KR101063594B1 - Abdominal visceral fat measuring device - Google Patents

Abstract

The present invention relates to an abdominal visceral fat measuring device that can accurately and simply measure the abdominal visceral fat distributed in a part of a specific part of the human body using the body impedance.

Abdominal visceral fat measuring apparatus of the present invention comprises a belt made of elastic fibers; A plurality of first electrodes installed in the belt to provide an input current into the body of the subject; A plurality of second electrodes disposed in the belt and disposed alternately with the first electrodes, respectively, and outputting a voltage provided from the body in response to the current; And a controller configured to provide a current to the first electrodes, detect a voltage output from the second electrodes, and calculate an abdominal visceral fat amount of the body using the current and the voltage. .

The present invention can stably measure the body impedance irrespective of the size of the waist circumference of the subject by implementing a belt for measuring the body impedance using elastic fibers. In addition, by using a fiber whose resistance varies depending on elasticity, a belt for measuring the impedance is implemented or a strain gauge is installed on the surface of the belt for measuring the impedance to stabilize the waistline of the subject regardless of the size of the waistline of the subject. In addition, there is no limit to the number of times the use of the measuring device, economical, there is no side effect to the human body, and can always obtain a constant measurement data regardless of the skill of the operator.

Abdominal visceral fat, body impedance, bioelectrical resistance analysis, belt

Description

Abdominal visceral fat measuring device {APPARATUS FOR MEASURING ABDOMINAL VISCERAL ADIPOSE}

The present invention relates to an apparatus for measuring abdominal visceral fat, and more particularly, to provide an abdominal visceral fat which allows a measurer to accurately and easily measure abdominal visceral fat distributed in a part of a specific part of a human body using a chamber impedance. It relates to a fat measuring device.

Body fat causes various diseases such as stroke, hypertension, hyperlipidemia, heart disease, joint pain, low back pain and diabetes, and also shortens lifespan. In particular, abdominal visceral fat is the most important risk factor for various metabolic diseases such as ischemic heart disease (myocardial infarction, angina pectoris), cerebrovascular disorders (cerebral infarction, cerebral hemorrhage), insulin-independent diabetes and malignant tumors in women. Therefore, it is important to prevent the disease early by measuring the abdominal visceral fat.

The abdominal visceral fat can be measured using the Callis method, the CT (Computed Tomography) method, the Dual Energy X-ray Absorptiometry (DEXA) method, the Magnetic Resonance Imager (MRI) method, and the ultrasound. The method of measurement has been applied. However, these methods have the disadvantage of being cumbersome and costly because expensive equipment must be operated and measured by an expert at a designated place.

In order to compensate for these drawbacks, a body fat measurement apparatus using bioelectrical resistance analysis has been proposed. The body fat measuring device regards the human body as a kind of resistance, flows a constant current to the human body measuring part, detects the potential difference at this time, calculates the resistance value, calculates the resistance value and the body information of the subject (gender, age, waist). Body fat percentage) is calculated using the circumference and the like.

When the body fat measuring device obtains an estimated value of the visceral fat area, the subject's body information including the actual value of the abdominal visceral fat area of the sample human body and the waist circumference are taken from a plurality of randomly selected people. Statistically, the correlations were determined to determine the specific relationship between waistline and abdominal fat area of the subject. However, since the body fat measuring apparatus according to the related art is configured to input all the body information of the subject including the waist circumference of the subject in order to obtain the abdominal visceral fat area, there is a hassle to always recognize the exact waist circumference. .

In order to solve this problem, the present invention proposes a belt electrode device for measuring impedance as a device for measuring directly without inputting the waist circumference. This device takes the form of a belt in which electrodes are arranged with fixed arrangement and spacing, and a belt is attached to the abdomen to directly measure waist circumference.

Although the belt electrode device for measuring body impedance has been studied in part in the prior art, the belt electrode device for measuring the body impedance according to the prior art does not consider the difference between a subject having a small waist circumference and a relatively large subject. There was a limit to finding fat area.

The present invention has been made in an effort to solve the above problems, and provides an apparatus for measuring abdominal visceral fat that can stably measure a chamber impedance and a waist circumference regardless of the size of the waist circumference of the subject. will be.

Another technical problem to be achieved by the present invention is to provide an abdominal visceral fat measuring device which is unlimited in the number of uses of the measuring device, is economical, and has no side effects on the human body.

Another technical problem to be solved by the present invention is to provide an abdominal visceral fat measuring device which is easy to operate and can always obtain constant measurement data regardless of the skill of the measurer.

