JP2016073548A - Swing group analysis apparatus, swing group analysis method, and swing group analysis program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a swing group analysis apparatus, a swing group analysis method, etc. which realize a collective analysis as a swing group.SOLUTION: A swing group analysis apparatus 11 includes: a swing analysis unit 32 which calculates an analytical value of a specific item for each individual swing which belongs to a swing group on the basis of an output of an inertia sensor 21; and an evaluation unit 33 which evaluates the swing group by comparing a set target value and the analytical value.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a swing group analysis device, a swing group analysis method, a swing group analysis program, and the like.

  Patent document 1 discloses a swing training machine. The swing training machine accumulates swing information (information obtained from the swing motion). Swing parameters such as swing reproducibility, swing power, and swing endurance are calculated from the swing information. The practice method and practice amount are presented to the user from the tendency of the swing parameters.

JP-A-11-216217

  As a method of swing analysis, there are a case where it is desired to analyze one swing in detail, and a case where it is desired to collectively analyze an operation of repeating a swing several tens of times hundreds of times, such as practice of swinging. For example, Patent Document 1 describes that a swing is evaluated based on the difference between the maximum value of the swing speed of the day and the current swing speed, but does not describe an evaluation method as a swing group.

  According to at least one aspect of the present invention, it is possible to provide a swing group analysis device, a swing group analysis method, and a swing group analysis program that realize analysis combined as a swing group.

  (1) In one aspect of the present invention, a swing analysis unit that calculates an analysis value of a specific item for each individual swing belonging to a swing group from an output of an inertial sensor, and compares a set target value with the analysis value In addition, the present invention relates to a swing group analysis apparatus including an evaluation unit that evaluates the swing group.

  A detection signal is output from the inertial sensor at every swing. The detection signal is input to the analysis unit. The analysis unit calculates the analysis value of the specific item for each swing according to the input detection signal. The calculated analysis value is transferred to the evaluation unit. The evaluation unit compares the analysis value with the target value for each individual swing and evaluates a swing group that is an aggregate of the individual swings. Thus, the entire swing group is evaluated. The analysis collected as a swing group is realized.

  (2) The evaluation unit may specify a ratio of the swing that has reached the target value in the swing group. The entire swing group can be evaluated at the rate of the swing that has reached the target value.

  (3) The said evaluation part may provide a score according to the achievement degree with respect to the said target value for every said swing. Individual swings can be evaluated in stages depending on achievement.

  (4) The evaluation unit may calculate a total number of points given for each individual swing. Thus, the entire swing group can be evaluated finely.

  (5) The swing group analysis apparatus may further include an output unit that outputs an evaluation result of the swing group. Thus, the evaluation result of the swing group can be presented to the user.

  (6) The swing group analyzing apparatus may further include an input unit for inputting the target value. The user can specify a target value. In addition, the user can change the target value according to his / her achievement level.

  (7) In the swing group analysis device, the evaluation unit may update the target value according to the evaluation of the swing group. The evaluation unit changes the target value according to the evaluation of the swing group without waiting for the user's designation or operation. Thus, an effective target value can be automatically set for the user.

  (8) According to another aspect of the present invention, a procedure for calculating an analysis value of a specific item for each individual swing belonging to a swing group from an output of an inertial sensor, and a set target value and the analysis value are compared. And a swing group analysis method including a procedure for evaluating the swing group.

  (9) According to still another aspect of the present invention, a procedure for calculating an analysis value of a specific item for each individual swing belonging to a swing group from an output of an inertial sensor, and a set target value and the analysis value are compared. Then, the present invention relates to a swing group analysis program that causes a computer to execute a procedure for evaluating the swing group.

It is a conceptual diagram which shows the structure of a swing group evaluation apparatus roughly. It is a block diagram which shows roughly the structure of a swing group evaluation apparatus. It is a flowchart which shows the swing group evaluation method schematically. It is a top view of the smart phone which shows one specific example of a screen. It is a top view of the smart phone which shows one specific example of a screen. It is a top view of the smart phone which shows one specific example of a screen.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The present embodiment described below does not unduly limit the contents of the present invention described in the claims, and all the configurations described in the present embodiment are essential as means for solving the present invention. Not necessarily.

(1) Configuration of Swing Group Evaluation Device As shown in FIG. 1, the swing group evaluation device 11 includes a sensor unit 12 and a host terminal 13. The sensor unit 12 is mounted on, for example, a baseball or softball bat 14. The sensor unit 12 is attached to the grip end 14 a of the bat 14 with a mount member 15. The mount member 15 is preferably made of, for example, a stretchable material.

