KR102042898B1 - Apparatus and method of obtaining the health information using multi-frequency bio-impedance measurement - Google Patents

Abstract

Provided is a health information acquisition device. The health information obtaining apparatus includes a measuring unit measuring body impedance of a subject at a plurality of frequencies and an interpolated curve defined by resistance (R) and reactance (X) by applying an interpolation method specified to the measured values of the body impedance. An interpolation unit for generating an interpolation unit, a calculation unit for calculating a frequency of a point at which the reactance becomes the maximum among the points existing on the interpolated curve as the center frequency of the body impedance, and a storage value in a specified database and the center frequency. It may include a determination unit for determining the health state of the subject by comparing at least one of the phase angle, resistance and reactance.

Description

Apparatus and method for obtaining health information using multi-frequency bioimpedance measurement {APPARATUS AND METHOD OF OBTAINING THE HEALTH INFORMATION USING MULTI-FREQUENCY BIO-IMPEDANCE MEASUREMENT}

The following embodiments relate to an apparatus and method for obtaining health information. More specifically, the present invention relates to an apparatus and a method for obtaining health information using multiple bioimpedance measurements.

In the field of bioimpedance measurement, there are a number of studies or papers utilizing data measured at specific frequencies. Conventional techniques tend to depend on a specific frequency, such as 50 kHz data being an important indicator or 100 kHz or 250 kHz data being an important indicator, based on research results.

However, this is because the frequency range at which significant data difference occurs varies depending on the measurement site or health condition of the subject. This requires a device to measure impedance data of different frequencies according to each measurement site or health condition. This exists.

Japanese Patent No. 5177177 is an invention relating to a method of obtaining a plurality of biometric parameters by analyzing impedance of a subject. Specifically, the above patent discloses a configuration for measuring impedance corresponding to a plurality of frequencies and plotting a trajectory corresponding to the measurements.

According to one side, a health information acquisition device is provided. The health information obtaining apparatus includes a measuring unit measuring body impedance of a subject at a plurality of frequencies and an interpolated curve defined by resistance (R) and reactance (X) by applying an interpolation method specified to the measured values of the body impedance. An interpolation unit for generating an interpolation unit, a calculation unit for calculating a frequency of a point at which the reactance becomes the maximum among the points existing on the interpolated curve as the center frequency of the body impedance, and a storage value in a specified database and the center frequency. It may include a determination unit for determining the health state of the subject by comparing at least one of the phase angle, resistance and reactance.

According to one embodiment, the determination unit checks the normal range of the phase angle, resistance and reactance extracted by sex or age from the database, and compares at least one of the phase angle, resistance and reactance of the subject with the normal range The cell aging and health state abnormality of the subject can be determined.

According to another embodiment, the determining unit compares at least one of the phase angle, resistance, and reactance of the subject with the normal range to obtain information on the human aging degree, diabetes, nutritional status, and chronic disease related to the subject. It can be judged as a state of health.

According to another embodiment, the calculator may determine whether the calculated center frequency is within a preset range, and the measurement unit may output a re-measurement message to the subject when the result of the verification is out of the predetermined range. .

According to yet another embodiment, the interpolation unit applies the interpolation method to the measured values including the resistance and the reactance, such as circle fitting, parabolic fitting, sinusoidal fitting, and polynomial. One of the (polynomial) fittings can be used to generate the interpolated curves.

According to another embodiment, the determination unit has a positive slope value within a section in which the range of the X axis value defined as the resistance in the interpolated curve becomes the smallest from the maximum and the straight line passing through the origin is interpolated. The health state may be determined using a phase angle and a frequency at a point in contact with a curve.

According to another embodiment, the calculator calculates a center frequency of each of the measurement parts including the left arm, the left leg, the right arm, and the right leg, and the determiner calculates at least one of the phase angle, reactance, and resistance calculated for each part. Comparative analysis may determine the health status for each part of the subject.

