WO2018163254A1

WO2018163254A1 - Motion analysis device, motion analysis method, and computer-readable recording medium

Info

Publication number: WO2018163254A1
Application number: PCT/JP2017/008834
Authority: WO
Inventors: 遠藤　浩幸; 二瓶　史行; 規之殿内
Original assignee: 日本電気株式会社
Priority date: 2017-03-06
Filing date: 2017-03-06
Publication date: 2018-09-13

Abstract

A motion analysis device 10 comprising: a signal acquisition unit 11 that, from a pressure sensor 20 that constitutes a grip portion 22 of sporting equipment 21 and outputs a signal specifying a pressed position when the grip portion 22 is pressed and the pressure exerted on the pressed position, acquires a signal at a time when a player 23, who is using the sporting equipment 21, grasps the grip portion 22; a pressure detection unit 12 that detects the distribution of pressure in the grip portion 22 on the basis of the acquired signal; and an information display unit 13 that displays the detected pressure distribution on a screen.

Description

Motion analysis apparatus, motion analysis method, and computer-readable recording medium

The present invention relates to a motion analysis apparatus and a motion analysis method for analyzing a player's motion in sports using sports equipment such as a bat, a golf club, and a racket, and further, records a program for realizing these. The present invention relates to a computer-readable recording medium.

In sports that hit the ball by swinging the tool, such as golf, tennis, and baseball, it is important to transmit the player's power to the ball as efficiently as possible through the tool. For this reason, in these sports, various theories have been established in order to efficiently transmit the player's power to the ball.

Also, as a common theory in any sport, it is known that the user should grasp the grip part of the tool as loosely as possible. This is because if the user's gripping force is too strong, the wrist movement will be restricted more than necessary, the speed of the tool head will decrease, and the user's force will not be transmitted efficiently to the ball. Because.

For this reason, conventionally, attempts have been made to support the improvement of sports by the user by detecting the pressure when the user grips the grip portion (see, for example, Patent Documents 1 and 2).

Specifically, Patent Document 1 discloses a system in which a sheet-like pressure sensor is attached to a grip portion. The pressure sensor is formed by sandwiching a conductive rubber sheet between a pair of electrode plates, and is mounted on a golf club grip in a rolled state. For this reason, since the pressure sensor outputs a signal according to the magnitude of the gripping force of the player, a time-series change in the gripping force during play is specified.

Patent Document 2 discloses a system in which a grip force sensor is attached to a grip of a golf club. The gripping force sensor is configured by embedding a movable piece in a recess provided in the grip. A strain gauge is arranged around the movable piece. When the player's finger is displaced, the strain is detected, and the frictional force is calculated from the detected strain. A pressure sensor is arranged at the center of the movable piece. And in patent document 2, nine grip force sensors are arrange | positioned according to the position of the belly of each finger | toe (except the little finger of a right hand or the little finger of a left hand). For this reason, the pressure and frictional force of each finger are detected by the gripping force sensor.

JP 62-117529 A JP-A-2005-292061

However, in the system disclosed in Patent Document 1, since the pressure sensor can measure only the gripping force of the entire player's hand due to the structure, when the player applies force or loosens according to the finger, the support for improvement It is difficult to do.

On the other hand, according to the system disclosed in Patent Document 2, the pressure for each finger of the player can be measured, but this system has a problem that only the pressure of a part of the finger can be measured. As a result, there is a problem that this cannot be detected when the player is putting power with the base of the finger, not the finger, but the palm.

An example of an object of the present invention is to provide a motion analysis device, a motion analysis method, and a computer-readable recording medium that can solve the above-described problem and detect the magnitude of the gripping force for each part of a player's hand. It is in.

In order to achieve the above object, a motion analysis apparatus according to one aspect of the present invention includes:
The sports equipment is used from a pressure-sensitive sensor that constitutes a grip portion of the sports equipment and outputs a signal specifying a pressed position and a pressure applied to the pressed position when pressed. A signal acquisition unit for acquiring the signal when the player holds the grip part;
A pressure detector that detects a pressure distribution in the grip portion based on the acquired signal; and
An information display unit for displaying a distribution of the detected pressure on the screen;
It is characterized by having.

In order to achieve the above object, a motion analysis method according to one aspect of the present invention includes:
(A) The sports equipment is configured from a pressure-sensitive sensor that constitutes a grip portion of the sports equipment and outputs a signal specifying a pressed position and a pressure applied to the pressed position when pressed. Obtaining the signal when the player using the grip grips the grip portion; and
(B) detecting a pressure distribution in the grip portion based on the acquired signal; and
(C) displaying the distribution of the detected pressure on a screen;
It is characterized by having.

Furthermore, in order to achieve the above object, a computer-readable recording medium according to one aspect of the present invention is provided.
On the computer,
(A) The sports equipment is configured from a pressure-sensitive sensor that constitutes a grip portion of the sports equipment and outputs a signal specifying a pressed position and a pressure applied to the pressed position when pressed. Obtaining the signal when the player using the grip grips the grip portion; and
(B) detecting a pressure distribution in the grip portion based on the acquired signal; and
(C) displaying the distribution of the detected pressure on a screen;
A program including an instruction for executing is recorded.

