KR101331858B1 - Smart pants for measuring movement signal of muscle - Google Patents

Abstract

The present invention relates to smart pants, more specifically, to smart pants for measuring movement signal of muscle, which confirms the degree of exercise by the movement of the thigh generated during walking or running while wearing the smart pants with an elastic clamping band and a piezoelectric sensor. [Reference numerals] (610) Calculation unit;(620) Storage unit;(630) Wireless transmission unit;(640) Power supply unit

Description

Smart pants for measuring movement signal of muscle

The present invention relates to a smart pants, and more particularly, by providing an elastic fastening band and a piezoelectric sensor in a pants such as a sweat suit, the degree of movement by the movement of the thigh muscles caused by such exercise when walking or running with the smart pants It relates to a smart pants that can measure the exercise signal of the muscles.

As the public's interest in health care increases due to the improvement of the economic level and the aging of the population, the interest in health management that manages the health status through physical activities and regular sports activities is increasing. In order to perform such health management, it is possible to constantly measure bio signals such as electrocardiogram (ECG), respiration, heart pulse wave, and electromyogram (EMG) related to the movement of muscles of the body. There is a need for the development of smart clothing equipped with sensors.

In the past, the sensor electrode used to measure electromyography is an Ag / AgCl gel electrode that must maintain close adhesion to the skin. Therefore, when used for a long time, the skin may cause an allergic reaction or dermatitis. There is a problem that is very difficult to apply to smart clothing that is required to wear.

In addition, when the conductive Ag / AgCl gel electrode is attached and used for a long time, the gel electrode dries and the electrical conductivity decreases, resulting in a drop in the quality of EMG signals, and after it is attached to the skin once, Since the adhesive strength of the gel electrode is difficult to use repeatedly, there is a problem that can be used only for one-time use, and it was difficult to use the conventional Ag / AgCl gel electrode as a smart garment electrode that requires repeated use. .

Accordingly, a sensor of a type that enables a person to exercise or live with a garment to measure an EMG signal during exercise or life, or a smart garment to which such a sensor is applied, is not commercially available.

Accordingly, a pedometer, a three-axis accelerator sensor, a CO ₂ gas measurement system generated during metabolism, and the like have been conventionally used to measure momentum during walking or running. However, the cost of CO ₂ gas measurement system is very expensive, heavy, hard, and inconvenient to wear.In the case of pedometer or 3-axis accelerator sensor, accurate information according to the weight, age, height, and gender of the exerciser is input. If you do not have the problem that you can not directly calculate the calories burned during exercise, the pedometer consumes energy when walking flat, downhill, or uphill even if you know the exact information according to the weight, age, height, and gender of the athlete There was a problem that the difference could not be identified.

Further, in the related art, in the Republic of Korea Patent Registration No. 10-1087167, the step of detecting the user's body signal according to the amount of exercise from the exercise amount measuring sensor to classify and measure the user's body signal for each frequency band, the frequency measured according to the frequency band Suggested 'Method of measuring exercise, device and system using the EMG', including an analysis step of analyzing the amount of exercise and the amount of calories burned by the processor, and a display step of displaying the analyzed result value as a display. It has been.

However, such a conventional method, apparatus, and system using the EMG, which amplifies a user's body signal (sEMG) by using an exercise sensor measuring an input unit, a filter unit, a signal converter, and a data processor It is proposed to measure the amount of exercise by processing the data afterwards, and to solve the above-mentioned problems that may occur when the gel electrode used for measuring the EMG signal, which is a user's body signal, is applied to the garment. Also not shown, the difficult problem of repeated use due to the use of the gel electrode, and problems that are difficult to apply to smart clothing will still be included.

In addition, the present inventors in the Republic of Korea Patent No. 10-1023446 can detect the electrical signal generated while stretching together as the elastic band is tightening or shrinking the specific part of the body by stimulation caused by breathing or pulse wave. As a use example of the 'sensor including the material generating the electrical signal by stretching', a piezoelectric polymer film is inserted into the elastic band and the elastic band is worn on the body to measure respiration or pulse wave. We have proposed a technology that makes it possible.

However, the conventionally proposed 'sensor comprising a substance that generates an electrical signal by stretching' is intended to detect changes in structures or plants in a stationary state, or movement caused by breathing when the patient is stationary. Therefore, when the wearer walks or exercise, such as daily life, there is a problem that it is difficult to measure the correct breathing behavior by motion artifacts caused by the wearer's movement, and the durability is rapidly increased when repeated use. There is a problem that is lowered, there is a problem that is difficult to use as a measuring means in daily life such as walking or exercising.

Therefore, there is still a demand for smart clothing that can be repeatedly worn and taken off, and that can measure the motion signal of the muscles stably and accurately while maintaining daily life.

The problem to be solved by the present invention, by providing an elastic tightening band and a piezoelectric sensor in the pants, such as sweatshirts, by using the smart pants walking or running, the degree of movement is stable and accurate by the movement of the thigh muscles caused by such exercise It is to provide a smart pants that can measure the exercise signal of the muscles that can be measured.

Smart pants that can measure the exercise signal of the muscle to solve the above problems, in the pants (pants) worn for exercise or daily life, made of an elastic material surrounding the thigh area of the pants to tighten while tightening the thighs of the wearer Elastic tightening band; An elastic cover band padded in an open state to one side of the elastic tightening band to form an insertion space; A piezoelectric sensor inserted into the insertion space and generating an electrical signal while being stretched or returned to its original state with an elastic tightening band which expands or contracts due to deformation of the thigh muscle according to the movement of the pants wearer; A shielded signal transmission line configured to transmit an electrical signal generated by the piezoelectric sensor; And a controller configured to receive an electrical signal transmitted through the shielding signal transmission line and calculate an exercise amount of the muscle.

At this time, the piezoelectric sensor,

A piezoelectric sensing unit comprising a piezoelectric polyvinylidene fluoride (PVDF) film and electrodes formed on both sides of the film; And an elastic layer surrounding the piezoelectric sensing unit; The elastic layer is characterized by consisting of a silicone rubber composition containing 1 to 3% by weight of conductive carbon black.

In addition, the piezoelectric sensor,

A piezoelectric sensing unit comprising a piezoelectric polyvinylidene fluoride (PVDF) film and electrodes formed on both sides of the film; An insulation layer surrounding the piezoelectric sensing unit; A conductive layer surrounding the insulating layer; And an elastic layer surrounding the conductive layer, wherein the elastic layer is made of a silicone rubber composition containing 1 to 3% by weight of conductive carbon black.