According to another aspect, a body impedance analysis method is provided. The method of analyzing the body impedance may be performed by applying an interpolation method specified to the body impedance of a subject measured at a plurality of frequencies to generate an interpolated curve defined by resistance and reactance, and reactance among points existing on the interpolated curve. And calculating the frequency of the maximum point as the center frequency of the body impedance.

According to an embodiment, the step of generating the interpolated curve may be performed by applying the interpolation method to the measured values including the resistance and the reactance, using circular fitting, parabolic fitting, and sinusoidal. And generating the interpolated curve using one of the 1) fitting and the polynomial fitting.

According to another embodiment, the body impedance analysis method may further include calculating at least one of a maximum phase angle, a maximum reactance, a maximum resistance, and a minimum resistance for the subject by using the interpolated curve. .

According to another embodiment, the body impedance analysis method has a positive slope value within a section in which the range of the X-axis value defined as the resistance in the interpolated curve becomes the smallest from the maximum and the straight line passing through the origin is Calculating a phase angle and a frequency at a point in contact with the interpolated curve.

According to another embodiment, the method of analyzing the body impedance may include checking whether the calculated center frequency is within a preset predetermined range, and when the result of the checking is out of the predetermined range, re-examine the body impedance to the subject. The method may further include outputting a measurement message.

According to another embodiment, the body impedance analysis method includes measuring body impedance at at least four frequencies, comparing the measured body impedance with points on the interpolated curve, and the result of the comparison. Accordingly, the method may further include outputting an error occurrence message to the subject when an error of more than a predetermined range exists in the measured body impedance.

According to yet another aspect, there is provided a computer-readable recording medium containing a program for generating health information using body impedance. The program applies an interpolation method specified to the measurements of the body impedance to generate an interpolated curve defined by resistance (R) and reactance (X), the reactance of points present on the interpolated curve. The health state of the subject by comparing the instruction set that calculates the frequency of the point at which is the maximum as the center frequency of the body impedance and the stored value in the designated database and at least one of phase angle, resistance and reactance corresponding to the center frequency. It may include a set of instructions for determining.

According to another aspect, there is provided a computer-readable recording medium containing a program for calculating a center frequency for the body impedance of a subject. The program applies an interpolation method specified to the body impedance of the subject measured at a plurality of frequencies to generate an interpolated curve defined by resistance and reactance, and a maximum of reactance points among the points present on the interpolated curve. And a set of instructions for calculating the frequency of the point to be the center frequency of the body impedance.

1 is a flowchart illustrating a method of generating health information using body impedance according to an exemplary embodiment.
2A is an exemplary diagram illustrating a process of calculating a center frequency using body impedance measured at a plurality of frequencies according to an embodiment.
2B is an exemplary view illustrating a process of calculating a center frequency using body impedance measured at a plurality of frequencies according to another embodiment.
3 is an exemplary view illustrating a process of determining a health state of a subject by using an interpolated curve by the health information obtaining apparatus.
4 is a block diagram illustrating an apparatus for obtaining health information according to an exemplary embodiment.
5A is an exemplary diagram illustrating a process of determining, by an apparatus for obtaining health information, a health state of a subject using age-specific average data, according to another exemplary embodiment.
FIG. 5B is a diagram for explaining a process of classifying a normal person and a diabetic patient by using the phase angle data, by the health information obtaining apparatus according to another embodiment.

Specific structural or functional descriptions of the embodiments are disclosed for purposes of illustration only, and may be practiced in various forms. Accordingly, the embodiments are not limited to the specific disclosure, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical idea.

Terms such as first or second may be used to describe various components, but such terms should be interpreted only for the purpose of distinguishing one component from another component. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

When a component is referred to as being "connected" to another component, it should be understood that there may be a direct connection or connection to that other component, but there may be other components in between.

Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprise" or "have" are intended to designate that the stated feature, number, step, operation, component, part, or combination thereof is present, but one or more other features or numbers, It is to be understood that it does not exclude in advance the possibility of the presence or addition of steps, actions, components, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined herein. Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same components will be given the same reference numerals regardless of the reference numerals, and duplicate description thereof will be omitted.