According to an aspect of the present invention, there is provided a belt made of a fiber having elasticity, a plurality of first electrodes configured to provide an electric current installed in the belt and input into the body of the subject, and within the belt. A plurality of second electrodes disposed alternately with the first electrode and outputting a voltage provided from the body in response to the current, and providing a current to the first electrodes, The present invention provides a device for measuring abdominal fat, comprising detecting a voltage output from electrodes and calculating a abdominal fat amount of the body using the current and the voltage.

In addition, the present invention in the abdominal visceral fat measuring apparatus including at least a belt is provided with a plurality of first electrodes for supplying a fine current and a second electrode for detecting a voltage, the first electrodes are installed in pairs in the belt, A plurality of pairs are mounted on the belt, the left and right symmetrical with respect to the alignment line located in the middle of the body, the second electrode is installed in pairs in the belt, a plurality of pairs are mounted on the belt, based on the alignment line Are arranged symmetrically with respect to each other, and the pair of second electrodes are symmetrically disposed with respect to the alignment line, and the pair of first electrodes are symmetrically disposed with respect to the alignment line with respect to the outside of the pair of second electrodes. And a pair of second electrodes disposed symmetrically with respect to the alignment line to the outside of the pair of first electrodes, and outward of the other pair of second electrodes. Another pair of first electrodes provides a device for measuring abdominal visceral fat, characterized in that the left and right symmetrical arrangement with respect to the alignment line.

The belt is characterized in that made of a fiber having elasticity.

Generates and outputs a first electrode control signal for providing current to the first electrodes, receives a voltage detected at the second electrodes, and outputs a current value provided at the electrodes and a voltage value received at the second electrodes. It characterized in that it further comprises a control unit having at least a central processing unit for calculating the body impedance to calculate the amount of abdominal visceral fat.

The control unit is located on the belt, the display unit for displaying the result of the operation processing in the central processing unit; And an input unit configured to input body information of a subject and set a measurement mode.

The control unit may further include an output port unit for transmitting data to an external computer or a printer by wire or wirelessly.

The belt is characterized in that the piezo resistive fabric (resistance of the piezo resistive fabric) is changed according to the change of elasticity to measure the circumference of the body.

The belt is characterized in that a strain gage is attached to the surface to measure the circumference of the body.

The interval between the first and second electrodes is characterized in that it increases at a constant rate toward the center of the belt.

The first and second electrodes may be alternately arranged in the order of the second electrode and the first electrode on both the left and right sides with respect to the alignment line provided at the center of the belt.

The control unit may be installed inside the belt or outside the belt.

The control unit may include: a current supply control unit generating the constant current and supplying the first electrode to the first electrode; and a voltage detection preprocessor for detecting and amplifying the voltage output from the second electrode and the first electrode from the current supply unit. And a central processor configured to calculate a body impedance by using the current provided to the second electrode and the voltage detected by the voltage detector.

The control unit may include an input unit for providing body information of the subject to the central processing unit, an output unit for outputting an output signal output from the central processing unit, a storage unit for storing data processed by the central processing unit, and the voltage detection unit. It further comprises an analog-to-digital converter for converting the detected analog signal into a digital signal.

The output unit may include a display unit or a print unit.

The central processing unit calculates the impedance corresponding to the total fat amount using current and voltage detected through the first and second electrodes positioned near both sides of the body, and is located close to the navel of the body. The body impedance corresponding to the subcutaneous fat amount is calculated by using the current and voltage detected through the first and second electrodes, the value obtained by subtracting the body impedance corresponding to the total fat amount and the body impedance corresponding to the subcutaneous fat amount and the The abdominal visceral fat is calculated using the body information of the subject.

The central processor calculates abdominal visceral fat mass using a multiple regression formula.

The belt is characterized in that the holder is provided with the end portion is fastened to each other.

The first and second electrodes are installed to be detachable from the belt.

According to another aspect of the present invention to achieve the above object, in the state in which the alignment line of the belt is matched to the navel of the subject, the belt uses a property of changing resistance according to elasticity, or is attached to the belt surface. Waist circumference measurement step of measuring the waist circumference of the subject using a strain gauge, after the waist circumference measurement step, the body information input step of inputting the body information through the input unit, after the body information input step, located on both sides of the body Supplying a constant current through the first electrode, and detecting the voltage output through the second electrode located close to it, the total fat mass corresponding step of measuring the body impedance corresponding to the total amount of abdominal fat, and measuring the total fat mass After the step of measuring impedance, the constant current is supplied again through the first electrodes positioned at both the left and right sides of the navel of the body. , A subcutaneous fat corresponding body impedance measurement step of detecting a voltage output through a second electrode located close thereto and measuring a body impedance corresponding to the subcutaneous fat using the detected voltage, a subcutaneous fat corresponding body impedance measuring step Subsequently, the abdominal visceral fat response corresponding chamber impedance calculation step of calculating the subcutaneous fat response corresponding to the subcutaneous fat mass by finally subtracting the body impedance corresponding to the subcutaneous fat mass from the bodily impedance corresponding to the total fat amount, and calculating the bodily impedance corresponding abdominal fat mass amount Thereafter, using the body impedance corresponding to the abdominal visceral fat mass and the body information of the measurer (abdominal visceral fat measuring device user), the abdominal visceral fat calculation step of calculating the abdominal visceral fat amount of the measurer Provide a method of measuring fat.

