JP2017189492A - Display method, swing analysis device, swing analysis system, swing analysis program, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display method allowing a user to easily and objectively recognize variations related to hitting directions of balls or curves of the balls by a plurality of swings.SOLUTION: A display method generates first analysis information related to at least one of individual hitting directions of balls and curves of the balls based on a plurality of data related to a plurality of swings output from an inertial sensor being attached to a user or exercise equipment swung by the user and measuring the plurality of swings by the user, generates a first area image 80A based on the first analysis information, the first area image 80A including a plurality of time-series area images 81A, 82A and 83A, and displays the plurality of time-series area images 81A, 82A and 83A on a coordinate system having at least two indices as axes.SELECTED DRAWING: Figure 36A

Description

  The present invention relates to a display method, a swing analysis device, a swing analysis system, a swing analysis program, and a recording medium.

  2. Description of the Related Art Conventionally, in sports such as golf, tennis, and baseball, means for improving the competitiveness by analyzing a locus of a swing of a golf club, a racket, a bat or the like as an exercise equipment and improving the locus is known. As an example of such means, for example, Patent Document 1 discloses a technique of photographing a swing with a video camera and performing analysis using the photographed moving image. For example, Patent Document 2 discloses a technique for analyzing a swing based on a multi-motion image obtained by superimposing and synthesizing a series of images of a swing that are continuously captured. For example, Patent Document 3 discloses a technique for performing swing analysis by detecting impact timing by hitting a ball during swing using a motion sensor.

JP-A-2015-123206 JP 2014-64125 A JP 2014-100341 A

  However, in the techniques described in Patent Document 1 and Patent Document 2, a device that captures (captures) moving images and continuous images (multi-motion images) becomes large, and thus the user can easily measure the swing. There is a problem that cannot be done. On the other hand, in the technique described in Patent Document 3, swing analysis can be easily performed by using a motion sensor mounted on an exercise device (golf club). There is a problem that it is difficult to recognize objectively.

  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 display method according to this application example includes a plurality of swings that are attached to a user or an exercise device that the user swings, and output from an inertial sensor that measures a plurality of swings by the user. Based on the data, first analysis information relating to at least one of the launch direction of each ball and the bending direction of the ball is generated, and based on the first analysis information, at least two indices are used as axes. The first region image is displayed in the coordinate system.

  According to the display method according to this application example, first analysis information in which at least one of the launch direction and the bending direction of a plurality of balls corresponding to a plurality of swings is estimated is generated. Then, based on the first analysis information, the first region image is displayed in a coordinate system having at least two indices as axes. By performing such a display, the user can change at least one of the launch direction and the bending direction of the plurality of balls corresponding to the plurality of swings, in other words, at least one of the launch direction and the bending direction of the plurality of balls. The user's current ability (level) can be objectively recognized including variations.

  Application Example 2 In the display method described in the application example, the two indexes are a head speed and a club pass when the first analysis information relates to a launch direction of the ball, and the first analysis When the information relates to how the ball bends, it is preferable that the information is a head speed and a relative face angle.

  According to this application example, it is possible to easily obtain, as image information, information related to the ball launch direction according to the head speed and club pass, and information related to how the ball bends according to the head speed and relative face angle. Thereby, the user can grasp | ascertain the capability (level) of a swing more efficiently.

  Application Example 3 In the display method described in the application example, it is preferable that a predetermined target area is displayed in the coordinate system.

  According to this application example, since a predetermined target area is displayed in the coordinate system, the user can determine the gap between the target and the current ability (level) with respect to the target in terms of the ball launch direction and the bending method. It is possible to objectively recognize the degree of inequality including variations.

  Application Example 4 In the display method according to the application example, the first area image includes a plurality of time-series area images, and the plurality of time-series area images are displayed on the coordinate system. Is preferred.

  According to this application example, a plurality of time-series area images included in the first area image are displayed in a coordinate system having at least two indices as axes. By performing such display, the user can visually recognize the transition of the first analysis information related to a plurality of swings as a plurality of time-series region images. Accordingly, the user can objectively recognize the current ability (level) of the user related to the plurality of swings including variations.

  Application Example 5 In the display method described in the application example, it is preferable that the display form is different for each time-series region image.

  According to this application example, the first region image is displayed with different display forms (for example, colors and line types) for each time-series region image. It is possible to easily recognize how the level has changed from the past to the present.

  Application Example 6 In the display method according to the application example described above, it is preferable that the area of the time-series region image has a size corresponding to the variation of the plurality of data related to the plurality of swings.

  According to this application example, the user can easily and objectively confirm the variation of the plurality of data related to the plurality of swings.

  Application Example 7 In the display method according to the application example described above, a second region image corresponding to the first region image and a first region image of a plurality of swings of a user different from the user Are preferably displayed in the coordinate system.

  According to this application example, by displaying the second region image corresponding to the first region image of the plurality of swings of the user different from the user displayed in the coordinate system, the user can A comparison can be performed on the second region image related to the swing of the second, and an objective evaluation can be performed.

  Application Example 8 In the display method according to the application example described above, the coordinate system is divided into a plurality of areas, and the ratio occupied by the second area image is displayed for each of the divided areas. Is preferred.

  According to this application example, the second direction in which at least one of the launch direction and the bending direction of each ball corresponding to a plurality of swings of another user included in each of the divided regions of the coordinate system is estimated. The occupancy of the area image, that is, the occupancy related to the estimated information of at least one of the ball launch direction and the bending direction for each swing is displayed. Thereby, the user can know the swing state of others. In addition, the user can objectively confirm the ball launch direction and the bias related to the bending method in his / her plurality of swings while comparing with the swings of others.

  Application Example 9 In the display method according to the application example described above, the coordinate system is divided into a plurality of regions, and the ratio of the first region image is displayed for each of the divided regions. Is preferred.

  According to this application example, the occupancy ratio of the first region image that estimates at least one of the launch direction and the bending direction of the ball corresponding to each swing included in each region into which the coordinate system is divided, That is, the occupation ratio related to the estimated information of at least one of the ball launch direction and the bending direction for each swing is displayed. Thereby, the user can objectively confirm the launch direction of the ball in a plurality of swings, the deviation regarding the bending method, and the like.

  Application Example 10 In the display method described in the application example, it is preferable to display a flying ball trajectory from a ball launch position to an arrival position on the coordinate system.

  According to this application example, the user can confirm the flying trajectory (movement trajectory) of the ball hit by the user on the image display, and can easily understand.

  Application Example 11 In the display method described in the application example, the first analysis information includes information on at least one of impact, V zone, efficiency, rotation, head speed, hand up, and down blow. It is preferable that

  According to this application example, the user can analyze at least one of impact, V-zone, efficiency, rotation, head speed, hand-up, and down-blow as analysis data of an important index indicating ability (level) regarding a plurality of swings. Can be obtained as detailed data. Thereby, the user can grasp the ability of the swing more efficiently.

  Application Example 12 In the display method described in the application example, it is preferable to display diagnostic information based on the first region image.

  According to this application example, diagnostic information based on the first region image is displayed, so that it is easy to understand the state of the swing, and it is possible to perform a suitable response to the improvement of the swing.

  Application Example 13 In the display method described in the application example, it is preferable to display a practice method based on the diagnosis information.

  According to this application example, since the practice method based on the diagnostic information is displayed, the user can perform efficient practice.

  Application Example 14 A swing analysis apparatus according to this application example relates to the plurality of swings output from an inertial sensor that is attached to a user or an exercise device that the user swings and measures a plurality of swings by the user. Based on a plurality of data, an analysis unit that generates first analysis information related to at least one of the launch direction of each ball and how the ball bends, and at least two indicators based on the first analysis information And a display unit for displaying the first region image in a coordinate system with the axis as the axis.

  According to the swing analysis apparatus according to this application example, based on the first analysis information generated by the analysis unit, the first direction in which at least one of the launch direction and the bending direction of the plurality of balls corresponding to the plurality of swings is estimated is estimated. One area image is displayed in a coordinate system having at least two indices as axes. By performing such a display, the user can change at least one of the launch direction and the bending direction of the plurality of balls corresponding to the plurality of swings, in other words, at least one of the launch direction and the bending direction of the plurality of balls. The user's current ability (level) can be objectively recognized including variations.

  [Application Example 15] In the swing analysis apparatus according to the application example, when the first analysis information relates to a launching direction of the ball, the two indexes are a head speed and a club pass. When the analysis information relates to how the ball bends, it is preferable that the analysis is a head speed and a relative face angle.

  According to this application example, it is possible to easily obtain, as image information, information related to the ball launch direction according to the head speed and club pass, and information related to how the ball bends according to the head speed and relative face angle. Thereby, the user can grasp | ascertain the capability (level) of a swing more efficiently.

  Application Example 16 In the swing analysis apparatus according to the application example described above, it is preferable that a predetermined target area is displayed in the coordinate system.

  According to this application example, since a predetermined target area is displayed in the coordinate system, the user can determine the gap between the target and the current ability (level) with respect to the target in terms of the ball launch direction and the bending method. It is possible to objectively recognize the degree of inequality including variations.

  Application Example 17 In the swing analysis device according to the application example described above, the first area image includes a plurality of time-series area images, and the plurality of time-series area images are displayed on the coordinate system. It is preferable.

  According to this application example, a plurality of time-series area images included in the first area image are displayed in a coordinate system having at least two indices as axes. By performing such display, the user can visually recognize the transition of the first analysis information related to a plurality of swings as a plurality of time-series region images. As a result, the user can objectively check how much the user's current ability (level) related to a plurality of swings is, including variations.

  Application Example 18 In the swing analysis device according to the application example described above, it is preferable that a display form is different for each time-series region image.

  According to this application example, the first region image is displayed with different display forms (for example, colors and line types) for each time-series region image. It is possible to easily recognize how the level has changed from the past to the present.

  Application Example 19 In the swing analysis device according to the application example described above, it is preferable that the area of the time-series region image has a size corresponding to the variation of the plurality of data related to the plurality of swings.

  According to this application example, the user can easily and objectively confirm the variation of the plurality of data related to the plurality of swings at a glance.

  Application Example 20 In the swing analysis device according to the application example described above, a second area image corresponding to the first area image and a first area of a plurality of swings of a user different from the user It is preferable to display the image in the coordinate system.

  According to this application example, by displaying the second region image corresponding to the first region image of the plurality of swings of the user different from the user displayed in the coordinate system, the user can A comparison can be performed on the second region image related to the swing of the second, and an objective evaluation can be performed.

  Application Example 21 In the swing analysis device according to the application example described above, the coordinate system is divided into a plurality of regions, and the ratio of the second region image is displayed for each of the divided regions. It is preferable.

  According to this application example, the second direction in which at least one of the launch direction and the bending direction of each ball corresponding to a plurality of swings of another user included in each of the divided regions of the coordinate system is estimated. The occupancy of the area image, that is, the occupancy related to the estimated information of at least one of the ball launch direction and the bending direction for each swing is displayed. Thereby, the user can know the swing state of others. In addition, the user can objectively confirm the ball launch direction and the bias related to the bending method in his / her plurality of swings while comparing with the swings of others.

  Application Example 22 In the swing analysis apparatus according to the application example described above, the coordinate system is divided into a plurality of areas, and the ratio of the first area image is displayed for each of the divided areas. It is preferable.

  According to this application example, the occupancy ratio of the first region image that estimates at least one of the launch direction and the bending direction of the ball corresponding to each swing included in each region into which the coordinate system is divided, That is, the occupation ratio related to the estimated information of at least one of the ball launch direction and the bending direction for each swing is displayed. Thereby, the user can objectively confirm the launch direction of the ball in a plurality of swings, the deviation regarding the bending method, and the like.

  Application Example 23 In the swing analysis apparatus according to the application example described above, it is preferable that a flying ball trajectory from the launch position to the arrival position of the ball is displayed on the coordinate system.

  According to this application example, the user can confirm the flying trajectory (movement trajectory) of the ball hit by the user on the image display, and can easily understand.

  [Application Example 24] In the swing analysis apparatus according to the application example, the first analysis information includes information on at least one of impact, V zone, efficiency, rotation, head speed, hand up, and down blow. It is preferably included.

  According to this application example, the user can analyze at least one of impact, V-zone, efficiency, rotation, head speed, hand-up, and down-blow as analysis data of an important index indicating ability (level) regarding a plurality of swings. Can be obtained as detailed data. Thereby, the user can grasp | ascertain the capability (level) of a swing more efficiently.

  Application Example 25 In the swing analysis device according to the application example described above, it is preferable to display diagnostic information based on the first region image.

  According to this application example, diagnostic information based on the first region image is displayed, so that it is easy to understand the state of the swing, and it is possible to perform a suitable response to the improvement of the swing.

  Application Example 26 In the swing analysis device according to the application example described above, it is preferable to display a practice method based on the diagnosis information.

  According to this application example, since the practice method based on the diagnostic information is displayed, the user can perform efficient practice.

  Application Example 27 A swing analysis system according to this application example includes the swing analysis device according to any one of the application examples described above and an inertial sensor.

  According to the swing analysis system of this application example, the processing unit launches a plurality of balls corresponding to the plurality of swings based on the first analysis information generated by the analysis unit based on the data related to the plurality of swings. And first analysis information in which at least one of the bending methods is estimated, and based on the first analysis information, the first region image is displayed in a coordinate system having at least two indices as axes. By performing such a display on the display unit, the user can vary the launch direction of the plurality of balls corresponding to the plurality of swings and / or variations in at least one of the bending methods, in other words, the launch direction and the plurality of balls. It is possible to objectively recognize the degree of the current ability (level) of the user related to at least one of them, including variations. Therefore, by using this swing analysis system, the user can practice efficiently.

  Application Example 28 A swing analysis program according to this application example relates to the plurality of swings output from an inertial sensor that is attached to a user or an exercise device that the user swings and measures a plurality of swings by the user. Based on the plurality of data, generating a first analysis information relating to at least one of the launch direction of each ball and the bending direction of the ball, and at least two indices based on the first analysis information And causing the computer to execute a step of displaying the first region image in a coordinate system having axes.

  According to the swing analysis program of this application example, based on the first analysis information generated based on the data relating to the plurality of swings, at least the launch direction of the plurality of balls corresponding to the plurality of swings and the bending method First analysis information in which one is estimated is generated. Then, based on the first analysis information, the first region image is displayed in a coordinate system having at least two indices as axes. By performing such a display, the user can change at least one of the launch direction and the bending direction of the plurality of balls corresponding to the plurality of swings, in other words, at least one of the launch direction and the bending direction of the plurality of balls. The user's current ability (level) can be objectively recognized including variations.

  Application Example 29 A recording medium according to this application example is attached to a user or an exercise device that the user swings, and a plurality of swing media output from an inertial sensor that measures a plurality of swings by the user. Generating the first analysis information related to at least one of the launch direction of each ball and how to bend the ball based on the data of the above, and at least two indices based on the first analysis information And storing a program for causing a computer to execute the step of displaying the first region image in a coordinate system.

  According to the recording medium of this application example, by causing the computer to execute based on the recorded program, the plurality of swings can be performed based on the first analysis information generated based on the data related to the plurality of swings. First analysis information is generated that estimates at least one of the launch direction and the bending direction of a corresponding plurality of balls. Then, based on the first analysis information, the first region image is displayed in a coordinate system having at least two indices as axes. By performing such a display, the user can change at least one of the launch direction and the bending direction of the plurality of balls corresponding to the plurality of swings, in other words, at least one of the launch direction and the bending direction of the plurality of balls. The user's current ability (level) can be objectively recognized including variations.

The figure which shows the structural example of the exercise | movement analysis system of this embodiment. The figure which shows a sensor unit and a swing analyzer. The figure which shows an example of the mounting position and direction of a sensor unit. The figure which shows the procedure of the operation | movement performed before a user hits a ball. The figure which shows an example of the input screen of body information and golf club information. Explanatory drawing about swing operation | movement. The figure which shows an example of the selection screen of swing analysis data. The figure which shows an example of the edit screen of the input data used as the object of swing diagnosis. The figure which shows an example of a swing diagnostic screen. The figure which shows the structural example of a sensor unit and a swing analyzer. The top view which looked at the golf club and sensor unit at the time of a user's still view from the negative side of the X-axis. The characteristic view which shows an example of the time change of a triaxial angular velocity. The characteristic view which shows the time change of the synthetic | combination value of a triaxial angular velocity. The characteristic view which shows the time change of differentiation of a synthetic value. The figure which shows a shaft plane and a Hogan plane. The figure which looked at the sectional view which cut the shaft plane with the YZ plane from the negative side of the X-axis. The figure which looked at the cross-sectional view which cut the Hogan plane in the YZ plane from the negative side of the X-axis. The figure for demonstrating a face angle and a club path (incidence angle). The figure which shows an example of the time change of the shaft axis rotation angle from a swing start (back swing start) to an impact. The figure which shows an example of the time change of the speed of the grip in a downswing. The figure for demonstrating the definition of the attack angle (1st angle) of the hit | damage part in an impact. The flowchart which shows an example of the procedure of a swing analysis process (swing analysis method). The figure which shows the structural example of a swing diagnostic apparatus. The figure which shows an example of the relationship between a shaft plane and Hogan plane, and a some area | region. The figure which shows an example of the outline of a shaft plane, a Hogan plane, and a user's attitude | position. The figure which shows an example of a V zone score table. The figure which shows an example of a rotation point number table. The figure which shows an example of an impact score table. The figure which shows an example of a down blow score table. The figure which shows an example of an upper blow score table. The figure which shows an example of a swing efficiency score table. The figure which shows an example of the curvature | score table of a ball | bowl. The figure which shows an example of the launch direction score table of a ball | bowl. The flowchart which shows an example of the process sequence of the swing analyzer related to a swing diagnosis process. The flowchart which shows an example of the procedure of a swing diagnostic process (swing diagnostic method). The flowchart which shows an example of the procedure of the process which calculates the score and total score of a some item. The figure which shows the example of a display of "the launch direction" as the example 1 of a display. The histogram of the other example of a display which concerns on "the launch direction". The figure which shows the example of a display of "bending" as the example 2 of a display. The histogram of the other example of a display concerning "bending". The figure explaining the example of a display which shows swing trajectory RS of the club head of a right-handed test subject, and the swing trace LS of the club head of a left-handed test subject. The figure which shows the example of a display which reversed one side of the swing locus | trajectory used as a mirror image shape by the difference of a test subject's dominant hand, and made the other non-inverted. The figure which shows "the launch direction" and "bending" as the example 3 of a display. The figure which shows the modification of the example 3 of a display. The figure which shows "the launch direction" and "bending" as the example 4 of a display. The figure which displayed the target area in the "launch direction" as the example 5 of a display. The figure which displayed the target area on "bending" as the example 6 of a display. The figure which shows "the launch direction" and "bending" as the example 7 of a display. The figure which shows the modification 1 which concerns on the other display method of an analysis result. The figure which shows the modification 2 which concerns on the other display method of an analysis result. Explanatory drawing of V zone (a 1st virtual surface and a 2nd virtual surface). The modification of a 1st virtual surface and a 2nd virtual surface. Another modification of a 1st virtual surface and a 2nd virtual surface. The figure which shows the structural example of the exercise | movement analysis system which concerns on a modification. The figure which shows the example of arrangement | positioning of the sensor unit which concerns on a modification, and a swing analyzer. It is a figure which shows an example which comprised the exercise | movement analysis apparatus with the head mounted display. It is a figure which shows an example which comprised the exercise | movement analysis apparatus with the list type terminal.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The embodiments described below do not unduly limit the contents of the present invention described in the claims. Also, not all of the configurations described below are essential constituent requirements of the present invention.

1. Motion analysis system 1-1. Configuration of Motion Analysis System Hereinafter, golf swing analysis will be described as an example of motion analysis. FIG. 1 is a diagram illustrating a configuration example of a motion analysis system according to the present embodiment. As shown in FIG. 1, the motion analysis system (swing analysis system) 1 of the present embodiment includes a sensor unit (an example of an inertial sensor) 10 and a swing analysis device (an example of a motion analysis device) 20. Communication between the sensor unit 10 and the swing analysis device 20 may be wireless communication or wired communication. As shown in FIG. 2, the swing analysis device 20 is a personal computer 20 a, a portable device 20 b such as a smartphone or a tablet, or various information such as a wearable terminal such as a head mounted display (HMD) or a wrist device. This is realized by a terminal (client terminal).

  The motion analysis system (swing analysis system) 1 may include a swing diagnosis device 30 separately from the swing analysis device 20. However, the swing diagnosis device 30 may be included in the swing analysis device 20. The swing diagnosis apparatus 30 may be realized by a server that processes a request from the swing analysis apparatus 20. The swing analysis device 20 and the swing diagnosis device 30 may be connected via the network 40. The network 40 may be a wide area network (WAN) such as the Internet or a local area network (LAN). Alternatively, the swing analysis device 20 and the swing diagnosis device 30 may communicate without going through the network 40 by, for example, short-range wireless communication or wired communication.

  As shown in FIG. 2, the sensor unit 10 can measure, for example, accelerations in the directions of three axes that are orthogonal to each other and angular velocities around the axes of the three axes that are orthogonal to each other. For example, it is mounted on a golf club 3 as an instrument.

  For example, as shown in FIG. 3, the sensor unit 10 has three detection axes (x-axis, y-axis, z-axis) intersecting each other (ideally orthogonal to each other) so as to be aligned with each other. One example) is attached to 3. In FIG. 3, for example, the y axis is aligned with the longitudinal direction of the shaft of the golf club 3 (longitudinal direction of the golf club 3), and the x axis is aligned with the target direction of the hit ball (the hit target direction). It is attached. Preferably, the sensor unit 10 is attached at a position close to a grip that is difficult to receive an impact at the time of hitting a ball and is difficult to receive a centrifugal force during a swing. The shaft is a portion of the handle excluding the head (striking portion) 3a of the golf club 3, and includes a grip. However, the sensor unit 10 may be attached to a part of the user 2 (for example, a hand or a glove), or may be attached to an accessory such as a wristwatch.

  The user 2 performs a swing motion by hitting a golf ball 4 which is an example of a ball or a swing motion by swinging according to a predetermined procedure. FIG. 4 is a diagram showing a procedure of operations performed until the user 2 hits the ball in the present embodiment. As shown in FIG. 4, the user 2 first performs an input operation such as body information of the user 2 and information (golf club information) regarding the golf club 3 used by the user 2 via the swing analysis device 20 (S1). .

  FIG. 5 is a diagram illustrating an example of an input screen for body information and golf club information displayed on the display unit 25 (see FIG. 10) of the swing analysis apparatus 20. In step S1 of FIG. 4, the user 2 inputs physical information such as height, gender, age, and country on the input screen shown in FIG. 5, and enters golf club information such as club length (shaft length) and count. input. The information included in the body information is not limited to this. For example, the body information may include information on at least one of the length of the arm and the length of the leg instead of or together with the height. Similarly, the information included in the golf club information is not limited to this. For example, the golf club information may not include information on either the club head or the count, or may include other information.

  Next, the user 2 performs a measurement start operation (operation for causing the sensor unit 10 to start measurement) via the swing analysis device 20 (S2). The user 2 receives a notification (for example, a voice notification) instructing to take the address posture (basic posture before the start of the swing) from the swing analysis device 20 (S3 is Y), and then the longitudinal direction of the shaft of the golf club 3 Takes the attitude of the address so as to be perpendicular to the target line (the target direction of the hit ball), and rests for a predetermined time or more (S4). Next, after receiving notification (for example, notification by voice) that permits the swing from the swing analysis device 20 (S5 is Y), the user 2 performs a swing motion and hits the golf ball 4 (S6). The present embodiment is not necessarily limited to hitting a ball, but can also be applied to swinging and may have a function of detecting timing corresponding to a hit ball.