1 is a flowchart illustrating a method of generating health information using body impedance according to an exemplary embodiment. Referring to FIG. 1, in the method 100 of generating health information using body impedance, generating an interpolated curve defined by resistance and reactance using a body impedance of a subject measured at a plurality of frequencies (110). Calculating 120 a center frequency of the body impedance based on the interpolated curve, and using the interpolated curve, maximum phase angle (PA) and maximum reactance (PA) for the subject. , Calculating 130 at least one of a maximum resistance and a minimum resistance.

In operation 110, the apparatus for obtaining health information may measure body impedance of the subject at a plurality of frequencies. More specifically, the measurement unit in the health information acquisition device may measure the body impedance of the subject at least three frequencies. In the embodiment of FIG. 1, the apparatus for obtaining health information measures the body impedance of the subject at three frequencies, but this is merely an example for clarity and does not limit or limit the other embodiments. For example, the spirit of the present invention may include a health information acquisition device that generates an interpolated curve using data measured at three or more frequencies and obtains body impedance data through the interpolated curve.

For example, the measurement unit may be specified at each of a first frequency present in a range of 1 kHz to 10 kHz or less, a second frequency present in a range of 10 kHz to 100 kHz, and a third frequency present in a range of 100 kHz to 1000 kHz, respectively. Can measure the body's impedance. The aforementioned frequency ranges are merely illustrative for the purpose of understanding the invention and should not limit or limit other embodiments. The health information obtaining apparatus may measure the body impedance of the subject at a plurality of frequencies existing in various ranges according to predetermined conditions.

In operation 110, the apparatus for obtaining health information may generate an interpolated curve defined by resistance and reactance using the measured body impedance. By way of example, the interpolated curve may represent a two-dimensional curve that exists in a plane defined with resistance as the first axis and reactance as the second axis.

In operation 120, the apparatus for obtaining health information may calculate a center frequency of the body impedance based on the interpolated curve. In operation 130, the apparatus for obtaining health information may calculate at least one of the maximum phase angle, the maximum reactance, the maximum resistance, and the minimum resistance for the subject using the interpolated curve and the calculated center frequency. Hereinafter, the process of calculating the center frequency through the interpolated curve by the health information obtaining apparatus will be described in more detail with reference to the accompanying drawings.

2A is an exemplary diagram illustrating a process of calculating a center frequency using body impedance measured at a plurality of frequencies according to an embodiment. Referring to FIG. 2A, three body impedances 211, 212, 213 are shown measured from a subject at three different frequencies. The X axis of the graph shown in FIG. 2A represents resistance (Ω), and the Y axis represents reactance (Ω). The health information obtaining apparatus of the present embodiment may generate the interpolated curve 220 by applying the interpolation method specified to the three body impedances 211, 212, and 213. The interpolated curve 220 may be defined as resistance and reactance with respect to the body impedance of the subject.

For example, the apparatus for obtaining health information may generate an interpolated curve 220 by applying a circle fitting to the measured three body impedances 211, 212, and 213. The interpolated curve 220 of the present embodiment may be implemented as part of a circular trace.

The health information obtaining apparatus may calculate the frequency of the first point 230 at which the reactance becomes the maximum among the points existing on the interpolated circular trace as the center frequency of the body impedance.

The health information obtaining apparatus of the present embodiment can calculate the center frequency using the body impedance measured at least three or more frequencies, so that the effect of calculating the center frequency without dependency on a specific frequency can be expected. In the case of the conventional method, since the impedance data of the measured frequency is used as it is, there is a limit that the dependence of the measurement frequency is applied in the process of determining the health state. However, even if the health information acquisition apparatus of the present embodiment does not set a frequency suitable for a measurement site or a disease to be examined, the center frequency is calculated and the phase angle, reactance and resistance value corresponding to the center frequency are extracted. It can have the effect of determining and monitoring the disease of the subject. In addition, the impedance data at the center frequency is important because the reactance value at the center frequency is the largest. In detail, the apparatus for obtaining health information may use the extracted reactance value as an indicator for confirming cell activity indicating the health state of the cell. In addition, the health information obtaining apparatus may use the calculated phase angle as an indicator for simultaneously showing the resistance value and the reactance value. In accordance with the above process, the health information obtaining apparatus may generate various health information about the subject using the calculated impedance data at the center frequency.