In this case, the insulating layer is made of a silicone rubber composition, the conductive layer is characterized in that the conductive carbon black containing 30% by weight or more.

In addition, the shielding signal transmission line is preferably configured to be placed inside the screen consisting of a conductor for transmitting an electrical signal, and to surround the insulation layer / shielding line / insulation layer in order.

In addition,

A calculating unit which receives the electrical signal transmitted through the shielding signal transmission line, calculates the amount of exercise of the muscle, and quantifies the degree of exercise such as calories consumed; A storage unit configured to store an amount of exercise of the muscle calculated by the calculating unit and an electrical signal transmitted through the shielding signal transmission line; And a wireless transmitter comprising communication means for transmitting the amount of exercise of the muscle calculated by the calculator to a wearer's smartphone or a server system spaced a certain distance from the wearer. The calculating unit may be configured to calculate the kinetic energy consumed for a predetermined time by rectifying and integrating the piezoelectric signal, which is an electrical signal generated from the piezoelectric sensor, according to the deformation of the thigh muscle.

In addition, the elastic tightening band is preferably formed to have a 10 to 20% elongation around the basic thigh.

The present invention has the effect of stably and accurately measuring the degree of movement by the movement of the thigh muscles caused by such movement when wearing smart pants and walking or running.

1 is a perspective view of a smart pants capable of measuring the exercise signal of the muscle according to the present invention.
Figure 2 is a perspective view of a piezoelectric sensing unit constituting a piezoelectric sensor provided in the smart pants capable of measuring the exercise signal of the muscle according to the present invention.
Figure 3 is a perspective view and an exploded view of the piezoelectric sensing unit of the piezoelectric sensor provided in the smart pants capable of measuring the exercise signal of the muscle according to the present invention.
Figure 4 is a cross-sectional view showing a first embodiment of a piezoelectric sensor provided in a smart pants capable of measuring the exercise signal of the muscle according to the present invention.
Figure 5 is a cross-sectional view showing a second embodiment of the piezoelectric sensor provided in the smart pants capable of measuring the exercise signal of the muscle according to the present invention.
Figure 6 shows the measurement of the movement of the thigh muscle using a piezoelectric sensor (silicon rubber coating containing conductive carbon black) according to the present invention, showing the result of outputting the signal data collected by Ecnaridge 4.1 to the monitor graph.
Figure 7 is a graph showing the measurement of the EMG of the thigh when running at 3km / h using a Bionomedics EMG module (Bionomadix EMG module) and a medical Ag / AgCl gel electrode.
Figure 8 is a graph showing the measurement of the movement of the thigh muscles when running at 3km / h using a piezoelectric sensor (silicon rubber coating containing conductive carbon black) provided in the smart pants according to the present invention.
Figure 9 is a graph showing the measurement of the electromyography of the thigh when running at 5 km / h using a Bionomedics EMG module (Bionomadix EMG module) and a medical Ag / AgCl gel electrode.
Figure 10 is a graph showing the measurement of the movement of the thigh muscles when driving at 5km / h using a piezoelectric sensor (silicon rubber coating containing conductive carbon black) provided in the smart pants according to the present invention.
Figure 11 is a graph showing the measurement of the EMG of the thigh when running at 7 km / h using a Bionomedics EMG module (Bionomadix EMG module) and medical Ag / AgCl gel electrode.
Figure 12 is a graph showing the measurement of the movement of the thigh muscles when running at 7km / h using a piezoelectric sensor (silicon rubber coating containing conductive carbon black) provided in the smart pants according to the present invention.
Figure 13 (A), (B), (C) is the elongation of the elastic tightening band for wearing a piezoelectric sensor in the smart pants according to the present invention at 5 km / h at 10%, 15%, 20% respectively A graph that measures the thigh muscle movement while driving.
FIG. 14 shows the change (A) of the piezoelectric signal from the piezoelectric sensor attached to the thigh during walking at a walking speed of 3 km / h, the piezoelectric signal (B) after rectifying it, and the rectified piezoelectric signal for 1 minute. To plot the integral value against time (C).
15 is an exemplary photograph showing that the experiment by changing the wearing position of the piezoelectric sensor provided in the smart pants according to the present invention.
FIG. 16 is a graph showing a time-dependent change of an integrated value of a rectified piezoelectric signal of a piezoelectric sensor located inside the thigh according to a walking speed and a treadmill slope.
17 is a graph showing a time-dependent change of the integral value of the rectified piezoelectric signal according to the wearing position of the piezoelectric sensor worn around the thigh according to the walking speed.
18 is a graph showing a background signal measured using a HPF cutoff frequency of 0.1 Hz and a LPF cutoff frequency of 10 Hz from a piezoelectric sensor to which the first embodiment of the piezoelectric sensor according to the present invention is applied;
FIG. 19 is a graph illustrating a background signal measured using a HPF cutoff frequency of 0.1 Hz and a LPF cutoff frequency of 10 Hz from a piezoelectric sensor to which a second embodiment of the piezoelectric sensor according to the present invention is applied; FIG.
20 is a graph illustrating a background signal measured using an HPF cutoff frequency of 0.1 Hz and an LPF cutoff frequency of 100 Hz from a piezoelectric sensor to which the first embodiment of the piezoelectric sensor according to the present invention is applied;
21 is a graph showing a background signal measured by HPF cutoff frequency 0.1Hz and LPF cutoff frequency 100Hz from the piezoelectric sensor to which the second embodiment of the piezoelectric sensor according to the present invention is applied.

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

1 is a perspective view of a smart pants capable of measuring the exercise signal of the muscle according to the present invention, Figure 2 is a perspective view of a piezoelectric sensing unit forming a piezoelectric sensor provided in the smart pants capable of measuring the exercise signal of the muscle, 3 is a perspective view and an exploded view of a piezoelectric sensing unit constituting a piezoelectric sensor provided in the smart pants capable of measuring the exercise signal of the muscle according to the present invention, Figure 4 is provided in the smart pants capable of measuring the exercise signal of the muscle according to the present invention Figure 5 is a cross-sectional view showing a first embodiment of the piezoelectric sensor, Figure 5 is a cross-sectional view showing a second embodiment of the piezoelectric sensor provided in the smart pants capable of measuring the exercise signal of the muscle according to the present invention.

