KR100398822B1 - Load Data Transmitter for Use in System for Measuring Distribution of Dynamic Load in Athletic Sports - Google Patents

Abstract

The present invention is installed so as to be replaceable to the sole of the user can be easily replaced as necessary, according to the user's continuous motion changes precisely the distribution of the load applied to the front and rear of the feet and the change in the continuous operating load The present invention relates to a load data transmission device for transmitting load data measured by an easy-to-measure operation load distribution measurement system.

The present invention provides a load data transmission apparatus for an operation load distribution measurement system of an exercise motion for wirelessly detecting and transmitting an operation load corresponding to an exercise motion of a user, the apparatus comprising: a substrate detachably coupled to the sole of a user's shoe; A plurality of pressure sensors for detecting a plurality of pressure values embedded in a substrate and proportional to a load applied to each part of a foot during a user's exercise motion, and wireless data by signal processing the pressure values detected from the pressure sensors. Characterized in that it comprises a signal transmitter for transmitting to the receiving device by communication.

Description

Load Data Transmitter for Use in System for Measuring Distribution of Dynamic Load in Athletic Sports}

The present invention relates to a load data transmission device for a motion load distribution measuring system of an athletic motion, and in particular, is installed in the sole of a user's shoe so that it can be easily replaced as needed, and according to the user's continuous motion change The present invention relates to a load data transmitting device for transmitting load data measured by an operating load distribution measuring system by precisely measuring a distribution of loads applied to front and rear portions of a and a continuous change in operating load.

In general, sports, such as golf, baseball, ping-pong, etc., in which continuous athletic motion is performed in a stationary state, a form, in particular, continuous athletic motion is very important. In particular, sports that adults can enjoy as a hobby, such as golf, many people spend a lot of money and time to take the lessons of experts to learn the correct swing posture.

In addition, golf or baseball's famous professional players often fall into a slump, most of which is due to the unintentional change of their swing form, so the videos of their prime time or other good players He is trying to reshape his changed swing form, either by watching videos or comparing and analyzing these videos with his current videos.

Furthermore, in golf, as a part of improving the handyman, a lot of swing and putting exercises and physical training are performed to improve the distance of the drive shot or to move the correct weight necessary to improve the accuracy of the putt.

However, the lessons of such experts are expensive and can take a lot of time because they must go to a specific place such as a golf driving range.

In addition, the method of correcting one's own motion using video is difficult for the general amateur and requires the help of a professional.

Moreover, the above calibration methods are all based on the experience of experts, but are not posture correction based on scientific and quantitative analysis.

In consideration of these problems, the present inventors analyze the distribution of loads applied to the front and rear of both feet and the continuous change of the operating load during various sports operations, and analyze them or perform an ideal exercise motion. In contrast, we have proposed a motion load distribution measurement system of motion motion that can correct one's own motion quickly and effectively by correcting it.

The first and second transmitters used in the measuring system are respectively installed on the insole of the left and right foot shoes of the user, and at least two or more pressures proportional to the load applied to the front and rear portions of the left and right feet during various sports operations of the user. The data is measured and transmitted wirelessly to the receiver of the system main body.

In this case, three piezoelectric piezoelectric elements, which are used as pressure sensors in the first and second transmitters, are respectively installed on the insole of the user's left and right foot shoes, and the pressure data measured from these sensors is transmitted to the main body by signal processing. When the transmitter main body is used inside or outside of the shoe, durability and reliability are inferior, and it becomes difficult for the user to replace the sensor and the transmitter main body conveniently when periodically replacing the sensor damaged by the user's load. .

Therefore, the present invention is conceived in view of the problems of the prior art, the purpose of which is installed so as to replace the shoe sole of the user can be easily replaced as needed, according to the continuous motion change of the user before and after both feet The present invention provides a transmitting device capable of precisely measuring a pressure value corresponding to a load that can indicate a distribution of load applied to a part and a change in a continuous operating load, and transmitting measured data to an operating load distribution measuring system.

1 is a schematic block diagram showing an operating load distribution measuring system of a motion motion including a load data transmission device according to the present invention.

