KR101947095B1 - System for posture calibration and method thereof - Google Patents

Abstract

The present disclosure provides a posture correction system capable of measuring various postures compared to the prior art. The posture correcting system according to the present invention can collectively measure the user's attitude and determine whether the user is in the normal state through the sensors installed on the neckband and the cushion.

Description

SYSTEM FOR POSTURE CALIBRATION AND METHOD THEREOF BACKGROUND OF THE INVENTION [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a posture correcting system and method, and more particularly, to a system and method for assisting a posture of a person's shoulder and shoulder in a comprehensive manner and correcting the posture to a correct posture.

Korean Patent Laid-Open Publication No. 10-2016-0006387 discloses a cushioning technique capable of correcting posture in real time. The cushion senses the air pressure of each part divided into quadrants and provides the display of the pressure difference between the parts so that the user can recognize the problem of the posture.

While the above technique may be perceived by the user when there is a problem with the posture in the sitting position or below the waist, the posture of the person can not be analyzed merely by the difference in pressure applied to the hip. The human vertebrae consist of 7 cervical spines, 12 thoracic spines, 5 lumbar spines, 5 spinal bones, and 4 tailbone, The number of thoracic and lumbar vertebrae is only 24. Because these 24 bones can move together, judging whether the sitting posture is correct or not by the pressure exerted on the chair is inevitably low.

Therefore, there is a need for a method to judge the posture in a comprehensive manner by sensing the posture of the waist (hip) and the shoulder (neck) together.

Korean Patent Publication No. 10-2016-0006387

The present disclosure seeks to provide a system and method that can provide more accurate posture determination and correct posture correction than prior art.

The solutions described herein are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

The posture correction system according to the present invention includes two acceleration sensors for sensing three axes orthogonal to each other in a three-dimensional space, two gyroscopes for sensing three axes perpendicular to each other in a three-dimensional space, Two geomagnetic sensors for sensing the three axes respectively, a right motor disposed at the right side of the user's neck when mounted on the user's neck, a left motor disposed at the left side of the user's neck when mounted on the user's neck, And a controller for controlling the wireless communication module to transmit the sensed values received from the two acceleration sensors, the two gyro sensors and the two geomagnetic sensors via the wireless communication module, A neckband including a neckband control section for outputting a signal for driving a motor or a left motor; An air pump motor for injecting or discharging air into or from the plurality of air tubes, a plurality of pressure sensors corresponding to the plurality of air tubes, an acceleration sensor for sensing three axes perpendicular to each other in a three- A gyro sensor for sensing three axes orthogonal to each other in a three-dimensional space, a geomagnetic sensor for sensing three axes orthogonal to each other in a three-dimensional space, a wireless communication module for wirelessly transmitting and receiving data, Wherein the control unit controls to transmit the sensed value received by one acceleration sensor, one gyro sensor and one geomagnetic sensor through the wireless communication module, and controls at least one or more And a cushion control section for outputting a signal for injecting or discharging air into the air tube ; And a camera module, a display module, a wireless communication module for transmitting and receiving data wirelessly, and a sensing value received from the three acceleration sensors, three gyro sensors, and three geomagnetic sensors, and a sensing value received by the plurality of pressure sensors, And a portable terminal control unit for outputting a control signal for driving at least one of the right motor, the left motor and the air pump motor when the difference is greater than or equal to a preset threshold value .

According to an embodiment of the present invention, the portable terminal can set a reference posture value using a camera module and a display module.

According to one embodiment of the present invention, the portable terminal control unit controls the sensing values received from the three acceleration sensors and the three gyro sensors and the sensing value received by the plurality of pressure sensors for a preset time period as a reference attitude value Can be set.

According to one embodiment of the present invention, the portable terminal control unit controls the motor located in the direction in which the difference value of the tilt is increased in the reference posture value among the right motor or the left motor, to a direction in which the difference value of the tilt is increased It is possible to output a control signal for controlling the intensity and period of the motor.

According to an embodiment of the present invention, the portable terminal control unit outputs a control signal for driving the motor such that air is injected into the air tube positioned in a direction in which the difference value of the pressure sensor increases from the reference attitude value among the plurality of air tubes can do.