In addition, the health information obtaining apparatus may extract not only the center frequency but also the ranges of the maximum phase angle, the maximum reactance, the center resistance, the maximum resistance, the minimum resistance, and the resistance as the information on the subject. Hereinafter, a process of extracting information about the subject by the health information obtaining apparatus will be described in detail.

2B is an exemplary view illustrating a process of calculating a center frequency using body impedance measured at a plurality of frequencies according to another embodiment. Referring to FIG. 2B, three body impedances 241, 242, 243 measured from the subject at three different frequencies are shown. In the graph of FIG. 2B, the X axis represents resistance (Ω) and the Y axis represents reactance (Ω).

The apparatus for obtaining health information according to the present exemplary embodiment may generate a interpolated curve 250 by applying a parabolic fitting to the measured three body impedances 241, 242, and 243. The interpolated curve 250 of this embodiment may be implemented as part of a parabolic trace. Similarly, the health information obtaining apparatus may calculate the frequency of the second point 260 at which the reactance becomes the maximum among the points existing on the interpolated parabola as the center frequency of the body impedance.

In the embodiment shown in FIGS. 2A and 2B, interpolation methods, such as circle fitting or parabolic fitting, are described, but these are merely illustrative descriptions to aid the understanding of the invention and limit or limit other embodiments. It should not be interpreted as. For example, the interpolation unit included in the health information acquisition device may generate an interpolated curve by applying various interpolation methods to measurement values including resistance and reactance. For example, interpolation methods such as sinusoidal fitting and polynomial fitting can be used.

3 is an exemplary view illustrating a process of determining a health state of a subject by using an interpolated curve by the health information obtaining apparatus. Referring to FIG. 3, three body impedances 311, 312, and 313 measured from the subject at three different frequencies are shown. In the graph of FIG. 3, the X axis represents resistance (Ω) and the Y axis represents reactance (Ω). The health information obtaining apparatus may generate an interpolated curve 320 by applying interpolation methods specified to the measured three body impedances 311, 312, and 313. The apparatus for obtaining health information may calculate the point 330 corresponding to the center frequency of the body impedance by using the points existing on the interpolated curve 320. For the process of calculating the center frequency of the body impedance by the health information acquiring apparatus, since the description described with reference to FIGS. 2A and 2B may be applied as it is, redundant descriptions will be omitted.

)(X는 리액턴스, R은 레지스턴스)가 최대인 지점의 위상각을 최대 위상각 PA_max으로 계산할 수 있다. 또한, 건강정보 획득 장치는 보간된 커브(320) 위에 존재하는 포인트들 중 Y 축 상의 최대값을 갖는 포인트의 리액턴스를 최대 리액턴스 X_max로 계산할 수 있다. 또한, 건강정보 획득 장치는 보간된 커브(320)가 그래프의 X 축과 만나는 지점의 최대값을 최대 레지스턴스 R_max로 계산할 수 있다. 또한, 건강정보 획득 장치는 보간된 커브(320)가 그래프의 X 축과 만나는 지점의 최소값을 최소 레지스턴스 R_min으로 계산할 수 있다. 또한, 건강정보 획득 장치는 보간된 커브(320)가 그래프의 X 축과 만나는 지점들 사이의 범위를 레지스턴스 범위로 계산할 수 있다.The health information obtaining apparatus may calculate at least one of the maximum phase angle, the maximum reactance, the maximum resistance, and the minimum resistance for the subject using the interpolated curve 320. The health information acquiring device uses arctan (point) among points existing on the interpolated curve 320.