FIG. 2 is a detailed block diagram of a transmitter of the operating load distribution measuring system shown in FIG. 1;

3 is a cross-sectional view of the state in which the transmitter shown in FIG. 1 is attached to a shoe;

4 is a cross-sectional view of a state in which the transmitter is disassembled from the shoe;

5 is a schematic diagram showing a state in which each component of the transmitting device is arranged on a substrate.

* Explanation of Signs of Major Parts of Drawings *

1,2; Shoes 3,4; bottom piece

5; Unit pattern 10,20; Transmitter

11a-11d, 21a-21d; 1st-4th pressure sensor

12a-12d; First to fourth amplifiers 13,33; CPU

14,34; EPROM 15,35; RAM

16,26; RF transmitter 17,31a, 31b; antenna

18,38; A / D 19,29; Signal transmitter

30; Receivers 32a, 32b; RF receiver

36a; Reset switch 36b; Page selector switch

36c; Motion select switch 37; Indicator controller

40; Housing 50; Display

51a-51d, 52a-52d; Load distribution pattern

In order to achieve the above object, the present invention provides a load data transmission apparatus for an operating load distribution measuring system of an athletic motion for wirelessly detecting and transmitting an operating load corresponding to an athletic motion of a user. A plurality of pressure sensors for detecting a plurality of pressure values which are coupled to the substrate, each of which is embedded in the substrate and is proportional to the load applied to each part of the foot during the motion of movement of the user, and the pressure detected from the plurality of pressure sensors The present invention provides a load data transmitting apparatus for a motion load distribution measuring system of an athletic motion, characterized in that it comprises a signal transmitter for signal processing and transmitting the signal to a receiving apparatus by wireless data communication.

In this case, the signal transmitter may amplify a plurality of pressure voltage signals detected from a plurality of pressure sensors, a plurality of amplifiers for correcting the amplified voltage signal, and a plurality of pressure voltage signals received through the plurality of amplifiers. Analog-to-digital converter for converting a digital signal into a digital signal, an RF transmitter for encoding a data to be transmitted and then transmitting a modulated signal to a receiver of a system, and a plurality of digitally converted by wireless data communication by controlling the RF transmitter. And transmission control means for controlling the pressure data in the transmission data format to be transmitted to the receiving apparatus, wherein the RF transmitter is separated from the signal transmitter main body and embedded in the front end of the substrate.

In addition, the substrate is made of the same or similar shape and material as the sole of the user's shoe, the first substrate is embedded with the RF transmitter in the front and the signal transmitter in the rear, and each of the elastic material having excellent durability and the first It is composed of second and third substrates attached to the front and rear floors of the substrate to support the load of the user and at the same time the plurality of pressure sensors are divided and embedded.

Furthermore, the substrate further includes a plurality of fixing bolts, each of which has a front end fastened through a plurality of through holes formed in the first substrate from the second and third substrates, to a plurality of stud nuts embedded in the sole. It is easy to separate and replace the transmitting device from the sole of the shoe.

In addition, data transmission between the transmitter and the receiver is performed by radio frequency (RF) communication or infrared communication.

As described above, in the present invention, the transmission device attached to the user's shoes can be easily replaced as needed, and a plurality of pressure sensors embedded in the substrate are stably supported and at the same time precisely adjust the pressure value corresponding to the load. By measuring and transmitting, the receiving apparatus is used to graphically analyze the distribution of the load applied to the feet according to the user's motion change and the change in the continuous operating load based on the user's motion.

(Example)

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a schematic block diagram showing an operating load distribution measuring system of an exercise motion including a load data transmitting apparatus according to the present invention. FIGS. 2A and 2B are respectively transmitting apparatuses of the operating load distribution measuring system shown in FIG. And a detailed block diagram of a receiver, FIG. 3 is a cross-sectional view of a state in which the transmitter shown in FIG. 1 is attached to a shoe, FIG. 4 is a cross-sectional view of a state in which the transmitter is disassembled from a shoe, and FIG. 5 is a part of the transmitter. It is a schematic diagram which shows the state arrange | positioned at this board | substrate.

