KR20220165082A - Personalized digital healthcare system and method for analyzing skin condition thereof - Google Patents

Abstract

The present invention relates to a personalized digital healthcare system and a skin condition analysis method thereof, which can measure and analyze changes in the skin condition of various body parts by using light. The personalized digital healthcare system comprises: a skin measurement device which irradiates the body's skin with light, acquires measurement values from reflected light having passed through the skin; and a user terminal which analyzes changes in the skin's condition based on the measurement values received from the skin measurement device, or outputs analysis results. The skin measurement device comprises a light source unit with multiple wavelengths and a plurality of light reception units. When a specific skin measurement mode is received from the user terminal, the skin measurement device selects all or some of the wavelengths of the light source unit and all or some of the light reception units based on the received skin measurement mode, controls the light source unit to irradiate the skin with light of the selected wavelengths, and controls the light reception units so that the selected light reception units receive the reflected light having passed through the skin.

Description

Personalized digital healthcare system and its skin analysis method

The present invention relates to a personalized digital healthcare system, and more particularly, to a personalized digital healthcare system capable of measuring and analyzing skin condition changes in various body parts using light and a skin analysis method thereof.

Currently, there are medical and non-medical devices on the market that analyze various body components.

Most of these devices include scales, oxygen saturation and heart rate monitors, blood pressure monitors, blood glucose monitors, and the like, and display about one or two body components.

These devices are composed of related sensor elements and controllers, and additional sensing elements are attached to obtain additional biomarkers.

For example, a bioelectrical resistance type body composition analyzer achieves its purpose by adding a corresponding element, such as a temperature sensor, when it is desired to add the skin surface temperature in addition to the amount of body fat and moisture.

Among these body composition analyzers, the bioelectrical resistance type body composition analyzer calculates body composition by analyzing body impedance measured by passing a weak current through the human body. It is mainly used in products such as scales that analyze body composition of the entire body. However, there is a problem of having a large error depending on the surrounding environment such as the user's water intake and temperature, and there is also a problem that the body composition information cannot be provided for each specific body part desired by the user.

In addition, existing skin measurement devices provide only simple information on the current skin condition by measuring the skin condition for a specific body part, and cannot provide specific and detailed information such as changes in skin condition of various body parts to the user. There was also a problem of not providing various conveniences.

In order to compensate for these disadvantages, a skin measuring device using infrared light can measure the inside of the skin in a localized area, but most of the products that can measure various measurements, including changes in body composition, are expensive medical systems and can be used by individuals. Low-cost products such as existing oximeters are limited to measuring oxygen saturation and heart rate at the finger.

Therefore, in the future, it is possible to manufacture a subminiature skin analyzer so that the skin condition change of various body parts can be measured and analyzed even though the low-cost small skin analyzer has limitations such as small memory capacity, low measurement speed, and low data transmission speed. There is a demand for the development of a personalized digital healthcare system.

Republic of Korea Patent Publication No. 10-2019-0110987 (2019. 10. 01)

One object of the present invention to solve the above problems is to obtain measurement values by selecting the light wavelength of the light source unit and the light receiver according to the skin measurement mode selected in the user terminal, thereby analyzing changes in skin conditions in various body parts. At the same time, it is to provide a personalized digital healthcare system capable of producing a low-cost and ultra-small skin analyzer and a skin analysis method thereof.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

A personalized digital healthcare system according to an embodiment of the present invention for solving the above problems is a skin measuring device that irradiates light to the skin of the body and obtains a measurement value from the reflected light passing through the inside of the skin, and and a user terminal for analyzing a change in the state of the skin or outputting an analysis result based on a measurement value received from the skin measuring device, wherein the skin measuring device includes a multi-wavelength light source unit and a plurality of light receiving units, When a predetermined skin measurement mode is received from the terminal, all or part of the light wavelength of the light source unit and all or part of the light receiving unit are selected based on the received skin measurement mode, and light is transmitted to the skin with the selected light wavelength. It is characterized in that the light source unit is controlled to emit light, and the light receiver is controlled so that the selected light receiver receives the reflected light passing through the inside of the skin and reflected.

In an embodiment, the skin measuring unit selects the number of light wavelengths to be used according to the skin measurement mode when selecting all or part of the light wavelength of the light source unit and all or part of the light receiving unit, and determines the reflected light It is characterized in that at least one of the number and position of the receiving optical receiver is selected.

In an embodiment, the skin measuring device, when selecting all or part of the light wavelength of the light source unit and all or part of the light receiving unit, the number of times of measuring the measured value, the measuring speed and the measuring time according to the skin measuring mode It is characterized in that at least one of them is selected.

In an embodiment, the skin measuring device is characterized in that, when the obtained measurement value is plural, the plurality of measurement values are averaged to determine a final measurement value for each light wavelength and each light receiving unit.

In an embodiment, the skin measuring device is characterized in that the obtained measurement value is transmitted at one time or divided into bundles according to a communication environment.

In an embodiment, the user terminal is characterized in that when a skin measurement mode is selected in accordance with a user input, the selected skin measurement mode is transmitted to the skin measuring device.

In an embodiment, the user terminal selects the skin measurement mode, transmits the selected skin measurement mode to the skin measurement device, receives measurement values from the skin measurement device, and includes oxygen saturation and heart rate based on the received measurement values. It is characterized in that at least one or more of body constituent substances including indicators and oxyhemoglobin, deoxyhemoglobin, fat, and water is analyzed, and information on changes in the skin condition is output in real time based on the analysis result.

In an embodiment, the present invention is characterized in that it further comprises a server for analyzing the change in the state of the skin based on the measured value received from the skin measuring device.

On the other hand, the skin measuring device of the personalized digital healthcare system according to an embodiment of the present invention includes a communication unit connected to a user terminal or server, a multi-wavelength light source unit for irradiating light to the skin of the body, and passing through the inside of the skin. and a plurality of light receiving units for receiving the reflected light and obtaining a measurement value, and a control unit for controlling the communication unit, the light source unit, and the light receiving unit, wherein the control unit measures a predetermined amount of skin from the user terminal through the communication unit. When the mode is received, all or part of the light wavelength of the light source unit and all or part of the light receiving unit are selected based on the skin measurement mode, and the light source unit is controlled to irradiate light with the selected light wavelength to the skin. Controlling the light receiving unit so that the selected light receiving unit receives the reflected light passing through the inside of the skin to obtain a measured value, and controlling the communication unit to transmit the obtained measured value to the user terminal or server characterized by

On the other hand, the terminal of the personalized digital healthcare system including the skin measuring device according to an embodiment of the present invention displays a communication unit communicatively connected to the skin measuring device, a measurement mode selection window for selecting a skin measuring mode, and analysis result information. a display unit configured to perform a skin measurement, an analyzer configured to analyze a change in skin condition based on a measurement value received from the skin measuring device, and a control unit configured to control the communication unit, the display unit, and the analysis unit, wherein the control unit communicates with the skin measuring device. When connected, the display unit is controlled to display a measurement mode selection window for selecting the skin measurement mode, and when a user input for selecting a predetermined skin measurement mode is received from the measurement mode selection window, the selected skin measurement mode is displayed on the skin measuring device. Controls the communication unit to transmit to, and controls the analysis unit to analyze a change in skin condition based on the received measurement value when a measurement value measured corresponding to the selected skin measurement mode is received from the skin measurement device, It is characterized in that the display unit is controlled to display skin analysis result information analyzed by the analysis unit.

In an embodiment, the measurement mode selection window includes a plurality of skin measurement mode items and a selection button corresponding to each item, and the control unit corresponds to the selection button when a user input is received through the selection button. and controlling the communication unit to transmit a skin measurement mode to the skin measuring device.

In an embodiment, the measurement mode selection window includes a body shape showing the entire body of a person, and when a user input for selecting a specific body part from among the body shapes is received, the control unit produces a message corresponding to the selected specific body part. It is characterized in that the communication unit is controlled to transmit a skin measurement mode to the skin measuring device.