  When the user 2 performs the measurement start operation in step S2 of FIG. 4, the swing analysis apparatus 20 transmits a measurement start command to the sensor unit 10, and the sensor unit 10 receives the measurement start command and receives the triaxial acceleration and the triaxial angular velocity. Start measuring. The sensor unit 10 measures the triaxial acceleration and the triaxial angular velocity at a predetermined cycle (for example, 1 ms), and sequentially transmits the measured data to the swing analysis apparatus 20.

  The swing analysis device 20 notifies the user 2 of the permission to start the swing shown in step S5 of FIG. 4, and then the swing motion in which the user 2 hits the golf club 3 based on the measurement data of the sensor unit 10. (Step S6 in FIG. 4) is analyzed.

  As shown in FIG. 6, the swing operation performed by the user 2 in step S <b> 6 of FIG. 4 starts after the swing (back swing) is started from the address state (stationary state), and then the shaft of the golf club 3 is leveled during the back swing. The halfway back, the top switching from the backswing to the downswing, and the halfway down in which the shaft of the golf club 3 becomes horizontal during the downswing, and the action to hit the golf ball 4 (hit) Contains. Then, the swing analysis device 20 generates swing analysis data including the time (date and time) when the swing was performed, the identification information and sex of the user 2, the type of the golf club 3, and information on the analysis result of the swing motion, and the network 40 (See FIG. 1) to transmit to the swing diagnosis apparatus 30.

  The swing diagnosis device 30 receives and stores the swing analysis data transmitted from the swing analysis device 20 via the network 40. Therefore, every time the user 2 performs a swing motion according to the procedure of FIG. 4, the swing analysis data generated by the swing analysis device 20 is stored in the swing diagnosis device 30, and a swing analysis data list is constructed.

  In the present embodiment, when the user 2 activates the swing diagnosis application via the operation unit 23 (see FIG. 10) of the swing analysis device 20, the swing analysis device 20 communicates with the swing diagnosis device 30, and the swing analysis device 20. For example, a swing analysis data selection screen as shown in FIG. 7 is displayed on the display unit 25. This selection screen displays the time (date and time), the type of golf club used, and the analysis result of the swing for each swing analysis data of the user 2 included in the swing analysis data list stored in the swing diagnosis device 30. Some indicator values are included.

  At the left end of the selection screen shown in FIG. 7, there are check boxes associated with each swing analysis data. After the user 2 checks any one check box through the operation of the swing analysis device 20, Press the OK button at the bottom of this selection screen. Thereby, the swing analysis device 20 communicates with the swing diagnosis device 30, and the swing analysis data associated with the check box checked on the selection screen of FIG. As shown in FIG. 8, an edit screen of input data to be subjected to swing diagnosis is displayed.

  In the input data editing screen shown in FIG. 8, values obtained on the basis of the selected swing analysis data are set as initial values for the gender, the type of golf club (whether it is a driver or an iron), and the swing index. include. Each index included in the selection screen shown in FIG. 7 (the area to which the head 3a position belongs at the halfway back, the area to which the head 3a position belongs at the halfway down, the face angle, the club path (incident angle), and the top time The meaning and calculation method of the shaft shaft rotation angle, head speed, grip deceleration rate, and grip deceleration time rate will be described later.

  In the input data editing screen shown in FIG. 8, the input data including the sex, the type of golf club, and each index value can be edited. The user 2 presses the diagnosis start button at the bottom of the input data editing screen without editing or after editing the input data via the operation unit 23 (see FIG. 10) of the swing analysis device 20. Thereby, the swing analysis device 20 transmits the input data when the diagnosis start button is pressed to the swing diagnosis device 30.

  The swing diagnosis apparatus 30 receives this input data and calculates the level (first analysis information) of a plurality of items using the input data. For example, the swing diagnosis apparatus 30 has, for example, 5 of “V zone”, “rotation”, “impact”, “down blow” or “upper blow”, and “swing efficiency (efficiency)” shown in the radar chart of FIG. For each item, the level may be calculated, for example, with a maximum of 5 points. The meaning and calculation method of these five items will be described later. The swing diagnosis apparatus 30 may also calculate a total point of swing from each level of these five items. Then, the swing diagnosis device 30 transmits the calculated level and total point information of the plurality of items to the swing analysis device 20. The “level” may be expressed by “1, 2, 3,...”, “A, B, C,...”, “◯, Δ, ×,. It may be expressed by a score. Further, the levels (first analysis information) by the swing diagnosis device 30 are “V zone”, “rotation”, “impact”, “down blow” or “upper blow”, and “swing efficiency (efficiency)”. Information relating to at least one of the seven items including “head speed” and “hand-up” may be included in one item.

  The swing analysis apparatus 20 receives information on the levels and total points of a plurality of items, and causes the display unit 25 to display, for example, a swing diagnosis screen as shown in FIG. The swing diagnosis screen shown in FIG. 9 includes input data information on the left side. This input data information is input data when the diagnosis start button is pressed on the input data editing screen shown in FIG. 8, that is, the swing diagnosis device 30 diagnoses the swing (calculates the levels and total points of the five items). It is the information of the data used for. In addition, the swing diagnosis screen shown in FIG. 9 includes a radar chart indicating points as levels of five items in the vicinity of the center, and information on total points on the right side.

  The user 2 can grasp the levels and total points of a plurality of items as the diagnosis result for the input data on the left by using the swing diagnosis screen shown in FIG. In particular, if the user 2 presses the diagnosis start button without editing the input data on the input data editing screen shown in FIG. 8, the user 2 can grasp the advantages and weak points of his swing from the swing diagnosis screen shown in FIG. be able to. On the other hand, the user 2 edits the input data and presses the diagnosis start button on the input data editing screen shown in FIG. 8, for example, how much index should be improved to overcome the weak point, for example. Can be grasped. In the following, an example in which “levels” of a plurality of items are expressed by “points” will be described. However, “1, 2, 3,...”, “A, B, C,. Needless to say, it can be easily replaced with examples such as “○, Δ, ×,.

  Further, the swing analysis device 20 receives information on the levels and total points of a plurality of items related to a plurality of swings, and based on the plurality of information (data), the launch direction of each ball and the bending of the ball First analysis information related to at least one of the two is generated, and based on the first analysis information, a plurality of time-series area images 81A, 82A, 83A, 81B, and 82B described later with reference to FIGS. , 83B, first area images 80A, 80B are generated. The swing analysis apparatus 20 displays a plurality of time-series area images 81A, 82A, 83A, 81B, 82B, and 83B together in a coordinate system having at least two indices as axes.

  By displaying such a time-series area image, the user 2 can change the launch direction of the plurality of balls corresponding to the plurality of swings and at least one of the bending variations, in other words, the launch direction of the plurality of balls, and The user's current ability (level) relating to at least one of the bending methods can be specifically and objectively visually confirmed and confirmed including variations.

1-2. Configuration of Sensor Unit and Swing Analysis Device FIG. 10 is a diagram illustrating a configuration example of the sensor unit 10 and the swing analysis device 20. As shown in FIG. 10, in the present embodiment, the sensor unit 10 includes an acceleration sensor 12, an angular velocity sensor 14, a signal processing unit 16, and a communication unit 18. However, the sensor unit 10 may have a configuration in which some of these components are appropriately deleted or changed, or other components are added as appropriate.

  The acceleration sensor 12 measures acceleration generated in each of three axis directions that intersect (ideally orthogonal) with each other, and outputs a digital signal (acceleration data) corresponding to the magnitude and direction of the measured three axis acceleration. .

  The angular velocity sensor 14 measures the angular velocity generated around each of the three axes intersecting each other (ideally orthogonal), and outputs a digital signal (angular velocity data) corresponding to the magnitude and direction of the measured three-axis angular velocity. Output.

  The signal processing unit 16 receives acceleration data and angular velocity data from the acceleration sensor 12 and the angular velocity sensor 14, respectively, attaches time information to the storage unit (not shown), and stores the measurement data (acceleration data and angular velocity data). Is attached with time information to generate packet data in accordance with the communication format, and outputs the packet data to the communication unit 18.

  The acceleration sensor 12 and the angular velocity sensor 14 each have three axes that coincide with the three axes (x axis, y axis, z axis) of the orthogonal coordinate system (sensor coordinate system) defined for the sensor unit 10. Although it is ideal to be attached to the unit 10, an error in the attachment angle actually occurs. Therefore, the signal processing unit 16 performs a process of converting the acceleration data and the angular velocity data into data in the xyz coordinate system using a correction parameter calculated in advance according to the attachment angle error.

  Further, the signal processing unit 16 may perform temperature correction processing of the acceleration sensor 12 and the angular velocity sensor 14. Alternatively, a temperature correction function may be incorporated in the acceleration sensor 12 and the angular velocity sensor 14.

  The acceleration sensor 12 and the angular velocity sensor 14 may output analog signals. In this case, the signal processing unit 16 converts the output signal of the acceleration sensor 12 and the output signal of the angular velocity sensor 14 to A / Measurement data (acceleration data and angular velocity data) is generated by D conversion, and packet data for communication may be generated using these.

  The communication unit 18 transmits the packet data received from the signal processing unit 16 to the swing analysis device 20, and receives various control commands such as a measurement start command from the swing analysis device 20 and sends the control data to the signal processing unit 16. Etc. The signal processing unit 16 performs various processes according to the control command.

  As shown in FIG. 10, in this embodiment, the swing analysis apparatus 20 includes a processing unit 21, a communication unit 22, an operation unit 23, a storage unit 24, a display unit 25, a sound output unit 26, and a communication unit 27. Has been. However, the swing analysis apparatus 20 may have a configuration in which some of these components are appropriately deleted or changed, or other components are added as appropriate.

  The communication unit 22 receives the packet data transmitted from the sensor unit 10 and performs processing to send to the processing unit 21, processing to transmit a control command from the processing unit 21 to the sensor unit 10, and the like.

  The operation unit 23 performs processing to acquire data corresponding to the operation of the user 2 and send the data to the processing unit 21. The operation unit 23 may be, for example, a touch panel display, a button, a key, a microphone, or the like.

  The storage unit 24 includes, for example, various IC memories such as a ROM (Read Only Memory), a flash ROM, and a RAM (Random Access Memory), a recording medium such as a hard disk and a memory card, and the like. The storage unit 24 stores programs for the processing unit 21 to perform various calculation processes and control processes, various programs and data for realizing application functions, and the like.

  In the present embodiment, the storage unit 24 stores a swing analysis program 240 that is read by the processing unit 21 and that executes a swing analysis process. The swing analysis program 240 may be stored in advance in a nonvolatile recording medium (computer-readable recording medium), or the processing unit 21 swings from a server (not shown) or the swing diagnosis device 30 via the network 40. The analysis program 240 may be received and stored in the storage unit 24.

  In the present embodiment, the storage unit 24 stores golf club information 242, body information 244, sensor mounting position information 246, and swing analysis data 248. For example, the user 2 operates the operation unit 23, and the specification information of the golf club 3 to be used (for example, the shaft length, the position of the center of gravity, the lie angle, the face angle, the loft angle, etc.) from the input screen of FIG. Or at least a part of the information), and the inputted specification information may be used as the golf club information 242. Alternatively, the user 2 inputs the model number of the golf club 3 (or is selected from the model number list) in step S1 of FIG. 4 and is input from the specification information for each model number stored in advance in the storage unit 24. The specification information of the model number may be used as the golf club information 242.

  Further, for example, the user 2 may operate the operation unit 23 to input physical information from the input screen of FIG. 5, and the input physical information may be the physical information 244. Further, for example, in step S1 of FIG. 4, the user 2 operates the operation unit 23 to input the distance between the mounting position of the sensor unit 10 and the grip end of the golf club 3, and the input distance information is obtained. The sensor mounting position information 246 may be used. Alternatively, information on the predetermined position may be stored in advance as sensor mounting position information 246 on the assumption that the sensor unit 10 is mounted at a predetermined position (for example, a distance of 20 cm from the grip end).

  The swing analysis data 248 includes information on the result of the swing motion analysis by the processing unit 21 (swing analysis unit 211), along with the time (date and time) at which the swing was performed, the identification information and sex of the user 2, and the type of the golf club 3. It is data.

  The storage unit 24 is used as a work area of the processing unit 21, and temporarily stores data acquired by the operation unit 23, calculation results executed by the processing unit 21 according to various programs, and the like. Furthermore, the memory | storage part 24 may memorize | store the data which require long-term preservation | save among the data produced | generated by the process of the process part 21. FIG.

The display unit 25 displays the processing results of the processing unit 21 as characters, graphs, tables, animations, and other images. The display unit 25 may be, for example, a CRT, LCD, touch panel display, head mounted display (HMD), or the like. In addition, you may make it implement | achieve the function of the operation part 23 and the display part 25 with one touchscreen type display.

  For example, as illustrated in FIG. 36A described later, the display unit 25 uses a plurality of time-series area images 81A, 82A, and 83A included in the first area image 80A as axes. Display together in the coordinate system. Further, as shown in FIG. 36A, the display unit 25 displays a second region image 90A corresponding to the first region image 80A of a plurality of swings by another user different from the user 2 together. it's shown. Note that a detailed description of the display example will be described later, and thus the description thereof is omitted here.

  In addition, as a function of the operation unit 23 in the display unit 25, display contents can be switched or enlarged / reduced by touching the display unit 25 (screen touch) or the like. In this way, by designating the display contents to the operation unit 23 of the display unit 25, it is possible to directly instruct and reliably and easily instruct.

  The sound output unit 26 outputs the processing result (analysis information) of the processing unit 21 to present it as sound information such as sound and buzzer sound. The sound output unit 26 may be, for example, a speaker or a buzzer.

  The communication unit 27 performs data communication with the communication unit 32 (see FIG. 23) of the swing diagnosis apparatus 30 via the network 40. For example, the communication unit 27 performs a process of receiving the swing analysis data 248 from the processing unit 21 and transmitting the swing analysis data 248 to the communication unit 32 of the swing diagnosis apparatus 30 after the end of the swing analysis process. Further, for example, the communication unit 27 receives information necessary for display of the selection screen in FIG. 7 from the communication unit 32 of the swing diagnosis apparatus 30 and sends the information to the processing unit 21 or the selection information on the selection screen in FIG. The process which receives from the process part 21 and transmits to the communication part 32 of the swing diagnostic apparatus 30 is performed. For example, the communication unit 27 performs processing for receiving information necessary for displaying the input data editing screen of FIG. 8 from the communication unit 32 of the swing diagnosis apparatus 30 and sending the information to the processing unit 21. Further, for example, the communication unit 27 performs a process of receiving input data when the diagnosis start button on the input data editing screen in FIG. 8 is pressed from the processing unit 21 and transmitting the input data to the communication unit 32 of the swing diagnosis apparatus 30. . Further, for example, the communication unit 27 transmits information necessary for displaying the swing diagnosis screen of FIG. 9 (information on diagnosis results based on input data (scores and total points of a plurality of items)) to the communication unit 32 of the swing diagnosis apparatus 30. Is received and sent to the processing unit 21.

  The processing unit 21 performs processing for transmitting a control command to the sensor unit 10 via the communication unit 22 and various types of calculation processing for data received from the sensor unit 10 via the communication unit 22 according to various programs. Further, the processing unit 21 performs a process of reading the swing analysis data 248 from the storage unit 24 and transmitting it to the swing diagnosis apparatus 30 via the communication unit 27 according to various programs. Further, the processing unit 21 transmits various types of information to the swing diagnosis device 30 via the communication unit 27 in accordance with various programs, and display data of the first analysis information based on the information received from the swing diagnosis device 30. First area image data corresponding to the first area image 80A (see, for example, FIG. 36A) can be formed and output. The processing unit 21 performs other various control processes.

  By executing the swing analysis program 240, the processing unit 21 performs a data acquisition unit 210, a swing analysis unit 211 as an analysis unit, an image data generation unit 212, a storage processing unit 213, a display processing unit 214, and a sound output processing unit 215. Function as. The processing unit 21 has a function as a computer.

  In particular, in the present embodiment, the processing unit 21 executes the swing analysis program 240 to thereby obtain a data acquisition unit 210, a swing analysis unit 211 as an analysis unit, an image data generation unit 212, a storage processing unit 213, and a display processing unit. It functions as 214 and the sound output process part 215, and performs the process (swing analysis process) which analyzes the swing motion of the user 2.

  The data acquisition unit 210 receives the packet data received from the sensor unit 10 by the communication unit 22, acquires time information and measurement data from the received packet data, and performs processing to send to the storage processing unit 213. In addition, the data acquisition unit 210 receives information necessary for displaying various screens (the screens of FIGS. 7, 8, and 9) received by the communication unit 27 from the swing diagnosis apparatus 30, and receives an image data generation unit Processing to send to 212 is performed.

  The storage processing unit 213 performs read / write processing of various programs and various data for the storage unit 24. For example, the storage processing unit 213 associates the time information received from the data acquisition unit 210 with the measurement data and stores the information in the storage unit 24, various information calculated by the swing analysis unit 211, the swing analysis data 248, and the like. Processing to be stored in the storage unit 24 is performed.

  The swing analysis unit 211 as an analysis unit uses the measurement data output from the sensor unit 10 (measurement data stored in the storage unit 24), data from the operation unit 23, etc. The swing analysis data 248 is used as the first analysis information including the time (date and time) when the swing was performed, the identification information and sex of the user 2, the type of the golf club 3, and the analysis result of the swing motion. Generate the process. In particular, in the present embodiment, the swing analysis unit 211 calculates the value of each index of the swing as at least part of the information on the analysis result of the swing motion. Note that the swing analysis data 248 as the first analysis information includes information related to at least one of impact, V zone, efficiency (swing efficiency), rotation, head speed, hand up, and down blow. . By obtaining such information, the user 2 can grasp the ability of the swing more efficiently.

  The swing analysis unit 211 may calculate at least one virtual plane as a swing index. For example, the at least one virtual plane includes a shaft plane SP (first virtual plane), which will be described later, and a Hogan plane HP (second virtual plane) that forms a predetermined angle with the shaft plane SP. As this index, “shaft plane SP” and “Hogan plane HP” may be calculated.

  Further, the swing analysis unit 211 may calculate the position of the head 3a of the golf club 3 at the first timing during the backswing as a swing index. For example, the first timing is a halfway back in which the longitudinal direction of the golf club 3 is in the direction along the horizontal direction during the backswing, and the swing analysis unit 211 uses the “halfway back” described later as this index. The “position of the head 3a at the time” may be calculated.

  Further, the swing analysis unit 211 may calculate the position of the head 3a of the golf club 3 at the second timing during the downswing as a swing index. For example, the second timing is when the golf club 3 is halfway down during the downswing in which the longitudinal direction of the golf club 3 is along the horizontal direction, and the swing analysis unit 211 uses the “halfway down” described later as this index. The “position of the head 3a at the time” may be calculated.

  In addition, the swing analysis unit 211 may calculate an index based on the incident angle of the head 3a of the golf club 3 at impact (at the time of hitting) as an index of swing. For example, the swing analysis unit 211 may calculate “club path (incident angle) ψ” described later as this index.

  In addition, the swing analysis unit 211 may calculate an index based on the inclination of the head 3a of the golf club 3 at impact (at the time of hitting) as an index of swing.

  The swing analysis unit 211 may calculate an index based on the speed of the golf club 3 (head 3a) at impact (at the time of hitting) as an index of swing. For example, the swing analysis unit 211 may calculate “head speed” described later as the index.

Further, the swing analysis unit 211 uses the longitudinal direction of the shaft as a rotation axis as a swing index, and rotates around the rotation axis of the shaft of the golf club 3 at a predetermined timing from the start of the back swing to the impact (at the time of hitting). An index based on the rotation angle (hereinafter referred to as the major axis rotation) may be calculated. The rotation angle around the major axis of the golf club 3 may be an angle obtained by rotating the golf club 3 around the major axis from a reference timing to the predetermined timing. The reference timing may be at the start of the backswing or at the address. Further, the predetermined timing may be when shifting from the backswing to the downswing (at the top). For example, the swing analysis unit 211 may calculate a “shaft shaft rotation angle θ _top at the time of _top ”, which will be described later, as this index.

In addition, the swing analysis unit 211 may calculate an index based on the amount of deceleration of the grip of the golf club 3 during the downswing as a swing index. For example, the swing analysis unit 211 may calculate a “grip deceleration rate R _V ” described later as this index. The “grip deceleration rate R _V ” is also referred to as “natural uncock rate” or “natural uncock rate”.

In addition, the swing analysis unit 211 may calculate an index based on the deceleration period of the grip of the golf club 3 in the downswing as the swing index. For example, the swing analysis unit 211 may calculate a “grip deceleration time rate R _T ” described later as the index.

  The swing analysis unit 211 may calculate an index based on the deceleration timing of the grip of the golf club 3 in the downswing as a swing index. For example, the swing analysis unit 211 calculates the natural uncock timing (“natural release timing”), which is the timing of the movement of the head 3a of the golf club 3 being accelerated by decelerating the grip side of the golf club 3 as the index. May be. The natural uncock timing is an index indicating the switching timing in a state where the energy accumulated in the top swing is switched to release and transmitted to the golf club 3.

  Further, the swing analysis unit 211 uses a region sandwiched between a shaft plane SP (first imaginary plane) and a Hogan plane HP (second imaginary plane) called “V zone” as an index of swing (see FIGS. 15 and 17). ), An index related to the position of the head 3a during half-way back (HWB) and an index related to the position of the head 3a during half-way down (HWD) may be calculated.

  The swing analysis unit 211 may calculate an index based on the lie angle at the time of hitting and the lie angle at the time of addressing in the head 3a of the golf club 3 as an index of swing.

  The swing analysis unit 211 may calculate an index based on the “face angle” and the “attack angle” of the head 3a of the golf club 3 as a swing index.

  However, the swing analysis unit 211 may not calculate values of some of these indexes as appropriate, or may calculate values of other indexes.

  The image data generation unit 212 performs processing for generating image data corresponding to the image displayed on the display unit 25. For example, the image data generation unit 212 corresponds to the selection screen illustrated in FIG. 7, the input data editing screen illustrated in FIG. 8, and the swing diagnosis screen illustrated in FIG. 9 based on various types of information received by the data acquisition unit 210. Image data to be generated.

  The image data generation unit 212 generates the correlation diagram image data related to the analysis result of the ball launch direction shown in FIG. 36A, for example, and the image displayed on the display unit 25 (for example, the ball A process of generating image data of another user corresponding to the launch direction) is performed. For example, the image data generation unit 212, based on the analysis data of a plurality of swings by other users stored in the storage unit 24, for example, image data (for example, image data corresponding to the second region image 90A illustrated in FIG. 36A ( Second region image data) is generated.

  The display processing unit 214 performs processing for causing the display unit 25 to display various images (including characters and symbols in addition to images corresponding to the image data generated by the image data generation unit 212). For example, based on the image data generated by the image data generation unit 212, the display processing unit 214 displays the selection screen illustrated in FIG. 7, the input data editing screen illustrated in FIG. 8, and the swing illustrated in FIG. Display the diagnosis screen. Further, for example, the image data generation unit 212 may display an image, a character, or the like for notifying the user 2 of permission to start the swing on the display unit 25 in step S5 of FIG. In addition, for example, the display processing unit 214 may display text such as characters and symbols indicating the analysis result by the swing analysis unit 211 automatically or in response to an input operation of the user 2 after the swing operation of the user 2 is completed. Information may be displayed on the display unit 25. Alternatively, a display unit is provided in the sensor unit 10, and the display processing unit 214 transmits image data to the sensor unit 10 via the communication unit 22, and displays various images and characters on the display unit of the sensor unit 10. It may be displayed.

  Further, the display processing unit 214 instructs the second region image 90A of another user together with the first region images 80A and 80B of the user 2 displayed as an image on the display unit 25 according to the instruction of the user 2. , 90B may be displayed.

  The display processing unit 214 also displays the first region images 80A and 80B and the second region images 90A and 90B displayed as images on the display unit 25, for example, with respect to the ball launch direction and the ball bending. Comments can be displayed. The comment may be diagnostic information based on the first region images 80A and 80B, or information indicating a practice method based on the diagnostic information. Thus, the comment is preferably advice information for the analysis result.