  The host terminal 13 is composed of a smartphone 16, for example. The smartphone 16 includes a display panel 17. A touch screen panel 18 as an input unit is overlaid on the surface of the display panel 17. The user can confirm the evaluation result of the swing group according to the display on the display panel 17. Similarly, the user can input various instructions and conditions according to the operation of the touch screen panel 18. In addition, a tablet PC terminal, a notebook PC terminal, a desktop PC terminal, or the like can be used as the host terminal 13.

  The sensor unit 12 is communicatively connected to the smartphone 16 by radio, for example. For example, Bluetooth (registered trademark) can be used for wireless communication. Thus, the detection signal of the sensor unit 12 is supplied to the smartphone 16.

  As shown in FIG. 2, the sensor unit 12 includes an inertial sensor 21. The inertial sensor 21 incorporates an acceleration sensor and a gyro sensor. The acceleration sensor can individually detect acceleration in three axial directions orthogonal to each other. The gyro sensor can individually detect the angular velocity around each of three axes orthogonal to each other. The inertial sensor 21 outputs a detection signal. The detection signal specifies the amount of inertia. That is, the acceleration and angular velocity are specified for each individual axis in the detection signal.

  The sensor unit 12 has a data processing unit 22. The data processing unit 22 is connected to the inertial sensor 21. A detection signal is supplied from the inertial sensor 21 to the data processing unit 22. The detection signal is processed by the data processing unit 22 and converted into a signal in a form suitable for communication. For example, an analog signal is converted into a digital signal.

  The sensor unit 12 has a communication unit 23. The communication unit 23 is connected to the data processing unit 22. A processed detection signal is supplied from the data processing unit 22 to the communication unit 23. The communication unit 23 outputs a detection signal wirelessly according to a determined communication protocol.

  The host terminal 13 has a processing unit 25. The processing unit 25 is constituted by a CPU, for example. A communication unit 26 is connected to the processing unit 25. The communication unit 26 can exchange signals with the communication unit 23 of the sensor unit 12 wirelessly. Thus, the processing unit 25 can process the output signal of the sensor unit 12. Although not shown, the display unit 17 and the touch screen panel 18 are connected to the processing unit 25. The processing unit 25 can output the processing result to the display panel 17 and can execute an operation determined according to the operation of the touch screen panel 18.

  Storage means such as a ROM (Read Only Memory) 27, a RAM (Random Access Memory) 28, and a nonvolatile memory 29 are connected to the processing unit 25. The processing unit 25 uses a ROM 27, a RAM 28, and a non-volatile memory 29 for signal processing. The ROM 27 stores a swing group analysis software program and related data. The processing unit 25 executes a swing group analysis software program to realize a swing group analysis method. For example, the RAM 28 temporarily stores a swing group analysis software program when the swing group analysis method is executed. The nonvolatile memory 29 stores a relatively small capacity program and data such as BIOS (basic input / output system).

  The processing unit 25 includes a data acquisition unit 31, a swing analysis unit 32, and a swing evaluation unit 33. The data acquisition unit 31 acquires the output data of the sensor unit 12 received via the communication unit 26. The data acquisition unit 31 stores the acquired output data in the RAM 28, for example. The RAM 28 stores output data in time series.

  The swing analysis unit 32 calculates swing analysis information based on the output data acquired by the data acquisition unit 31. The swing analysis information includes an analysis value of each item for each individual swing. The items include swing speed, swing time, grip rotation radius, bat 14 angle, bat 14 rotation angle, and the like. The swing speed specifies the head speed of the bat 14. The swing time specifies the time elapsed from the end of the previous swing to the end of the current swing. The grip rotation radius specifies the rotation radius of the track of the grip end 14a. The angle of the bat 14 specifies the inclination angle of the bat 14 with respect to the horizontal plane. The rotation angle of the bat 14 specifies the rotation angle of the bat 14 around the rotation axis (the trunk of the user) of the swing. Of these, at least one item may be calculated, or all items may be calculated. Such swing analysis information is specified based on the trajectory and posture of the bat 14 during the swing. A signal for specifying the analysis value is output from the swing analysis unit 32 to, for example, the RAM 28. For example, the swing analysis information may be stored in the RAM 28 for each individual swing.

  The swing evaluation unit 33 performs an analysis collected as an aggregate of a plurality of swings, that is, a swing group. In the analysis, the swing evaluation unit 33 specifies a target value for each item of the swing analysis information. The swing evaluation unit 33 acquires a signal specifying the target value of the item. The target value may be stored in the RAM 28 in advance. Here, the target value may be set by the user's designation based on the operation of the touch screen panel 18.

