KR20230032779A - Pedestrian Calibration System Using Smart Devices - Google Patents

Abstract

The present invention relates to a walking correction system using a smart device, comprising: a measuring device which measures a hip joint status that changes in real time while walking, generates walking status information, and transmits the generated walking status information to a smart device; and a smart device which displays an information input screen and user information loaded by executing a pre-installed application on a screen, receives the walking status information by setting a link with the measuring device, and displays the same on the screen in real time. According to the present invention, conditions of the hip joint are measured in real time through the smart device equipped on a wearer's waist and provided to the wearer, so that the wearer can correct a walking posture while checking the condition of one's hip joints for oneself while walking.

Description

Gait calibration system using smart devices {Pedestrian Calibration System Using Smart Devices}

The present invention relates to a gait correction system using a smart device, and more particularly, a smart device provided on the wearer's waist measures the gait state, particularly the hip joint state, in real time and provides it to the wearer, thereby enabling gait posture correction It's about technology.

Recently, diseases related to the musculoskeletal system are increasing due to the increase in the use of visual display terminals (VDTs) such as computers and smart phones. Sitting for a long time causes deformation of the turtle neck and shoulders, which push the head forward more than the normal spinal centerline, and causes a bent posture of the spine, reducing lordosis of the lumbar spine and increasing pressure and stress on the spine.

On the other hand, the ideal posture in the human body is defined as a balanced state in which pressure and stress on the spine are minimized by forming a soft curved shape in which the lordosis and kyphosis of the spine intersect. The normal curvature of the spine is lordosis in the cervical and lumbar vertebrae, and kyphosis in the thoracic and sacral vertebrae, which play a role in maintaining the balance of the spine and pelvis against the center of gravity of the body.

As shown in FIG. 1, when the pelvis tilts forward or backward, the compressive stress of gravity applied to the spine increases, the ability to move weight is hindered in the anterior and bilateral directions, and the center of gravity in the swing phase during walking increases. It is located posteriorly, so forward movement of the lower extremities is restricted, and walking speed and number of steps are reduced.

If the correction of the hip joint and gait is insufficient, as shown in FIG. 2, it causes problems such as turtle neck and flat back (flat back), resulting in pain in the lumbar region and an inefficient gait pattern. do.

The position of the pelvis plays an important role in good posture by equalizing the weight along with the surrounding muscles and ligaments of the spine, relieving external impact by reducing the burden on the vertebral body and each joint, and preventing tension and deformation of soft tissues. Among them, the pelvis supports the abdomen and supports the weight by connecting the spine and the lower extremities. It is an important part that allows the trunk to have a stable base and maintains a correct posture to facilitate the movement of the upper limbs. Therefore, the position of the pelvis plays a role in maintaining correct posture and controlling efficient gait.

The hip joint imbalance of busy modern people has various back pain and knee joint deformity problems. No. 2020-0094336 (name of invention: pelvis correction belt for a walking wearer) discloses a posture corrector for correcting distortion of the lower part of the pelvis or ribcage.

However, these posture correctors are instruments that physically correct posture through diagnosis in hospitals and clinics, and provide a function of correcting walking posture. Therefore, conventional gait posture correcting devices have a problem in that they rely only on physical devices without checking the wearer's own posture or correction state.

Correct walking posture strengthens the gluteus medius, stimulates the hamstrings and thigh muscles, and develops core strength. This can solve problems such as back pain, neck disc, and postural imbalance. In addition, when it is difficult for busy modern people to exercise separately, training for walking lightly improves human metabolism and strengthens functions. Training to strengthen the core, which is the most important part of the human body, will provide an effective system for many people who live only at home due to COVID-19.

Accordingly, the present applicant intends to propose a technique for the efficient movement of the hip joint and the effective development of the gluteus medius, hamstrings, and femoral muscles. In order to walk properly, the core strength is given through a neutral posture, and energy is received through the femoral muscles and hamstrings when the foot is stepped on, giving strength from the tip of the toe to walk with the feeling of kicking out. Through this, the direction of applying force appears differently according to the angle of the hip joint in the motion of giving strength to the core, and it is possible to correct the gait posture by measuring the posture of the hip joint for correct walking.