On the other hand, the server of the personalized digital healthcare system including the skin measuring device and the user terminal according to an embodiment of the present invention includes a communication unit that is communicatively connected to the skin measuring device and the user terminal, and processes payment for paid services of the user terminal. It includes a payment processing unit, an analysis unit that analyzes a change in skin condition based on the measurement value received from the skin measuring device, and a control unit that controls the communication unit, the storage unit, and the analysis unit, wherein the control unit controls the user terminal to measure the skin. When a measurement mode selection window for mode selection is requested, a measurement mode selection window in which only the skin measurement mode of the free service is activated and the skin measurement mode of the paid service is deactivated is provided to the corresponding user terminal, and the paid service is provided from the user terminal. When a payment request is received, the payment processing unit is controlled to process the paid service payment of the user terminal, and when the paid service payment processing is completed, a measurement mode selection window for activating the skin measurement mode of the paid service is displayed on the corresponding user terminal. It is characterized by providing

Meanwhile, a skin analysis method of a personalized digital healthcare system including a skin measuring device and a user terminal according to an embodiment of the present invention includes displaying a measurement mode selection window for selecting a skin measurement mode by the user terminal, the Receiving, by the user terminal, a user input for selecting a predetermined skin measurement mode from the measurement mode selection window; Transmitting, by the user terminal, the selected skin measurement mode to the skin measuring device; Receiving the selected skin measurement mode, selecting all or part of the light wavelength of the light source unit or part of the light receiving unit based on the received skin measurement mode by the skin measuring unit, Controlling the light source unit to irradiate light with a selected light wavelength and controlling the selected light receiver to receive the reflected light passing through the inside of the skin to receive a measured value, the skin measuring device acquiring the measured value Transmitting to the user terminal, the user terminal receiving the measurement value from the skin measuring device, and the user terminal analyzing the skin condition change based on the received measurement value to obtain skin analysis result information Characterized in that it includes the step of displaying.

A computer program providing a skin analysis method according to another embodiment of the present invention for solving the above problems is combined with a computer that is hardware and stored in a medium to perform any one of the above methods.

In addition to this, another method for implementing the present invention, another system, and a computer readable recording medium recording a computer program for executing the method may be further provided.

As described above, according to the present invention, according to the skin measurement mode selected in the user terminal, all or part of the light wavelength of the light source unit and all or part of the light receiving unit are selected to obtain measurement values, thereby analyzing changes in skin conditions in various body parts. At the same time, it is possible to manufacture a low-cost and ultra-small skin measuring device.

In addition, the present invention uses a low-cost, ultra-compact skin measuring device consisting only of a multi-wavelength near-infrared light source module and a plurality of light receiving devices without a special additional sensor, and simultaneously measures oxygen saturation and heart rate as well as two body indices: oxyhemoglobin, deoxyhemoglobin, It is possible to measure and analyze the amount of change in at least four substances, such as fat and water.

In addition, the present invention is an analysis method using infrared rays, which can classify and analyze body components as much as the local area where light reaches. , neck, right upper arm, left thigh, etc.) has the advantage of being able to analyze and track changes in body composition, so it can be used as a complementary indicator with the bioelectrical impedance analysis method.

In addition, the present invention, as a non-medical device, is for measuring the change in body composition of a specific body part in daily life that does not require medical precision for the general public in the short and long term, using an infrared light source and a light receiver to measure oxygen saturation and It is possible to classify the ratios of two indicators of heart rate and four or more of the components of the skin of the corresponding area, and efficiently measure the amount of change.

In addition, according to the present invention, the target level of data can be extracted in the most efficient way even with a low-cost micro skin measuring device by changing the control method according to the characteristics of the body index and the body constituent material to be measured, and the present invention The control method of can be implemented by selecting a measurement mode according to a biomarker to be measured.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a block diagram illustrating a personalized digital healthcare system according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating the skin measuring device of FIG. 1 .
FIG. 3 is a block diagram illustrating the user terminal of FIG. 1 .
4 is a block configuration diagram for explaining the server of FIG. 1 .
5 to 7 are flowcharts for explaining the skin measurement mode and analysis method of the personalized digital healthcare system according to an embodiment of the present invention.
8A and 8B are views showing a measurement mode selection window for selecting a skin measurement mode.
9 is a diagram for explaining a process of providing a paid service in a skin measurement mode.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only these embodiments are intended to complete the disclosure of the present invention, and are common in the art to which the present invention belongs. It is provided to fully inform the person skilled in the art of the scope of the invention, and the invention is only defined by the scope of the claims.

Terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" does not exclude the presence or addition of one or more other elements other than the recited elements. Like reference numerals throughout the specification refer to like elements, and “and/or” includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various components, these components are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first element mentioned below may also be the second element within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those skilled in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description, the meaning of the terms used in this specification will be briefly described. However, it should be noted that the description of terms is intended to help the understanding of the present specification, and is not used in the sense of limiting the technical spirit of the present invention unless explicitly described as limiting the present invention.

1 is a block diagram illustrating a personalized digital healthcare system according to an embodiment of the present invention.

As shown in FIG. 1, the personalized digital healthcare system 10 of the present invention includes a skin measuring device 100 that irradiates light to the skin of the body and obtains a measurement value from reflected light passing through the inside of the skin and reflected , The user terminal 200 may include a user terminal 200 that analyzes a change in skin condition or outputs an analysis result based on the measured value received from the skin measuring device 100 .

In some cases, as another embodiment, the personalized digital healthcare system 10 of the present invention further includes a server 300 that analyzes a change in skin condition based on the measurement value received from the skin measuring device 100. You may.

A network that connects communication between the skin measuring device 100 and the user terminal 200, between the skin measuring device 100 and the server 300, and between the user terminal 100 and the server 300 includes both wired and wireless networks. However, various communication standards for pairing or/and data transmission/reception between the skin measuring device 100 and the user terminal 200, between the skin measuring device 100 and the server 300, and between the user terminal 100 and the server 300 It collectively refers to a communication network supporting a protocol.

These wired/wireless networks include all communication networks currently or to be supported in the future according to standards, and can support all one or more communication protocols therefor.

Such wired/wireless networks include, for example, Universal Serial Bus (USB), Composite Video Banking Sync (CVBS), Component (Component), S-Video (Analog), Digital Visual Interface (DVI), High Definition Multimedia Interface (HDMI), Networks for wired connections such as RGB and D-SUB, communication standards and protocols for them, Bluetooth, RFID (Radio Frequency Identification), infrared communication (IrDA: Infrared Data Association), UWB (Ultra Wideband), ZigBee (ZigBee), Digital Living Network Alliance (DLNA), Wireless LAN (WLAN) (Wi-Fi), Wireless broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), LTE/LTE -A (Long Term Evolution/LTE-Advanced), it may be formed by a network for wireless connection such as Wi-Fi direct and a communication standard or protocol for it.

In addition, the user terminal 200 includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, personal digital assistants (PDA), a portable multimedia player (PMP), a navigation device, and a slate PC. ), tablet PC, ultrabook, wearable device (e.g., watch type terminal (smartwatch), glass type terminal (smart glass), HMD (head mounted display)), etc. It may be a mobile terminal that becomes

As another case, the user terminal 200 may be applied to a fixed terminal such as a digital TV, a desktop computer, a digital signage, or a smart mirror.

In addition, the skin measuring device 100 may include a multi-wavelength light source unit and a plurality of light receiving units.

When a predetermined skin measurement mode is received from the user terminal 200, the skin measuring device 100 selects all or part of the light wavelength of the light source unit and all or part of the light receiving unit based on the received skin measurement mode. The light source unit may be controlled to emit light with a selected light wavelength, and the light receiver may be controlled so that the selected light receiver receives the reflected light passing through the inside of the skin and reflected.