A method of calibrating a posture using a system including a neckband, an air pressure cushion, and a portable terminal, the method comprising: (a) providing the neckband and cushion with three acceleration sensors, three gyroscopes, Transmitting a sensed value received from the three geomagnetic sensors and a sensed value from the plurality of pressure sensors to the portable terminal; (b) the portable terminal sets a reference posture value using the received sensing value; (c) transmitting the sensing value received from the three acceleration sensors, the three gyro sensors, and the three geomagnetic sensors and the sensed value from the plurality of pressure sensors to the portable terminal; And (d) a control for driving at least one of the right motor, the left motor, and the air pump motor when the portable terminal compares the received sensing value and the reference posture value and the difference value is equal to or greater than a predetermined threshold value, And outputting a signal.

According to an embodiment of the present invention, in the step (b), the portable terminal can set a reference posture value using a camera module and a display module.

According to an embodiment of the present invention, in the step (b), the sensing value received from the three acceleration sensors, the three gyro sensors, and the three geomagnetic sensors for a predetermined time, As a reference posture value.

According to an embodiment of the present invention, in the step (d), the portable terminal moves the motor positioned in the direction in which the difference value of the gradient of the right motor or the left motor increases from the reference attitude value, It is possible to output a control signal for controlling the intensity and period of the motor according to the direction in which the difference value is increased.

According to an embodiment of the present invention, in the step (d), the portable terminal drives the motor such that air is injected into the air tube located in a direction in which the difference value of the pressure sensor increases from the reference attitude value among the plurality of air tubes. The control signal can be output.

According to one embodiment of the present invention, the amount of air injection can be controlled by using a three-axis gyro, a three-axis geomagnetism, and a three-axis acceleration sensing value of a neck band and a cushion, have.

According to the present specification, it is possible to judge whether or not the system is still more variously different from the prior art. The effects described in the present specification are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an illustration of the elements that make up the posture correction system in accordance with the present disclosure;
2 is an illustration of an air pressure cushion according to the present invention.
3 is a flow chart of the posture correction method according to the present specification.
Figs. 4 and 5 are reference diagrams for setting reference posture values using a camera module. Fig.
Figure 6 is an illustration of an LDA.
7 is a detailed structure of the neck band.
8 is an exemplary diagram of a statistical screen using an app.
Fig. 9 shows a waist posture measurement screen (a) using an app and a turtle neck measurement screen (b) using an app.
Fig. 10 is a graph showing the relationship between the front and back bending (a), the side bending (b), the up and down twist (c)
Left and right leg twist (d).

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Wherever possible, the same or similar parts are denoted using the same reference numerals in the drawings.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto.

Means that a particular feature, region, integer, step, operation, element and / or component is specified and that other specific features, regions, integers, steps, operations, elements, components, and / It does not exclude the existence or addition of a group.

All terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

Hereinafter, a posture correcting system according to the present invention will be described with reference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an illustration of the elements that make up the posture correction system in accordance with the present disclosure;

1, the posture correction system according to the present invention may include a neckband 10, an air pressure cushion 30, and a portable terminal 20. It is noted that each of the configurations shown in FIG. 1 is an example for convenience of understanding.

The neckband 10 comprises two acceleration sensors for sensing three axes orthogonal to each other in a three-dimensional space, two gyrosensors for sensing three axes orthogonal to each other in a three-dimensional space, three axes sensing three axes orthogonal to each other in a three- Two geomagnetic sensors, a right motor disposed on the right side of the user's neck when mounted on the user's neck, a left motor disposed on the left side of the user's neck when mounted on the user's neck, a wireless communication module for wirelessly transmitting and receiving data, Wherein the control unit controls the sensing value received from the two acceleration sensors, the two gyro sensors, and the two geomagnetic sensors to be transmitted through the wireless communication module, and controls the right motor or the left motor And a neckband controller for outputting a signal for driving the neckband controller.

The two acceleration sensors and the two gyro sensors can sense the posture of the user, particularly the posture of the shoulder and the neck, when the neckband 10 is mounted on the user's neck.

The right motor and the left motor serve to give a vibration to the user in order to correct the posture correctly. That is, the structure is configured to control the vibration intensity and the oscillation period on either side through the right motor or the left motor, thereby notifying the user of the orientation of the user, which direction is not correct and which direction is inclined.

The intensity and period for driving the right motor or the left motor may be as shown in the following table.