The phase angle at the point where X is the reactance and R is the resistance can be calculated as the maximum phase angle PA _max . In addition, the health information obtaining apparatus may calculate the reactance of the point having the maximum value on the Y axis among the points existing on the interpolated curve 320 as the maximum reactance X _max . In addition, the health information obtaining apparatus may calculate the maximum value of the point where the interpolated curve 320 meets the X axis of the graph as the maximum resistance R _max . In addition, the health information obtaining apparatus may calculate the minimum value of the point where the interpolated curve 320 meets the X axis of the graph as the minimum resistance R _min . In addition, the health information obtaining apparatus may calculate a range between the points where the interpolated curve 320 meets the X axis of the graph as a resistance range.

In another embodiment, when an interpolated curve 320 having a circular trace is generated by using a circle fitting, the apparatus for obtaining health information may include the center coordinates R _C of the interpolated curve 320. , X _C ) and the length D of the radius.

The health information acquiring apparatus may calculate the health state in the subject by using at least one of the maximum phase angle, the maximum reactance, the maximum resistance, the minimum resistance, the center coordinates of the interpolated curve 320 and the length of the radius of the subject. Can be determined. More specifically, the health information obtaining apparatus checks the normal range of phase angle, resistance and reactance extracted by gender or age from a predetermined database, and at least one of the phase angle, resistance and reactance of the subject is determined by the normal range and the like. By comparison, the cell aging and health condition abnormality of the subject may be determined. Hereinafter, a process of determining the health state by using the apparatus for obtaining health information by using the center frequency of the subject's body impedance and various parameters corresponding thereto will be described in more detail.

4 is a block diagram illustrating an apparatus for obtaining health information according to an exemplary embodiment. Referring to FIG. 4, the health information obtaining apparatus 400 may include a measuring unit 410, an interpolator 420, a calculating unit 430, and a determining unit 440. The measurement unit 410 may measure the body impedance of the subject at a plurality of frequencies. In exemplary embodiments, the measuring unit 410 may include a plurality of electrodes. More specifically, the measuring unit 410 may include a first electrode for inputting a voltage or current signal of a predetermined size to the body of the subject. In addition, the measuring unit 410 may include a second electrode measuring a voltage or current signal measured from the body of the subject according to the applied voltage.

The interpolator 420 may apply an interpolation method specified to the measured values of the plurality of body impedances corresponding to the plurality of frequencies. Also, the interpolator 420 may generate an interpolated curve defined by the resistance R and the reactance X. Specifically, the interpolated curve may exist on a two-dimensional plane defined with the resistance R as the first axis and the reactance X as the second axis.

The calculator 430 may calculate the frequency of the point at which the reactance becomes the maximum among the points existing on the interpolated curve as the center frequency of the body impedance of the subject.

In addition, the calculator 430 may check whether the calculated center frequency is within a predetermined range. As a result of the checking, when the calculated center frequency is out of a predetermined range, the measuring unit 410 may output a re-measurement message to the subject. For example, the predetermined range may be set to 5 kHz or more and 250 kHz or less. When the calculated center frequency is out of the predetermined range, the measuring unit 410 may determine the measured body impedance as incorrectly measured data, delete the data, and request the subject to re-measure. The above predetermined ranges are merely illustrative for the purpose of understanding the invention and should not be construed as limiting or limiting the scope of other embodiments.

As another example, the calculator 430 may compare the interpolated curve with the measurement data acquired at the fourth or more frequency (fourth, fifth, sixth, etc.) measured by the measuring unit 410. When the measurement data exceeds a predetermined error range with respect to the interpolated curve according to the comparison result of the calculator 430, the measurement unit 410 may output a measurement error to the subject. For example, the predetermined error range may be set to about 10%. However, the above predetermined ranges are only illustrative descriptions to help understanding of the present invention, and should not be construed as limiting or limiting the scope of other embodiments.

The determination unit 440 may determine the health state of the subject by comparing at least one of a phase angle, resistance, and reactance corresponding to the stored value in the designated database and the center frequency. The determination unit 440 may check a normal range of phase angles, resistances, and reactances extracted from the database by gender or age. The determination unit 440 may determine a cell aging and a health condition abnormality of the subject based on a comparison result of at least one of the subject's phase angle, resistance, and reactance with the normal range. In detail, the determination unit 440 may determine the information about the human aging degree, diabetes, nutritional state, and chronic disease regarding the subject as the health state. In addition, the determination unit 440 may further determine a health condition such as edema, muscle strength, and inflammation of the subject according to the comparison result. The above description of the state of health is merely illustrative for the purpose of understanding and should not be construed as limiting or limiting other embodiments.