Here, the skin measuring device 100 selects the number of light wavelengths to be used according to the skin measurement mode when selecting all or part of the light wavelength of the light source unit and all or part of the light receiving unit, and the light receiving unit for receiving the reflected light. At least one of the number and location may be selected.

For example, if the skin measuring mode is the first skin measuring mode, the skin measuring device 100 may select two different light wavelengths and select one light receiving unit closest to the light source among the plurality of light receiving units, which is It is only an example, but is not limited thereto.

Here, when the first skin measuring mode is a mode for measuring oxygen saturation and heart rate using pulsation, the skin measuring device 100 selects two different light wavelengths, a first light wavelength higher than the reference light wavelength and A second light wavelength lower than the reference light wavelength may be selected.

For example, the skin measuring device 100 may select an 800 nm light wavelength range as a reference light wavelength, which is only an example, but is not limited thereto.

At this time, the skin measuring device 100 selects a first light wavelength higher than the reference light wavelength from the light wavelength range including 800 nm to 1000 nm, and selects a second light wavelength lower than the reference light wavelength from the light wavelength range including 600 nm to 800 nm. It can be selected, which is only one embodiment, but is not limited thereto.

As another example, the skin measuring device 100 selects two to three different light wavelengths when the skin measuring mode is the second skin measuring mode, and selects one to two light receiving units close to the light source among the plurality of light receiving units. can be selected

Here, when the second skin measuring mode is a mode for measuring oxygen saturation that is changed according to muscle movement in real time, the skin measuring device 100 selects two to three different light wavelengths than the reference light wavelength. A high first light wavelength and a second light wavelength lower than the reference light wavelength may be selected, and a third light wavelength higher or lower than the reference light wavelength may be selected, if necessary.

For example, the skin measuring device 100 may select an 800 nm light wavelength range as a reference light wavelength, which is only an example, but is not limited thereto.

At this time, the skin measuring device 100 selects a first light wavelength higher than the reference light wavelength from the light wavelength range including 800 nm to 1000 nm, and selects a second light wavelength lower than the reference light wavelength from the light wavelength range including 600 nm to 800 nm. If necessary, an arbitrary third light wavelength higher or lower than the reference light wavelength may be selected, which is only an example, but is not limited thereto.

As another example, if the skin measurement mode is the third skin measurement mode, the skin measuring device 100 may select all different light wavelengths and select all light receivers.

Here, when the third skin measurement mode is a mode for measuring all body component ratios of stable skin, the skin measuring device 100 may select all different light wavelengths from the near-infrared wavelength range when selecting all different light wavelengths. have.

Next, when the skin measuring device 100 selects all or part of the light wavelength of the light source unit and all or part of the light receiving unit, at least one of the number of measurement values, the measurement speed, and the measurement time according to the skin measurement mode. can be selected.

For example, if the skin measurement mode is the first skin measurement mode, the skin measuring device 100 may select a measurement speed of 20 times per second or more, and select a measurement time of several seconds to several tens of seconds. It is an example only, but not limited thereto.

Here, the first skin measurement mode may be a mode for measuring oxygen saturation and heart rate using pulsations.

As another example, if the skin measuring mode is the second skin measuring mode, the skin measuring device 100 may select a measuring speed of the measured values at a speed of 2 to 10 times per second and select the number of measurements as once, which is one It is only an example, but is not limited thereto.

Here, the second skin measurement mode may be a mode for measuring oxygen saturation, which is changed according to muscle movement, in real time.

As another example, if the skin measurement mode is the third skin measurement mode, the skin measuring device 100 may select a speed of measurement of the measurement value as 2 times or less per second, and select the number of measurements as 2 to tens of times. .

Next, the skin measuring device 100 or the user terminal 200 may average a plurality of acquired measurement values to determine a final measurement value for each light wavelength and each light receiving unit.

Here, the third skin measurement mode may be a mode for measuring all body component ratios of the stable skin.

In addition, the skin measuring device 100 may transmit the acquired measurement value at one time or in bundles according to the communication environment.

Meanwhile, the user terminal 200 may transmit the selected skin measurement mode to the skin measuring device 100 when a skin measurement mode is selected corresponding to the user input.

In addition, the user terminal 200 receives measurement values from the skin measuring device 100, and based on the received measurement values, biomarkers including oxygen saturation and heart rate, and oxyhemoglobin, deoxyhemoglobin, fat, and water are included. At least one or more of the body constituent substances to be analyzed, and based on the analysis result, condition change information of the skin may be output in real time.

For example, the user terminal 200 receives a measurement value from the skin measuring device 100, and the received measurement value includes a first light wavelength higher than the reference light wavelength and a second light wavelength lower than the reference light wavelength. 1 If it is a measurement value in skin measurement mode, oxygen saturation and heart rate can be analyzed based on the received measurement value.

Here, when the user terminal 200 analyzes the oxygen saturation based on the received measurement value, R = log ₁₀ ((I _dc+ac )/(I _dc )) _λ1 /log ₁₀ ((I _{dc+ ac} )/(I _dc )) _λ2 , SaO ₂ = C _o /C _o + C _r = α _r2 R - α _r1 /(α _r2 - α _o2 )R - (α _r1 - α _o1 ) where SaO ₂ is oxygen saturation, C _o is the concentration of oxyhemoglobin, C _r is the concentration of deoxyhemoglobin, α _o1 is the absorption coefficient of oxyhemoglobin at the first optical wavelength, and α _o2 is the absorption coefficient of oxyhemoglobin at the second optical wavelength , α _r1 is the absorption coefficient of deoxyhemoglobin at the first light wavelength, α _r2 is the absorption coefficient of deoxyhemoglobin at the second light wavelength, I _dc is the direct current component of light absorbed by the human body, and I _{dc +ac} is the human body The oxygen saturation can be calculated and analyzed by an equation consisting of the sum of the DC component and the AC component of the light absorbed by the light.

As another example, the user terminal 200 receives measurement values from the skin measuring device 100, and the received measurement values include one or more first light wavelengths higher than the reference light wavelength and one or more second light wavelengths lower than the reference light wavelength. If it is a measurement value of the second skin measurement mode including the wavelength, the oxygen saturation of body muscles may be analyzed in real time based on the received measurement value.

Here, when the user terminal 200 analyzes the oxygen saturation of the muscles of the body based on the received measurement value, the circuit amplification compensation value is calculated from the received measurement value to remove the effect of the circuit amplification, and the calculated circuit amplification value is calculated. From the compensation value, the reception sensitivity compensation value to which the reception sensitivity characteristic value for each wavelength of the light receiving element is applied is calculated to remove the reception sensitivity effect for each wavelength, and the absorption and scattering attenuation rate is calculated based on the reception sensitivity compensation value and the light intensity of the light source. , Calculating the absorption rate by removing the attenuation rate due to scattering of the skin from the absorption and scattering attenuation rates, and calculating the absorption rate based on the difference in absorptivity between the first light wavelength higher than the reference light wavelength and the second light wavelength lower than the reference light wavelength, and oxyhemoglobin and Oxygen saturation of the body's muscles can be analyzed by estimating the rate or change in deoxyhemoglobin.

At this time, when calculating the circuit amplification compensation value, the user terminal 200 may calculate the circuit amplification compensation value by a formula consisting of = measured value/amplification rate of the light receiving element of the skin measuring instrument.

In addition, when calculating the reception sensitivity compensation value, the user terminal 200 may calculate the reception sensitivity compensation value by an equation consisting of the circuit amplification compensation value/reception sensitivity for each wavelength of the optical receiving device.

In addition, when the user terminal 200 calculates the absorption and scattering attenuation rate, it can be calculated by an equation consisting of absorption and scattering attenuation rate = Log (light intensity of light source/reception sensitivity compensation value).