Korean Patent Publication No. 10-2015-0143271 (2015.04.10.) Korean Patent Publication No. 10-2020-0094336 (2020.08.07.)

An object of the present invention is to measure the state of the hip joint in real time through a smart device provided on the wearer's waist and provide it to the wearer, thereby enabling the wearer to correct his or her walking posture while checking the state of the hip joint while walking.

Specifically, an object of the present invention is to correct the posture while recognizing the state of the wearer's hip joint by measuring the direction in which force is transferred according to the angle of the hip joint through a smart device provided on the wearer's waist and comparing it with the normal walking posture. are making it possible

A gait correction system using a smart device according to an embodiment of the present invention for achieving these technical problems generates gait posture status information by measuring the hip joint condition that is variable in real time while walking, and generates gait posture status information. Instruments that transmit to smart devices; And a smart device displaying the information input screen and user information loaded through the execution of the pre-installed app on the screen, receiving the gait state information through link setting with the instrument and displaying it on the screen in real time. .

Preferably, the measuring instrument is attached to the skin in contact with the wearer's hip joint and is characterized in that it can be connected to the smart device through a wireless communication network.

The measuring instrument is detachably attached to the pelvis and includes a pelvic posture measurement sensor that measures the angle, angular velocity, and angular acceleration of the attached point in the roll, pitch, and yaw directions of the attached point. It is characterized by doing.

The pelvic posture measuring sensor includes an acceleration sensor, an angular velocity sensor (gyroscope), an angular acceleration sensor (accelerometer), an electromyogram sensor (EMG), and a thigh pressure sensor (abdominal bracing trainer sensor (ABT)), and includes an angular acceleration sensor. The angular acceleration is measured through the angular velocity sensor, the angular velocity is measured through the angular velocity sensor, the angular acceleration is derived by integrating the angular acceleration of the angular acceleration sensor, the angle is derived by integrating the derived angular velocity, and the angular velocity of the angular velocity sensor is integrated to derive the angle. characterized by

The pelvic posture measurement sensor includes a tri-axial accelerometer sensor that measures angle, angular velocity, and angular acceleration with respect to roll, pitch, and yaw of an attached point; and a gyroscope sensor or magnetometer sensor for correcting measured data values.

When a preset unique identification ID for a measuring instrument is detected, the smart device connects a communication link with the measuring instrument to maintain the connected state, and displays the stationary posture status information and the gait posture status information received from the measuring instrument on the screen. an interlocking unit; and a setting unit for transmitting a control signal received for controlling driving of the instrument to the instrument via the interlocking unit.

The smart device further includes a management unit that displays, in the form of a graph or an arrow, values for the angle, angular velocity, and angular acceleration included in the stationary posture state information or the gait state information and the direction in which the force is transferred on a screen with the pelvic skeleton as a background. It is characterized by doing.

In addition, at least four measuring instruments are provided to measure the hip joint state in the north, south, east, west directions.

According to the present invention as described above, by measuring the state of the hip joint in real time through a smart device provided on the wearer's waist and providing the result to the wearer, the wearer himself can correct the walking posture while checking the state of the hip joint while walking. .

Specifically, according to the present invention, it is possible to correct posture while recognizing the state of the wearer's own hip joint by measuring the direction in which force is transferred according to the angle of the hip joint through a smart device provided on the wearer's waist and comparing it with a normal walking posture. It works.

1 is an exemplary view showing anterior or posterior inclination of the pelvis.
Figure 2 is an exemplary diagram showing a turtle neck and flatback phenomenon.
Figure 3 is a block diagram showing a gait correction system using a smart device according to an embodiment of the present invention.
Figure 4 is a block diagram showing a measuring instrument of a gait correction system using a smart device according to an embodiment of the present invention.
Figure 5 is an exemplary view showing the measurement of the stationary posture through the measuring instrument of the gait correction system using a smart device according to an embodiment of the present invention.
6 is a block diagram illustrating a smart device of a gait correction system using a smart device according to an embodiment of the present invention.
Figure 7 is a flow chart showing a gait correction method using a smart device according to an embodiment of the present invention.
8 is a gait correction method using a smart device according to an embodiment of the present invention

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in this specification and claims do not reflect the technical spirit of the present invention based on the principle that the inventor can appropriately define the concept of terms in order to best explain his or her invention. It should be interpreted in accordance with the meaning and concept. In addition, when it is determined that a detailed description of a known function and its configuration related to the present invention may unnecessarily obscure the gist of the present invention, it should be noted that the detailed description is omitted.