As another embodiment, the determination unit 440 may calculate a straight line passing through the origin with a positive slope value within a section in which the range of the X axis value defined as the resistance in the interpolated curve becomes the minimum to the maximum. Specifically, the straight line may exist in a two-dimensional plane defined by resistance and reactance with respect to the impedance of the subject. In addition, the determination unit 440 may determine the health state using the phase angle and the frequency at the point where the straight line is in contact with the interpolated curve.

In another embodiment, the measurement unit 410 may measure the body impedance of each measurement part including an arm, a left leg, a right arm, and a right leg. The calculator 420 may calculate a center frequency of each measurement part including the left arm, the left leg, the right arm, and the right leg using the measured body impedance. In this case, the determination unit 440 may determine at least one health state for each part of the subject by comparing and analyzing at least one of phase angles, reactances, and resistances calculated for each part.

5A is an exemplary diagram illustrating a process of determining, by an apparatus for obtaining health information, a health state of a subject using age-specific average data, according to another exemplary embodiment. Referring to FIG. 5A, average data stored in a memory included in the health information obtaining apparatus is illustrated. The X axis of the data graph of FIG. 5A represents age (years) and the Y axis represents extracellular secretion (ECW / TBW). In the present embodiment, extracellular secretion is presented as age-specific data stored in the memory, but this is merely an example for the purpose of understanding and should not be construed as limiting or limiting other embodiments. For example, the health information acquiring device includes body fat amount, visceral fat cross-sectional area, body fat amount by region, abdominal fat percentage, visceral fat level, body water content, intracellular water content, extracellular water content, intracellular fluid amount, extracellular fluid amount, Various average data such as extracellular water secretion, extracellular fluid ratio, fat free mass index (FFMI), lean body mass, skeletal muscle mass and site-specific muscle mass can also be used.

For example, the apparatus for obtaining health information may correspond to a first normal range 511 of extracellular moisture secretion corresponding to an average of 50 years old, a second normal range 512 of extracellular secretion corresponding to an average of 55 years old and an average of 60 years old. Third normal range 513 of extracellular secretion, fourth normal range 514 of extracellular secretion corresponding to an average age of 65, fifth normal range 515 of extracellular secretion corresponding to an average age of 70, and mean And a sixth normal range 516 of extracellular secretion corresponding to age 75.

The apparatus for obtaining health information may identify a normal range corresponding to the gender and age of the subject who measured the body impedance. If the age of the subject to be measured in the present embodiment is 50 years old, the health information obtaining apparatus checks whether the measurement data 520 of the subject is included in the first normal range 511 to determine the You can check your health. For example, the health information obtaining apparatus may determine the cell aging and the abnormal state of health of the subject through the comparison result.

In the case of Figure 5a is described for the process of confirming the extracellular moisture secretion for the entire body, the health information acquisition device of the present embodiment, such as the left arm, left leg, right arm, right leg, body angles, reactance and resistance for each body part Comparative analysis may provide the user with health information about the arms and legs or the left and right sides, respectively.

FIG. 5B is a diagram for explaining a process of classifying a normal person and a diabetic patient by using the phase angle data, by the health information obtaining apparatus according to another embodiment. Referring to FIG. 5B, a phase angle range 531 of a normal person and a phase angle range 532 of a diabetic patient are stored in a memory included in the health information acquisition device. The X axis of the data graph of FIG. 5B represents a data index, and the Y axis represents a phase angle deg. In FIG. 5B, an example in which a phase angle range 531 of a normal person and a phase angle range 532 of a diabetic patient are calculated one by one is shown, but this is merely an exemplary description to help understanding of the present invention. It should not be interpreted as. For example, the health information obtaining apparatus may calculate and store a phase angle range of a normal person and a phase angle range of a diabetic patient according to each age and gender of a subject in advance.

