KR20120085962A - Walking trainning system using force sensing resistor sensor and walking pattern analysis method thereof - Google Patents

Walking trainning system using force sensing resistor sensor and walking pattern analysis method thereof Download PDF

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Publication number
KR20120085962A
KR20120085962A KR1020110007103A KR20110007103A KR20120085962A KR 20120085962 A KR20120085962 A KR 20120085962A KR 1020110007103 A KR1020110007103 A KR 1020110007103A KR 20110007103 A KR20110007103 A KR 20110007103A KR 20120085962 A KR20120085962 A KR 20120085962A
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KR
South Korea
Prior art keywords
walking
sensor
fsr
speed
treadmill
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KR1020110007103A
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Korean (ko)
Inventor
정호춘
이상세
Original Assignee
주식회사 싸이버메딕
전북대학교산학협력단
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Priority to KR1020110007103A priority Critical patent/KR20120085962A/en
Publication of KR20120085962A publication Critical patent/KR20120085962A/en

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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/02Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
    • A63B22/0235Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills driven by a motor
    • A63B22/0242Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills driven by a motor with speed variation
    • A63B22/025Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills driven by a motor with speed variation electrically, e.g. D.C. motors with variable speed control
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0087Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0087Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
    • A63B2024/0093Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load the load of the exercise apparatus being controlled by performance parameters, e.g. distance or speed
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B2071/0647Visualisation of executed movements
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/20Distances or displacements
    • A63B2220/22Stride length
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/30Speed
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/50Force related parameters
    • A63B2220/51Force
    • A63B2220/52Weight, e.g. weight distribution

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Rehabilitation Tools (AREA)

Abstract

PURPOSE: An intelligent walking training system and a walking pattern analysis method thereof are provided to enable the elderly to walk correctly by providing walking information. CONSTITUTION: An intelligent walking training system comprises a panel type personal computer which has a control program for the intelligent walking training system; a force sensing resistor sensor which can be inserted into an insole; a treadmill; a control module for controlling treadmill speed and giving feedback for the treadmill speed, and a communication module for wirelessly transmitting and receiving the pressure measurement results and the force sensitive resistor sensor data. The force sensitive resistor sensor is a polymer film which generates resistance.

Description

WALKING TRAINNING SYSTEM USING FORCE SENSING RESISTOR SENSOR AND WALKING PATTERN ANALYSIS METHOD THEREOF}

The present invention relates to an intelligent walking training system and a walking pattern analysis method applying a weight resistance sensor, and more specifically, to analyze the walking speed, walking distance, foot pressure distribution by analyzing walking information coming from the left and right FSR sensors. Display information on the screen so that the elderly can feed their information through the screen, and according to the state of the walking pattern, the elderly can recognize other problems with the normal people of walking with sound and induce accurate walking. The present invention relates to an intelligent walking training system and a walking pattern analysis method using a weight-resisting resistance sensor capable of visual and auditory biofeedback.

In general, walking upright and walking with two legs is a highly developed exercise that only humans can do, and it is a basic motion and function to maintain life as a human.

Therefore, if the upright walking is not only physically limited by movement but also social activity, and even mental problems may occur.

Due to the rapidly increasing industrial disasters in the recent industrialization process, it is required to allow the patient to walk in a correct posture during the rehabilitation process of a walking disabled person, arthritis patient, obesity patient and the elderly.

Therefore, from the early stages of rehabilitation, it should be helped and trained to adjust the pace according to the degree of the patient's disability.

Therefore, patients with walking disorders in medical institutions or rehabilitation facilities are unable to walk on their own, so to assist or train their rehabilitation gait, one or two nurses, physical therapists or caregivers are required, but recovery is delayed due to lack of manpower. Since the onset of this disease, many people with pedestrians have lost the opportunity for active rehabilitation with the remarkable increase in treatment costs after this period.

Therefore, the rehabilitation of the walking disabled has great interest in the medical field, but it is necessary for the walking disabled to support the weight of the upper limbs such as walking sticks, crutches, and walking aids. Since the muscles of the whole body are abnormally contracted, there are problems such as difficulty in carrying out the treatment of inducing a normal gait pattern and inconsistency with basic motor functions such as linear gait.