According to the present invention, it is possible to stably measure the body impedance regardless of the size of the waist circumference of the subject by implementing the body impedance measuring belt using the elastic fiber. In addition, by implementing the belt for measuring the body impedance using a fiber whose resistance varies depending on the elasticity or by installing a strain gauge on the surface of the belt for measuring the body impedance, the waist of the subject is measured regardless of the size of the waist of the subject. It is possible to measure stably, and there is no limit on the number of times of use of the measuring device, it is economical, there is no side effect on the human body, and the same measuring data can be obtained at all times regardless of the skill of the measurer.

Hereinafter, the configuration and operation of the abdominal visceral fat measuring apparatus according to an embodiment of the present invention will be described in detail with the accompanying drawings.

1 to 3 are diagrams for explaining the abdominal visceral fat measuring apparatus according to an embodiment of the present invention, Figure 1 is a front view of the state worn on the body of the subject from the front, Figure 2 Figure 3 is a cross-sectional view of the abdominal visceral fat measuring device shown in Figure 3 is a plan view from above to expand the abdominal visceral fat measuring device separated from the body.

1 to 3, an abdominal visceral fat measuring apparatus according to an embodiment of the present invention includes a belt 110, a plurality of first electrodes 112, a second electrode 114, and a controller 120. .

 Belt 110 is mounted on the waist, made of a fiber having elasticity. Piezo-resistant fabrics can be used as the elastic fibers.

The first electrode 112 is a pair of electrodes that are provided in the belt 110 to provide a minute current input into the body 100 of the subject to be measured, are installed in pairs, a plurality of pairs are mounted on the belt 110, It may be arranged to be symmetrical with respect to the alignment line 116 located in the middle.

The second electrode 114 is an electrode that detects the voltage provided from the body 100 in response to the current flowing through the body by the first electrode 112, and is installed in the belt 110 in pairs. The electrode 114 is alternately disposed with the first electrode 112. The second electrode 114 may be positioned such that the plurality of pairs are mounted on the belt 110 and symmetrically with respect to the alignment line 116 positioned at the middle of the body.

The controller 120 provides a current to the first electrodes 112, detects a voltage output from the second electrodes 114, and calculates an abdominal fat amount of the body 100 using the current and the voltage. . Although the control unit 120 is located in the rear part (back part of the body) of the belt 110 in FIG. 2, etc., this is for ease of explanation, and the control unit 120 may be located anywhere above the belt 110. The control unit 120 includes a central processing unit 123, a display unit 128, an input unit 125, an output port (not shown), and the like.

The central processing unit 123 receives a set value input to the input unit 125, generates and outputs a first electrode control signal for supplying current to the first electrodes, and receives a voltage detected by the second electrodes. By using the current value provided from the electrodes and the voltage value received from the second electrodes, the body impedance is obtained to calculate the amount of abdominal visceral fat.

The display unit 128 displays the result of the operation processing in the central processing unit 123.

The input unit 125 receives various information such as ID information, for example, ID, height, weight, age, sex, test date, etc. of the subject to be provided to the central processing unit 12, and the input unit 125 is the central processing unit 123. Receives a control signal (including configuration) to control That is, the input unit 125 sets a measurement mode or the like. According to the measurement mode, the central processing unit 123 is determined by a predetermined first electrode pair provided with a current and a predetermined second electrode pair that detects a voltage.

In detail, the belt 110 is made of a fiber whose intrinsic resistance changes according to a change in elasticity in order to measure the circumference of the body 100 of the subject to be measured. For example, a piezo resistive fabric may be used as a fiber whose inherent resistance value changes according to a change in elasticity. As is well known, piezo-resistive fibers have elastic properties, which are inherent in their properties, and are elastic. Also, piezo-resistive fibers have a characteristic of lowering the resistivity of fibers as the fibers are stretched from their original lengths. Therefore, when a constant current is passed through the fiber, the voltage value passing through the fiber is changed by the change of the resistivity according to the degree of the fiber stretching, and the change in the length of the belt 110 can be measured by measuring the changed voltage value. have. That is, the sum of the original length and the extended length of the belt 110 becomes the circumference of the body 100.

