltage proportional to the output current of the skin care device.
  • the amplification unit 116 amplifies a voltage proportional to the output current of the skin care device. The amplified voltage is transmitted to the A/D converter 210.
  • FIG. 3 shows an example of a voltage signal detector and a frequency signal detector of FIG. 1.
  • the outputs of the voltage signal detection unit H0 and the frequency signal detection unit 130 are the same, and these outputs are different from those input to the control unit 200.
  • first resistor (R1) is connected to the + output terminal of the skin care device
  • second resistor (R2) is connected to the other end of the first resistor (R1)
  • second resistor (R2) is connected to the other end of the second resistor (R2) and
  • the -output terminal of the skin care device is connected to the ground.
  • the connection point between the first resistance (R1) and the second resistance (R2), It is connected to the + input terminal of the unit gain non-inverting amplifier ((unit gain) buffer, unit gain inverter, voltage follower) 151.
  • a load resistor (R27) is installed at the output terminal of the unit gain non-inverting amplifier 151. Load resistance (R27) is
  • the signal P is input to the A/D converter 220 is the output current signal of the skin beauty device,
  • the skin beauty device Since the output voltage signal of the skin beauty device is input, two A/D converters must be provided.In some cases, when a single A/D converter 220 is provided, as shown in FIG. 4, the skin beauty device in one sampling cycle By successively receiving the output current signal of and the output voltage signal of the skin care device, and having a time (delay time) to wait for the next sampling cycle to arrive, the A/D converter of one channel has two signals, that is, the skin care device. The output current signal of and the output voltage signal of the skin care device can be simultaneously converted from an analog signal to a digital signal.
  • Figure 5 shows the process of analyzing the output voltage signal of the skin beauty device in the calculation processing unit of Figure 1
  • the calculation processing unit 250 uses the A/D converter 220
  • the output voltage signal is stored as the maximum output voltage (S120).
  • the calculation processing unit 250 determines whether the maximum peak voltage is less than the preset voltage threshold (S130), and if it is less than the voltage threshold, returns to the maximum joule voltage update step and returns to the next skin It receives and analyzes the power voltage signal of the beauty device.
  • Figure 6 shows the process of analyzing the output voltage flow signal of the skin beauty device in the operation processing unit of Figure 1
  • the operation processing unit 250 is A/D from the current signal detection unit 120
  • a voltage signal proportional to the output current of the skin beauty device received through the converter 210 is received (S210).
  • the calculation processing unit 250 is used for the skin beauty device received in the signal receiving step.
  • the output current signal is converted to the previously stored maximum output current.
  • the Joule current signal is stored as the maximum Joule current (S220).
  • the calculation processing unit 250 determines whether the maximum output current is less than the preset current threshold (S230), and if it is less than the current threshold, returns to the signal reception step, and the next skin care It receives and analyzes the output current signal of the device.
  • the display unit (LCD) 320, the light emitting unit (LED) 330 failing (FAIL) indicator If it is greater than or equal to the threshold, it is judged as failing, and the display unit (LCD) 320, the light emitting unit (LED) 330 failing (FAIL) indicator,
  • Figure 7 shows the process of analyzing the output frequency of the skin beauty device in the calculation processing unit of Figure 1
  • the string power frequency signal is compared with the previously stored maximum frequency, and if it is greater than the maximum frequency, the string power frequency signal is stored as the maximum frequency (S330).
  • the calculation processing unit 250 determines whether the maximum frequency is less than the preset frequency threshold (S350), and if it is less than the frequency threshold, returns to the output frequency calculation step, and the next skin Lets calculate the output frequency signal of the beauty device.
  • the skin beauty device test system of the present invention () 2020/175871 1»(:1/10 ⁇ 020/002617 It can be used for the performance test of skin beauty devices by certification or inspection organizations, and can also be used for the performance test of skin beauty devices being developed by skin beauty device manufacturers.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
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  • Power Engineering (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
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  • Plastic & Reconstructive Surgery (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

본 발명은, 피부미용기의 출력 제어하여 모니터링하는 피부미용기 테스트 시스템에 관한 것으로, 검증이 필요한 피부미용기 시제품의 출력 에너지를 제어하면서, 그 출력 에너지값을 모니터링하여, 실제 출력되는 에너지를 가시적으로 확인할 수 있게 하며, 출력되는 에너지값과 제조 당시 전기적 안전성 표준 시험규격 조건에서 명시된 출력 제한 값과의 비교를 통해, 상기 피부미용기의 출력을 검출할 수 있게 하는, 피부미용기의 테스트 시스템에 관한 것이다.