Therefore, there is a need for a device capable of training a walking pattern that is most similar to the walking pattern used by a person with a disability in real life.

The present invention has been made in order to solve the problems described above, by analyzing the walking information coming from the left and right FSR sensor to analyze the walking speed, walking distance, pressure distribution of the foot to display the information on the screen by the elderly to display the screen It is possible to give feedback of its own information through the system, and it is possible to visually and auditory biofeedback so that the elderly can recognize the different problems with the normal people of walking according to the state of walking pattern and induce accurate walking. To provide.

An intelligent walking training system to which the weight sensing resistance sensor according to the first embodiment of the present invention is applied includes: a panel-type personal computer in which a program for overall control of the system is embedded; A Force Sensing Resistor (FSR) sensor that can be placed in the insole of the shoe so that there is no inconvenience when walking; Treadmill; A control module for feeding back and controlling the speed of the treadmill; Characterized in that it consists of a communication module for wirelessly transmitting and receiving the pressure measurement and data of the FSR sensor.

Herein, the FSR sensor is a polymer film in which a resistance decreases when the force is increased on the sensor surface, and its resistance value is inversely proportional to the magnitude of the force applied to the active area. It features.

In addition, the FSR sensor is manufactured in the form of a matrix of 10 × 30, is manufactured in the shape of a foot to change the voltage of the foot pressure through an inverse amplification circuit, and draws a tab to the side of the foot. It is characterized in that it is made of a structure that can be measured.

In addition, an intelligent walking pattern analysis method using the weight sensing resistance sensor of the present invention comprises the steps of: analyzing data of 300 left and right inputs to a force sensing resistance (FSR) sensor; Analyzing the pressure distribution of the left and right foot pressure and walking speed, distance, left and right symmetry characterized in that the step consisting of providing information to the user visually.

According to the intelligent pedestrian training system applying the weight-resistance resistance sensor of the present invention, by analyzing the walking information coming from the left and right FSR sensor, analyze the walking speed, walking distance, pressure distribution of the foot and display the information on the screen to display the information on the screen. It is possible to give feedback of its own information through the system, and it is possible to visually and auditory biofeedback so that the elderly can recognize the different problems with the normal people of walking according to the state of walking pattern and induce accurate walking. As to provide, if the walking problem of the patient through the gait pattern analysis to adjust the speed of the treadmill, has the effect of inducing normal walking.

1 is an overall configuration diagram of an intelligent walking training system using the FSR sensor of the present invention.
Figure 2a is a characteristic curve of the FSR sensor of the present invention.
Figure 2b is a measuring method of the FSR sensor of the present invention.
Figure 3 is a detailed manufacturing diagram showing the FSR sensor of the present invention.
4 is a block diagram showing an FSR sensor of the present invention.
5 is a block diagram for measuring the FSR sensor of the present invention.
6 is a control program analyzing the walking pattern by the FSR sensor of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

[Example]

1 is an overall configuration diagram of an intelligent walking training system using the FSR sensor of the present invention, Figure 2a is a characteristic curve of the FSR sensor of the present invention, Figure 2b is a measurement method of the FSR sensor of the present invention, Figure 3 Fig. 4 is a block diagram showing the FSR sensor of the present invention, Fig. 5 is a block diagram for measuring the FSR sensor of the present invention, and Fig. 6 is an FSR of the present invention. It is a control program that analyzes walking pattern by sensor.

As shown in Figure 1, the intelligent gait training system using the weight-sensitive resistance sensor of the present invention, a panel-type personal computer (hereinafter referred to as a PC) with a program for the overall control of the system, and the inconvenience of walking Force Sensing Resistor (FSR) sensor that can be placed in the insole of the shoe, treadmill, a control module for feeding back and controlling the speed of the treadmill, and pressure measurement and data of the FSR sensor. It consists of a communication module for transmitting and receiving.

