WO2020071648A1 - Bodyweight load biofeedback device - Google Patents

Bodyweight load biofeedback device

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Publication number
WO2020071648A1
WO2020071648A1 PCT/KR2019/011501 KR2019011501W WO2020071648A1 WO 2020071648 A1 WO2020071648 A1 WO 2020071648A1 KR 2019011501 W KR2019011501 W KR 2019011501W WO 2020071648 A1 WO2020071648 A1 WO 2020071648A1
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WO
WIPO (PCT)
Prior art keywords
weight
load
user
control unit
mode
Prior art date
Application number
PCT/KR2019/011501
Other languages
French (fr)
Korean (ko)
Inventor
신명준
이민형
Original Assignee
부산대학교병원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 부산대학교병원 filed Critical 부산대학교병원
Publication of WO2020071648A1 publication Critical patent/WO2020071648A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient ; user input means
    • A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0252—Load cells

Definitions

  • the present invention relates to a weight-loading biofeedback device, and more particularly, in order to examine a physical condition related to balance, four load cells and a plurality of LED bars are built in to measure the load of body weight, and the sense of balance of the measured patient Includes an output device capable of outputting a screen related to measuring weight deviation and weight, and using the measured load cell deviation to store the patient's state through the deviation according to the patient's weight movement, and multiple connections It is a technology for weight-loading biofeedback device that checks whether a patient can act according to a doctor's instructions or follow an instruction during aerobic exercise.
  • the patient's weight load is measured, the patient's balance with respect to the weight load is evaluated, and training to switch the weight load is performed.
  • Various weight loading systems have been developed for this treatment.
  • the existing weight load system is generally equipped with an analog weight scale employing the spring principle for measuring the weight load. It is provided in a way that the zero adjustment function is manually adjusted to the 0 position, and other functions than the function of measuring the weight load are not provided.
  • a digital weight scale with a load cell was developed.
  • the digital body scale has only added a function in which a weight log value is provided through a portable terminal in connection with Bluetooth.
  • the present invention has been devised to solve the problems of the prior art as described above, and measures the load of the weight, and the weight load itself including an output device capable of outputting a screen related to the measured weight load and balance sense
  • the purpose is to provide a biofeedback device.
  • the present invention is to provide a weight-bearing biofeedback device capable of confirming whether a patient can act according to directions of a doctor or the like through a plurality of connections between weight-bearing biofeedbacks or accurately follow an instruction during aerobic exercise. There is this.
  • the weight-bearing biofeedback device includes: a housing divided into quadrants each forming 90 ° based on a center; Four load cells installed in each of the quadrants to measure the weight load in each of the quadrants; A display in which the weight loads measured by the four load cells are summed and displayed as numbers; Four LED bars which are divided into a plurality of compartments and are respectively installed in the quadrant along the outer edge of the housing; A control unit that receives the weight load from the load cell and controls the display and the LED bar; And a communication unit for transmitting and receiving a command between the external server and the control unit.
  • the control unit when the static balance training mode is input, receives the deviation value of each weight load measured by the four load cells, and determines the magnitude of the deviation value. Accordingly, it is characterized in that it grasps the user's weight point and provides the real-time feedback for the user's balance training by selectively lighting the plurality of cells of the LED bar located in the same quadrant as the weight point.
  • the control unit when the balance evaluation mode is input, receives the deviation value of each weight load measured in the four load cells during the first hour, and the deviation value According to the size of the user to grasp the weight center, and performs a preparatory operation to selectively light up the plurality of cells of the LED bar located in the same quadrant where the body weight is located, and zero point after the preparatory operation Applying as a reference, tracking the position of the body weight point determined from the four load cells that change according to the user's movement during the second time period, outputting the amount of change in the body weight point during the second time period to the display, and the second time period.
  • the average position of the weight center point is calculated and the user's left and right deviations are output to the LED bar to perform the user's balance evaluation. And it characterized in that.
  • the weight-bearing biofeedback device of the present invention is a separate device including its own output device capable of measuring the load of the weight and outputting a screen related to the measured weight load and balance. It is possible to obtain information on the measured weight load data without having to have.
  • the weight-bearing biofeedback device of the present invention through a plurality of connections, it is possible to confirm whether the patient can act according to the instructions of the doctor or the like or accurately follow the instructions during aerobic exercise, thereby enabling aerobic exercise There is.
  • FIG. 1 is a view from the top of the appearance of the weight-bearing biofeedback device according to the present invention.
  • FIG. 2 is an internal configuration diagram of a weight-bearing biofeedback device according to the present invention.
  • FIG. 3 is a side view of the weight-bearing biofeedback device according to the present invention.
  • FIG. 4 is a view looking at the outer appearance of the weight-bearing biofeedback device according to the present invention.
  • FIG. 5 is a view showing the first point trend of the LED bar according to the user's weight center movement in the weight-load biofeedback device according to the present invention.
  • FIG. 6 is a view showing the transition of the second point of the LED bar according to the user's weight center movement in the weight-load biofeedback device according to the present invention.
  • FIG. 8 is a view showing a plurality of weight-bearing biofeedback devices provided to provide aerobic exercise function through multiple connections according to the present invention.
  • FIG. 9 is a flow chart of a weight measurement mode performed by the weight-bearing biofeedback device according to the present invention.
  • FIG. 10 is a flow chart of a static balance training mode performed by the weight-bearing biofeedback device according to the present invention.
  • FIG. 11 is a flow chart of a balance evaluation mode performed by the weight-bearing biofeedback device according to the present invention.
  • FIG. 12 is a flow chart of aerobic exercise mode performed in the weight-bearing biofeedback device according to the present invention.
  • FIG. 13A is a flow chart of an aerobic exercise mode (server mode) performed by the weight-bearing biofeedback device according to the present invention.
  • FIG. 13B is a flowchart of an aerobic exercise mode (client mode) performed in the weight-loading biofeedback device according to the present invention.
  • the housing 12 is divided into quadrants that each form 90 ° with respect to the center;
  • Four load cells (4) are installed in each of the quadrants to measure the weight load in each of the quadrants;
  • a display 9 for summing the weight loads measured by the four load cells 4 and displaying them as a number;
  • Four LED bars (10) which are divided into a plurality of compartments and are respectively installed in the quadrant along the outer edge of the housing;
  • a control unit (1) for receiving the weight load from the load cell (4) and controlling the display (9) and the LED bar (10);
  • a communication unit 8 for wirelessly transmitting and receiving commands between the external server 12 and the control unit 1.
  • the quadrant is a concept that can be easily understood by a person skilled in the art, and refers to a plane divided into four by dividing the plane into x-axis (horizontal) and y-axis (vertical) by recognizing the plane as a rectangular coordinate plane.
  • the top surface is defined as the first surface, and is defined as the second surface, the third surface, and the fourth surface in the clockwise direction.
  • the control unit 1 controls the LED bar 10 to output the weight load measured by the load cell 4 located in the same quadrant as the LED bar 10.
  • control unit (1) according to the user's input, the weight measurement mode, the static balance training mode to evaluate the balance by measuring the deviation of the weight, the balance evaluation mode, the LED light that was lit when the user's weight load is detected By turning off (10), one of the aerobic exercise modes inducing the user's movement can be performed.
  • the load cell 4 includes a first load cell 4-1 located on the first surface, a second load cell 4-2 located on the second surface, and a third load cell 4 located on the third surface. -3), and a fourth load cell 4-4 located on the fourth surface.
  • the LED bar 10 is provided in a form in which a member extending in the x-axis direction and a member extending in the y-axis direction are respectively combined, and the first surface of the first surface to output data of the first load cell 4-1 is provided.
  • the first LED bars (10-1-1, 10-1-2) installed along the outside, and the second installed along the outside of the second surface to output data of the second load cell (4-2) LED bar (10-2-1, 10-2-2), a third LED bar (10-3-) installed along the outside of the third surface to output data of the third load cell 4-3 1, 10-3-2), a fourth LED bar (10-4-1, 10-4-2) installed along the outside of the fourth surface to output data of the fourth load cell 4-4 ).
  • the LED bar 10 is divided into a plurality of compartments, and is provided so that only a part of it is lit to indicate the degree of deviation of the weight load.
  • the LED bar 10 is provided to grasp the position of the user's weight center to determine the degree of deviation.
  • a plurality of cells are selectively turned on according to the user's weight center, and lit according to the movement of the user's weight center. The trend is as shown in FIGS. 5 to 7.
  • the 'X' sign means the user's weight center, and the color displayed on the LED bar 10 means lighting.
  • the weight center is located in the center of the quadrant, that is, it is located in any one of the first to fourth surfaces, but is in a central position rather than an edge of the load cell 4, corresponding The entire LED bar of the surface is lit.
  • the center of gravity is located between any two of the first to fourth surfaces, but not at the edge of the load cell 4, the whole LED bar of the two surfaces is lit.
  • the communication unit 8 is a configuration for a wireless communication connection for transmitting and receiving commands between the external server 12 and the control unit 1, for example, a Bluetooth module, wifi, BT, etc. may be used.
  • the weight-bearing biofeedback device may further include a signal amplifying unit 3 for amplifying the signals of the four load cells 4 and transmitting them to the control unit 1.
