JP2018046987A - Motion analysis method, motion analysis device, and motion analysis display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motion analysis method, a motion analysis device, and a motion analysis display method that can teach a ball hitting direction.SOLUTION: A motion analysis method according to the present invention includes an acquisition step S10 of acquiring a ball target direction, an estimation step S20 of estimating a ball hitting direction from a state of a golf club 2 or a golfer 1, and a comparison information generation step S30 of comparing the target direction and the hitting direction and generating comparison information.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a motion analysis method, a motion analysis device, and a motion analysis display method.

  2. Description of the Related Art A screen golf system that performs golf practice using a virtual golf simulation apparatus that assumes an actual golf course golf course is known. In Patent Document 1, terrain information between a golf ball and a hole cup on a green is extracted from a green terrain information storage unit that stores green terrain information, and a green lie is considered based on the green terrain information. A virtual golf simulation apparatus that determines a putting direction and guides it to a golfer (subject) is disclosed.

Special table 2013-516211 gazette

  However, since the apparatus described in Patent Document 1 described above simulates an actual golf course and displays the putting direction on a screen in a room or the like, the putting direction cannot be taught in an actual golf course. There was a problem.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A motion analysis method according to this application example includes an acquisition step of acquiring a target direction of a hit ball, an estimation step of estimating a hit direction of a hit ball from the state of an exercise instrument or a subject, the target direction and the launch A comparison information generating step of comparing the directions and generating comparison information.

  According to this application example, the hit direction of the hit ball is estimated from the state of the exercise equipment or the subject, and the comparison information is generated by comparing with the target direction of the hit ball acquired in advance. Therefore, with reference to this comparison information, the state of the exercise equipment or the subject can be corrected so that the target direction of the hit ball and the launch direction of the hit ball coincide with each other, so that the subject can hit the ball in the target direction. it can.

  Application Example 2 In the motion analysis method according to the application example, the estimation step includes a posture information acquisition step of acquiring posture information of the exercise equipment or the subject, and a calculation of calculating the launch direction from the posture information. Preferably including a step.

  According to this application example, since the launch direction of the hit ball is calculated from the exercise equipment or the posture information of the subject, the subject can hit the ball with high accuracy in the target direction.

  Application Example 3 The motion analysis apparatus according to this application example includes an acquisition unit that acquires a target direction of a hit ball, an estimation unit that estimates a hit direction of a hit ball from the state of an exercise instrument or a subject, the target direction, and the launch A comparison information generation unit that compares the directions and generates comparison information.

  According to this application example, the acquisition unit acquires the target direction of the hit ball, the estimation unit estimates the hit direction of the hit ball from the state of the exercise equipment or the subject, and the target information of the hit ball acquired by the acquisition unit in the comparison information generation unit The comparison information is generated by comparing the hitting direction of the hit ball estimated by the estimation unit. Therefore, by referring to this comparison information, the subject can hit the ball in the target direction by correcting the state of the exercise equipment or the subject so that the target direction of the hit ball and the launch direction of the hit ball coincide with each other.

  Application Example 4 In the motion analysis apparatus according to the application example, it is preferable that the estimation unit calculates the launch direction from posture information of the exercise instrument or the subject.

  According to this application example, since the launch direction of the hit ball is calculated from the exercise equipment or the posture information of the subject, the subject can hit the ball with high accuracy in the target direction.

  Application Example 5 In the motion analysis apparatus according to the application example described above, it is preferable that the posture information is acquired by detecting the lowest point of a swing trajectory as an impact position when the exercise apparatus is swung.

  According to this application example, the hitting direction of the hit ball can be calculated with higher accuracy by detecting the lowest point of the swing trajectory as the impact position and acquiring the posture information.

  Application Example 6 In the motion analysis apparatus according to the application example described above, it is preferable that the posture information is acquired by detecting the maximum acceleration during the swing as the impact position when the exercise apparatus is swung.

