KR101380341B1 - The apparatus of force plate with 4 channel - Google Patents

Abstract

The present invention relates to a foot force real time analysis apparatus according to the movement of a user through a 4 channel type force plate. According to one embodiment of the present invention, a foot force real time analysis apparatus according to the movement of a user through a 4 channel type force plate includes a start setting band part (100) which sets X,Y,Z vector value; a 4 channel foot force detection type force plate (200); a main control part (300) which transmits start point setting data to a smart device. [Reference numerals] (100) Start setting band part

Description

Foot force real-time analysis device according to user's movement through 4-channel sensing force plate {THE APPARATUS OF FORCE PLATE WITH 4 CHANNEL}

The present invention does not analyze the change in the center of gravity according to the weight movement by detecting only the user's weight, but senses the four-channel measurement data of the foot force applied before and after the left foot and the user's right foot according to the user's movement, in real time. It can be displayed by transmitting it to smart devices such as smart phones, smart TVs, and smart pads.The user analyzes the graphs of the kinetic movements of the entire movements of the body and the kinematic movements of the feet by the user's movements. Analyze whether the motion is moving efficiently, compare and analyze it by motion section through the graph of the roll model, and use the training mode to detect the user with the sound effect when it is within the standard range value. It relates to a real-time analysis device according to the movement of the force.

In general, the foot force is the basic movement of all the exercises to support the user's upper body movements such as golf, football, baseball, archery, fitness, rehabilitation exercises to maintain a steady posture.

In other words, checking the strength and direction of force applied to the front end of the left foot and the rear end of the left foot, and the front end of the right foot and the rear end of the right foot is the core of exercise posture correction and rehabilitation treatment.

Currently, the conventional motion analysis apparatus mainly focuses on the user's upper body movement, and accurately captures the swing posture under the guidance of an expert by accurately catching each motion section through a cam camera and a wear sensor.

In order to solve this problem, Korean Patent Publication No. 10-1135317 (announced on April 17, 2012) is a stone seat is provided to support both feet of the user for the golf swing; At least four or more weight sensors provided on the bottom of the at bat to sense a weight when a user swings and installed at predetermined positions symmetrically with respect to the at bat; And receiving information about the position of each weight sensor and a weight sensing value of each weight sensor, respectively, and using the sensed values to determine the position of the center of gravity before and after the swing or during the swing. Calculate continuously or intermittently, calculate the change width and direction of change of the center of gravity at the swing of the user from the calculated position information of the center of gravity, and calculate the weight shift situation of the user from the information on the change of the calculated center of gravity Although the analysis unit for analyzing the weight shift, including;

It only detects the user's weight through four or more weight sensors consisting of piezoelectric elements and string gauges, and analyzes the change in the center of gravity according to weight movement. Since there is no device for analyzing force change, there is a problem that accurate swing posture analysis and posture correction on how much force should be applied before and after the left foot and right foot, and which direction should be applied. .

In addition, the device displays the value sensed by the weight sensor in real time on the display screen near the swing after swinging, and there is no device to compare and analyze the roll model data through the continuous trajectory without motion between motions. In the posture correction is not possible, and above all, difficult to carry and move, golf, baseball, archery, fitness, rehabilitation exercises, such as a wide range of applications can not be applied, there was a problem in practicality and compatibility is poor.

Domestic Patent Publication No. 10-1135317 (announced on April 17, 2012)

In order to solve the above problems, the present invention senses the four-channel measurement data of the foot force applied to the front and rear of the left foot and the user's right foot according to the user's movement, to a smart device consisting of a smart phone, smart TV, smart pad in real time It can transmit and express the user's movement right in the field, and the user's movement can be analyzed by analyzing the continuous locus coordinates of the whole body movement and the graph of the kinematic movement of each foot's movement. It analyzes the movement of the robot, and compares it by motion section through the graph of the roll model, and then informs the user with the sound effect when it is within the reference range value using the training mode. It can be carried and moved, so it can be used for soccer, baseball, archery, and ball. Varnish, applied to a wide range such as a rehabilitation exercise it is possible to combine, to provide a foot force real-time analysis device according to the practical and compatible with the user's motion to excellent four-channel sensing force plate it is an object.

Foot real-time analysis device according to the user's movement through the four-channel sensing force plate according to the present invention to achieve the above object

A start setting band unit 100 which is attached to a user's wrist and sets a start point relating to a change in the user's foot force on the 4-channel foot force detecting force plate;

Four-channel force sensing type force plate 200 formed in the shape of a square plate, to detect and measure the change in the foot force applied to the front and rear of the user's left foot before and after the user's right foot in four channels, and

Foot force applied before and after the user's left foot and the user's right foot on the screen by amplifying and receiving the sensing values of the user's left foot and the user's right foot before and after from the four-channel foot force detecting force plate through 4 channels. After expressing the four channel measurement data of the main controller unit 300 for transmitting the displayed four-channel measurement data and the start point setting data transmitted from the start setting band unit to the smart device through a short-range wireless communication network,

It is connected to the main controller unit and the short-range wireless communication network by connecting with smart devices such as smart phones, smart TVs and smart pads, and continuously analyzes 4 channel measurement data and start point setting data transmitted from the main controller unit by time and motion operation. Four-channel force sensing smart device application that converts the measured spline data from the start point to the endpoint and then informs the user through sound effect and graphic visual effect when it is within the standard value range compared with the preset roll model type reference spline data. This is accomplished by being made up of modules 400.

As described above, in the present invention, the four-channel measurement data of the foot force can be sensed and transmitted in real time to a smart device consisting of a smart phone, a smart TV, and a smart pad. It is possible to provide accurate movement posture analysis and posture correction on the spot in real time about which direction the force should be applied to, and improve the user's convenience and exercise acquisition rate by 70%. It is easy to install, low cost, and portable and mobile, so it can be applied to various ranges such as soccer, baseball, archery, fitness, and rehabilitation exercises other than golf. There is.