Degree_max = Max [abs [roll, pitch, yaw]]

D = duration rate of vibration (0 < D < 1)

Ts = duration of vibration

Ti = strength of vibration

S = strength rate of vibration (0 < S < 1)

2 is an exemplary view of the pneumatic cushion 30 according to the present invention.

The pneumatic cushion 30 according to the present specification may comprise a plurality of air tubes. Referring to FIG. 2, it can be seen that the circular cushion is divided at a predetermined angle to divide the area. As an example, the predetermined angle may be 15 degrees. In addition, the pneumatic cushion 30 according to the present specification may have a laminated structure. In the example shown in Fig. 2, the three-layer structure includes (a) one layer, (b) two layers, and (c) three layers. The plurality of air tubes may be located on the second floor. An air pump motor for injecting or discharging air into the plurality of air tubes, an acceleration sensor for sensing three axes perpendicular to each other in a three-dimensional space, a gyro sensor for sensing three axes perpendicular to each other in a three- , And one geomagnetic sensor for sensing three axes perpendicular to each other in a three-dimensional space. And a plurality of pressure sensors corresponding to each of the plurality of air tubes may be located on the third layer. The pneumatic cushion 30 according to the present invention controls a wireless communication module for wirelessly transmitting and receiving data and a sensing value received by the plurality of pressure sensors to be transmitted through the wireless communication module, And a cushion controller for outputting a signal for injecting or discharging air into at least one or more air tubes by an air pump motor control signal. The wireless communication module and the cushion control unit may be located on the first floor.

Referring again to FIG. 1, the portable terminal 20 may include a camera module, a display module, a wireless communication module for transmitting and receiving data wirelessly, and a portable terminal controller. The portable terminal 20 may be a smart phone or the like as a known information processing terminal capable of transmitting data wirelessly and executing a stored program. In the present specification, it is assumed that the portable terminal 20 is provided with a posture correcting application according to the present invention in advance.

The portable terminal control unit compares the sensing values received from the three acceleration sensors, the three gyro sensors, and the three geomagnetic sensors and the sensing value received by the plurality of pressure sensors with a previously stored reference attitude value, And outputs a control signal for driving at least one of the right motor, the left motor, and the air pump motor when the detected value is equal to or greater than the set threshold value.

The portable terminal control unit can measure the neck posture by comparing the sensed values received from the two acceleration sensors, two gyro sensors and two geomagnetic sensors attached to the neck band. For example, it is possible to measure turtle neck position using the difference of roll values by using two geomagnetism, acceleration and gyro sensor located in the neck band.

Hereinafter, a method of calibrating the position of the portable terminal control unit will be described.

3 is a flow chart of the posture correction method according to the present specification.

First, in step S101, a reference posture value serving as a reference of calibration can be set.

According to an embodiment of the present invention, a reference posture value can be set using a camera of the portable terminal.

Figs. 4 and 5 are reference diagrams for setting reference posture values using a camera module. Fig.

As shown in FIGS. 4A and 4B, the camera of the portable terminal can be operated to center the virtual center line on the screen and the center of the image captured by the camera. Thereby enabling to set the position of the portable terminal. Then, as shown in FIG. 5, the posture of the user can be photographed to confirm that the user has taken the regular prescription.

The portable terminal control unit controls the sensing values received from the three acceleration sensors, the three gyro sensors and the three geomagnetic sensors output from the neckband and the air pressure cushion, and the sensing values received from the three pressure sensors The received sensing value can be stored as the reference attitude value. For example, a method of setting the reference posture value is to compare the eye, nose, mouth, and shoulder end points with the reference line on the display so that the user's posture maintains an angle below the threshold value. If the user presses the Calibration button on the display screen after taking the normal time, if the user enters the angle threshold (Angle_threshold, eg 85 degrees <Angle <95 degrees) And a pitch value are collected, and a roll value and a reference value (= normal value) of a pitch value can be stored by averaging the values. Meanwhile, the reference value may vary according to the posture. The user can sit such that the front face of the face can be seen based on the portable terminal, and the face can be seen to sit on the side face. The user may also be standing. Therefore, the reference values can be set differently according to various postures.

Next, in step S102, the portable terminal control unit may receive the sensed values received from the three acceleration sensors, the three gyro sensors, and the three geomagnetic sensors and the plurality of pressure sensors.