Referring to Figure 1, the smart pants can measure the exercise signal of the muscle according to the present invention, a wearer (pants) 100 for wearing for exercise or daily life, and made of an elastic material surrounding the thigh portion of the pants While tightening the thigh of the elastic tightening band 200, the elastic cover band 300 is padded in an open state in one side to the elastic tightening band 300 to form an insertion space, and inserted into the insertion space of the pants wearer movement Piezoelectric sensor 400 for generating an electrical signal while extending or retracted with the elastic tightening band that expands or contracts due to the deformation of the thigh muscle according to the shielding signal transmission line for transmitting the electrical signal generated by the piezoelectric sensor ( 500) and a control unit 600 for receiving an electrical signal transmitted through the shielding signal transmission line and calculating the amount of exercise of the muscle. It is.

The pants 100 may be configured as general bottoms worn for life, such as walking or going out, but the elastic tightening band 200 should be pressed to exercise a specific area of the thigh bar. It is preferable that it consists of a sweat suit.

The elastic tightening band 200 is composed of an elastic band that compresses while wrapping the thigh so as to recognize the movement of the thigh muscle that is necessarily deformed each time you take a step when walking or exercising. At this time, the elastic tightening band 200 may be provided only on one side of the thigh, as shown in Figure 1, of course, may be provided on both thigh.

In addition, the elastic tightening band 200 should be able to tighten the thigh so that the band can expand or contract even in the small movement of the thigh muscle, it is preferably configured to have a size smaller than the wearer's thigh circumference.

The elastic cover band 300 is formed of an elastic material that can expand or contract with the elastic tightening band 200 when the wearer moves, such as walking, and forms a passage through which the piezoelectric sensor 400 is inserted or detached. One side is configured to be padded to the elastic tightening band 200 in an open state.

In this case, the elastic cover band 300 may be padded on the inner side as well as the outer side of the elastic tightening band, in order to facilitate the storage and detachment of the piezoelectric sensor, the terminal forming the shielding signal transmission line is in contact with the body when worn. It is preferable to be padded on the outer side of the elastic tightening band 200 to prevent noise from flowing.

In addition, the shape of the elastic cover band 300 is not particularly limited, but the rectangular shape to form an insertion space for stably housing the entire piezoelectric sensor formed long in the direction in which the elastic tightening band expands or contracts when the wearer moves. When the elastic cover band is formed in a rectangular shape, it is possible to fix the three sides to the elastic tightening band 200 by stitching and to open only one side to form a receiving passage of the piezoelectric sensor. .

As described above, the piezoelectric sensor 400 inserted into the insertion space including the upper elastic cover band 300 and the lower elastic tightening band 200 is in contact with the upper and lower surfaces of the elastic cover band and the elastic tightening band. Since the frictional force is increased, it is possible to recognize the thigh movement of the wearer while stretching together with the elastic cover band and elastic tightening band.

The piezoelectric sensor 400 is a piezoelectric polyvinylidene fluoride (PVDF) film 11 and the electrode 12 formed on both sides of the film, as shown in the first embodiment shown in Figures 2, 3 and 4 It comprises a piezoelectric sensing unit 10 and an elastic layer 40 surrounding the piezoelectric sensing unit, the elastic layer 40 is a silicone rubber composition containing 1 to 3% by weight of conductive carbon black Is formed.

At this time, the thickness of the elastic layer 40 is 0.1 to 1mm, the total thickness of the piezoelectric sensor 400 is preferably 0.2 to 2mm.

The first embodiment of the piezoelectric sensor 400 includes a piezoelectric polyvinylidene fluoride (PVDF) film 11 and a piezoelectric sensing unit 10 including electrodes 12 formed on both surfaces of the film. It is prepared by coating the conductive carbon black to be wrapped with a silicone rubber composition containing 1 to 3% by weight.

In addition, the piezoelectric sensor 400 includes a piezoelectric polyvinylidene fluoride (PVDF) film 11 and electrodes 12 formed on both surfaces of the film, as in the second embodiment of FIG. 5. It comprises a piezoelectric sensing unit 10, an insulating layer 20 surrounding the piezoelectric sensing unit 10, a conductive layer 30 surrounding the insulating layer, and an elastic layer 40 surrounding the conductive layer. In this case, the elastic layer 40 is formed of a silicone rubber composition containing 1 to 3% by weight of conductive carbon black.

Accordingly, as shown in FIG. 5, when the cross section of the piezoelectric sensor 400 is viewed, an electrode 12 is positioned at an upper portion of the piezoelectric PVDF film 11 and an insulating layer 20 is formed on the electrode. In this position, the conductive layer 30 is positioned on the insulating layer, and the elastic layer 40 is sequentially stacked on the conductive layer. In addition, an electrode, an insulating layer, a conductive layer, and an elastic layer are sequentially stacked in the same order below the piezoelectric PVDF film 11.

In this case, the insulating layer 20 is preferably made of a silicone rubber composition, and the conductive layer 30 preferably contains 30 wt% or more of conductive carbon black. In this case, the thickness of the insulating layer 20 is 0.01 to 0.2 mm, the thickness of the conductive layer 30 is 0.01 to 0.2 mm, the thickness of the elastic layer 40 is 0.1 to 1 mm, and the piezoelectric sensor ( It is preferable that the total thickness of 400) is 0.2 to 2 mm.

The second embodiment of the piezoelectric sensor 400 includes a piezoelectric polyvinylidene fluoride (PVDF) film and a silicon rubber composition to surround the piezoelectric sensing unit 10 including electrodes formed on both sides of the film. Coating to form an insulating layer 20 and coating the carbon black paste containing 30 wt% or more of conductive carbon black to surround the piezoelectric sensing unit on which the insulating layer is formed, thereby forming the conductive layer 30. And forming an elastic layer 40 by coating with a silicone rubber composition containing 1 to 3% by weight of conductive carbon black to surround the piezoelectric sensing unit on which the insulating layer and the conductive layer are formed.

At this time, the piezoelectric polyvinylidene fluoride (PVDF) film is a linear polymer having a relatively simple monomer structure (-CH ₂ -CF _2- ) n as a repeating unit, and is a polymer of high molecular weight due to the strong CF dipoles present in the molecular chain. It has the highest dielectric constant, is made of organic polymer, resistant to corrosion, good processability, has insulation strength that can withstand the breakdown of ceramic piezoelectric material, and is light and relatively low in acoustic impedance compared to ceramic piezoelectric materials. It consists of a polarized PVDF (piezoelectric polyvinylidene fluoride) based film which has advantageous advantages in application to materials such as liquids or biological tissues.