  • the signal amplification unit 3 may be provided in each of the four quadrants to amplify the signals for the four load cells 4 respectively located in the quadrants.
  • the weight-bearing biofeedback device inputs any one of a weight measuring mode, a static balance training mode, a balance evaluation mode, and an aerobic exercise mode from a power supply unit 5 for connecting or disconnecting power.
  • the mode input unit 6 to be transmitted to 1) and the user may further include a zero adjustment unit 7 to initialize the zero point as a reference for accurate measurement before measuring the weight load on the load cell 4.
  • Each of the power supply unit 5, the mode input unit 6, and the zero adjustment unit 7 may be provided as buttons that can be operated by a user, and may be provided as separate button units.
  • the weight-bearing biofeedback device is provided in multiple pieces, and may be multiple-connected to one external server 11 through each communication unit 8.
  • the external server 11 may induce a user's activity by transmitting a command to any one of the multiple weight-connected biofeedback devices 1.
  • each communication unit 8 and the external server 11 are connected to each of the individual communication units 8 and the external server 11, so that they can be multiplexed by the number of weight-bearing biofeedback devices.
  • each communication unit 8 and the external server 11 is composed of one weight-loading biofeedback device operated as a host and a plurality of other weight-loading biofeedback devices operated as a client, only the host. It is connected to the external server 11 and the client is connected to the host to perform multiple connections more quickly.
  • control unit 1 in which the weight-bearing biofeedback device according to the present invention performs a weight measurement mode, a static balance training mode, a balance evaluation mode, and an aerobic exercise mode will be described in detail.
  • the weight measurement mode is automatically performed when there is no user's mode input, and in the weight measurement mode, the control unit 1 measures each of the four load cells 4 It is configured to output the sum of the weight load on the display (9). That is, if there is a user's mode input, the control unit 1 performs the input mode.
  • control unit 1 may generate weight log data for comparison with the previously measured weight load, and transmit it to the external server 11.
  • the control unit 1 receives the deviation value of each weight load measured by the four load cells 4. Thereafter, the control unit 1 grasps the location of the user's weight center in the load cell 4 according to the size of the input deviation value. Then, it is configured to selectively turn on the plurality of cells of the LED bar 10 located in the same quadrant where the weight center is located to provide real-time feedback for the user's balance training. Specifically, the control unit 1 has an effect of classifying the magnitude (how far from the center) of the deviation value of the weight load measured by the load cell 4 located in each quadrant.
  • control unit 1 may generate static balance log data for comparison with the static balance training mode previously measured and transmit it to the external server 11.
  • the control unit 1 first, for the first time, the weight value of the deviation measured by each of the four load cells (4) Upon receiving the input, a user's weight center is grasped according to the size of the deviation value, and a preparation operation for selectively lighting the plurality of cells of the LED bar located in the same quadrant as the weight center is performed.
  • the body weight point for the second time It is configured to output the amount of change to the display (9), calculate the average position of the weight center during the second time, and output the left and right bias of the user to the LED (10) to perform the user's balance evaluation. That is, in the balance evaluation mode, the static balance training mode is performed for the first time as a preparation operation, and then the balance is evaluated without the lighting of the LED 10 for the second time after the zero point adjustment, and the result is finalized. Is to output to
  • the control unit 1 measures the user's weight load on the load cell 4 for 5 seconds. At this time, as in the static balance training mode described above, the control unit 1 grasps the position of the user's weight center according to the deviation value of each weight load measured by the four load cells 4, and the weight score is The plurality of cells of the LED bar 10 positioned in the same quadrant as the positioned quadrant are selectively lit to provide feedback on the balance maintenance state of the user before the actual balance evaluation.
  • the control unit 1 tracks the change in the user's weight point for the second time, preferably 10 seconds, for a substantial balance evaluation. At this time, it is important not to light the LED bar 10 so that the user can not grasp the location of his or her weight center.
  • the controller 1 outputs a change in the weight center to the display 9 to express the tracked result explicitly, calculates the average of the weight center, and calculates the average of the weight center, where the user's bias is further inclined. Is to output through the LED bar (10).
  • the control unit 1 when the aerobic exercise mode is input, the control unit 1 receives an identification number from the external server 11 through the communication unit 8, and the external server ( 11) and performs multiple connections between the weight-bearing biofeedback device provided with a plurality of dogs.
  • the weight-loading biofeedback device corresponding to the identification number transmitted from the external server 11 is activated. Accordingly, in the activated weight-bearing biofeedback device, when the control unit 1 lights up the LED 10 and the load cell 4 detects a weight load, the control unit 1 lights up. Turn off the LED bar (10).
  • a user in the aerobic exercise mode, can provide an aerobic exercise program through tracking of the LED bar 10, and the user moves to the lighted load cell 4 in the aerobic exercise mode to move the load cell 4 ) Can be transmitted to the external server 11 by scoring the reaction time and accuracy data so that it is turned off.
  • the external server 11 may individually call the weight-bearing biofeedback devices in the order of identification number, or is relatively weak due to the deviation of the weight load measured in the static balance training mode and the balance evaluation mode.
  • the exercise program can be modified by intensively calling the weight-bearing biofeedback device at the corresponding location.
  • the weight-bearing biofeedback device may be placed on a wall rather than on the floor to promote upper limb movement.
  • the aerobic exercise mode operates one weight-loading biofeedback device in a server mode and the remaining plurality of weight-loading biofeedback devices in a client mode, thereby providing the externally loaded server 11 and a plurality of weight-loading biofeedback devices.
  • Multiple connections between devices can be performed more easily.
  • Fig. 13A shows the operation algorithm in the server mode
  • Fig. 13B shows the operation algorithm in the client mode.
  • the weight-load biofeedback device set to the server mode is multi-connected with a plurality of clients by replacing the functions of the external server, and assigns individual identification numbers to each client. Perform aerobic exercise mode by calling randomly.
  • the client mode as shown in Figure 13b, similar to the conventional aerobic exercise mode, aerobic exercise mode in a manner that turns on the LED bar upon receiving an individual identification number from the weight-loading biofeedback device set to the server mode.
  • the weight-load biofeedback device set to the server mode and the client mode transmits a light-off event to the weight-load biofeedback device set to the server mode when the LED is turned off, in the client mode.
  • an algorithm configured to light up the LED bar by randomly calling again may be included.

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Abstract

The present invention relates to a bodyweight load biofeedback device and, more specifically, provides a technology regarding a bodyweight load biofeedback device wherein the device has four loadcells and multiple LED bars embedded therein so as to inspect a physical condition related to the sense of balance, thereby measuring the load of bodyweight; the device comprises an output device capable of outputting a screen related to the measured sense of balance of a patient, thereby measuring the bodyweight and the deviation of the bodyweight; the state of balance of the patient is stored through a deviation resulting from the patient's bodyweight movement by using a measured loadcell deviation; and it is confirmed, through multiple connections, whether or not the patient can perform activities according to instructions from a medical doctor, for example, or can accurately follow instructions during an aerobic exercise. [Representative drawing] figure 1

Description

체중부하 바이오피드백 장치Weight-load biofeedback device
본 발명은 체중부하 바이오피드백 장치에 관한 것으로, 더욱 상세하게는 균형감각과 관련된 신체상태를 검사하기 위하여 4개의 로드셀과 다수 개의 LED Bar이 내장되어 체중의 부하를 측정하고, 측정된 환자의 균형 감각과 관련된 화면을 출력할 수 있는 출력장치를 포함하여 체중의 편위 및 체중을 측정하고, 측정된 로드셀의 편위를 이용하여 환자의 체중 이동에 따른 편위를 통해 환자의 상태를 저장하고, 복수의 연결을 통해 환자가 의사 등의 지시에 따라 활동하거나 유산소 운동 중에 정확하게 지시에 따를 수 있는지 상태를 확인하는 체중부하 바이오피드백 장치에 관한 기술이다.The present invention relates to a weight-loading biofeedback device, and more particularly, in order to examine a physical condition related to balance, four load cells and a plurality of LED bars are built in to measure the load of body weight, and the sense of balance of the measured patient Includes an output device capable of outputting a screen related to measuring weight deviation and weight, and using the measured load cell deviation to store the patient's state through the deviation according to the patient's weight movement, and multiple connections It is a technology for weight-loading biofeedback device that checks whether a patient can act according to a doctor's instructions or follow an instruction during aerobic exercise.
치료 등의 목적으로 환자의 체중부하를 측정하고, 체중부하에 대한 환자의 균형상태를 평가하며, 체중부하를 전환하는 훈련이 실시된다. 이러한 치료를 위해 다양한 체중부하 시스템이 개발되었다.For the purpose of treatment, the patient's weight load is measured, the patient's balance with respect to the weight load is evaluated, and training to switch the weight load is performed. Various weight loading systems have been developed for this treatment.
우선, 기존의 체중부하 시스템은 일반적으로 체중부하를 측정하기 위한 스프링 원리를 채용한 아날로그 체중계로 구비되었다. 이는 영점조절 기능이 수동으로 0위치까지 조정하는 방식으로 제공되며, 체중부하를 측정하는 기능 외 다른 기능은 제공되지 않는다.First, the existing weight load system is generally equipped with an analog weight scale employing the spring principle for measuring the weight load. It is provided in a way that the zero adjustment function is manually adjusted to the 0 position, and other functions than the function of measuring the weight load are not provided.