In addition, when the user terminal 200 calculates the absorption rate, it can be calculated by an equation consisting of absorption rate = absorption and scattering attenuation rate - (scattering attenuation rate * measurement site correction factor).

In addition, when the user terminal 200 calculates the absorption rate at the first or second light wavelength, absorption rate = oxyhemoglobin absorption coefficient * oxyhemoglobin ratio + deoxyhemoglobin absorption coefficient * deoxyhemoglobin ratio + It can be calculated by a formula consisting of the absorption rate of fat and water + the absorption rate of other substances.

As another example, the user terminal 200 receives measurement values from the skin measuring device 100, and measures the third skin measurement mode in which the received measurement values include final measurement values determined for each light wavelength and for each optical receiver. value, it is possible to analyze all body components of the skin based on the received measurement value.

Here, when the user terminal 200 analyzes all body components of the skin based on the received measurement values, the absorption rate of a light source corresponding to a wavelength having a high absorption coefficient in fat and a wavelength having a high absorption coefficient in water is determined as oxygen. Absorption rate corresponding to the amount of hemoglobin and deoxyhemoglobin is removed to calculate the absorption rate of fat and water, and based on this, the ratio or change of fat and water can be estimated to analyze all body components of the skin.

At this time, when the user terminal 200 calculates the absorption rate of fat and water, the absorption rate of fat and water = (absorption rate - hemoglobin absorption rate) * slope value * correction coefficient, slope value = RPD _{n + 1} /RPD _n ( Here, n is a natural number greater than or equal to 1, PD _n and PD _{n +1} are light receivers adjacent to each other, RPD _n is a measured value of light intensity received by the light receiver disposed closer to the light source among PD _n and PD _{n + 1} , RPD _{n +} 1 is a measurement value of light intensity received by a light receiver disposed farther from the light source unit among PD _n and PD _{n + 1} ).

In this way, the present invention can extract data of a target level in the most efficient way even with a low-cost micro skin measuring device by changing the control method according to the body index and the characteristics of the body constituent material to be measured.

The control method of the present invention can be implemented by selecting a measurement mode according to a biomarker to be measured, and can be typically classified into the following three skin measurement modes.

The first skin measurement mode is a mode for measuring oxygen saturation and heart rate using pulsation, and high-speed measurement is possible by reducing measurement data to reduce measurement speed and data capacity and transmitting measurement data.

The first skin measurement mode is a method for obtaining accurate oxygen saturation in a region where pulses can be easily measured even with a small and inexpensive skin monitor, such as a finger or palm. In areas with a lot of muscle or fat, expensive medical equipment is required Otherwise, it is difficult to measure the pulsation.

In the case of measurement of oxygen saturation and heart rate, the absorbance of deoxyhemoglobin is high in a short wavelength band centered on a wavelength of about 800 nm, and the absorbance of oxyhemoglobin is high in a long wavelength band.

Accordingly, oxygen saturation and heart rate can be measured by measuring the pulsation signal using relative optical characteristics of reflected light values received for each wavelength.

In addition, in order to obtain oxygen saturation and heart rate using the difference in amplitude, which is an alternating component of the pulsation generated by the received reflected light, it is necessary to measure the reflected light value at least 20 times per second.

Therefore, in the present invention, based on about 800 nm, a higher wavelength (for example, 940 nm) and a lower wavelength (for example, 660 nm) are specified, and only the light source of these two wavelengths and one light receiving unit closest to the light source are controlled. By measuring using the same method, it is possible to measure more than 20 times per second, and the amount of measurement data can be greatly reduced.

In this way, after obtaining the reflected light value 20 or more times per second for several seconds to several tens of seconds, the measured data may be temporarily or collectively divided according to the communication environment and transmitted to the user terminal or server.

This method can maximize the measurement speed by removing the measurement delay caused by the wireless communication speed that occurs when the measurement value is transmitted each time.

From the transmitted data, oxygen saturation and heart rate can be obtained using a formula based on the difference in amplitude for the two wavelengths.

At this time, the specific wavelengths of 940 nm and 660 nm are only examples, and depending on circumstances, light sources of other wavelengths that are higher and lower than 800 nm may be used.

In addition, in the present invention, the measured pulsation signal can be obtained using the light of the two wavelengths.

Here, the heart rate may be measured through a unit of a certain time, for example, the number of pulsations per minute.

Next, the second skin measurement mode is a mode capable of real-time measurement of oxygen saturation in local areas such as muscles during operation, using 2 to 3 wavelengths of light and 1 to 2 receiving elements to increase the measurement speed and increase the amount of data. can reduce

Here, since the second skin measurement mode can transmit measurement results every time, oxygen saturation that changes according to muscle movement can be monitored in real time.

In muscle, it is very difficult to measure pulsating signals, so a measurement rate of 20 times per second or more is not necessary.

A light source of two to three wavelengths of one or more higher wavelengths (eg, 850, 940 nm) and one or more lower wavelengths (eg, 660, 780 nm) based on about 800 nm for measuring oxygen saturation of muscles, and By controlling and measuring only one or two light receivers closest to the light source, the amount of data transmitted each time to the user terminal or server can be reduced.

By analyzing the transmitted data, the oxygen saturation of the muscles during exercise can be checked in real time.

The measured data may be analyzed as a composition ratio of oxyhemoglobin and deoxyhemoglobin or a variation thereof through the following steps.

In addition, through the ratio of these two substances, the oxygen saturation in the corresponding area, for example, the biceps muscle, can be calculated.

The classification of the calculation steps below is only one example for convenience, and the order may change depending on the situation.

In the first step, since the intensity of reflected light incident on the light receiving element is very small, an amplifier circuit is used together with the light receiving element.

The amplification factor of the circuit may vary according to each receiving element, and since the measured value of the reflected light is the amplified value of the intensity of the reflected light incident on the light receiving element, the effect of circuit amplification is removed.

When calculating the circuit amplification compensation value, it can be calculated by a formula consisting of circuit amplification compensation value = measurement value / amplification factor of the light receiving element of the skin measuring instrument.

In the second step, since the light receiving element has different light receiving sensitivity characteristics according to the wavelength of the light source, the effect of the receiving sensitivity according to each wavelength is removed from the circuit amplification compensation value.

When calculating the reception sensitivity compensation value, it may be calculated by an equation consisting of the reception sensitivity compensation value = circuit amplification compensation value/reception sensitivity for each wavelength of the optical receiving device.

In the third step, the ratio of the reception sensitivity compensation value and the light intensity of the light source for each wavelength is converted into an attenuation rate by taking a logarithm.

At this time, the attenuation rate includes both attenuation due to absorption and scattering.

When calculating the absorption and scattering attenuation rate, it can be calculated by an equation consisting of absorption and scattering attenuation rate = Log (light intensity of light source/reception sensitivity compensation value).

In the fourth step, the attenuation rate due to skin scattering is removed from the absorption and scattering attenuation rates.

When calculating the absorption rate, it can be calculated by a formula consisting of absorption rate = absorption and scattering attenuation rate - (scattering attenuation rate * measurement site correction factor).

In the fifth step, the ratio or amount of change between oxyhemoglobin and deoxyhemoglobin may be estimated through an analysis of the difference in absorptivity at high and low wavelengths based on about 800 nm.

Depending on each wavelength, it can be calculated using the following formula.

When calculating the absorption rate at the first or second light wavelength, the absorption rate = absorption coefficient of oxyhemoglobin * ratio of oxyhemoglobin + absorption coefficient of deoxyhemoglobin * ratio of deoxyhemoglobin + absorption rate of fat and water + other substances It can be calculated by a formula consisting of water absorption.

Subsequently, the third skin measurement mode is a mode for measuring the ratio of stable skin components, and can be measured at a speed of 2 times per second or less by controlling all light sources and receiving elements, and stable measurement values with small errors can be obtained. .

In order to measure the component ratio of the skin with little change, a more stable reflected light measurement value is required.