1 is a block diagram showing the components of the foot force real-time analysis device 1 according to the user's movement through the channel-sensitive force plate according to the present invention,
2 is a block diagram showing the components of the start setting band unit 100 according to the present invention;
Figure 3 is an exploded perspective view showing the components of the four-channel force-sensitive force plate according to the present invention,
4 is a perspective view showing the components of the force-sensitive load cell according to the present invention,
5 is an exploded perspective view showing the components of the main controller according to the present invention;
6 is a circuit diagram illustrating a connection configuration between a sensor input unit, an amplifier unit, and an AD converter unit according to the present invention;
7 is a circuit diagram illustrating a connection configuration of a display unit connected to a microcomputer unit, a short range wireless communication module, a USB data communication module, and a battery charging circuit according to the present invention;
8 is a block diagram showing the components of the four-channel force sensing type smart device application module according to the present invention,
9 is a block diagram showing the components of the smart device connection setting unit according to the present invention;
10 is a configuration diagram showing the components of the force activity (Activity) according to the present invention,
11 is a block diagram showing the components of the four-channel seesaw type force control unit according to the present invention,
FIG. 12 illustrates a force sensing load cell 230 including a first load cell 231, a second load cell 232, a third load cell 233, and a fourth load cell 234 according to the present invention. One embodiment showing that the right displacement (COPml) and the front-rear displacement (COPap) of the four-channel pressure center as a reference value, is installed in the site of high force,
13 is a left foot front end motion, left foot rear end motion, right foot front end motion, from the start point time set from the start point setting data according to the present invention according to the present invention to the end point after the set time (0.3 to 3 seconds). Graph showing operation control of the strength data and direction data of the foot force in the form of a continuous trajectory through four channels of the rear end motion of the right foot,
14 is an embodiment showing that the real-time analysis device according to the user's motion through the four-channel sensing force plate according to the present invention to apply the golf swing motion to provide the strength data and the direction data in real time in the field Ye
FIG. 15 is a diagram illustrating an application of a real-time analysis device according to a user's movement through a four-channel sensing force plate according to the present invention to an archery swing motion to provide strength data and direction data of a foot force in real time in the field. Ye
FIG. 16 is a view illustrating an application of a real-time analysis device according to a user's movement through a four-channel sensing force plate according to the present invention to a baseball swing motion to provide strength data and direction data of a foot force in real time in the field. Ye
FIG. 17 is a view showing an application of a foot force real-time analysis device according to a user's motion through a four-channel sensing force plate according to the present invention to a fitness exercise to provide strength data and direction data of the foot force in real time in the field. .

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a configuration diagram showing the components of the foot force real-time analysis device 1 according to the user's movement through the channel-sensitive force plate according to the present invention, which is the start setting band unit 100, four-channel foot force detection Force plate 200, the main controller 300, four-channel force sensing type smart device application module 400 is composed of.

First, the start setting band unit 100 according to the present invention will be described.

The start setting band unit 100 is attached to the user's wrist, and serves to set the start point of the user's foot change on the four-channel foot-forced force plate.

As shown in FIG. 2, the band body 110, the power supply unit 120, the three-axis gyro sensor 130, the sensor control unit 140, and the wireless communication module 150 are configured.

The band-shaped body 110 is formed of a band-shaped pad, the Velcro tape is formed on one side of the end, and worn on the user's wrist serves to protect and support each device is not shaken by external pressure.

The power supply unit 120 serves to supply power to each device.

The three-axis gyro sensor 130 is located on one side of the power supply unit, and serves to digitize the value of the angle of rotation according to the user's wrist movement in unit time with respect to one axis of the X-axis, Y-axis, and Z-axis to transfer to the sensor controller. Do it.

It is a sensor that measures the angular velocity, and the rotation angle measured is composed of ITG_3200 / ITG-3205 to detect delicate rotational motion.

The present patent requires only the rotation direction instead of the rotation angle to recognize the motion motion according to the user's movement, which is configured to be understood as the value of the acceleration sensor.

In other words, it is a sensor that informs the value of the angle of rotation of an object in unit time with respect to one axis. When the moving object rotates, the force of 'Collioris' acts perpendicularly to the speed direction. It detects the angular velocity by using.

When detecting the value of the angle rotated according to the user's wrist movement through the three-axis gyro sensor, the origin is set as an example, in the case of golf, the wrist is a horizontal point on the same line as the grip of the golf club.

For example, in the case of golf, the start point is set to an X, Y, Z vector value when the user takes a golf club and starts takeaway. This is because the user's foot force is changed when the take-away is started while holding a golf club. In the present invention, the X, Y, and Z vector values at the start of the takeaway are set to reference rotation angle values in advance and stored in the memory unit.

The sensor controller 140 is connected to a power supply unit, a three-axis gyro sensor, and a wireless communication module to control the overall operation of each device, the reference rotation angle value of the rotation angle value of the three-axis gyro sensor measured according to the user's wrist movement After comparing with, it checks whether the reference rotation angle value is within the range, and sets the start point data on the change of the user's force.

The wireless communication module 150 is connected to the main controller by a short range wireless communication network, and wirelessly transmits start point data about a change in the user's foot force, which is checked through the sensor controller.

Next, the four-channel force sensing type force plate 200 according to the present invention will be described.

The four-channel force sensing type force plate 200 is formed in four independent square plate shapes, and detects the change in the force applied to the front and rear of the user's left foot and the user's right foot on the square plate by measuring the four channels. It plays a role.

As shown in Figure 3, it consists of a square plate 210, cross-shaped reference point setting unit 220, the force-sensitive load cell 230, the data line unit 240.