As described above, according to the present invention, the magnitude of the gripping force for each part of the player's hand can be detected.

FIG. 1 is a block diagram showing a configuration of a motion analysis apparatus according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view showing the configuration of the pressure sensor used in the embodiment of the present invention. FIGS. 3A to 3C are diagrams showing an example of the pressure distribution displayed on the screen in the first embodiment of the present invention, and each figure shows the change in the pressure distribution along the time series. Show. FIG. 4 is a flowchart showing the operation of the motion analysis apparatus according to Embodiment 1 of the present invention. FIG. 5 is a block diagram showing the configuration of the motion analysis apparatus according to Embodiment 2 of the present invention. FIG. 6 is a diagram showing an example of the pressure distribution displayed on the screen in the second embodiment of the present invention, and each figure shows a change in the pressure distribution along the time series. FIG. 7 is a flowchart showing the operation of the motion analysis apparatus according to Embodiment 2 of the present invention. FIG. 8 is a block diagram showing the configuration of the motion analysis apparatus according to Embodiment 3 of the present invention. FIG. 9 is a flowchart showing the operation of the motion analysis apparatus according to the third embodiment of the present invention. FIG. 10 is a block diagram illustrating an example of a computer that implements the motion analysis apparatus according to the first to third embodiments of the present invention.

(Embodiment 1)
Hereinafter, a motion analysis device, a motion analysis method, and a program according to Embodiment 1 of the present invention will be described with reference to FIGS.

[Device configuration]
Initially, the structure of the motion analysis apparatus 10 in this Embodiment 1 is demonstrated using FIG. FIG. 1 is a block diagram showing a configuration of a motion analysis apparatus according to Embodiment 1 of the present invention.

1 is a device that displays a pressure distribution when the player 23 grips the grip portion 22 of the sports equipment 21 for the motion analysis of the player 23. The motion analysis device 10 according to the first embodiment shown in FIG. As shown in FIG. 1, the motion analysis apparatus 10 includes a signal acquisition unit 11, a pressure detection unit 12, and an information display unit 13.

The signal acquisition unit 11 acquires a signal when the player 23 using the sports equipment 21 grips the grip portion 22 from the pressure sensor 20 constituting the grip portion 22 of the sports equipment 21. In addition, the pressure sensor 20 outputs a signal that specifies a pressed position and a pressure applied to the pressed position when pressed.

The pressure detection unit 12 detects the pressure distribution in the grip portion 22 based on the signal acquired by the signal acquisition unit 11. The information display unit 13 displays the detected pressure distribution on the screen of the display device 30.

In this way, the motion analysis device 10 specifies a pressure distribution when the player 23 grips the grip portion 22 in order to obtain a signal from the pressure-sensitive sensor 20 constituting the grip portion 22 of the sports equipment 21, This can be displayed on the screen. For this reason, according to the motion analysis device 10, since the magnitude of the heel gripping force for each hand portion of the player 23 can be detected, the analyst can apply the force to which part of the hand the player 23 applies to which part of the hand. Can be analyzed.

Subsequently, the configuration of the motion analysis apparatus 10 will be described more specifically with reference to FIG. 2 in addition to FIG. FIG. 2 is a cross-sectional view showing the configuration of the pressure sensor used in the embodiment of the present invention.

As shown in FIG. 2, in the present embodiment, the pressure-sensitive sensor 20 is formed in a sheet shape and attached to the sports equipment 21 in a rolled state (see FIG. 1). The pressure-sensitive sensor 20 includes a first substrate 201 in which thin film transistors 203 are arranged in an array, a second substrate 202, and a pressure-sensitive rubber layer 212. The pressure-sensitive rubber layer 212 includes the first substrate 201. It is sandwiched between the substrate 201 and the second substrate 202.

Specifically, the thin film transistor 203 includes a gate electrode 204 provided over the first substrate 201, a gate insulating film 207 covering the gate electrode 204, a drain electrode 205, a source electrode 206, and a semiconductor layer 208. It has. The drain electrode 205 and the source electrode 206 are formed over the gate insulating film 207, and a semiconductor layer 208 is formed between the drain electrode 205 and the source electrode 206.

In addition, an insulating protective film 211 is provided on the first substrate 201 so as to cover the thin film transistor 203, and an array electrode 210 corresponding to each thin film transistor 203 is provided on the protective film 211. Yes. The array electrode 210 is electrically connected to the source electrode 206 by a via electrode 209 that penetrates over the protective film 211. The array electrode 210 is in contact with the pressure-sensitive rubber layer 212.

The pressure-sensitive rubber layer 212 is formed by dispersing conductive particles 212a in a base material made of a rubber material. A common electrode 213 is provided on the surface of the second substrate 202 on the pressure-sensitive rubber layer 212 side. Accordingly, when pressing is performed at an arbitrary position of the pressure-sensitive sensor 20, the second substrate 202 and the common electrode 213 are bent, and thereby the corresponding position of the pressure-sensitive rubber layer 212 is compressed. As a result, the dispersed particles 212a come into contact with each other at the portion where the pressure-sensitive rubber layer 212 is pressed, and the common electrode 213 and the array electrode 210 are electrically connected via the contacting particles 212a.