The operation of the system of the present invention selects a mode suitable for the speed of the elderly and starts walking, measuring the pressure of the left and right feet through the FSR sensor and sending and receiving data to the PC, the program of the PC to analyze the walking pattern when walking To analyze the walking information coming from the left and right FSR sensors, analyze the walking speed, walking distance, and pressure distribution of the foot, and display the information on the screen so that the elderly can feedback their information through the screen. According to the condition, it provides a system capable of visual and auditory biofeedback so that elderly people can recognize different problems with the normal person of walking and induce accurate walking.

At this time, if the patient's walking problem occurs through the walking pattern analysis, the speed of the treadmill is adjusted to induce normal walking.

The operation and control of the system is designed to be controlled at the PC.

After the walking training is completed, the walking pattern is analyzed to provide the user with the pressure distribution status of the user's foot, walking speed, walking distance, walking distance, stride, and left and right walking balance information. Can tell the program.

The Force Sensing Resistor (FSR) sensor is a polymer film device that produces a decrease in resistance when increasing the force on the surface of the sensor, and has little electrical hysteresis and low cost compared to conductive rubber. .

The FSR sensor has its own resistance value, which is inversely proportional to the amount of force exerted on the active area. 2A and 2B are graphs showing the relationship between the applied force and the resistance, that is, the characteristic curve and measurement method of the FSR sensor, and the resistance value decreases as the force increases. This decreasing curve is linear.

The measurement of the FSR sensor may change the voltage of the foot pressure through the inverse amplification circuit of 10 x 30 FSR sensors. Wherein R F represents one of the sensors of the 10 × 30 of FSR, applies a reference voltage to one end of the R F and by the change of R F value that appears in accordance with the change of the jokap change the output voltage to be applied to the non-inverting amplifier input terminal Is designed.

Here, non-inverting is used to amplify the current because the current is weak in the process of transmitting the signal output from the FSR sensor to the A / D converter through the analog mux (Analog Mux).

As shown in Figures 3 to 6, the fabrication of the FSR sensor to be developed in the present invention is manufactured in the shape of the foot with 10 × 30 FSR sensors, can be measured by deriving a tab (Tab) to the side of the foot It is made of a structure.

The module for measuring the FSR sensor is manufactured in a structure capable of measuring in a matrix form of 10 × 30, and the microcontroller unit (MCU) is used to convert the voltage of each FSR sensor into a digital value. Measured using built-in 8bit A / D conversion. Sampling is measured at 25Hz. At this time, the transmission speed for transmitting data of 300 FSR sensors to communicate data wirelessly is sufficient to 115,200bps.

In order to measure the FSR sensor, as shown in FIG. 5, reference voltages of 16 FSR sensors are applied, and 8 voltages are output through a non-inverting amplifier to perform 8-bit A / D conversion. Send and receive data through the Bluetooth communication module.

As described above, in the analysis process of the walking pattern by the FSR sensor of the present invention, first, the 300 left and right data inputted to the FSR sensor are analyzed, and the pressure distribution and walking speed, distance, left and right symmetry of the left and right foot pressures are analyzed. (Symmetry) is analyzed to provide information to the user visually.

According to the gait pattern analysis system by the FSR sensor of the present invention, when the gait pattern is different from the normal person of the gait according to the state of the gait pattern, the visual and auditory biofeedback can recognize the problem by sound and induce accurate gait ( biofeedback system.

When the speed of the treadmill is set according to age, the walking training starts according to the set walking speed. At this time, if the patient's walking problem occurs through the walking pattern analysis, the treadmill speed is adjusted to induce normal walking. If there is a risk of falling, the treadmill can be forcibly stopped to increase stability during walking training on the treadmill.

The motor control system according to this walking pattern enables the speed input from the tachometer to sense the speed of the motor through the A / D converter.In order to drive the motor, the speed of the AC motor is precisely controlled using the AC inverter. The speed of the motor can be controlled according to the walking pattern by performing data communication with the walking pattern program at a speed of 38,400bps.

The treadmill is made to produce a speed of up to 20km / h, the speed step is controlled to 0.1km / h.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. And will be included in the described technical idea.