Referring to FIG. 3 , the gait correction system (S) using a smart device according to an embodiment of the present invention measures a hip joint state that is variable in real time while walking to generate gait posture state information, and the generated stationary posture state The measuring instrument 100 transmits information and gait state information to a smart device, and displays the information input screen and user information loaded through the execution of a pre-installed app on the screen, and establishes a link with the measuring instrument 100 in a stationary posture state. It is configured to include a smart device 200 that receives information and gait state information, but displays the received gait state information on a screen in real time.

Although detailed description thereof will be omitted below, the measuring instrument 100 according to an embodiment of the present invention is attached to the skin in contact with the wearer's hip joint and is configured to be connected to the smart device 200 through a wireless communication network, but the attachment position is not necessarily limited to the skin in contact with the hip joint, and can be attached and detached to various locations such as the spine or the knee.

In addition, the measuring instrument 100 may be provided in plurality and attached to the skin in contact with one and the other hip joint of the wearer, but the present invention is not limited thereto, and may be attached to a spinal position such as the thoracic, lumbar, or sacral vertebrae in addition to the bone feet. there is.

In addition, at least four measuring instruments 100 according to an embodiment of the present invention may be configured to measure the state of the hip joint in the north, south, east, west directions.

In addition, it is understood that the smart device 200 according to an embodiment of the present invention is composed of any one of a smartphone or a tablet capable of connecting to the measuring instrument 100 through a wireless communication network and is executed through a pre-installed app. desirable.

Hereinafter, referring to FIG. 4, the measuring instrument 100 of the gait correction system (S) using a smart device according to an embodiment of the present invention is as follows.

The measuring instrument 100 includes a pelvic posture measurement sensor 110, a parameter derivation unit 120, a controller 130, and a communication unit 140, and is detachable to the outer skin of the wearer's pelvis by an adhesive material or by a band. It may be fixed and provided so as to come into contact with the outside of the wearer's pelvis.

First, the pelvic posture measurement sensor 110 is detachably attached to the pelvis, and the roll, pitch, and yaw directions of the attached point of the attached point, that is, the X-axis, Y-axis, and Z-axis It measures angle, angular velocity and angular acceleration about an axis.

At this time, the pelvic posture measuring sensor 110 includes an acceleration sensor, a gyroscope, an accelerometer, an electromyography sensor (EMG), and an abdominal bracing trainer sensor (ABT). The angular acceleration can be measured through the angular acceleration sensor and the angular velocity can be measured through the angular velocity sensor. The angular velocity is derived by integrating the angular acceleration of the angular acceleration sensor, the angle is derived by integrating the angular velocity, and the angle is derived by integrating the angular velocity of the angular velocity sensor.

In addition, a more accurate final angle can be derived by using a weighted average of the angle calculated by integrating twice in the angular acceleration sensor and the angle calculated by integrating once in the angular velocity sensor.

The pelvic posture measuring sensor 110 is a tri-axial accelerometer sensor to measure the angle, angular velocity, and angular acceleration for roll, pitch, and yaw of the attached point. It can be configured to include. In addition, the pelvic posture measurement sensor 110 may further include a gyroscope sensor or a magnetometer sensor that improves precision by correcting measurement data values.

Meanwhile, the parameter derivation unit 120 derives a first parameter through the data measured by the pelvic posture measuring sensor 110, and the controller 130 derives the first parameter derived through the parameter derivation unit 120. By combining them, a second parameter including an index capable of determining a pelvis condition is generated.