The piezoelectric polyvinylidene fluoride (PVDF) film has a property of generating a charge distribution or an electric field as it contracts or expands when deformation or stress is applied due to an external stimulus. By recognizing the occurrence of the signal, it is possible to determine whether there is a change in deformation of the piezoelectric PVDF film, such as contraction expansion of the rib cage by breathing.

In addition, silver is mainly used as an electrode of the piezoelectric sensor 400, and a method of separately coating both surfaces of the piezoelectric PVDF film with silver ink may be used.

In order to prevent damage to the piezoelectric sensing unit constituting the piezoelectric sensor, that is, damage to the electrode or the piezoelectric PVDF film, it is necessary to coat the piezoelectric sensing unit 10. In order to effectively transmit the contraction and expansion motion of the body to the piezoelectric sensing unit, it is necessary to coat with a material having excellent adhesion and elasticity with the body. It is possible to think of a rubber material as a coating that can be applied to this. When attempting a coating with a general rubber material, a problem may occur that the solvent used for coating damages the piezoelectric PVDF film or the electrode. However, when attempting to coat with silicone rubber, such a problem does not occur because the coating is easy without using a special solvent. Therefore, in the present invention, a silicone rubber was used for the coating of the piezoelectric sensing unit, that is, the elastic layer.

If only the silicone rubber is coated, the piezoelectric sensing unit can prevent damage to the piezoelectric sensing unit as described above and achieve close contact with the body to some degree. For example, it is difficult to solve the problem of inhibiting the detection of a biosignal caused by an electrical noise signal generated by a noise signal caused by movement during movement or equipment such as a drill. In addition, the sensor coated only with the silicone rubber is low in durability and difficult to use for a long time, so it is necessary to further increase toughness.

To this end, in the present invention, a conductive filler material is applied to the silicone rubber in order to simultaneously solve the above two main problems.

In this case, as the conductive filler, various conductive metal materials, carbon nanotubes (CNT), graphene, and the like may be used, which are difficult to disperse in silicone rubber, and require a complicated additional process or costly dispensing for even dispersion. There is a problem.

On the other hand, the conductive carbon black, unlike the conductive filler as described above has the advantage that it is easy to disperse in the silicone rubber, easy to operate and low cost, in the present invention, the conductive carbon black was selected as the conductive filler, such conductive As a result of manufacturing the piezoelectric sensor using carbon black, it was confirmed that the piezoelectric sensor was very effective in solving the noise signal problem and increasing the toughness. Representative conductive carbon black is Ketjen black. The catch black is suitable for the present invention because it is excellent in conductivity and particularly easy to be contained in silicone rubber. The most suitable Ketjen black is Ketjen black ECP600JD, which is an ultra fine powder.

In addition, in order to solve the noise signal problem and increase the toughness of the piezoelectric sensor, it is preferable that the conductive layer 40 contain 1 to 3% by weight of conductive carbon black. When the carbon black content is low, it is difficult to solve the noise signal problem and increase the toughness. When the carbon black content is high, the elastic layer is excessively cured, so that the contraction and expansion movements of the body are not transmitted to the piezoelectric PVDF film or the piezoelectric PVDF film itself shrinks and This is because expansion can be inhibited.

In addition, in order to manufacture the piezoelectric sensor 400 of the present invention, a method of coating the piezoelectric sensing unit with a silicone rubber composition containing conductive carbon black may be used, wherein the composition for coating is conductive carbon black on a liquid silicone rubber. It can be prepared by the method of adding and mixing, and in order to facilitate the coating can be prepared by further adding an adhesive, a curing agent and the like. In the field of the present invention, a two-component silicone rubber product of a type used by mixing a silicone elastomer base and a curing agent generally used may be used, and in this case, the silicone elastomer base and the carbon black are first used to increase the dispersion degree of the carbon black. It is preferred to prepare in the order of mixing and then mixing the curing agent. After mixing these, it is preferable to remove bubbles of the coating composition by using a device such as a vacuum desiccator. In addition, in order to more easily disperse the conductive carbon black, a method of preparing the conductive carbon black in the form of a paste and then mixing it with a silicone rubber may be used. The conductive carbon black paste can be prepared by mixing conductive carbon black, a dispersant, and a binder resin.

The piezoelectric sensor is formed by spreading the coating composition thinly on a support such as a glass plate to form a coating layer and then partially hardening it by heat treatment, then raising the piezoelectric sensing unit, and then again spreading the coating composition to form a coating layer, followed by heat treatment to completely cure the piezoelectric sensor. It can manufacture. At this time, the heat treatment temperature is suitably 60 to 80 ° C, preferably 10 to 40 minutes. An oven can be used for the heat treatment.

When configuring the elastic layer 40 in the piezoelectric sensor 400 of the present invention, increasing the content of the conductive carbon black may be advantageous to solve the noise signal problem, but the piezoelectric body requires moderate elasticity because the elasticity of the elastic layer is increased. Not suitable for sensor Therefore, it is preferable to provide a separate conductive layer 30 to solve the noise signal problem more efficiently.

Accordingly, as in the second embodiment of the piezoelectric sensor 400, it is preferable that the conductive layer 30 further includes a conductive layer 30 surrounding the piezoelectric sensing unit before the elastic layer 40. (30) is defined as a layer containing 30 wt% or more of a conductive material. Although it may be confused with the elastic layer in that the conductive material is contained, it may be classified by the content of the conductive material.

As the conductive material, a conductive metal material, carbon nanotube (CNT), graphene, or the like may be used. In the present invention, it is preferable to use conductive carbon black in view of cost reduction and process simplification.

The conductive layer 30 may be formed by coating with a solution containing a conductive material, and an adhesive for facilitating coating and a dispersant for facilitating dispersion of the conductive material may be added to the solution.

When conductive carbon black is used as the conductive material to form the conductive layer, it is preferable to prepare and use in the form of a paste for ease of coating. The conductive carbon black paste can be prepared by mixing conductive carbon black, a dispersant, and a binder resin.

In the case where conductive carbon black is used as the conductive material, a solvent generally used to facilitate coating and dispersion may be damaged by reacting with the electrode of the piezoelectric sensing unit or the polymer protective film formed to protect the electrode. Before the conductive layer 30, it is preferable to separately configure a layer for protecting the electrode, that is, the insulating layer 20 of the present invention. This layer is preferably made of an insulating material so that electrical signals through the electrodes are not transmitted to the conductive layer.