First, the square plate 210 according to the present invention will be described.

The square plate 210 is formed in four independent quadrangular shapes to support the user to stand up and to protect each device from external pressure.

It is formed by connecting the horizontal frame and the vertical frame to form a rectangular frame body, and then put a rectangular panel on the top of the rectangular frame body.

The square plate has a cross-shaped reference point set portion formed on one side of the lower end, and a force-sensing load cell is formed based on the cross-shaped reference point set portion.

Second, a cross reference point setting unit 220 according to the present invention will be described.

The cross reference point setting unit 220 is located at the bottom of the square plate, and is formed in a cross shape around the main center point of the square plate to detect the four feet of the foot before and after the user's left foot and the user's right foot. It serves to set the reference point so that the load cell is installed at the position where the load is heavily applied.

The main center point of the square plate is set by the user to step on the square plate and open the horizontal line with the shoulder width as the X axis reference line, set the vertical line after the left power generation and the vertical line after the right power generation as the Y axis reference line, and then set the Y axis reference line as the shoulder width. Move to the center of the X-axis baseline and set the point where it meets the X-axis baseline.

Then, after forming a cross shape around the main center point, the reference point is set so that the four force-sensing load cells for detecting the foot force before and after the user's left foot and before and after the user's right foot are installed at a position receiving a lot of foot force.

Because of this, the square plate is formed into four independent squares.

In addition, four independent rectangular square plates are divided into a left foot front end, a left foot rear end, a right foot front end, and a right foot rear end, respectively, and the foot force is applied to the left foot front end, left foot rear end, right foot front end, and right foot rear end. In order to set the position that receives a lot, the cross reference point is set again and the load cell is placed in the position where the foot is received.

The reference point is formed in a user's left foot shape and right foot shape.

Third, the force sensing load cell 230 according to the present invention will be described.

The force-sensing load cell 230 is installed 1: 1 at the left foot front end, left foot rear end, right foot front end, right foot rear end receiving a lot of foot force set through the cross reference point setting unit, and changes the user's foot force by four channels. To detect and measure

This is composed of a first load cell 231, a second load cell 232, a third load cell 233, and a fourth load cell 234.

The first load cell 231 serves to detect and measure the force applied to the left power generating end.

As shown in FIG. 4, the first load cell body 231a, the first load cell strain gauge 231b, and the first load cell strain gauge terminal 231c are configured.

The first load cell body 231a has a rectangular block shape, and is bolted to one side of the lower end of the square plate to protect and support each device from external pressure.

The first load cell strain gauge 231b serves to measure a change in stress with respect to the force applied to the left power generating end as a change in the electric resistance value. It is constructed by incorporating an electrical resistor onto a thin film.

The first load cell strain gauge terminal 231c is connected to a data line unit and serves to transfer the actuation data for the left power generation end measured by the first load cell strain gauge to the data line unit.

The second load cell 232 serves to detect and measure the force applied to the rear end of the left foot.

As shown in FIG. 4, the second load cell body 232a, the second load cell strain gauge 232b, and the second load cell strain gauge terminal 232c are provided.

The second load cell body 232a has a rectangular block shape, and is bolted to one side of the lower end of the rectangular plate to protect and support each device from external pressure.

The second load cell strain gauge 232b serves to measure the change in stress of the foot force applied to the rear end of the left foot as a change in electric resistance value. It is constructed by incorporating an electrical resistor onto a thin film.

The second load cell strain gauge terminal 232c is connected to the data line unit and serves to transfer the actuation data for the left foot rear end measured by the second load cell strain gauge to the data line unit.

The third load cell 233 serves to detect and measure the force applied to the right power generating end.

As shown in FIG. 4, it is composed of a third load cell body 233a, a third load cell strain gauge 233b, and a third load cell strain gauge terminal 233c.

The third load cell body 233a has a rectangular block shape, and is bolted to one side of the lower end of the square plate to protect and support each device from external pressure.

The third load cell strain gauge 233b serves to measure a change in stress on the force applied to the right power generating end as a change in electric resistance. It is constructed by incorporating an electrical resistor onto a thin film.

The third load cell strain gauge terminal 233c is connected to the data line unit and serves to transfer the actuation data for the right power generation end measured by the third load cell strain gauge to the data line unit.

The fourth load cell 234 serves to detect and measure the force applied to the rear end of the right foot.

As shown in FIG. 4, it is composed of a fourth load cell body 234a, a fourth load cell strain gauge 234b, and a fourth load cell strain gauge terminal 234c.

The fourth load cell body 234a has a rectangular block shape, and is bolted to one side of the lower end of the rectangular plate to protect and support each device from external pressure.

The fourth load cell strain gauge 234b serves to measure the change in stress of the foot force applied to the rear end of the right foot as a change in electric resistance value. It is constructed by incorporating an electrical resistor onto a thin film.

The fourth load cell strain gauge terminal 234c is connected to the data line unit and serves to transfer the actuation data for the right foot rear end measured by the fourth load cell strain gauge to the data line unit.

As shown in FIG. 12, the force sensing load cell 230 including the first load cell 231, the second load cell 232, the third load cell 233, and the fourth load cell 234 has a cross reference point setting unit. Left foot front end receives a lot of set foot through, left foot rear end, right foot front end, right foot rear end is installed 1: 1.

Here, the left foot front end, the left foot rear end, the right foot front end, the right foot rear end receiving a lot of foot force set through the cross reference point setting unit are as follows.

First, the square plate according to the present invention is divided into four independent quadrangular shapes and configured to accurately receive and analyze sensor data of each of four channels.

In addition, the four independent rectangular plates, which consist of the left foot front end, the left foot rear end, the right foot front end, and the right foot front end, are separated into cross shapes, respectively, and the size of the front end having a large area and the rear end having a small area is considered in consideration of the area ratio of the foot. Otherwise it is configured to receive precise data.