Next, in step S103, the portable terminal control unit can distinguish whether the user is in a sitting state or in a walking state by using the values that are always received.

More specifically, AC / LDA is performed by collecting Roll, Pitch, and Yaw values collected from the neck band. AC / LDA is an Autocorrelation / Linear Discriminant Analysis that is used to measure the roll, pitch, yaw, and roll angle of a user with a roll, pitch, The state of the user can be distinguished by distinguishing whether a change rate is shown or whether a roll rate, a pitch rate, and a yaw rate when sitting are shown. The following formula is a formula for deriving autocorrelation.

x (i): R.P.Y (Roll, Pitch, Yaw Data)

x (i + m): R.P.Y value shifted by time m

N: Signal length (measured data number in 3 seconds)

m: Length of the step (ex.

: Autocorrelation value

: Autocorrelation value

: Autocorrelation classes

: Autocorrelation classes

에 저장된 Autocorrelation class간에 LDA를 수행하여 Transformation matrix(weight vector)를 찾아낼 수 있다. 그 후 Transformation matrix간의 유클리디안 거리(Euclidean Distance)를 구하여, 거리값의 임계치를 벗어날 경우 다른 모집단으로 판단하는 알고리즘이다. 도 6은 LDA의 예시도이다.The transformation matrix can be found by performing the LDA with the collected autocorrelation values. For example

The LDA can be performed between the autocorrelation classes stored in the transform matrix (weight vector). Then, the Euclidean distance between the transformation matrix and the distance matrix is determined. Figure 6 is an illustration of an LDA.

Next, in step S104, the portable terminal control unit can receive the sensed values received from the three acceleration sensors, the three gyro sensors, and the three geomagnetic sensors and the plurality of pressure sensors. At this time, the received value is a value for judging whether or not the user is permanently charged.

More specifically, the portable terminal control unit compares the sensing values received from the three acceleration sensors, the three gyro sensors, and the three geomagnetic sensors, and the sensing value received by the plurality of pressure sensors with a previously stored reference attitude value, Is equal to or greater than a predetermined threshold value, it can be determined that it is in the wrong posture. The threshold value may be preset by a user or preset by a programmer.

On the other hand, the kinds of wrong attitudes can vary. It may simply be bent forward or backward, may be a posteriorly bent posture, may be bent back and forth, or may be twisted legs. Since the posture correction system according to the present invention collectively receives sensed values from the neckband and the cushion unlike the prior art, it is possible to more accurately determine whether or not to sit still. Specifically, only the Roll, Pitch, and Yaw values of the posture can be measured using the neckband 10. However, when it is combined with the air pressure cushion 30, the values output from the pressure sensor in the cushion, the single gyro sensor, the single acceleration sensor, and the one geomagnetic sensor are compared and the measurement is made using only the neckband It is possible to measure twisted postures and twisted postures of the waist that were impossible. For example, when using only a neckband, the overall user 's attitude type is classified into three types (roll_right, forward_right, right_x) (nine forward, forward, backward) (Yaw_ left twist, right yaw twist) x 2 (left and right twist) x 3 (yaw_ left, right, right twist) x 3 = 54 things' type.

Next, in step S106, the portable terminal control unit may notify that the user's posture is an incorrect posture. Preferably, the portable terminal control unit may output a signal for controlling the intensity and the cycle of the motor according to a direction in which the difference value of the gradient increases from the reference attitude value of the right motor or the left motor.

Next, in step S107, the portable terminal control unit may output a control signal for driving the motor such that air is injected into the air tube located in a direction in which the difference value of the pressure sensor increases from the reference attitude value among the plurality of air tubes. That is, the center of gravity moves to inject the additional air into the increased pressure portion to move the tilted user's body in the opposite direction.

In this case, the method of correcting the posture by injecting the air pressure can be applied differently depending on which attitude is wrong. First, in the case of a normal waist calibration, the position of the air tube in the cushion and the position of air in the cushion (i.e., The degree of injection can be controlled. At this time, so-called feedback may be provided to change the air injection position in the cushion as the roll value and the pitch value in the neck band change. On the other hand, when the leg is twisted, the degree of inclination of the neckband is less than the threshold, but the left and right pressure measured on the cushion may be above the threshold. In this case, air can be controlled to be injected in a direction having a relatively large pressure, that is, a center of gravity.