다음으로, 체중부하 시스템의 한 종류로써, 로드셀을 구비한 디지털 체중계가 개발되었다. 상기 디지털 체중계는 체중부하를 측정하는 기능 외에, 블루투스가 연동되어 휴대용 단말기를 통해 체중 로그값이 제공되는 기능만 추가되었다.Next, as one type of weight load system, a digital weight scale with a load cell was developed. In addition to the function of measuring the weight load, the digital body scale has only added a function in which a weight log value is provided through a portable terminal in connection with Bluetooth.
다음으로, 체중부하 시스템의 한 종류로써, 로드셀을 구비한 밸런스보드가 개발되었다. 이는 일본 닌텐도 사의 “Wii”의 상품이 대표적인데, 이는 체중부하를 다양한 컨텐츠의 게임에 적용시킨 것이 특징이다. 그러나, 밸런스보드 자체에 디스플레이가 없어 체중에 대한 정보조차도 별도의 디스플레이를 연동한 후 얻을 수 있으며, 별도의 디스플레이 이외에도 Wii 게임기와 연동한 후 사용되는 방식으로 추가적인 장치가 필요한 단점이 있다.Next, as a type of the weight load system, a balance board with a load cell was developed. This is typical of Nintendo's “Wii” product, which is characterized by applying a weight load to games with various contents. However, since there is no display on the balance board itself, even weight information can be obtained after linking a separate display. In addition to the separate display, there is a disadvantage in that an additional device is required in a manner used after linking with a Wii game machine.
다음으로, 의료 분야에서 사용된 체중부하 시스템의 한 종류로써, 압력값을 이용한 “Biorescue”가 개발되었다. 이는 고가의 의료기기로써, PC, 별도의 출력장치와 연동되어 정보를 표시하는 점에서 “Wii”와 동일한 단점을 가진다.Next, “Biorescue” using a pressure value was developed as a type of weight load system used in the medical field. This is an expensive medical device, and has the same disadvantage as “Wii” in that it displays information in connection with a PC and a separate output device.
체중부하 시스템에 대한 종래의 기술을 살펴보면, 대한민국 등록실용신안공보 제20-0215314호와 같이, 무게(체중)를 감지하는 적어도 2개 이상의 로드셀을 좌우 대칭으로 설치하고, 이 로드셀들을 통해 체중을 측정하여 인체의 좌/우 대칭에 대한 치우침, 균형정도 등을 컴퓨터 프로그램을 통해 컴퓨터 모니터상에서 나타냄으로써 바람직한 자세 균형을 진단할 수 있도록 한 전자식 자세 균형 진단장치가 개시되었다. 상기 종래문헌에 의하면, 체중부하뿐만 아니라 균형정도를 측정할 수 있으나, 상술한 종래기술과 같이 컴퓨터가 별도로 구비되어야 하는 단점이 존재한다.Looking at the conventional technology for the weight load system, as shown in the Republic of Korea Registered Utility Model Publication No. 20-0215314, at least two or more load cells for detecting the weight (weight) are installed symmetrically, and the weight is measured through these load cells Thus, an electronic posture balance diagnosis apparatus has been disclosed, which enables a desired posture balance to be diagnosed by displaying the skew, balance degree, etc. of the human body on the computer monitor through a computer program. According to the conventional document, it is possible to measure not only the weight load, but also the degree of balance, but there is a disadvantage in that a computer must be separately provided, as in the above-described prior art.
[특허문헌] 대한민국 등록실용신안공보 제20-0215314호 (2000.12.19.)[Patent Document] Republic of Korea Utility Model Publication No. 20-0215314 (2000.12.19.)
본 발명은 상술한 바와 같은 선행 기술의 문제점을 해결하기 위하여 안출된 것으로, 체중의 부하를 측정하고, 측정된 체중부하 및 균형 감각과 관련된 화면을 출력할 수 있는 출력장치를 자체적으로 포함하는 체중부하 바이오피드백 장치를 제공하는 데 그 목적이 있다.The present invention has been devised to solve the problems of the prior art as described above, and measures the load of the weight, and the weight load itself including an output device capable of outputting a screen related to the measured weight load and balance sense The purpose is to provide a biofeedback device.
또한, 본 발명은 체중부하 바이오피드백 간의 복수의 연결을 통해 환자가 의사 등의 지시에 따라 활동하거나 유산소 운동 중에 정확하게 지시에 따를 수 있는지 상태를 확인할 수 있는 체중부하 바이오피드백 장치를 제공하는 데 그 목적이 있다.In addition, the present invention is to provide a weight-bearing biofeedback device capable of confirming whether a patient can act according to directions of a doctor or the like through a plurality of connections between weight-bearing biofeedbacks or accurately follow an instruction during aerobic exercise. There is this.
본 발명이 해결하고자 하는 과제들은 이상에서 언급한 과제로 제한되지 않으며, 여기에 언급되지 않은 본 발명이 해결하려는 또 다른 과제들은 아래의 기재로부터 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems to be solved by the present invention not mentioned herein are described below to those skilled in the art to which the present invention pertains. It will be clearly understood.
본 발명에 따른 체중부하 바이오피드백 장치는, 중심을 기준으로 각각 90°를 이루는 사분면으로 구분되는 하우징; 상기 사분면에 각각 1개씩 설치되어, 상기 각각의 사분면에서의 체중부하를 측정하는 4개의 로드셀; 상기 4개의 로드셀이 측정한 체중부하를 합산하여 숫자로 표시하는 디스플레이; 다수 개의 칸으로 구획되며, 상기 하우징의 가장자리 외측을 따라 상기 사분면에 각각 설치되는 4개의 엘이디바; 상기 로드셀로부터 체중부하를 입력받아 상기 디스플레이 및 상기 엘이디바를 제어하는 제어부; 및 외부서버와 상기 제어부 간의 명령을 송수신하는 통신부;를 포함하고, 상기 제어부는, 상기 엘이디바가 상기 엘이디바와 동일한 사분면에 위치한 상기 로드셀이 측정한 체중부하를 출력하도록 제어하고, 사용자의 입력에 따라 체중측정모드, 정적균형훈련모드, 균형평가모드 및 유산소운동모드 중 어느 하나를 수행하는 것을 특징으로 한다.The weight-bearing biofeedback device according to the present invention includes: a housing divided into quadrants each forming 90 ° based on a center; Four load cells installed in each of the quadrants to measure the weight load in each of the quadrants; A display in which the weight loads measured by the four load cells are summed and displayed as numbers; Four LED bars which are divided into a plurality of compartments and are respectively installed in the quadrant along the outer edge of the housing; A control unit that receives the weight load from the load cell and controls the display and the LED bar; And a communication unit for transmitting and receiving a command between the external server and the control unit. The control unit controls the LED bar to output a weight load measured by the load cell located in the same quadrant as the LED bar, and controls the weight according to a user input. It is characterized by performing any one of the measurement mode, static balance training mode, balance evaluation mode and aerobic exercise mode.
또한, 본 발명에 따른 체중부하 바이오피드백 장치는, 사용자의 모드 입력이 없으면, 상기 제어부는, 상기 4개의 로드셀에서 측정한 각각의 체중부하를 합산한 값을 상기 디스플레이에 출력시키는 것을 특징으로 한다.In addition, in the weight feedback biofeedback device according to the present invention, if there is no user's mode input, the controller outputs a value obtained by summing each weight load measured by the four load cells on the display.
또한, 본 발명에 따른 체중부하 바이오피드백 장치는, 상기 정적균형훈련모드가 입력되면, 상기 제어부는, 상기 4개의 로드셀에서 측정한 각각의 체중부하의 편위값을 입력받고, 상기 편위값의 크기에 따라 사용자의 체중심점을 파악하고, 상기 체중심점이 위치된 사분면과 동일한 사분면에 위치한 상기 엘이디바의 상기 다수 개의 칸을 선택적으로 점등하여 사용자의 균형훈련에 대한 실시간 피드백을 제공하는 것을 특징으로 한다.In addition, in the weight feedback biofeedback device according to the present invention, when the static balance training mode is input, the control unit receives the deviation value of each weight load measured by the four load cells, and determines the magnitude of the deviation value. Accordingly, it is characterized in that it grasps the user's weight point and provides the real-time feedback for the user's balance training by selectively lighting the plurality of cells of the LED bar located in the same quadrant as the weight point.