Claims (2)

A panel-type personal computer incorporating a program for overall control of the system;
A Force Sensing Resistor (FSR) sensor that can be placed in the insole of the shoe so that there is no inconvenience when walking;
Treadmill;
A control module for feeding back and controlling the speed of the treadmill;
A communication module for wirelessly transmitting and receiving pressure measurement and data of the FSR sensor;
The FSR sensor is a polymer film in which resistance decreases when increasing force on the sensor surface, and its resistance value is inversely proportional to the magnitude of the force applied to the active area;
The FSR sensor is manufactured in a matrix form of 10 × 30,
It is manufactured in the shape of the foot to change the voltage of the foot pressure through the inverse amplification circuit, and has a structure that can be measured by deriving the tab (Tab) next to the foot. Walking training system.
Analyzing 300 left and right data inputted to a Force Sensing Resistor (FSR) sensor;
Intelligent walking pattern analysis method using a weight-resistance resistance sensor, characterized in that the step consisting of providing information to the user visually by analyzing the pressure distribution of the left and right foot pressure, walking speed, distance, left and right symmetry.

















KR1020110007103A 2011-01-25 2011-01-25 Walking trainning system using force sensing resistor sensor and walking pattern analysis method thereof KR20120085962A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103623550A (en) * 2013-11-12 2014-03-12 深圳市好家庭实业有限公司 Control method of treadmill system, treadmill and portable intelligent terminal
KR101430823B1 (en) * 2012-10-23 2014-08-14 주식회사 싸이버메딕 Walking analysis treadmill of unweight control
KR20150000308A (en) * 2013-06-24 2015-01-02 현대중공업 주식회사 Method of test and evaluation for training effectiveness measurement of gait training system
KR20160094095A (en) * 2015-01-30 2016-08-09 현대중공업 주식회사 Gait analysis system for gait rehabilitation robot
CN110694237A (en) * 2019-09-25 2020-01-17 北京金史密斯科技有限公司 Running belt adjusting system, running machine and walking machine
WO2020130387A1 (en) * 2018-12-21 2020-06-25 솔티드 주식회사 Gait analysis method, computer-readable storage medium, and electronic device
KR20200078291A (en) * 2018-12-21 2020-07-01 솔티드 주식회사 Gait analysis method, computer readable storage medium and electronic device
KR20200079631A (en) 2018-12-26 2020-07-06 주식회사 유니휴먼텍 Insole for measuring pedestrian foot pressure information and Shoes using the same
KR20220163080A (en) * 2021-06-02 2022-12-09 서울대학교병원 Gait analysis method and gait analysis system thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101430823B1 (en) * 2012-10-23 2014-08-14 주식회사 싸이버메딕 Walking analysis treadmill of unweight control
KR20150000308A (en) * 2013-06-24 2015-01-02 현대중공업 주식회사 Method of test and evaluation for training effectiveness measurement of gait training system
CN103623550A (en) * 2013-11-12 2014-03-12 深圳市好家庭实业有限公司 Control method of treadmill system, treadmill and portable intelligent terminal
CN103623550B (en) * 2013-11-12 2015-12-30 深圳市好家庭实业有限公司 Treadmill system control method, treadmill and portable intelligent terminal
KR20160094095A (en) * 2015-01-30 2016-08-09 현대중공업 주식회사 Gait analysis system for gait rehabilitation robot
WO2020130387A1 (en) * 2018-12-21 2020-06-25 솔티드 주식회사 Gait analysis method, computer-readable storage medium, and electronic device
KR20200078291A (en) * 2018-12-21 2020-07-01 솔티드 주식회사 Gait analysis method, computer readable storage medium and electronic device
US20210259580A1 (en) * 2018-12-21 2021-08-26 Salted Co., Ltd. Gait analysis method, computer readable storage medium and electronic device
KR20200079631A (en) 2018-12-26 2020-07-06 주식회사 유니휴먼텍 Insole for measuring pedestrian foot pressure information and Shoes using the same
CN110694237A (en) * 2019-09-25 2020-01-17 北京金史密斯科技有限公司 Running belt adjusting system, running machine and walking machine
KR20220163080A (en) * 2021-06-02 2022-12-09 서울대학교병원 Gait analysis method and gait analysis system thereof

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