For reference, since the electrode of the piezoelectric sensing unit is formed very thin, it may be damaged during operation. Accordingly, when the piezoelectric sensing unit is separately manufactured and distributed or stored, in order to prevent damage to the electrode, a separate thin polymer protective layer is formed on the exposed portion of the electrode. The piezoelectric sensing unit in a state where the polymer protective layer is present may be used.

The insulating layer 20 may be made of various elastic materials, but in the case of silicone rubber, the materials used for coating do not damage the piezoelectric PVDF film, the silver electrode, and the polymer protective layer of the thin film. At this time, the insulating layer 20 is preferably formed as thin as possible.

As described above, the piezoelectric sensor 400 having the insulating layer and the conductive layer added thereto may be configured as shown in FIG. 5.

When the piezoelectric sensor of the present invention is applied to a smart garment or the like, if the thickness of the piezoelectric sensor is too thick, the piezoelectric sensor should be able to effectively sense the contraction movement of the body while being thin because the wearability of the piezoelectric sensor is not good. The final thickness of the piezoelectric sensor 400 manufactured to solve this problem is preferably 2mm or less.

The shielding signal transmission line 500 is connected to an electrode constituting the piezoelectric sensor and is composed of a conductive wire which transmits an electrical signal generated by the expansion or contraction of the thigh muscles generated when the wearer moves.

In this case, the shielded signal transmission line 500 may be composed of a simple conductor for transmitting an electrical signal, as well as a screen made of a conductor for transmitting the electrical signal is placed therein, and the insulation layer / shielding line / insulation around the shielding signal transmission line 500. It is preferably configured to wrap sequentially in layer order.

The control unit 600 receives an electrical signal transmitted through the shielding signal transmission line, calculates the amount of exercise of the muscles, and calculates and provides a degree of exercise such as calories consumed, and the muscles calculated by the operation unit. The storage unit 620 made of a memory for storing the amount of exercise and the electrical signal transmitted through the shielding signal transmission line, and the amount of exercise of the muscle calculated by the calculation unit is connected to the wearer's smartphone or a certain distance It is preferably configured to further include a wireless transmitter 630 made of communication means capable of transmitting to the server system.

As such, when the control unit 600 is configured to include the wireless transmitter 630, the wearer can evaluate the kinetic energy consumed while walking or driving while continuously monitoring the degree of muscle movement even while the wearer is exercising or performing daily activities. It will be able to continuously check the health of the wearer.

In this case, the calculating unit 610 is preferably configured to calculate the kinetic energy consumed for a predetermined time by rectifying and integrating the piezoelectric signal, which is an electrical signal generated from the piezoelectric sensor according to the deformation of the thigh muscle.

In the piezoelectric PVDF film constituting the piezoelectric sensor, a positive (+) piezoelectric signal, which is an electrical signal, is generated while expanding with an elastic tightening band that expands according to deformation of the thigh muscle, and contracts with an elastic tightening band that contracts to its original state. In addition, a negative piezoelectric signal, which is an electrical signal, is generated. At this time, the larger the degree of deformation of the thigh muscle, that is, the intensity of the external force applied to the elastic tightening band and the piezoelectric PVDF film, the larger the magnitude of the piezoelectric signal is generated. Therefore, it is possible to calculate the kinetic energy consumed by obtaining the size of the area represented by the piezoelectric signal curve over time.

The piezoelectric signal has a value of 0 when the piezoelectric signal curve itself is integrated since the positive and negative values are alternately displayed, thereby rectifying the piezoelectric signal measured through the piezoelectric PVDF film. By integrating the signal curves with both positive values and the like, the kinetic energy consumed for a certain time can be evaluated.

In addition, the control unit 600 receives the electrical signal from the piezoelectric sensor to calculate the momentum or kinetic energy, the power supply unit 640 such as a battery that can independently supply the power for storing or wireless transmission to the storage unit It is preferably configured to further include.

Next, an embodiment of manufacturing a piezoelectric sensor according to the present invention configured as described above will be described.

First, in order to manufacture the piezoelectric sensor according to the first embodiment, a piezoelectric sensing unit (thickness 52 μm, width 5 mm, length 30 mm) was manufactured by coating (elastic layer) with silicon rubber containing conductive carbon black.

At this time, Dow Corning's Silgard / B silicone elastomer kit and Ketjen black ECP600JD were used. The SealGuard / B Silicone Elastomer Kit is a two-component silicone elastomer kit consisting of a main body and a catalyst (curing agent), and Ketchen Black ECP600JD is a fine powder type conductive carbon black.

Silicone elastomer base (Sylgard) and Ketchen Black ECP600JD were mixed at 97: 3 weight ratio for 2 minutes. To this was added 10% by weight of silicone elastomer curing agent (Sylgard ) compared to the silicone elastomer base (Sylgard) and then mixed for 2 minutes. In order to remove the air bubbles penetrating into the solution during the mixing process it was treated with a vacuum desiccator for 20 minutes.

The mixed solution thus prepared was thinly spread on a glass plate and heat-treated for 10 to 30 minutes in an oven at 60 to 80 ° C. Partially hardened by heat treatment, but not flowable, but the piezoelectric sensing unit was placed on the silicone rubber coating layer having adhesiveness, and the mixed solution was once again thinly heat-treated in an oven at 60 to 80 ° C. for 30 minutes to produce a piezoelectric sensor.

The signal and shield lines were connected to each of the two pins connected to each electrode using an adhesive conductive tape. Ultrasonic crimping was performed using an ultrasonic homogenizer (HT-200u, HAN TECH Co.) to increase adhesion. I was. Insulators were insulated to prevent short circuits between the two electrode pins.

Next, in order to manufacture the piezoelectric sensor according to the second embodiment, the piezoelectric sensing unit (thickness 52 μm, width 5 mm, length 30 mm) was first coated (insulated layer) with silicone rubber, and then conductive carbon black paste. After coating (conductive layer), the piezoelectric sensor was manufactured by coating (elastic layer) with silicon rubber containing conductive carbon black at the end.

In the same manner as in the first embodiment, Dow Corning's Seal Guard / B silicone elastomer kit and Ketchen Black ECP600JD were used, and conductive carbon paste (solvent type) was used for domestic KLK company.

A silicone elastomer curing agent (Sylgard ) of 10% by weight relative to the silicone elastomer base (Sylgard) was added and then mixed for 2 minutes. In order to remove the air bubbles penetrating into the solution during the mixing process it was treated with a vacuum desiccator for 20 minutes. The mixed solution thus prepared was thinly spread on the surface of the piezoelectric sensing unit and heat-treated in an oven at 60 ° C. to 80 ° C. for 30 minutes.