Therefore, in the present invention, the method of controlling all light receivers while sequentially irradiating light sources of all wavelengths and obtaining reflected light values is repeated from at least two times to dozens of times, and the average value is the final measured value for each light receiver for each wavelength. It is preferable to set

In this way, it is possible to obtain a stable value of hemoglobin, which is particularly variable, and this measured value uses the same calculation process in mode 2 for hemoglobin and finally As a result, it can be calculated as the composition ratio of the body's constituent substances or its change.

Here, the estimation of the ratio or change of fat and water is the absorption rate of the light source corresponding to the wavelength having a high absorption coefficient in fat (e.g., 920 ~ 930 nm) and the wavelength having a high absorption coefficient in water (e.g., 970 ~ 980 nm) It can be analyzed by deriving the value after removing the absorption rates corresponding to the amounts of oxyhemoglobin and deoxyhemoglobin calculated above.

It can be calculated using the following formula according to each wavelength having a high absorption coefficient in fat or water.

When calculating the absorption rate of fat and water, the absorption rate of fat and water = (absorption rate - hemoglobin absorption rate) * slope value * correction factor, slope value = RPD _n+1 /RPD _n (where n is a natural number greater than 1, PD _n and PD _n+1 are light receivers adjacent to each other, RPD _n is a measured value of light intensity received by the light receiver disposed closer to the light source out of PD _n and PD _n+1 , and RPD _n+1 is PD _n and PD _{n +1} is a measurement value of light intensity received by a light receiver disposed farther from the light source).

As described above, the present invention analyzes changes in skin condition of various body parts by obtaining measurement values by selecting all or part of the light wavelength of the light source unit and all or part of the light receiver according to the skin measurement mode selected in the user terminal. At the same time, it is possible to manufacture a low-cost and ultra-small skin measuring device.

In addition, the present invention uses a low-cost, ultra-small skin measuring device composed of only a multi-wavelength near-infrared light source module and a plurality of light receiving devices without a special additional sensor, and simultaneously measures oxygen saturation and heart rate as well as two body indices such as oxyhemoglobin, deoxyhemoglobin, It is possible to measure and analyze the amount of change in at least four substances, such as fat and water.

In addition, the present invention is an analysis method using infrared rays, which can classify and analyze body components as much as the local area where light reaches. , neck, right upper arm, left thigh, etc.) has the advantage of being able to analyze and track changes in body composition, so it can be used as a complementary indicator with the bioelectrical impedance analysis method.

In addition, the present invention, as a non-medical device, is for measuring the change in body composition of a specific body part in daily life that does not require medical precision for the general public in the short and long term, using an infrared light source and a light receiver to measure oxygen saturation and It is possible to classify the ratios of two indicators of heart rate and four or more of the components of the skin of the corresponding area, and efficiently measure the amount of change.

In addition, according to the present invention, the target level of data can be extracted in the most efficient way even with a low-cost micro skin measuring device by changing the control method according to the characteristics of the body index and the body constituent material to be measured, and the present invention The control method of can be implemented by selecting a measurement mode according to a biomarker to be measured.

FIG. 2 is a block diagram illustrating the skin measuring device of FIG. 1 .

As shown in FIG. 2, the skin measuring device 100 of the present invention includes a communication unit 110 that is communicatively connected to a user terminal or server, a multi-wavelength light source unit 120 that irradiates light to the skin of the body, and the inside of the skin. It may include a plurality of light receivers 130 that receive reflected light passing through and reflected to obtain a measurement value, and a control unit 140 that controls the communication unit 110, the light source unit 120, and the light receiver 130. .

Here, the communication unit 110 may be communicatively connected to a user terminal or server, and may transmit/receive digital data such as contents by accessing a network by wire or wirelessly.

For example, the communication unit 110 may include a wireless Internet module, a local area communication module, and the like.

Here, the wireless Internet module refers to a module for wireless Internet access, and may be built in or external to the skin measuring device 100.

The wireless Internet module is configured to transmit and receive radio signals in a communication network according to wireless Internet technologies.

Wireless Internet technologies include, for example, WLAN (Wireless LAN), Wi-Fi (Wireless-Fidelity), Wi-Fi (Wireless Fidelity) Direct, DLNA (Digital Living Network Alliance), WiBro (Wireless Broadband), WiMAX (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), HSUPA (High Speed Uplink Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), etc. Data is transmitted and received according to at least one wireless Internet technology within a range including Internet technologies not listed in .

From the viewpoint that wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE, LTE-A, etc. is made through a mobile communication network, a wireless Internet module that performs wireless Internet access through a mobile communication network is a mobile communication It can also be understood as a kind of module.

The short-range communication module is for short-range communication, and includes Bluetooth™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and Near NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and wireless USB (Wireless Universal Serial Bus) technology may be used to support short-distance communication.

The light source unit 120 may radiate light into the skin in contact with the user's skin.

For example, the light source unit 120 may be a light source such as a laser or LED, but is not limited thereto.

The light source unit 120 may be a single wavelength or multi-wavelength light source unit.

That is, the light source unit 120 may emit light of a specific wavelength or may emit light of various wavelengths.

The light receiving unit 130 may receive light reflected from the inside of the skin in contact with the user's skin.

For example, the light receiving unit 130 may be a light receiving element such as a photodiode, but is not limited thereto.

Next, when receiving a predetermined skin measurement mode from the user terminal through the communication unit 110, the control unit 140 selects the light wavelength of the light source unit 120 and the light receiving unit 130 based on the skin measurement mode, Control the light source unit 120 to emit light with a selected light wavelength, and control the light receiver 130 so that the selected light receiver 130 receives the reflected light passing through the inside of the skin and obtains a measured value, The communication unit 110 may be controlled to transmit the obtained measurement value to the user terminal or server.

Here, the controller 140, when selecting the light wavelength of the light source unit 120 and the light receiving unit 130, selects the number of light wavelengths to be used according to the skin measurement mode, and selects the number of light receiving units 130 for receiving the reflected light. At least one of the number and location may be selected.

For example, if the skin measurement mode is the first skin measurement mode, the controller 140 may select two different light wavelengths and select one light receiver closest to the light source from among the plurality of light receivers. It is only an example, but is not limited thereto.

Here, when the first skin measuring mode is a mode for measuring oxygen saturation and heart rate using pulsation, the skin measuring device 100 selects two different light wavelengths, a first light wavelength higher than the reference light wavelength and A second light wavelength lower than the reference light wavelength may be selected.

As another example, if the skin measurement mode is the second skin measurement mode, the controller 140 selects two to three different light wavelengths and selects one to two light receivers that are close to the light source unit among the plurality of light receivers. can do.

Here, when the second skin measurement mode is a mode for measuring oxygen saturation that changes according to muscle movement in real time, the controller 140 selects two to three different light wavelengths, higher than the reference light wavelength. A second light wavelength lower than the first light wavelength and the reference light wavelength may be selected, and a third light wavelength higher or lower than the reference light wavelength may be selected, if necessary.

As another example, if the skin measurement mode is the third skin measurement mode, the controller 140 may select all different light wavelengths and select all light receivers 130 .

Here, when the third skin measurement mode is a mode for measuring all body component ratios of stable skin, the controller 140 may select all different light wavelengths from the near-infrared wavelength band when selecting all different light wavelengths. .

Next, when selecting the light wavelength of the light source unit 120 and the light receiving unit 130, the control unit 140 may select at least one of the number of measurement values, the measurement speed, and the measurement time according to the skin measurement mode. have.

For example, if the skin measurement mode is the first skin measurement mode, the controller 140 may select a measurement rate of 20 times per second or more and a measurement time of several seconds to several tens of seconds. but not limited thereto.

As another example, if the skin measurement mode is the second skin measurement mode, the controller 140 may select the measurement speed of the measured values at a speed of 2 to 10 times per second, and select the number of measurements as once, which is one implementation. It is an example only, but is not limited thereto.