Description

() 2020/175871 1»(：1/10公020/002617 명세서
발명의명칭:피부미용기의 테스트시스템 기술분야
[1] 본발명은,피부미용기의출력제어하여모니터링하는피부미용기
테스트（점검,시험）시스템에관한것으로,검증이필요한피부미용기시제품의 출력에너지를제어하면서，그출력에너지값을모니터링하여,실제출력되는 에너지를가시적으로확인할수있게하며,출력되는에너지값과제조당시 전기적안전성표준시험규격조건에서명시된출력제한값과의비교를통해, 상기피부미용기의출력을검증할수있게하는,피부미용기의테스트시스템에 관한것이다.
배경기술
[2] 일반적으로피부마사지기는수동마사지기,진동마사지기,이온마사지기등이 있다.
[3] 피부마사지기중에는단순히제품을손으로잡고문지르는등의방법으로
마사지하는기기도있지만,전기에너지로작동되는미용기기가주류를이룬다.
[4] 전기에너지로작동되는피부미용기（설명의편의상’피부미용기’라칭함）는 의사등의전문가에의해서만사용되는기기도있지만,일반가정에서도손쉽게 사용되는피부미용기가많이 있으며,널리사용되고있다.이러한피부미용기는 전기물리적특성을이용하므로,사용중에 예기치않은상황이나피부흉터및 화상등피부손상을초래할수있다.
[5] 따라서전압,전류,주파수에대해,법으로,출력안전규격이정해져 있다.
[6] 표 1은식품의약품안전청에서성능에관한시험으로공지하고있는사항의 일예이다.
() 2020/175871 1»(：1/10公020/002617
[7] [표 1]
Figure imgf000003_0001
Figure imgf000003_0005
Figure imgf000003_0002
Figure imgf000003_0003
Figure imgf000003_0004
[8] 무엇보다도,피부미용기에서출력되는전기적에너지가실제피부에
인가되었을때피부손상이발생될우려가있는지에대한안전성을검증이 필요하다.
[9] 본발명은,피부미용기시제품의출력에너지를제어하면서，그출력
에너지값을모니터링하여,실제출력되는에너지를가시적으로확인할수있게 하며 ,또한,출력되는에너지값과제조당시전기적안전성표준시험규격 조건에서명시된출력제한값과의비교를통해,상기피부미용기의출력을 검증할수있는,피부미용기테스트시스템을제안한다.
[1이 피부미용기의안전점검에대한선행기술은검색되지않았다.일반적인회로 또는회로소자를점검하는테스트장치에관한선행기술은다수개검색되었다.
[11] 선행기술로,국내공개특허 2001-0006008호는피측정전류를전압신호로
변환하고,이전압신호에의하여광변조기를투과하는광을위상변조하고,그 위상변조한광과위상변조되지않는광을간섭시켜간섭광을얻고,그간섭광의 강도에의하여피측정전류를측정하는전류측정방법으로서 ,이전류측정방법을 사용하여,피시험 1（：의전원단자에흐르는전류를측정하고,이전류치가규정치 보다큰경우는그피시험 1（：를불량으로판정하는 10시험장치에관한것이다.
[12] 국내공개특허 2001-0006008호는전류측정방법이광변조기를필요로하며 복잡한과정을거치므로,하나의 1（：로이루어진것이아니라,다수개의회로 소자가모여서이루어진피부미용기에서는,이러한측정방법을사용하기 어렵다.또한,국내공개특허 2001-0006008호에서는주파수를검출하지않는다. 발명의상세한설명
기술적과제
[13] 본발명이해결하고자하는과제는,검증이필요한피부미용기의출력
에너지를제어하면서，그출력에너지값을모니터링하여,실제출력되는 에너지를가시적으로확인할수있게하며,출력되는에너지값과제조당시 전기적안전성표준시험규격조건에서명시된출력제한값과의비교를통해, 상기피부미용기의출력을검증할수있게하는,피부미용기테스트시스템을 제공하는것이다.
[14] 본발명이해결하고자하는다른과제는,테스트대상이되는,피부미용기의 회로의전류,전압그리고주파수를검출하는,피부미용기테스트시스템을 제공하는것이다.
[15] 본발명이해결하고자하는또다른과제는,피부미용기의회로에서전류를 검출하고,상기회로의전류의크기에비례하는전압으로변환하여제어부로 전송하며,제어부는수신된전압신호의크기가,실제전류신호의크기와같은 크기가되도록환산하여,피부미용기의회로의전류출력신호로하는, 피부미용기테스트시스템을제공하는것이다.
[16] 본발명이해결하고자하는또다른과제는,제어부는인터럽트입력단자 (즉, 외부인터럽트핀)를가진 MCU를포함하며, MCU내외부인터럽트핀에, 피부미용기의회로에서출력된전압신호를입력하고,이신호의교류성분을 통해초당인터럽트발생을카운트하여주파수를검출하는,피부미용기테스트 시스템을제공하는것이다.