In exemplary embodiments, the apparatus for obtaining health information may extract phase angle data for each subject to which body impedance is measured. For example, when the first phase angle data 540 is extracted from the subject, the health information obtaining apparatus confirms that the first phase angle data 540 exists within the phase angle range 531 of the normal person. The subject can be judged normal. In addition, when the second phase angle data 550 is extracted from the subject, the health information acquiring apparatus confirms that the second phase angle data 550 exists within the phase angle range 532 of the diabetic patient. The sample may be considered diabetic.

The embodiments described above may be implemented as hardware components, software components, and / or combinations of hardware components and software components. For example, the devices, methods, and components described in the embodiments may include, for example, processors, controllers, arithmetic logic units (ALUs), digital signal processors, microcomputers, field programmable gates (FPGAs). It may be implemented using one or more general purpose or special purpose computers, such as an array, a programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to the execution of the software. For convenience of explanation, one processing device may be described as being used, but one of ordinary skill in the art will appreciate that the processing device includes a plurality of processing elements and / or a plurality of types of processing elements. It can be seen that it may include. For example, the processing device may include a plurality of processors or one processor and one controller. In addition, other processing configurations are possible, such as parallel processors.

The software may include a computer program, code, instructions, or a combination of one or more of the above, and configure the processing device to operate as desired, or process it independently or collectively. You can command the device. Software and / or data may be any type of machine, component, physical device, virtual equipment, computer storage medium or device in order to be interpreted by or to provide instructions or data to the processing device. Or may be permanently or temporarily embodied in a signal wave to be transmitted. The software may be distributed over networked computer systems so that they may be stored or executed in a distributed manner. Software and data may be stored on one or more computer readable recording media.

The method according to the embodiment may be embodied in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium. Computer-readable media may include, alone or in combination with the program instructions, data files, data structures, and the like. Program instructions recorded on the computer readable medium may be those specially designed and constructed for the purposes of the embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

Although the embodiments have been described with reference to the accompanying drawings, those skilled in the art may apply various technical modifications and variations based on the above. For example, the described techniques may be performed in a different order than the described method, and / or components of the described systems, structures, devices, circuits, etc. may be combined or combined in a different form than the described method, or other components. Or even if replaced or substituted by equivalents, an appropriate result can be achieved.

Claims (15)