  As described above, the diagnosis information and the practice method based on the diagnosis information are displayed as comments, so that the user 2 can easily understand the state of the swing and perform a suitable response to the improvement of the swing. And can practice efficiently.

  The sound output processing unit 215 performs processing for causing the sound output unit 26 to output various sounds (including sound and buzzer sound). For example, the sound output processing unit 215 may cause the sound output unit 26 to output a sound for notifying the user 2 of permission to start the swing in step S5 of FIG. In addition, for example, the sound output processing unit 215 generates a sound or a sound indicating the analysis result by the swing analysis unit 211 automatically or in response to an input operation of the user 2 after the swing operation of the user 2 is completed. You may make it output from the output part 26. FIG. Alternatively, a sound output unit is provided in the sensor unit 10, and the sound output processing unit 215 transmits various sound data and audio data to the sensor unit 10 via the communication unit 22, and the sound output unit of the sensor unit 10. Various sounds and sounds may be output.

  Note that a vibration mechanism may be provided in the swing analysis device 20 or the sensor unit 10, and various information may be converted into vibration information by the vibration mechanism and notified to the user 2.

1-3. Swing analysis processing In this embodiment, the position of the head 3a of the golf club 3 at the time of addressing (at rest) is the origin, the target line indicating the target direction of the hit ball is the X axis, and the axis on the horizontal plane perpendicular to the X axis is Y An XYZ coordinate system (global coordinate system) is defined in which the Z axis is an axis and a vertically upward direction (the direction opposite to the direction of gravitational acceleration). Then, the swing analysis unit 211 uses the measurement data (acceleration data and angular velocity data) of the sensor unit 10 to calculate each index value, and the sensor unit from the address time in the XYZ coordinate system (global coordinate system). 10 positions and orientations are calculated in time series. Further, the swing analysis unit 211 detects each timing of the swing start, top, and impact shown in FIG. 6 using measurement data (acceleration data or angular velocity data) of the sensor unit 10. Then, the swing analysis unit 211 uses the time series data of the position and orientation of the sensor unit 10 and the timings of the start of the swing, the top, and the impact, for example, each index of the swing (for example, V shown in the radar chart of FIG. 9). The values of zone, efficiency (swing efficiency), rotation, impact, down blow (or upper blow), etc. are calculated, and swing analysis data 248 is generated.

1-3-1. Calculation of the position and orientation of the sensor unit 10 When the user 2 performs the operation of step S4 in FIG. 4, first, the swing analysis unit 211 continuously sets the threshold value for the amount of change in acceleration data measured by the acceleration sensor 12 for a predetermined time. If not, it is determined that the user 2 is stationary with the address posture. Next, the swing analysis unit 211 calculates an offset amount included in the measurement data using the measurement data (acceleration data and angular velocity data) within the predetermined time. Next, the swing analysis unit 211 subtracts an offset amount from the measurement data to perform bias correction, and uses the bias-corrected measurement data to detect a sensor during the swing operation of the user 2 (during operation in step S6 in FIG. 4). The position and orientation of the unit 10 are calculated.

  Specifically, first, the swing analysis unit 211 uses the acceleration data measured by the acceleration sensor 12, the golf club information 242 and the sensor mounting position information 246 when the user 2 is stationary in the XYZ coordinate system (global coordinate system). The position (initial position) of the sensor unit 10 at the time of addressing is calculated.

FIG. 11 is a plan view of the golf club 3 and the sensor unit 10 viewed from the negative side of the X axis when the user 2 is stationary (addressing). The position 61 of the head 3a of the golf club 3 is the origin O (0, 0, 0), and the coordinates of the grip end position 62 are (0, G _Y , G _Z ). Since the user 2 performs the operation of step S4 in FIG. 4, the grip end position 62 and the initial position of the sensor unit 10 have an X coordinate of 0 and exist on the YZ plane. As shown in FIG. 11, since the gravitational acceleration 1G is applied to the sensor unit 10 when the user 2 is stationary, the y-axis acceleration y (0) measured by the sensor unit 10 and the inclination angle of the shaft of the golf club 3 (the length of the shaft) The relationship between the direction and the angle α formed by the horizontal plane (XY plane) is expressed by Expression (1).

Therefore, the swing analysis unit 211 can calculate the inclination angle α from Equation (1) using arbitrary acceleration data within an arbitrary time at the time of addressing (at rest).

Next, the swing analysis unit 211 subtracts the distance L _SG between the sensor unit 10 and the grip end included in the sensor mounting position information 246 from the shaft length L ₁ included in the golf club information 242 to obtain the sensor unit 10. And a distance L _SH between the head 3a and the head 3a. Furthermore, the swing analysis unit 211 determines the position of the distance L _SH from the position 61 (origin O) of the head 3a in the direction specified by the shaft inclination angle α (the negative direction of the y-axis of the sensor unit 10). The initial position of.

  Then, the swing analysis unit 211 integrates subsequent acceleration data and calculates the coordinates of the position moved from the initial position of the sensor unit 10 in time series.

  In addition, the swing analysis unit 211 calculates the posture (initial posture) of the sensor unit 10 when the user 2 is stationary (at the time of address) in the XYZ coordinate system (global coordinate system) using the acceleration data measured by the acceleration sensor 12. To do. Since the user 2 performs the operation of step S4 in FIG. 4, the direction of the x-axis of the sensor unit 10 coincides with the X-axis of the XYZ coordinate system at the time of the address of the user 2 (at rest), and the sensor unit 10 Since the y-axis is on the YZ plane, the swing analysis unit 211 can identify the initial posture of the sensor unit 10 from the inclination angle α of the shaft of the golf club 3.

  Then, the swing analysis unit 211 performs a rotation calculation using the angular velocity data measured by the subsequent angular velocity sensor 14 and calculates the change in posture of the sensor unit 10 from the initial posture in time series. The attitude of the sensor unit 10 can be expressed by, for example, rotation angles (roll angle, pitch angle, yaw angle) around the X axis, Y axis, and Z axis, a quaternion (quaternion), and the like.

  The signal processing unit 16 of the sensor unit 10 may calculate the offset amount of the measurement data and perform bias correction of the measurement data, or the acceleration sensor 12 and the angular velocity sensor 14 have a bias correction function incorporated therein. It may be. In these cases, the bias correction of the measurement data by the swing analysis unit 211 becomes unnecessary.

1-3-2. Detection of Swing Start, Top and Impact Timing First, the swing analysis unit 211 detects the timing (impact timing) when the user 2 hits the ball using the measurement data. For example, the swing analysis unit 211 may calculate a composite value of measurement data (acceleration data or angular velocity data) and detect impact timing (time) based on the composite value.

Specifically, first, the swing analysis unit 211 calculates a value of a combined value n ₀ (t) of angular velocities at each time t using angular velocity data (bias corrected angular velocity data at each time t). . For example, assuming that the angular velocity data at time t is x (t), y (t), and z (t), the swing analysis unit 211 uses the following equation (2) to calculate the angular velocity composite value n ₀ (t). calculate.

Next, the swing analysis unit 211 converts the combined value n ₀ (t) of angular velocities at each time t into a combined value n (t) normalized (scaled) to a predetermined range. For example, assuming that the maximum value of the combined value of angular velocities during the measurement data acquisition period is max (n ₀ ), the swing analysis unit 211 sets the combined value n ₀ (t) of the angular velocities from 0 to 0 according to the following equation (3). It is converted into a composite value n (t) normalized to a range of 100.

  Next, the swing analysis unit 211 calculates a differential dn (t) of the combined value n (t) after normalization at each time t. For example, assuming that the measurement period of the triaxial angular velocity data is Δt, the swing analysis unit 211 calculates the differential (difference) dn (t) of the synthesized value of angular velocities at time t by the following equation (4).

  FIG. 12 shows an example of triaxial angular velocity data x (t), y (t), z (t) when the user 2 swings and hits the golf ball 4. In FIG. 12, the horizontal axis represents time (msec) and the vertical axis represents angular velocity (dps).

FIG. 13 shows the equation (3) after calculating the composite value n ₀ (t) of the triaxial angular velocity from the triaxial angular velocity data x (t), y (t), z (t) in FIG. 12 according to the equation (2). FIG. 6 is a graph showing a composite value n (t) normalized to 0 to 100 according to FIG. In FIG. 13, the horizontal axis represents time (msec), and the vertical axis represents the combined value of angular velocities.

  FIG. 14 is a graph showing the differential dn (t) calculated from the combined value n (t) of the triaxial angular velocities in FIG. In FIG. 14, the horizontal axis represents time (msec), and the vertical axis represents the differential value of the combined value of the triaxial angular velocities. 12 and 13, the horizontal axis is displayed in 0 to 5 seconds. In FIG. 14, the horizontal axis is in 2 seconds to 2.8 seconds so that the change in the differential value before and after the impact can be seen. it's shown.

Next, the swing analysis unit 211 detects the previous time as the impact time t _impact (impact timing) among the time when the value of the derivative dn (t) of the combined value becomes the maximum and the minimum ( (See FIG. 14). In a normal golf swing, it is considered that the swing speed becomes maximum at the moment of impact. Then, since it is considered that the value of the combined value of angular velocities also changes according to the swing speed, the swing analysis unit 211 has a timing at which the differential value of the combined value of angular velocities becomes maximum or minimum in a series of swing operations (that is, The timing at which the differential value of the combined value of the angular velocities becomes the maximum positive value or the minimum negative value) can be regarded as the impact timing. Since the golf club 3 vibrates due to the impact, it is considered that the timing at which the differential value of the combined value of the angular velocities is the maximum and the timing at which the differential is the minimum occurs. it is conceivable that.

Next, the swing analysis unit 211 detects the time of the minimum point where the composite value n (t) approaches 0 before the _impact time t _impact as the top time t _top (top timing) (see FIG. 13). ). In a normal golf swing, it is considered that after the start of the swing, the operation is temporarily stopped at the top, and then the swing speed is gradually increased to cause an impact. Therefore, the swing analysis unit 211 can recognize the timing at which the combined value of the angular velocities approaches 0 and becomes minimum before the impact timing as the top timing.

Next, the swing analysis unit 211 sets a section in which the composite value n (t) is equal to or less than a predetermined threshold before and after the _top time t _top as the top section, and the composite value n (t) is before the start time of the top section. The last time that is equal to or less than a predetermined threshold is detected as the time t _start of the swing start (back swing start) (see FIG. 13). In a normal golf swing, it is unlikely that the swing motion starts from a stationary state and stops until the top. Therefore, the swing analysis unit 211 can recognize the last timing before the combined value of the angular velocities is equal to or less than the predetermined threshold before the top section as the timing for starting the swing motion. Note that the swing analysis unit 211 may detect the time of the minimum point at which the composite value n (t) approaches 0 (zero) before the _top time t _top as the swing start time t _start .

  Note that the swing analysis unit 211 can detect the timing of the start of the swing, the top, and the impact in the same manner using the triaxial acceleration data.

1-3-3. Calculation of Shaft Plane and Hogan Plane The shaft plane is specified by the target line (target direction of the hit ball) and the longitudinal direction of the shaft of the golf club 3 at the address before the user 2 starts swinging (stationary state). It is a virtual surface. In addition, the Hogan Plane, at the time of the user 2 address, imaginary line that connects the vicinity of the shoulder of the user 2 (such as the shoulder or base of the neck) and the golf club head 3a (or the golf ball 4) and the target line (the hit ball). 2nd virtual surface specified by (target direction).

  FIG. 15 is a diagram illustrating a shaft plane and a Hogan plane. FIG. 15 also shows the X axis, Y axis, and Z axis of the XYZ coordinate system (global coordinate system).

  As shown in FIG. 15, in this embodiment, the first line segment 51 as the first axis along the target direction of the hit ball and the second line as the second axis along the longitudinal direction of the shaft of the golf club 3 are used. And a virtual plane having four vertices U1, U2, S1, and S2 is defined as a shaft plane SP (first virtual plane). In this embodiment, the position 61 of the head 3a of the golf club 3 at the time of addressing is the origin O (0, 0, 0) of the XYZ coordinate system, and the second line segment 52 is the position 61 ( This is a line segment connecting the origin O) and the grip end position 62. The first line segment 51 is a line segment having U1 and U2 on the X axis as both ends and the origin O as a midpoint. Since the user 2 performs the operation of step S4 of FIG. 4 at the time of addressing, the shaft of the golf club 3 becomes perpendicular to the target line (X axis), so the first line segment 51 is the length of the shaft of the golf club 3 This is a line segment orthogonal to the direction, that is, a line segment orthogonal to the second line segment 52. The swing analysis unit 211 calculates the coordinates of the four vertices U1, U2, S1, and S2 in the XYZ coordinate system as the shaft plane SP.

Specifically, first, the swing analysis unit 211 uses the tilt angle α and the shaft length L ₁ included in the golf club information 242 to determine the coordinates (0, G) of the grip end position 62 of the golf club 3. _Y , G _Z ) is calculated. As shown in FIG. 11, the swing analysis unit 211 can calculate G _Y and G _{Z according} to the equations (5) and (6) using the shaft length L ₁ and the inclination angle α. .

Next, the swing analysis unit 211 multiplies the coordinates (0, G _Y , G _Z ) of the grip end position 62 of the golf club 3 by the scale factor S, and the midpoint between the vertex S1 and the vertex S2 of the shaft plane SP. The coordinates (0, S _Y , S _Z ) of S3 are calculated. That is, the swing analysis unit 211 calculates S _Y and S _{Z according} to the equations (7) and (8), respectively.

16 is a cross-sectional view of the shaft plane SP of FIG. 15 taken along the YZ plane, as viewed from the negative side of the X axis. As shown in FIG. 16, the length of the line segment connecting the midpoint S3 of the vertex S1 and the vertex S2 and the origin O (the width of the shaft plane SP in the direction perpendicular to the X axis) is the length of the second line segment 52. the S times the length L _1. The scale factor S is set to a value such that the trajectory of the golf club 3 during the swing motion of the user 2 fits in the shaft plane SP. For example, when the length of the arm of the user 2 is L ₂ , the width S × L ₁ in the direction orthogonal to the X axis of the shaft plane SP is ₂ of the sum of the shaft length L ₁ and the arm length L 2. You may set the scale factor S like Formula (9) so that it may be doubled.

Further, the arm length L ₂ of the user ₂ has a correlation with the height L _{0 of} the user 2, and is represented by a correlation equation such as Equation (10) when the user 2 is male based on statistical information. When the user 2 is a woman, it is expressed by a correlation equation such as equation (11).

Therefore, the swing analysis unit 211 calculates the length L ₂ of the user's arm according to the formula (10) or the formula (11) using the height L ₀ and the gender of the user 2 included in the body information 244. Can do.

Next, the swing analysis unit 211 uses the coordinates of the midpoint S3 (0, S _Y , S _Z ) and the width of the shaft plane SP in the X-axis direction (the length of the first line segment 51) UL. The coordinates of the vertex U1 of the SP (-UL / 2, 0, 0), the coordinates of the vertex U2 (UL / 2, 0, 0), the coordinates of the vertex S1 (-UL / 2, S _Y , S _Z ), The coordinates (UL / 2, S _Y , S _Z ) are calculated. The width UL in the X-axis direction is set to a value such that the trajectory of the golf club 3 during the swing motion of the user 2 is within the shaft plane SP. For example, the width UL in the X-axis direction may be set equal to the width S × L ₁ in the direction orthogonal to the X-axis, that is, twice the sum of the shaft length L ₁ and the arm length L _2. Good.

  In this way, the swing analysis unit 211 can calculate the coordinates of the four vertices U1, U2, S1, and S2 of the shaft plane SP.

  As shown in FIG. 15, in the present embodiment, the first line segment 51 as the first axis and the third line segment 53 as the third axis are included, and U1, U2, H1, and H2 are 4 A virtual plane having two vertices is defined as a Hogan plane HP (second virtual plane). The third line segment 53 is a line segment that connects a predetermined position 63 near the line segment that connects the shoulders of the user 2 and the position 61 of the head 3 a of the golf club 3. However, the third line segment 53 may be a line segment that connects the predetermined position 63 and the position of the golf ball 4. The swing analysis unit 211 calculates the coordinates of the four vertices U1, U2, H1, and H2 in the XYZ coordinate system as the Hogan plane HP.

Specifically, first, the swing analysis unit 211 determines the user 2 based on the coordinates (0, G _Y , G _Z ) of the grip end position 62 of the golf club 3 and the physical information 244 at the time of addressing (at rest). The predetermined position 63 is estimated using the arm length L ₂ and its coordinates (A _X , A _Y , A _Z ) are calculated.

FIG. 17 is a cross-sectional view of the Hogan plane HP in FIG. 15 cut along the YZ plane as viewed from the negative side of the X axis. In FIG. 17, the midpoint of the line segment connecting both shoulders of the user 2 is defined as a predetermined position 63, and the predetermined position 63 exists on the YZ plane. Accordingly, the X coordinate A _X of the predetermined position 63 is zero. Then, as shown in FIG. 17, the swing analysis unit 211 has a predetermined position 63 that is a position obtained by moving the grip end position 62 of the golf club 3 by the length L ₂ of the arm of the user 2 in the positive direction of the Z axis. Presume that there is. Therefore, the swing analysis unit 211 sets the Y coordinate A _Y of the predetermined position 63 to the same value as the Y coordinate G _Y of the grip end position 62. Further, the swing analysis unit 211 uses the Z coordinate A _Z of the predetermined position 63 as the sum of the Z coordinate G _Z of the grip end position 62 and the arm length L _{2 of} the user 2 as shown in Expression (12). calculate.

Next, the swing analysis unit 211 multiplies the Y coordinate A _Y and the Z coordinate A _Z of the predetermined position 63 by the scale factor H, respectively, and coordinates (0, 0) of the midpoint H3 between the vertex H1 and the vertex H2 of the Hogan plane HP. H _Y , H _Z ) is calculated. That is, the swing analysis unit 211 calculates H _Y and H _{Z according} to the equations (13) and (14), respectively.

As shown in FIG. 17, the length of the line segment connecting the midpoint H3 of the vertex H1 and the vertex H2 and the origin O (the width in the direction orthogonal to the X axis of the Hogan plane HP) is the length of the third line segment 53. the H times the length L _3. This scale factor H is set to a value such that the trajectory of the golf club 3 during the swing motion of the user 2 falls within the Hogan plane HP. For example, the Hogan plane HP may have the same shape and size as the shaft plane SP. In this case, the width H × L ₃ in the direction orthogonal to the X axis of the Hogan plane HP matches the width S × L ₁ in the direction orthogonal to the X axis of the shaft plane SP, and the length L of the shaft of the golf club 3 _This is twice the sum of ₁ and the arm length L ₂ of the user 2. Therefore, the swing analysis unit 211 can calculate the scale factor H by the equation (15).

In addition, the swing analysis unit 211 can calculate the length L ₃ of the third line segment 53 by using the Y coordinate A _Y and the Z coordinate _AZ of the predetermined position 63 according to the equation (13).

Next, the processing unit 21 uses the coordinates (0, H _Y , H _Z ) of the midpoint H3 and the width (the length of the first line segment 51) UL of the Hogan plane HP in the X-axis direction UL. coordinates of vertex _{H1 (-UL / 2, H Y} , H Z), H2 coordinates _{(UL / 2, H Y,} H Z) is calculated. Since the two vertices U1 and U2 of the Hogan plane HP are common to the shaft plane SP, the swing analysis unit 211 does not need to newly calculate the coordinates of the vertices U1 and U2 of the Hogan plane HP.

  In this way, the swing analysis unit 211 can calculate the coordinates of the four vertices U1, U2, H1, and H2 of the Hogan plane HP.

An area sandwiched between the shaft plane SP (first imaginary plane) and the Hogan plane HP (second imaginary plane) is called a “V zone”, and the position of the head 3a of the golf club 3 during backswing or downswing. Depending on the relationship with the V zone, the trajectory (ball) of the hit ball can be estimated to some extent. For example, when the head 3a of the golf club 3 is present in a space lower than the V zone at a predetermined timing during the backswing or downswing, it is likely to be a hook-type hit ball. Further, when the head 3a of the golf club 3 is present in a space higher than the V zone at a predetermined timing during the back swing or the down swing, it is likely to be a slicing ball. In this embodiment, as is apparent from FIG. 17, the angle β formed between the shaft plane SP and the Hogan plane HP depends on the shaft length L ₁ of the golf club 3 and the arm length L ₂ of the user 2. It is determined. That is, the angle β is not a fixed value, but is determined according to the type of the golf club 3 and the body of the user 2. Therefore, the shaft plane SP and the Hogan plane HP (V zone) are more suitable as indices for diagnosing the swing of the user 2. Is calculated.

1-3-4. Calculation of head 3a position at halfway back and halfway down The position of head 3a at halfway back is the position of head 3a at the moment of halfway back, immediately before halfway back or just after halfway back, The head 3a position at the time of halfway down is the position of the head 3a at the moment of halfway down, immediately before halfway down or immediately after halfway down.

First, the swing analysis unit 211 uses the position and posture of the sensor unit 10 at each time t from the swing start time t _start to the impact time t _{impact, and} then the position of the head 3a and the position of the grip end at each time t. Calculate

Specifically, at each time t, the swing analysis unit 211 sets the position of the head 3a away from the position of the sensor unit 10 by a distance _{LSH in} the positive direction of the y-axis specified by the attitude of the sensor unit 10. The coordinates of the position of the head 3a are calculated as the position. As described above, the distance L _SH is the distance between the sensor unit 10 and the head 3a. In addition, the swing analysis unit 211 sets the position at the time of each time t away from the position of the sensor unit 10 by the distance L _{SG in} the negative direction of the y axis specified by the attitude of the sensor unit 10 as the grip end position. Calculate the coordinates of the grip end position. As described above, the distance L _SG is the distance between the sensor unit 10 and the grip end.

  Next, the swing analysis unit 211 detects the halfway back timing and the halfway down timing using the coordinates of the position of the head 3a and the coordinates of the position of the grip end.

Specifically, the swing analysis unit 211 calculates a difference ΔZ between the Z coordinate of the position of the head 3a and the Z coordinate of the grip end position at each time t from the swing start time t _start to the impact time t _impact. To do. Then, the swing analysis unit 211 detects a time t _{HWB at} which the sign of ΔZ is inverted between the swing start time t _start and the top time t _top as the halfway back timing. Further, the swing analysis unit 211 detects a time t _{HWD at} which the sign of ΔZ is inverted between the _top time t _top and the impact time t _impact as the halfway down timing.

Then, the swing analysis unit 211 sets the position of the head 3a at time t _{HWB as} the position of the head 3a at the halfway back, and sets the position of the head 3a at time t _{HWD as} the position of the head 3a at the halfway down.

1-3-5. Calculation of head speed The head speed is the speed of the head 3a at the time of impact (the moment of impact, immediately before impact, or immediately after impact). For example, the swing analyzer 211, the difference between the position of the coordinates of the head 3a at time t _impact of the impact and the position of the coordinates of the head 3a in the previous time, the speed of the head 3a at time t _impact of the impact calculate. Then, the swing analysis unit 211 calculates the magnitude of the speed of the head 3a as the head speed.

1-3-6. Calculation of face angle and club path (incident angle) The face angle is an index based on the inclination of the head 3a of the golf club 3 at impact, and the club path (incident angle) is on the track of the head 3a of the golf club 3 at impact. It is an index based on.

  FIG. 18 is a diagram for explaining the face angle and the club path (incident angle). FIG. 18 shows the golf club 3 (only the head 3a is shown) on the XY plane viewed from the positive side of the Z axis in the XYZ coordinate system. In FIG. 18, reference numeral 74 denotes a face surface (striking surface) of the golf club 3, and 75 denotes a hitting point. Reference numeral 70 denotes a target line indicating the target direction of the hit ball, and reference numeral 71 denotes a plane orthogonal to the target line 70. Further, 76 is a curve representing the locus of the head 3 a of the golf club 3, and 72 is a tangent to the curve 76 at the hitting point 75. Here, the face angle φ is an angle formed by the plane 71 and the face surface 74, in other words, an angle formed by the straight line 73 orthogonal to the face surface 74 and the target line 70. Further, the club path (incident angle) ψ is an angle formed by the tangent line 72 (the direction in which the head 3 a passes the ball hitting point 75 in the XY plane) and the target line 70.