KLK's conductive carbon paste (solvent type) was spread thinly on the surface of the silicone rubber coating layer (insulating layer) and heat-treated in an oven at 60 to 80 ° C for 30 minutes. Silicone elastomer base (Sylgard) and Ketchen Black ECP600JD, a conductive carbon black, were mixed for 2 minutes in a 97: 3 weight ratio. To this was added 10% by weight of silicone elastomer curing agent (Sylgard ) compared to the silicone elastomer base (Sylgard) and then mixed for 2 minutes. In order to remove the air bubbles penetrating into the solution during the mixing process it was treated with a vacuum desiccator for 20 minutes. The mixed solution thus prepared was thinly spread on the conductive carbon black coating layer and heat-treated in an oven at 60 to 80 ° C. for 30 minutes to produce a piezoelectric sensor.

The signal and shield lines were connected to each of the two pins connected to each electrode using an adhesive conductive tape. Ultrasonic crimping was performed using an ultrasonic homogenizer (HT-200u, HAN TECH Co.) to increase adhesion. I was. Insulators were insulated to prevent short circuits between the two electrode pins.

Next, a description will be given of measuring the exercise signal of the muscle when the wearer wears a smart pants capable of measuring the exercise signal of the muscle according to the present invention and the wearer exercises at 3 km, 5 km and 7 km per hour.

Figure 6 shows the measurement of the movement of the thigh muscle using a piezoelectric sensor (silicon rubber coating containing conductive carbon black) according to the present invention, showing the result of outputting the signal data collected by Ecnaridge 4.1 to the monitor Figure 7 is a graph showing the measurement of the EMG of the thigh when driving at 3km / h using a Bionomedics EMG module (Bionomadix EMG module) and a medical Ag / AgCl gel electrode, Figure 8 is a smart according to the present invention It is a graph showing the measurement of the thigh muscle movement when driving at 3km / h using a piezoelectric sensor (silicon rubber coating containing conductive carbon black) provided in the pants.

In addition, Figure 9 is a graph showing the measurement of the EMG of the thigh when driving at 5km / h using a Bionomedics EMG module (Bionomadix EMG module) and a medical Ag / AgCl gel electrode, Figure 10 is a smart pants according to the present invention The piezoelectric sensor (silicon rubber coating containing conductive carbon black) included in the graph shows the measurement of the thigh muscle movement when driving at 5 km / h, and FIG. 11 is a bionodic EMG module (Bionomadix EMG module). It is a graph showing the measurement of the electromyography of the thigh when running at 7km / h using a medical Ag / AgCl gel electrode, Figure 12 is a piezoelectric sensor (silicon rubber coating containing conductive carbon black) provided in the smart pants according to the present invention This is a graph showing the measurement of thigh muscle movement when driving at 7km / h.

Wearing a smart pants capable of measuring the exercise signal of the muscle according to the present invention, by inserting the piezoelectric sensor 400 in the insertion space formed between the elastic cover band 300 and the elastic tightening band 200, piezoelectric sensor 400 is pressed to some extent by the tension of the elastic tightening band 200 to be located in the thigh.

At this time, in the piezoelectric PVDF film forming the piezoelectric sensor, the C-F dipoles are changed by a force (pressure / tension), so that a current flows. Therefore, this current is obtained through a piezo film lab amplifier (Piezo Film Lab Amplifier, Measurement Specialties, Inc.) to obtain a voltage signal, and then connected to a data acquisition device (model: MP150, Biopac Systems, Inc.) to connect to AcqKnowledge. A 4.1 program was used to store the electrical signals generated by the thigh muscle movements.

The input impedance of the piezo film test amplifier was 1GΩ and a band pass filter with cut-off frequencies of 0.1 Hz and 10 Hz was used for noise reduction. The gain is adjustable up to 40 dB depending on the intensity of the input signal output, but in this experimental example it was set to 0 dB. As a result, the result of outputting the signal data collected by the acknowledgment 4.1 to the monitor is as shown in FIG.

In general, the thigh muscles must be deformed each time you walk or drive. In this experimental example, after wearing the smart pants that can measure the exercise signal of the muscle according to the present invention, while measuring the piezoelectric signal generated by the piezoelectric sensor according to the thigh muscle movement during walking or driving, the thigh per step during walking or driving EMG was also measured using a Bionomedics EMG module and a medical Ag / AgCl gel electrode to confirm that the change in muscle movement was accurately measured. The Bionomedics EMG module and the Ag / AgCl gel electrode were attached to the bottom of the left thigh and the left leg, and the piezoelectric sensor was placed on the right thigh.

In addition, in order to enhance the piezoelectric signal generated by the piezoelectric sensor according to the muscle movement of the thigh while driving, the elastic tightening band is 15% smaller than the thigh circumference so as to apply a slight pressure to the thigh of the wearer to wrap it while compressing the thigh. Made it possible. During the experiment, the piezoelectric sensor was positioned at the front center of the thigh, and the speed of the treadmill was 3 km / h, 5 km / h, and 7 km / h.

The results of these experiments are shown in Figures 7-12. EMG signal and piezoelectric signal measured at different treadmill speeds are shown for 5 seconds. As shown in FIGS. 7 and 8, when walking at 3 km / h, the EMG signal and the piezoelectric signal were the same four times every 5 seconds. In addition, the EMG signal and the piezoelectric signal were the same 5 times every 5 seconds when walking at 5 km / h (see FIGS. 9 and 10), and the EMG signal and the piezoelectric signal were the same 7 times every 5 seconds when driving at 7 km / h. Appeared (see FIGS. 11 and 12). As described above, it was confirmed that the electrical signal pattern from the piezoelectric sensor caused by the expansion and relaxation of the thigh muscle was shown to be accurately synchronized with the EMG signal regardless of walking or driving. Therefore, it is possible to check the number of steps during walking or driving or to evaluate the amount of exercise simply by wearing smart pants equipped with piezoelectric sensors instead of wearing complicated and inconvenient EMG electrodes.

In addition, when the elastic tightening band is formed in the same circumference as the basic thigh circumference to measure the thigh muscle movement during walking or driving, the deformation of the piezoelectric PVDF film caused by the expansion and contraction of the thigh muscle is small, resulting in a very large output signal. Small, making accurate measurements difficult. Therefore, the elastic tightening band should be made of a size that can press the thigh to a certain extent, the following describes an experiment for determining the appropriate size of the elastic tightening band.