또한, 본 발명에 따른 체중부하 바이오피드백 장치는, 상기 균형평가모드가 입력되면, 상기 제어부는, 제1시간 동안 상기 4개의 로드셀에서 측정한 각각의 체중부하의 편위값을 입력받아, 상기 편위값의 크기에 따라 사용자의 체중심점을 파악하고, 상기 체중심점이 위치된 사분면과 동일한 사분면에 위치한 상기 엘이디바의 상기 다수 개의 칸을 선택적으로 점등하는 준비동작을 수행하고, 상기 준비동작 이후 시점을 영점기준으로 적용하여, 제2시간 동안 사용자의 움직임에 따라 변화하는 상기 4개의 로드셀로부터 파악되는 체중심점 위치를 트래킹하여, 상기 제2시간 동안 체중심점의 변화량을 상기 디스플레이에 출력하고, 상기 제2시간 동안 체중심점의 평균위치를 계산하여 사용자의 좌우편향을 상기 엘이디바에 출력시켜 사용자의 균형평가를 수행하는 것을 특징으로 한다.In addition, in the weight feedback biofeedback device according to the present invention, when the balance evaluation mode is input, the control unit receives the deviation value of each weight load measured in the four load cells during the first hour, and the deviation value According to the size of the user to grasp the weight center, and performs a preparatory operation to selectively light up the plurality of cells of the LED bar located in the same quadrant where the body weight is located, and zero point after the preparatory operation Applying as a reference, tracking the position of the body weight point determined from the four load cells that change according to the user's movement during the second time period, outputting the amount of change in the body weight point during the second time period to the display, and the second time period. During the calculation, the average position of the weight center point is calculated and the user's left and right deviations are output to the LED bar to perform the user's balance evaluation. And it characterized in that.
또한, 본 발명에 따른 체중부하 바이오피드백 장치는, 상기 유산소운동모드가 입력되면, 상기 제어부는, 상기 통신부를 통해 상기 외부서버와 다수 개로 구비되는 상기 체중부하 바이오피드백 장치 간의 다중연결을 수행하여, 상기 외부서버로부터 각각의 체중부하 바이오피드백 장치에 대한 식별번호를 제공받고, 상기 다수 개의 체중부하 바이오피드백 장치 중, 상기 외부서버에서 호출되는 식별번호에 대응되는 상기 체중부하 바이오피드백 장치가 활성화되어, 상기 활성화된 체중부하 바이오피드백 장치에 있어서, 상기 제어부가 상기 엘이디바를 점등하고, 상기 로드셀이 체중부하를 감지하면 상기 제어부가 상기 점등된 엘이디바를 소등하여, 사용자에게 상기 엘이디바의 추적을 통한 유산소운동 프로그램을 제공하는 것을 특징으로 한다.In addition, in the weight-bearing biofeedback device according to the present invention, when the aerobic exercise mode is input, the control unit performs multiple connections between the external server and the weight-bearing biofeedback device provided in plural through the communication unit, An identification number for each weight-load biofeedback device is provided from the external server, and among the plurality of weight-load biofeedback devices, the weight-load biofeedback device corresponding to the identification number called by the external server is activated, In the activated weight-bearing biofeedback device, when the control unit lights up the LED bar and the load cell detects a weight load, the control unit turns off the lighted LED bar, and gives the user aerobic exercise through tracking of the LED bar. It is characterized by providing a program.
상기 과제의 해결 수단에 의해, 본 발명의 체중부하 바이오피드백 장치는, 체중의 부하를 측정하고, 측정된 체중부하 및 균형 감각과 관련된 화면을 출력할 수 있는 출력장치를 자체적으로 포함하여 별도의 장치를 구비할 필요 없이 측정된 체중부하 데이터에 대한 정보를 획득할 수 있는 효과가 있다.By means of solving the above problem, the weight-bearing biofeedback device of the present invention is a separate device including its own output device capable of measuring the load of the weight and outputting a screen related to the measured weight load and balance. It is possible to obtain information on the measured weight load data without having to have.
또한, 본 발명의 체중부하 바이오피드백 장치는, 복수의 연결을 통해 환자가 의사 등의 지시에 따라 활동하거나 유산소 운동 중에 정확하게 지시에 따를 수 있는지 상태를 확인할 수 있고 이에 따라 유산소 운동을 가능하게 하는 효과가 있다.In addition, the weight-bearing biofeedback device of the present invention, through a plurality of connections, it is possible to confirm whether the patient can act according to the instructions of the doctor or the like or accurately follow the instructions during aerobic exercise, thereby enabling aerobic exercise There is.
도 1은 본 발명에 따른 체중부하 바이오피드백 장치의 외형을 위에서 바라본 도면이다.1 is a view from the top of the appearance of the weight-bearing biofeedback device according to the present invention.
도 2는 본 발명에 따른 체중부하 바이오피드백 장치의 내부 구성도이다.2 is an internal configuration diagram of a weight-bearing biofeedback device according to the present invention.
도 3은 본 발명에 따른 체중부하 바이오피드백 장치의 측면도이다.3 is a side view of the weight-bearing biofeedback device according to the present invention.
도 4는 본 발명에 따른 체중부하 바이오피드백 장치의 외형을 아래에서 바라본 도면이다.4 is a view looking at the outer appearance of the weight-bearing biofeedback device according to the present invention.
도 5는 본 발명에 따른 체중부하 바이오피드백 장치에서 사용자의 체중심점 이동에 따른 엘이디바의 제1점등추이를 나타낸 도면이다.5 is a view showing the first point trend of the LED bar according to the user's weight center movement in the weight-load biofeedback device according to the present invention.
도 6은 본 발명에 따른 체중부하 바이오피드백 장치에서 사용자의 체중심점 이동에 따른 엘이디바의 제2점등추이를 나타낸 도면이다.6 is a view showing the transition of the second point of the LED bar according to the user's weight center movement in the weight-load biofeedback device according to the present invention.
도 7은 본 발명에 따른 체중부하 바이오피드백 장치에서 사용자의 체중심점 이동에 따른 엘이디바의 제3점등추이를 나타낸 도면이다.7 is a view showing a third point transition of the LED bar according to the movement of the user's weight point in the weight-loading biofeedback device according to the present invention.
도 8은 본 발명에 따른 다중연결을 통해 유산소 운동 기능을 제공하기 위해 체중부하 바이오피드백 장치가 다수 개 구비된 모습을 나타낸 도면이다.8 is a view showing a plurality of weight-bearing biofeedback devices provided to provide aerobic exercise function through multiple connections according to the present invention.
도 9는 본 발명에 따른 체중부하 바이오피드백 장치에서 수행하는 체중측정모드의 순서도이다.9 is a flow chart of a weight measurement mode performed by the weight-bearing biofeedback device according to the present invention.
도 10은 본 발명에 따른 체중부하 바이오피드백 장치에서 수행하는 정적균형훈련모드의 순서도이다.10 is a flow chart of a static balance training mode performed by the weight-bearing biofeedback device according to the present invention.
도 11은 본 발명에 따른 체중부하 바이오피드백 장치에서 수행하는 균형평가모드의 순서도이다.11 is a flow chart of a balance evaluation mode performed by the weight-bearing biofeedback device according to the present invention.
도 12는 본 발명에 따른 체중부하 바이오피드백 장치에서 수행하는 유산소운동모드의 순서도이다.12 is a flow chart of aerobic exercise mode performed in the weight-bearing biofeedback device according to the present invention.
도 13a는 본 발명에 따른 체중부하 바이오피드백 장치에서 수행하는 유산소운동모드(서버모드)의 순서도이다.13A is a flow chart of an aerobic exercise mode (server mode) performed by the weight-bearing biofeedback device according to the present invention.
도 13b는 본 발명에 따른 체중부하 바이오피드백 장치에서 수행하는 유산소운동모드(클라이언트모드)의 순서도이다.13B is a flowchart of an aerobic exercise mode (client mode) performed in the weight-loading biofeedback device according to the present invention.
이상과 같은 본 발명에 대한 해결하고자 하는 과제, 과제의 해결 수단, 발명의 효과를 포함한 구체적인 사항들은 다음에 기재할 실시예 및 도면들에 포함되어 있다. 본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다.The problems to be solved for the present invention as described above, the means for solving the problems, and specific matters including the effects of the invention are included in the following embodiments and drawings. Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings.
본 발명에 따른 체중부하 바이오피드백 장치는 도 1 내지 도 4에 도시된 바와 같이, 중심을 기준으로 각각 90°를 이루는 사분면으로 구분되는 하우징(12); 상기 사분면에 각각 1개씩 설치되어, 상기 각각의 사분면에서의 체중부하를 측정하는 4개의 로드셀(4); 상기 4개의 로드셀(4)이 측정한 체중부하를 합산하여 숫자로 표시하는 디스플레이(9); 다수 개의 칸으로 구획되며, 상기 하우징의 가장자리 외측을 따라 상기 사분면에 각각 설치되는 4개의 엘이디바(10); 상기 로드셀(4)로부터 체중부하를 입력받아 상기 디스플레이(9) 및 상기 엘이디바(10)를 제어하는 제어부(1); 및 외부서버(12)와 상기 제어부(1) 간의 명령을 무선으로 송수신하는 통신부(8);를 포함한다.Weight-bearing biofeedback device according to the present invention, as shown in Figures 1 to 4, the housing 12 is divided into quadrants that each form 90 ° with respect to the center; Four load cells (4) are installed in each of the quadrants to measure the weight load in each of the quadrants; A display 9 for summing the weight loads measured by the four load cells 4 and displaying them as a number; Four LED bars (10), which are divided into a plurality of compartments and are respectively installed in the quadrant along the outer edge of the housing; A control unit (1) for receiving the weight load from the load cell (4) and controlling the display (9) and the LED bar (10); And a communication unit 8 for wirelessly transmitting and receiving commands between the external server 12 and the control unit 1.