For example, the swing analysis unit 211 assumes that the angle formed by the face surface 74 of the head 3a and the x-axis direction is always constant (for example, orthogonal), and determines the face from the attitude of the sensor unit 10 at the _impact time t _impact . The direction of the straight line orthogonal to the surface 74 is calculated. Then, the swing analysis unit 211 calculates the angle (face angle) φ formed by the straight line 73 and the target line 70 by setting the Z-axis component of the straight line direction to 0 as the straight line 73 direction.

Further, for example, the swing analysis unit 211 sets the direction of the speed (that is, the speed of the head 3a in the XY plane) with the Z-axis component of the speed of the head 3a at the _impact time t _impact as 0 (zero). And an angle (club path (incident angle)) ψ formed by the tangent line 72 and the target line 70 is calculated.

  Note that the face angle φ is also referred to as an absolute face angle because it represents the inclination of the face surface 74 with respect to the target line 70 whose direction is fixed regardless of the direction of incidence on the ball hitting point 75 of the head 3a. On the other hand, the angle η formed by the straight line 73 and the tangent line 72 is referred to as a relative face angle because it represents the inclination of the face surface 74 with respect to the incident direction of the head 3a to the ball hitting point 75. The relative face angle η is an angle obtained by subtracting the club path (incident angle) ψ from the (absolute) face angle φ.

1-3-7. Calculation of Shaft Rotation Angle at Top Time Shaft Rotation Angle θ _top at Top Time is an angle (relative rotation angle) at which the golf club 3 is rotated around the shaft axis from a reference timing to a top timing. The reference timing is, for example, at the start of backswing or at the time of addressing. In this embodiment, when the user 2 is right-handed, the tightening direction of the right screw with the tip directed toward the head 3a side of the golf club 3 (the clockwise direction when viewing the head 3a side from the grip end side) is set. The shaft shaft rotation angle θ _{top is} the positive direction. Conversely, when the user 2 is left-handed, the shaft of the tightening direction of the left screw with the tip directed toward the head 3a side of the golf club 3 (counterclockwise direction when viewing the head 3a side from the grip end side) is the shaft. The positive direction of the shaft rotation angle θ _top is assumed.

FIG. 19 is a diagram illustrating an example of a temporal change in the shaft shaft rotation angle from the swing start (back swing start) to the impact. In FIG. 19, the horizontal axis represents time (s), and the vertical axis represents the shaft axis rotation angle (deg). FIG. 19 shows the shaft axis rotation angle θ _top at the top when the swing start time (back swing start time) is the reference timing (the shaft axis rotation angle is 0 °).

In the present embodiment, as shown in FIG. 3, the y-axis of the sensor unit 10 substantially coincides with the longitudinal direction of the golf club 3 (longitudinal direction of the golf club 3). Therefore, for example, the swing analysis unit 211 time-integrates the y-axis angular velocity included in the angular velocity data from the swing _start time t _start (backswing start time) or from the address time to the top time t _top (top time). Then, the shaft shaft rotation angle θ _top is calculated.

1-3-8. Calculation of grip deceleration rate and grip deceleration time rate The grip deceleration rate is an index based on the amount of deceleration of the grip, and the grip speed when the grip starts to decelerate during the downswing and the grip speed at the time of impact. Is the ratio. The grip deceleration time rate is an index based on the grip deceleration period, and is a ratio between the time from the start of deceleration of the grip during the downswing to the impact and the time of the downswing. The grip speed is preferably the speed of the part gripped by the user 2, but may be the speed of any part of the grip (for example, the grip end) or the speed of the part near the grip. May be.

FIG. 20 is a diagram illustrating an example of a temporal change in grip speed in a downswing. In FIG. 20, the horizontal axis represents time (s), and the vertical axis represents grip speed (m / s). In FIG. 20, when the grip speed when the grip starts deceleration (maximum grip speed) is V ₁ and the grip speed when impact is V ₂ , the grip deceleration rate R _V (unit:%) is It is represented by the following formula (16).

In FIG. 20, if the time from when the grip starts to decelerate to T ₁ is T ₁ and the time from when the grip starts decelerating to T ₂ is T ₂ , the grip deceleration time rate R _T (unit:%) Is represented by the following equation (17).

For example, assuming that the sensor unit 10 is attached near the portion where the user 2 holds the golf club 3, the speed of the sensor unit 10 may be regarded as the grip speed. Therefore, first, the swing analysis unit 211 determines the coordinates of the position of the sensor unit 10 at each time t from the top time t _top to the impact time t _impact (during the downswing) and the sensor unit 10 at the previous time. The speed of the sensor unit 10 at each time t is calculated based on the difference from the coordinates of the position.

Next, the swing analysis unit 211 calculates the magnitude of the speed of the sensor unit 10 at each time t, and sets the maximum value as V ₁ and the magnitude of the speed at the _impact time t _impact as V ₂ . Further, the swing analysis unit 211 specifies a time t _{vmax at} which the magnitude of the speed of the sensor unit 10 becomes the maximum value V ₁ . Further, the swing analysis unit 211 calculates T ₁ = t _vmax −t _top and T2 = t _impact −t _vmax . Then, the swing analysis unit 211 calculates the grip deceleration rate R _V and the grip deceleration time rate _{RT according} to the equations (16) and (17), respectively.

The swing analysis unit 211 regards the grip end speed as the grip speed and calculates the grip end speed based on the coordinates of the position of the grip end at each time t (during the downswing), and the same calculation as above. Thus, the grip deceleration rate R _V and the grip deceleration time rate _RT may be obtained.

1-3-9. Calculation of Attack Angle and Definition of Signs of Attack Angle and Face Angle FIG. 21 is a diagram for explaining the definition of the attack angle (first angle) δ. In the present embodiment, an XYZ coordinate system in which the target line indicating the hitting target direction is the X axis, the axis on the horizontal plane perpendicular to the X axis is the Y axis, and the vertical direction (the direction opposite to the direction of gravitational acceleration) is the Z axis. In FIG. 21, the X axis, the Y axis, and the Z axis are shown. The target line refers to, for example, a target direction for flying a ball straight. In FIG. 21, a point R is a hitting point where the head 3a of the golf club 3 hits the golf ball 4, and a curve L1 is a part of the trajectory at the time of swing of the head 3a of the golf club 3 in the XZ plane. Is a tangent of the curve L1 at the ball hitting point R in the XZ plane. As shown in FIG. 21, the attack angle is defined as an angle δ of the straight line L2 with respect to the XY plane (horizontal plane) S _xy . In FIG. 21, the rightward direction toward the paper surface along the X axis parallel to the XY plane (horizontal plane) S _xy is the hitting target direction. Therefore, the attack angle δ is determined by the direction of the tangent line (straight line L2) tangent to the swing trajectory (curve L1) of the head (striking part) 3a of the golf club (exercise equipment) 3, the striking target direction along the X axis, It can be said that the angle between

  The hitting target direction includes a direction orthogonal to the face surface of the head 3a of the golf club 3, a hitting direction preset by the user, a direction connecting a linear distance to the cup, and the like.

  In the present embodiment, the sign of the attack angle (first angle) δ is the direction in which + Z (vertically upward) of the Z axis rotates in the + X direction of the X axis (rightward toward the page) with the Y axis as the rotation axis. The clockwise direction in FIG. 15 is the first code, and the code opposite to the first code is the second code. As shown in FIG. 21, the first sign is, for example, negative (−), and the second sign is positive (+). The sign of the attack angle (first angle) δ shown in FIG. 21 is the first sign (negative). That is, the attack angle δ <0 ° when the head 3a is incident to the hitting point R in a diagonally lower right direction toward the paper surface. When the head 3a performs level blow in which the head 3a is incident horizontally along the X axis with respect to the hitting point R, the attack angle δ = 0 °. The attack angle δ> 0 ° when the head 3 a is in an upper blow that is incident on the hitting point R obliquely in the upper right direction toward the paper surface.

  On the other hand, the sign of the face angle (second angle) φ shown in FIG. 18 is the direction in which + Y of the Y axis rotates in the + X direction of the X axis with the Z axis as the rotation axis (clockwise toward the paper surface in FIG. 18). The third direction is set as the third code, and the code opposite to the third code is set as the fourth code. In FIG. 18, the third code is, for example, negative (−), and the fourth code is positive (+). The sign of the face angle (second angle) φ shown in FIG. 18 is the third sign (negative). That is, the face angle φ <0 ° when an impact occurs when the head 3a is closed inside out. When the face surface 74 of the head 3b is square incident perpendicularly to the target line, the face angle φ = 0 °. When an impact occurs with the head 3a being open outside, the face angle φ> 0 °.

  The swing analysis unit 211 illustrated in FIG. 10 includes a first angle calculation unit that calculates an attack angle (first angle) δ and a second angle calculation unit that calculates a face angle (second angle) φ. it can. These first and second angle calculation units use the output from the data acquisition unit 210 shown in FIG. 10, that is, the output of the sensor unit 10, to calculate the first and second angles δ, Calculate φ.

1-3-10. Procedure of Swing Analysis Processing (Swing Analysis Method) FIG. 22 is a flowchart showing an example of the procedure of swing analysis processing (swing analysis method) by the processing unit 21. The processing unit 21 executes the swing analysis program 240 stored in the storage unit 24, thereby executing the swing analysis process, for example, according to the procedure shown in the flowchart of FIG. Hereinafter, the flowchart of FIG. 22 will be described.

  First, the processing unit 21 waits until a measurement start operation (operation in step S2 in FIG. 4) by the user 2 is performed (N in S10). When the measurement start operation is performed (Y in S10), the sensor unit 10 A measurement start command is transmitted to the sensor unit 10, and acquisition of measurement data from the sensor unit 10 is started (S12).

  Next, the processing unit 21 instructs the user 2 to take an address posture (S14). In accordance with this instruction, the user 2 takes an address posture and stands still for a predetermined time (step S4 in FIG. 4).

  Next, when the processing unit 21 detects the stationary state of the user 2 using the measurement data acquired from the sensor unit 10 (Y in S16), the processing unit 21 notifies the user 2 of permission to start the swing (S18). The processing unit 21 outputs, for example, a predetermined sound, or notifies the user 2 of the permission to start the swing by providing an LED in the sensor unit 10 and lighting the LED. After confirming this notification, the swing operation (the operation in step S6 in FIG. 4) is started.

  Next, the processing unit 21 performs the processes after step S20 after the end of the swing motion of the user 2 or before the end of the swing motion.

  First, the processing unit 21 calculates an initial position and an initial posture of the sensor unit 10 using measurement data acquired from the sensor unit 10 (measurement data when the user 2 is stationary (at the time of address)) (S20).

  Next, the processing unit 21 detects the timing of the swing start, top, and impact using the measurement data acquired from the sensor unit 10 (S22).

  Further, the processing unit 21 calculates the position and orientation of the sensor unit 10 during the swing motion of the user 2 in parallel with or before or after the process of step S22 (S24).

  Next, the processing unit 21 determines the measurement data acquired from the sensor unit 10 in steps S26 to S34, the swing start, top and impact timings detected in step S22, and the position and orientation of the sensor unit 10 calculated in step S24. Are used to calculate various index values related to the swing described above.

  In step S26, the processing unit 21 calculates the shaft plane SP and the Hogan plane HP.

  In step S28, the processing unit 21 calculates the position of the head 3a at the time of halfway back and the position of the head 3a at the time of halfway down.

  In step S30, the processing unit 21 calculates a head speed, a face angle φ, an attack angle δ, and a club path (incident angle) ψ.

Further, in step S32, the processing unit 21 calculates the shaft axis rotation angle θ _top at the time of _top .

Further, in step S34, the processing unit 21 calculates the grip deceleration rate R _V and the grip deceleration time rate _RT .

  And the process part 21 produces | generates the swing analysis data 248 using the various parameter | index calculated in process S26-S34, and transmits to the swing diagnostic apparatus 30 (S36), and complete | finishes a swing analysis process.

  In the flowchart of FIG. 22, the order of each process may be appropriately changed within a possible range, a part of the process may be deleted or changed, and another process may be added.

1-4. Configuration of Swing Diagnosis Device FIG. 23 is a diagram illustrating a configuration example of the swing diagnosis device 30. As shown in FIG. 23, in the present embodiment, the swing diagnosis apparatus 30 includes a processing unit 31, a communication unit 32, and a storage unit 34. However, the swing diagnosis apparatus 30 may have a configuration in which some of these components are appropriately deleted or changed, or other components are added as appropriate.

  The storage unit 34 includes, for example, various IC memories such as a ROM, a flash ROM, and a RAM, a recording medium such as a hard disk and a memory card, and the like. The storage unit 34 stores programs for the processing unit 31 to perform various calculation processes and control processes, various programs and data for realizing application functions, and the like.

  In the present embodiment, the storage unit 34 stores a swing diagnosis program 340 that is read by the processing unit 31 and that executes a swing diagnosis process. The swing diagnosis program 340 may be stored in advance in a non-volatile recording medium (computer-readable recording medium), or the processing unit 31 receives the swing diagnosis program 340 from a server (not shown) via the network 40. Then, it may be stored in the storage unit 34.

  In the present embodiment, the storage unit 34 stores (saves) a swing analysis data list 341 including a plurality of swing analysis data 248 generated by the swing analysis device 20. That is, the swing analysis data 248 generated every time the processing unit 21 of the swing analysis device 20 analyzes the swing motion of the user 2 is sequentially added to the swing analysis data list 341.

  Further, in the present embodiment, the storage unit 34 stores a V zone score table 342, a rotation score table 343, an impact score table 344, a down blow score table 345, an upper blow score table 346, and a swing efficiency score table 347. Yes. Details of these score tables will be described later.

  The storage unit 34 is used as a work area of the processing unit 31 and temporarily stores calculation results and the like executed by the processing unit 31 according to various programs. Furthermore, the storage unit 34 may store data that needs to be stored for a long time among the data generated by the processing of the processing unit 31.

  The communication unit 32 performs data communication with the communication unit 27 (see FIG. 10) of the swing analysis device 20 via the network 40. For example, the communication unit 32 performs a process of receiving the swing analysis data 248 from the communication unit 27 of the swing analysis device 20 and sending it to the processing unit 31. Further, for example, the communication unit 32 transmits information necessary for display of the selection screen of FIG. 7 to the communication unit 27 of the swing analysis device 20, or transmits selection information on the selection screen of FIG. 7 to the communication of the swing analysis device 20. The processing received from the unit 27 and sent to the processing unit 31 is performed. Further, for example, the communication unit 32 performs processing of receiving information necessary for displaying the input data editing screen of FIG. 8 from the processing unit 31 and transmitting the information to the communication unit 27 of the swing analysis apparatus 20. For example, the communication unit 32 receives input data when the diagnosis start button on the input data editing screen in FIG. 8 is pressed from the communication unit 27 of the swing analysis apparatus 20 and sends the input data to the processing unit 31. Then, the information of the diagnosis result based on the input data (score and total score of a plurality of items indicating the swing characteristics of the user 2) is received and transmitted to the communication unit 27 of the swing analysis device 20. For example, the communication unit 32 performs processing for receiving information necessary for displaying the swing diagnosis screen of FIG. 9 from the processing unit 31 and transmitting the information to the communication unit 27 of the swing analysis apparatus 20.

  The processing unit 31 receives the swing analysis data 248 from the swing analysis device 20 via the communication unit 32 and stores it in the storage unit 34 (added to the swing analysis data list 341) according to various programs. In addition, the processing unit 31 receives various types of information from the swing analysis device 20 via the communication unit 32 according to various programs, and displays various screens (the respective screens in FIGS. 7, 8, and 9). A process of transmitting necessary information to the swing analysis apparatus 20 is performed. The processing unit 31 performs other various control processes.

  In particular, in this embodiment, the processing unit 31 functions as the data acquisition unit 310, the score calculation unit 311 and the storage processing unit 312 by executing the swing diagnosis program 340, and the swing selected from the swing analysis data list 341. Diagnosis processing (swing diagnosis processing) is performed on the analysis data 248.

  The data acquisition unit 310 performs processing for receiving the swing analysis data 248 received by the communication unit 32 from the swing analysis device 20 and sending it to the storage processing unit 312. In addition, the data acquisition unit 310 performs processing for receiving various types of information received from the swing analysis device 20 by the communication unit 32 and sending the information to the score calculation unit 311.

  The storage processing unit 312 performs read / write processing of various programs and various data for the storage unit 34. For example, the storage processing unit 312 receives the swing analysis data 248 from the data acquisition unit 310 and stores it in the storage unit 34 (adds it to the swing analysis data list 341), or the swing analysis data stored in the storage unit 34. Processing such as reading the swing analysis data 248 from the list 341 is performed. Further, for example, the storage processing unit 312 includes the V zone score table 342, the rotation score table 343, the impact score table 344, the down blow score table 345, the upper blow score table 346, and the swing efficiency score table stored in the storage unit 34. 347 is read out.

  The score calculation unit 311 (level calculation unit) performs processing for calculating the score (level) of a plurality of items based on the data related to the swing. In the present embodiment, the data related to the swing may be input data when the diagnosis start button is pressed on the input data editing screen of FIG. 8, or the swing analysis data 248 selected on the selection screen of FIG. It may be present or both may be included.

  For example, in the input data editing screen of FIG. 8, when the diagnosis start button is pressed without editing the gender, golf club type, and swing index with the initial values, the score calculation unit 311 displays the swing analysis data list. Based on the swing analysis data 248 selected from 341, processing for calculating the score is performed. On the other hand, when the diagnosis start button is pressed after at least one of sex, golf club type, and swing index is edited on the input data editing screen of FIG. 8, the score calculation unit 311 selects the selected swing analysis. Based on data (pseudo data) in which at least a part of the data 248 is edited, a process of calculating the score is performed.

  The plurality of items for which points are calculated include a first item relating to at least one of a backswing and a downswing. The first item includes at least one virtual plane, the position of the head 3a (an example of a striking part) of the golf club 3 (an example of an exercise device) at a first timing during a backswing, and a second item during a downswing. An item indicating the relationship with the position of the head 3a at the timing may be included. For example, the first timing may be when the longitudinal direction of the golf club 3 is along the horizontal direction during the backswing. Further, for example, the second timing may be when the longitudinal direction of the golf club 3 is in a direction along the horizontal direction during the downswing.

  The at least one virtual plane is in the first line segment 51 that is the first axis along the target direction (target line) of the hit ball in the XY plane as the reference plane, and in the longitudinal direction of the golf club 3 before the start of the backswing. The shaft plane SP that is the first virtual plane that is specified based on the second line segment 52 that is the second axis along the axis may be included. The time before the start of the backswing may be at the time of addressing (when the user 2 takes an address posture and is stationary).

  The at least one virtual plane includes a first line segment 51 that is a first axis along the target direction (target line) of the hit ball on the XY plane as a reference plane, and the length of the golf club 3 before the start of the backswing. A Hogan's plane HP that is a second virtual plane (that is, a second virtual plane that forms an angle β with the first virtual plane) identified based on the direction and the third line segment 53 that is the third axis that forms the angle β. May be included.

  The at least one virtual plane may include only one of the shaft plane SP and the Hogan plane HP. In addition, at least one virtual plane is replaced with another virtual plane (for example, a plane between the shaft plane SP and the Hogan plane HP, an outer side of the shaft plane SP and the Hogan plane HP, instead of the shaft plane SP or the Hogan plane HP. Or a plane intersecting at least one of the shaft plane SP and the Hogan plane HP).

  In the following, the first items are the four indicators of swing: “shaft plane SP”, “Hogan plane HP”, “position of the head 3a at the halfway back”, and “head at the halfway down” It is assumed that an item (hereinafter, this item name is referred to as “V zone”) indicating the relationship with “the position of 3a” is included.

  The first item may include an item related to swing efficiency. The item related to the efficiency of the swing may be an item indicating the relationship between the deceleration amount of the grip of the golf club 3 and the deceleration period in the downswing. Hereinafter, the first item indicates the relationship between the “grip deceleration rate” that is an index based on the amount of deceleration of the grip and the “grip deceleration time rate” that is an index based on the deceleration period of the grip as an item related to the swing efficiency. An item (hereinafter, this item name is referred to as “swing efficiency”) is included.

  The plurality of items for which points are calculated further include a second item relating to impact (at the time of hitting). The second item may include an item indicating the relationship between the incident angle of the head 3a of the golf club 3 and the inclination of the head 3a in impact (at the time of hitting). Hereinafter, the second item is “relative face angle η” which is an index based on the “club path (incident angle) ψ” which is an index based on the incident angle of the head 3 a of the golf club 3 at impact and the tilt of the head 3 a at the impact. ”(Hereinafter, this item name is referred to as“ impact ”).

  Further, the second item may include an item indicating the relationship between the attack angle and the absolute face angle of the head 3a of the golf club 3 in impact (during hitting). Thereafter, the second item is “absolute face angle φ” which is an index based on the “attack angle δ” depending on the position of the head 3a of the golf club 3 at the impact and its lowest point and the inclination of the head 3a at the impact. (Hereinafter, this item name is referred to as “down blow” or “upper blow”).

The plurality of items for which the score is to be calculated may further include a third item regarding the transition from the back swing to the down swing and the impact (at the time of hitting). The third item is the relationship between the rotation angle around the major axis of the golf club 3 when shifting from the backswing to the downswing (at the top) and the inclination of the head 3a of the golf club 3 at the time of impact (at the time of hitting). May be included. Hereinafter, the third item is an index based on “the shaft axis rotation angle θ _top at the time of top” which is an index based on the rotation angle around the major axis of the golf club 3 at the top timing and the inclination of the head 3a at the impact. It includes an item indicating the relationship with “(absolute) face angle φ” (hereinafter, this item name is referred to as “rotation”).

  In addition, the score calculation unit 311 performs a process of calculating a total score based on the scores of a plurality of items. Then, the processing unit 31 transmits the scores of the plurality of items and the total score information calculated by the score calculation unit 311 to the swing analysis device 20 via the communication unit 32. That is, the processing unit 31 also functions as an output unit that outputs information on the scores (levels) of a plurality of items and total points.

1-5. Swing Diagnosis Process In the present embodiment, the processing unit 31 of the swing diagnosis apparatus 30 performs a process of calculating the scores and total points of a plurality of items indicating the characteristics of the swing as the swing diagnosis process.

  A method for calculating the score of each item and a method for calculating the total score by the score calculation unit 311 of the processing unit 31 will be described in detail.

1-5-1. Calculation of the score of the “V zone” item The score calculation unit 311 has a plurality of head 3a positions determined at halfway back and halfway down based on the shaft plane SP and the Hogan plane HP (V zone), respectively. The score of the “V zone” item is calculated depending on which of the areas belongs to.

24A and 24B are diagrams illustrating an example of the relationship between the shaft plane SP and the Hogan plane HP (V zone) and a plurality of regions. FIG. 24A shows the relationship between the shaft plane SP, the Hogan plane HP, and the five areas A to E when viewed from the negative side of the X axis (projected on the YZ plane). FIG. 24B is a diagram illustrating an example of an outline of the shaft plane SP and the Hogan plane HP and the posture of the user 2. The region B is a predetermined space including the Hogan plane HP, and the region D is a predetermined space including the shaft plane SP. Region C is a space (the space between the boundary surface S _CD between the boundary surface S _BC and region D of the region B) which is sandwiched between the regions B and D. The region A is a space in contact with the region B at the boundary surface S _AB opposite to the region C. The region E is a space in contact with the region D at the boundary surface S _DE on the opposite side to the region C.