In the pressure-sensitive sensor 20, since a voltage is applied to the common electrode 213 and the gate electrode 204, when the common electrode 213 and the array electrode 210 are electrically connected through the particles 212a, a current is supplied to the drain electrode 205. Flows. The value of the current flowing through the drain electrode 205 increases as the amount of the particles 212a in contact with each other increases, that is, as the pressure applied by pressing increases.

Thereafter, the pressure sensor 20 outputs a signal for specifying the position of the drain electrode 205 through which the current flows and the pressure at each position. Note that the position of the drain electrode 205 through which current flows corresponds to the position of the portion where pressure is applied by pressing. Therefore, when the player 23 grips the grip portion 22, the gripping force for each hand portion of the player 23 is detected by this signal. The pressure sensor 20 applies a voltage to the gate electrode 204 at a constant timing, and repeatedly outputs a signal at a set time interval.

Further, since the pressure-sensitive sensor 20 outputs a signal every set time, the signal acquisition unit 11 acquires a signal every set time in the present embodiment. When the signal output from the pressure sensor 20 is an analog signal, when the signal acquisition unit 11 acquires the signal, the signal acquisition unit 11 converts the signal into a digital signal and outputs the obtained digital signal to the pressure detection unit 12. .

In the present embodiment, when the pressure detection unit 12 receives a signal from the signal acquisition unit 11, the pressure detection unit 12 specifies the position of each part to which pressure is applied by pressing and the magnitude of the pressure at each part based on the received signal. To do. In addition, the pressure detection unit 12 may divide each identified part into several groups according to the position and the magnitude of the pressure, and set each group as one region having the same pressure. . In this case, the pressure distribution is detected by the set region.

The grouping is performed, for example, by first grouping each part according to a plurality of pressure ranges that are set in a stepwise manner. Further, for each obtained group, adjacent parts are the same group. It is possible to perform grouping again so that

In addition, when the signal is output every set time, the pressure detecting unit 12 detects the pressure distribution every set time. In addition, each time the pressure detection unit 12 detects a pressure distribution, the pressure detection unit 12 outputs data specifying the detected distribution to the information display unit 13. Furthermore, the pressure detection unit 12 can also predict the position of the hand of the player 23 in the grip portion 22 from the detected pressure distribution.

In the first embodiment, when the pressure detector 12 detects the pressure distribution, the information display unit 13 displays the detected pressure distribution on the screen of the display device 30 in time series. . When the pressure detection unit 12 predicts the position of the hand of the player 23, the information display unit 13 displays the player on the screen of the display device 30 based on the predicted position of the hand of the player 23. The figure indicating the hand and the pressure distribution can be displayed in an overlapping manner. Specifically, the information display unit 13 displays the region set by the pressure detection unit 12 so as to overlap the graphic indicating the hand of the player 23 on the screen.

Here, the screen display in the first embodiment will be specifically described with reference to FIGS. FIGS. 3A to 3C are diagrams showing an example of the pressure distribution displayed on the screen in the first embodiment of the present invention, and each figure shows the change in the pressure distribution along the time series. Show.

As shown in FIGS. 3A to 3C, a hand graphic 32 and a region 33 are displayed on the screen 31 so as to overlap each other. Moreover, the area | region 33 is an area | region which the pressure detection part 12 set in the case of the grouping mentioned above, and two or more are displayed for every part of a hand. Furthermore, the color of the region 33 is darker as the pressure is higher, and the pressure distribution is indicated by each region 33.

Therefore, the analyst can visually recognize from the screen 30 how much force is applied to which part of the player 23's hand. Further, when the power of the player's hand changes along the time series, the region 32 also changes along the time series, so that the analyst can also visually recognize the change in the degree of force applied by the player 23. Note that the analyst may include the player himself, a coach, and the like.

[Device operation]
Next, the operation of the motion analysis apparatus 10 according to the first embodiment will be described with reference to FIG. FIG. 4 is a flowchart showing the operation of the motion analysis apparatus according to Embodiment 1 of the present invention. In the following description, FIGS. 1 to 3 are referred to as appropriate. In the first embodiment, the motion analysis method is performed by operating the motion analysis device. Therefore, the description of the motion analysis method in the first embodiment is replaced with the following description of the operation of the motion analysis device 10.

As shown in FIG. 4, first, the signal acquisition unit 11 acquires a signal output from the pressure sensor 20 constituting the grip portion 22 of the sports equipment 21 (step A1). The signal output from the pressure-sensitive sensor 20 is a signal that identifies the position of the portion where pressure is applied by pressing and the pressure applied to each portion.

Next, the pressure detection unit 12 detects the pressure distribution by specifying the position of each part to which pressure is applied by the pressure and the magnitude of the pressure at each part based on the signal acquired in step A1 ( Step A2). Subsequently, the pressure detector 12 predicts the position of the hand of the player 23 in the grip portion 22 from the detected pressure distribution (step A3).

Next, the information display unit 13 uses the pressure distribution detected in step A2 and the hand position predicted in step A3 to display the figure indicating the hand of the player 23 and the pressure on the screen of the display device 30. Are superimposed and displayed (step A4).