First, referring to Figures 1 to 3, the operating load distribution measurement system of the exercise motion to which the transmission device according to the present invention is applied is detachably installed on the sole (3, 4) of both shoes (1, 2) of the user First and for the user to measure the pressure value in proportion to the load applied to the front and rear of the feet during the various sports operations, such as golf, baseball, table tennis, etc., the drive shot operation of the golf, and to transmit by wireless or infrared The second transmission device 10, 20 and the training coach, etc., worn within a certain distance from the first and second transmission devices 10, 20, for example, worn on the user's waistband or pocket or adjacent to the user. It consists of a receiving device 30 for processing the received radio or infrared signal to graphically display the load value applied to the front and rear of both feet during the swing operation of the user to the display device 50 such as LCD.

The first and second transmitters 10 and 20 have the same circuit and structure as shown in FIGS. 1 to 3. Therefore, in the following description, only the first transmitter 10 installed in the sole 3 of the left shoe 1 is used except for special cases for the convenience of understanding and simplicity of explanation.

The first transmission device 10 has the same shape as that of the user's shoe sole 3 when viewed in a structural manner, and is made of soft rubber of the same or similar material, and has high trackability to deformation of the sole 3, which will be described later. The flexible first substrate 71 having the RF transmitter 16 and the signal transmitter 19 including the power supply battery respectively embedded in front and rear, and the front and rear bottoms of the flexible substrate 71 respectively have durability. It is made of an elastic material such as polyurethane, and is attached to support the load of the user and form a spike structure at the bottom as shown in FIG. 6 so as to maintain a posture during an exercise motion and four first to fourth pressure sensors therein ( 11a-11d) is composed of second and third substrates 72 and 73 embedded therein.

In addition, the first and second transmitters 10 and 20 are embedded in the big toe part, the little toe part, and both the heel parts, respectively, as shown in FIGS. 1 and 2A. Detected from the first to fourth pressure sensors 11a-11d and 21a-21d and the first to fourth pressure sensors 11a-11d and 21a-21d, which are respectively disposed two at the front and the rear to detect the value. And the signal transmitters 19 and 29 which signal-process the pressure value and transmit the same pressure value to the receiving device 30 by serial communication.

The first to fourth pressure sensors 11a-11d and 21a-21d may be configured using piezoelectric piezoelectric elements, respectively, and the user may back swing a golf club in an address posture, for example, to drive a drive shot. When the load applied to both feet, more specifically, the big toe part, the little toe part, and both the heel part in accordance with the movement of the center of gravity of the body that is continuously made when downswing to hit the golf ball. Each of the pressure sensors 11a-11d and 21a-21d detects a pressure value proportional to the load and outputs it as an electrical analog voltage signal.

The signal transmitter 19 installed on the sole 3 of the left shoe 1 amplifies the pressure voltage signal detected from the first to fourth pressure sensors 11a-11d, as shown in FIG. 2A, and the amplified voltage. Analog to digital converter for converting the pressure voltage signal received through the first to fourth amplifiers 12a-12d for correcting the signal and the first to fourth amplifiers 12a-12d to a digital signal ( A / D) 18, a RAM 15 for temporarily storing digitally converted pressure data, and an EPROM 14 for storing a control program for controlling signal processing of a transmitting apparatus and performance of wireless data communication. And the first to fourth pressure sensors 11a through the A / D 18 in accordance with the control program stored in the EPROM 14 incorporating the A / D 18, the EPROM 14 and the RAM 15. -11d) voltage signals are sequentially A / D converted and stored in RAM 15, and then the RF transmitter 16 is initialized by serial data communication. A microprocessor (CPU) 13 for controlling the transmitting device to edit and transmit the pressure data in the transmission data format to the receiving device 30, and the high frequency signal modulated after encoding the transmission data under the control of the CPU 13 It includes an RF transmitter 16 for transmitting the radio wirelessly through the antenna 17.

The embodiment shown in FIG. 2A shows an example in which the CPU 13 has a compact structure in which the A / D 18, the EPROM 14, and the RAM 15 are built in, but these are configured as external as necessary. It is also possible.

In addition, the RF transmitter 16 is a continuous variable slope delta modulation according to AM (amplitude modulation), frequency shift keying (FSK), FM (phase modulation), PM (phase modulation), or Bluetooth (Bluetooth) method It can also be modulated by any kind of encoding method such as) and transmitted, and the antenna 17 can be configured as a transmission coil using a separate external loop antenna or without a separate external antenna.