  According to this application example, the hitting direction of the hit ball can be calculated with higher accuracy by detecting the maximum acceleration during the swing as the impact position and acquiring the posture information.

  Application Example 7 In the motion analysis apparatus according to the application example described above, it is preferable that a display unit that displays the comparison information is provided.

  According to this application example, since the comparison information is displayed, the subject can see the comparison information. Therefore, it is possible to correct the state of the exercise equipment or the posture of the subject with reference to the comparison information, and the subject can hit the ball in the target direction.

  Application Example 8 The motion analysis display method according to this application example displays the target direction of the hit ball and the hit direction of the hit ball estimated from the state of the exercise equipment or the subject.

  According to this application example, the target direction of the hit ball and the launch direction of the hit ball estimated from the state of the exercise equipment or the subject are displayed, so that the target direction of the hit ball and the hit direction of the hit ball coincide with each other. Alternatively, by correcting the state such as the posture of the subject, the subject can accurately hit the ball in the target direction.

  Application Example 9 In the motion analysis display method described in the application example, it is preferable that the target direction and the launch direction are displayed in different colors.

  According to this application example, the subject direction and the launch direction are displayed in different colors, so that the subject can easily understand the difference between the target direction and the launch direction.

  Application Example 10 In the motion analysis display method according to the application example described above, it is preferable that the difference between the target direction and the launch direction is displayed in an exaggerated manner.

  According to this application example, by displaying the difference between the target direction and the launch direction in an exaggerated manner, the subject can more easily understand the difference between the target direction and the launch direction.

FIG. 3 is a conceptual diagram schematically illustrating a motion analysis method according to the first embodiment. 1 is a conceptual diagram schematically showing a motion analysis apparatus according to a first embodiment. The enlarged front view which shows the structure of the head part of a golf club roughly. The flowchart which shows the exercise | movement analysis method which concerns on 1st Embodiment. The conceptual diagram which shows roughly the exercise | movement analysis display method which concerns on 1st Embodiment. The conceptual diagram explaining roughly the motion analysis method which concerns on the modification of 1st Embodiment. The conceptual diagram which shows roughly the motion analysis apparatus which concerns on 2nd Embodiment. The conceptual diagram which shows roughly the exercise | movement analysis display method which concerns on 2nd Embodiment.

  Hereinafter, as an embodiment of a motion analysis method, a motion analysis device, and a motion analysis display method, a method for teaching a subject to hit a ball at a golf course will be described as an example and described with reference to the drawings. Note that the drawings to be used are appropriately enlarged or reduced so that the part to be described can be recognized.

(First embodiment)
<Outline of motion analysis method>
First, the outline of the motion analysis method according to the first embodiment of the present invention will be described with reference to FIG.
FIG. 1 is a conceptual diagram schematically illustrating the motion analysis method according to the first embodiment.

  In the motion analysis method according to the present embodiment, as shown in FIG. 1, a golfer 1 as a subject holds and hits a golf club 2 as an exercise equipment with a ball 5 placed on the ground G of the golf course. In the address state, the motion analysis device 10 attached to the wrist of the golfer 1 obtains the target direction 7 (see FIG. 5) of the hit ball from the topographic information and map information of the golf course, and the motion in the address state of the golfer 1 The state of the golf club 2 as an instrument, that is, the posture information of the hitting surface 4 of the head unit 3 is detected by the posture information acquisition device 20 attached to the golf club 2, and the hitting direction 6 of the hit ball is estimated. Thereafter, comparison information that compares the acquired target direction 7 with the launch direction 6 estimated from the address state of the golfer 1 is generated and displayed on the motion analysis device 10. Therefore, the golfer 1 refers to this comparison information, and corrects the state of the golf club 2 in the address state of the golfer 1 (the posture of the hitting surface 4) so that the target direction 7 and the launch direction 6 of the hit ball coincide with each other. Thus, the golfer 1 can hit the ball 5 in the target direction 7.