Next, the information display unit 13 determines whether or not the end of measurement is instructed to the motion analysis apparatus 10 (step A5). If the end of measurement is instructed as a result of the determination in step A5, the process in the motion analysis apparatus 10 ends. On the other hand, if the end of the measurement is not instructed as a result of the determination in step A5, step A1 is executed, and the signal acquisition unit 11 acquires a signal newly output from the pressure sensor 20.

In this way, unless the measurement end is instructed, steps A1 to A4 are repeatedly executed. Therefore, every time a signal is output from the pressure sensor 20 at a set time interval, that is, in time series, The pressure distribution is displayed on the screen. That is, according to the first embodiment, the magnitude of the gripping force for each hand portion of the player 23 is detected and the detection result is displayed along the time series. For this reason, the analyst can analyze which part of the hand the player 23 puts in and what part of the hand is drawn out.

[program]
The program in the first embodiment may be a program that causes a computer to execute steps A1 to A5 shown in FIG. By installing and executing this program on a computer, the motion analysis apparatus 10 and the motion analysis method according to the first embodiment can be realized. In this case, a CPU (Central Processing Unit) of the computer functions as the signal acquisition unit 11, the pressure detection unit 12, and the information display unit 13 to perform processing.

Further, the program in the first embodiment may be executed by a computer system constructed by a plurality of computers. In this case, for example, each computer may function as any one of the signal acquisition unit 11, the pressure detection unit 12, and the information display unit 13, respectively.

(Embodiment 2)
Next, a motion analysis device, a motion analysis method, and a program according to Embodiment 2 of the present invention will be described with reference to FIGS.

[Device configuration]
Initially, the structure of the motion analysis apparatus 40 in this Embodiment 2 is demonstrated using FIG. FIG. 5 is a block diagram showing the configuration of the motion analysis apparatus according to Embodiment 2 of the present invention.

As shown in FIG. 5, the motion analysis apparatus 40 in the second embodiment includes a difference specifying unit 41 and a data storage unit 42, unlike the motion analysis apparatus 10 in the first embodiment shown in FIG. Yes. Except for these points, the motion analysis device 40 is configured in the same manner as the motion analysis device 10. The motion analysis device 40 also includes a signal acquisition unit 11, a pressure detection unit 12, and an information display unit 13. Hereinafter, the difference from the first embodiment will be mainly described.

In the second embodiment, the difference specifying unit 41 specifies a difference between the pressure distribution detected by the pressure detecting unit 12 and the pressure distribution detected for a specific player. In addition, the data storage unit 42 stores in advance the distribution of pressure detected for this specific player.

Specifically, examples of the specific player include a player who is a model for the player 23 such as a professional player, a coach, and an advanced player. The data storage unit 42 stores pressure distributions detected in the past for professional players, coaches, advanced players, and the like. The difference specifying unit 41 specifies the difference between the pressure distribution detected for the player 23 and the pressure distribution detected in the past for the model player.

Further, the specific player may be the past player 23 itself. In this case, the data storage unit 42 stores the distribution of pressure detected in the past for the player 23 itself. The difference specifying unit 41 specifies a difference between the current pressure distribution of the player 23 and the past pressure distribution.

In the second embodiment, the information display unit 13 displays the pressure distribution detected for a specific player along with the pressure distribution detected by the pressure detection unit 12 on the screen of the display device 30. Furthermore, the information display unit 13 also displays the specified difference on the screen of the display device 30.

Here, the screen display in the first embodiment will be specifically described with reference to FIG. FIG. 6 is a diagram showing an example of the pressure distribution displayed on the screen in the second embodiment of the present invention, and each figure shows a change in the pressure distribution along the time series.

In the example of FIG. 6, the information display unit 13 displays the pressure distribution 34 in the player 23 and the pressure distribution 35 in the player as a model on the screen 31 together with the graphic 32 at a specific time. The information display unit 13 can also switch the acquisition time points of the displayed

pressure distributions

34 and 35 in accordance with an instruction from the analyst. From the screen shown in FIG. 6, the analyst analyzes that, for example, the gripping force of the player 23 is stronger than the gripping force of the player as a model in the entire hand, and the player 23 grips the grip portion 22 too strongly. To do.

Further, in the example of FIG. 6, the difference specifying unit 41 compares the pressure distribution 34 and the pressure distribution 35, for example, the difference in the number of regions 33, the difference in pressure in each region, the difference in distribution, etc. Identify as differences. Further, the difference specifying unit 41 can compare the pressure distribution 34 and the pressure distribution 35 for each set time from the start to the end of the measurement, and specify the difference for each time.

[Device operation]
Next, the operation of the motion analysis apparatus 40 in the second embodiment will be described with reference to FIG. FIG. 7 is a flowchart showing the operation of the motion analysis apparatus according to Embodiment 2 of the present invention. In the following description, FIGS. 5 and 6 are referred to as appropriate. Also in the second embodiment, the motion analysis method is implemented by operating the motion analysis device 40. Therefore, the description of the motion analysis method in the second embodiment is replaced with the following description of the operation of the motion analysis device 40.

First, also in the second embodiment, in order to detect the pressure distribution of the player 23, steps A1 to A5 shown in FIG. 4 in the first embodiment are executed. Thereafter, the steps shown in FIG. 7 are executed.