Various methods for setting the boundary surface S _AB , the boundary surface S _BC , the boundary surface S _CD, and the boundary surface S _DE are conceivable. For example, on the YZ plane, the Hogan plane HP is exactly in the middle of the boundary surface S _AB and the boundary surface S _BC , and the shaft plane SP is in the middle of the boundary surface S _CD and the boundary surface S _DE . In addition, the angles around the origin O (X axis) of the regions B, C, and D can be set to be equal. That is, with respect to the angle β formed between the shaft plane SP and the Hogan plane HP, the angles formed between the Hogan plane HP, the boundary surface S _AB, and the boundary surface S _BC are set to β / 4, respectively. by setting the angle between S _CD and interface S _DE to beta / 4, respectively, region B, region C, and the angle of the area D are both set to beta / 2.

Since a swing in which the Y coordinate of the head 3a position becomes negative during halfway back or halfway down cannot be assumed, in FIG. 24A, the boundary surface opposite to the boundary surface S _AB in the region A is the XZ plane. Is set to Similarly, the Z-coordinate of the head 3a position at the half-way back or during Halfway down swing such that negative can not be assumed, the boundary surface between the boundary surface S _DE region E opposite side is set to the XY plane ing. Of course, the boundary surfaces of the regions A and E may be set so that the angles around the origin O (X axis) of the regions A and E are also equal to the regions B, C, and D.

Since a swing in which the Y coordinate of the head 3a position becomes negative during halfway back or halfway down cannot be assumed, in FIG. 24A, the boundary surface opposite to the boundary surface S _AB in the region A is the XZ plane. Is set to Similarly, the Z-coordinate of the head 3a position at the half-way back or during Halfway down swing such that negative can not be assumed, the boundary surface between the boundary surface S _DE region E opposite side is set to the XY plane ing. Of course, the boundary surfaces of the regions A and E may be set so that the angles around the origin O (X axis) of the regions A and E are also equal to the regions B, C, and D.

Specifically, first, the score calculation unit 311 determines the coordinates of the four vertices U1, U2, S1, and S2 of the shaft plane SP included in the data related to the swing (the selected swing analysis data 248) and the Hogan plane HP. Based on the coordinates of the four vertices U1, U2, H1, and H2, boundary surfaces S _AB , boundary surface S _BC , boundary surface S _CD, and boundary surface S _DE of regions A to E are set. Next, the score calculation unit 311 includes the coordinates of the position of the head 3a at the time of halfway back and the coordinates of the position of the head 3a at the time of halfway down included in the data relating to the swing (selected swing analysis data 248), respectively. It is determined which of E belongs to.

  Information of this determination result is transmitted to the swing analysis device 20 and used as information of “sex” and “region to which the head 3a position belongs at the time of halfway down” on the input data editing screen of FIG. After that, the score calculation unit 311 includes information on “region to which the head 3a position belongs at the time of halfway back” and “region to which the position of the head 3a belongs at the time of halfway down” included in the data related to the swing (input data to be diagnosed). Is used to calculate the score corresponding to the determination result with reference to the V-zone score table 342.

  In the present embodiment, as shown in FIG. 25, the V zone score table 342 defines the score for each combination of the area to which the head 3a position at the halfway back belongs and the area to which the head 3a position at the halfway down belongs. To do. For example, when the position of the head 3a at the time of halfway back belongs to the region A and the position of the head 3a at the time of halfway down belongs to the region A, the score is pv1. The scores pv1 to pv25 shown in FIG. 25 are, for example, any one of 1 to 5 points.

  The score calculation unit 311 has a score that is so low that the hit ball predicted based on the relationship between the shaft plane SP, the Hogan plane HP, the head 3a position at the halfway back, and the head 3a position at the halfway down is easily bent. May be calculated. “Easy to bend” may mean that the trajectory after hitting is easy to bend (easily becomes a slice or hook), or may be that the direction of the hitting ball is easily deviated from the target direction (target line). Alternatively, the score calculation unit 311 may calculate a higher score as the hit ball easily jumps straight. “Easy to fly straight” may mean that the trajectory after hitting is difficult to bend (it is likely to be straight) or that the direction of the hitting ball is difficult to deviate from the target direction (target line).

  For example, when the head 3a position at the time of halfway back belongs to the region E and the position of the head 3a at the time of halfway down belongs to the region A, it is predicted that the hit ball is easily bent. A relatively low score is calculated. Therefore, in the example of FIG. 25, pv21 may be, for example, one point which is the lowest point among 1 to 5 points.

  Further, for example, when both the head 3a position at the time of halfway back and the head 3a position at the time of halfway down belong to the region C, it is predicted that the hit ball is likely to fly straight. A high score (for example, a maximum of 5 points) is calculated. Therefore, in the example of FIG. 25, pv13 may be, for example, 5 points which are the highest points among 1 to 5 points.

1-5-2. Calculation of “Rotation” Item Score The calculation unit 311 calculates the “rotation” item score depending on which of the plurality of ranges the shaft axis rotation angle θ _top and the face angle φ at the _top belong to. To do. Specifically, first, the score calculation unit 311 determines which range each of the shaft shaft rotation angle θ _top and the face angle φ at the time of top included in the data relating to swing (input data to be diagnosed) belongs to. Next, the score calculation unit 311 refers to the rotation score table 343 and calculates a score corresponding to the determination result.

In the present embodiment, as shown in FIG. 26, the rotation point number table 343 defines the number of points for each combination of the range to which the shaft axis rotation angle θ _{top at the top} belongs and the range to which the face angle φ belongs. In the example of FIG. 26, the range to which the shaft axis rotation angle θ _top at the time of _top belongs is “less than θ1”, “θ1 or more and less than θ2”, “θ2 or more and less than θ3”, “θ3 or more and less than θ4”, “θ4 or more”. Are classified into five ranges. The range to which the face angle φ belongs is “less than φ1”, “φ1 or more and less than φ2”, “φ2 or more and less than φ3”, “φ3 or more and less than φ4”, “φ4 or more and less than φ5”, “φ5 or more and less than φ6”, It is classified into seven ranges of “φ6 or more”. For example, when the shaft axis rotation angle θ _top at the time of _top belongs to “less than θ1” and the face angle φ belongs to “less than φ1”, the score is pr1. Each of the points pr1 to pr35 shown in FIG. 26 is, for example, any one of 1 to 5 points.

The score calculation unit 311 may calculate a score that is so low that the hit ball predicted based on the relationship between the shaft shaft rotation angle θ _top at the time of _top and the face angle φ is easily bent.

For example, when the shaft shaft rotation angle θ _top at the time of the _top is extremely large is a state in which the face surface of the golf club 3 is extremely open, the ball does not return to the square at the time of impact, and the hit ball is easily bent. It is expected to be. When the face angle φ is extremely large, the face surface at the time of impact is extremely open (open), and when the face angle φ is extremely small (a negative value having a large absolute value), the impact is The face surface is extremely closed (closed), and the ball is expected to bend easily in any state. That is, for example, when the shaft axis rotation angle θ _top belongs to “θ4 or more” and the face angle φ belongs to “less than φ1” or “φ6 or more”, it is expected that the hit ball is likely to bend, so the score is calculated. The unit 311 calculates a relatively low score. Therefore, in the example of FIG. 26, pr29 and pr35 may be one point which is the lowest point among 1 to 5, for example.

Further, for example, if the shaft axis rotation angle θ _top at the time of the _top is small, it is expected that the face surface returns to the square at the time of impact, and the hit ball is likely to fly straight. Further, when the face angle φ is close to 0 °, it is expected that the hit ball is likely to fly straight because the face surface at impact is close to square. That is, for example, when the shaft axis rotation angle θ _top belongs to “less than θ1” and the face angle φ belongs to “more than φ3 and less than φ4”, it is predicted that the straight axis is likely to fly. A relatively high score (for example, a maximum of 5 points) is calculated. Therefore, in the example of FIG. 26, pr4 may be, for example, 5 points that are the highest points among 1 to 5 points.

1-5-3. Calculation of the score of the “impact” item The score calculation unit 311 calculates the score of the “impact” item depending on which of the plurality of ranges the club path (incident angle) ψ and the relative face angle η belong to. . Specifically, first, the score calculation unit 311 determines which range the club path (incident angle) ψ included in the data related to the swing (input data to be diagnosed) belongs. In addition, the score calculation unit 311 calculates a relative face angle η by subtracting the club path (incident angle) ψ from the face angle φ included in the swing-related data (diagnosis target input data) (see FIG. 18). It is determined to which range the face angle η belongs. Next, the score calculation unit 311 refers to the impact score table 344 and calculates the score corresponding to the determination result.

  In the present embodiment, as shown in FIG. 27, the impact score table 344 defines the score for each combination of the range to which the relative face angle η belongs and the range to which the club path (incident angle) ψ belongs. In the example of FIG. 27, the range to which the relative face angle η belongs is five ranges of “η1 or more”, “less than η1 η2 or more”, “less than η2 η3 or more”, “less than η3 η4 or more”, and “less than η4”. It is classified. Further, the range to which the club path (incident angle) ψ belongs is classified into five ranges of “less than ψ1”, “more than ψ1 and less than ψ2”, “ψ2 and more than ψ3”, “ψ3 and more than ψ4”, and “ψ4 and more”. Has been. For example, when the relative face angle η belongs to “η1 or more” and the club path (incident angle) ψ belongs to “less than ψ1”, the score is pi1. Each of the points pi1 to pi25 shown in FIG. 27 is, for example, any one of 1 to 5 points.

  The score calculation unit 311 may calculate a score that is so low that the hit ball predicted based on the relationship between the club path (incident angle) ψ and the relative face angle η is easily bent.

  For example, a state in which the relative face angle η is extremely large is a state in which the face surface at the time of impact is open (open), and a state in which the face angle φ is extremely small (a negative state having a large absolute value) is in the state of impact. The face surface is extremely closed (closed), and the ball is expected to bend easily in any state. For example, when the club path (incident angle) ψ is extremely large, the trajectory of the head 3a at the time of impact is extremely inside-out, so that it is expected that the hit ball is likely to bend. When the club path (incident angle) ψ is extremely small (negative state with a large absolute value), the trajectory of the head 3a at the time of impact is extremely outside-in, so it is expected that the hit ball is easily bent. That is, for example, when the relative face angle η belongs to “η1 or more” or “less than η4” and the club path (incident angle) ψ belongs to “less than ψ1” or “ψ4 or more”, the hit ball is likely to bend. Since it is expected, the score calculation unit 311 calculates a relatively low score. Therefore, in the example of FIG. 27, pi1, pi5, pi21, and pi25 may be, for example, one point that is the lowest point among 1 to 5 points.

  Further, for example, when the relative face angle η is close to 0 ° and the club path (incident angle) ψ is close to 0 °, the face surface at the time of impact is close to the square and the head 3a at the time of impact. It is expected that the hit ball is easy to fly straight. That is, for example, when the relative face angle η belongs to “less than η2 η3 or more” and the club path (incidence angle) ψ belongs to “φ2 or more and less than ψ3”, it is predicted that it is likely to fly straight. The unit 311 calculates a relatively high score (for example, a maximum of 5 points). Accordingly, in the example of FIG. 27, pi13 may be, for example, 5 points which are the highest points among 1 to 5 points.

1-5-4. Calculation of score of “down blow” item When the iron is selected as the golf club 3, the score calculation unit 311 depends on which of the plurality of ranges the attack angle δ and the absolute face angle φ belong to. Calculate the score for the “Down Blow” item. Specifically, first, the score calculation unit 311 determines to which range the attack angle δ shown in FIG. 21 belongs. Further, the score calculation unit 311 determines which range the face angle φ shown in FIG. 18 belongs to. Next, as shown in FIG. 28, the score calculation unit 311 refers to the down blow score table 345 and calculates a score corresponding to the determination result.

  In the present embodiment, as shown in FIG. 28, the down blow point number table 345 defines the number of points for each combination of the range to which the attack angle δ belongs and the range to which the absolute face angle φ belongs. In the example of FIG. 28, the range to which the attack angle δ belongs is “less than −δ1”, “−δ1 or more and less than −δ2”, “−δ2 or more and less than −δ3”, “−δ3 or more and 0 or less”, “+ δ4 or more”. For example, it is classified into five ranges (δ1> δ2> δ3, δ4≈0). The range to which the absolute face angle φ belongs is classified into, for example, five ranges of “less than −φ1”, “−φ1 or more and 0 or less”, “greater than 0 and less than φ1”, “+ φ1 or more and less than + φ2”, and “+ φ2 or more”. (Φ1 <φ2). For example, when the attack angle δ belongs to “less than −δ1” and the absolute face angle φ belongs to “less than −φ1”, the score is pd1.

  Here, when the sign of the attack angle (first angle) δ is the second sign (positive), the scores of Pd5, Pd10, Pd15, Pd20, and Pd25 can be set as the minimum score. At this time, the absolute value of the threshold δ4 may be as small as possible (δ4≈0). As described above, the second sign (positive) of the attack angle (first angle) δ in the impact indicates the upper blow in which the lowest point of the club head 3a during the downswing is after the impact. When it is determined that the second angle (positive) of the attack angle (first angle) δ is determined in an iron club that requires downblow, the swing can be minimally evaluated as the minimum score.

  Next, when the sign of the attack angle (first angle) δ is the first sign (negative) and the sign of the absolute face angle (second angle) φ is the fourth sign (positive), the absolute face angle When the absolute value of (second angle) φ is equal to or larger than the first threshold φ2, the scores of Pd21 to Pd24 in FIG. 28 that satisfy this condition can be set low. As described above, the first sign (negative) of the attack angle (first angle) δ in the impact indicates the down blow in which the lowest point of the club head 3a during the down swing is before the impact. In addition, when the attack angle (first angle) δ is 0 (zero), the level blow is true. However, an attack angle having a small absolute value of the first sign (negative) can also be regarded as a level blow. . Even in this case, when it is determined that the absolute face angle (second angle) φ is equal to or larger than the first threshold value φ2 in an excessively open state, the attack angle (first angle) δ indicates down blow. However, it is possible to lower the score by lowering the score.

  Next, for example, when the sign of the attack angle (first angle) δ is the first sign (negative), the absolute value of the attack angle (first angle) δ is smaller than the second threshold value δ2 and is absolute When the absolute value of the face angle (second angle) φ is smaller than the third threshold φ1, the scores of Pd8, Pd9, Pd13, and Pd14 that satisfy this condition can be set as the maximum score. The case where the sign of the attack angle (first angle) δ is the first sign (negative) means that the swing using the iron club is an appropriate down blow or a level blow. Further, for example, when the absolute value of the attack angle (first angle) δ is smaller than the second threshold value δ2, it is determined that the attack angle (first angle) δ is in an appropriate range. In addition, when the absolute value of the absolute face angle (second angle) φ is smaller than the third threshold value φ1, it is determined that the absolute face angle (second angle) φ is also in the appropriate range. In such a case, the maximum swing can be evaluated as the maximum score.

  Next, when the sign of the attack angle (first angle) δ is the first sign (negative) and the sign of the absolute face angle (second angle) φ is the fourth sign (positive), the absolute face When the absolute value of the angle (second angle) φ is not less than the third threshold φ1 and less than the first threshold φ2, the scores of Pd16 to Pd19 that satisfy this condition can be set as lower scores. The case where the sign of the attack angle (first angle) δ is the first sign (negative) means that the swing using the iron club is an appropriate down blow or a level blow. The case where the sign of the absolute face angle (second angle) φ is the fourth sign (positive) is when the face angle is open. In this case, if the absolute value of the absolute face angle (second angle) φ is not less than the third threshold φ1 and less than the first threshold φ2, a low score is set. The scores of Pd21 to Pd24 in FIG. 28 may be the same as the scores of Pd16 to Pd19 in FIG.

  Next, when the sign of the attack angle (first angle) δ is the first sign (negative) and the sign of the absolute face angle (second angle) φ is the third sign (negative), the absolute face angle When the absolute value of (second angle) φ is greater than or equal to the third threshold value φ1, the scores of Pd1, Pd2, Pd3, and Pd4 in FIG. 28 that satisfy this condition are the middle scores that are higher than the lower scores ( = Moderate score). The case where the sign of the first angle corresponding to the attack angle is the first sign (negative) means that the swing using the iron club is an appropriate down blow or a level blow. The case where the sign of the absolute face angle (second angle) φ is the third sign (negative) is when the face angle of the head (striking part) 3a with respect to the striking target direction in impact is closed. In this case, even if the absolute value of the absolute face angle (second angle) φ is equal to or greater than the third threshold value φ1, the intermediate score is set higher than the low score.

  Next, when the sign of the attack angle (first angle) δ is the first sign (negative), the absolute value of the attack angle (first angle) δ is equal to or greater than the fourth threshold δ1 and less than the second threshold δ2. In addition, when the sign of the absolute face angle (second angle) φ is the third sign (negative), this condition is satisfied when the absolute value of the absolute face angle (second angle) φ is less than the third threshold value φ1. A score of 28 (Pd7) is lower than the maximum score and higher than the middle score. The case where the sign of the first angle corresponding to the attack angle is the first sign (negative) is when the swing using the iron club is an appropriate downblow. In this case, if the absolute value of the attack angle (first angle) δ is not less than the fourth threshold value δ1 and less than the second threshold value δ2, it can be said that the attack angle (first angle) δ is in a range corresponding to the appropriate range. On the other hand, the case where the sign of the absolute face angle (second angle) φ is the third sign (negative) is when the face angle of the head (striking part) 3a with respect to the striking target direction in impact is closed. In the above case, if the absolute value of the absolute face angle (second angle) φ is less than the third threshold φ1, the score is lower than the maximum score and higher than the middle score.

  Next, when the sign of the attack angle (first angle) δ is the first sign (negative), the absolute value of the attack angle (first angle) δ is equal to or greater than the fourth threshold δ1 and less than the second threshold δ2. In addition, when the sign of the absolute face angle (second angle) φ is the fourth sign (positive), this condition is satisfied when the absolute value of the absolute face angle (second angle) φ is less than the third threshold value φ1. A score of 28 (Pd12) is lower than the maximum score and higher than the middle score. The case where the sign of the first angle corresponding to the attack angle is the first sign (negative) is when the swing using the iron club is an appropriate downblow. In this case, if the absolute value of the attack angle (first angle) δ is not less than the fourth threshold value δ1 and less than the second threshold value δ2, it can be said that the attack angle (first angle) δ is in a range corresponding to the appropriate range. On the other hand, the case where the sign of the absolute face angle (second angle) φ is the fourth sign (positive) is when the face angle of the head (striking part) 3a with respect to the striking target direction in impact is open. In the above case, if the absolute value of the attack angle (first angle) δ is less than the third threshold φ1, the score is lower than the maximum score and higher than the middle score.

  In the present embodiment, when the sign of the attack angle (first angle) δ is the first sign (negative) and the sign of the absolute face angle (second angle) φ is the fourth sign (positive), The smaller the absolute value of the two angles, the lower the score can be calculated (for example, Pd6 <Pd7 <Pd8, Pd9, Pd11 <Pd12 <Pd13).

  In the present embodiment, when the sign of the attack angle (first angle) δ is the first sign (negative), the smaller the absolute value of the first angle and the smaller the absolute value of the second angle, A high score can be calculated (eg, Pd2 <Pd7 = Pd12 <Pd8 = Pd13 and Pd7 = Pd12> Pd17).

  Furthermore, in this embodiment, the sign of the attack angle (first angle) δ is the first sign (negative) and the sign of the absolute face angle (second angle) φ is the third sign (negative). As the absolute value of the second angle increases, a lower score is calculated (for example, Pd1 <Pd6, Pd2 <Pd7, Pd3 <Pd8, Pd4 <Pd9).

1-5-5. Calculation of score of “upper blow” item When the driver (wood) is selected as the golf club 3, the score calculation unit 311 belongs to any of a plurality of ranges of the attack angle δ and the absolute face angle φ. Based on the above, the score of the “upper blow” item is calculated. Specifically, the score calculation unit 311 refers to the upper blow score table 346 and calculates the score corresponding to the determination result as shown in FIG. 29, for example.

  Here, FIG. 29 can be created by changing the sign of the attack angle (first angle) δ shown in FIG. 28, for example. That is, since the driver (Wood) is required to up-blow, when the sign of the attack angle (first angle) δ is the first sign (negative) indicating down-blow, Pu5, Pu10, Pu15, Pu20 satisfying this condition , Pu25 is the minimum score. Further, even when the sign of the attack angle (first angle) δ is the second sign (positive) indicating upper blow, the absolute face angle (second angle) φ indicates an excessive open state (φ ≧ + φ2) The scores of Pu21 to Pu24 that satisfy this condition are the minimum scores. Scores Pu1 to Pu25 shown in FIG. 29 can be the same score between the numbers corresponding to the scores Pd1 to Pd25 shown in FIG. For example, in FIG. 29, the maximum score can be set in the range of 0 ≦ δ <δ2 and −φ1 <φ <+ φ1 (Pu8 = Pu9 = Pu13 = Pu14 = maximum score). 28 and 29, the values of δ1 to δ4 or the values of φ1 and φ2 may be shared, or may be different. Furthermore, in FIG. 28 and FIG. 29, the values of Pd1 to Pd25 and the values of Pu1 to Pu25 may be shared or may be different.

1-5-6. Calculation of the score of the “swing efficiency” item The score calculation unit 311 calculates the score of the “swing efficiency” item depending on which of the plurality of ranges the grip deceleration rate R _V and the grip deceleration time rate R _T belong to. calculate. Specifically, first, the score calculation unit 311 determines to which range the grip deceleration rate R _V and the grip deceleration time rate _RT included in the data related to swing (input data to be diagnosed) belong. Next, the score calculation unit 311 refers to the swing efficiency score table 347 and calculates a score corresponding to the determination result.

In the present embodiment, as shown in FIG. 30, the swing efficiency score table 347 defines the score for each combination of the range to which the grip deceleration rate R _V belongs and the range to which the grip deceleration time rate _RT belongs. In the example of FIG. 30, the range to which the grip deceleration rate R _V belongs is “nu1 or more”, “less than nu1 nu2 or more”, “less than nu2 nu3 or more”, “less than nu3 nu4 or more”, “less than nu4 nu5 or more”, “ It is classified into six ranges of “less than nu5”. The ranges to which the grip deceleration time rate _RT belongs are “nup1 or more”, “less than nup1 nup2 or more”, “less than nup2 nup3 or more”, “less than nup3 nup4 or more”, “less than nup4 nup5 or more”, “less than nup5” Are classified into six ranges. For example, when the grip deceleration rate R _V belongs to “nu1 or more” and the grip deceleration time rate _RT belongs to “nup1 or more”, the score is ps1. Each of the points ps1 to ps36 shown in FIG. 30 is, for example, any one of 1 to 5 points.

The score calculation unit 311 may calculate a higher score as the swing efficiency predicted based on the relationship between the grip deceleration rate R _V and the grip deceleration time rate _RT is higher.

In accelerating the head 3a in a golf swing, it is considered that in a downswing, a natural rotation of the golf club occurs by removing the arm force and decelerating the arm, thereby accelerating the shaft. The natural rotation of the golf club can be grasped depending on how much the grip speed is reduced during the downswing. Therefore, it is expected that the higher the grip deceleration rate R _V, the more efficient swing using the natural rotation of the golf club can be realized. However, when the natural rotation of the golf club is close to the impact timing, that is, when the grip deceleration time rate _RT is low, the golf club will have an impact without fully utilizing the natural rotation of the golf club. It is not necessarily an efficient swing. That is, for example, when the grip deceleration rate R _V belongs to “nu1 or more” and the grip deceleration time rate _RT belongs to “nup1 or more”, the swing efficiency is expected to be high. Calculate a relatively high score. Further, for example, when the grip deceleration rate R _V belongs to “less than nu5” and the grip deceleration time rate _RT belongs to “less than nup5”, the swing efficiency is expected to be low, so the score calculation unit 311 Calculate a relatively low score. Therefore, in the example of FIG. 30, ps1 may be, for example, 5 points that are the highest points among 1 to 5 points, and ps36 may be, for example, 1 point that is the lowest point among 1 to 5 points. .