과제해결수단
[17] 본발명은상기과제를해결하기위해,본발명의피부미용기의테스트
시스템은,테스트를하기위한피부미용기의출력단으로부터,피부미용기의 출력전류신호및출력전압신호를검출하는,검출부;검출부로부터수신된 피부미용기기의출력전압신호및출력전류신호에서,최대출력전압신호및 최대출력전류신호를구하고,최대출력전압신호를기설정된전압문턱치와 비교하여최대출력전압신호가전압문턱치보다크거나같은경우,또는최대 줄력전류신호를기설정된전류문턱치와비교하여최대줄력전류신호가전류 문턱치보다크거나같은경우에,’불합격 (fail)’으로판단하고문자나음향으로 불합격임을알리게하는연산처리부를포함하는,제어부;를포함하는것을 특징으로한다.
[18] 제어부의 MCU(Micro Controller Unit)를포함하며 ,검출부는,피부미용기의 출력주파수관련신호로서피부미용기의출력전압신호를, MCU의외부 인터럽트단자에입력하고, MCU의인터럽트제어부에의해피부미용기의 출력전압의교류성분에따라인터럽트를발생하며,연산처리부는,상기 인터럽트를초단위로카운트한값을,피부미용기의출력주파수로한다. 2020/175871 1»（：1^1{2020/002617
[19] 검출부에서,피부미용기의출력전류신호를검출하는수단인,
전류신호검줄부는,검줄된피부미용기의줄력전류신호를,전류전압변환기를 이용하여,피부미용기의출력전류신호에비례하는전압신호로변환하여, 제어부로전송한다.
[2이 전류신호검출부는,피부미용기의 +출력단에션트저항 (1112)의일단및
전류전압변환기 (112)의 +입력단을연결하고,션트저항 (1112)의다른일단에, 부하저항 (1111)의일단및전류전압변환기 (112)의 -입력단을연결하며, 부하저항 (1111)의다른일단및피부미용기의 -출력단은접지에연결된, 전류전압변환부;전류전압변환기 (112)의출력이입력되어증폭되는,증폭부;를 포함한다.
[21] 전류신호검출부의부하저항 (1111)은 5000인이다.
[22] 검출부에서,피부미용기의출력전압신호를검출하는수단인,
전압신호검출부는,,피부미용기의 +출력단에제 1저항의일단이연결되며, 제 1저항의다른일단에제 2저항의일단이연결되며,제 2저항의다른일단및 피부미용기의 -출력단은접지로연결되며,제 1저항과제 2저항의연결점이, 유니트게인비반전증폭기의 +입력단에연결되며,유니트게인비반전 증폭기의출력단과접지사이에부하저항 (1127)이장착된다.
[23] 전압신호검출부의부하저항 (1127)은 500 이다.
[24] 연산처리부는,피부미용기의줄력주파수에서최대줄력주파수를검줄하고,
[25] 최대출력주파수가기설정된주파수문턱치와비교하여최대출력주파수 신호가주파수문턱치보다크거나같은경우에 ,’불합격 1)’으로판단하고 문자나음향으로불합격임을알리게한다.
발명의효과
[26] 본발명의피부미용기테스트시스템은,검증이필요한피부미용기의출력 에너지를제어하면서，그출력에너지값을모니터링하여 ,실제출력되는 에너지를가시적으로확인할수있게하며 ,출력되는에너지값과제조당시 전기적안전성표준시험규격조건에서명시된출력제한값과의비교를통해, 상기피부미용기의출력을검증할수있게한다.
[27] 본발명은,테스트대상이되는,피부미용기의회로의전류,전압그리고
주파수를검출하여출력안전규격내에 있는지를점검한다.
[28] 본발명은,피부미용기의회로에서전류를검출하고,상기회로의전류의 크기에비례하는전압으로변환하여제어부로전송하며,제어부는수신된 전압신호의크기가,실제전류신호의크기와같은크기가되도록환산하여 , 피부미용기의회로의전류출력신호로하여,피부미용기의회로에서실제 출력된전류치에보다가까운값을얻는다,
[29] 본발명에서제어부는외부인터럽트핀을가진 MCU를포함하며 , MCU내 외부인터럽트핀에,피부미용기의회로에서출력된전압신호또는 피부미용기의회로에서출력된전류신호를변환한전압신호를입력하고,이들 신호의교류성분을통해초당인터럽트발생을카운트하여주파수를검출한다. 즉,주파수검출부가간단하면서보다정확한값을검출한다.
도면의간단한설명
[3이 도 1은본발명의피부미용기의테스트시스템의개략적인구성을나타내는 블럭도이다.