As shown in FIG. 7, first, when an analyst instructs the comparison with a specific player, the difference specifying unit 41 accesses the data storage unit 42 and acquires the pressure distribution in the specific player. (Step B1). Further, the difference specifying unit 41 passes the acquired pressure distribution to the information display unit 13.

Next, the information display unit 13 displays the pressure distribution detected for the specific player along with the pressure distribution detected by the pressure detection unit 12 on the screen of the display device 30 (step B2).

Next, the difference specifying unit 41 compares the pressure distribution in the player 23 with the pressure distribution in the specific player, and specifies the difference between the two (step B3). Thereafter, the information display unit 13 displays the difference specified in step B3 on the screen of the display device 30 (step B4).

As described above, according to the second embodiment, the analyst can confirm the difference in gripping force at the grip portion 22 between the player 23 and the player as a model. Can be given.

[program]
The program in the second embodiment may be a program that causes a computer to execute steps A1 to A5 shown in FIG. 4 and steps B1 to B4 shown in FIG. By installing and executing this program on a computer, the motion analysis apparatus 40 and the motion analysis method according to the second embodiment can be realized. In this case, a CPU (Central Processing Unit) of the computer functions as the signal acquisition unit 11, the pressure detection unit 12, the information display unit 13, and the difference identification unit 41 to perform processing.

In the second embodiment, the data storage unit 42 stores the data files constituting these in a storage device such as a hard disk provided in the computer or a recording medium storing the data files. This can be realized by mounting on a reading device connected to a computer.

Further, the program according to the second embodiment may be executed by a computer system constructed by a plurality of computers. In this case, for example, each computer may function as any one of the signal acquisition unit 11, the pressure detection unit 12, the information display unit 13, and the difference identification unit 41. The data storage unit 42 may be constructed on a computer different from the computer that executes the program according to the second embodiment.

(Embodiment 3)
Next, a motion analysis device, a motion analysis method, and a program according to Embodiment 3 of the present invention will be described with reference to FIGS.

[Device configuration]
Initially, the structure of the motion analysis apparatus 50 in this Embodiment 3 is demonstrated using FIG. FIG. 8 is a block diagram showing the configuration of the motion analysis apparatus according to Embodiment 3 of the present invention.

As shown in FIG. 8, also in the third embodiment, the motion analysis device 50 is similar to the motion analysis devices in the first and second embodiments in that the signal acquisition unit 11, the pressure detection unit 12, and the information display unit. 13. However, in the third embodiment, a motion sensor 24 that outputs a signal specifying the motion state of the player 23 is used. For this reason, the process in the motion analysis apparatus 50 in the third embodiment is different from the motion analysis apparatus in the first and second embodiments. Hereinafter, the difference from Embodiments 1 and 2 will be mainly described.

First, in the third embodiment, the motion sensor 24 is attached to the sports equipment 21. The motion sensor 24 may be an acceleration sensor, for example. In this case, when the player 23 exercises using the sports equipment 21, a signal output from the motion sensor 24 (hereinafter referred to as "sensor signal"). .) Level changes. For this reason, the motion state of the player 23 can be specified by the sensor signal from the motion sensor 24.

In the third embodiment, the signal acquisition unit 11 acquires not only the signal from the pressure sensor 20 but also the sensor signal from the motion sensor 24. Furthermore, the pressure detection unit 12 calculates acceleration based on the sensor signal at the timing when the signal from the pressure sensor 20 is acquired. The calculated acceleration indicates the acceleration of the hand of the player 23, and the motion of the hand of the player 23 is specified by the sensor signal. Further, the pressure detection unit 12 associates the detected pressure distribution with the calculated acceleration, and passes these to the information display unit 13.

In the third embodiment, the information display unit 13 displays on the screen of the display device 30 the motion state specified from the sensor signal, that is, the acceleration of the hand of the player 23, along with the distribution of the detected pressure. .

[Device operation]
Next, the operation of the motion analysis apparatus 50 according to the third embodiment will be described with reference to FIG. FIG. 9 is a flowchart showing the operation of the motion analysis apparatus according to the third embodiment of the present invention. In the following description, FIG. 8 is taken into consideration as appropriate. Also in the third embodiment, the motion analysis method is implemented by operating the motion analysis device 50. Therefore, the description of the motion analysis method in the third embodiment is replaced with the following description of the operation of the motion analysis device 50.

As shown in FIG. 9, first, the signal acquisition unit 11 acquires a signal output from the pressure sensor 20 constituting the grip portion 22 of the sports equipment 21 and a sensor signal output from the motion sensor 24. (Step C1).

Next, based on the signal from the pressure sensor 20 acquired in step C1, the pressure detection unit 12 specifies the position of each part where pressure is applied by pressing and the magnitude of the pressure at each part. The pressure distribution is detected (step C2). Subsequently, the pressure detector 12 predicts the position of the hand of the player 23 in the grip portion 22 from the detected pressure distribution (step C3). Steps C2 and C3 are the same as steps A2 and A3 shown in FIG. 4, respectively.

Next, the pressure detection unit 12 calculates the acceleration based on the sensor signal acquired in Step C1 (Step C4). In step C <b> 4, the pressure detection unit 12 associates the detected pressure distribution with the calculated acceleration and passes them to the information display unit 13.