As another example, if the skin measurement mode is the third skin measurement mode, the controller 140 may select a speed of measurement of the measurement value as 2 times or less per second, and select the number of measurements as 2 to tens of times.

Next, if there are a plurality of acquired measurement values, the controller 140 may average the plurality of measurement values to determine a final measurement value for each light wavelength and for each light receiving unit.

In addition, the controller 140 may transmit the acquired measurement values at one time or in bundles according to the communication environment.

FIG. 3 is a block diagram illustrating the user terminal of FIG. 1 .

As shown in FIG. 3 , the user terminal 200 of the present invention includes a communication unit 210 communicatively connected to a skin measuring device, a measurement mode selection window for selecting a skin measurement mode, and a display unit 220 displaying analysis result information. ), an analysis unit 230 that analyzes a change in skin condition based on the measurement value received from the skin measuring device, and a controller 240 that controls the communication unit 210, the display unit 220, and the analysis unit 230. can include

Here, the controller 240 controls the display unit 220 to display a measurement mode selection window for selecting a skin measurement mode when communication is connected with the skin measuring device, and the user selects a predetermined skin measurement mode from the measurement mode selection window. When an input is received, the communication unit 210 is controlled to transmit the selected skin measurement mode to the skin measuring device, and when a measured value corresponding to the selected skin measuring mode is received from the skin measuring device, the state of the skin is changed based on the received measured value. The analysis unit 230 may be controlled to analyze and the display unit 220 may be controlled to display skin analysis result information analyzed by the analysis unit 230 .

For example, the measurement mode selection window may include a plurality of skin measurement mode items and a selection button corresponding to each item, but this is only one embodiment, but is not limited thereto.

Here, the controller 240 may control the communication unit 210 to transmit a skin measurement mode corresponding to the selection button to the skin measuring device when a user input is received through the selection button.

As another example, the measurement mode selection window may include a body shape showing the entire body of a person, which is only one embodiment, but is not limited thereto.

Here, the controller 240 may control the communication unit 210 to transmit a skin measurement mode corresponding to the selected specific body part to the skin measuring device when a user input for selecting a specific body part among body shapes is received.

For example, if the user selects a pear among the body shapes in the measurement mode selection window, the controller 240 determines the third skin measurement mode corresponding to the belly part of the body, and determines the water and water corresponding to the third skin measurement mode. The skin measuring device may be controlled to turn on only wavelengths having high absorption characteristics of fat, and the skin measuring device may be controlled to operate in the first skin measuring mode when a user selects a finger or a palm from the body shape of the measuring mode selection window.

That is, the present invention can measure all measurable areas of the whole body with a micro skin measuring device, and accordingly, a process of selecting the area to be measured is essential.

Therefore, according to the present invention, the skin measuring device can be controlled in the most efficient measurement mode according to the user's action of selecting the region to be measured.

4 is a block configuration diagram for explaining the server of FIG. 1 .

As shown in FIG. 4, the server 300 of the present invention includes a communication unit 310 communicatively connected to the skin measuring device and the user terminal, a payment processing unit 320 processing paid service payment of the user terminal, and receiving data from the skin measuring device. It may include an analysis unit 330 that analyzes a change in skin condition based on a measurement value, and a controller 340 that controls the communication unit 310, the payment processing unit 320, and the analysis unit 330.

Here, the controller 340, when the user terminal requests to provide a measurement mode selection window for selecting a skin measurement mode, activates only the skin measurement mode of the free service and deactivates the skin measurement mode of the paid service to the corresponding user terminal. Provides a selection window, controls the payment processing unit 320 to process the paid service payment of the user terminal when receiving a payment request for paid service from the user terminal, and when the paid service payment processing is completed, the corresponding user terminal transmits the paid service A measurement mode selection window in which the measurement mode is activated may be provided.

As such, the present invention may provide paid services for each skin measurement mode.

For example, the third skin measurement mode can be provided free of charge as a basic function, and the first skin measurement mode and the second skin measurement mode 2 can be charged separately or in a bundle so that the corresponding mode can be used when payment is completed. It may be activated, which is only an example, but is not limited thereto.

5 to 7 are flowcharts for explaining the skin measurement mode and analysis method of the personalized digital healthcare system according to an embodiment of the present invention.

As shown in FIG. 5 , when the user terminal 200 of the present invention displays a measurement mode selection window for selecting a skin measurement mode and receives a user input for selecting a first skin measurement mode from the measurement mode selection window The selected first skin measurement mode may be transmitted to the skin measuring device 100 (S110).

Subsequently, when the skin measuring device 100 of the present invention receives the first skin measuring mode selected from the user terminal 200, based on the received first skin measuring mode, the light wavelength of all or part of the light source unit and the entirety of the light receiving unit Alternatively, select a part, control the light source unit to irradiate light with the selected light wavelength to the skin, and control the selected light receiver to receive the reflected light passing through the inside of the skin and receiving the measured value, and obtains the measured value may be transmitted to the user terminal 200 (S130).

Here, when the first skin measuring mode is a mode for measuring oxygen saturation and heart rate using pulsation, the skin measuring device 100 selects two different light wavelengths, a first light wavelength higher than the reference light wavelength and A second light wavelength lower than the reference light wavelength may be selected.

For example, the skin measuring device 100 may select an 800 nm light wavelength range as a reference light wavelength, which is only an example, but is not limited thereto.

At this time, the skin measuring device 100 selects a first light wavelength higher than the reference light wavelength from the light wavelength range including 800 nm to 1000 nm, and selects a second light wavelength lower than the reference light wavelength from the light wavelength range including 600 nm to 800 nm. It can be selected, which is only one embodiment, but is not limited thereto.

In addition, if the skin measurement mode is the first skin measurement mode, the skin measuring device 100 may select a measurement rate of 20 or more times per second and a measurement time of several seconds to several tens of seconds. but not limited thereto.

Next, when receiving the measured value from the skin measuring device, the user terminal 200 of the present invention may analyze a change in skin condition based on the received measured value (S150) and display skin analysis result information (S170).

As an example, the user terminal 200, if the received measurement value is a measurement value of the first skin measurement mode including a first light wavelength higher than the reference light wavelength and a second light wavelength lower than the reference light wavelength, the received measurement value Based on this, oxygen saturation and heart rate can be analyzed.

In addition, as shown in FIG. 6 , the user terminal 200 of the present invention displays a measurement mode selection window for selecting a skin measurement mode, and receives a user input for selecting a second skin measurement mode from the measurement mode selection window. Upon reception, the selected second skin measuring mode may be transmitted to the skin measuring device 100 (S210).

Next, when the skin measuring device 100 of the present invention receives the second skin measuring mode selected from the user terminal 200, based on the received second skin measuring mode, the light wavelength of all or part of the light source unit and the entirety of the light receiving unit Alternatively, select a part, control the light source unit to irradiate light with the selected light wavelength to the skin, and control the selected light receiver to receive the reflected light passing through the inside of the skin and receiving the measured value, and obtains the measured value may be transmitted to the user terminal 200 (S230).

Here, when the second skin measuring mode is a mode for measuring muscle oxygen saturation that changes according to muscle movement in real time, the skin measuring device 100 selects two to three different light wavelengths, the reference light wavelength A higher first light wavelength and a second light wavelength lower than the reference light wavelength may be selected, and an arbitrary third light wavelength higher or lower than the reference light wavelength may be selected, if necessary.

For example, the skin measuring device 100 may select an 800 nm light wavelength range as a reference light wavelength, which is only an example, but is not limited thereto.

At this time, the skin measuring device 100 selects a first light wavelength higher than the reference light wavelength from the light wavelength range including 800 nm to 1000 nm, and selects a second light wavelength lower than the reference light wavelength from the light wavelength range including 600 nm to 800 nm. If necessary, an arbitrary third light wavelength higher or lower than the reference light wavelength may be selected.