[31] 도 2는도 1의전류신호검출부의일예이다.
[32] 도 3은도 1의전압신호검출부및주파수신호검출부의일예를나타낸다.
[33] 도 4는도 1의 A/D변환부가 1채널일경우의동작을설명하는설명도이다.
[34] 도 5는도 1의연산처리부에서피부미용기의출력전압신호분석과정을
개략적으로설명하는흐름도이다.
[35] 도 6은도 1의연산처리부에서피부미용기의출력전류신호분석과정을
개략적으로설명하는흐름도이다.
[36] 도 7은도 1의연산처리부에서피부미용기의출력주파수분석과정을
개략적으로설명하는흐름도이다.
발명의실시를위한형태
[37] 이하,본발명의피부미용기의테스트시스템을첨부된도면을참조하여
상세히설명한다.
[38] 도 1은본발명의피부미용기의테스트시스템의개략적인구성을나타내는 블럭도로,신호검출부 (100),제어부 (200,키입력부 (button)(310),
디스플레이부 (LCD)(320),발광부 (LED)(330),부저 (buZzer)(350),전원부 (500)를 포함한다,
[39] 신호검출부 (100)는전압신호검출부 (110),전류신호검출부 (120),주파수신호 검출부 (130)을포함한다.
[4이 전압신호검출부 (110)는테스트를받고자하는피부미용기의출력단,즉,
+출력단 (high side출력단)과 -출력단 (low side출력단)의사이의전압을검출하여 피부미용기의출력전압으로써,제어부 (200)의 A/D변환부 (ADC)로전송한다.
[41] 전류신호검출부 (120)는테스트를받고자하는피부미용기의출력단에흐르는 전류를검출하고,검출된전류를전류-전압변환기 (111)를통해전압,즉, 피부미용기의출력전류에비례하는전압으로변환하여제어부 (200)의
A/D변환부 (ADC)로전송한다.
[42] 주파수신호검출부 (130)는전압신호검출부 (110)의출력전압,즉,
피부미용기의출력전압을,제어부 (200)의 MCU의인터럽트단자 (즉, MCU의 외부인터럽트핀)로입력한다.
[43] 제어부 (200)는 MCU(Micro Controller Unit)로이루어지며 , MCU는
연산처리부 (250), A/D변환기 (210),인터럽트제어부 (220)을포함하며, 피부미용기의테스트시스템의전반적인제어를담당한다. 2020/175871 1»（：1^1{2020/002617
[44] 연산처리부 (250)는전류신호검출부 (120)로부터쇼 변환기 (210)를통해
수신된피부미용기의출력전류에비례하는전압신호를,실제전류신호의 크기와같은크기가되도록환산하여 ,피부미용기의출력전류신호로한다.
[45] 연산처리부 (250)는전압신호검출부 (110)로부터쇼 변환기 (210)를통해
피부미용기의출력전압을수신한다.
[46] 인터럽트제어부 (220)는,주파수신호검출부 (130)로부터인터럽트단자로
입력된피부미용기의출력전압의교류성분에따라인터럽트를발생하며,이 발생된인터럽트를연산처리부 (250)가초단위로카운트하여,그카운트된값을, 피부미용기의출력주파수로한다.
[47] 연산처리부 (250)는피부미용기의출력주파수신호가,기설정된기준주파수 문턱치이내인지를판단하고,기준주파수문턱치를초과할경우불합격 (실패 , 1)으로판단한다.
[48] 또한,연산처리부 (250)는,피부미용기의출력전압신호들중에서최대
피크전압 (즉,피부미용기의출력최대피크전압)을검출하고,최대피크전압이, 기설정된전압문턱치이내인지를판단하고,전압문턱치을초과할경우 불합격 1)으로판단한다.
[49] 또한,연산처리부 (250)는,피부미용기의줄력전류신호들중에서최대
줄력전류 (즉,피부미용기의줄력최대줄력전류)을검줄하고,최대
출력전류신호가,기설정된주파수에따른전류문턱치를초과하는지를 판단하고,초과할경우불합격 1)으로판단한다.
[5이 메모리부 (270)는기준주파수문턱치,전압문턱치,주파수에따른전류문턱치 등등이저장되어있다.이는공장출하시저장되어 있다.경우에따라서
메모리부는제어부 (200)에포함되어있을수있다.
[51] 디스플레이부 (320)는측정중에는전류및전압의값에대해화면에표시하며, 측정이끝나면
Figure imgf000007_0001
화면으로표시한다.
[52] 발광부 (330)는불합격 시니표시기，합격 (통과, 표시기，측정중
표시기를구비하며 ,측정중,합격 ,불합격에따라서서로다른색으로발광한다.
Figure imgf000007_0002
출력하거나불합격 만알림음을출력할수있다.