<Motion analysis device>
Next, the motion analysis apparatus 10 according to the first embodiment will be described with reference to FIGS. 2 and 3.
FIG. 2 is a conceptual diagram schematically showing the motion analysis apparatus 10 according to the first embodiment. FIG. 3 is an enlarged front view schematically showing the structure of the head portion 3 of the golf club 2.

  As illustrated in FIG. 2, the motion analysis apparatus 10 according to the present embodiment includes an acquisition unit 11 that acquires the target direction 7 of the hit ball, and posture information of the hitting surface 4 of the head unit 3 that is transmitted from the posture information acquisition device 20. , Receiving section 12 for estimating hitting direction 6 of hitting ball, target direction 7 for hitting ball and launching direction 6 are compared, comparison information generating section 14 for generating comparison information, and comparison information generation And a display unit 15 that displays the comparison information generated by the unit 14.

  Further, since the motion analysis device 10 has a GPS (Global Positioning System) function, it can acquire position information of the golfer 1 to which the motion analysis device 10 is mounted.

  In the acquisition unit 11, the target direction 7 of the hit ball (see FIG. 5) based on the relationship between the position information of the golfer 1 based on the GPS function and the hole (cup) position information based on the input topographical information and map information of the golf course. ) To obtain the target direction 7 of the hit ball.

  The receiving unit 12 receives the posture information of the ball striking surface 4 of the head unit 3 transmitted from the posture information acquisition device 20 attached to the golf club 2 in the address state of the golfer 1.

  The posture information acquisition device 20 for detecting the posture information of the hitting surface 4 includes an inertial sensor in which an acceleration sensor and a gyro sensor are incorporated. The acceleration sensor can individually detect acceleration in three axial directions orthogonal to each other, and the gyro sensor can individually detect angular velocities around the three axes orthogonal to each other. Therefore, by specifying the acceleration and the angular velocity for each axis by the detection signal of the inertial sensor, it is possible to obtain the posture information of the hitting surface 4 such as the inclination of the hitting surface 4 and the orthogonal direction shown in FIG. The posture information acquisition device 20 is attached to the golf club 2 and fixed so as not to be relatively movable. Here, it is preferable that one of the detection axes of the inertial sensor of the posture information acquisition device 20 is aligned with the axis in the extending direction of the golf club 2 when the posture information acquisition device 20 is attached.

  The estimation unit 13 calculates the hitting direction 6 of the hit ball based on the posture information of the hitting surface 4 received by the receiving unit 12. That is, when the ball 5 hits the ball hitting surface 4 from the posture information of the hitting surface 4 in the address state of the golfer 1, the direction in which the ball 5 is hit is calculated based on the posture information of the hitting ball 4. The launch direction 6 is estimated.

  In the present embodiment, the posture information on the hitting surface 4 of the golf club 2 in the address state is detected and the hitting direction 6 of the hit ball is estimated. However, the present invention is not limited to this, and the posture information acquisition device 20 is not limited thereto. Thus, the attitude of the ball striking face 4 at that time may be detected with the lowest point of the swing locus when the golfer 1 grips and swings (goes swing) as the impact position. By detecting and acquiring the posture information of the hitting surface 4 with the lowest point of the swing trajectory at the time of the swing as the impact position, the hitting direction 6 of the hit ball can be estimated with higher accuracy. The lowest point of the swing locus is a point where the head part 3 of the golf club 2 is closest to the ground G.

  Further, the posture information acquisition device 20 may detect the posture of the hitting surface 4 at that time with the maximum acceleration during the swing as the impact position. By detecting and acquiring the posture information of the hitting surface 4 using the maximum acceleration during swinging as the impact position, the hitting direction 6 of the hitting ball can be estimated with higher accuracy.

  The comparison information generation unit 14 compares the target direction 7 of the hit ball acquired by the acquisition unit 11 with the launch direction 6 of the hit ball estimated by the estimation unit 13 to generate comparison information.