4 is a block diagram illustrating the configuration of the controller 120 shown in FIG. 1. The control unit 120 includes a voltage detection preprocessor 121, a current supply control unit 122, a central processing unit 123, an analog-to-digital converter 124, an input unit 125, and an output unit 126. ) And a storage unit 127.

The voltage detection preprocessor 121 detects the voltage output from the second electrodes 114a, 114b,..., That is, the second electrode unit 140, and performs preprocessing such as noise removal and amplification. The voltage detection preprocessor 121 outputs from the second electrodes 114a, 114b,... In response to a constant current supplied from the current supply controller 122 to the body 100 through the first electrode unit 150. To detect the voltage. In this case, the voltage detected by the voltage detection preprocessing unit 121 is an analog signal, and is a voltage signal having body impedance information corresponding to the total abdominal fat amount and body impedance information corresponding to the subcutaneous fat amount.

In addition, when the belt 110 is made of a fiber whose resistance changes according to elasticity, the voltage detection preprocessor 121 may detect a voltage output directly from the belt 110 to measure the length of the belt 110. . To this end, the voltage detection preprocessor 121 is connected to one end of the belt 110. In this case, a connection between the voltage detection preprocessor 121 and the second electrode 114a, 114b, ... or the voltage detection preprocessor 121 and the belt 110 is provided through a separate switching element (not shown). Proper control must be available.

The current supply controller 122 generates and provides a constant current to the first electrodes 112a, 112b,... The current supply controller 122 may include a sinusoidal wave generator or a feedback constant current generator. The sinusoidal wave generator generates a sinusoidal wave having a frequency between 1 KHz and 1 MHz by the AC constant current control signal received from the central processing unit 123. For example, by using a multiple frequency of 1KHz ~ 1MHz it is possible to measure the amount of intracellular / external fluid as well as the amount of water in the entire body (100). In addition, an AC current of 50 KHz, a low frequency of 1 KHz to 5 KHz, and a high frequency current of 100 KHz to 500 KHz can be used. The feedback constant current generator can provide a constant current of 450 mA or less, regardless of the load, in the frequency range of 1KHz to 1MHz for the impedance measurement.

In addition, the current supply control unit 122 may supply a constant current to the belt 110 in order to measure the length of the belt 110 when the belt 110 is made of a fiber whose resistance changes according to elasticity. To this end, the current supply controller 122 is connected to one end of the belt 110 like the voltage detection preprocessor 121. In this case, the connection between the current supply control unit 122 and the second electrode 112 or the current supply control unit 122 and the belt 110 should be properly controlled through a separate switching element (not shown).

The central processing unit 123 performs a function of controlling the overall operation of the control unit 120. The central processing unit 123 calculates abdominal visceral fat amount using the body impedance detected through the voltage detection preprocessor 121 and the body information input through the input unit 125. For example, the total abdominal fat amount is calculated by using the body impedance detected through the first and second electrodes 112 and 114 positioned close to the sides of the body 100, and is close to the navel of the body 100. The abdominal subcutaneous fat amount is calculated by using the body impedance detected through the first and second electrodes 112 and 114 positioned in the above manner, and the value obtained by subtracting the body impedance of the abdominal subcutaneous fat amount from the total impedance of the abdominal fat amount and the input unit ( The abdominal visceral fat amount is calculated by using the body information of the subject.

The analog-digital converter 124 converts the analog signal detected by the voltage detection preprocessor 121 into a digital signal and provides it to the central processor 123. The voltage detected by the voltage detection preprocessor 121 is detected as an analog signal, which is converted into a digital signal and output.

The input unit 125 is provided to the outside of the belt 110 to be operated by the measurer or the subject. The input unit 125 receives various information such as ID information, for example, ID, height, weight, age, gender, test date, etc., and provides the information to the central processing unit 12. In addition, the input unit 125 receives a control signal (including environment setting) for controlling the central processing unit 123.

The output unit 126 includes a display unit 128 and an output port 130.

The display unit 128 may be installed in the belt 110. In this case, the display unit 128 may be displayed to the outside of the belt 110 together with the input unit 125, and may be a liquid crystal display (LCD) display or an LED (light emitting). The display device may be implemented as a diode display device or a plasma display panel display. The display unit 128 displays the analysis result output from the central processing unit 123 on the screen. The display unit 128 may be provided with an environment in which a user can exchange information through a graphic by using a graphical user interface (GUI). Through this, two-way communication is possible instead of one-way, so that the operator can perform work using only a mouse. can do.

The output port unit 130 is an output port for transmitting data to an external computer or a printer by wire or wirelessly.

The printer unit is located outside the belt 110 and is connected to the output port unit and the connector to print the analysis result output from the central processing unit 123.