In addition, although the embodiment shown in FIGS. 2A and 2B illustrates the use of radio wave communication having a long transmission distance and no directivity for data communication between the transmitter and the receiver, infrared light according to an infrared data association (IrDA) method is used. It is of course also possible to use a wireless communication interface. In this case, however, the transmission distance is short and has a directivity of 30 degrees or less. The difference is that an LED for radiating infrared rays is provided in the RF transmitter 16 instead of the antenna 17.

The first transmitter 10 for the left foot constitutes a first channel CH1 for wireless data communication, and the second transmitter 20 for the right foot constitutes a second channel CH2 for wireless data communication and receives It is desirable to have a suitable channel space between the channels to prevent interference of the first and second RF receivers 32a, 32b of the device 30. In FIG. 1, reference numeral 26 denotes an RF transmitter.

Meanwhile, the receiver 30 serially modulates the modulated radio frequency (RF) signals transmitted from the first and second channels CH1 and CH2 of the first and second transmitters 10 and 20, as shown in FIGS. 1 and 2B. Receives through the antennas 31a and 31b through serial communication, converts them into low frequency signals through multiple stages of frequency downconverting, and outputs digital data or analog signals in a demodulation scheme corresponding to the modulation scheme of the transmitter. Digital to analog converters (D / A) for converting analog signals to digital signals when the first and second RF receivers 32a and 32b and the first and second RF receivers 32a and 32b are output. (38), RAM 35 for temporarily storing five times swing motion data, for example, the pressure data of the digitally converted first and second channels CH1 and CH2, and the signal processing of the receiver. A control program for controlling the performance of wireless data communication with The first and second channels CH1 and CH2 by the A / D 38 in accordance with a control program stored in the EPROM 34 and having an EPROM 34, an A / D 38 and an EPROM 34 therein. A / D conversion of the pressure data is stored sequentially in the RAM 35, and the pressure data stored in the RAM 35 is signal-processed according to the operation of the selection switches 36b and 36c to the display device 50. The distribution of loads on the front (i.e., big toe and little toe) and rear (i.e., both heel) of each of the left and right feet is determined by the size of the load. A microprocessor (CPU) that generates an output signal to the indicator controller 37 so as to graphically display the load distribution patterns 51a-51d and 52a-52d and at the same time display the distribution ratio of the load on the left and right feet. 33 and a ROM incorporating a plurality of pattern data having different sizes of the unit pattern 5 in the same pattern shape. And a display controller 37 for outputting graphic data to the display device 50 to display the load distributions applied to the front and rear of the left and right feet according to the output signal of the CPU 33 in a pattern proportional to the magnitude of the load. It includes.

In addition, the receiving device 30 has a display device 50 disposed on the front of the housing 40, and three reset switches, page selection switches, and motion selection switches 36a-36c and a power switch (ON) at the lower end thereof. / OFF) 45 is arranged.

The reset switch (RESET) 36a is a switch for clearing the RAM 35 to initialize the motion data value of each page, and the page select switch (PAGE) 36b is an example. For example, a switch for sequentially selecting five pages corresponding to five swing motions, and a motion selection switch (MOTION) 36c may include three detailed postures, for example, an address posture, for the operation of each selected swing motion. It is a switch for selecting by dividing the golf ball by the moment of impact by the back swing posture, and down swing.

Data of pages 1 to 5 corresponding to five swing motions are displayed according to the operation of the page selector switch 36b, and address posture, backswing attitude, and, according to the operation of the motion selector switch 36c on each page. Data of any one of motions 1 to 3 corresponding to the moment when the golf ball is impacted by the down swing is displayed.

For example, the RF transmitter 16 of the transmitters 10 and 20 and the first and second receivers 32a and 32b of the receiver 30 are, for example, the TXH series transceivers of JS TECH. It can also be configured using the module "TXH-900M". In this case, the operating frequency is in the 902-928MHz band, the operating range is 1/4 mile, and each can be configured as a single chip.

The RAM 35 may be configured as a five-stage shift register to record five swing motions. If the data for the sixth swing motion is input and stored, the first swing motion data stored first is It is deleted. That is, data is recorded in a first-in first-out (FIFO) manner.

In the present invention, pressure data for the three most important postures, for example, the address posture, the backswing posture, and the golf ball impact posture, are automatically extracted from the continuously input pressure data.