  The display unit 15 displays the comparison information generated by the comparison information generation unit 14. The comparison information displays the target direction 7 of the hit ball and the launch direction 6 with an arrow symbol, and displays the difference in angle between the target direction 7 of the hit ball and the launch direction 6 with a numerical value.

As described above, according to the motion analysis apparatus 10 according to the present embodiment, the following effects can be obtained.
The acquisition unit 11 acquires the target direction 7 of the hit ball calculated from the position of the golfer 1 and the position of the cup, and hits the ball based on the posture information on the hitting surface 4 of the golf club 2 detected by the posture information acquisition device 20 by the estimation unit 13. The comparison information generation unit 14 generates comparison information by comparing the target direction 7 of the hit ball acquired by the acquisition unit 11 with the hit direction 6 of the hit ball estimated by the estimation unit 13. Therefore, by referring to this comparison information, the golfer 2 corrects the position of the hitting surface 4 of the golf club 2 in the address state of the golfer 1 so that the target direction 7 of the hitting ball and the hitting direction 6 of the hitting ball coincide with each other. 1 can hit the ball 5 in the target direction 7.

  In addition, since the display unit 15 that displays the comparison information is provided, the golfer 1 can confirm the comparison information between the target direction 7 and the launch direction 6 of the hit ball generated by the comparison information generation unit 14. Therefore, referring to the comparison information, the posture of the hitting surface 4 of the golf club 2 in the address state of the golfer 1 can be corrected, and the golfer 1 can hit the ball 5 in the target direction 7.

<Motion analysis method>
Next, the motion analysis method according to the first embodiment will be described in detail with reference to FIG.
FIG. 4 is a flowchart showing the motion analysis method according to the first embodiment.

  First, in an acquisition process (step S10), the topography information and map information of a golf course are input into the motion analysis device 10 having a GPS (Global Positioning System) function, and the current golfer 1 position and hole ( The target direction 7 of the hit ball is calculated from the relationship with the cup) position.

Next, in the estimation step (step S20), when the golfer 1 hits the ball 5 from the state of the golf club 2 in which the posture information acquisition device 20 in the address state of the golfer 1 is mounted, for example, the posture of the hitting surface 4. The launch direction 6 of the hit ball is estimated.
The estimation process (step S20) includes an attitude information acquisition process (step S22) and a calculation process (step S24). First, in the posture information acquisition step (step S22), in the address state of the golfer 1, the receiving unit 12 receives the posture information of the ball striking surface 4 of the golf club 2 detected by the posture information acquisition device 20, thereby the ball striking surface. 4 posture information is acquired. Next, in the calculation step (step S24), the hitting direction 6 of the hit ball is calculated based on the acquired posture information of the hit ball 4.

  In the present embodiment, the posture information on the hitting surface 4 of the golf club 2 in the address state is detected and the hitting direction 6 of the hit ball is estimated. However, the present invention is not limited to this, and the posture information acquisition device 20 is not limited thereto. Thus, the attitude of the ball striking face 4 at that time may be detected by using the lowest point of the swing locus when the golfer 1 swings or the maximum acceleration during the swing as the impact position, and may be acquired as the posture information of the ball striking face 4. .

  Thereafter, in the comparison information generation step (step S30), the target direction 7 of the hit ball acquired from the current position of the golfer 1 or the hole (cup) position in the acquisition step (step S10), and the posture information in the estimation step (step S20). The hitting direction 6 of the hit ball estimated based on the posture information of the hitting surface 4 detected by the acquisition device 20 is compared, and comparison information such as a difference in angle between the target direction 7 and the hitting direction 6 is generated.

  Next, in the display step (step S40), comparison information between the target direction 7 and the launch direction 6 generated in the comparison information generation step (step S30) is displayed on the display unit 15. The comparison information displays the target direction 7 and the launch direction 6 of the hit ball with an arrow symbol on the display unit 15, and numerically displays the difference in angle between the target direction 7 of the hit ball and the launch direction 6.