[54] 전원부 (500)는전압신호검출부 (110),전류신호검출부 (120),주파수신호
검출부 (130),제어부 (200)등에전원을공급하는수단이다.전압신호
검출부 (110),전류신호검출부 (120),주파수신호검출부 (130),제어부 (200)별로 그에맞는소정의전원전압을생성하기위해,스위칭레귤레이터등을구비할 수있다.
[55] 본발명의피부미용기의테스트시스템은메모리부에기저장된전기적
안전규격과,피부미용기의측정값을비교하여,안전성을평가한다.
[56] 본발명에서측정중에，디스플레이부 (예로 1乂正))에측정된값출력을
출력하며,측정중표시기 (예로발광다이오드)로노란색을표시하여측정중임을 () 2020/175871 1»(：1/10公020/002617 나타낸다.
만약,측정이끝나고,측정된전류,전압,주파수가전기적 안전규격 범위내에 있을때에는합격 (PASS)표시기 (예로발광다이오드)로초록색을출력하여, 합격되었음을나타내며 ,디스플레이부에서도합격되었음을출력한다.
[58] 만약,측정이끝나고,측정된전류,전압,주파수가전기적 안전규격 범위밖에 있을때에는불합격 (FAIL)표시기 (예로발광다이오드)로빨강색을출력하여, 불합격되었음을나타내며 ,디스플레이부로도불합격되었음을알리며 ,동시에 부저 (buzzer sound)를울려불합격를알린다.
도 2는도 1의 전류신호검출부의 일예이다.
전류신호검출부 (120)는전류가흐르는중간에션트저항을넣고저항양단에 발생하는전압강하를측정해서 전류값을측정하는방법을사용한다.
[6 전류신호검출부 (120)는전류전압변환부 (111),증폭부 (116)을포함한다.
전류전압변환부 (111)에서,피부미용기의 +출력단에 션트저항 (R12)의 일단및 전류전압변환기 (112)의 +입력단을연결하고,션트저항 (R12)의다른일단에, 부하저항 (R11)의 일단및전류전압변환기 (112)의 -입력단을연결하며, 부하저항 (R11)의다른일단및피부미용기의 -출력단은접지에 연결된다. 그럼에 의해,전류전압변환기 (112)의 +입력단및 -입력단에는,피부미용기의 출력전압,부하저항 (R11),션트저항 (R12)에 의해생성된전압또는전류가 입력된다.전류전압변환기 (112)의 +입력단및 -입력단에는.션트저항 (R12)의 양단에 발생하는전압이,피부미용기의출력전류신호로서,입력될수있다. 전류전압변환부 (111)는시판되는전류전압변환소자로,도 2는 High side current sensing방식을사용한것을나타낸다.전류전압변환기 (112)의출력단 (Vout)은, 부하저항 (R11)에흐르는전류 (IRL)과션트저항 (R12)의곱에 비례한다. High side
] ] current sensing방식은널리 공지된방식으로자세한설명은생략한다.
9 o
556 6 6 6724711 (https://www.analog.com/jp/analog-dialogue/raqs/raq-issue-151.html,
https://www.analog.com/jp/design-center/
reference-designs/circuit-collections/2-7v-to-5-5v-precision-current-sense.html)
[63] 여기서션트저항 (R12)은 0.1Q일수있으며,부하저항 (R11)은
식품의약품안전청에서성능시험에관한규정에따라 500Q이다.전류전압 변환기 (112)에서출력된전압은,피부미용기의출력전류에 비례하는전압이다. 증폭부 (116)에서 피부미용기의출력전류에 비례하는전압을증폭한다.이렇게 증폭된전압은 A/D변환기 (210)으로전송된다.
[65] 도 3은도 1의 전압신호검출부및주파수신호검출부의 일예를나타낸다.
[66] 본발명에서는전압신호검출부 (H0)와주파수신호검출부 (130)의출력은 같으며,이들출력이제어부 (200)에 입력되는부분이다르다.
피부미용기의 +출력단에 제 1저항 (R1)의 일단이 연결되며,제 1저항 (R1)의다른 일단에 제 2저항 (R2)의 일단이 연결되며,제 2저항 (R2)의다른일단및피부 미용기의 -출력단은접지로연결된다.제 1저항 (R1)과제 2저항 (R2)의 연결점이, 유니트게인비반전증폭기 ((유니트게인)버퍼,유니트게인인버터,전압 팔로워) (151)의 +입력단에연결된다.유니트게인비반전증폭기 (151)의 출력단에부하저항 (R27)이장착되어있다.부하저항 (R27)은
식품의약품안전청에서성능시험에관한규정에따라 500Q이다.