Next, the information display unit 13 uses the pressure distribution detected in step C2 and the hand position predicted in step C3 to display the figure indicating the hand of the player 23 and the pressure on the screen of the display device 30. And the acceleration calculated in step C4 is displayed (step C5).

Next, the information display unit 13 determines whether or not the measurement end is instructed to the motion analysis device 50 (step C6). If the end of the measurement is instructed as a result of the determination in step C6, the process in the motion analysis device 50 ends. On the other hand, if the end of measurement is not instructed as a result of the determination in step C6, step C1 is executed, and the signal acquisition unit 11 acquires a signal newly output from the pressure sensor 20 and a sensor signal. To do.

Thus, unless the measurement end is instructed, steps C1 to C5 are repeatedly executed, so that the pressure distribution and acceleration are displayed on the screen in time series. That is, in the third embodiment, the change in the pressure distribution and the change in the movement of the hand of the player 23 are displayed at the same time, so that the analyst can determine which gripping force of the hand of the player 23 depends on the exercise state. You can analyze how it is changing.

In the third embodiment, the motion sensor 24 may be attached not to the sports equipment 21 but to the player 23 itself. The motion sensor 24 is not limited to an acceleration sensor as long as it can output a signal that can specify the motion state of the player 23.
[program]
The program in the third embodiment may be a program that causes a computer to execute steps C1 to C6 shown in FIG. By installing and executing this program on a computer, the motion analysis device 50 and the motion analysis method according to the third embodiment can be realized. In this case, a CPU (Central Processing Unit) of the computer functions as the signal acquisition unit 11, the pressure detection unit 12, and the information display unit 13 to perform processing.

Further, the program according to the third embodiment may be executed by a computer system constructed by a plurality of computers. In this case, for example, each computer may function as any one of the signal acquisition unit 11, the pressure detection unit 12, and the information display unit 13, respectively.

(Physical configuration)
Here, a computer that realizes the motion analysis apparatus by executing the programs in the first to third embodiments will be described with reference to FIG. FIG. 10 is a block diagram illustrating an example of a computer that implements the motion analysis apparatus according to the first to third embodiments of the present invention.

As shown in FIG. 10, the computer 110 includes a CPU 111, a main memory 112, a storage device 113, an input interface 114, a display controller 115, a data reader / writer 116, and a communication interface 117. These units are connected to each other via a bus 121 so that data communication is possible.

The CPU 111 performs various operations by developing the program (code) in the present embodiment stored in the storage device 113 in the main memory 112 and executing them in a predetermined order. The main memory 112 is typically a volatile storage device such as a DRAM (Dynamic Random Access Memory). Further, the program in the present embodiment is provided in a state of being stored in a computer-readable recording medium 120. Note that the program in the present embodiment may be distributed on the Internet connected via the communication interface 117.

Further, specific examples of the storage device 113 include a hard disk drive and a semiconductor storage device such as a flash memory. The input interface 114 mediates data transmission between the CPU 111 and an input device 118 such as a keyboard and a mouse. The display controller 115 is connected to the display device 119 and controls display on the display device 119.

The data reader / writer 116 mediates data transmission between the CPU 111 and the recording medium 120, and reads a program from the recording medium 120 and writes a processing result in the computer 110 to the recording medium 120. The communication interface 117 mediates data transmission between the CPU 111 and another computer.

Specific examples of the recording medium 120 include general-purpose semiconductor storage devices such as CF (Compact Flash (registered trademark)) and SD (Secure Digital), magnetic recording media such as a flexible disk, or CD- Optical recording media such as ROM (Compact Disk Read Only Memory) are listed.

Note that the motion analysis apparatus according to the first to third embodiments can be realized by using hardware corresponding to each unit, instead of a computer in which a program is installed. Further, a part of the motion analysis device may be realized by a program, and the remaining part may be realized by hardware.

Some or all of the above-described embodiments can be expressed by the following (Appendix 1) to (Appendix 18), but is not limited to the following description.

(Appendix 1)
The sports equipment is used from a pressure-sensitive sensor that constitutes a grip portion of the sports equipment and outputs a signal specifying a pressed position and a pressure applied to the pressed position when pressed. A signal acquisition unit for acquiring the signal when the player holds the grip part;
A pressure detector that detects a pressure distribution in the grip portion based on the acquired signal; and
An information display unit for displaying a distribution of the detected pressure on the screen;
A motion analysis apparatus comprising:

(Appendix 2)
The pressure detection unit predicts the position of the player's hand in the grip portion from the detected pressure distribution,
Based on the predicted position of the player's hand, the information display unit displays the graphic showing the player's hand and the pressure distribution on the screen in an overlapping manner.
The motion analysis apparatus according to appendix 1.

(Appendix 3)
The signal acquisition unit acquires a signal to be output every time the pressure sensor is set,
The pressure detector detects a distribution of the pressure for each set time;
The information display unit displays a distribution of the detected pressure along the time series on the screen.
The motion analysis apparatus according to appendix 1 or 2.

(Appendix 4)
The information display unit displays the pressure distribution detected for a specific player together with the detected pressure distribution on the screen.
The motion analysis apparatus according to any one of appendices 1 to 3.