The storage unit 127 stores the input items such as the subject's body information and the result data processed by the central processing unit 123. The information can be stored sequentially in the inspection order. When reading the stored information, the information can be read sequentially or out of order (random).

5 is a cross-sectional view showing an abdominal visceral fat measuring apparatus according to another embodiment of the present invention, Figure 6 is a plan view showing the abdominal visceral fat measuring apparatus shown in FIG.

The control unit 120 shown in FIGS. 1 to 3 and the control unit 220 shown in FIGS. 5 and 6 differ only in positions provided with each other, and have the same structure in the configuration. That is, in the control unit 120 illustrated in FIGS. 1 to 3, the control unit is positioned on the belt 110, and in some cases, after the measurer mounts the belt 110, data is input to the input unit 125 of the control unit 220. It is difficult to enter, and also difficult to check the amount of visceral fat of their stomach. Therefore, in order to solve this problem, in FIG. 5 and FIG. 6, the control unit is connected through a separate signal line connected to the belt 110, so that it is easier for a measurer to use. 5 and 6, unexplained '212' is the first electrode, '214' is the second electrode, '228' is the display, '225' is the input, '218' is Holder, '216' is an alignment line.

7 is a flowchart illustrating a method for measuring abdominal visceral fat according to an embodiment of the present invention. A method of measuring abdominal visceral fat will be described with reference to FIGS. 1 to 4.

Referring to Figure 7, first, the belt 110 is worn on the waist circumference of the body 100 of the subject (S71). At this time, the alignment line 116 of the belt 110 is positioned to align with the navel of the subject.

Thereafter, it is checked whether the alignment line 116 of the belt 110 is aligned with the navel of the subject (S72). If the alignment line 116 of the belt 110 is not aligned with the navel of the subject, the operation of separating the belt 110 from the body 100 and performing the alignment is repeatedly performed until the alignment is completed.

When the alignment line 116 of the belt 110 coincides with the navel of the subject in step S72, the waist circumference of the subject is measured (S73). In this case, the waist circumference measurement method is measured using a characteristic that the resistance of the belt 110 changes depending on the elasticity, or using a strain gauge attached to the belt 110 surface.

For example, a method of using a property in which resistance changes according to elasticity is described as follows. First, the constant current is supplied to one side of the belt 110 worn on the body 100 through the current supply control unit 122 and then the voltage output to the other side of the belt 110 is applied to the voltage detection preprocessor 121. To detect. The detected voltage is transmitted to the central processing unit 123, and the central processing unit 123 measures the waist circumference by measuring the change in the length of the belt 110 using the detected voltage.

Then, it is checked whether the waist circumference is measured (S74). If the waist circumference has not been measured, the process is fed back to step S73 and repeatedly performed until the waist circumference is measured.

When the waist circumference is measured in step S74, the body information is input through the input unit 125 (S75). The central processing unit 123 receives and processes the body information input from the input unit 125. In this case, the body information may include various information such as ID, height, weight, age, sex, test date, test frequency, etc., except for the information on the waist circumference already measured.

Thereafter, the body impedance corresponding to the amount of abdominal visceral fat is measured (S76). First, the constant current is supplied through the first electrodes 112 located at both sides of the body 100, and the voltage output preprocessing unit 121 outputs a voltage output through the second electrode 114 located close thereto. The central processor 123 measures the body impedance corresponding to the total abdominal fat amount using the detected voltage. Then, the constant current is supplied again through the first electrodes 112 positioned on both the left and right sides of the navel of the body 100, and the voltage outputted through the second electrode 114 located near the detection is detected. The central processing unit 123 measures the body impedance corresponding to the subcutaneous fat using the detected voltage. Then, the central processing unit 123 subtracts the body impedance corresponding to the subcutaneous fat from the body impedance corresponding to the total fat amount, and finally calculates the body impedance corresponding to the abdominal visceral fat amount.

Thereafter, abdominal visceral fat is calculated (S77). The central processing unit 123 calculates the abdominal visceral fat amount of the subject by using the body impedance corresponding to the abdominal visceral fat amount calculated in step S76 and the body information of the subject. At this time, the central processing unit 123 may calculate the amount of abdominal visceral fat using a known multiple regression formula. For example, the central processing unit 123 may calculate the amount of abdominal visceral fat using the regression equation disclosed in Korean Patent Application No. 2006-0017009.

Thereafter, the abdominal visceral fat amount calculated by the central processing unit 123 is appropriately analyzed and processed to be easily understood by the measurer or the subject to be measured and output to the display unit 128 or the print unit 129.