[68] 다시말해,피부미용기의 +출력단에서출력된피부미용기의출력전압이
버퍼를통해 A/D변환기 (220)로전달된다.
[69] 또한,피부미용기의 +출력단에서출력된피부미용기의출력전압이,
피부미용기의출력주파수신호로서버퍼를통해 MCU의인터럽트단자로 전달된다..
P이 A/D변환기 (220)로입력되는신호는,피부미용기의출력전류신호와,
피부미용기의출력전압신호가입력되므로 , 2개의 A/D변환기를구비해야한다, 경우에따라서, 1개의 A/D변환기 (220)를구비한경우에는,도 4와같이, 1샘플링 주기에서피부미용기의출력전류신호와,피부미용기의출력전압신호를 연달아서수신하고,도래하는다음샘플링주기까지기다리는시간 (delay 시간)을갖도록함으로써 , 1채널의 A/D변환기로 , 2개의신호,즉,피부미용기의 출력전류신호와,피부미용기의출력전압신호를,동시에아날로그신호에서 디지탈신호로변환할수있다.
1] 도 5는도 1의연산처리부에서피부미용기의출력전압신호분석과정을
개략적으로설명하는흐름도이다.
2] 최대출력전압갱신단계로,연산처리부 (250)는 A/D변환기 (220)을통해
피부미용기기의출력전압신호를수신하고 (S110),수신된출력전압신호를, 기저장된최대출력전압과비교하여,최대출력전압보다크다면,
출력전압신호를최대출력전압으로서저장한다 (S120).
3] 전압문턱치와의비교단계로,연산처리부 (250)는,최대피크전압이,기설정된 전압문턱치보다작은지를판단하고 (S130),전압문턱치보다작다면,최대 줄력전압갱신단계로되돌아가다음피부미용기기의줄력전압신호를수신하여 분석하게한다.
4] 불합격알림단계로,전압문턱치와의비교단계에서 ,최대피크전압이전압 문턱치보다크거나같을경우불합격 (foil)로판단하여 ,불합격 (fail)임을 디스플레이부 (LCD)(320),발광부 (LED)(330)의불합격 (FAIL)표시기 , 부저 (buzzer)(350)를통해알린다 (S150).
5] 도 6은도 1의연산처리부에서피부미용기의출력전압류신호분석과정을
개략적으로설명하는흐름도이다.
6] 신호수신단계로,연산처리부 (250)는전류신호검출부 (120)로부터 A/D
변환기 (210)를통해수신된피부미용기의출력전류에비례하는전압신호를 수신한다 (S210).
7] 환산단계로,연산처리부 (250)는신호수신단계에서수신된피부미용기의
출력전류에비례하는전압신호를,실제전류신호의크기와같은크기가되도록 환산하여,피부미용기의출력전류신호로한다 (S215).
8] 최대출력전류갱신단계로,출력전류신호를,기저장된최대출력전류과
비교하여，최대줄력전류보다크다면,줄력전류신호를최대줄력전류로서 저장한다 (S220).
9] 전류문턱치와의비교단계로,연산처리부 (250)는,최대출력전류가,기설정된 전류문턱치보다작은지를판단하고 (S230),전류문턱치보다작다면, 신호수신단계로되돌아가,다음피부미용기기의출력전류신호를수신하여 분석하게한다.
[8이 불합격알림단계로,전류문턱치와의비교단계에서,최대출력전류가전류
문턱치보다크거나같을경우불합격 (foil)로판단하여 ,불합격 (fail)임을 디스플레이부 (LCD)(320),발광부 (LED)(330)의불합격 (FAIL)표시기 ,
부저 (buzzer)(350)를통해알린다 (S250).
[81] 도 7은도 1의연산처리부에서피부미용기의출력주파수분석과정을
개략적으로설명하는흐름도이다.
[82] 출력주파수연산단계로,출력주파수검출부 (120)로부터 MCU의외부인터럽트 핀에입력되면 (S310),인터럽트제어부 (220)는,주파수신호검출부 (130)로부터 인터럽트단자로입력된피부미용기의출력전압의교류성분에따라인터럽트를 발생하며,이발생된인터럽트를연산처리부 (250)가초단위로카운트하여,그 카운트된값을,피부미용기의출력주파수로한다 (S320).
[83] 최대주파수갱신단계로,줄력주파수신호를,기저장된최대주파수와비교하여 , 최대주파수보다크다면,줄력주파수신호를최대주파수로서저장한다 (S330).
[84] 주파수문턱치와의비교단계로,연산처리부 (250)는,최대주파수가,기설정된 주파수문턱치보다작은지를판단하고 (S350),주파수문턱치보다작다면, 출력주파수연산단계로되돌아가,다음피부미용기기의출력주파수신호를 연산하게한다.