 Next, in step S108, when the posture returns to the normal state, the portable terminal controller may emit only the air that has been injected and output a control signal so that the initial prescription can be maintained.

The portable terminal may further include a storage device. In this case, the portable terminal control unit may accumulate and store the data on the user's normal term in the storage device. Then, the portable terminal control unit can provide the user with statistical data showing the change of the posture using the accumulated still-life data, and can control the user to feel comfort by applying the air pressure according to the optimized cushion portion have.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Accordingly, the embodiments disclosed herein are for the purpose of describing rather than limiting the technical spirit of the present invention, and it is apparent that the scope of the technical idea of the present invention is not limited by these embodiments. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: Neck band
20: Portable terminal
30: Air pressure cushion

Claims (12)

An acceleration sensor, a gyro sensor, and a geomagnetic sensor, each sensing three axes perpendicular to each other in a three-dimensional space; A right motor and a left motor respectively disposed on the right and left sides of the user's neck when mounted; A wireless communication module for wirelessly transmitting and receiving data; And a neckband control unit for controlling the sensing value received from the sensors to be transmitted through the wireless communication module and outputting a signal for driving the motors by a motor control signal received through the wireless communication module band:
A plurality of air tubes; An air pump motor for injecting or discharging air into the plurality of air tubes; A plurality of pressure sensors corresponding to each of the plurality of air tubes; A single acceleration sensor, a gyro sensor, and a geomagnetism sensor each sensing three axes perpendicular to each other in a three-dimensional space; A wireless communication module for wirelessly transmitting and receiving data, and a sensing value received by the plurality of pressure sensors, one acceleration sensor, one gyro sensor and one geomagnetic sensor to be transmitted through the wireless communication module, And a cushioning control part for outputting a signal for injecting or discharging air into at least one or more air tubes by an air pump motor control signal received through the module:
A camera module; A display module; A wireless communication module for wirelessly transmitting and receiving data, and a sensing value received from the three acceleration sensors, three gyro sensors, and three geomagnetic sensors, and a sensing value received by the plurality of pressure sensors, And a portable terminal controller for outputting a control signal for driving at least one of the right motor, the left motor and the air pump motor when the difference value is equal to or greater than a preset threshold value,
The air pressure cushion includes the air pump motor, the one acceleration sensor, the gyro sensor, and the geomagnetic sensor on the first floor, the air tube on the second floor, and the laminated structure having the pressure sensor on the third floor. Wherein the posture correcting system comprises: An acceleration sensor, a gyro sensor, and a geomagnetic sensor, each sensing three axes perpendicular to each other in a three-dimensional space; A right motor and a left motor respectively disposed on the right and left sides of the user's neck when mounted; A wireless communication module for wirelessly transmitting and receiving data; And a neckband control unit for controlling the sensing value received from the sensors to be transmitted through the wireless communication module and outputting a signal for driving the motors by a motor control signal received through the wireless communication module band:
A plurality of air tubes; An air pump motor for injecting or discharging air into the plurality of air tubes; A plurality of pressure sensors corresponding to each of the plurality of air tubes; A single acceleration sensor, a gyro sensor, and a geomagnetism sensor each sensing three axes perpendicular to each other in a three-dimensional space; A wireless communication module for wirelessly transmitting and receiving data, and a sensing value received by the plurality of pressure sensors, one acceleration sensor, one gyro sensor and one geomagnetic sensor to be transmitted through the wireless communication module, And a cushioning control part for outputting a signal for injecting or discharging air into at least one or more air tubes by an air pump motor control signal received through the module:
A camera module; A display module; A wireless communication module for wirelessly transmitting and receiving data, and a sensing value received from the three acceleration sensors, three gyro sensors, and three geomagnetic sensors, and a sensing value received by the plurality of pressure sensors, And a portable terminal controller for outputting a control signal for driving at least one of the right motor, the left motor and the air pump motor when the difference value is equal to or greater than a preset threshold value,
The portable terminal uses the sensed values received from the acceleration sensor, the gyro sensor and the geomagnetic sensor provided in the neck band and the pneumatic cushion to classify the prime pose having the reference posture value into 54 types, The types are three postures for the left, right, and right of the roll values, three postures for the forward, forward and backward of the pitch values, and 3 for the left, right, and right twist of the yaw value. The posture correcting system is characterized by being a combination of two postures of a posture and a left and right leg twist. The method according to claim 1 or 2,