Specifically, the parameter derivation unit 120 derives a first parameter by calculating and combining data measured by the pelvic posture measurement sensor 110, and the EMG sensor 111 and the femoral muscle of the pelvis posture measurement sensor 110 The first parameter may be derived through any one or more of data measured by the pressure sensor, and the first parameter may be derived by calculating and combining the data measured by the spine posture measuring sensor 110 .

The first parameter derived through the parameter derivation unit 120 includes any one of a pelvic lordosis angle, an average pelvic lordosis angle, a pelvic lordosis angular velocity, and a square mean pelvic lordosis angular velocity.

The first parameter may be an average bending angular velocity defined as an absolute value of an average pelvic lordosis angular velocity during a time period in which the pelvic lordosis angular velocity is negative, and a maximum value defined as a minimum value in which the pelvic lordosis angular velocity is negative during a specific time or a specific motion. It may also be a bending angular velocity.

Here, the average bending angular velocity and the maximum bending angular velocity may not exist when no lordosis angular velocity occurs within a corresponding time or operation, and the first parameter may be an instantaneous pelvic lordosis angle or an instantaneous pelvic lordosis angular velocity, The pelvic lordosis angle represents the pelvic lordosis angle at a specific time point, and the instantaneous pelvic lordosis angular velocity may indicate the pelvic lordosis angular velocity at a specific time point.

Also, the first parameter may be a pelvic range of motion in a roll direction defined as a difference between a maximum pelvic lordosis angle and a minimum pelvic lordosis angle during a specific time interval or a specific exercise duration.

At this time, the pelvic range of motion in the roll direction can be derived through the difference between the maximum pelvic lordosis angle and the minimum pelvic lordosis angle between specific movements or time intervals, and in the case of cyclic motions such as walking, the maximum within one cycle. It may be obtained by the difference between the pelvic lordosis angle and the minimum pelvic lordosis angle.

In addition, the first parameter is average pelvic lateral bending, minimum pelvic lateral bending, maximum pelvic lateral bending, initial pelvic lateral bending, average pelvic axial twist, minimum pelvic axial twist, maximum pelvic axial twist, initial pelvic axial twist, average extension angular velocity, Maximum extension angular velocity, mean squared spine lateral bending angular velocity, mean squared mean pelvic lateral bending angular velocity, maximum lateral bending angular velocity, mean squared pelvic axial twist angular velocity, mean squared pelvic axial twist angular velocity, maximum axial twist angular velocity, squared mean pelvic lordosis angular acceleration, average bending angular acceleration, Maximum flexion angular acceleration, average extension angular acceleration, maximum extension angular acceleration, squared average pelvic lateral bending angular acceleration, average pelvic lateral bending angular acceleration, maximum pelvic lateral bending angular acceleration, range of motion in the pitch direction, squared average pelvic axial twist angular acceleration, average pelvic axial twist angular acceleration, It can be any one of maximum pelvic axial twist angular acceleration, range of motion in the yaw direction, activity of each trunk muscle, or thigh muscle pressure.

The parameter derivation unit 120 derives a plurality of first parameters and applies a second parameter derived by combining the plurality of first parameters to the controller 130, and the controller 130 analyzes the second parameter and It generates stationary posture status information and gait posture status information that can determine the pelvis status.

That is, the second parameter can be derived by combining a plurality of first parameters, and the second parameter includes a pelvic lordosis robustness index, which is the average pelvic lordosis angle included in the first parameter and the square mean pelvic lordosis angular velocity can be derived through

On the other hand, the control unit 130 generates stationary posture state information and gait state information for the pelvis of the wearer based on the pelvic lordosis robustness index included in the second parameter applied from the parameter derivation unit 120. is generated according to a second parameter measured and generated while the wearer is in a stopped state, and gait state information is generated according to the second parameter generated while the wearer is walking.

In addition, the controller 130 may generate stationary posture state information and gait state information for any one of the gluteus medius muscle, the gluteus medius muscle, or the hamstring muscle of the wearer based on the second parameter applied from the parameter derivation unit 120 .