여기서, 사분면은 통상의 기술자라면 용이하게 파악할 수 있는 개념으로, 평면을 직교좌표평면으로 인식하여 x축(가로)과 y축(세로)으로 나누어 4개로 등분한 면을 의미하며, 본 명세서에서는 좌측 상단의 면을 제1면으로 하여, 시계 방향으로 제2면, 제3면, 제4면으로 정의한다.Here, the quadrant is a concept that can be easily understood by a person skilled in the art, and refers to a plane divided into four by dividing the plane into x-axis (horizontal) and y-axis (vertical) by recognizing the plane as a rectangular coordinate plane. The top surface is defined as the first surface, and is defined as the second surface, the third surface, and the fourth surface in the clockwise direction.
상기 제어부(1)는, 상기 엘이디바(10)가 상기 엘이디바(10)와 동일한 사분면에 위치한 상기 로드셀(4)이 측정한 체중부하를 출력하도록 제어한다.The control unit 1 controls the LED bar 10 to output the weight load measured by the load cell 4 located in the same quadrant as the LED bar 10.
또한, 상기 제어부(1)는 사용자의 입력에 따라, 체중측정모드, 체중의 편위를 측정하여 균형을 평가하는 정적균형훈련모드와 균형평가모드, 사용자의 체중부하가 감지되면 점등되어 있던 상기 엘이디바(10)가 소등됨으로써 사용자의 움직임을 유도하는 유산소운동모드 중 어느 하나를 수행할 수 있다.In addition, the control unit (1) according to the user's input, the weight measurement mode, the static balance training mode to evaluate the balance by measuring the deviation of the weight, the balance evaluation mode, the LED light that was lit when the user's weight load is detected By turning off (10), one of the aerobic exercise modes inducing the user's movement can be performed.
상기 로드셀(4)은 상기 제1면에 위치하는 제1로드셀(4-1), 상기 제2면에 위치하는 제2로드셀(4-2), 상기 제3면에 위치하는 제3로드셀(4-3), 상기 제4면에 위치하는 제4로드셀(4-4)을 포함한다.The load cell 4 includes a first load cell 4-1 located on the first surface, a second load cell 4-2 located on the second surface, and a third load cell 4 located on the third surface. -3), and a fourth load cell 4-4 located on the fourth surface.
상기 엘이디바(10)는 x축 방향으로 연장되는 부재와 y축 방향으로 연장되는 부재가 합쳐진 형태로 각각 마련되며, 상기 제1로드셀(4-1)의 데이터를 출력하기 위해 상기 제1면의 외측을 따라 설치되는 제1엘이디바(10-1-1, 10-1-2), 상기 제2로드셀(4-2)의 데이터를 출력하기 위해 상기 제2면의 외측을 따라 설치되는 제2엘이디바(10-2-1, 10-2-2), 상기 제3로드셀(4-3)의 데이터를 출력하기 위해 상기 제3면의 외측을 따라 설치되는 제3엘이디바(10-3-1, 10-3-2), 상기 제4로드셀(4-4)의 데이터를 출력하기 위해 상기 제4면의 외측을 따라 설치되는 제4엘이디바(10-4-1, 10-4-2)를 포함한다. 또한, 상기 엘이디바(10)는 다수 개의 칸으로 구획되어, 체중부하의 편위 정도를 표시하기 위해 일부만 점등될 수 있도록 마련된다.The LED bar 10 is provided in a form in which a member extending in the x-axis direction and a member extending in the y-axis direction are respectively combined, and the first surface of the first surface to output data of the first load cell 4-1 is provided. The first LED bars (10-1-1, 10-1-2) installed along the outside, and the second installed along the outside of the second surface to output data of the second load cell (4-2) LED bar (10-2-1, 10-2-2), a third LED bar (10-3-) installed along the outside of the third surface to output data of the third load cell 4-3 1, 10-3-2), a fourth LED bar (10-4-1, 10-4-2) installed along the outside of the fourth surface to output data of the fourth load cell 4-4 ). In addition, the LED bar 10 is divided into a plurality of compartments, and is provided so that only a part of it is lit to indicate the degree of deviation of the weight load.
구체적으로, 상기 엘이디바(10)는 사용자의 체중심점의 위치를 파악하여 편위 정도를 파악하도록 마련되는데, 사용자의 체중심점에 따라 다수 개의 칸이 선택적으로 점등되며, 사용자의 체중심점 이동에 따른 점등 추이는 도 5 내지 도 7에 도시된 바와 같다. ‘X’표시는 사용자의 체중심점을 의미하며, 상기 엘이디바(10)에 표시된 색깔은 점등을 의미한다.Specifically, the LED bar 10 is provided to grasp the position of the user's weight center to determine the degree of deviation. A plurality of cells are selectively turned on according to the user's weight center, and lit according to the movement of the user's weight center. The trend is as shown in FIGS. 5 to 7. The 'X' sign means the user's weight center, and the color displayed on the LED bar 10 means lighting.
우선, 체중심점이 도 5에 도시된 바와 같이, 상기 로드셀(4)의 정중앙에 위치하면, 즉 상기 제1로드셀 내지 상기 제4로드셀의 정중앙에 위치하면 상기 제1면 내지 상기 제4면의 엘이디바(10) 전체가 점등된다.First, as shown in FIG. 5, when the weight point is located at the center of the load cell 4, that is, when it is located at the center of the first load cell to the fourth load cell, the LEDs of the first to fourth surfaces are The entire bar 10 is lit.
다음으로, 도 6에 도시된 바와 같이, 체중심점이 분면중앙에 위치하면, 즉 상기 제1면 내지 상기 제4면 중 어느 하나에 위치하되 상기 로드셀(4)의 가장자리가 아닌 중앙 위치이면, 해당 면의 엘이디바 전체가 점등되는 것이다. 또한, 체중심점이 상기 제1면 내지 상기 제4면 중 어느 두 면의 사이에 위치하되 상기 로드셀(4)의 가장자리가 아닌 중앙 위치이면, 해당 두 면의 엘이디바 전체가 점등되는 것이다.Next, as shown in FIG. 6, if the weight center is located in the center of the quadrant, that is, it is located in any one of the first to fourth surfaces, but is in a central position rather than an edge of the load cell 4, corresponding The entire LED bar of the surface is lit. In addition, if the center of gravity is located between any two of the first to fourth surfaces, but not at the edge of the load cell 4, the whole LED bar of the two surfaces is lit.
다음으로, 도 7에 도시된 바와 같이, 체중심점이 가장자리 측면에 위치하면, 즉 상기 제1면 내지 상기 제4면 중 어느 하나에 위치하고 상기 로드셀(4)의 가장자리 위치이면, 해당 면의 엘이디바에서 체중심점이 위치한 일부만 점등되는 것이다. 또한, 체중심점이 상기 제1면 내지 상기 제4면 중 어느 두 면의 사이에 위치하고 상기 로드셀(4)의 가장자리 위치이면, 해당 두 면의 엘이디바에서 체중심점이 위치한 일부가 점등되는 것이다.Next, as shown in Figure 7, if the weight center point is located on the side of the edge, that is, located on any one of the first surface to the fourth surface, the position of the edge of the load cell 4, the LED bar of the surface Only the part where the weight center is located is lit. In addition, if the weight center is located between any two of the first to fourth surfaces and the edge position of the load cell 4, a portion of the weight center located on the LED bar of the two surfaces is lit.
상기 통신부(8)는 외부서버(12)와 상기 제어부(1) 간의 명령을 송수신하기 위한 무선통신연결을 위한 구성으로써, 예를 들면 블루투스 모듈, wifi, BT 등이 사용될 수 있다.The communication unit 8 is a configuration for a wireless communication connection for transmitting and receiving commands between the external server 12 and the control unit 1, for example, a Bluetooth module, wifi, BT, etc. may be used.
본 발명에 따른 체중부하 바이오피드백 장치는 상기 4개의 로드셀(4) 각각의 신호를 증폭하여 상기 제어부(1)에 전달하는 신호증폭부(3)가 더 구비될 수 있다. 상기 신호증폭부(3)는 사분면에 각각 위치한 상기 4개의 로드셀(4)에 대한 신호를 각각 증폭하기 위해, 사분면 각각에 4개로 구비될 수 있다.The weight-bearing biofeedback device according to the present invention may further include a signal amplifying unit 3 for amplifying the signals of the four load cells 4 and transmitting them to the control unit 1. The signal amplification unit 3 may be provided in each of the four quadrants to amplify the signals for the four load cells 4 respectively located in the quadrants.