[85] 불합격알림단계로,주파수문턱치와의비교단계에서 ,최대주파수가주파수 문턱치보다크거나같을경우불합격 (foil)로판단하여 ,불합격 (fail)임을 디스플레이부 (LCD)(320),발광부 (LED)(330)의불합격 (FAIL)표시기 ,
부저 (buzzer)(350)를통해알린다 (S360).
[86] 이상과같이본발명은비록한정된실시예와도면에의해설명되었으나,본 발명은상기의실시예에한정되는것은아니며,이는본발명이속하는분야에서 통상의지식을가진자라면이러한기재로부터다양한수정및변형이가능하다. 따라서 ,본발명의사상은아래에기재된특허청구범위에의해서만파악되어야 하고,이의균등또는등가적변형모두는본발명사상의범주에속한다고할 것이다.
산업상이용가능성
[87] 본발명의피부미용기테스트시스템은,식품의약품안전청등피부미용기의 () 2020/175871 1»(：1/10公020/002617 인증또는검사기관에서피부미용기의성능검사시에이용할수있으며,또한, 피부미용기제조사가개발중인피부미용기의성능검사에이용할수있다.
[88]

Claims

() 2020/175871 1»(：1/10公020/002617 청구범위
[청구항 1] 테스트를하기위한피부미용기의출력단으로부터,피부미용기의
출력전류신호및출력전압신호를검출하는,검출부;
검출부로부터수신된피부미용기기의출력전압신호및출력전류신호를 디지탈신호로변환하는 A/D변환기 ;
A/D변환기로부터수신된피부미용기기의출력전압신호및출력전류 신호에서,최대출력전압신호및최대출력전류신호를구하고,최대 출력전압신호를기설정된전압문턱치와비교하여최대출력전압신호가 전압문턱치보다크거나같은경우,또는최대출력전류신호를기설정된 전류문턱치와비교하여최대줄력전류신호가전류문턱치보다크거나 같은경우에,’불합격 (fail)’으로판단하고문자나음향으로불합격임을 알리게하는연산처리부를포함하는,제어부;
를포함하는것을특징으로하는,피부미용기의테스트시스템.
[청구항 2] 제 1항에 있어서,
제어부는 MCU(Micro Controller Unit)를포함하며 ,
검줄부는,피부미용기의줄력주파수관련신호로서피부미용기의 출력전압신호를, MCU의외부인터럽트단자로전송하고,
MCU의인터럽트제어부에의해,피부미용기의출력전압의교류성분에 따라인터럽트를발생하며,연산처리부는,상기인터럽트를초단위로 카운트한값을,피부미용기의출력주파수로하는것을특징으로하는, 피부미용기의테스트시스템.
[청구항 3] 제 2항에 있어서,
검출부에서,피부미용기의출력전류신호를검출하는수단인, 전류신호검출부는,검출된피부미용기의출력전류신호를,전류전압 변환기를이용하여,피부미용기의출력전류신호에비례하는전압신호로 변환하여, A/D변환기로전송하는것을특징으로하는,피부미용기의 테스트시스템.
[청구항 4] 제 3항에 있어서,
전류신호검줄부는,
피부미용기의 +출력단에션트저항 (R12)의일단및전류전압
변환기 (112)의 +입력단을연결하고,션트저항 (R12)의다른일단에, 부하저항 (R11)의일단및전류전압변환기 (112)의 -입력단을연결하며, 부하저항 (R11)의다른일단및피부미용기의 -출력단은접지에연결된, 전류전압변환부;
전류전압변환기 (112)의출력이입력되어증폭되는,증폭부;
를포함하는것을특징으로하는,피부미용기의테스트시스템.
[청구항 5] 제 4항에 있어서 2020/175871 1»（：1^1{2020/002617 부하저항 (1111)은 5000인것을특징으로하는,피부미용기의테스트 시스템.
［청구항 6］ 제 3항에있어서,
검출부에서,피부미용기의출력전압신호를검출하는수단인, 전압신호검출부는,
피부미용기의 +출력단에제 1저항의일단이연결되며,제 1저항의다른 일단에제 2저항의일단이연결되며,제 2저항의다른일단및피부 미용기의 -출력단은접지로연결되며,제 1저항과제 2저항의연결점이, 유니트게인비반전증폭기의 +입력단에연결되며,유니트게인비반전 증폭기의출력단과접지사이에부하저항 (1127)이장착되는것을특징으로 하는,피부미용기의테스트시스템.
［청구항 7］ 제 6항에있어서,
부하저항 (1127)은 5000인것을특징으로하는,피부미용기의테스트 시스템.