As described above, according to the motion analysis method according to the present embodiment, the following effects can be obtained.
The target direction 7 of the hit ball calculated from the position information and the hole position information of the golfer 1 is acquired in the acquisition step (step S10), and the hitting surface 4 of the golf club 2 detected by the posture information acquisition device 20 in the estimation step (step S20). The striking direction 6 of the hit ball is calculated based on the posture information in step S30, and the target direction 7 of the hit ball acquired in the acquisition step (step S10) in the comparison information generation step (step S30) and Comparison information is generated by comparing the launch direction 6. Therefore, with reference to this comparison information, the golfer 1 can adjust the posture of the hitting surface 4 of the golf club 2 in the address state of the golfer 1 so that the target direction 7 of the hitting ball and the launching direction 6 coincide with each other. The ball 5 can be launched in the target direction 7.

<Exercise analysis display method>
Next, the motion analysis display method according to the first embodiment will be described with reference to FIG.
FIG. 5 is a conceptual diagram schematically showing the motion analysis display method according to the first embodiment.

  In the motion analysis display method according to the present embodiment, as shown in FIG. 5, the golf course topography information and map information, and the hit ball target calculated by the acquisition unit 11 are displayed on the display unit 15 of the wristwatch type motion analysis device 10. The direction 7 (solid arrow) and the hitting direction 6 (dashed arrow) estimated by the estimation unit 13 are displayed. The target direction 7 of the hit ball is a direction connecting the address position of the golfer 1 and the hole position, and is indicated by a solid arrow. Further, the hitting direction 6 of the hit ball is a direction from the address position of the golfer 1 calculated from the posture of the hitting surface 4 of the golf club 2 and is indicated by a broken arrow.

  In this embodiment, the target direction 7 and the launch direction 6 of the hit ball are indicated by solid and broken arrows, but the present invention is not limited to this, and the target direction 7 and the launch direction 6 of the hit ball are not limited thereto. The arrow color may be displayed in a different color. By displaying the target direction 7 and the launch direction 6 of the hit ball in different colors, the golfer 1 can easily understand the difference between the target direction 7 and the launch direction 6.

  Further, the difference between the target direction 7 and the launch direction 6 of the hit ball may be exaggerated. By displaying the difference in an exaggerated manner, for example, if the actual difference (the difference in angle between the target direction 7 and the launch direction 6) is 5 degrees, the size of the display unit 15 is small when the difference is displayed with an arrow. In such a case, it is difficult to confirm the difference. Therefore, when the difference is exaggerated and displayed as 15 degrees, even if the size of the display unit 15 is small, the golfer 1 can more easily grasp the difference between the target direction 7 and the launch direction 6. Further, a display method combining the display method of exaggerating the difference between the target direction 7 of the hit ball and the launch direction 6 and the display method of displaying the arrow colors of the target direction 7 and the hit direction 6 of the hit ball in different colors is combined. Also good.

As described above, according to the motion analysis display method according to the present embodiment, the following effects can be obtained.
The target direction 7 of the hit ball calculated from the position information and the hole position information of the golfer 1 and the hit direction 6 of the hit ball calculated based on the attitude information on the hitting surface 4 of the golf club 2 detected by the attitude information acquisition device 20 are displayed. Therefore, the posture of the hitting surface 4 of the golf club 2 in the address state of the golfer 1 can be corrected so that the target direction 7 of the hit ball and the launch direction 6 coincide. Therefore, the golfer 1 can hit the ball 5 in the target direction 7 with high accuracy.

  Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be added to the above-described embodiment. A modification will be described below.

(Modification)
Next, a motion analysis method according to a modification of the first embodiment of the present invention will be described with reference to FIG.
FIG. 6 is a conceptual diagram schematically illustrating a motion analysis method according to a modification of the first embodiment. In addition, about the component same as 1st Embodiment, the same number is attached | subjected and the overlapping description is abbreviate | omitted.