또한, 본 발명에 따른 체중부하 바이오피드백 장치는 전원을 연결 또는 차단시키는 전원부(5), 사용자로부터 체중측정모드, 정적균형훈련모드, 균형평가모드 및 유산소운동모드 중 어느 하나를 입력받아 상기 제어부(1)에 전달하는 모드입력부(6) 및 사용자가 상기 로드셀(4)에서 체중부하를 측정하기 전 정확한 측정을 위해 기준이 되는 0점을 초기화시키는 영점조정부(7)를 더 포함할 수 있다. 상기 전원부(5), 상기 모드입력부(6) 및 상기 영점조정부(7)는 각각 사용자가 조작할 수 있는 버튼으로 마련되어, 별도의 버튼부로 구비될 수 있다.In addition, the weight-bearing biofeedback device according to the present invention inputs any one of a weight measuring mode, a static balance training mode, a balance evaluation mode, and an aerobic exercise mode from a power supply unit 5 for connecting or disconnecting power. The mode input unit 6 to be transmitted to 1) and the user may further include a zero adjustment unit 7 to initialize the zero point as a reference for accurate measurement before measuring the weight load on the load cell 4. Each of the power supply unit 5, the mode input unit 6, and the zero adjustment unit 7 may be provided as buttons that can be operated by a user, and may be provided as separate button units.
한편, 본 발명에 따른 체중부하 바이오피드백 장치는 도 8에 도시된 바와 같이, 다수 개로 구비되어, 각각의 통신부(8)를 통해 하나의 외부서버(11)와 다중연결 될 수 있다. 상기 외부서버(11)는 다중연결 된 다수 개의 체중부하 바이오피드백 장치 중 어느 하나의 제어부(1)에 명령을 전달하여 사용자의 활동을 유도할 수 있다. On the other hand, as shown in FIG. 8, the weight-bearing biofeedback device according to the present invention is provided in multiple pieces, and may be multiple-connected to one external server 11 through each communication unit 8. The external server 11 may induce a user's activity by transmitting a command to any one of the multiple weight-connected biofeedback devices 1.
이때, 각각의 통신부(8)와 외부서버(11) 간의 다중연결은, 개별의 통신부(8)와 외부서버(11) 사이 각각 모두 연결되어 체중부하 바이오피드백 장치의 개수만큼 다중연결될 수 있다.At this time, multiple connections between each communication unit 8 and the external server 11 are connected to each of the individual communication units 8 and the external server 11, so that they can be multiplexed by the number of weight-bearing biofeedback devices.
또한, 각각의 통신부(8)와 외부서버(11) 간의 다중연결은, 호스트로 작동되는 하나의 체중부하 바이오피드백 장치와 클라이언트로 작동되는 나머지 다수 개의 체중부하 바이오피드백 장치로 구성되어, 상기 호스트만 상기 외부서버(11)와 연결되고 상기 클라이언트는 상기 호스트와 연결되어 다중연결을 보다 신속하게 수행할 수 있다.In addition, multiple connections between each communication unit 8 and the external server 11 is composed of one weight-loading biofeedback device operated as a host and a plurality of other weight-loading biofeedback devices operated as a client, only the host. It is connected to the external server 11 and the client is connected to the host to perform multiple connections more quickly.
이러한 다중연결을 이용한 본 발명에 따른 체중부하 바이오피드백 장치의 유산소운동모드는 후에 상세히 서술하기로 한다.The aerobic exercise mode of the weight-loading biofeedback device according to the present invention using such multiple connection will be described in detail later.
이하에서는, 본 발명에 따른 체중부하 바이오피드백 장치가 체중측정모드, 정적균형훈련모드, 균형평가모드 및 유산소운동모드를 수행하는 제어부(1)에 대해 상세히 서술하고자 한다.Hereinafter, the control unit 1 in which the weight-bearing biofeedback device according to the present invention performs a weight measurement mode, a static balance training mode, a balance evaluation mode, and an aerobic exercise mode will be described in detail.
먼저, 도 9에 도시된 바와 같이, 상기 체중측정모드는 사용자의 모드 입력이 없을 때 자동으로 수행되며, 상기 체중측정모드에서 상기 제어부(1)는 상기 4개의 로드셀(4)에서 측정한 각각의 체중부하를 합산한 값을 상기 디스플레이(9)에 출력시키도록 구성된다. 즉, 사용자의 모드 입력이 있으면 상기 제어부(1)는 입력된 모드를 수행하는 것이다.First, as shown in FIG. 9, the weight measurement mode is automatically performed when there is no user's mode input, and in the weight measurement mode, the control unit 1 measures each of the four load cells 4 It is configured to output the sum of the weight load on the display (9). That is, if there is a user's mode input, the control unit 1 performs the input mode.
또한, 상기 제어부(1)는 이전에 측정했던 체중부하와의 비교를 위한 체중로그 데이터를 생성하여, 상기 외부서버(11)에 전송할 수 있다.In addition, the control unit 1 may generate weight log data for comparison with the previously measured weight load, and transmit it to the external server 11.
다음으로, 도 10에 도시된 바와 같이, 상기 정적균형훈련모드가 입력되면, 상기 제어부(1)는, 상기 4개의 로드셀(4)에서 측정한 각각의 체중부하의 편위값을 입력받는다. 이후, 상기 제어부(1)는 입력된 편위값의 크기에 따라 상기 로드셀(4)에서 사용자의 체중심점 위치를 파악한다. 그러면, 상기 체중심점이 위치된 사분면과 동일한 사분면에 위치한 상기 엘이디바(10)의 상기 다수 개의 칸을 선택적으로 점등하여, 사용자의 균형훈련에 대한 실시간 피드백을 제공하도록 구성된다. 구체적으로, 상기 제어부(1)는 사분면에 각각 위치한 상기 로드셀(4)에서 측정한 체중부하의 편위값의 크기(정중앙으로부터 얼마나 떨어져 있는지)를 등급화할 수 있는 효과가 있다.Next, as shown in FIG. 10, when the static balance training mode is input, the control unit 1 receives the deviation value of each weight load measured by the four load cells 4. Thereafter, the control unit 1 grasps the location of the user's weight center in the load cell 4 according to the size of the input deviation value. Then, it is configured to selectively turn on the plurality of cells of the LED bar 10 located in the same quadrant where the weight center is located to provide real-time feedback for the user's balance training. Specifically, the control unit 1 has an effect of classifying the magnitude (how far from the center) of the deviation value of the weight load measured by the load cell 4 located in each quadrant.
또한, 상기 제어부(1)는 이전에 측정했던 정적균형훈련모드와의 비교를 위한 정적균형 로그 데이터를 생성하여, 상기 외부서버(11)에 전송할 수 있다.In addition, the control unit 1 may generate static balance log data for comparison with the static balance training mode previously measured and transmit it to the external server 11.
다음으로, 도 11에 도시된 바와 같이, 상기 균형평가모드가 입력되면, 상기 제어부(1)는, 우선, 제1시간 동안 상기 4개의 로드셀(4)에서 측정한 각각의 체중부하의 편위값을 입력받아, 상기 편위값의 크기에 따라 사용자의 체중심점을 파악하고, 상기 체중심점이 위치된 사분면과 동일한 사분면에 위치한 상기 엘이디바의 상기 다수 개의 칸을 선택적으로 점등하는 준비동작을 수행한다. 또한, 상기 준비동작 이후 시점을 영점기준으로 적용하여, 이후 제2시간 동안 사용자의 움직임에 따라 변화하는 상기 4개의 로드셀(4)로부터 파악되는 체중심점 위치를 트래킹하여, 상기 제2시간 동안 체중심점의 변화량을 상기 디스플레이(9)에 출력하고, 상기 제2시간 동안 체중심점의 평균위치를 계산하여 사용자의 좌우편향을 상기 엘이디바(10)에 출력시켜 사용자의 균형평가를 수행하도록 구성된다. 즉, 상기 균형평가모드는 준비동작으로써 상기 정적균형훈련모드가 상기 제1시간 동안 이루어지고, 이후 영점조정 후 상기 제2시간 동안 상기 엘이디바(10)의 점등 없이 균형평가를 하여 그 결과를 마지막에 출력하는 것이다.Next, as shown in Figure 11, when the balance evaluation mode is input, the control unit 1, first, for the first time, the weight value of the deviation measured by each of the four load cells (4) Upon receiving the input, a user's weight center is grasped according to the size of the deviation value, and a preparation operation for selectively lighting the plurality of cells of the LED bar located in the same quadrant as the weight center is performed. In addition, by applying the time point after the preparation operation as a zero point reference, after tracking the position of the body weight point grasped from the four load cells 4 that change according to the user's movement for the second time, the body weight point for the second time It is configured to output the amount of change to the display (9), calculate the average position of the weight center during the second time, and output the left and right bias of the user to the LED (10) to perform the user's balance evaluation. That is, in the balance evaluation mode, the static balance training mode is performed for the first time as a preparation operation, and then the balance is evaluated without the lighting of the LED 10 for the second time after the zero point adjustment, and the result is finalized. Is to output to
구체적으로, 상기 균형평가모드에서는, 준비동작으로써 상기 제어부(1)가 상기 로드셀(4)에 올라선 사용자의 체중부하를 5초 동안 측정한다. 이때 상술한 상기 정적균형훈련모드와 같이, 상기 제어부(1)는, 상기 4개의 로드셀(4)에서 측정한 각각의 체중부하의 편위값에 따라 사용자의 체중심점 위치를 파악하고, 상기 체중심점이 위치된 사분면과 동일한 사분면에 위치한 상기 엘이디바(10)의 상기 다수 개의 칸을 선택적으로 점등하여, 실질적인 균형평가 전 사용자의 균형유지상태에 대한 피드백을 제공하는 것이다.Specifically, in the balance evaluation mode, as a preparatory operation, the control unit 1 measures the user's weight load on the load cell 4 for 5 seconds. At this time, as in the static balance training mode described above, the control unit 1 grasps the position of the user's weight center according to the deviation value of each weight load measured by the four load cells 4, and the weight score is The plurality of cells of the LED bar 10 positioned in the same quadrant as the positioned quadrant are selectively lit to provide feedback on the balance maintenance state of the user before the actual balance evaluation.