Then, the communication unit 140 transmits the state information of the stationary posture and the state information of the walking posture received from the control unit 130 to the smart device 200 . At this time, the communication unit 140 is connected to the smart device 200 through a wireless communication network, and applies the control signal received from the smart device 200 to the controller 130 to obtain the pelvic posture measurement sensor 110 and the parameter derivation unit. The operating state of (120) can be controlled.

The communication unit 140 is connected to the smart device 200 through any one wireless communication network among Bluetooth, Zigbee, and beacon, and may be connected by matching a preset unique identification ID.

Meanwhile, FIG. 5 is an exemplary diagram illustrating the measurement of a stationary posture through the measuring instrument 100 of the gait correction system (S) using a smart device according to an embodiment of the present invention. As shown in FIG. 5, by measuring the state of each of the neutral posture, C posture, and S posture in a state where the wearer is stationary, the direction in which force is applied according to the motion and angle of the hip joint, and the status of the gluteus medius muscle, hamstring muscle, and thigh muscle It is possible to measure stationary state information including

Hereinafter, referring to FIG. 6, the smart device 200 of the gait correction system (S) using the smart device according to an embodiment of the present invention is as follows.

The smart device 200 includes an interlocking unit 210, a setting unit 220, and a management unit 230, and displays the stationary posture status information and the gait posture status information received from the measuring instrument 100 on the screen, Values for the angle, angular velocity, and angular acceleration of the point where the measuring instrument 100 is attached are displayed on the screen.

First, when a predetermined unique identification ID is detected among a plurality of instruments 100, the interlocking unit 210 maintains a connection state by connecting a communication link with the instrument 100, and receives information received from the instrument 100. The stationary posture status information and the walking posture status information are displayed on the screen.

In addition, the setting unit 220 transmits the control signal received from the wearer to control the driving of the instrument 100 to the instrument 100 via the interlocking unit 210. At this time, the control signal includes the power of the instrument 100. A signal for on/off switching, a signal for requesting any one of information about ecology of a stationary posture or information of a gait posture may be included, but the present invention is not limited thereto.

In addition, the setting unit 220 receives a control signal for receiving the gait posture state information from the wearer in real time or a control signal for receiving the gait posture state information for a set time, and via the interlocking unit 210, the meter ( 100), receive time and period for receiving gait state information from the wearer and transmit it to the measuring instrument 100 via the interlocking unit 210.

In addition, the management unit 230 is configured to display values for angles, angular velocities, and angular accelerations included in the stationary posture status information or the gait posture status information and the direction in which force is transferred in the form of a graph or an arrow on a screen with the pelvic skeleton as the background. However, the present invention is not limited thereto.

At this time, the gait state information displayed by the management unit 230 displays numerical values, graphs, or arrows on the screen to correspond to the time-sequentially variable state.

As such, according to one embodiment of the present invention, the wearer can classify his pelvis state into a stationary state and a walking state and check it through the smart device 200, and through this, the wearer himself can correct his posture.

In addition, the management unit 230 may transmit the stationary posture state information and the walking posture state information to the medical institution linked with the wearer according to the control of the wearer. Through this, the wearer's pelvic state can be provided to medical staff to be used for posture correction or treatment.

In addition, the management unit 230 compares the stationary posture state information or the gait posture state information with pre-registered correct posture information to determine whether or not the stationary posture state information or the gait posture state information is out of the set range. , It is configured to output a notification sound or generate vibration so that the wearer can recognize his or her posture without checking the smart device.

Hereinafter, referring to FIG. 7, a gait correction method using a smart device according to an embodiment of the present invention will be described below.

First, the instrument 100 is attached to the outside of the skin in contact with the wearer's pelvis (S702).

Subsequently, the measuring instrument 100 measures the wearer's pelvis state and generates stationary posture state information or walking posture state information (S704).

Subsequently, the stationary posture state information or the walking posture state information generated by the measuring instrument 100 is transmitted to the smart device 200 (S706).

Then, the smart device 200 displays the received state information of the stationary posture or state of walking posture on the screen (S708).