［청구항 8］ 제 2항에있어서,
연산처리부는,피부미용기의출력주파수에서최대출력주파수를 검출하고,
최대출력주파수가기설정된주파수문턱치와비교하여최대
출력주파수신호가주파수문턱치보다크거나같은경우에 ,
’불합격與¾’으로판단하고문자나음향으로불합격임을알리게하는 것을특징으로하는,피부미용기의테스트시스템.
［청구항 9］ 제 6항에있어서,
쇼 변환기는, 1개를구비하되, 1샘플링주기동안에,
전류신호검줄부에서줄력된피부미용기의줄력전류신호와,
전압신호검출부에서출력된피부미용기의출력전압신호를연달아서 샘플링하는것을특징으로하는,피부미용기의테스트시스템.
［청구항 ］ 테스트를하기위한피부미용기의출력단으로부터,피부미용기의
출력전류신호및출력전압신호를검출하는검출부;검출부로부터 수신된피부미용기기의출력전압신호와전압문턱치를비교하고, 검줄부로부터수신된피부미용기기의줄력전류신호와전류문턱치를 비교하여,테스트의합격여부를판단하는연산처리부를구비하는 제어부;를포함하는피부미용기의테스트시스템의구동방법에있어서, 연산처리부는검출부로부터수신된피부미용기기의출력전압신호를, 기저장된최대출력전압과비교하여,최대출력전압보다크다면, 출력전압신호를최대출력전압으로서저장하는,최대출력전압 갱신단계;
연산처리부는,최대피크전압이 ,기설정된전압문턱치보다작은지를 판단하고,전압문턱치보다작다면,최대출력전압갱신단계로 WO 2020/175871 PCT/KR2020/002617 되돌아가는,전압문턱치와의비교단계 ;
전압문턱치와의비교단계에서,최대피크전압이전압문턱치보다 크거나같을경우,연산처리부는불합격 (fail)으로판단하여, 불합격 (fail)임을디스플레이부 (LCD)또는발광부 (LED)로표시하거나, 부저 (buzzer)를통해알리는,전압불합격알림단계 ;
를포함하는것을특징으로하는,피부미용기의테스트시스템의 구동방법.
[청구항 11] 제 W항에 있어서,
연산처리부는검출부로부터피부미용기의출력전류에비례하는전압 신호를수신하고,수신된피부미용기의출력전류에비례하는전압 신호를,실제전류신호의크기와같은크기가되도록환산하여 , 피부미용기의출력전류신호로하는,환산단계;
연산처리부는,출력전류신호를,기저장된최대출력전류과비교하여 , 최대줄력전류보다크다면,줄력전류신호를최대줄력전류로서 저장하는,최대줄력전류갱신단계;
연산처리부는,최대줄력전류가,기설정된전류문턱치보다작은지를 판단하고,전류문턱치보다작다면,환산단계로되돌아가는,전류 문턱치와의비교단계;
연산처리부는,전류문턱치와의비교단계에서,최대줄력전류가전류 문턱치보다크거나같을경우불합격 (fail)으로판단하여 ,불합격 (fail)임을 디스플레이부 (LCD)또는발광부 (LED)로표시하거나,부저 (buzzer)를 통해알리는,전류불합격알림단계;
를포함하는것을특징으로하는,피부미용기의테스트시스템의 구동방법.
[청구항 12] 제 11항에 있어서,
제어부는외부인터럽트단자와인터럽트제어부를포함하는 MCU(Micro Controller Unit)로이루어지며 , MCU의외부인터럽트단자에 ,
검출부로부터피부미용기의출력전압신호가전달되면,인터럽트 제어부는피부미용기의출력전압의교류성분에따라인터럽트를 발생하며,발생된인터럽트횟수를연산처리부가초단위로카운트하여, 피부미용기의출력주파수로하는,출력주파수연산단계; 연산처리부는,출력주파수신호를,기저장된최대주파수와비교하여 , 최대주파수보다크다면,줄력주파수신호를최대주파수로서저장하는, 최대주파수갱신단계;
연산처리부는,최대주파수가,기설정된주파수문턱치보다작은지를 판단하고,주파수문턱치보다작다면,출력주파수연산단계로되돌아가, 다음피부미용기기의출력주파수신호를연산하게하는,주파수 문턱치와의비교단계; 주파수문턱치와의비교단계에서 ,최대주파수가주파수문턱치보다 크거나같을경우불합격 (fail)로판단하여,불합격 (fail)임을 디스플레이부 (LCD)또는발광부 (LED)로표시하거나,부저 (buzzer)를 통해알리는,주파수불합격알림단계 ;
를포함하는것을특징으로하는,피부미용기의테스트시스템의 구동방법.
PCT/KR2020/002617 2019-02-27 2020-02-24 피부미용기의 테스트 시스템 WO2020175871A1 (ko)

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