이후, 상기 제어부(1)는 사용자의 준비동작이 완료된 시점을 영점기준으로 적용하도록 상기 로드셀(4)을 제어한 다음에, 사용자의 체중부하이동의 편위를 측정할 수 있도록 하여, 사용자의 움직임 트래킹의 정확성을 보다 향상시킬 수 있다. 이는, 상술한 상기 영점조정부(7)의 기능과 구별됨은 물론이다.Thereafter, the control unit 1 controls the load cell 4 to apply the time point when the user's preparation operation is completed as a zero point reference, and then allows the user to measure the displacement of the user's weight load movement, thereby tracking the user's movement Can improve the accuracy of. Needless to say, this is distinguished from the above-described function of the zero adjustment unit 7.
그 다음, 상기 제어부(1)는 실질적인 균형평가를 위해, 상기 제2시간, 바람직하게는 10초 동안 사용자의 체중심점 변화를 트래킹한다. 이때, 사용자가 본인의 체중심점 위치를 파악할 수 없도록 상기 엘이디바(10)를 점등하지 않는 것이 중요하다. 상기 제어부(1)는 트래킹한 결과를 명시적으로 나타내기 위해, 체중심점의 변화량을 상기 디스플레이(9)에 출력하고, 체중심점의 평균을 계산하여 사용자의 편향이 좌우 중 어느 곳에 더 기울어져 있는지를 상기 엘이디바(10)를 통해 출력하는 것이다.Then, the control unit 1 tracks the change in the user's weight point for the second time, preferably 10 seconds, for a substantial balance evaluation. At this time, it is important not to light the LED bar 10 so that the user can not grasp the location of his or her weight center. The controller 1 outputs a change in the weight center to the display 9 to express the tracked result explicitly, calculates the average of the weight center, and calculates the average of the weight center, where the user's bias is further inclined. Is to output through the LED bar (10).
또한, 상기 제어부(1)는 이전에 측정했던 균형평가와의 비교를 위한 균형평가 로그 데이터를 생성하여, 상기 외부서버(11)에 전송할 수 있다.In addition, the control unit 1 may generate balance evaluation log data for comparison with the previously measured balance evaluation, and transmit it to the external server 11.
다음으로, 도 12에 도시된 바와 같이, 상기 유산소운동모드가 입력되면, 상기 제어부(1)는, 상기 통신부(8)를 통해 상기 외부서버(11)로부터 식별번호를 제공받아, 상기 외부서버(11)와 다수 개로 구비되는 상기 체중부하 바이오피드백 장치 간의 다중연결을 수행한다. 상기 다중연결이 완료되면, 상기 다수 개의 체중부하 바이오피드백 장치 중, 상기 외부서버(11)에서 전달되는 식별번호에 대응되는 상기 체중부하 바이오피드백 장치가 활성화된다. 이에 따라, 상기 활성화된 체중부하 바이오피드백 장치에 있어서, 상기 제어부(1)가 상기 엘이디바(10)를 점등하고, 상기 로드셀(4)이 체중부하를 감지하면 상기 제어부(1)가 상기 점등된 엘이디바(10)를 소등한다. 이를 통해, 상기 유산소운동모드에서는 사용자에게 상기 엘이디바(10)의 추적을 통한 유산소운동 프로그램을 제공할 수 있고, 사용자가 상기 유산소운동모드에서 점등된 상기 로드셀(4)로 이동하여 상기 로드셀(4)이 소등되도록 한 반응시간과 정확도 데이터를 점수화하여 상기 외부서버(11)로 전송할 수 있다.Next, as shown in FIG. 12, when the aerobic exercise mode is input, the control unit 1 receives an identification number from the external server 11 through the communication unit 8, and the external server ( 11) and performs multiple connections between the weight-bearing biofeedback device provided with a plurality of dogs. When the multiple connection is completed, of the plurality of weight-bearing biofeedback devices, the weight-loading biofeedback device corresponding to the identification number transmitted from the external server 11 is activated. Accordingly, in the activated weight-bearing biofeedback device, when the control unit 1 lights up the LED 10 and the load cell 4 detects a weight load, the control unit 1 lights up. Turn off the LED bar (10). Through this, in the aerobic exercise mode, a user can provide an aerobic exercise program through tracking of the LED bar 10, and the user moves to the lighted load cell 4 in the aerobic exercise mode to move the load cell 4 ) Can be transmitted to the external server 11 by scoring the reaction time and accuracy data so that it is turned off.
여기서, 상기 외부서버(11)는 식별번호 순대로 상기 체중부하 바이오피드백 장치를 개별적으로 호출할 수 있고, 또는 상기 정적균형훈련모드와 상기 균형평가모드에서 측정한 체중부하의 편위로 인해 상대적으로 약한 근육을 단련하기 위해 해당 위치의 상기 체중부하 바이오피드백 장치를 집중적으로 호출하는 방식으로 운동프로그램을 수정할 수 있다.Here, the external server 11 may individually call the weight-bearing biofeedback devices in the order of identification number, or is relatively weak due to the deviation of the weight load measured in the static balance training mode and the balance evaluation mode. In order to train the muscles, the exercise program can be modified by intensively calling the weight-bearing biofeedback device at the corresponding location.
또한, 상기 유산소운동모드에서는, 상기 체중부하 바이오피드백 장치를 바닥이 아닌 벽에 위치시켜, 상지의 운동을 도모할 수도 있다.In addition, in the aerobic exercise mode, the weight-bearing biofeedback device may be placed on a wall rather than on the floor to promote upper limb movement.
또한, 상기 유산소운동모드는 하나의 체중부하 바이오피드백 장치를 서버모드로 작동시키고 나머지 다수 개의 체중부하 바이오피드백 장치를 클라이언트모드로 작동시켜, 외부서버(11)와 다수 개로 구비되는 상기 체중부하 바이오피드백 장치 간의 다중연결을 보다 용이하게 수행할 수 있다. 도 13a는 서버모드의 작동알고리즘을, 도 13b는 클라이언트모드의 작동알고리즘을 도시하고 있다.In addition, the aerobic exercise mode operates one weight-loading biofeedback device in a server mode and the remaining plurality of weight-loading biofeedback devices in a client mode, thereby providing the externally loaded server 11 and a plurality of weight-loading biofeedback devices. Multiple connections between devices can be performed more easily. Fig. 13A shows the operation algorithm in the server mode, and Fig. 13B shows the operation algorithm in the client mode.
구체적으로, 상기 서버모드는 도 13a에 도시된 바와 같이, 서버모드로 설정된 체중부하 바이오피드백 장치가 외부서버의 기능을 대체하여 다수 개의 클라이언트와 다중연결되고, 각각의 클라이언트에 개별 식별번호를 부여하고 랜덤으로 호출하여 유산소운동모드를 수행한다. 반면에, 상기 클라이언트모드는 도 13b에 도시된 바와 같이, 기존의 유산소운동모드와 유사하게 서버모드로 설정된 체중부하 바이오피드백 장치로부터 개별 식별번호를 부여받고 호출 시 엘이디바를 점등하는 방식으로 유산소운동모드를 수행한다. 다만, 상기 서버모드와 상기 클라이언트모드로 각각 설정된 체중부하 바이오피드백 장치는 기존의 유산소운동모드와 다르게, 클라이언트모드에서, 엘이디바 소등 시 서버모드로 설정된 체중부하 바이오피드백 장치로 소등이벤트를 전송하고, 서버모드에서, 소등이벤트를 감지하면 다시 랜덤 호출하여 엘이디바를 점등하도록 구성되는 알고리즘이 포함될 수 있다.Specifically, in the server mode, as shown in FIG. 13A, the weight-load biofeedback device set to the server mode is multi-connected with a plurality of clients by replacing the functions of the external server, and assigns individual identification numbers to each client. Perform aerobic exercise mode by calling randomly. On the other hand, the client mode, as shown in Figure 13b, similar to the conventional aerobic exercise mode, aerobic exercise mode in a manner that turns on the LED bar upon receiving an individual identification number from the weight-loading biofeedback device set to the server mode. To perform. However, unlike the conventional aerobic exercise mode, the weight-load biofeedback device set to the server mode and the client mode transmits a light-off event to the weight-load biofeedback device set to the server mode when the LED is turned off, in the client mode. In the server mode, when an extinction event is detected, an algorithm configured to light up the LED bar by randomly calling again may be included.
상술한 본 발명의 기술적 구성은 본 발명이 속하는 기술분야의 당업자가 본 발명의 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다.It will be understood that the above-described technical configuration of the present invention can be implemented in other specific forms by those skilled in the art to which the present invention pertains without changing the technical spirit or essential features of the present invention.