  The swing evaluation unit 33 compares the analysis value with the target value for each individual swing. For comparison, the swing evaluation unit 33 receives a signal for specifying an analysis value from the RAM 28. In this way, it is evaluated whether or not the target value has been reached for each individual swing. The swing evaluation unit 33 identifies the proportion of the swing that has reached the target value in the swing group. Target achievement is evaluated according to the percentage.

(2) Operation of Swing Group Evaluation Device According to First Embodiment When swinging the bat 14, the user attaches the sensor unit 12 to the bat 14. The sensor unit 12 is fixed to the grip end 14 a of the bat 14. For example, the user operates the touch screen panel 18 according to the display on the display panel 17 to start the swing group analysis software program. Thus, the swing group analysis method is executed.

  As shown in FIG. 3, when the swing group analysis software program is activated, the user is prompted to select an item in step S1. For example, as shown in FIG. 4, items to be indicators of achievement are listed on the screen of the display panel 17. For example, one or more items may be selected from the swing speed, swing time, grip rotation radius, bat 14 angle, and bat 14 rotation angle. In step S2, the user sets a target value for each selected item. For example, the head speed is set to a swing speed such as km / h. The target value of the head speed provides an indication of the strength of the hit ball. The swing time is set in seconds. The target value of swing time provides an indication of the pace of swing. For the grip rotation radius, the distance between the grip and the center of rotation is set such as cm. The target value of the grip turning radius provides an indication of whether it is compact or large. The angle of the bat 14 is set such as ... degrees. The target value of the angle of the bat 14 provides an indication of “the head is standing” and “the head is sleeping”. The angle of the rotation angle of the bat 14 is set such as ... degrees. The rotation angle of the bat 14 provides an indication of full swing or half swing. For setting, the user operates, for example, the touch screen panel 18. For example, as shown in FIG. 5, a blank for prompting input is displayed on the display panel 17. A numerical value may be entered in the blank. Individual target values are stored in the RAM 28, for example. When the setting of the target value is completed, the processing unit 25 instructs the measurement start of the inertial sensor 21 in step S3. The inertial sensor 21 starts measurement.

  By swinging, the batting form and the swing are repeated. A detection signal is output from the inertial sensor 21 during the swinging. When the user is holding, the “hold” is specified by the detection signal of the inertial sensor 21. In most cases, the “hold” is grasped when the grip is stationary. When the user swings the bat 14, a change appears in the detection signal of the inertial sensor 21. In the detection signal, acceleration other than gravitational acceleration is detected, and a change in angular velocity is specified. The data processing unit 22 processes the detection signal. The processed detection signal is sent from the communication unit 23 to the host terminal 13.

  In step S4, the communication unit 26 of the host terminal 13 receives a signal. The data acquisition unit 31 acquires output data of the sensor unit 12. The output data is stored in the RAM 28 in time series.

  In step S <b> 5, the swing analysis unit 32 calculates an analysis value of the swing speed, the swing time, the grip rotation radius, the bat 14 angle, and the bat 14 rotation angle for each individual swing. Here, the analysis value may be calculated with the selected item. The calculated analysis value is output from the swing analysis unit 32. The analysis value is stored in the RAM 28.

  In step S6, it is determined whether or not the swinging has been completed. If completed, the measurement of the inertial sensor 21 ends. If not finished, the measurement of the inertial sensor 21 is continued. Again, the “stand” is specified in the detection signal of the inertial sensor 21. The subsequent processing is repeated until the swing is completed. Even in the middle of swinging, the measurement of the inertial sensor 21 can be completed through the user's operation of the touch screen panel 18.

  When the measurement of the inertial sensor 21 is completed, the swing evaluation unit 33 performs an analysis of the swing group. The analysis may be started in response to the user's operation of the touch screen panel 18, for example. In analyzing a swing group, the swing evaluation unit 33 acquires a target value and an analysis value for each individual swing from the RAM 28 in step S7. In step S8, the swing evaluation unit 33 compares the analysis value with the target value. Thus, the comparison is performed for each swing, and the swing evaluation unit 33 counts the swing of the analysis value having a value better than the target value. When the comparison of all the swings is completed in step S9, the ratio of good analysis values to the total number of swings is calculated in step S10. The achievement level of the target is evaluated in the swing group according to the ratio. Thus, the entire swing group is evaluated. The analysis collected as a swing group is realized. The evaluation result is displayed on the display panel 17, for example. The evaluation result of the swing group is presented to the user.