As shown in FIG. 12, F1 represents a first load cell, F2 represents a third load cell, F3 represents a second load cell, and F4 represents a fourth load cell.

First, the left-right displacement (COPml) of the four-channel pressure center is calculated through the left-right displacement formula as shown in Equation 1 below.

In this case, Fr represents the force in the vertical direction of the right foot plus F2 (foot force measured at the third load cell) and F4 (foot force measured at the fourth load cell), and Fl is F1 (measured at the first load cell). Left foot end) and F2 (left foot end foot measured in the second load cell) plus the vertical force of the left foot.

In addition, Mml represents the sum of the moments with respect to the left-right pressure center, and Dml represents the left-right balance center of the distance between the front and rear lead lines.

When the left-right displacement (COPml) of the four-channel pressure center calculated in Equation 1 is summarized as Equation 2 below.

Second, the before-and-after displacement of the four-channel pressure center (COPap) is calculated through the before-and-after displacement formula as shown in Equation 3 below.

At this time, Fa denotes the force in the horizontal direction of the front end plus F1 (force of the left power generation stage measured in the first load cell) and F2 (force of the right power generation stage measured in the third load cell), and Fp denotes F3 (in the second load cell). The measured force of the rear foot of the left foot) and F4 (the foot of the right foot of the right foot measured in the fourth load cell) are added to indicate the horizontal force of the rear end.

In addition, the map represents the sum of the moments with respect to the front-rear pressure centers, and Dap represents the front-back balance centers of the distances between the left-right lead lines.

If the rear-end displacement (COPap) of the four-channel pressure center calculated in Equation 3 is summarized as Equation 4 below.

As such, the force sensing load cell 230 including the first load cell 231, the second load cell 232, the third load cell 233, and the fourth load cell 234 has a left-right displacement of the four-channel pressure center (COPml). ) And the first load cell 231, the second load cell 232, and the first load cell 231, the second load cell 231 and the second load cell COPap. Intensity data and direction data of the foot force measured by the three load cells 233 and the fourth load cell 234 are converted into four channel measurement data and transmitted to the main controller through the data line unit.

Fourth, the data line unit 240 according to the present invention will be described.

The data line unit 240 transmits four-channel measurement data measured from the force sensing load cell to the main controller by wire.

Next, the main controller 300 according to the present invention will be described.

The main controller unit 300 receives sensing values before and after the user's left foot and before and after the user's right foot from the four-channel force sensing type force plate as four channels, amplifies and passes the user's left foot on the screen through 16-bit resolution. After expressing four-channel measurement data of the force applied before and after the user's right foot, the displayed four-channel measurement data and the start point setting data transmitted from the start setting band are transmitted to the smart device through the local area network. .

As shown in FIG. 5, the sensor input unit 310, the amplifying unit 320, the AD converter unit 330, the microcomputer unit 340, the short range wireless communication module 350, and the display unit 360 are configured. .

First, the sensor input unit 310 according to the present invention will be described.

The sensor input unit 310 receives a sensing value of four channels before and after the user's left foot and the user's right foot from the four-channel force sensing force plate.

As shown in FIG. 6, the first sensor input unit 311, the second sensor input unit 312, the third sensor input unit 313, and the fourth sensor input unit 314 are configured.

The first sensor input unit 311 receives a foot force sensing value of the left power generation end sensed from the first load cell and transfers it to the first amplifier.

The second sensor input unit 312 receives a foot force sensing value of the left foot rear end sensed by the second load cell and transfers the foot sensing value to the second amplifier.

The third sensor input unit 313 receives a foot force sensing value of the right power generating end sensed from the third load cell and transmits it to the third amplifier.

The fourth sensor input unit 314 receives a foot force sensing value of the right foot rear end sensed by the fourth load cell and transmits the detected foot value to the fourth amplifier.

Second, the amplifier 320 according to the present invention will be described.

The amplifier 320 amplifies the sensing value input from the sensor input unit.

As shown in FIG. 6, the first amplifier 321, the second amplifier 322, the third amplifier 323, and the fourth amplifier 324 are configured.

The first amplifier 321 amplifies the force sensing value of the left power generation end received from the first sensor input unit.

As shown in FIG. 6, this includes a first a OP amplifier 321a, a first b OP amplifier 321b, and a first c OP amplifier 321c.

In addition, a first variable resistor 321d for adjusting the sensitivity and the offset of the force sensing value of the left power generation end received from the first sensor input part is included at one side of the positive terminal of the 1c OP amp.

The second amplifier 322 amplifies the foot force sensing value of the rear end of the left foot received from the second sensor input unit.

As shown in FIG. 6, it is composed of a 2a OP amplifier 322a, a 2b OP amplifier 322b, and a 2c OP amplifier 322c.

In addition, a second variable resistor 322d for adjusting the sensitivity and the offset of the force sensing value of the left rear end of the left foot received from the second sensor input unit is included at one side of the positive terminal of the second c OP amplifier.

The third amplifier 323 amplifies the force sensing value of the right power generation end received from the third sensor input unit.

As shown in FIG. 6, this includes a 3a OP amplifier 323a, a 3b OP amplifier 323b, and a 3c OP amplifier 323c.

In addition, a third variable resistor 323d for adjusting the sensitivity and the offset of the force sensing value of the right power generation end received from the third sensor input part is included at one side of the (+) terminal of the 3c OP amplifier.

The fourth amplifier 324 amplifies the force sensing value of the rear end of the right foot received from the fourth sensor input unit.

This is composed of a 4a OP amplifier 324a, a 4b OP amplifier 324b, and a 4c OP amplifier 324c.

In addition, a fourth variable resistor 324d for adjusting the sensitivity and the offset of the force sensing value of the right rear end of the right foot received from the fourth sensor input unit is included at one side of the positive terminal of the fourth c OP amplifier.