그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적인 것이 아닌 것으로서 이해되어야 하고, 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타나며, 특허청구범위의 의미 및 범위 그리고 그 등가 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims It should be construed that any altered or modified form derived from the equivalent concept is included in the scope of the present invention.
[부호의 설명][Description of codes]
1 : 제어부1: Control
2 : 배터리부2: Battery part
3 : 신호증폭부3: Signal amplification part
4 : 로드셀4: Load cell
5 : 전원부5: power supply
6 : 모드입력부6: Mode input unit
7 : 영점조정부7: Zero point adjustment unit
8 : 통신부8: Communication department
9 : 디스플레이9: display
10 : 엘이디바10: LED Bar
11 : 외부서버11: External server
12 : 하우징12: housing

Claims (5)

  1. 중심을 기준으로 각각 90°를 이루는 사분면으로 구분되는 하우징;A housing divided into quadrants each forming 90 ° based on a center;
    상기 사분면에 각각 1개씩 설치되어, 상기 각각의 사분면에서의 체중부하를 측정하는 4개의 로드셀;Four load cells installed in each of the quadrants to measure the weight load in each of the quadrants;
    상기 4개의 로드셀이 측정한 체중부하를 합산하여 숫자로 표시하는 디스플레이;A display in which the weight loads measured by the four load cells are summed and displayed as numbers;
    다수 개의 칸으로 구획되며, 상기 하우징의 가장자리 외측을 따라 상기 사분면에 각각 설치되는 4개의 엘이디바;Four LED bars which are divided into a plurality of compartments and are respectively installed in the quadrant along the outer edge of the housing;
    상기 로드셀로부터 체중부하를 입력받아 상기 디스플레이 및 상기 엘이디바를 제어하는 제어부; 및A control unit that receives the weight load from the load cell and controls the display and the LED bar; And
    외부서버와 상기 제어부 간의 명령을 송수신하는 통신부;를 포함하고,Includes; a communication unit for transmitting and receiving a command between the external server and the control unit,
    상기 제어부는,The control unit,
    상기 엘이디바가 상기 엘이디바와 동일한 사분면에 위치한 상기 로드셀이 측정한 체중부하를 출력하도록 제어하고,The LED bar is controlled to output the weight load measured by the load cell located in the same quadrant as the LED bar,
    사용자의 입력에 따라 체중측정모드, 정적균형훈련모드, 균형평가모드 및 유산소운동모드 중 어느 하나를 수행하는 것을 특징으로 하는 체중부하 바이오피드백 장치.Weight loading biofeedback device, characterized in that to perform any one of the weight measurement mode, static balance training mode, balance evaluation mode and aerobic exercise mode according to the user's input.
  2. 제1항에 있어서,According to claim 1,
    사용자의 모드 입력이 없으면, 상기 제어부는,If there is no user's mode input, the control unit,
    상기 4개의 로드셀에서 측정한 각각의 체중부하를 합산한 값을 상기 디스플레이에 출력시키는 것을 특징으로 하는 체중부하 바이오피드백 장치.Weight load biofeedback device, characterized in that the output of the sum of each weight load measured in the four load cells on the display.
  3. 제1항에 있어서,According to claim 1,
    상기 정적균형훈련모드가 입력되면, 상기 제어부는, When the static balance training mode is input, the control unit,
    상기 4개의 로드셀에서 측정한 각각의 체중부하의 편위값을 입력받고,The deviation value of each weight load measured by the four load cells is input,
    상기 편위값의 크기에 따라 사용자의 체중심점을 파악하고,According to the size of the deviation value, grasp the user's weight point,
    상기 체중심점이 위치된 사분면과 동일한 사분면에 위치한 상기 엘이디바의 상기 다수 개의 칸을 선택적으로 점등하여 사용자의 균형훈련에 대한 실시간 피드백을 제공하는 것을 특징으로 하는 체중부하 바이오피드백 장치.Body weight biofeedback device, characterized in that to provide real-time feedback for the user's balance training by selectively lighting the plurality of cells of the LED bar located in the same quadrant as the weight center is located.
  4. 제3항에 있어서,According to claim 3,
    상기 균형평가모드가 입력되면, 상기 제어부는, When the balance evaluation mode is input, the control unit,
    제1시간 동안 상기 4개의 로드셀에서 측정한 각각의 체중부하의 편위값을 입력받아, 상기 편위값의 크기에 따라 사용자의 체중심점을 파악하고, 상기 체중심점이 위치된 사분면과 동일한 사분면에 위치한 상기 엘이디바의 상기 다수 개의 칸을 선택적으로 점등하는 준비동작을 수행하고,During the first hour, the deviation value of each weight load measured by the four load cells is input, the user's weight center is grasped according to the size of the deviation value, and the position located in the same quadrant as the weight center is located. Prepares a selective operation of selectively lighting the plurality of cells of the LED bar,
    상기 준비동작 이후 시점을 영점기준으로 적용하여,By applying the time point as the zero point standard after the preparation operation,
    제2시간 동안 사용자의 움직임에 따라 변화하는 상기 4개의 로드셀로부터 파악되는 체중심점 위치를 트래킹하여, 상기 제2시간 동안 체중심점의 변화량을 상기 디스플레이에 출력하고, 상기 제2시간 동안 체중심점의 평균위치를 계산하여 사용자의 좌우편향을 상기 엘이디바에 출력시켜 사용자의 균형평가를 수행하는 것을 특징으로 하는 체중부하 바이오피드백 장치.Tracking the position of the body weight point grasped from the four load cells that change according to the user's movement during the second time, outputs a change in the body weight point during the second time to the display, and averages the body weight point during the second time Weight load biofeedback device, characterized in that to perform a balance evaluation of the user by calculating the position and outputting the user's left and right bias to the LED bar.
  5. 제1항에 있어서,According to claim 1,
    상기 유산소운동모드가 입력되면, 상기 제어부는, When the aerobic exercise mode is input, the control unit,
    상기 통신부를 통해 상기 외부서버와 다수 개로 구비되는 상기 체중부하 바이오피드백 장치 간의 다중연결을 수행하여, 상기 외부서버로부터 각각의 체중부하 바이오피드백 장치에 대한 식별번호를 제공받고,By performing multiple connections between the external server and the weight-bearing biofeedback device provided in multiple pieces through the communication unit, an identification number for each weight-loading biofeedback device is provided from the external server,
    상기 다수 개의 체중부하 바이오피드백 장치 중, 상기 외부서버에서 호출되는 식별번호에 대응되는 상기 체중부하 바이오피드백 장치가 활성화되어,Of the plurality of weight-load biofeedback devices, the weight-load biofeedback device corresponding to the identification number called by the external server is activated,
    상기 활성화된 체중부하 바이오피드백 장치에 있어서, 상기 제어부가 상기 엘이디바를 점등하고, 상기 로드셀이 체중부하를 감지하면 상기 제어부가 상기 점등된 엘이디바를 소등하여, 사용자에게 상기 엘이디바의 추적을 통한 유산소운동 프로그램을 제공하는 것을 특징으로 하는 체중부하 바이오피드백 장치.In the activated weight-bearing biofeedback device, when the control unit turns on the LED bar and the load cell detects a weight load, the control unit turns off the illuminated LED bar, and aerobic exercise through tracking of the LED bar to the user Weight-bearing biofeedback device characterized in that it provides a program.
PCT/KR2019/011501 2018-10-01 2019-09-05 Bodyweight load biofeedback device WO2020071648A1 (en)

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KR1020180116903A KR102189401B1 (en) 2018-10-01 2018-10-01 Weight Bearing Bio-Feedback Apparatus
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US20040163855A1 (en) * 2002-12-02 2004-08-26 Conair Corporation Balance control system for weight scales
KR20080028577A (en) * 2006-09-27 2008-04-01 김대성 System for consulting exercise and method the same
KR20170002742A (en) * 2015-06-29 2017-01-09 한국표준과학연구원 System and apparatus for smart shoes using foot presure, manufacturing method thereof and method for controlling the same
KR20170038986A (en) * 2015-09-30 2017-04-10 몬트롤 주식회사 The apparatus of force plate with 8 channel and high speed camera
KR101786846B1 (en) * 2017-04-07 2017-11-15 (주)아이투에이시스템즈 Method of estimating balance of both feet using force sensor and foothold system using it

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KR200215314Y1 (en) 2000-09-08 2001-03-02 주식회사휴먼테크 Apparatus for electronically diagnosing posture balance

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Publication number Priority date Publication date Assignee Title
US20040163855A1 (en) * 2002-12-02 2004-08-26 Conair Corporation Balance control system for weight scales
KR20080028577A (en) * 2006-09-27 2008-04-01 김대성 System for consulting exercise and method the same
KR20170002742A (en) * 2015-06-29 2017-01-09 한국표준과학연구원 System and apparatus for smart shoes using foot presure, manufacturing method thereof and method for controlling the same
KR20170038986A (en) * 2015-09-30 2017-04-10 몬트롤 주식회사 The apparatus of force plate with 8 channel and high speed camera
KR101786846B1 (en) * 2017-04-07 2017-11-15 (주)아이투에이시스템즈 Method of estimating balance of both feet using force sensor and foothold system using it

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