Figures 13 (A), (B), (C) is 5 km in the elongation of the elastic tightening band (elongation) for wearing the piezoelectric sensor in the smart pants according to the present invention to 10%, 15%, 20%, respectively This graph shows the measurement of thigh muscle movement when driving at / h.

At this time, the position of the piezoelectric sensor was fixed to the front center of the thigh. If the piezoelectric sensor tightens the thigh more as the elongation relative to the basic thigh circumference increases, more deformation occurs in the piezoelectric PVDF film according to the deformation of the same thigh muscle, which increases the strength of the piezoelectric signal generated by the piezoelectric sensor. can see.

As shown in FIG. 13, when the elongation of the elastic tightening band is 10% when driving at 5 km / h, the signal intensity is in the range of -1 to +1.5 V as shown in FIG. 13 (A). At 15%, the signal strength ranges from -1 to + 1.8V as shown in Figure 13 (B), and at 20% the signal strength is -1.5 as shown in Figure 13 (C). It can be seen that the range is ~ + 2V. Based on the experimental results, the higher the elongation of the elastic tightening band, the larger the piezoelectric signal was obtained.

Accordingly, when the elastic tightening band is formed to have 20% elongation, a piezoelectric signal can be obtained larger than when formed to have 15% elongation. However, in the case of 20% elongation, it is inconvenient to wear the thigh. The elastic tightening band is preferably formed to have a 10 to 20% elongation around the basic thigh.

As shown in FIGS. 8, 10, and 12, the intensity and period of the piezoelectric signal according to the muscle movement according to the walking speed are different, so the kinetic energy consumed during walking or driving is the magnitude of the area of the piezoelectric signal curve with time. Seems to be proportional to. However, as shown in FIG. 14 (A), when the piezoelectric sensor surrounded by the thigh when walking at 3 km per hour generates a positive piezoelectric signal as the thigh circumference increases, when the circumference of the thigh returns to its original state, A negative piezoelectric signal is generated, so when the piezoelectric signal curve [ V ( t )] is integrated over time, a value of "0" is obtained. Therefore, [ V ( t )] in FIG. 14 (A) is rectified so that all positive signals [| After making V ( t ) |], it is assumed that the energy consumed for t hours can be estimated with the integral []. Figure 14 (C) shows the value integrated over time t after integrating the piezoelectric signal of the piezoelectric sensor mounted on the thigh during walking at 3 km / h speed. Walking at a constant speed means that the rate of energy consumption during walking is constant over time. A straight line with an integral value nearly equal in slope over a minute can be used to evaluate this energy consumption. It can be seen that there is a possibility.

15 is an exemplary photograph showing that the experiment by changing the wearing position of the piezoelectric sensor provided in the smart pants according to the present invention.

The piezoelectric sensor provided in the smart pants capable of measuring the motion signal of the muscle according to the present invention is a piezoelectric signal according to walking while the piezoelectric PVDF film is stretched or contracted in the longitudinal direction according to the change of the thigh according to the movement of the thigh muscle during walking or driving. Will occur. However, when the elongation of the elastic tightening band is increased, a piezoelectric signal due to the pressure that pushes the thighs vertically is also generated. In order to examine the effect, the position of the piezoelectric sensor is changed and the result is examined. .

In FIG. 15, only the elastic tightening band and the elastic cover band separated from the pants are worn on the thigh, and its position is changed (the piezoelectric sensor is positioned in the area indicated by the red circle in FIG. 15). Fixed at 15%. As shown in FIG. 15, it examined by placing in the front (A) and the back (B) of the thigh, the thigh outer side (C), and the inner side (D). As a result, when the piezoelectric sensor was placed in front of the thigh regardless of the treadmill speed, it was confirmed that the motion signal of the thigh muscle appeared most complicated. On the other hand, when the piezoelectric sensor was placed behind the thigh, the signal appeared slightly simple.

However, it was possible to confirm the repetitive signal pattern appearing for each step up to a certain speed at any position. As a result, the number of steps per hour is the same. In addition, although it is difficult to find a repetitive signal pattern when exercising at a higher speed than this, in this case, an additional digital filter may be added to evaluate the number of steps per hour.

FIG. 16 shows the position of the piezoelectric sensor as shown in FIG. 15 to check whether the energy consumed by the integrated value of the rectified piezoelectric signal from the piezoelectric sensor on the thigh can be evaluated even when traveling at different speeds. The plotted values are plotted over time using the rectified piezoelectric signals measured differently. As shown in Figure 16, when the piezoelectric sensor position is located in the front (A), the outer (C), the inner (D) it can be seen that the integrated value increases with increasing speed. However, when the piezoelectric sensor is located at the rear side (B), the integral value is slightly larger than the integral value at the speed of 7 km / h at the speed of 5 km / h. Therefore, it can be seen from these results that the position of PVDF film sensor is very important for evaluating energy consumption by walking or driving.

Therefore, even when the piezoelectric sensor is located at the front and the outside of the thigh, the integral value shows a linear linear relationship with time and the slope of the straight line increases according to the traveling speed, but the slope according to the speed when the piezoelectric sensor is located inside the thigh. Since the change was greatest, it is reasonable to have a piezoelectric sensor located inside the thigh in an experiment conducted to evaluate the energy consumed when walking or driving.

This time, three speeds (3 km / s) were used to verify that the energy consumed can be estimated from the integrated value of the rectified piezoelectric signal from the piezoelectric sensor on the thigh, even when running at different inclination angles on the treadmill. h, 5 km / h, 7 km / h) and the driving test for 5 minutes in a treadmill using a slope (0 °) and 5 ^o is shown in Figure 17. At this time, the piezoelectric sensor position was located inside the thigh. Integral value shows linear behavior with time regardless of driving speed and inclination. When driving experiment is performed at 5 ^o inclination regardless of driving speed, slope is steep. As the speed increased, it increased.

Based on the above results, other test methods for evaluating the energy consumed when walking or driving the integrated value of the rectified piezoelectric signal measured from the piezoelectric sensor worn on the thigh during walking or driving (3-axis accelerator sensor, exhaust carbon dioxide, Or by using a method of using oxygen consumption, the researchers discovered the possibility of developing smart pants that can easily measure exercise.

As such, by providing the elastic tightening band and the piezoelectric sensor in the pants, such as sweatshirts, it is possible to check the degree of movement by the movement of the thigh muscles caused by such exercise when walking or running with smart pants. In addition, if you exercise at a high speed or climb a slope, the thigh muscle changes inevitably increase, and accordingly, the degree of increase or decrease of the thigh muscles increases, thereby confirming that the measurement value of the piezoelectric signal increases. And the energy consumed during exercise can be more accurately assessed.