Third, the AD converter unit 330 according to the present invention will be described.

The AD converter 330 converts the analog signal of the sensing value amplified by the amplifier into a digital signal through 16-bit resolution.

It is available in a 2.0 x 1.5 x 0.4mm (width x height x height) lead-free QFN package and consists of a 16-bit analog-to-digital converter (ADC) ADS1115.

Here, the ADS1115 performs conversion at a programmable sampling rate of up to 860SPS, consumes only 150A (nominal) supply current, and operates at as low as 2V.

That is, as shown in FIG. 6, the data line unit is connected to the first analog input terminal AD0, and the force sensing value of the left power generation terminal sensed from the first load cell is input, and the data is input to the second analog input terminal AD1. When the line part is connected, the foot sensing value of the left foot end sensed from the second load cell is input, the data sensing line part is connected to the third analog input terminal AD3, and the foot sensing value of the right power generating end sensed from the third load cell is input. The data line part is connected to the fourth analog input terminal AD4 to input the foot sensing value of the right foot rear end sensed from the fourth load cell, and the 4-channel measurement with 16-bit resolution by connecting the input terminal PD4_IC1 of the microcomputer to the digital input terminal ADDR. The data is input to the microcomputer unit, and the digital output terminal RDY is connected to the output terminal PD5_XCK1 of the microcomputer unit to input 16-bit resolution 4-channel measurement data. Fur compensation and outputs an output signal, and a microcomputer portion PD1_SDA_INT1 serial data terminal coupled to the serial data terminal SDA, a serial clock input terminal is configured by a microcomputer unit connected to the serial clock input terminal PD0_SCL_INT0 SCL.

Fourth, the microcomputer 340 according to the present invention will be described.

The microcomputer 340 calculates the four-channel measurement data converted from the AD converter unit into a digital signal, and converts the force data and direction data of the force applied to the front and rear of the user's left foot and the user's right foot, respectively, to the display unit. It is controlled to be expressed as, and to drive the short-range wireless communication module to transmit the 4 channel measurement data and the start point setting data to the smart device.

It consists of ATMEGA128_16AI.

That is, as shown in FIG. 7, the serial clock input terminal SCL of the AD converter unit is connected to the serial clock input terminal PD0_SCL_INT0, and the serial data terminal SDA of the AD converter unit 330 is connected to the serial data terminal PD1_SDA_INT1. While the digital input terminal ADDR of the AD converter unit 330 is connected to the input terminal PD4_IC1, four-channel measurement data with 16 bits of resolution is input, and the digital output terminal RDY of the AD converter unit is connected to the output terminal PD5_XCK1 with 16 bits of resolution. Outputs the digital compensation output signal for inputting the four-channel measurement data, and transmits the TX terminal of the Android Bluetooth module 352 through the connection connector 351 for the wireless communication module of the short range wireless communication module 350 to the receiving terminal PD2_RXD1_INT2. Is connected to the external command signal received from the Android Bluetooth module 352 of the short-range wireless communication module 350 is received by the microcomputer, and transmitted Receiving terminal RX of the Android Bluetooth module 352 is connected to the wireless communication module 350 of the short range wireless communication module 350 via the terminal PD3_TXD1_INT3 to transmit 4-channel measurement data and start point setting data to the Android Bluetooth module 352. In addition, the transmission terminal TX of the USB data communication module 341 is connected to the USB data receiving terminal PE0_RXD0_PD1 so that an external command signal received from the USB data communication module 341 is received by the microcomputer, and the USB data communication terminal PE1_TXD0_PD0 is connected. The receiving terminal RX of the module 341 is connected to transmit 4 channel measurement data and start point setting data to the USB data communication module, and the display unit 360 is connected to the output terminals PA0_AD0 to PA7_AD7 so that the front and rear of the user's left foot and the user's Display of the display unit by setting the strength and direction data of the force applied before and after the right foot to an 8-bit address Is connected to the output terminal PC0_A8 to PC7_A15 in real time, and the connection connector 351 for the wireless communication module of the short range wireless communication module 350 is connected, and the 4-channel measurement data and the start point setting data are set to an 8-bit address for output. The battery charging circuit 342 is connected to the power supply terminals VCC1 and VCC2 so that the 4.2V power charged from the battery charging circuit is applied.

Fifth, a short range wireless communication module 350 according to the present invention will be described.

The short range wireless communication module 350 is driven according to the control signal of the microcomputer unit to transmit real time 4 channel measurement data and start point setting data transmitted from the start setting band unit to the smart device through the short range wireless communication network.

It is composed of the Android Bluetooth module FB1555BC (152).

That is, as shown in FIG. 7, the reception terminal PD2_RXD1_INT2 of the microcomputer unit is connected to the transmission terminal TX of the Android Bluetooth module 352 via the wireless communication module connection connector 351 and received from the Android Bluetooth module 352. Receives the command signal to the microcomputer unit and connects the microcom module's transmitter terminal PD3_TXD1_INT3 to the receiving terminal RX of the Android Bluetooth module 352 via the wireless connector. It is configured to transmit the setting data to the four-channel force sensing type smart device application module 400.

Sixth, the display unit 360 according to the present invention will be described.

The display unit 360 plays a role of expressing four-channel measurement data of the foot force applied to the front and rear of the user's left foot and the user's right foot on the screen.

It consists of an LCD monitor window.

Next, a description will be given of the four-channel force sensing type smart device application module 400 according to the present invention.

The four-channel force sensing smart device application module 400 is connected to the main controller unit and the short-range wireless communication network in connection with a smart device consisting of a smart phone, smart TV, smart pad, four channel measurement data transmitted from the main controller unit And start point setting data are continuously analyzed by time and motion, and then converted into measurement spline data from the start point to the end point, and compared with the preset roll model type reference spline data. It controls the notification to the user.