  Unlike the first embodiment in which the posture information acquisition device 20 is attached to the golf club 2 and the posture information of the hitting surface 4 of the golf club 2 is acquired, the motion analysis method according to the modification includes the posture information acquisition device 20a. It is mounted on the waist of the golfer 1, the posture information of the golfer 1 is acquired, and the hitting direction 6 of the hit ball is estimated based on the posture information. By acquiring the direction of the waist of the golfer 1 in the address state of the golfer 1 as posture information, an effect equivalent to that of the first embodiment can be obtained.

(Second Embodiment)
Next, a motion analysis device 10a and a motion analysis display method according to the second embodiment of the present invention will be described with reference to FIGS.
FIG. 7 is a conceptual diagram schematically showing the motion analysis apparatus 10a according to the second embodiment. FIG. 8 is a conceptual diagram schematically showing the motion analysis display method according to the second embodiment. In addition, about the component same as 1st Embodiment, the same number is attached | subjected and the overlapping description is abbreviate | omitted.

Unlike the motion analysis device 10 according to the first embodiment, the motion analysis device 10a according to the second embodiment does not include the display unit 15, transmits the generated comparison information, and has a reception function and a display function. And display on a display device 30 such as a tablet.
As shown in FIG. 7, the motion analysis device 10 a includes a transmission unit 16, and transmits the comparison information generated by the comparison information generation unit 14 from the transmission unit 16 toward the display device 30.

  As shown in FIG. 8, the display device 30 that has received the comparison information transmitted from the motion analysis device 10 a displays the golf course topographic information and map information, and the target direction of the hit ball calculated by the acquisition unit 11 as shown in FIG. 8. By displaying 7 (solid arrow) and the hitting direction 6 (broken line arrow) estimated by the estimation unit 13, the same effect as that of the first embodiment can be obtained.

  DESCRIPTION OF SYMBOLS 1 ... Golfer as a test subject, 2 ... Golf club as exercise equipment, 3 ... Head part, 4 ... Ball hitting surface, 5 ... Ball, 6 ... Launch direction, 7 ... Target direction, 10, 10a ... Motion analysis apparatus, 11 ... Acquisition unit, 12 ... reception unit, 13 ... estimation unit, 14 ... comparison information generation unit, 15 ... display unit, 16 ... transmission unit, 20, 20a ... posture information acquisition device, 30 ... display device.

Claims (10)

An acquisition step of acquiring the target direction of the hit ball;
An estimation step of estimating the launch direction of the hit ball from the state of the exercise equipment or the subject;
A comparison information generation step of comparing the target direction and the launch direction and generating comparison information;
A motion analysis method comprising: The estimation step includes a posture information acquisition step of acquiring posture information of the exercise equipment or the subject,
A calculation step of calculating the launch direction from the posture information;
The motion analysis method according to claim 1, comprising: An acquisition unit for acquiring a target direction of the hit ball;
An estimation unit that estimates the launch direction of the hit ball from the state of the exercise equipment or the subject,
A comparison information generating unit that compares the target direction with the launch direction and generates comparison information;
A motion analysis apparatus comprising:   The motion analysis apparatus according to claim 3, wherein the estimation unit calculates the launch direction from posture information of the exercise equipment or the subject.   The motion analysis apparatus according to claim 4, wherein the posture information is obtained by detecting a lowest point of a swing trajectory as an impact position when the exercise apparatus is swung.   The motion analysis apparatus according to claim 4, wherein the posture information is obtained by detecting a maximum acceleration during the swing as an impact position when the exercise apparatus is swung.   The motion analysis apparatus according to claim 3, further comprising a display unit that displays the comparison information. The target direction of the hit ball,
The launch direction of the hit ball estimated from the state of the exercise equipment or the subject,
A motion analysis display method characterized by displaying.   The motion analysis display method according to claim 8, wherein the target direction and the launch direction are displayed in different colors.   The motion analysis display method according to claim 8 or 9, wherein a difference between the target direction and the launch direction is displayed in an exaggerated manner.

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