Wherein the portable terminal sets a reference posture value using a camera module and a display module. The method of claim 3,
Wherein the portable terminal control unit sets a sensing value received from the three acceleration sensors and three gyro sensors and a sensing value received by the plurality of pressure sensors as a reference attitude value for a preset time period, . The method according to claim 1 or 2,
The portable terminal control unit controls the motor located in the direction in which the difference value of the tilt is increased from the reference posture value among the right motor or the left motor to the intensity and period of the motor according to the direction in which the difference value of the tilt is increased from the reference posture value And outputs the control signal to the posture correcting system. The method according to claim 1 or 2,
Wherein the portable terminal control unit outputs a control signal for driving the motor such that air is injected into an air tube positioned in a direction in which the difference value of the pressure sensor is increased from the reference attitude value among the plurality of air tubes. A pneumatic cushion having a neck motor having a right motor and a left motor disposed on the right and left sides of the user's neck respectively, a plurality of air tubes, and an air pump motor for injecting or discharging air into the plurality of air tubes, A method of calibrating a posture using a system comprising:
(a) transmitting the sensing value received from the three acceleration sensors, the three gyro sensors, and the three geomagnetic sensors and the sensed value from the plurality of pressure sensors to the portable terminal;
(b) the portable terminal sets a reference posture value using the received sensing value;
(c) transmitting the sensing value received from the three acceleration sensors, the three gyro sensors, and the three geomagnetic sensors and the sensed value from the plurality of pressure sensors to the portable terminal; And
(d) a control signal for driving at least one of the right motor, the left motor, and the air pump motor when the portable terminal compares the received sensing value and the reference posture value and the difference value is equal to or greater than a predetermined threshold value, ; / RTI &gt;
The air pressure cushion includes the air pump motor, the one acceleration sensor, the gyro sensor, and the geomagnetic sensor on the first floor, the air tube on the second floor, and the laminated structure having the pressure sensor on the third floor. And the posture correcting method. A pneumatic cushion having a neck motor having a right motor and a left motor disposed on the right and left sides of the user's neck respectively, a plurality of air tubes, and an air pump motor for injecting or discharging air into the plurality of air tubes, A method of calibrating a posture using a system comprising:
(a) transmitting the sensing value received from the three acceleration sensors, the three gyro sensors, and the three geomagnetic sensors and the sensed value from the plurality of pressure sensors to the portable terminal;
(b) the portable terminal sets a reference posture value using the received sensing value;
(c) transmitting the sensing value received from the three acceleration sensors, the three gyro sensors, and the three geomagnetic sensors and the sensed value from the plurality of pressure sensors to the portable terminal; And
(d) a control signal for driving at least one of the right motor, the left motor, and the air pump motor when the portable terminal compares the received sensing value and the reference posture value and the difference value is equal to or greater than a predetermined threshold value, ; / RTI &gt;
The portable terminal uses the sensed values received from the acceleration sensor, the gyro sensor and the geomagnetic sensor provided in the neck band and the pneumatic cushion to classify the prime pose having the reference posture value into 54 types, The types are three postures for the left, right, and right of the roll values, three postures for the forward, forward and backward of the pitch values, and 3 for the left, right, and right twist of the yaw value. A posture and a pair of left and right leg twists. The method according to claim 7 or 8,
Wherein the step (b) comprises setting the reference posture value using the camera module and the display module. The method of claim 9,
Wherein the step (b) comprises: sensing values received from the three acceleration sensors, three gyroscopes, and three geomagnetic sensors and a sensing value received by the plurality of pressure sensors for a predetermined period of time, Of the posture correcting method. The method according to claim 7 or 8,
Wherein the step (d) includes the steps of: determining whether the motor is located in a direction in which the difference value of the gradient of the right motor or the left motor is increased from the reference attitude value, And outputs a control signal for controlling the intensity and the period. The method according to claim 7 or 8,
Wherein the portable terminal outputs a control signal for driving the motor such that air is injected into the air tube located in a direction in which the difference value of the pressure sensor increases from the reference attitude value among the plurality of air tubes. Posture correction method.

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