8 is a view illustrating the resistance characteristics of the piezo-resistive fiber. As shown in FIG. 8, when the piezo-resistive fiber is in a stable state, that is, an initial state (1L, L is length) that is not stretched by external force, assuming that the voltage is '1V', the length of the piezo-resistive fiber is increased by external force. In the case of 1.3 times (1.3L) or 2 times (2L) increase, the voltage value is 0.77 times or 0.5 times. That is, as the length of the piezo-resistive fiber increases, the resistance value of the fiber decreases in inverse proportion thereto, and thus, the measured voltage value decreases correspondingly. As such, it is possible to accurately measure the length of the piezo-resistive fiber by measuring the voltage value that changes according to the change in the length of the piezo-resistive fiber, thereby measuring the circumference of the body 100.

Another method for measuring the circumference of the body 100 using the belt 110 is a method of measuring by attaching a strain gage (not shown) to the surface of the belt 110. A strain gauge is attached to the surface of the belt 110 to measure the deformed state and amount of the belt 110. Strain gauges can be divided into two types: electrical strain gauges measured electrically and mechanical strain gauges measured mechanically. The electric strain gauge measures the strain from the electrical resistance of the attached strain gauge when the structure is deformed, and the mechanical strain gauge measures the strain of the structure by mechanically measuring the small distance change between two points. will be. In the present invention, an electric strain gauge is used.

As described above, the plurality of first and second electrodes 112 and 114 are installed in the belt 110. The first and second electrodes 112 and 114 may be installed to be detachable. The first and second electrodes 112 and 114 are spaced at regular intervals and installed in the belt 110. Preferably, the belt 110 is elastically spaced apart at regular intervals. In an embodiment of the present invention, the belt 110 is worn on the body 100 such that the alignment line 116 of the belt 110 is matched to the navel of the body 100, wherein the current is supplied to the body 100. One pair of first electrodes 112 is symmetrically positioned at both ends of the side. Thus, the circumference of the body 100, for example, the waist circumference, is divided into 1/2 by the pair of first electrodes. As such, when the belt 110 is worn on the body 100, the elasticity in the belt 110 acts evenly around the body 100 so that 1 / n (n is n) of the abdomen front surface 100a as shown in FIG. Natural electrode) ratio. Here, the ratio of the interval between the electrodes is determined according to the ratio of the waist circumference of the subject, thereby forming an electrode by a constant ratio.

9 and 10 are measurement test results showing the impedance characteristics according to the intervals in which the first and second electrodes 112 and 114 are arranged, and FIG. 9 is a test result showing the electrode configuration by a predetermined ratio. 10 is an experimental result diagram according to the electrode configuration at regular intervals.

As shown in FIG. 9, the distance between the first and second electrodes 112 and 114 is increased in a predetermined ratio at the periphery of the body 100, for example, at the outer circumferential surface of the waist circumference. For example, the first and second electrodes 112 and 114 are positioned by increasing the interval between 'B' and 'A' rather than the interval between 'C' and 'B'. In this case, it can be seen that the body impedance Z shows a large difference between body types (obesity body type 1, obese body type 2, normal body type 1, normal body type 2, dry body type 1, and dry body type 2).

On the contrary, as shown in FIG. 10, the spacing 5 cm between the first and second electrodes 112 and 114 is positioned at the same spacing. For example, the first and second electrodes 112 and 114 are positioned to have the same interval between 'A', 'B', and 'C'. In this case, the body impedance (Z) is increased between body types (obesity type 1, obesity type 2, normal body type 1, normal body type 2, dry body type 1, and dry body type 2) compared with the case of increasing the position by a certain ratio. It can be seen that there is no big difference.

Accordingly, in the present invention, in installing the first and second electrodes 112 and 114 in the belt 110, the pair of first electrodes 112 are symmetrically symmetrically to correspond to the sides of the body 100. In this case, the distance between the first and second electrodes 112 and 114 increases and is installed at a predetermined ratio toward the alignment line 116 formed at the center of the belt 110. Through this, it is possible to secure the reliability for each body type by increasing the difference in the body impedance (Z) for each body type.

An alignment line 116 may be formed at the central portion of the belt 110. The alignment line 116 is used as a reference standard for aligning the electrodes installed in the belt 110 when the belt 110 is worn on the body 100. The shape of the alignment line 116 is not limited, and may be implemented in various forms. Since the plurality of first and second electrodes 112 and 114 are installed in the belt 110 at increased intervals, the belt 110 may be positioned at the correct portion of the body 100 when the belt 110 is worn. A standard part is needed.

Abdominal visceral fat measurement method according to an embodiment of the present invention takes the following method. First, a current is applied to both sides of the body 100, and a voltage is measured at a place close to there to calculate the total amount of abdominal fat. Then, the current flows to the left and right sides of the navel border, and the subcutaneous fat is calculated by measuring the voltage near the place. Then, the amount of abdominal visceral fat of the subject is calculated using the subtracted subcutaneous fat from the total fat and the body information (age, weight, sex, waist circumference, etc.) of the subject.