1-5-7. Calculation of the score of the “bending of ball” item The score calculation unit 311 is a head speed ν (hereinafter referred to as head speed) which is the magnitude of the speed of the head 3a at the time of impact (instant of impact, immediately before impact or immediately after impact). The score of the “bending of ball” item is calculated according to which of a plurality of ranges ν) and relative face angle η belong to. Specifically, first, the score calculation unit 311 determines which range each of the head speed ν and the relative face angle η included in the data related to the swing (input data to be diagnosed) belongs. Next, the score calculation unit 311 refers to a ball bending score table 348 shown in FIG. 31 and calculates a score corresponding to the determination result.

  In the present embodiment, as shown in FIG. 31, the ball bending score table 348 defines the score for each combination of the range to which the head speed ν belongs and the range to which the relative face angle η belongs. In the example of FIG. 31, the range to which the head speed ν belongs is classified into five ranges: “less than ν1”, “ν1 or more and less than ν2”, “ν2 or more and less than ν3”, “ν3 or more and less than ν4”, and “ν4 or more”. Has been. The ranges to which the relative face angle η belongs are “less than η1”, “η1 to less than φ2”, “η2 to less than η3”, “η3 to less than η4”, “η4 to less than η5”, “η5 to less than η6”. , “Η6 or more” is classified into seven ranges. For example, when the head speed ν belongs to “less than ν1” and the relative face angle η belongs to “less than η1”, the score is pc1. Each of the points pc1 to pc35 shown in FIG. 31 is, for example, any one of 1 to 5 points.

  The score calculation unit 311 may calculate a score that is so low that the predicted hitting ball is likely to bend based on the relationship between the head speed ν and the relative face angle η. For example, when the head speed ν belongs to “ν4 or more” and the relative face angle η belongs to “less than η1”, it is predicted that the hit ball is likely to be bent like a hook, or the relative face angle η is “η6 or more”. Since the hit ball is likely to be bent like a slice, the score calculation unit 311 calculates a relatively low score. Therefore, in the example of FIG. 31, pc29 and pc35 may be one point which is the lowest point among 1 to 5, for example.

  Further, for example, when the relative face angle η is close to 0 °, the hit ball is expected to fly straight. That is, for example, when the relative face angle η belongs to “η3 to η4”, it is predicted that the face is likely to fly straight, so the score calculation unit 311 calculates a relatively high score (for example, a maximum of 5 points). To do. Accordingly, in the example of FIG. 31, pc4 may be, for example, 5 points which are the highest points among 1 to 5 points.

1-5-8. Calculation of the score of the “ball launch direction” item The score calculation unit 311 is based on the club path (incident angle) ψ and the magnitude of the speed of the head 3a at the time of impact (immediate impact, just before impact or just after impact). The score of the “ball launch direction” item is calculated depending on which of a plurality of ranges a certain head speed ν (hereinafter, head speed ν) belongs to. Specifically, first, the score calculation unit 311 determines which range the club path (incident angle) ψ included in the data related to the swing (input data to be diagnosed) belongs. Further, the score calculation unit 311 calculates the head speed ν included in the data related to the swing (input data to be diagnosed), and determines which range the head speed ν belongs to. Next, the score calculation unit 311 refers to the ball launch direction score table 349 shown in FIG. 32 and calculates the score corresponding to the determination result.

  In the present embodiment, as shown in FIG. 32, the ball launch direction score table 349 defines the score for each combination of the range to which the head speed ν belongs and the range to which the club pass (incident angle) ψ belongs. In the example of FIG. 32, the range to which the head speed ν belongs is classified into five ranges: “less than ν1”, “more than ν1 and less than ν2”, “ν2 and more than ν3”, “ν3 and more than ν4”, and “ν4 and more”. Has been. Further, the range to which the club path (incident angle) ψ belongs is classified into five ranges of “less than ψ1”, “more than ψ1 and less than ψ2”, “ψ2 and more than ψ3”, “ψ3 and more than ψ4”, and “ψ4 and more”. Has been. For example, when the head speed ν belongs to “less than ν1” and the club path (incident angle) ψ belongs to “less than ψ1”, the score is pw1. The numbers pw1 to pw25 shown in FIG. 32 are, for example, any one of 1 to 5 points.

  The score calculation unit 311 may calculate a lower score as the deviation in the hitting direction of the hit ball predicted based on the relationship between the head speed ν and the club path (incident angle) ψ increases. For example, when the head speed ν belongs to “ν4 or more” and the club path (incident angle) ψ belongs to “less than ψ1”, it is predicted that the hit ball is launched leftward, or the club path (incident angle) ψ. When the ball belongs to “φ4 or more”, the hitting ball is expected to be hit in the right direction, and the score calculation unit 311 calculates a relatively low score. Therefore, in the example of FIG. 32, pw21 and pw25 may be, for example, one point that is the lowest point among 1 to 5 points.

  Further, for example, when the club path (incident angle) ψ is close to 0 °, it is expected that the hit ball is launched straight. That is, for example, when the club path (incident angle) ψ belongs to “ψ2 to ψ3”, it is predicted that the club will be straight out, so the score calculation unit 311 has a relatively high score (for example, a maximum of 5 points). ) Is calculated. Therefore, in the example of FIG. 32, pw3 may be, for example, 5 points which are the highest points among 1 to 5 points.

  Here, in the score tables shown in FIGS. 25 to 32, the levels are calculated based on the first index and the second index. As described above, the level of the swing in the biaxial coordinates of the first index and the second index can be calculated to objectively determine the swing of the golf club (conveyance equipment) at the impact.

  In addition, since a score is assigned to each area in advance according to the relationship between the first index and the second index, a lookup table can be used. The lookup table can specify a score based on the first index and the second index, and calculate the score as a level. As described above, the swing is scored according to the relationship between the first index and the second index by the look-up table, so that it is easy and appropriate to objectively determine the swing of the golf club (conveyance equipment) in impact. Can be executed.

1-5-9. Computation of the total score The score calculation unit 311 includes a score for the “V zone” item, a score for the “rotation” item, a score for the “impact” item, a score for the “down blow” item, a score for the “upper blow” item, The total score is calculated based on the score, the score of the “swing efficiency” item, the score of the “ball bending” item, and the “ball launch direction”.

  For example, if the score of each item is a perfect score of 5 and the total score is 100, the score calculation unit 311 will multiply the score of each item by 4 to make a perfect score of 20 points. The total point may be calculated by addition. In the swing diagnosis screen shown in FIG. 9, the maximum score of 5 for each item is displayed on the radar chart, and 64 points obtained by multiplying the score of each item by 4 are added to the total score.

  Further, for example, the score calculation unit 311 may increase the weight of items particularly important for diagnosis (evaluation) of the swing and calculate the total score by adding the scores of each item.

1-5-10. Procedure of Swing Diagnosis Process (Swing Diagnosis Method) FIG. 33 is a flowchart showing an example of a process procedure by the processing unit 21 of the swing analysis apparatus 20 related to the swing diagnosis process. FIG. 34 is a flowchart illustrating an example of a procedure of swing diagnosis processing (swing diagnosis method) by the processing unit 31 of the swing diagnosis apparatus 30. The processing unit 31 (an example of a computer) of the swing diagnosis apparatus 30 executes the swing diagnosis process according to the procedure of the flowchart of FIG. 34 by executing the swing diagnosis program 340 stored in the storage unit 34, for example. Hereinafter, the flowcharts of FIGS. 33 and 34 will be described.

  First, the processing unit 21 of the swing analysis device 20 transmits user identification information assigned to the user 2 to the swing diagnosis device 30 (S100 in FIG. 33).

  Next, the processing unit 31 of the swing diagnosis apparatus 30 receives the user identification information and transmits the list information of the swing analysis data 248 corresponding to the user identification information (S200 in FIG. 34).

  Next, the processing unit 21 of the swing analysis apparatus 20 receives the list information of the swing analysis data 248, and causes the display unit 25 to display a selection screen of swing analysis data (FIG. 7) (S110 in FIG. 33).

  Then, the processing unit 21 of the swing analysis device 20 waits until the swing analysis data 248 is selected on the swing analysis data selection screen (N in S120 in FIG. 33), and when selected (Y in S120 in FIG. 33). ), The selection information of the swing analysis data is transmitted to the swing diagnosis apparatus 30 (S130 in FIG. 33).

  Next, the processing unit 31 of the swing diagnosis apparatus 30 receives the selection information of the swing analysis data (S210 in FIG. 34), and determines the sex (male or female) based on the swing analysis data 248 selected based on the selection information. ) And the type of golf club (driver or iron) are determined (S220 in FIG. 34).

  Further, the processing unit 31 of the swing diagnosis apparatus 30 determines, based on the selected swing analysis data 248, a region to which the head 3a position at the halfway back belongs and a region to which the head 3a position at the halfway down belongs ( (S230 in FIG. 34).

Next, the processing unit 31 of the swing diagnostic apparatus 30 transmits various types of information based on the selected swing analysis data (S240 in FIG. 34). The various information based on the selected swing analysis data includes the determination result of step S220, the determination result of step S230, and some index values (face angle φ, attack angle) included in the selected swing analysis data 248. Information on δ, club path (incident angle) ψ, shaft shaft rotation angle θ _{top at the top} , head speed, grip deceleration rate R _V , grip deceleration time rate R _T is included.

  Next, the processing unit 21 of the swing analysis apparatus 20 receives various types of information based on the selected swing analysis data 248, and causes the display unit 25 to display an input data editing screen (FIG. 8) (S140 in FIG. 33). ).

  Then, the processing unit 21 of the swing analysis apparatus 20 stands by until an operation for starting diagnosis is performed on the input data editing screen (N in S150 in FIG. 33), and when an operation for starting diagnosis is performed (S150 in FIG. 33). Y), the diagnosis target input data is transmitted to the swing diagnosis apparatus 30 (S160 in FIG. 33).

  Next, the processing unit 31 of the swing diagnosis apparatus 30 receives the input data of the diagnosis target (S250 in FIG. 34), and calculates the scores and total points of a plurality of items based on the input data of the diagnosis target (FIG. 34, S260).

  Next, the processing unit 31 of the swing diagnosis apparatus 30 transmits (outputs) information on the scores and total points of a plurality of items to the swing analysis apparatus 20 (S270 in FIG. 34), and ends the swing diagnosis process.

  Then, the processing unit 21 of the swing analysis apparatus 20 receives the information of the scores and the total points of the plurality of items, displays the swing diagnosis screen (FIG. 9) on the display unit 25 (S170 in FIG. 33), and ends the processing. To do.

  In the flowchart of FIG. 33, the order of each process may be appropriately changed within a possible range, a part of the process may be deleted or changed, and another process may be added. Similarly, in the flowchart of FIG. 34, the order of each process may be appropriately changed within a possible range, some processes may be deleted or changed, and other processes may be added.

  FIG. 35 is a flowchart illustrating an example of a procedure of a process (step S260 in FIG. 34) for calculating scores and total points of a plurality of items by the processing unit 31 (score calculation unit 311) of the swing diagnosis apparatus 30. Hereinafter, the flowchart of FIG. 35 will be described.

  First, the processing unit 31 refers to the V zone score table 342 stored in the storage unit 34, and corresponds to the region to which the head 3a position belongs during halfway back and the region to which the head 3a position belongs during halfway down. The score (the score of the “V zone” item) is calculated (S261).

Next, the processing unit 31 refers to the rotation point number table 343 stored in the storage unit 34, and calculates points corresponding to the shaft axis rotation angle θ _top and the face angle φ at the time of _top (the number of “rotation” items). Calculate (S262).

  Next, the processing unit 31 calculates a relative face angle η from the face angle φ and the club path (incident angle) ψ (S263).

  Next, the processing unit 31 refers to the impact score table 344 stored in the storage unit 34 and calculates the score (the score of the “impact” item) corresponding to the relative face angle η and the club path (incident angle) ψ. (S264).

  Next, when the iron is selected as the golf club 3, the processing unit 31 refers to the down blow point number table 345 stored in the storage unit 34, and scores (corresponding to the attack angle δ and the absolute face angle φ ( The “down blow” item score) is calculated (S265). Alternatively, when the driver (wood) is selected as the golf club 3, the processing unit 31 refers to the upper blow point number table 346 stored in the storage unit 34 and corresponds to the attack angle δ and the absolute face angle φ. The score (the score of the “upper blow” item) is calculated (S265).

Next, the processing unit 31 refers to the swing efficiency score table 347 stored in the storage unit 34, and points corresponding to the grip deceleration rate R _V and the grip deceleration time rate _RT (“swing efficiency” item score). Is calculated (S266).

  Finally, the processing unit 31 calculates the “V zone” item score calculated in step S261, the “rotation” item score calculated in step S262, the “impact” item score calculated in step S264, and calculated in step S265. Based on the score of the “down blow” or “upper blow” item and the score of the “swing efficiency” item calculated in step S266, or the “ball bending” item (not shown) and the score of the “ball launch direction”, the total score is calculated. Calculate (S267).

  Based on each score (evaluation result) calculated as described above, the image data generation unit 212 generates image data of swing analysis data 248 (correlation data) as first analysis information related to each index. Processing and image data related to swing analysis data as second analysis information of another user corresponding to the image (for example, “V zone”) displayed on the display unit 25 are generated. Then, the display processing unit 214 causes the display unit 25 to display various images (including characters and symbols in addition to images corresponding to the image data generated by the image data generation unit 212).

  As a specific display method in the display unit 25, for example, an index based on the trajectory of the golf club 3 head at impact based on a scoring result based on a score table of the “bending ball” item as shown in FIG. A two-axis coordinate system based on the correlation between “club path (incident angle)” and “head speed”, which is an index of the magnitude of the head speed at the time of impact (instant of impact, immediately before impact, or immediately after impact) , A correlation diagram of “ball launch direction” can be shown. Further, for example, the inclination of the face surface 74 with reference to the incident direction to the ball hitting point 75 of the head of the golf club 3 at the impact by the scoring result by the score table of the “ball launch direction” item as shown in FIG. The “relative face angle” that is an index (see FIG. 18) that represents the head speed and the “head speed” that is an index of the speed of the head at the time of impact (instant of impact, immediately before impact, or immediately after impact) A correlation diagram of “bending of the ball” can be shown in the two-axis coordinate system based on the correlation.

1-5-11. Display Examples of Swing Diagnosis Screen and Lesson Screen Hereinafter, specific display examples of the display method displayed on the display unit 25 will be described with reference to FIGS. 36A to 45. FIG. 36A is a diagram illustrating a display example of “launch direction” as display example 1; FIG. 36B is a histogram of another display example relating to the “launch direction”. FIG. 37A is a diagram showing a display example of “bend” as display example 2. FIG. 37B is a histogram of another display example relating to “bending”. FIG. 38 is a diagram illustrating a display example showing the swing trajectory RS of the club head of the right-handed subject and the swing trajectory LS of the club head of the left-handed subject. FIG. 39 is a diagram showing a display example in which one of the swing trajectories having a mirror image shape is inverted due to the difference in the dominant hand of the subject and the other is non-inverted. FIG. 40 is a diagram showing “launch direction” and “bend” as Display Example 3. FIG. 41 is a diagram illustrating a modification of the display example 3. FIG. 42 is a diagram showing “launch direction” and “bend” as Display Example 4. FIG. 43 is a diagram in which the target area is displayed in the “launch direction” as Display Example 5. FIG. 44 is a diagram in which the target area is displayed as “bend” as Display Example 6. FIG. 45 is a diagram showing “launch direction” and “bend” as Display Example 7.

(Display example 1)
First, referring to FIGS. 36A and 36B, the display method displayed on display unit 25 includes first area image 80A (time-series area images 81A, 82A, 83A) and second area image 90A. A display example (launch direction) will be described.

  As shown in FIG. 36A, the display unit 25 has one axis as “club path (incident angle)” that is an index based on the trajectory of the head of the golf club 3 at impact, and the other axis as impact. A generally fan-shaped coordinate system is displayed as “head speed” that is an index of the speed of the head at the moment of impact, immediately before impact, or immediately after impact. In other words, this coordinate system is a graph in which two indexes related to the launch direction of the ball are plotted as two axes.

  This coordinate system includes first analysis information (“club path (incident angle)” and “head speed”) generated based on a plurality of data obtained from a plurality of swings and related to the launch direction of each ball. A plurality of time-series area images 81A, 82A, and 83A included in the first area image 80A generated based on (1) are displayed together. In the first area image 80A, the analysis data of the swing obtained by analyzing the previously performed swing is surrounded by a plurality of time-series area images 81A, 82A, and 83A with an outer peripheral line indicating the variation range of the analysis data. Marked areas are shown. In other words, it corresponds to the variation of the plurality of data related to the plurality of swings depending on the size of the area surrounded by the respective outer peripheral lines indicating the variation range of the plurality of time-series region images 81A, 82A, 83A. Yes. In this example, the larger the area, the greater the variation. Note that, in the display example illustrated in FIG. 36A, for example, evaluation results based on the score evaluation based on the score table in the launch direction illustrated in FIG. 32 are plotted.

  The plurality of time-series region images 81A, 82A, and 83A preferably have different display forms. Specifically, as a plurality of time-series display forms, the time-series area image 81A is a solid line, the time-series area image 82A is a dotted line (dashed line), and the time-series area image 83A is a one-dot chain line. It is displayed. Further, in this display example, “a set of analysis data from the present to seven days ago” is shown as an example of the display constituting the time-series area image 81A, and the display constituting the time-series area image 82A is shown. As an example, “A set of analysis data from 8 days to 14 days ago” is shown. As an example of a display constituting the time-series region image 83A, “A set of analysis data from 15 days to 21 days ago” "It is shown. This example content is shown in a legend area (check box) 92.

By the way, a golfer with high skill (User 2) has high reproducibility of swing, and variation of each index when analyzing multiple swings is small, while a golfer with low skill (User 2) has low reproducibility of swing. The variation of each index when analyzing a plurality of swings also tends to increase.
Thus, in this way, in the first area image 80A, the display mode (for example, line type, color, etc.) is displayed differently for each of the time-series area images 81A, 82A, 83A. With regard to the ability (level) related to the launch direction of a ball in a plurality of swings, it can be obtained as visual information that can be specifically and objectively visually recognized including how the transition has been made from the past to the present and variations. .

  In addition, as shown in FIG. 36A, the display unit 25 displays a second region image 90A (launched) corresponding to the first region image 80A of a plurality of swings by another user other than the user 2. The image related to the direction) is displayed together. The second area image 90A shows the degree of concentration of analysis data by mapping (heat map) display of analysis data related to the launch direction of other users on the background of the first area image 80A. In this example, the variation (range of variation) and the concentration level of data are divided by gradation display represented by color shading, and data is concentrated as shown in the legend area (check box) 94. The portion is displayed as a light-colored portion (white portion in this figure).

  In the display example shown in this display example 1, the time-series area images 81A, 82A, and 83A indicating the launch direction of the user 2 are in a plurality of swing states by other users (a plurality of swings by other users). It can be seen that it is slightly biased to the right side in the figure as compared with the white portion where the swing data is concentrated. Thereby, the user 2 can confirm that his / her ability (level) tends to be slightly released in the right direction by comparing with other users (others). Note that the same confirmation can be performed in the following display examples, but the description in each display example is omitted.

  Further, the first region image 80A generated based on the first analysis information (“club path (incident angle)” and “head speed”) is displayed in the orthogonal coordinate system as shown in FIG. Can be displayed as a graph showing the frequency as variation (frequency distribution). The orthogonal coordinate system shown in FIG. 37A is configured by a two-axis coordinate system in which the vertical axis is “frequency (number of occurrences)” and the horizontal axis is “position of data related to the ball launch direction”. In the orthogonal coordinate system shown in FIG. 36B, polygonal lines 84A, 85A, and 86A (first area images) as a plurality of time-series area images are shown. The broken lines 84A, 85A, 86A are shown as regions by lines indicating the variation range of the launch direction as time-series region images regarding the launch direction of the ball in the swing performed previously.

  The display unit 25 also includes second lines as data regarding the launch direction of the ball corresponding to the broken lines 84A, 85A, 86A of the plurality of swings by the broken lines 84A, 85A, 86A and another user other than the user 2. The area image 88A is displayed together. The second area image 88A is displayed in the background of the polygonal lines 84A, 85A, 86A, and shows the distribution (concentration level) of analysis data related to the launch direction of the ball related to a plurality of swings by other users as the frequency distribution by the histogram. Yes.

  The polygonal lines 84A, 85A, 86A as a plurality of time-series area images have different display forms, the polygonal line 84A is indicated by a solid line, the polygonal line 85A is indicated by a dotted line (dashed line), and the polygonal line 86A is indicated by a one-dot chain line. . Further, in this display example, “a set of analysis data from the present to 7 days before” is shown as an example of the display that configures the broken line 84A, and “8 days to 14 days before as an example of the display that forms the broken line 85A” “A set of analysis data from 15 days to 21 days ago” is shown as an example of the display constituting the broken line 86A. This example content is shown in a legend area (check box) 92.

  Even if such a display method is used, as in the fan-shaped coordinate system described above, the user 2 has made a transition from past to present regarding the ability (level) related to the ball launch direction in a plurality of swings. Can be easily identified at a glance.

(Display example 2)
Next, referring to FIGS. 37A and 37B, as a display method displayed on display unit 25, first area image 80B (time-series area images 81B, 82B, 83B) and second area image 90B are displayed. A display example (bending) including this will be described.

  As shown in FIG. 37A, the display unit 25 has one axis as an index representing the inclination of the face surface 74 with respect to the incident direction to the ball hitting point 75 of the head of the golf club 3 at the impact shown in FIG. "Relative face angle" and the other axis is generally fan-shaped coordinates with "head speed" that is an index of the speed of the head at the time of impact (immediate impact, just before impact or just after impact) The system is displayed. In other words, this coordinate system is a graph in which two indexes related to the bending of the ball are plotted as two axes.

  This coordinate system is based on first analysis information ("relative face angle" and "head speed") relating to the bending of each ball generated based on a plurality of data obtained from a plurality of swings. A plurality of time-series area images 81B, 82B, and 83B included in the first area image 80B generated in this manner are displayed together. In the first area image 80B, the analysis data of the swing obtained by analyzing the previously performed swing is set as a plurality of time-series area images 81B, 82B, and 83B and surrounded by an outer peripheral line indicating the variation range of the analysis data. Marked areas are shown. In other words, it corresponds to the variation of the plurality of data related to the plurality of swings depending on the size of the area surrounded by the respective outer peripheral lines indicating the variation range of the plurality of time-series region images 81B, 82B, 83B. Yes. In this example, the larger the area, the greater the variation. Note that, in the display example shown in FIG. 37A, for example, evaluation results based on the score evaluation based on the curve score table shown in FIG. 31 are plotted.

  The plurality of time-series region images 81B, 82B, and 83B preferably have different display forms. Specifically, as a plurality of time-series display forms, the time-series area image 81B has a solid line, the time-series area image 82B has a dotted line (dashed line), and the time-series area image 83B has a single-dot chain line. It is displayed. Further, in this display example, “a set of analysis data from the present to seven days ago” is shown as an example of the display constituting the time-series area image 81B, and the display constituting the time-series area image 82B is shown. As an example, “A collection of analysis data from 8 days ago to 14 days ago” is shown. As an example of a display constituting the time-series region image 83B, “A collection of analysis data from 15 days ago to 21 days ago” "It is shown. This example content is shown in a legend area (check box) 92.

By the way, a golfer with high skill (User 2) has high reproducibility of swing, and variation of each index when analyzing multiple swings is small, while a golfer with low skill (User 2) has low reproducibility of swing. The variation of each index when analyzing a plurality of swings also tends to increase.
Thus, in this way, in the first region image 80B, the display mode (for example, line type, color, etc.) is displayed differently for each of the time-series region images 81B, 82B, 83B. With regard to the ability (level) related to the bending of the ball in a plurality of swings, it can be obtained as visual information that can be specifically and objectively visually recognized including how the transition has been made from the past to the present and variations.