In addition, two piezo film experiments were carried out after placing piezoelectric sensors manufactured according to the first and second embodiments on a desk in order to investigate external electrical noise removing characteristics in the first and second embodiments of the piezoelectric sensor. Each signal was connected to an amplifier (Piezo Film Lab Amplifier, Measurement Specialties, Inc.) and the background signal of each sensor was measured using an AcqKnowledge 4.1 program. In this case, the input impedance of the piezo film experimental amplifier was 1 GΩ, and the cut-off frequency of the HPF (high pass filter) was 0.1 Hz, and the cut-off frequency of the low pass filter (LPF) was 10 Hz. 18 to 21 show the results of outputting the signal data collected by Acknowledge 4.1 to a monitor with 100 Hz and a gain of 0 dB.

FIG. 18 shows the background signal from the piezoelectric sensor of the first embodiment when the HPF cutoff frequency is set to 0.1 Hz and the LPF cutoff frequency is 10 Hz. FIG. 19 shows the background signal from the piezoelectric sensor of the first embodiment under the same conditions. It is shown. In both cases, high frequency noise signals were observed to be negligibly small. However, while the background signal baseline from the piezoelectric sensor of the first embodiment shows the vertical drift of low frequency, the background signal baseline from the piezoelectric sensor of the second embodiment shows no drift of any low frequency in a straight line.

20 shows a background signal from the piezoelectric sensor of the first embodiment when the HPF cutoff frequency is set to 0.1 Hz and the LPF cutoff frequency is set to 100 Hz, and FIG. 21 shows a background signal from the piezoelectric sensor of the second embodiment under the same conditions as those of FIG. The signal is shown. In this case, there is a huge difference in the background signal between the two piezoelectric sensors. In the case of the piezoelectric sensor of the first embodiment, an AC electric signal noise of 60 Hz with a V _{p -p} of 0.4 V was clearly seen, whereas an AC electric power of 60 Hz with a very small V _{p -p} of 0.004 V was obtained from the piezoelectric sensor of the second embodiment. Signal appeared. In view of this, it can be expected that the piezoelectric sensor manufactured as shown in the second embodiment has a much greater electromagnetic wave shielding effect, thereby accurately obtaining low noise pulse wave signals, respiration signals, and muscle movement signals.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100-Sweatshirts 200-Elastic Tight Bands
300-Elastic cover band 400-Piezoelectric sensor
500-shielded signal transmission line 600-control unit
610-calculator 620-storage
630-Wireless Transmitter 640-Power Supply
10-Piezoelectric Sensing Unit 11-Piezoelectric PVDF Film
12-electrode 20-insulation layer
30-conductive layer 40-elastic layer

Claims (10)

In pants that are worn for exercise or everyday life,
An elastic tightening band made of an elastic material surrounding the thigh portion of the pants and tightened while pressing the thigh of the wearer;
An elastic cover band padded in an open state to one side of the elastic tightening band to form an insertion space;
A piezoelectric sensor inserted into the insertion space and generating an electrical signal while being stretched or returned to its original state with an elastic tightening band which expands or contracts due to deformation of the thigh muscle according to the movement of the pants wearer;
A shielded signal transmission line configured to transmit an electrical signal generated by the piezoelectric sensor; And
Smart pants capable of measuring the exercise signal of the muscle, characterized in that it comprises a control unit for receiving the electrical signal transmitted through the shielding signal transmission line and calculates the amount of exercise of the muscle. The method of claim 1,
The piezoelectric sensor,
A piezoelectric sensing unit comprising a piezoelectric polyvinylidene fluoride (PVDF) film and electrodes formed on both sides of the film; And
An elastic layer surrounding the piezoelectric sensing unit;
The elastic layer is a smart pants capable of measuring the exercise signal of the muscle, characterized in that made of a silicone rubber composition containing 1 to 3% by weight of conductive carbon black. 3. The method of claim 2,
The thickness of the elastic layer is 0.1 to 1mm, the total thickness of the piezoelectric sensor is a smart pants capable of measuring the exercise signal of the muscle, characterized in that 0.2 to 2mm. 3. The method of claim 2,
The piezoelectric sensor,
An insulating layer formed between the piezoelectric sensing unit and the elastic layer and surrounding the piezoelectric sensing unit; And
Is formed between the insulating layer and the elastic layer, smart pants that can measure the exercise signal of the muscles, characterized in that it further comprises a conductive layer formed to surround the piezoelectric sensing unit formed with the insulating layer. 5. The method of claim 4,
The insulating layer is a smart pants capable of measuring the exercise signal of the muscle, characterized in that made of a silicone rubber composition. 5. The method of claim 4,
The conductive layer is a smart pants capable of measuring the exercise signal of the muscles, characterized in that containing 30% by weight or more conductive carbon black. 5. The method of claim 4,
The insulating layer has a thickness of 0.01 to 0.2 mm, the conductive layer has a thickness of 0.01 to 0.2 mm, the elastic layer has a thickness of 0.1 to 1 mm, and the total thickness of the piezoelectric sensor is 0.2 to 2 mm. Smart pants that can measure muscle movement signals. 8. The method according to any one of claims 2 to 7,
The shielding signal transmission line is placed inside the screen made of a conductor for transmitting an electrical signal, and wrapped around the insulation layer / shielding line / insulating layer in order in order to measure the motion signal of the muscles possible Smart pants. 3. The method of claim 2,
The control unit,
A calculating unit which receives the electrical signal transmitted through the shielding signal transmission line, calculates the amount of exercise of the muscle, and quantifies the degree of exercise such as calories consumed;
A storage unit configured to store an amount of exercise of the muscle calculated by the calculating unit and an electrical signal transmitted through the shielding signal transmission line; And
It comprises a wireless transmission unit consisting of a communication means for transmitting the amount of exercise of the muscles calculated in the calculation unit to the wearer's smartphone or a server system spaced apart a certain distance;
The calculation unit is configured to calculate the kinetic energy consumed for a certain time by rectifying the piezoelectric signal, which is an electrical signal generated from the piezoelectric sensor according to the deformation of the thigh muscle smart smart measurement possible pants. 8. The method according to any one of claims 2 to 7,
The elastic tightening band is a smart pants capable of measuring the exercise signal of the muscle, characterized in that it is formed to have a 10 ~ 20% elongation around the basic thigh.

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