As such, the position at which the first and second electrodes 112 and 114 are installed is very important to accurately calculate the abdominal visceral fat amount of the subject. That is, in order to measure the total amount of abdominal fat, the pair of first electrodes 112 should be positioned at both sides, and the pair of second electrodes 114 should be positioned close to the electrodes. In addition, in order to measure subcutaneous fat, another pair of first electrodes 112 should be positioned close to the second electrode 114 for measuring the abdominal fat amount symmetrically with each other, and in close proximity to these electrodes. The first electrode 112 should be located. As a result, the first electrode 112, the second electrode 114, the first electrode 112, and the second electrode 112 are positioned in the direction of the alignment line 116 of the belt 110 with respect to the side. They are positioned symmetrically about the alignment line 116.

As shown in FIG. 3, a holder 118 may be installed at an end of the belt 110. Holder 118 is provided to fasten the ends of the belt 110 to each other to stably wear the belt 110 to the body 100, the form, structure and fastening method is not limited.

The control unit 120 may be installed in the belt 110. In addition, as in the other examples shown in FIGS. 5 and 6, the controller 220 may be installed in addition to the belt 210 instead of being installed in the belt 210. 5 and 6 when the control unit 220 is installed in addition to the belt 210 in the form of an independent unit device, a separate device for transmitting and receiving data between the control unit 220 and the belt 210 may be added, At this time, data transmission and reception includes wired and wireless communication. For example, in the wired communication, the belt 210 and the controller 220 are each provided with cable ports in the belt 210 and the controller 220 in order to be connected through the cable 230. In addition, in the case of wireless communication, a wireless transceiver is installed in the belt 210 and the controller 220.

The present invention is not limited to the above described and illustrated in the drawings, and of course, more modifications and variations are possible to those skilled in the art within the scope of the following claims.

 1 is a front view showing a state in which the abdominal visceral fat measuring device according to an embodiment of the present invention is worn on the body.

FIG. 2 is a cross-sectional view of the apparatus for measuring abdominal visceral fat shown in FIG. 1.

FIG. 3 is a plan view of the apparatus for measuring abdominal visceral fat shown in FIG. 1.

4 is a block diagram illustrating the configuration of the controller 120 shown in FIG. 1.

Figure 5 is a cross-sectional view showing an abdominal visceral fat measuring apparatus according to another embodiment of the present invention.

FIG. 6 is a plan view of the apparatus for measuring abdominal visceral fat shown in FIG. 5.

7 is a flowchart illustrating a method of measuring abdominal visceral fat shown in FIG. 1.

8 is a diagram showing the resistance characteristics of the piezo-resistive fiber.

9 is a test result diagram showing the electrode configuration by a certain ratio.

10 is a test result diagram according to the electrode configuration at a predetermined interval.

<Explanation of symbols for the main parts of the drawings>

100: body 110, 210: belt

112, 212: first electrode 114, 212: second electrode

116, 216: alignment line 118, 218: holder

120, 220: control unit 121: voltage detection preprocessor

122: current supply control unit 123: central processing unit

124: analog-to-digital converter 125, 225: input unit

126: output unit 127: storage unit

128, 228: display unit 129: printer unit

230: cable

Claims (19)