(Appendix 5)
A difference specifying unit for specifying a difference between the detected pressure distribution and the detected pressure distribution for the specific player;
The information display unit displays the identified difference on the screen;
The motion analysis apparatus according to appendix 4.

(Appendix 6)
The signal acquisition unit acquires a signal specifying the exercise state from a sensor that outputs a signal specifying the exercise state of the player,
The information display unit displays an exercise state specified from a signal specifying the exercise state together with the distribution of the detected pressure on the screen.
The motion analysis apparatus according to any one of appendices 1 to 5.

(Appendix 7)
(A) The sports equipment is configured from a pressure-sensitive sensor that constitutes a grip portion of the sports equipment and outputs a signal specifying a pressed position and a pressure applied to the pressed position when pressed. Obtaining the signal when the player using the grip grips the grip portion; and
(B) detecting a pressure distribution in the grip portion based on the acquired signal; and
(C) displaying the distribution of the detected pressure on a screen;
A motion analysis method characterized by comprising:

(Appendix 8)
In the step (b), the position of the player's hand in the grip portion is predicted from the detected pressure distribution,
In the step (c), on the basis of the predicted position of the player's hand, a graphic showing the player's hand and the pressure distribution are displayed on the screen in an overlapping manner.
The motion analysis method according to appendix 7.

(Appendix 9)
In the step (a), a signal that is output every time the pressure sensor is set is acquired;
In the step (b), the distribution of the pressure for each set time is detected,
In the step (c), the distribution of the detected pressure is displayed on the screen in time series.
The motion analysis method according to appendix 7 or 8.

(Appendix 10)
In the step (c), the distribution of the pressure detected for a specific player is displayed on the screen together with the distribution of the detected pressure.
The motion analysis method according to any one of appendices 7 to 9.

(Appendix 11)
(D) further comprising the step of identifying a difference between the detected pressure distribution and the detected pressure distribution for the particular player;
In the step (c), the identified difference is displayed on the screen.
The motion analysis method according to attachment 10.

(Appendix 12)
In the step (a), a signal for specifying the motion state is further acquired from a sensor that outputs a signal for specifying the motion state of the player,
In the step (c), the movement state specified from the signal specifying the movement state is displayed on the screen together with the distribution of the detected pressure.
The motion analysis method according to any one of appendices 7 to 11.

(Appendix 13)
On the computer,
(A) The sports equipment is configured from a pressure-sensitive sensor that constitutes a grip portion of the sports equipment and outputs a signal specifying a pressed position and a pressure applied to the pressed position when pressed. Obtaining the signal when the player using the grip grips the grip portion; and
(B) detecting a pressure distribution in the grip portion based on the acquired signal; and
(C) displaying the distribution of the detected pressure on a screen;
The computer-readable recording medium which recorded the program containing the instruction | indication which performs this.

(Appendix 14)
In the step (b), the position of the player's hand in the grip portion is predicted from the detected pressure distribution,
In the step (c), on the basis of the predicted position of the player's hand, a graphic showing the player's hand and the pressure distribution are displayed on the screen in an overlapping manner.
The computer-readable recording medium according to attachment 13.

(Appendix 15)
In the step (a), a signal that is output every time the pressure sensor is set is acquired;
In the step (b), the distribution of the pressure for each set time is detected,
In the step (c), the distribution of the detected pressure is displayed on the screen in time series.
The computer-readable recording medium according to appendix 13 or 14.

(Appendix 16)
In the step (c), the distribution of the pressure detected for a specific player is displayed on the screen together with the distribution of the detected pressure.
The computer-readable recording medium according to any one of appendices 13 to 15.

(Appendix 17)
In the computer,
(D) further comprising the step of identifying a difference between the detected pressure distribution and the detected pressure distribution for the particular player;
In the step (c), the identified difference is displayed on the screen.
The computer-readable recording medium according to appendix 16.

(Appendix 18)
In the step (a), a signal for specifying the motion state is further acquired from a sensor that outputs a signal for specifying the motion state of the player,
In the step (c), the movement state specified from the signal specifying the movement state is displayed on the screen together with the distribution of the detected pressure.
The computer-readable recording medium according to any one of appendices 13 to 17.

The present invention has been described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

As described above, according to the present invention, the magnitude of the gripping force for each part of the player's hand can be detected. The present invention is useful in the field of sports using sports equipment such as clubs, rackets, and bats.

10. Motion analysis apparatus (Embodiment 1)
DESCRIPTION OF SYMBOLS 11 Signal acquisition part 12 Pressure detection part 13 Information display part 20 Pressure sensor 21 Sports equipment 22 Grip part 23 Player 24 Motion sensor 30 Display apparatus 31 Display screen 32 Graphic 33

Area

34, 35 Pressure distribution 40 Motion analysis apparatus (implementation) Form 2)
41 Difference identifying unit 42 Data storage unit 50 Motion analysis device (Embodiment 3)
110 Computer 111 CPU
112 Main Memory 113 Storage Device 114 Input Interface 115 Display Controller 116 Data Reader / Writer 117 Communication Interface 118 Input Device 119 Display Device 120 Recording Medium 121 Bus 201 First Substrate 202 Second Substrate 203 Thin Film Transistor 204 Gate Electrode 205 Drain Electrode 206 Source electrode 207 Gate insulating film 208 Semiconductor layer 209 Via electrode 210 Array electrode 211 Protective film 212 Pressure sensitive rubber layer 212a Conductive particle 213 Common electrode