As shown in FIG. 8, the smart device connection setting unit 410, the wireless data receiver 420, the footing activity unit 430, the footing streaming unit 440, and the four-channel seesaw type foot control unit 450 are provided. ), And an event setting unit 460.

First, the smart device connection setting unit 410 according to the present invention will be described.

The smart device connection setting unit 410 is a smart device in the application state in the smart device using an xml-type document containing information about the four-channel force sensing type smart device application and component (activity, content provider) information After interfacing with the main controller through a short-range wireless communication network, which is one of peripheral devices, the controller establishes a connection with the main controller and authorizes the data to be used with the main controller.

This is composed of a connection mode 411 and a permit mode 412, as shown in FIG.

The connection mode 411 plays a role of establishing a connection and initializing communication information between the Android platform of the smart device and the main controller before the Android platform of the smart device requests a service from the main controller.

The connection mode registers the information between the main controller and the Android platform in the connection list, and is configured to communicate with each other based on the registered information.

The allow mode 412 serves to authorize the main controller to freely use the Android platform before the main controller transmits the 4 channel measurement data and the start point setting data to the Android platform of the smart device.

Through the allow mode, the Android platform is configured to create a state for a service and establish a new connection with the main controller unit so that the service can be requested and provided to the main controller unit.

Second, the wireless data receiver 420 according to the present invention will be described.

The wireless data receiver 420 receives and stores four channel measurement data and a start point setting data from the main controller unit when a connection between the four channel force sensing type smart device application and the main controller unit is established through the smart device connection setting unit. It plays a role.

Third, the power activity unit 430 according to the present invention will be described.

The activity activity unit 430 is driven according to the control signal of the streaming unit to display a user interface component consisting of a four-channel seesaw content screen and a continuous trajectory graphic screen on a monitor window of a smart device, and displays a system or a user. It calculates the response of and controls 1: 1.

In other words, the Android platform maintains a history stack of all force activities created within a 4-channel force-sensitive smart device application.

As shown in FIG. 10, this includes an oncrete portion 431, an ounce tart portion 432, an onset portion 433, an on-pose portion 434, and an on-stop portion 435.

The on-creation unit (OnCreate) 431 is a function that is called for the first time when the force activity is created, and serves to initialize resources.

The OnStart 432 indicates that the activity is called when the user is ready to show it to the user.

The OnResume 433 is a foot activity is shown to the user and serves to process the user's input.

The OnPause unit 434 stores data before losing focus and resuming a previous force activity, and stops a user interface component function consisting of a four-channel seesaw content screen and a continuous trajectory graphic screen, It stops the work that consumes the CPU of the device.

The OnStop 435 serves to stop the activating activity from being seen by the user anymore.

Fourth, the power streaming unit 440 according to the present invention will be described.

The power streaming unit 440 reproduces four-channel measurement data received from the wireless data receiver by a four-channel seesaw content screen, a continuous trajectory graphic screen, and a voice toward the monitor window and the speaker of the smart device under the control of the four-channel seesaw type foot control unit. It plays a role.

It is implemented as a method in a Java class called RobotClient that requests a service from the Android platform to the main controller.

When the streaming service url is obtained from the main controller after the service request, the streaming service is provided through the layout defined in the activity.

Internally, the message marshaling and the communication part with the main controller part are configured to be implemented as "C" libraries.

For example, "int set_stream (VideoView scr, MediaController ctl)".

Here, VideoView scr refers to an object to output 4 channel seesaw content screen, continuous trajectory graphic screen and voice, and MediaController ctl refers to an object to control 4 channel seesaw content screen, continuous trajectory graphic screen and voice.

In the present invention, according to the streaming request of the first Android platform client, the powering streaming unit is configured to respond with a streaming service url.

In addition to limiting the number of clients that can connect to the 4-channel seesaw foot control unit for QOS (Quality of Service) with limited system resources, and the shutdown of the 4-channel seesaw foot control unit when no client uses streaming service. It is configured.

Fifth, the four-channel seesaw type force control part 450 according to the present invention will be described.

The four-channel seesaw type force control unit 450 retrieves four-channel measurement data from the wireless data receiver, and the left foot shear motion from the start point set point from the start point set point data to the end point after the set time (0.3 to 3 seconds) has elapsed. Through the 4 channels of left foot rear motion, right foot front motion and right foot rear motion, the strength data and direction data of the foot force are calculated and controlled in the form of continuous trajectory, and the continuous trajectory data is transmitted to the foot activity part. It analyzes the whole movement of the body by motion model through the role model continuous trajectory graph and the current continuous trajectory graph, and informs the user with sound effect when it is within the reference range value and stores it in the memory of the smart device. .

As shown in FIG. 11, the continuous trajectory algorithm engine 451 and the continuous trajectory comparison analysis unit 452 are configured.

As shown in FIG. 13, the continuous trajectory algorithm engine 451 has a left foot front end motion and a left foot rear end motion from the start point time point set from the start point setting data to the end time after the set time (0.3 to 3 seconds) has passed. It is a function to control and control the strength data and direction data of the foot force in the form of continuous trajectory through 4 channels of right foot front motion and right foot rear motion.

In order to perform efficient clustering of the trajectories, the force data and direction data of the foot force are expressed in a grid form through four channels of left foot front motion, left foot rear motion, right foot front motion, and right foot rear motion. By doing this, each trajectory is clustered using NM (Normalized Match).

When clustering is completed, each cluster sets an NM threshold (maximum NM value up to the kth) and classifies it into a low cluster and a high cluster based on the threshold.

Subsequently, the pattern in the cluster is extracted using a method of sequentially approaching the pattern having the smallest length to the pattern having the largest length.