In addition, if the skin measurement mode is the second skin measurement mode, the skin measuring device 100 may select the measurement speed of the measured values at a speed of 2 to 10 times per second and select the number of measurements as once, which is one embodiment. but not limited thereto.

Next, when the user terminal 200 of the present invention receives the measurement value from the skin measuring device, it can analyze the change in skin condition based on the received measurement value (S250) and display the skin analysis result information (S270).

For example, the user terminal 200 receives measurement values from the skin measuring device 100, and the received measurement values include one or more first light wavelengths higher than the reference light wavelength and one or more second light wavelengths lower than the reference light wavelength. , if it is a measurement value of the second skin measurement mode including an arbitrary third light wavelength, oxyhemoglobin, deoxyhemoglobin, oxygen saturation, etc. of body muscles may be analyzed in real time based on the received measurement value.

Here, when the user terminal 200 analyzes the oxygen saturation of the muscles of the body based on the received measurement value, the circuit amplification compensation value is calculated from the received measurement value to remove the effect of the circuit amplification, and the calculated circuit amplification value is calculated. The reception sensitivity compensation value is calculated from the compensation value to remove the effect on reception sensitivity for each wavelength, the absorption and scattering attenuation rate is calculated based on the reception sensitivity compensation value and the light intensity of the light source, and the attenuation rate due to scattering of the skin is calculated from the absorption and scattering attenuation rate is removed to calculate the absorbance, and based on the difference in absorbance between the first light wavelength higher than the reference light wavelength and the second light wavelength lower than the reference light wavelength, or between the first light wavelength and the third light wavelength, oxyhemoglobin and By estimating the ratio or amount of change in deoxyhemoglobin, the oxygen saturation of the body's muscles can be analyzed in real time.

In addition, as shown in FIG. 7 , the user terminal 200 of the present invention displays a measurement mode selection window for selecting a skin measurement mode, and receives a user input for selecting a third skin measurement mode from the measurement mode selection window. Upon reception, the selected third skin measurement mode may be transmitted to the skin measuring device 100 (S310).

Subsequently, when the skin measuring device 100 of the present invention receives the third skin measuring mode selected from the user terminal 200, the light wavelength of all or part of the light source unit and the entirety of the light receiving unit based on the received third skin measuring mode Alternatively, select a part, control the light source unit to irradiate light with the selected light wavelength to the skin, and control the selected light receiver to receive the reflected light passing through the inside of the skin and receiving the measured value, and obtains the measured value may be transmitted to the user terminal 200 (S330).

Here, the skin measuring device 100 may select all different light wavelengths and select all light receivers when the third skin measuring mode is a mode for measuring all body component ratios of stable skin.

Next, when receiving the measured value from the skin measuring device, the user terminal 200 of the present invention may analyze a change in skin condition based on the received measured value (S370) and display skin analysis result information (S390).

For example, if the skin measurement mode is the third skin measurement mode, the user terminal 200 may select the measurement speed of the measurement value to 2 times per second or less, and select the number of measurements from 2 to tens of times. It is only an example, but is not limited thereto.

8A and 8B are views showing a measurement mode selection window for selecting a skin measurement mode.

As shown in FIGS. 8A and 8B , the user terminal 200 of the present invention displays a measurement mode selection window 260 for selecting a skin measurement mode on a display screen 250 when communication with the skin measuring device 100 is connected. can be displayed on

As shown in FIG. 8A , the measurement mode selection window 260 may include a plurality of skin measurement mode items 262 and a selection button 264 corresponding to each item.

Here, when a user input is received through the selection button 264, the user terminal 200 may transmit a skin measurement mode corresponding to the selection button 264 to the skin measuring device 100.

As another example, as shown in FIG. 8B , the measurement mode selection window 280 may include a selection window for selecting a name for each part of the human body or a body shape 282 showing the entire human body. However, this is only an example, but is not limited thereto.

Here, when a user input for selecting a specific body part 284 from the body shape 282 is received, the user terminal 200 transmits a skin measurement mode corresponding to the selected specific body part 284 to the skin measuring device 100. can

For example, if the user selects a belly from the body shape 282 of the measurement mode selection window 280, the user terminal 200 determines the third skin measurement mode corresponding to the belly part 284 of the body , The skin measuring device 100 can be controlled to operate in the third skin measuring mode, and when the user selects a finger or a palm from the body shape of the measuring mode selection window 280, the skin measuring device operates in the first skin measuring mode ( 100) can also be controlled.

That is, the present invention can measure all measurable areas of the whole body with a micro skin measuring device, and accordingly, a process of selecting the area to be measured is essential.

Therefore, according to the present invention, the skin measuring device can be controlled in the most efficient measurement mode according to the user's action of selecting the region to be measured.

9 is a diagram for explaining a process of providing a paid service in a skin measurement mode.

As shown in FIG. 9 , when the user terminal 200 requests to provide a measurement mode selection window 260 for selecting a skin measurement mode, the server 300 provides the user terminal 200 with a free service 262b. A measurement mode selection window 260 in which only the third skin measurement mode is activated and the skin measurement mode of the paid service 262a is deactivated may be provided.

In addition, when the server 300 receives a paid service payment request from the user terminal 200, it processes the paid service payment of the user terminal 200, and when the paid service payment processing is completed, the paid service is sent to the corresponding user terminal 200. A measurement mode selection window 260 in which the skin measurement mode of 262a is activated may be provided.

As such, the present invention may provide paid services for each skin measurement mode.

For example, the third skin measurement mode can be provided free of charge as a basic function, and the first skin measurement mode and the second skin measurement mode 2 can be charged separately or in a bundle so that the corresponding mode can be used when payment is completed. It may be activated, which is only an example, but is not limited thereto.

As described above, the present invention selects all or part of the light wavelength of the light source unit and all or part of the light receiving unit in the most efficient manner according to the skin measurement mode selected in the user terminal to obtain measurement values, thereby obtaining the skin conditions of various body parts. At the same time as analyzing the change, it is possible to manufacture a low-cost and ultra-small skin measuring device.

In addition, the present invention uses a low-cost, ultra-compact skin measuring device consisting only of a multi-wavelength near-infrared light source module and a plurality of light receiving devices without a special additional sensor, and simultaneously measures oxygen saturation and heart rate as well as two body indices: oxyhemoglobin, deoxyhemoglobin, It is possible to measure and analyze the amount of change of at least 4 substances such as fat and water.

In addition, the present invention is an analysis method using near-infrared rays, and it is possible to classify and analyze body components as much as the local area where light reaches. , neck, right upper arm, left thigh, etc.) has the advantage of being able to analyze and track changes in body composition, so it can be used as a complementary indicator with the bioelectrical impedance analysis method.

In addition, the present invention, as a non-medical device, is for measuring the change in body composition of a specific body part in daily life that does not require medical precision for the general public in the short and long term, using an infrared light source and a light receiver to measure oxygen saturation and It is possible to classify the ratios of two indicators of heart rate and four or more of the components of the skin of the corresponding area, and efficiently measure the amount of change.

In addition, according to the present invention, the target level of data can be extracted in the most efficient way even with a low-cost micro skin measuring device by changing the control method according to the characteristics of the body index and the body constituent material to be measured, and the present invention The control method of can be implemented by selecting a measurement mode according to a biomarker to be measured.

The method according to an embodiment of the present invention described above may be implemented as a program (or application) to be executed in combination with a server, which is hardware, and stored in a medium.

The above-described program is C, C++, C#, JAVA, JAVA, C, C++, C#, JAVA, which can be read by a processor (CPU) of the computer through a device interface of the computer, so that the computer reads the program and executes the methods implemented as a program. It may include code coded in a computer language such as machine language. These codes may include functional codes related to functions defining necessary functions for executing the methods, and include control codes related to execution procedures necessary for the processor of the computer to execute the functions according to a predetermined procedure. can do. In addition, these codes may further include memory reference related codes for which location (address address) of the computer's internal or external memory should be referenced for additional information or media required for the computer's processor to execute the functions. have. In addition, when the processor of the computer needs to communicate with any other remote computer or server in order to execute the functions, the code uses the computer's communication module to determine how to communicate with any other remote computer or server. It may further include communication-related codes for whether to communicate, what kind of information or media to transmit/receive during communication, and the like.