That is, the address posture is extracted data when the load applied to both feet is set equally by 1/2, in this case, the first to fourth pressure sensors of each of the first and second transmitters 10 and 20 ( The sum of the four pressure voltage signals P1-P4 and P11-P14 detected from 11a-11d, 21a-21d (P _L = P1 + P2 + P3 + P4, P _R = P11 + P12 + P13 + P14) Are obtained identically to each other. Therefore, the load on the left foot and the right foot is equally applied by 50%.

Afterwards, the load on the left and right feet is normally 40:60, and the optimal load is recognized when the load on the right foot is at its maximum, that is, when the peak value P _R is the peak value. To extract the pressure data.

In addition, the load on the left foot and the right foot at the impact of the golf ball changes at a ratio of 70:30, and when the load on the left foot is at the maximum value, that is, when the addition value PL is at the peak value, it is recognized as the moment of impact at this time. Extract the data.

The transmitters 10 and 20 and the receiver 30 of the present invention each include power supply units 60 and 60a for supplying driving voltages using separate batteries.

In the motion load distribution measuring system of the exercise motion configured as described above, it is firstly important to accurately detect the pressure value proportional to the load according to the exercise motion of the user. However, since the first and second transmitters for detecting the pressure value have to withstand the load of the user, it is impossible to use them permanently. Must be replaced.

The first and second transmitters of the present invention considered such an ease of replacement and at the same time considered the correct transmission of the load to the pressure sensor and no abnormality when taking a motion motion while wearing the shoes (1, 2).

3 to 5 will be described in more detail the structure of the first and second transmission apparatus according to the present invention.

The first and second transmitters are each made of the same material as the sole so that the first substrate 71 does not float on the sole 3 of the shoe 1, and the middle portion is inclined to be the same as the sole, and the rear portion is The lower end is formed to have the same height as the lower end of the front.

In this case, as shown in FIG. 5, the RF transmitter 16 is preferably embedded in the center of the front, and the signal transmitter 19 including the power supply battery is embedded in the center of the rear, respectively.

In addition, first and second pressure sensors 11a and 11b are embedded in the second substrate 72 integrally fixed to the front lower portion of the first substrate 71, and the first substrate 71 is embedded therein. The third and fourth pressure sensors 11c and 11d are embedded in the form of a plate in the third substrate 73 integrally fixed to the rear lower part of the substrate.

The second and third substrates 72 and 73 and the first substrate 71 have a plurality of through-holes 77 through which the plurality of fixing bolts 74 penetrate partially through the pressure sensor. The sole 3 is embedded with a plurality of stud nuts 76 which are fastened to the threads formed at the ends of the bolts at positions corresponding thereto.

In this case, preferably, the head of the fixing bolt 74 is provided with a recess 77a at the bottom of the through hole 77 to avoid friction with the ground, so that the head of the bolt is positioned inside the recess. It is preferable that a plurality of insulating rings 75 made of a non-conductive material are embedded in the second and third substrates 72 and 73 at portions of the pressure sensors 11a-11d through which 74 passes. In addition, the fixing bolt 74 is advantageous to prevent the loss of the fixing bolt is configured so that the front end portion is caught by the substrate (71-73) is not separated. However, it is not a problem that the fixing bolt is separated from the substrate.

In the above-described embodiment, the first to third substrates 71 to 73 made of different materials are used as the substrate, but the present invention is not limited thereto and may be configured using a material made of the same material as the sole. It is possible. In addition, the signal transmitter 19 including the battery may be installed in the middle portion of the substrate instead of the rear side.

The lower structures of the substrates 72 and 73 can adopt appropriate structures depending on the characteristics of the motion to which the present invention is applied in addition to the spike structures.

Hereinafter, the operation of the transmitting apparatus according to the present invention configured as described above will be described in detail with reference to FIGS. 1 to 5.

The transmission apparatuses 10 and 20 of the present invention are used to be detachably installed on the soles 3 and 4 of the user shoes 1 and 2. That is, when the fixing bolt 74 of the transmission device (10, 20) is screwed to the stud nut 76 of the sole (3, 4) as shown in Figure 4, the transmission device (10, 20) is a shoe as shown in FIG. It is integrated with (1, 2).