A belt made of elastic fibers; A plurality of first electrodes installed in the belt to provide an input current into the body of the subject; A plurality of second electrodes disposed in the belt and disposed alternately with the first electrodes, respectively, and outputting a voltage provided from the body in response to the current; And A controller configured to provide a current to the first electrodes, detect a voltage output from the second electrodes, and calculate an abdominal visceral fat amount of the body using the current and the voltage. In the abdominal visceral fat measuring device comprising: In order to measure the circumference of the body, the belt is made of a piezo resistive fabric whose resistance changes according to a change in elasticity, or a stomach having a strain gage attached to a surface thereof. Visceral Fat Measuring Device. In the abdominal visceral fat measuring device comprising at least a belt equipped with a plurality of first electrodes for supplying a fine current and a second electrode for detecting a voltage, The first electrodes are installed in pairs in the belt, and a plurality of pairs are mounted on the belt, and are arranged to be symmetrical with respect to the alignment line located at the middle of the body. The second electrode is installed in pairs in the belt, a plurality of pairs are mounted on the belt, arranged to be symmetrical with respect to the alignment line, The pair of second electrodes are symmetrically disposed on the basis of the alignment line, and the pair of first electrodes are symmetrically arranged on the basis of the alignment line to the outside of the pair of second electrodes. The other pair of second electrodes are arranged symmetrically with respect to the alignment line to the outside of the electrode, and the other pair of first electrodes are arranged symmetrically with respect to the alignment line to the outside of the other pair of second electrodes. In the abdominal visceral fat measuring device, The belt is made of a piezo resistive fabric whose resistance changes according to a change in elasticity to measure the circumference of the body, or the abdomen characterized in that a strain gage is attached to the surface Visceral Fat Measuring Device. delete The method of claim 2,  Generates and outputs a first electrode control signal for providing current to the first electrodes, receives a voltage detected at the second electrodes, and outputs a current value provided at the electrodes and a voltage value received at the second electrodes. And a control unit having at least a central processing unit for calculating the body impedance using the central processing unit to calculate abdominal visceral fat amount. 5. The method of claim 4, The control unit A display unit positioned above the belt and displaying a result of the operation processing in the central processing unit; An input unit configured to input body information of a subject and set a measurement mode; Abdominal visceral fat measuring device comprising a. The method of claim 5, The control unit further comprises an output port for transmitting data to an external computer or a printer by wire or wireless. delete delete The method of claim 1, The first electrode A is positioned on both sides of the alignment line provided at the center of the belt, and the first electrode A is spaced apart from the electrode A. The first electrode B is positioned, and the electrode B is spaced apart from the electrode B. When the second second electrode C is positioned, the interval between the electrode B and the electrode A arranged in series is greater than the distance between the electrode C and the electrode B arranged in succession. Fat measuring device. The method of claim 1, And the first and second electrodes are alternately disposed in the order of the second electrode and the first electrode on both the left and right sides of an alignment line provided at the center of the belt. The method of claim 1, The control unit is an abdominal visceral fat measuring device is installed inside the belt or outside the belt. The method of claim 1, The control unit, A current supply controller configured to generate the current and supply the current to the first electrode; A voltage detection preprocessing unit for detecting noise and amplifying the voltage output from the second electrode; And A central processor configured to calculate a impedance using a current provided from the current supply controller to the first electrode and a voltage detected from the voltage detection preprocessor; Abdominal visceral fat measuring device comprising a. 13. The method of claim 12, The control unit, An input unit for providing body information of the subject to the central processing unit; An output unit for outputting an output signal output from the central processing unit; A storage unit for storing the data processed by the central processing unit; And An analog-digital converter for converting the analog signal detected by the voltage detector into a digital signal Abdominal visceral fat measuring device further comprising a. The method of claim 13, The output unit abdominal visceral fat measuring apparatus characterized in that it comprises a display unit or a print unit. 13. The method of claim 12, The central processing unit calculates the impedance corresponding to the total fat amount using current and voltage detected through the first and second electrodes positioned near both sides of the body, and is located close to the navel of the body. The body impedance corresponding to the subcutaneous fat amount is calculated by using the current and voltage detected through the first and second electrodes, the value obtained by subtracting the body impedance corresponding to the total fat amount and the body impedance corresponding to the subcutaneous fat amount and the A device for measuring abdominal visceral fat, comprising calculating abdominal visceral fat amount using physical information of a subject. The method of claim 15, The central processor calculates abdominal visceral fat using a multiple regression formula. The method of claim 1, The belt is provided with a holder at the end of the abdominal visceral fat measuring device is fastened to each other. The method of claim 1, And the first and second electrodes are detachably installed from the belt. Measuring waistline by measuring the waistline of the subject using the strain gauge attached to the belt surface or using the characteristic that the resistance of the belt changes according to the elasticity while the alignment line of the belt is matched to the navel of the subject. , A body information input step of inputting body information through an input unit after the waist circumference measurement step; After the physical information input step, supply a constant current through the first electrode located on both sides of the body, and detect the voltage output through the second electrode located close to it to measure the body impedance corresponding to the total amount of abdominal fat Measuring the total fat mass corresponding impedance; After measuring the total fat mass response impedance, the constant current is supplied again through the first electrodes positioned at the left and right sides of the body's navel border, and the voltage outputted through the second electrode located close thereto is detected and detected. A subcutaneous fat corresponding body impedance measurement step of measuring a body impedance corresponding to the subcutaneous fat using a calculated voltage; An abdominal visceral fat corresponding chamber impedance calculation step of subtracting a subcutaneous fat corresponding to the subcutaneous fat by subtracting the subcutaneous fat corresponding to the subcutaneous fat from the body impedance corresponding to the total fat mass after the subcutaneous fat corresponding body impedance measurement step; An abdominal visceral fat calculation step of calculating abdominal visceral fat amount of the measurer by using a body impedance corresponding to the abdominal visceral fat amount and body information of a measurer (abdominal visceral fat measuring device user) after the abdominal visceral fat response corresponding body impedance calculation step; Abdominal visceral fat measurement method characterized in that it comprises a.

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