Starting with the shortest pattern, the pattern is taken into account in snapshot units and time, and the patterns having similar trajectories are integrated and operated in a continuous trajectory form.

The continuous trajectory comparison analysis unit 452 plays a role of comparing the overall movement of the body through the user's foot force by motion section through the roll model continuous trajectory graph and the current continuous trajectory graph.

This saves the professional model's role model continuous trajectory graph and synchronizes the current continuous trajectory graph to drive the training mode so that the position is close to the role model continuous trajectory graph.

Sixth, the event setting unit 460 according to the present invention will be described.

The event setting unit 460 is a user interface on the smart device screen in which the user's movement is expressed in real time through the smart device handler unit, the start button, the drive button, the save button, the history button, the range value control button, and the training mode button. After activation by (User Interface), it plays the role of setting the event value to the activated button to drive the event.

Hereinafter, a detailed operation process of the foot force real-time analysis device according to the user's movement through the four-channel sensing force plate according to the present invention will be described.

First, the user climbs on the four-channel force sensing type force plate 200 to position the user's left power generation and the right foot forward and backward on the cross reference point setting unit.

Next, the start point for the change in the user's foot force on the 4-channel force sensing type force plate through the start setting band unit 100 is set.

Next, the change in the foot force applied to the front and rear of the user's left foot and the user's right foot before and after the user's left foot on the square plate through the four-channel force-sensing force plate 200 is measured by measuring the four channels.

Next, under the control of the main controller 300, the four-channel force sensing type force plate receives the sensing values before and after the user's left foot and before and after the user's right foot in four channels, and amplifies the user on the screen through 16-bit resolution. Four-channel measurement data of the foot force applied before and after the left foot and the user's right foot are displayed.

Next, the 4-channel measurement data expressed by the main controller unit and the start point setting data transmitted from the start setting band unit are transmitted to the smart device through the short range wireless communication network.

Next, in connection with a smart device consisting of a smart phone, a smart TV, and a smart pad under the control of the four-channel power sensing smart device application module, the main controller unit is connected to the local area wireless communication network.

Finally, four channel measurement data and start point setting data transmitted from the main controller unit are continuously analyzed by time and motion under the control of the four-channel force sensing type smart device application module and converted into measurement spline data from the start point to the endpoint. After it is set, it is notified to the user through the sound effect and graphic visual effect if it is within the reference value range compared with the preset roll model type reference spline data.

14 is an embodiment showing that the real-time analysis device according to the user's motion through the four-channel sensing force plate according to the present invention to apply the golf swing motion to provide the strength data and the direction data in real time in the field It relates to an exemplary view, Figure 15 is applied to the real-time analysis device according to the user's movement through the four-channel sensing force plate according to the present invention to the archery swing motion to provide the strength data and the direction data in real time in the field FIG. 16 is a view illustrating an embodiment of the present invention, and FIG. 16 applies a real-time analysis device according to a user's movement through a four-channel sensing force plate according to the present invention to a baseball swing motion, thereby applying force data and direction data of the force. Relates to an embodiment illustrating providing in real time in FIG. 17, FIG. A foot force by applying real-time analysis device according to the user through the force-sensing plate moves in a fitness exercise relates to an example showing examples to provide in real time the intensity data and direction data of the foot force on the spot.

As a result, the user can be provided with real-time accurate posture analysis and posture correction on the field in real time, how much force should be applied before and after the left and right feet, and which direction the force should be applied. It can improve performance and exercise acquisition rate by 70%.

1: Foot force analysis device 100: Start setting band part
110: band body 120: power supply
130: 3-axis gyro sensor 140: sensor control unit
150: wireless communication module
200: 4-channel force sensing type force plate 300: main controller
400: 4 channel force sensing type smart device application module

Claims (7)