Hereinafter, referring to FIG. 8, the detailed process of step S704 of the gait correction method using a smart device according to an embodiment of the present invention is as follows.

After step S702, the instrument 100 measures the angular acceleration through the angular acceleration sensor (S802).

Subsequently, the instrument 100 measures the angular velocity through the angular velocity sensor (S804).

Subsequently, the measuring instrument 100 derives the angular velocity by integrating the angular acceleration of the angular acceleration sensor (S806).

Subsequently, the measuring instrument 100 derives an angle by integrating the angular velocity (S808).

Then, the measuring instrument 100 derives an angle by integrating the angular velocity of the angular velocity sensor (S810).

According to one embodiment of the present invention as described above, by measuring the state of the hip joint in real time through the smart device provided on the waist of the wearer and providing the measurement to the wearer, the wearer himself checks the state of the hip joint while walking while walking correction is possible

Although the above has been described and illustrated in relation to preferred embodiments for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described in this way, and does not deviate from the scope of the technical idea. It will be readily apparent to those skilled in the art that many changes and modifications can be made to the present invention without Accordingly, all such appropriate alterations and modifications and equivalents should be regarded as falling within the scope of the present invention.

S: Gait correction system using smart device
100: instrument
110: pelvic posture measurement sensor
120: parameter derivation unit
130: control unit
140: communication department
200: smart device
210: interlocking unit
220: setting unit
230: management unit

Claims (8)

A measuring instrument for generating gait posture state information by measuring the hip joint state that is variable in real time during walking, and transmitting the generated gait posture state information to a smart device; and
A smart device that displays the information input screen and user information loaded through the execution of the pre-installed app on the screen, receives the gait status information through the link setting with the instrument, and displays it on the screen in real time.
Gait correction system using a smart device, characterized in that it comprises.
According to claim 1,
The meter,
It is attached to the skin in contact with the wearer's hip joint and can be connected to the smart device through a wireless communication network.
Gait correction system using a smart device, characterized in that one.
According to claim 1,
The meter,
It is provided to be detachable from the pelvis and measures the angle, angular velocity, and angular acceleration of the attached point in the roll, pitch, and yaw directions of the attached point.
Gait correction system using a smart device, characterized in that it comprises.
According to claim 3,
The pelvic posture measuring sensor,
It consists of an acceleration sensor, an angular velocity sensor (gyroscope), an angular acceleration sensor (accelerometer), an electromyography sensor (EMG, Electromyography sensor), and a thigh pressure sensor (ABT, Abdominal Bracing Trainer sensor),
Angular acceleration is measured through the angular acceleration sensor, angular velocity is measured through the angular acceleration sensor, angular velocity is derived by integrating the angular acceleration of the angular acceleration sensor, an angle is derived by integrating the derived angular velocity, and the angular velocity of the angular velocity sensor is Integrate to derive the angle
Gait correction system using a smart device, characterized in that to do.
According to claim 3,
The pelvic posture measuring sensor,
A tri-axial accelerometer sensor that measures angle, angular velocity, and angular acceleration for roll, pitch, and yaw of the attached point; and
A gyroscope sensor or magnetometer sensor to calibrate the measured data value
Gait correction system using a smart device, characterized in that it further comprises.
According to claim 1,
The smart device,
When a predetermined unique identification ID for the instrument is detected, a linkage unit that maintains a connection state by connecting a communication link with the instrument and displays the stationary posture status information and the gait posture status information received from the instrument on the screen. ; and
A setting unit for transmitting a control signal input for controlling the driving of the instrument to the instrument via the interlocking unit
Gait correction system using a smart device, characterized in that it comprises.
According to claim 6,
The smart device,
A management unit that displays values for the angle, angular velocity, and angular acceleration included in the stationary posture state information or the gait state information and the direction in which force is transferred in the form of a graph or an arrow on a screen with the pelvic skeleton as the background.
Gait correction system using a smart device, characterized in that it further comprises. According to claim 1,
The meter,
Equipped with at least four pieces to measure the hip joint condition in the east, west, south, and north directions
Gait correction system using a smart device, characterized in that being.

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