  For example, when the swing speed is selected as the item, the proportion of the swing corresponding to the hit ball having the target strength or more is evaluated. When the swing time is selected as the item, it is evaluated how much rest is put in the middle of swinging. When a grip turning radius is selected for an item, it is evaluated how often a compact swing has been achieved. When the angle of the bat 14 is selected as an item, it is evaluated how much the head has been lowered (sleeped). When the rotation angle of the bat 14 is selected as the item, the full swing ratio is evaluated. Thus, the entire swing group is evaluated at the rate of the swing that has reached the target value.

(3) Operation of Swing Group Evaluation Device According to Second Embodiment The swing evaluation unit 33 determines whether the index given to each swing is good or bad (achievement level with respect to the target value) in order to indicate the degree of achievement with respect to the target value. Depending on the score, the total number of points may be specified. For example, when the target value of the swing time is set to 3 seconds, the swing evaluation unit 33 gives 20 points to the swing time within 3 seconds, and gives 5 points if it is within 10 seconds. If it exceeds, one point may be given. Thus, each swing is evaluated in stages according to the degree of achievement. The entire swing group is evaluated finely.

(4) Swing Group Evaluation Device According to Other Embodiments The swing group evaluation device 11 may select a specific swing group from the swing group. At this time, the user may specify a specific swing through the operation of the touch screen panel 18 with respect to the swing evaluation unit 33. When a corresponding signal is input from the touch screen panel 18 to the swing evaluation unit 33, the swing evaluation unit 33 evaluates the degree of achievement of the target with the designated set of swings. In this way, the touch screen panel 18 can draw out the evaluation of the achievement degree of the target with the designated collection of swings. The swing group can be evaluated with respect to the desired set of swings.

  The swing group evaluation device 11 may evaluate whether or not the target value has been reached for each individual swing. At this time, the user may specify a specific swing through the operation of the touch screen panel 18 with respect to the swing evaluation unit 33. Individual swing ratings can be presented to the user as specified.

  In the swing group evaluation device 11, not only the target value is input from the touch screen panel 18 as described above, but the swing evaluation unit 33 may set the target value according to the evaluation of the swing group. When the swing that has achieved the target value exceeds a certain ratio (for example, 90%), the target value may be raised. By doing so, the user's swing skill can be continuously improved. Conversely, the target value may be reduced if the swing that has achieved the target value falls below a low percentage (eg, 30%). By doing so, the next evaluation will increase, which can contribute to the maintenance of motivation. In addition, the target value may be set according to an expected achievement rate (a ratio of swings that have achieved the target in the swing group).

  Although the present embodiment has been described in detail as described above, it will be easily understood by those skilled in the art that many modifications can be made without departing from the novel matters and effects of the present invention. Therefore, all such modifications are included in the scope of the present invention. For example, a term described with a different term having a broader meaning or the same meaning at least once in the specification or the drawings can be replaced with the different term in any part of the specification or the drawings. Further, the configurations and operations of the sensor unit 12, the host terminal 13, the mount member 15, the smartphone 16, the display panel 17, the touch screen panel 18 and the like are not limited to those described in the present embodiment, and various modifications are possible. .

11 swing group evaluation device, 17 output unit (display panel), 18 input unit (touch screen panel),
21 inertial sensor, 32 analysis unit (swing analysis unit), 33 evaluation unit (swing evaluation unit).

Claims (9)

A swing analysis unit that calculates an analysis value of a specific item for each swing belonging to the swing group from the output of the inertial sensor,
An evaluation unit that compares the set target value with the analysis value and evaluates the swing group;
A swing group analyzing apparatus comprising:   The swing group analysis apparatus according to claim 1, wherein the evaluation unit specifies a ratio of the swing that has reached the target value in the swing group.   3. The swing group analysis apparatus according to claim 1, wherein the evaluation unit assigns a score for each individual swing according to an achievement level with respect to the target value. 4.   4. The swing group analysis apparatus according to claim 3, wherein the evaluation unit calculates a total number of points given for each individual swing.   5. The swing group analysis apparatus according to claim 1, further comprising an output unit that outputs an evaluation result of the swing group. 6.   6. The swing group analyzing apparatus according to claim 1, further comprising an input unit for inputting the target value.   7. The swing group analysis apparatus according to claim 1, wherein the evaluation unit updates the target value in accordance with the evaluation of the swing group. From the output of the inertial sensor, a procedure to calculate the analysis value of a specific item for each individual swing belonging to the swing group,
A procedure for evaluating the swing group by comparing the set target value and the analysis value;
A swing group analysis method comprising: From the output of the inertial sensor, a procedure to calculate the analysis value of a specific item for each individual swing belonging to the swing group,
A procedure for evaluating the swing group by comparing the set target value and the analysis value;
Swing group analysis program characterized by causing a computer to execute.

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