It is attached to user's wrist and consists of band body, power unit, 3-axis gyro sensor, sensor control unit, and wireless communication module. Start setting band unit 100 to set the X, Y, Z vector value when the user takes the golf club while holding the take-up (TAKE AWAY),
Four-channel force sensing type force plate 200 formed in the shape of a square plate, to detect and measure the change in the foot force applied to the front and rear of the user's left foot before and after the user's right foot in four channels, and
Foot force applied before and after the user's left foot and the user's right foot on the screen by amplifying and receiving the sensing values of the user's left foot and the user's right foot before and after from the four-channel foot force detecting force plate through 4 channels. After expressing the four channel measurement data of the main controller unit 300 for transmitting the displayed four-channel measurement data and the start point setting data transmitted from the start setting band unit to the smart device through a short-range wireless communication network,
It is connected to the main controller unit and the short-range wireless communication network by connecting with smart devices such as smart phones, smart TVs and smart pads, and continuously analyzes 4 channel measurement data and start point setting data transmitted from the main controller unit by time and motion operation. Four-channel force sensing smart device application that converts the measured spline data from the start point to the endpoint and then informs the user through sound effect and graphic visual effect when it is within the standard value range compared with the preset roll model type reference spline data. Footing real-time analysis device according to the user's movement through the four-channel sensing force plate, characterized in that consisting of the module 400.
The method of claim 1, wherein the four-channel force sensing type force plate 200
It is formed in four independent quadrangles to support the user to rise and at the same time, square plate 210 to protect each device from external pressure,
Located at the bottom of the square plate, it is formed in a cross shape around the main center point of the square plate, so that the four force-sensing load cells for detecting the foot force before and after the user's left foot and the user's right foot are installed in a position receiving a lot of foot force. Cross-shaped reference point setting unit 220 for setting a reference point,
Foot detection type load cell that is installed 1: 1 in front of left foot, left foot, right foot, right foot, and right foot after receiving a lot of set foot through the cross reference point setting unit 230,
Footing real-time analysis device according to the user's movement through the four-channel sensing force plate, characterized in that consisting of the data line unit 240 for transmitting the four-channel measurement data measured from the force-sensitive load cell to the main controller by wire.
The method of claim 2, wherein the force-sensitive load cell 230
A first load cell 231 for detecting and measuring a force applied to the left power generating end;
A second load cell 232 for detecting and measuring the force applied to the rear end of the left foot,
A third load cell 233 for detecting and measuring a force applied to the right power generating end;
Foot force real-time analysis device according to the user's movement through the four-channel sensing force plate, characterized in that consisting of a fourth load cell 234 for detecting and measuring the force applied to the rear end of the right foot.
The method of claim 3, wherein the first load cell 231, the second load cell 232, the third load cell 233, the fourth load cell 234 is
4, characterized in that it is installed at the site of high pressure through the cross-reference point setting unit, using the left-right displacement (COPml) of the four-channel pressure center and the front-rear displacement (COPap) of the four-channel pressure center as reference values. Foot force real-time analysis device according to the user's movement through the channel-sensitive force plate.
The method of claim 1, wherein the main controller 300 is
Sensor input unit 310 for receiving the sensing value of the front and rear of the user's left foot before and after the user's right foot from the four-channel foot force-sensitive force plate in four channels,
An amplifier 320 for amplifying a sensing value input from the sensor input unit;
An AD converter 330 for converting the analog signal of the sensed value amplified by the amplifier into a digital signal through 16-bit resolution;
It calculates 4-channel measurement data converted into digital signal from AD converter and converts it into intensity data and direction data of foot force applied before and after the user's left foot and before and after the user's right foot. A microcomputer unit 340 for driving the wireless communication module to transmit 4 channel measurement data and start point setting data to a smart device;
Short-range wireless communication module 350 is driven according to the control signal of the microcomputer unit and transmits the 4-channel measurement data and the start point setting data transmitted from the start setting band unit to the smart device in real time through the short range wireless communication network. Foot force real-time analysis device according to the user's movement through the four-channel sensing force plate.
The method of claim 5, wherein the microcomputer 340 is
The serial clock input terminal SCL of the AD converter unit is connected to the serial clock input terminal PD0_SCL_INT0, and the serial data terminal SDA of the AD converter unit is connected to the serial data terminal PD1_SDA_INT1 for serial data communication. Is connected to input 16-bit resolution 4-channel measurement data, and digital output terminal RDY of AD converter is connected to output terminal PD5_XCK1 to output digital compensation output signal to input 16-bit resolution 4-channel measurement data. Transmit terminal TX of short-range wireless communication module is connected to terminal PD2_RXD1_INT2 through wireless connector, and external command signal received from short-range wireless communication module is received by microcomputer unit, and wireless terminal is connected to PD3_TXD1_INT3 through connector. Near field wireless communication module RX is connected It transmits 4 channel measurement data and start point setting data to the communication module.The external command signal received from the USB data communication module is received to the microcomputer by connecting the TX terminal of the USB data communication module to the USB data receiving terminal PE0_RXD0_PD1. Receive terminal RX of the USB data communication module is connected to the PE1_TXD0_PD0 data transmission terminal to transmit 4-channel measurement data and start point setting data to the USB data communication module, and the display is connected to the output terminals PA0_AD0 to PA7_AD7. Set the strength and direction data of the force applied to the front and rear of the right foot to 8-bit address and display it on the display screen in real time, and the connection connector for wireless communication module is connected to the output terminals PC0_A8 ~ PC7_A15, and 4 channel measurement data And start point setting data to 8-bit address And, a power supply terminal VCC1, VCC2 is a battery charging circuit connected to the foot force real-time analysis device according to the user's motion through the 4-channel-sensitive force plate being configured such that the charging power from the battery charging circuit is 4.2V.
According to claim 1, wherein the four-channel force sensing type smart device application module 400
By using xml document that contains information about 4-channel power detection smart device application and component (activity, content provider) information, it is applied to the local area wireless communication network, which is one of the peripheral devices of smart device, when it is applied in the smart device. After interfacing with the main controller unit through the smart controller connection setting unit 410, which establishes a connection with the main controller unit and authorizes the use of data with the main controller unit,
When the connection between the 4-channel force sensing type smart device application and the main controller unit is established through the smart device connection setting unit, the wireless data receiver 420 receives and stores 4-channel measurement data and start point setting data from the main controller unit. ,
Driven according to the control signal of the streaming unit, the user interface component consisting of 4 channel seesaw content screen and continuous trajectory graphic screen is displayed on the monitor window of the smart device, and the system or user response is calculated to control 1: 1. An activity unit 430,
Footstream streaming unit 440 for real-time playback of 4-channel measurement data received from the wireless data receiver to a 4-channel seesaw content screen, continuous trajectory graphic screen, and voice to the monitor window and the speaker of the smart device under the control of the 4-channel seesaw type foot control unit. ,
Four-channel measurement data is imported from the wireless data receiver, and the left foot front end motion, left foot rear end motion, right foot front end motion, from the start point set from the start point setting data to the end point after the set time (0.3 to 3 seconds) Through the four channels of the rear end motion of the right foot, the operation of the strength data and the direction data is controlled in the form of a continuous trajectory to transmit the continuous trajectory data to the foot activity unit, and the whole body movement through the user's foot is transmitted to the roll model type continuous trajectory graph. Four channel seesaw type force control unit 450 for comparing and analyzing each motion section through the current continuous trajectory graph, and notifying the user with sound effects when it is within the reference range value and storing it in the memory of the smart device.
Activate the start button, drive button, save button, history button, range value control button, and training mode button on the smart device screen where the user's movements are displayed in real time through the smart device handler. Footing real-time analysis device according to the movement of the user through the four-channel sensing force plate, characterized in that consisting of an event setting unit 460 to drive the event by setting the event value to the activated button.

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