  In addition, as shown in FIG. 37A, the display unit 25 displays a second region image 90B (curved) corresponding to the first region image 80B of a plurality of swings by another user other than the user 2. Are displayed together. The second area image 90B indicates the concentration level of the analysis data by mapping (heat map) display of the analysis data related to the bending of another user's ball on the background of the first area image 80B. In this example, the variation (range of variation) and the concentration level of data are divided by gradation display represented by color shading, and data is concentrated as shown in the legend area (check box) 94. The portion is displayed as a light-colored portion (white portion in this figure).

  In addition, the first region image 80B generated based on the first analysis information (“relative face angle” and “head speed”) has the frequency of each data in an orthogonal coordinate system as shown in FIG. 37B. It can be displayed as a graph showing variation (frequency distribution). The orthogonal coordinate system shown in FIG. 37B is composed of a two-axis coordinate system in which the vertical axis is the frequency (number of occurrences) and the horizontal axis is the position of the data related to bending. In the orthogonal coordinate system shown in FIG. 37B, polygonal lines 84B, 85B, and 86B (first region images) as a plurality of time-series region images are shown. The broken lines 84B, 85B, and 86B are shown as areas by lines indicating the variation range of the curve as a time-series area image regarding the bending of the ball in the swing performed previously.

  The display unit 25 also includes second lines as data relating to the bending of the ball corresponding to the broken lines 84B, 85B, 86B of the plurality of swings by the broken lines 84B, 85B, 86B and another user other than the user 2. The area image 88B is displayed together. The second area image 88B is displayed in the background of the broken lines 84B, 85B, 86B, and shows the distribution (concentration degree) of analysis data regarding the bending of the ball related to a plurality of swings by other users as the frequency distribution by the histogram. .

  The polygonal lines 84B, 85B, 86B as a plurality of time-series area images have different display forms, the polygonal line 84B is indicated by a solid line, the polygonal line 85B is indicated by a dotted line (dashed line), and the polygonal line 86B is indicated by a one-dot chain line. . Further, in this display example, “a set of analysis data from the present to 7 days before” is shown as an example of the display that configures the broken line 84B, and “8 days to 14 days before as an example of the display that forms the broken line 85B” "A set of analysis data from 15 days to 21 days ago" is shown as an example of the display constituting the broken line 86B. This example content is shown in a legend area (check box) 92.

  Even if such a display method is used, how the user 2 has transitioned from the past to the present regarding the ability (level) related to the bending of the ball in a plurality of swings, as in the above-described fan-shaped coordinate system. Identification can be easily performed at a glance.

(User's dominant hand)
Note that the user 2 has a dominant hand, and due to the difference in the dominant hand, for example, in a golf swing, the rotation direction of the swing motion is reversed. For this reason, when comparing motion analysis data of subjects with different dominant hands, the rotation direction of the swing trajectory is displayed in reverse, and thus cannot be overlaid and compared. However, when the motion analysis data of subjects with different dominant hands are mutually used for analysis, it can be dealt with by giving predominant hand information in advance and performing processing such as inverting the image as described below. .

  FIG. 38 shows the swing locus RS of the club head 3a of the golf club 3 of the right-handed subject and the swing locus LS of the club head 3a of the golf club 3 of the left-handed subject on the XZ plane of the absolute coordinate system ΣXYZ. A display example when viewed from the side with projection or three-dimensional display is shown. In FIG. 38, the intersection point O between the X axis and the Y axis is at the origin of the X axis and is the address position (impact position) of the club head 3a. It can be said that the swing trajectory RS and the swing trajectory LS have a mirror inversion relationship with respect to a reference plane including the Z axis passing through the origin O.

  The swing trajectory RS and the swing trajectory LS are substantially mirror images of the reference plane due to the difference in the dominant hand of the subject, and can be automatically determined from the output of the sensor unit 10 whether it is right-handed or left-handed.

  The motion analysis information corresponding to one (for example, LS) of the pair of motions (RS, LS) having a mirror image shape due to the difference in the dominant hand of the subject shown in FIG. 38 is based on the output of the sensor unit 10. 211 (see FIG. 10) and input to the image data generation unit 212 (see FIG. 10). The image data generation unit 212 inverts the sign (+, −) of the value of one motion analysis information, and shows one of the pair of motions (RS, LS) (for example, LS) as shown in FIG. Can be displayed as a reverse image (/ LS).

  Accordingly, as shown in FIG. 39, one of the pair of movements (RS, LS) (for example, LS) is displayed on the side where the other pair of movements (RS, LS) (RS) is displayed. Is displayed in reverse video. That is, for example, an exercise in which the dominant hand is the left hand is displayed in the same orientation as an image of an exercise in which the dominant hand is the right hand. This makes it easy to compare the exercise in which the dominant hand is the left hand and the exercise in which the dominant hand is the right hand, and facilitates the motion analysis.

  When both of the paired relationships (RS, LS) are input, the swing analysis unit 211 calculates the motion analysis information using the output of the sensor unit 10. The image data generation unit 212 inverts one of the motion analysis information (for example, LS) and non-inverts the other (RS), and inverts one of the pair of motions (RS, LS) (for example, / LS). ) And the other (for example, RS) non-inverted image (RS) can be displayed on the screen as shown in FIG.

  In this way, the exercise with the left hand on the dominant hand can be overlaid and displayed in the same orientation as the exercise with the right hand on the dominant hand. It becomes easy.

(Display example 3)
Next, referring to FIG. 40, as a display method displayed on display unit 25, a display example including first area image 80A (time-series area images 81A, 82A, 83A) and second area image 90A. A display method including (the launch direction) and a display example (curvature) including the first region image 80B (time-series region images 81B, 82B, 83B) and the second region image 90B will be described.

  As shown in FIG. 40, the display unit 25 has a fan-shaped first coordinate system including the first region image 80A and the second region image 90A, similar to display example 1 (see FIG. 36A), Similar to Display Example 2 (see FIG. 37A), a fan-shaped second coordinate system including a first area image 80B and a second area image 90B is arranged. The first coordinate system has two axes of “club pass (incident angle)” and “head speed” which are two indices related to the launch direction of the ball. The second coordinate system has two axes of “relative face angle” and “head speed”, which are two indices related to the bending of the ball.

  The first coordinate system and the second coordinate system are arranged in line symmetry so that the main part of the fan of the first coordinate system and the main part of the fan of the second coordinate system overlap. That is, in this display method, two coordinate systems of the first coordinate system and the second coordinate system are arranged in opposite directions in one display unit 25. Since each of the first coordinate system and the second coordinate system is the same as the display example 1 and the display example 2 described above, detailed description thereof is omitted.

  With this display method of display example 3, in addition to the effects of display example 1 and display example 2, user 2 can view both data at a glance, and understand the data and the ability (level). ) Can be efficiently handled.

(Modification of Display Example 3)
Next, with reference to FIG. 41, a modification of the display method described in Display Example 3 will be described. In the display method according to the modification of the display example 3, the display unit 25 includes a display example (launch direction) including the first region image 80A and the second region image 90A, and the first region image 80B and the second region image 90A. And a display example (bent) including the area image 90B.

  In the third modification, similarly to the above-described display example 3, the fan-shaped first coordinate system including the first area image 80A and the second area image 90A, the first area image 80B, and the second area This is a display method in which the fan-shaped second coordinate system including the image 90B is arranged line-symmetrically. The first coordinate system has two axes of “club pass (incident angle)” and “head speed” which are two indices related to the launch direction of the ball. The second coordinate system has two axes of “relative face angle” and “head speed”, which are two indices related to the bending of the ball. In the first area image 80A in the first coordinate system and the first area image 80B in the second coordinate system, swing analysis data obtained by analyzing a previously performed swing is stored in a plurality of time-series areas. As the images 81A, 82A, 83A, 81B, 82B, and 83B, regions surrounded by lines indicating the variation range of the analysis data are shown.

  In the above-described display example 3 shown in FIG. 40, analysis data of a swing obtained by analyzing a previously performed swing is converted into a plurality of time-series area images 81A, 82A, 83A, 81B, 82B, 83B, and the analysis data A region surrounded by a line indicating the variation range is shown. Then, the legend described in the legend area (check box) 92 indicates that the time series conditions of the region images 81A, 82A, 83A, 81B, 82B, and 83B (for example, analysis data from the present to the previous 7 days) The set "~ 7 days") was described.

  On the other hand, in the modified example display method, the legend described in the legend area (check box) 92a is “88.6”, for example, each of the area images 81A, 82A, 83A, 81B, 82B, and 83B. It shows the degree of variation.

This variation degree is obtained by the following mathematical formulas (18) to (26). In the following mathematical formula, for example, normalization of data on the vertical axis and the horizontal axis according to the mathematical formulas (18) and (19) and calculation of an average value based on the mathematical formulas (20) and (21) are performed. Can be obtained. Here, x _i and y _i indicate the horizontal axis and the vertical axis of the graph according to the display example. The obtained degree of variation indicates that the larger this value (the closer to 100), the smaller the variation, that is, the smaller the area of the region surrounded by the outer peripheral line.

  As described above, since the variations of the region images 81A, 82A, 83A, 81B, 82B, and 83B are expressed by the region (image) display and the numerical values, It is easy to identify at a glance whether the ability (level) and the degree of variation have changed.

(Display example 4)
Next, referring to FIG. 42, as a display method displayed on display unit 25, a display example including first area image 80A (time-series area images 81A, 82A, 83A) and second area image 90A. Another example of the display method including (the launch direction) and a display example (curvature) including the first region image 80B (time-series region images 81B, 82B, 83B) and the second region image 90B will be described. To do.

  As shown in FIG. 42, the display unit 25 has a fan-shaped first coordinate system including the first region image 80A and the second region image 90A, similar to display example 1 (see FIG. 36A), and Similar to Display Example 2 (see FIG. 37A), a fan-shaped second coordinate system including a first area image 80B and a second area image 90B is arranged. The first coordinate system has two axes of “club pass (incident angle)” and “head speed” which are two indices related to the launch direction of the ball. The second coordinate system has two axes of “relative face angle” and “head speed”, which are two indices related to the bending of the ball.

  In the display method of Display Example 3, the main part of the first coordinate system fan and the main part of the second coordinate system fan face the same direction, and the main part of the first coordinate system fan is Two coordinate systems are arranged side by side so as to overlap or touch the fan portion of the two coordinate systems. As described above, the display example 4 is a display method in which two coordinate systems of the first coordinate system and the second coordinate system are arranged in the same direction in one display unit 25. Since each of the first coordinate system and the second coordinate system is the same as the display example 1 and the display example 2 described above, detailed description thereof is omitted. In this display example 4, the legend described in the legend area (check box) 92c is a specific date example as the time-series designated range of the area images 81A, 82A, 83A, 81B, 82B, 83B. (For example, 2016.03.14 to 2016.03.20). In this way, a specific date can be specified as a time-series condition (specified range).

  In the display method of display example 4 as well, in the same way as display example 3 described above, in addition to the effects of display example 1 and display example 2, user 2 can view both data at a glance. Therefore, it is possible to efficiently cope with understanding of data and improvement of ability (level).

(Display example 5)
Next, with reference to FIG. 43, a modified example of the display method described in the first display example will be described as a display example 5. In the display method of the display example 5, the first area image 80A and the second area image 90A are displayed on the display unit 25.

  In display example 5, as in display example 1 described above, one axis is displayed on the display unit 25 as “club path (incident angle)” that is an index based on the trajectory of the head 3a of the golf club 3 in impact. A substantially fan-shaped coordinate system is displayed in which the axis of is “head speed” which is an index of the magnitude of the speed of the head 3a at the time of impact (instant of impact, immediately before impact or immediately after impact). This coordinate system includes first analysis information (“club path (incident angle)” and “head speed”) generated based on a plurality of data obtained from a plurality of swings and related to the launch direction of each ball. A plurality of time-series area images 81A, 82A, and 83A included in the first area image 80A generated based on (1) are displayed together.

  In addition, the display unit 25 displays a second region image 90A (an image related to the launch direction) corresponding to the first region image 80A of a plurality of swings by another user different from the user 2 together. doing. The second area image 90A shows the degree of concentration of analysis data by mapping (heat map) display of analysis data related to the launch direction of other users on the background of the first area image 80A.

  In the display method of display example 5, in addition to the first region image 80A (time-series region images 81A, 82A, 83A), the coordinate system having the two indexes displayed in this way as two axes is added. A target area 87A indicating the target state of the user 2 is displayed. The target area 87A can be arbitrarily designated by the user 2.

  By using the display example 5 in which the predetermined target area 87A is displayed as described above, the user 2 can determine the gap between the target and the current with respect to the target in terms of the ball launch direction and the bending method. It is possible to visually and specifically confirm how much the ability (level) (including variation) is, including variation, and confirm it.

  The display method of the display example 5 can also be applied to the display indicating the bending described in the display example 2, the display example 3, the modification of the display example 3, and the display of the display example 4.

(Display Example 6)
Next, with reference to FIG. 44, a modification example of the display method described in the above-described display example 2 will be described as a display example 6. In the display method of the display example 6, the first area image 80B and the second area image 90B are displayed on the display unit 25.

  In the display example 6, as in the display example 1 described above, the inclination of the face surface 74 with respect to the incident direction of the golf club 3 on the ball hitting point 75 on one axis on the display unit 25 is shown on the display unit 25. “Relative face angle” that is an index to be expressed, and the other axis is “head speed” that is an index of the speed of the head 3a at the time of impact (immediate impact, immediately before impact, or immediately after impact). A generally fan-shaped coordinate system is displayed. This coordinate system is based on first analysis information ("relative face angle" and "head speed") relating to the bending of each ball generated based on a plurality of data obtained from a plurality of swings. A plurality of time-series area images 81B, 82B, and 83B included in the first area image 80B generated in this manner are displayed together.

  In addition, the display unit 25 displays a second region image 90B (an image related to bending) corresponding to the first region image 80B of a plurality of swings by another user, different from the user 2, together. ing. The second area image 90B shows the degree of concentration of the analysis data on the background of the first area image 80B by mapping (heat map) display of analysis data related to the bending of another user.

  In the display method of display example 6, the coordinate system is divided into a plurality of regions. In this display example 6, the coordinate system is divided into four regions of a first quadrant Z1, a second quadrant Z2, a third quadrant Z3, and a fourth quadrant Z4 by reference lines DL1 and DL2. Then, for each of the four divided areas (the first quadrant Z1, the second quadrant Z2, the third quadrant Z3, and the fourth quadrant Z4), the proportion of the plot points of the second area image 90B is the display area 96. It is displayed in percentage (%).

  According to such a display, a plurality of swings of another user included in each region (first quadrant Z1, second quadrant Z2, third quadrant Z3, and fourth quadrant Z4) into which the coordinate system is divided. Occupancy ratio of the second region image 90B related to the estimated information obtained by estimating at least one of the ball launch direction and the bending direction corresponding to the ball, that is, at least one of the ball launch direction and the bending direction with respect to each swing The occupation ratio related to the estimation information is displayed. Thereby, the user 2 can know the swing state of the other person. In addition, the user 2 can objectively check the ball launch direction and the bias regarding the bending method in his / her plurality of swings while comparing with the swings of others.

  The coordinate system is divided into four regions (first quadrant Z1, first quadrant Z1, second quadrant Z1, second quadrant Z2, third quadrant Z3, and fourth quadrant Z4) by reference lines DL1 and DL2. For each of the second quadrant Z2, the third quadrant Z3, and the fourth quadrant Z4), the proportion of the plot points as the first area image 80B, which is the analysis data of the user 2, is a percentage (%) in the display area 96. It may be displayed.

  According to the display shown in the display example 1 to the display example 6 described above, based on the first analysis information generated based on the data related to the plurality of swings, the launch directions of the plurality of balls corresponding to the plurality of swings, A plurality of time-series area images 81A, 82A, 83A, 81B, 82B, and 83B included in the first area images 80A and 80B in which at least one of the bending directions is estimated, and a coordinate system having at least two indices as axes. Display together. By performing such display, the user 2 can detect variations in at least one of a plurality of ball launch directions and bending directions corresponding to a plurality of swings, in other words, a plurality of ball launch directions and bending directions. The degree of the current ability (level) of the user 2 related to at least one of them can be confirmed and confirmed specifically and objectively including variations.

  Further, according to the display method described above, the first region images 80A and 80B of the user 2 and the first region images 80A and 80B of a plurality of swings of another user other than the user 2 correspond to the first region images 80A and 80B. The two area images 90A and 90B are displayed together in a coordinate system having the two indexes of the display unit 25 as axes. Thereby, the user 2 can easily compare the first area images 80A and 80B of the user 2 and the second area images 90A and 90B related to the swing of the other person, and perform objective evaluation. Can do. For example, if a user other than user 2 is modeled as another person, such as a leader or a professional golfer, the objective of how far the ability of user 2 is different from the ability of the leader or professional golfer Can be evaluated.

(Display example 7)
Next, referring to FIG. 45, as a display method displayed on display unit 25, a display example including first area image 80A (time-series area images 81A, 82A, 83A) and second area image 90A. A display method including (the launch direction) and a display example (curvature) including the first region image 80B (time-series region images 81B, 82B, 83B) and the second region image 90B will be described.

  As shown in FIG. 45, the display unit 25 has a fan-shaped first coordinate system including the first region image 80A and the second region image 90A, similar to the display example 1 (see FIG. 36A), Similar to Display Example 2 (see FIG. 37A), a fan-shaped second coordinate system including a first area image 80B and a second area image 90B is arranged. The first coordinate system has two axes of “club pass (incident angle)” and “head speed” which are two indices related to the launch direction of the ball. The second coordinate system has two axes of “relative face angle” and “head speed”, which are two indices related to the bending of the ball.

  The first coordinate system and the second coordinate system are arranged symmetrically with the vertical axis in the middle. Specifically, in one first coordinate system (launching direction), an index of “head speed” is arranged on the vertical axis side, and the other second coordinate system (bending) is arranged on the vertical axis side with “relative face”. A “corner” index is placed. Since each of the first coordinate system and the second coordinate system is the same as the display example 1 and the display example 2 described above, detailed description thereof is omitted.

  With the display method of display example 7, in addition to the effects of display example 1 and display example 2, user 2 can view both data at a glance, and can understand and improve data. Can be efficiently handled.

(Modification 1 of display method)
Note that the ball's flying line (flying ball trajectory) can be estimated and displayed from the analysis data (first region images 80A and 80B) such as the ball launch direction, the bending of the ball, and the head speed described above. . Such a display method will be described below as Modification 1 according to another display method of analysis results with reference to FIG. FIG. 46 is a diagram illustrating a first modification example related to another display method of analysis results.

  The display according to the modified example 1 shows the number of points of the “bending of the ball” item according to the range to which the head speed ν and the relative face angle η belong as shown in FIG. 31, or the club path (incident angle) ψ as shown in FIG. And the head speed ν can be formed based on the result calculated by the score of the “ball launch direction” item.

  As shown in FIG. 46, in the first modification related to the other display of the analysis result, the hitting point P1, the flying ball lines (flying ball trajectories) FC1 and FC2, and the distribution of the ball arrival positions ( Area images 81d, 82d, and 83d showing variation) and a target area 84d of the user 2 are shown on the display unit 25. Ball flying lines (flying ball trajectories) FC1 and FC2 indicate the movement trajectory of the ball from the hitting point to the arrival position, which is estimated based on the analysis result based on the swing measurement data of the user 2. The area images 81d, 82d, and 83d show the distribution (variation) of the estimated arrival positions of the balls, and are shown as areas surrounded by outer peripheries of sets that are divided for each time series. In addition, for example, in the flying ball line (flying ball trajectory) FC1, the ball flew sliced and reached the arrival position, and in the flying ball line (flying ball trajectory) FC2, the ball flew substantially straight (straightly). It indicates that the position has been reached.

  The plurality of time-series region images 81A, 82A, and 83A correspond to the variation in data related to the plurality of swings depending on the size of the area surrounded by the respective outer peripheral lines. In this example, the larger the area, the greater the variation. This example content is shown in the legend area (check box) 96d2. In addition, the degree of variation of the plurality of time-series area images 81A, 82A, and 83A can be displayed. In the drawing, in the display method of the modification example of the display example 3, the legend is described as “88.2”, for example, as described in the legend area (check box) 92a, and the region image is displayed. The variations of 81d, 82d, and 83d are shown. The degree of variation indicates that the larger this value (the closer to 100), the smaller the variation, that is, the smaller the area of the region surrounded by the outer peripheral line.

  In addition, the display unit 25 displays, as comparison targets, second region images (in the arrival position) corresponding to the first region images 81d, 82d, and 83d of a plurality of swings by another user other than the user 2. Such images) can be displayed together. In FIG. 46, the distribution (variation) is shown in the background of the first area images 81d, 82d, and 83d by the density of the plot.

  According to the modification 1 of such a display method, the user 2 can confirm the movement trajectory of the ball hit by the user 2 on the image display and is easy to understand.

  Note that the flying ball lines (flying ball trajectories) FC1 and FC2 can also be displayed as an image showing an area for each time series or an area display for displaying the degree of variation. With such a display, it is possible to perform confirmation including further variations.

(Modification 2 of display method)
Next, with reference to FIG. 47, the modification 2 which concerns on the other display of an analysis result is demonstrated. FIG. 47 is a diagram illustrating a second modification example relating to another display of the analysis result.

  As shown in FIG. 47, in the second modified example related to the other display of the analysis result, the target performance data such as professional golfers A, B, and C are displayed in the area. Then, by plotting a time-series result from the previous result value P of the user 2, for example, a line segment L10 or a line segment L20 can be drawn. For example, when the user 2 is aiming at the professional golfer C, it can be seen that if the time-series plots are arranged like the line segment L10, the user 2 is approaching the target figure. On the other hand, if the time-series plots are arranged like the line segment L20, it can be seen that the target figure is moving away, in other words, not toward the target figure.

  Thus, the actual value P that is the current ability of the user, the area display of the target area (actual data such as professional golfers A, B, and C), and the actual value plotted in time series from the actual value P Since it is displayed, the user 2 can visually understand at a glance whether the user 2 is heading for the swing target.

  The area display of the target area (actual data of professional golfers A, B, C, etc.) can be changed by tapping the screen, for example, the position of the target area.

  In the above-described embodiment, the swing analysis unit 211 detects the impact using the square root of the sum of squares as shown in Expression (2) as the combined value of the triaxial angular velocities measured by the sensor unit. As the combined value of the axial angular velocities, for example, the sum of squares of the three axial angular velocities, the sum of the three axial angular velocities or the average value thereof, and the product of the three axial angular velocities may be used. Instead of the combined value of the three-axis angular velocities, a combined value of the three-axis accelerations such as a sum of squares of the three-axis accelerations or a square root thereof, a sum of the three-axis accelerations or an average value thereof, and a product of the three-axis accelerations may be used. .

  In the above embodiment, without displaying the input data editing screen as shown in FIG. 8, the score calculation unit 311 calculates the score and total score of a plurality of items based on the selected swing analysis data 248. Also good. In addition, the score calculation unit 311 is based on input data (for example, data in which all the indexes are manually input) based on input data in which all the index values indicating the characteristics of the swing are pseudo values. A total score may be calculated.

  In the above embodiment, the score calculation unit 311 includes the “V zone”, “rotation”, “impact”, “down blow” or “upper blow”, “efficiency (swing efficiency)”, “head speed”, Although the scores of the seven items of “hand-up” are calculated, the scores of some of these items may not be calculated, and the scores of other items may be calculated. Moreover, in said embodiment, although the score calculation part 311 is calculating the total score, it is not necessary to calculate a total score. In addition, “head speed”, “hand up” and the like are included in five items of “V zone”, “rotation”, “impact”, “down blow” or “upper blow”, and “swing efficiency (efficiency)”. Other items may be added, as long as information relating to at least one of these items is included.

  Moreover, in said embodiment, although the score calculation part 311 calculates the score of several items using various score tables, it may replace with a score table and may use a numerical formula.