A measuring unit measuring a body impedance of the subject at a plurality of frequencies;
An interpolation unit for generating an interpolated curve defined by resistance (R) and reactance (X) by applying an interpolation method specified to the measured values of the body impedance;
A calculator configured to calculate a frequency of a point at which the reactance becomes maximum among points existing on the interpolated curve as a center frequency of the body impedance; And
Determination unit for determining the health state of the subject by comparing at least one of the phase angle, resistance and reactance corresponding to the stored value in the specified database and the center frequency
Including,
The calculation unit,
Comparing the interpolated curves with body impedances obtained at the plurality of frequencies and at different frequencies,
The measuring unit,
Based on a result of the comparison, outputting an error occurrence message in response to a case where an error of a predetermined range or more exists between the obtained body impedance and the interpolated curve,
Health information acquisition device.
The method of claim 1,
The determination unit checks the normal range of phase angle, resistance and reactance extracted by sex or age from the database, and compares at least one of the phase angle, resistance and reactance of the subject with the normal range of cells of the subject. Health information acquisition device to determine the aging and health conditions abnormality.
The method of claim 2,
The determination unit compares at least one of the phase angle, resistance, and reactance of the subject with the normal range to determine health information regarding the human aging degree, diabetes, nutritional status, and chronic disease of the subject as the health state. Acquisition device.
The method of claim 1,
And the calculator determines whether the calculated center frequency is within a predetermined range, and the measuring unit outputs a re-measurement message to a subject when the result of the check is out of the predetermined range.
The method of claim 1,
The interpolation unit applies one of circle fitting, parabolic fitting, sinusoidal fitting, and polynomial fitting by applying the interpolation method to the measured values including the resistance and the reactance. Health information acquisition device to generate the interpolated curve.
The method of claim 1,
The determining unit has a positive slope value within a range where the range of X-axis values defined as the resistances in the interpolated curve becomes maximum to minimum, and a phase angle at a point where a straight line passing through the origin contacts the interpolated curve. And a health information obtaining device determining the health state using a frequency.
The method of claim 1,
The calculation unit calculates a center frequency of each of the measurement parts including the left arm, the left leg, the right arm, and the right leg, and the determination unit compares and analyzes at least one of phase angle, reactance, and resistance calculated for each part of the subject. Health information acquisition device to determine the health status for each part.
Measuring the body impedance of the subject at a plurality of frequencies;
Applying an interpolation method specified to the measured body impedance to generate an interpolated curve defined by resistance and reactance;
Calculating a frequency of a point at which a reactance becomes maximum among points existing on the interpolated curve as a center frequency of the body impedance
Comparing the interpolated curves with body impedances obtained at different frequencies from the plurality of frequencies; And
Based on a result of the comparison, outputting an error occurrence message in response to a case where an error of a predetermined range or more exists between the obtained body impedance and the interpolated curve
Body impedance analysis method comprising a.
The method of claim 8,
Generating the interpolated curve,
The interpolation method is applied to the measured values including the resistance and the reactance, and the interpolation is performed using one of circle fitting, parabolic fitting, sinusoidal fitting, and polynomial fitting. To create a curved curve
Body impedance analysis method comprising a.
The method of claim 8,
Calculating at least one of a maximum phase angle, a maximum reactance, a maximum resistance, and a minimum resistance for the subject using the interpolated curve
Body impedance analysis method further comprising.
The method of claim 8,
In the interpolated curve, the phase angle and frequency at the point where the straight line passing through the origin are in contact with the interpolated curve have a positive slope value within a section where the range of the X axis value defined as the resistance becomes from the maximum to the minimum. Calculation step
Body impedance analysis method further comprising.
The method of claim 8,
Checking whether the calculated center frequency is within a predetermined range; And
Outputting a re-measurement message about the body impedance to the subject when the result of the confirmation is out of the predetermined range;
Body impedance analysis method further comprising.
The method of claim 8,
Generating the interpolated curve,
Generating the interpolated curve using data measured at three or more frequencies
Including,
The comparing step,
Comparing the points on the interpolated curve with the body impedance obtained at a fourth or higher frequency
Body impedance analysis method further comprising.
A computer-readable recording medium containing a program for generating health information using body impedance, the program comprising:
An instruction set for generating an interpolated curve defined by resistance (R) and reactance (X) by applying an interpolation method specified to the measurements of the body impedance measured at a plurality of frequencies;
An instruction set for calculating a frequency of a point at which the reactance becomes the maximum among points existing on the interpolated curve as a center frequency of the body impedance;
A set of instructions for comparing a stored value in a designated database with at least one of phase angle, resistance, and reactance corresponding to the center frequency to determine a health state of the subject;
A set of instructions for comparing the interpolated curves with body impedances obtained at different frequencies from the plurality of frequencies; And
Based on a result of the comparison, an instruction set for outputting an error occurrence message in response to a case where an error of a predetermined range or more exists between the obtained body impedance and the interpolated curve
Computer-readable recording medium comprising a.
A computer-readable recording medium containing a program for calculating a center frequency for a body impedance of a subject, the program comprising:
A set of instructions for applying an interpolation method specified to the body impedance of the subject measured at the plurality of frequencies to generate an interpolated curve defined by resistance and reactance;
A set of instructions for calculating a frequency of a point at which a reactance becomes maximum among points existing on the interpolated curve as a center frequency of the body impedance;
A set of instructions for comparing the interpolated curves with body impedances obtained at different frequencies from the plurality of frequencies; And
Based on a result of the comparison, an instruction set for outputting an error occurrence message in response to a case where an error of a predetermined range or more exists between the obtained body impedance and the interpolated curve
Computer-readable recording medium comprising a.

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