As described above, when the user wears a pair of shoes in which the transmitters 10 and 20 are coupled and performs a desired motion motion, the transmitters 10 and 20 are as described above (see Patent Publication No. 2001-19672). Pressure values proportional to the load applied to both feet are detected by the first to fourth pressure sensors 11a-11d and 21a-21d according to the kinetic motion, and are sequentially received by the receiver 30 by wireless data transmission. .

Thereafter, the input pressure values are processed by the CPU 33 through the signal processing process by the indicator controller 37, as shown in FIG. 1, in front of each of the left and right feet (i.e., the big toe part and the little toe part) and the rear (i.e., the foot). The left / right load distribution patterns (51a-51d, 52a-52d) in which the load distribution applied to both heel parts) changes the size of the unit pattern (5) according to the size of the load. The distribution ratio of the load applied is displayed on the display device 50 as a percentage value.

The pressure values obtained by the transmitters 10 and 20 as described above may provide various types of information to the user according to the signal processing of the receiver 30, and thus may be used to correct the exercise motion of the user.

As a result, the user can easily determine what is wrong with his posture by analyzing the left / right load distribution pattern for each time, that is, the motion 1 to 3 of each page, while referring to the data that records each distance and the direction the golf ball flew. You can judge.

In the above example, serial communication is used as the data communication. However, when there is a large amount of data to be transmitted from the transmission apparatus, high-speed data processing is possible by using well-known parallel data communication.

In addition, in the above example, four pressure sensors are used to represent the four load sensors corresponding to the four pressure sensors, but it is also possible to display the two load distributions at the front and the rear. In addition, four pressure sensors are not necessarily used, and it is also possible to detect the load distribution by arranging two in the front and one in the rear or one in the front and the rear. In other words, as the number of pressure sensors increases, it becomes possible to display graphics corresponding to even finer load distribution.

Further, in the above embodiment, but the shape of each of the pressure sensors to form a rectangular shape, it is preferable to have a structure divided into a plurality of while forming the shape of the foot, that is, the shape of the shoe.

In addition, the above embodiment has been described with respect to the swing motion related to the golf exercise, for example, in addition to golf, a number of pressures installed in both shoes also in various sports operations that require a continuous motion change in a stationary state, such as baseball, table tennis, tennis, etc. Pressure data (load distribution data) obtained from the sensor can be used to correct one's posture.

Moreover, the present invention can be used not only for the correction of motion that starts at the stop motion of a sports game using tools such as golf clubs, bats, and rackets, but also for the continuous motion of a sports game without using such a tool or for a certain momentary posture correction. It is possible.

As described above, in the present invention, the transmission device attached to the user's shoes can be easily replaced as needed, and a plurality of pressure sensors embedded in the substrate are stably supported and at the same time precisely adjust the pressure value corresponding to the load. By measuring and transmitting, the receiving device is used to graphically analyze and quantitatively analyze the distribution of the load applied to the feet according to the user's motion change and the change in the continuous operating load.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments and is not limited to the spirit of the present invention. Various changes and modifications will be possible by those who have the same.

Claims (5)

In the load data transmission apparatus for the motion load distribution measuring system of the motion motion for detecting and transmitting the operation load corresponding to the motion motion of the user for wireless transmission, A substrate detachably coupled to the sole of the user's shoe, A plurality of pressure sensors for detecting a plurality of pressure values, each of which is embedded in the substrate and is proportional to the load applied to each part of the foot during a user's exercise motion; It is composed of a signal transmitter for signal processing the pressure value detected from the plurality of pressure sensors to send to the receiving device by wireless data communication, The substrate is made of the same or similar shape and material as the sole of the user's shoe, the first substrate is embedded with the RF transmitter in the front and the signal transmitter in the rear, Each of which is made of an elastic material having excellent durability, and is attached to the front and rear floors of the first substrate to support the load of the user, and at the same time, the second and third substrates are divided and embedded in the plurality of pressure sensors. A load data transmission device for an operating load distribution measuring system of a kinetic motion. delete delete The method of claim 1, wherein the substrate further comprises a plurality of fixing bolts of which the front end is fastened through a plurality of through-holes formed in the first substrate from the second and third substrate to a plurality of stud nuts embedded in the sole, respectively; Load data transmission device for the motion load distribution measuring system of the motion motion, characterized in that. delete