  In the above embodiment, the score calculation unit 311 also functions as the swing analysis unit 211, and includes the swing analysis process based on the measurement data (output signal of the inertial sensor) of the sensor unit 10 that is data related to the swing. Swing diagnosis processing (swing analysis processing and score calculation processing) may be performed.

  In the above embodiment, in order to define the areas A, B, C, D, and E to which the head 3a belongs, the concept of a V zone (area sandwiched between the shaft plane and the Hogan plane) is introduced. This V zone is a region sandwiched between the first virtual plane along the longitudinal direction of the golf club 3 and the second virtual plane passing near the shoulder of the user 2 (see FIG. 48A). The first imaginary plane is, for example, a so-called shaft plane that is specified by a first axis along the target direction of the hit ball and a second axis along the longitudinal direction of the golf club 3 before the start of the swing. The second plane is, for example, a so-called Hogan plane that includes the first axis and forms a predetermined angle with respect to the first virtual plane. However, the second virtual surface may be a virtual surface parallel to the first virtual surface (including both a virtual surface parallel to the first virtual surface and a virtual surface along the first virtual surface). Incidentally, the parallel virtual plane is sometimes called a “shoulder plane” (see FIG. 48B). In the above embodiment, the second virtual surface may be calculated based on both the first virtual surface and the physical information 244 of the user 2, and the surface having a predetermined relationship with the first virtual surface is the second. It may be a virtual surface.

  Further, the method of defining the first virtual surface and the second virtual surface is not limited to these, and for example, a virtual surface as shown in FIG. 48C may be used. The two virtual surfaces shown in FIG. 48C are virtual surfaces set based on the posture of the shaft before the start of the swing, and the first virtual surface is a virtual surface passing near the elbow of the user 2, and the second virtual surface Is a virtual plane passing near the user's knee. In addition, the first virtual surface and the second virtual surface are not parallel and, for example, intersect each other on an extended straight line in the grip end direction of the golf club 3.

  In addition to the first region image 80A and the second region image 90A displayed as an image on the display unit 25 as described above, the diagnostic information based on the first region image 80A or the diagnostic information A comment indicating the practice method can be displayed. As described above, the diagnosis information and the practice method based on the diagnosis information are displayed as comments, so that the user 2 can easily understand the state of the swing and perform a suitable response to the improvement of the swing. And can practice efficiently.

1-6. Modification Example of Motion Analysis System Next, a modification example of the motion analysis system will be described with reference to FIGS. 49 and 50. FIG. 49 is a diagram illustrating a configuration example of a motion analysis system according to a modification, and FIG. 50 is a diagram illustrating an arrangement example of a sensor unit and a swing analysis device according to the modification.

  As shown in FIGS. 49 and 50, the swing diagnosis system 1000 as the motion analysis system according to the modification includes a sensor unit (an example of an inertial sensor) 10, a user terminal 320, a customer terminal 350, and a server 300. Has been. Among these, the user terminal 320, the customer terminal 350, and the server 300 are connected to a network 40 such as the Internet and can transmit and receive information to and from each other. The usage example of the sensor unit 10 is the same as that of the above-described embodiment, and the flow of information transmitted and received among the sensor unit 10, the user terminal 320, the server 300, and the customer terminal 350 is as shown in FIG.

  The user of the sensor unit 10 is, for example, a purchaser of the sensor unit 10. The sensor unit 10 is attached to, for example, a golf club 3 owned by a user and used for practice of a golf swing by the user. The operator of the user terminal 320 is the same as the user. The user terminal 320 is used when the user operates the sensor unit 10 or when the user accesses the server 300.

  The manager of the customer terminal 350 is a golf equipment manufacturer or a golf equipment shop that handles various types of golf clubs (an example of exercise equipment). The manufacturer or shop is a customer for the administrator of the server 300 (hereinafter referred to as “customer” as appropriate). A user visits the manufacturer or shop for the purpose of purchasing a golf club.

  The operator of the customer terminal 350 is a customer (manufacturer or shop) employee. In this variation, the employee finds a golf club that fits the user by making a trial hit by a user who visits the manufacturer or shop, and prompts the user to purchase the golf club (hereinafter simply referred to as “fitter”). )).

  The administrator of the server 300 is, for example, a person who has promised in advance that a program for controlling the sensor unit 10 and various types of information will be provided to the user terminal 320. Further, the administrator of the server 300 is also a person who promises in advance that information will be individually provided to a plurality of customers including the customer (that is, the manufacturer or the shop) of this modification.

  A user (not shown) attaches the sensor unit 10 to his / her own golf club 3 and inputs his / her physical information, information about the golf club (golf club information), sensor mounting position information, and the like to the user terminal 320. . The physical information includes, for example, the user's height, arm length, leg length, gender, and other information. The golf club information includes, for example, the manufacturer name, product number, count, club type (head type and shaft type), specifications (length, center of gravity, lie angle, face angle, loft angle, etc.) of the golf club 3 Information is included.

  Next, the user performs a measurement start operation (operation for causing the sensor unit 10 to start measurement) via the user terminal 320. Next, after receiving a notification (for example, a voice notification) instructing the user terminal 320 to take an address posture (basic posture before the start of the swing) from the user terminal 320, the longitudinal axis of the shaft of the golf club 3 is the target. The posture of the address is taken so as to be perpendicular to the line (target direction of the hit ball), and it stops. The user posture shown in FIG. 2 is an address posture.

  Next, after receiving notification (for example, notification by voice) that allows the user to swing from the user terminal 320, the user performs a swing motion and hits the golf ball 4.

  When the user performs a measurement start operation, a measurement start command is transmitted from the user terminal 320 to the sensor unit 10, the sensor unit 10 starts measuring the triaxial acceleration and the triaxial angular velocity, and the measured data (measurement data) is Sequentially transmitted to the user terminal 320. Thereafter, the user terminal 320 analyzes the swing motion based on the received measurement data, and transmits the swing analysis data to the server 300 when generating the swing analysis data.

  In addition, after a swing (back swing) is started, the swing operation by the user is a half way back in which the shaft of the golf club 3 is horizontal during the back swing, a top switching from the back swing to the down swing, and a golf club during the down swing. 3 includes an operation to reach an impact (hit ball) for hitting the golf ball 4 through each state such as a halfway down where the shaft 3 is horizontal. The swing analysis data transmitted from the user terminal 320 to the server 300 includes, for example, swing time (date and time), user identification information (user ID), user gender, golf club information, user physical information, and sensor wearing. Position information and the like are given.

  Here, the user of this modified example, for example, when the flight distance does not increase even if the golf club is continuously used, in order to consider purchasing a new golf club, the shop or manufacturer that is the owner of the customer terminal 350 Visit.

  The fitter operates the customer terminal 350 to access the server 300, calls the home screen (user ID input screen), and displays it on the customer terminal 350.

  Next, the fitter prompts the user to input the user ID of the user who visited the shop or manufacturer into the customer terminal 350.

  When the user ID is input to the customer terminal 350, the user ID and customer ID are transmitted from the customer terminal 350 to the server 300. Here, it is assumed that the customer terminal 350 stores a customer ID in advance. If not stored, the fitter may input the customer ID into the customer terminal 350. Further, the user ID may be input to the customer terminal 350 by the fitter instead of the user.

  Thereafter, the diagnosis result is transmitted from the server 300 to the customer terminal 350 and displayed on the customer terminal 350. The diagnosis result in this modification includes a recommended golf club type (recommended club type) recommended by the shop or manufacturer to the user. The recommended club type is represented by, for example, a combination of a recommended shaft type and a recommended head type.

  Next, the fitter confirms the recommended club type displayed on the customer terminal 350, and one or more golf clubs belonging to the recommended club type from among a plurality of golf clubs stored in the shop or manufacturer to which the fitter belongs. To pick up.

  Next, the fitter asks the user to make a trial hit (swing) with one or more golf clubs that have been picked up, and determines whether or not the picked-up golf club fits the user.

  If the fitter determines that the picked-up golf club does not fit the user, the fitter picks up another type of golf club stored by the shop or manufacturer and asks the user to make a test. By repeating this, the fitter searches for a club type that fits the user.

  When a club type that fits the user is found, the user purchases a golf club of the fit type.

  When the user purchases a golf club, the fitter inputs the club type (purchased club type) of the golf club purchased by the user to the customer terminal 350. The fitting data is input by the fitter, for example, by selecting (touching or clicking) an area to which the purchased club type belongs.

  As a result, fitting data indicating the combination of the recommended club type and the purchased club type is transmitted from the customer terminal 350 to the server 300.

  If the difference between the recommended club type and the purchased club type is small, it can be considered that the accuracy of the swing diagnosis by the server 300 is high (the recommended club type fits the user). When the difference from the type is large, it can be considered that the accuracy of the swing diagnosis by the server 300 is low (the recommended club type did not fit the user).

  Therefore, in this modification, the fitting data transmitted to the server 300 is used for correction (feedback correction) of a diagnostic table (an example of a diagnostic criterion) in the server 300. The diagnostic table that is the target of feedback correction is a diagnostic table dedicated to the customer (shop or manufacturer) of this variation.

  Therefore, in this modification, as the number of times the fitter uses the swing diagnosis system 1000 increases, a diagnosis table (an example of customer diagnosis criteria) dedicated to the customer (shop or manufacturer) is optimized (customized), and the swing is performed. The accuracy of diagnosis is improved. That is, the possibility that the recommended club type fits the user is improved.

  And if the accuracy of swing diagnosis is improved, even if the fitter belonging to the shop or manufacturer is a beginner, it will shorten the time required to find a golf club that fits the user (the time required for fitting). Can do. In this case, the time required for the user to purchase the golf club is also shortened.

  Further, based on the recommended club type supported by the swing diagnosis system 1000, the fitter can perform the fitting with confidence even if he has little experience, and can give the user a sense of security.

  In this example, “combination of recommended club type and purchased club type” was used as the fitting data. However, instead of “purchased club type” or together with “purchased club type”, “Fitter's impression” and “by fitter” It is also possible to use at least one of “pointed out”, “improvement point by fitter”, and the like.

  When the server 300 receives the user ID and the customer ID from the customer terminal 350, the server 300 and the customer diagnosis result (recommended) based on the user swing analysis data and the customer diagnosis table stored in the server 300 in advance. Club type) is acquired and transmitted to the customer terminal 350.

  In addition, when the server 300 receives the fitting data (combination of the recommended club type and the purchased club type) from the customer terminal 350, the server 300 feeds back the customer diagnosis table in a direction in which the difference between the recommended club type and the purchased club type is compressed. Correct it.

  Further, the server 300 adjusts the strength of feedback correction (whether feedback correction is performed, the shift amount of the boundary position, the timing of feedback correction, etc.) according to the reliability of the received fitting data.

  The server 300 also estimates the reliability of the received fitting data based on the customer fitting data, the user swing analysis data, and the like.

  As described above, the swing diagnosis system 1000 can be configured by a server administrator, a golf manufacturer or golf equipment shop as a customer, and a user who visits the golf equipment shop for the purpose of purchasing a golf club.

1-7. Application Example of Motion Analysis Device Next, an example in which a head-mounted head mounted display (HMD) is used as the swing analysis device 20 will be described with reference to FIG. FIG. 51 is a perspective view showing an example of a head mounted display (HMD) as a motion analysis apparatus.

1-7-1. Application example 1
As shown in FIG. 51, the head mounted display (HMD) 500 includes a spectacle body 501 that is worn on the head of the user 2. The glasses main body 501 is provided with a display unit 502. The display unit 502 superimposes the virtual image of the image display unit 503 on the real image of the external world viewed from the user 2 by integrating the light beam emitted from the image display unit 503 with the light beam directed from the outside world toward the eyes of the user 2.

  The display unit 502 includes an image display unit 503 such as an LCD (liquid crystal display), a first beam splitter 504, a second beam splitter 505, a first concave reflection mirror 506, and a second concave reflection mirror 507, for example. A shutter 508 and a convex lens 509 are provided.

  The first beam splitter 504 is disposed in front of the left eye of the user 2 and partially transmits and partially reflects light emitted from the image display unit 503. The second beam splitter 505 is disposed in front of the right eye of the user 2 and partially transmits and partially reflects the partially transmitted light from the first beam splitter 504.

  The first concave reflecting mirror 506 is disposed in front of the first beam splitter 504, partially reflects the partially reflected light of the first beam splitter 504, transmits the first beam splitter 504, and guides it to the left eye of the user 2. . The second concave reflecting mirror 507 is disposed in front of the second beam splitter 505, partially reflects the partially reflected light of the second beam splitter 505, and transmits the second beam splitter 505 to transmit the right eye of the user 2. Lead to.

  The convex lens 509 guides the partially transmitted light of the second beam splitter 505 to the outside of the head mounted display (HMD) 500 when the shutter 508 is opened.

  Such a head-mounted display (HMD) 500 includes analysis information (see FIGS. 36A to 47) in a series of swing operations of the user 2 and a swing that approximates the swing operation as shown in the above display example. Swing information such as a locus (not shown) is displayed. Since the display contents are the same as those in the above-described display examples and modifications, detailed description thereof is omitted.

  According to the head-mounted display (HMD) 500 described above, since the display is performed while being worn on the head, the user 2 displays information on his / her own swing analysis information, hand 2a posture (position) information, and the like. The swing analysis device (motion analysis device) 20 provided with the display unit 25 can be confirmed without holding it by hand.

  The head mounted display (HMD) 500 has the function of the swing analysis device 20 and may perform swing analysis and display of swing information based on the measurement data of the sensor unit 10 or a separate swing analysis device 20. You may use as a display part which displays image data transmitted from. Note that the functions of the swing analysis device (motion analysis device) 20 are the processing unit 21 (an example of the processing unit), the communication unit 22, the operation unit 23, the storage unit 24, the display unit 25, and the sound output as described above. Part 26 is included.

1-7-2. Application example 2
Next, an example in which an arm-mounted analysis display device is used as an example of a wearable type (body-mounted type) will be described with reference to FIG. FIG. 52 is a perspective view showing an arm-mounted type motion analysis display device as an example of a wearable type.

  As shown in FIG. 52, the wearable (arm-mounted) analysis display device 600 is attached to a given part (in this example, the wrist) of the user (subject) 2 (see FIG. 2), and the sensor unit 10 Swing analysis based on measurement data (see FIG. 2) and display of swing information are performed. The analysis display device 600 is attached to the user 2 and displays a swing analysis and swing analysis information such as posture information of the hand 2a (see FIG. 2) of the user 2 and a device main body 610 attached to the device main body 610. And a band portion 615 for mounting to the user 2.

  In the instrument main body 610 of the analysis display device 600, a bottom case 613 is disposed on the side attached to the user 2, and a top case 611 is disposed on the side opposite to the side attached to the user 2. A bezel 618 is provided on the top side (top case 611) of the device body 610, and a glass plate 619 is provided as a top plate portion (outer wall) that is disposed inside the bezel 618 and protects the internal structure. Yes. In addition, a pair of band mounting portions 617 that are connecting portions to the band portion 615 are provided on both sides of the bottom case 613.

  The device body 610 includes a display unit such as a liquid crystal display (LCD 634) immediately below the glass plate 619. The user 2 can view the swing analysis information displayed on the liquid crystal display (LCD 634) and the posture information of the hand 2a of the user 2 through the glass plate 619. Further, the device main body 610 is similar to the swing analysis apparatus 20 of the embodiment described above with reference to FIG. 10, and includes a processing unit 21, a communication unit 22, an operation unit 23, a storage unit 24, a display unit 25, and a sound output unit. 26 may be included. The display unit 25 corresponds to a display unit such as a liquid crystal display (LCD 634) in this example.

  The display unit of the liquid crystal display (LCD 634) includes analysis information (see FIGS. 36A to 47) in a series of swing motions of the user 2 as shown in the above display example, and a swing trajectory approximating the swing motion ( Swing information such as (not shown) is displayed. Note that the display (presentation) contents are the same as those in the above-described display example, and thus detailed description thereof is omitted.

  Further, other advice information based on the swing analysis result, for example, a text image representing the swing type of the user 2 and advice (practice method etc.) suitable for the swing type of the user 2 are displayed on the display unit of the liquid crystal display (LCD 634). You may display the text image to represent. A moving image may be displayed as a video image on the display unit of the liquid crystal display (LCD 634).

  In the above description, an example in which the top plate portion of the device main body 610 is realized by the glass plate 619 is a transparent member capable of browsing the LCD 634, and is included in the top case 611 and the bottom case 613 such as the LCD 634. The top plate portion can be made of a material other than glass, such as transparent plastic, as long as the member has a strength that can protect the structure. Further, although a configuration example in which the bezel 618 is provided is shown, a configuration in which the bezel 618 is not provided may be used.

  According to the wearable type (arm wearing type) analysis display device 600 described above, since the display is performed while being worn on the arm part, the user 2 needs his / her own swing information and posture (position) information of the hand 2a. It is possible to check the information without holding the display unit (liquid crystal display (LCD 634)) on which the information is displayed.

  The wearable (arm-mounted) analysis display device 600 has the function of the swing analysis device 20 described above, and may perform swing analysis based on measurement data of the sensor unit 10 and display of swing information. You may use as a display part which displays the image data transmitted from the separate swing analysis apparatus 20. FIG. The functions of the swing analysis device (motion analysis device) 20 are the processing unit 21 (an example of a processing unit), the communication unit 22, the operation unit 23, and the storage as described in the swing analysis device 20 of the above-described embodiment. Unit 24, display unit 25, and sound output unit 26.

  The present invention includes configurations that are substantially the same as the configurations described in the embodiments (for example, configurations that have the same functions, methods, and results, or configurations that have the same objects and effects). In addition, the invention includes a configuration in which a non-essential part of the configuration described in the embodiment is replaced. In addition, the present invention includes a configuration that exhibits the same effects as the configuration described in the embodiment, or a configuration that can achieve the same object. In addition, the invention includes a configuration in which a known technique is added to the configuration described in the embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Motion analysis system (swing analysis system), 2 ... User as test subject, 2a ... User's hand, 3 ... Golf club (exercise apparatus), 3a ... Head, 4 ... Golf ball, 10 ... Sensor unit as inertial sensor , 12 ... acceleration sensor, 14 ... angular velocity sensor, 16 ... signal processing unit, 18 ... communication unit, 20 ... swing analysis device (motion analysis device), 21 ... processing unit, 22 ... communication unit, 23 ... operation unit, 24 ... Storage unit, 25 ... display unit, 26 ... sound output unit, 27 ... communication unit, 40 ... network, 80A ... first region image, 81A, 82A, 83A, 81B, 82B, 83B ... time-series region image, 90A ... second region image, 92, 92a, 94, 94c ... legend area (check box), DL1, DL2 ... reference line, 210 ... data acquisition unit, 211 ... Ing analysis unit, 212 ... image data generation unit, 213 ... storage processing unit, 214 ... display processing unit, 215 ... sound output processing unit, 240 ... swing analysis program, 242 ... golf club information, 244 ... body information, 246 ... sensor Mounting position information, 500... Head mounted display (HMD), 600... Wearable type (arm mounting type) analysis display device, 1000... Swing diagnosis system.

Claims (29)

Based on a plurality of data relating to the plurality of swings output from an inertial sensor that is attached to a user or an exercise device on which the user swings and measures a plurality of swings by the user, and the launch direction of each ball, and Generating first analysis information relating to at least one of the bending directions of the ball;
Based on the first analysis information, a first region image is displayed in a coordinate system with at least two indices as axes.
Display method. In claim 1,
The two indicators are:
When the first analysis information relates to the launch direction of the ball, it is a head speed and a club pass,
When the first analysis information relates to how the ball bends, it is a head speed and a relative face angle.
Display method. In claim 1 or 2,
A predetermined target area is displayed in the coordinate system,
Display method. In any one of Claims 1 thru | or 3,
The first region image includes a plurality of time-series region images,
Displaying the plurality of time-series area images in the coordinate system;
Display method. In any one of Claims 1 thru | or 4,
The display form is different for each time-series area image,
Display method. In any one of Claims 1 thru | or 5,
The area of the time-series region image is a size according to the variation of the plurality of data related to the plurality of swings,
Display method. In any one of Claims 1 thru | or 6,
Displaying a second area image corresponding to the first area image and a first area image of a plurality of swings of a user different from the user in the coordinate system;
Display method. In claim 7,
The coordinate system is divided into a plurality of regions,
For each of the plurality of divided areas, a ratio occupied by the second area image is displayed.
Display method. In claim 7 or 8,
The coordinate system is divided into a plurality of regions,
For each of the plurality of divided areas, a ratio occupied by the first area image is displayed.
Display method. In any one of Claims 1 thru | or 9,
Displaying the trajectory of the ball from the launch position to the arrival position on the coordinate system;
Display method. In any one of Claims 1 thru | or 10,
The first analysis information includes information related to at least one of impact, V zone, efficiency, rotation, head speed, hand up, and down blow.
Display method. In any one of Claims 1 thru | or 11,
Displaying diagnostic information based on the first region image;
Display method. In claim 12,
Based on the diagnostic information, a practice method is displayed.
Display method. Based on a plurality of data relating to the plurality of swings output from an inertial sensor that is attached to a user or an exercise device on which the user swings and measures a plurality of swings by the user, and the launch direction of each ball, and An analysis unit that generates first analysis information related to at least one of the bending directions of the ball;
Based on the first analysis information, a display unit that displays a first region image in a coordinate system having at least two indices as axes;
Swing analysis device equipped with. In claim 14,
The two indicators are:
When the first analysis information relates to the launch direction of the ball, it is a head speed and a club pass,
When the first analysis information relates to how the ball bends, it is a head speed and a relative face angle.
Swing analysis device. In claim 14 or 15,
A predetermined target area is displayed in the coordinate system,
Swing analysis device. In any one of claims 14 to 16,
The first region image includes a plurality of time-series region images,
Displaying the plurality of time-series region images together in the coordinate system;
Swing analysis device. In any one of claims 14 to 17,
The display form is different for each time-series area image,
Swing analysis device. In any one of claims 14 to 18,
The area of the time-series region image is a size according to the variation of the plurality of data related to the plurality of swings,
Swing analysis device. In any one of claims 14 to 19,
Displaying a second area image corresponding to the first area image and a first area image of a plurality of swings of a user different from the user in the coordinate system;
Swing analysis device. In claim 20,
The coordinate system is divided into a plurality of regions,
For each of the plurality of divided areas, a ratio occupied by the second area image is displayed.
Swing analysis device. In claim 20 or 21,
The coordinate system is divided into a plurality of regions,
For each of the plurality of divided areas, a ratio occupied by the first area image is displayed.
Swing analysis device. In any one of claims 14 to 22,
Displaying the trajectory of the ball from the launch position to the arrival position on the coordinate system;
Swing analysis device. A method according to any one of claims 14 to 23.
The first analysis information includes information related to at least one of impact, V zone, efficiency, rotation, head speed, hand up, and down blow.
Swing analysis device. In any one of claims 14 to 24,
Displaying diagnostic information based on the first region image;
Swing analysis device. In claim 25,
Based on the diagnostic information, a practice method is displayed.
Swing analysis device. A swing analysis device according to any one of claims 14 to 26;
An inertial sensor,
Including swing analysis system. Based on a plurality of data relating to the plurality of swings output from an inertial sensor that is attached to a user or an exercise device on which the user swings and measures a plurality of swings by the user, and the launch direction of each ball, and Generating first analysis information relating to at least one of the bending directions of the ball;
Displaying a first region image in a coordinate system having at least two indices as axes based on the first analysis information;
To run on a computer,
Swing analysis program. Based on a plurality of data relating to the plurality of swings output from an inertial sensor that is attached to a user or an exercise device on which the user swings and measures a plurality of swings by the user, and the launch direction of each ball, and Generating first analysis information relating to at least one of the bending directions of the ball;
Displaying a first region image in a coordinate system having at least two indices as axes based on the first analysis information;
Remembers the program that runs the computer
recoding media.