Claims

The sports equipment is used from a pressure-sensitive sensor that constitutes a grip portion of the sports equipment and outputs a signal specifying a pressed position and a pressure applied to the pressed position when pressed. A signal acquisition unit for acquiring the signal when the player holds the grip part;
A pressure detector that detects a pressure distribution in the grip portion based on the acquired signal; and
An information display unit for displaying a distribution of the detected pressure on the screen;
A motion analysis apparatus comprising:
The pressure detection unit predicts the position of the player's hand in the grip portion from the detected pressure distribution,
Based on the predicted position of the player's hand, the information display unit displays the graphic showing the player's hand and the pressure distribution on the screen in an overlapping manner.
The motion analysis apparatus according to claim 1.
The signal acquisition unit acquires a signal to be output every time the pressure sensor is set,
The pressure detector detects a distribution of the pressure for each set time;
The information display unit displays a distribution of the detected pressure along the time series on the screen.
The motion analysis apparatus according to claim 1.
The information display unit displays the pressure distribution detected for a specific player together with the detected pressure distribution on the screen.
The motion analysis apparatus according to any one of claims 1 to 3.
A difference specifying unit for specifying a difference between the detected pressure distribution and the detected pressure distribution for the specific player;
The information display unit displays the identified difference on the screen;
The motion analysis apparatus according to claim 4.
The signal acquisition unit acquires a signal specifying the exercise state from a sensor that outputs a signal specifying the exercise state of the player,
The information display unit displays an exercise state specified from a signal specifying the exercise state together with the distribution of the detected pressure on the screen.
The motion analysis apparatus according to any one of claims 1 to 5.
(A) The sports equipment is configured from a pressure-sensitive sensor that constitutes a grip portion of the sports equipment and outputs a signal specifying a pressed position and a pressure applied to the pressed position when pressed. Obtaining the signal when the player using the grip grips the grip portion; and
(B) detecting a pressure distribution in the grip portion based on the acquired signal; and
(C) displaying the distribution of the detected pressure on a screen;
A motion analysis method characterized by comprising:
In the step (b), the position of the player's hand in the grip portion is predicted from the detected pressure distribution,
In the step (c), on the basis of the predicted position of the player's hand, a graphic showing the player's hand and the pressure distribution are displayed on the screen in an overlapping manner.
The motion analysis method according to claim 7.
In the step (a), a signal that is output every time the pressure sensor is set is acquired;
In the step (b), the distribution of the pressure for each set time is detected,
In the step (c), the distribution of the detected pressure is displayed on the screen in time series.
The motion analysis method according to claim 7 or 8.
In the step (c), the distribution of the pressure detected for a specific player is displayed on the screen together with the distribution of the detected pressure.
The motion analysis method according to any one of claims 7 to 9.
(D) further comprising the step of identifying a difference between the detected pressure distribution and the detected pressure distribution for the particular player;
In the step (c), the identified difference is displayed on the screen.
The motion analysis method according to claim 10.
In the step (a), a signal for specifying the motion state is further acquired from a sensor that outputs a signal for specifying the motion state of the player,
In the step (c), the movement state specified from the signal specifying the movement state is displayed on the screen together with the distribution of the detected pressure.
The motion analysis method according to any one of claims 7 to 11.
On the computer,
(A) The sports equipment is configured from a pressure-sensitive sensor that constitutes a grip portion of the sports equipment and outputs a signal specifying a pressed position and a pressure applied to the pressed position when pressed. Obtaining the signal when the player using the grip grips the grip portion; and
(B) detecting a pressure distribution in the grip portion based on the acquired signal; and
(C) displaying the distribution of the detected pressure on a screen;
The computer-readable recording medium which recorded the program containing the instruction | indication which performs this.
In the step (b), the position of the player's hand in the grip portion is predicted from the detected pressure distribution,
In the step (c), on the basis of the predicted position of the player's hand, a graphic showing the player's hand and the pressure distribution are displayed on the screen in an overlapping manner.
The computer-readable recording medium according to claim 13.
In the step (a), a signal that is output every time the pressure sensor is set is acquired;
In the step (b), the distribution of the pressure for each set time is detected,
In the step (c), the distribution of the detected pressure is displayed on the screen in time series.
The computer-readable recording medium according to claim 13 or 14.
In the step (c), the distribution of the pressure detected for a specific player is displayed on the screen together with the distribution of the detected pressure.
The computer-readable recording medium according to any one of claims 13 to 15.
In the computer,
(D) further comprising the step of identifying a difference between the detected pressure distribution and the detected pressure distribution for the particular player;
In the step (c), the identified difference is displayed on the screen.
The computer-readable recording medium according to claim 16.
In the step (a), a signal for specifying the motion state is further acquired from a sensor that outputs a signal for specifying the motion state of the player,
In the step (c), the movement state specified from the signal specifying the movement state is displayed on the screen together with the distribution of the detected pressure.
The computer-readable recording medium according to any one of claims 13 to 17.