The storage medium is not a medium that stores data for a short moment, such as a register, cache, or memory, but a medium that stores data semi-permanently and is readable by a device. Specifically, examples of the storage medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc., but are not limited thereto. That is, the program may be stored in various recording media on various servers accessible by the computer or various recording media on the user's computer. In addition, the medium may be distributed to computer systems connected by a network, and computer readable codes may be stored in a distributed manner.

Steps of a method or algorithm described in connection with an embodiment of the present invention may be implemented directly in hardware, implemented in a software module executed by hardware, or implemented by a combination thereof. A software module may include random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM, or It may reside in any form of computer readable recording medium well known in the art to which the present invention pertains.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (15)

a skin measuring device that irradiates light onto the skin of the body and obtains a measurement value from the reflected light passing through the inside of the skin and being reflected; and,
And a user terminal for analyzing a change in the state of the skin or outputting an analysis result based on the measurement value received from the skin measuring device,
The skin measuring device,
Including a multi-wavelength light source unit and a plurality of light receiving units,
When a predetermined skin measurement mode is received from the user terminal, all or part of the light wavelength of the light source unit and all or part of the light receiving unit are selected based on the received skin measurement mode, and the selected light wavelength is applied to the skin. The personalized digital healthcare system, characterized in that for controlling the light source unit to irradiate light, and controlling the light receiving unit so that the selected light receiving unit receives the reflected light passing through the inside of the skin and being reflected. According to claim 1,
The skin measuring device,
When all or part of the light wavelength of the light source unit and all or part of the light receiving unit are selected, the number of light wavelengths to be used is selected according to the skin measurement mode, and at least one of the number and position of the light receiving unit receiving the reflected light is selected. Personalized digital healthcare system, characterized in that for selecting any one. According to claim 1,
The skin measuring device,
When selecting all or part of the light wavelength of the light source unit and all or part of the light receiving unit, at least one of the measurement number, measurement speed, and measurement time of the measurement value is selected according to the skin measurement mode. A personalized digital healthcare system that According to claim 1,
The skin measuring device,
If the obtained measurement values are plural, the plurality of measurement values are averaged to determine a final measurement value for each light wavelength and for each light receiving unit. According to claim 1,
The skin measuring device,
Personalized digital healthcare system characterized in that the obtained measurement value is transmitted at once or divided into bundles according to the communication environment. According to claim 1,
The user terminal,
Personalized digital healthcare system characterized in that when the skin measurement mode is selected corresponding to the user input, the selected skin measurement mode is transmitted to the skin measuring device. According to claim 1,
The user terminal,
The skin measurement mode is selected and transmitted to the skin measuring device, a measurement value is received from the skin measurement device, and biomarkers including oxygen saturation and heart rate based on the received measurement value and oxyhemoglobin, deoxyhemoglobin, and fat , Analyzing at least one of the body constituent substances including water, and outputting the condition change information of the skin in real time based on the analysis result. According to claim 1,
Personalized digital healthcare system, characterized in that further comprising a server for analyzing the change in the state of the skin based on the measurement value received from the skin measuring device. In the skin measuring device of the personalized digital healthcare system,
A communication unit that communicates with a user terminal or server;
a multi-wavelength light source unit for radiating light to the skin of the body;
a plurality of light receivers for obtaining a measurement value by receiving reflected light passing through the inside of the skin and being reflected; and,
A control unit for controlling the communication unit, the light source unit, and the light receiving unit,
The control unit,
When a predetermined skin measurement mode is received from the user terminal through the communication unit, based on the skin measurement mode, light wavelengths of all or part of the light source unit and all or part of the light receiving unit are selected, and the selected skin The light source unit is controlled to irradiate light with an optical wavelength, and the light receiver is controlled so that the selected light receiver receives the reflected light passing through the inside of the skin and obtains a measurement value, and the obtained measurement value is displayed as the Skin measuring device characterized in that for controlling the communication unit to transmit to a user terminal or server. In the terminal of the personalized digital healthcare system including the skin measuring device,
a communication unit that is communicatively connected to the skin measuring device;
a display unit displaying a measurement mode selection window for selecting a skin measurement mode and analysis result information;
an analyzer for analyzing a change in skin condition based on the measurement value received from the skin measuring device; and,
A control unit for controlling the communication unit, the display unit, and the analysis unit;
The control unit,
When communication is connected with the skin measuring device, the display unit is controlled to display a measurement mode selection window for selecting the skin measurement mode, and when a user input for selecting a predetermined skin measurement mode is received from the measurement mode selection window, the selected skin measurement is performed. The communication unit controls the communication unit to transmit a mode to the skin measuring device, and when a measured value corresponding to the selected skin measuring mode is received from the skin measuring device, the analysis analyzes a change in skin condition based on the received measured value. and controlling the display unit to display skin analysis result information analyzed by the analysis unit. According to claim 10,
The measurement mode selection window,
Includes a number of skin measurement mode items and a selection button corresponding to each item,
The control unit,
The terminal characterized by controlling the communication unit to transmit a skin measurement mode corresponding to the selection button to the skin measuring device when a user input is received through the selection button. According to claim 10,
The measurement mode selection window,
Includes a body shape showing the entire human body,
The control unit,
The terminal characterized by controlling the communication unit to transmit a skin measurement mode corresponding to the selected specific body part to the skin measuring device when a user input for selecting a specific body part from the body shape is received. In the server of a personalized digital healthcare system including a skin measuring device and a user terminal,
a communication unit that is communicatively connected to the skin measuring device and the user terminal;
a payment processing unit processing paid service payment of the user terminal;
an analyzer for analyzing a change in skin condition based on the measurement value received from the skin measuring device; and,
A control unit for controlling the communication unit, the storage unit, and the analysis unit;
The control unit,
When the user terminal requests to provide a measurement mode selection window for selecting a skin measurement mode, providing a measurement mode selection window in which only the skin measurement mode of the free service is activated and the skin measurement mode of the paid service is deactivated is provided to the corresponding user terminal, When a paid service payment request is received from the user terminal, the payment processing unit is controlled to process the paid service payment of the user terminal, and when the paid service payment processing is completed, the skin measurement mode of the paid service is activated in the corresponding user terminal. A server characterized in that it provides a measurement mode selection window. In the skin analysis method of a personalized digital healthcare system including a skin measuring device and a user terminal,
displaying, by the user terminal, a measurement mode selection window for selecting a skin measurement mode;
receiving, by the user terminal, a user input for selecting a predetermined skin measurement mode from the measurement mode selection window;
transmitting, by the user terminal, the selected skin measurement mode to the skin measuring device;
receiving, by the skin measuring device, the selected skin measuring mode from the user terminal;
Selecting, by the skin measuring unit, all or part of the light wavelength of the light source unit or part of the light source unit and all or part of the light receiving unit based on the received skin measurement mode;
obtaining a measurement value by controlling the light source unit so that the skin measuring device irradiates light with the selected light wavelength to the skin, and controlling the selected light receiving unit to receive the reflected light passing through the inside of the skin and being reflected;
Transmitting, by the skin measuring device, the obtained measurement value to the user terminal;
Receiving, by the user terminal, the measurement value from the skin measuring device; and
The skin analysis method comprising the step of displaying, by the user terminal, skin analysis result information by analyzing a change in skin condition based on the received measurement value. A computer program that provides a skin analysis method of a personalized digital healthcare system stored in a medium to perform the skin analysis method of claim 14 in combination with a computer that is hardware.

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