JP6828265B2 - Display method, swing analysis device, swing analysis system, swing analysis program, and recording medium - Google Patents

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.

Conventionally, in sports such as golf, tennis, and baseball, a means for improving competitiveness by analyzing the trajectory of a swing of a golf club, racket, bat, or the like as an exercise device and improving the trajectory has been known. As an example of such means, for example, Patent Document 1 discloses a technique in which a swing is photographed by a video camera and analysis is performed using the photographed moving image. Further, 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 continuously captured images of the swing. Further, for example, Patent Document 3 discloses a technique for performing swing analysis by detecting the timing of impact by hitting a ball during a swing using a motion sensor.

Japanese Unexamined Patent Publication No. 2015-123206 Japanese Unexamined Patent Publication No. 2014-64125 Japanese Unexamined Patent Publication No. 2014-100341

However, in the techniques described in Patent Document 1 and Patent Document 2, the device for capturing (imaging) a moving image or a continuous image (multi-motion image) becomes large-scale, so that the user can easily measure the swing. There is a problem that it 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), but the user can determine the degree of variation in a plurality of swings. There is a problem that it is difficult to recognize objectively.

The present invention has been made to solve at least a part of the above-mentioned problems, and can be realized as the following forms or application examples.

[Application Example 1] The display method according to this application example is attached to a user or an exercise device to which the user swings, and a plurality of the display methods relating to the plurality of swings output from an inertial sensor that measures a plurality of swings by the user. First analysis information relating to at least one of the launch direction of each ball and the bending method of the ball is generated based on the data of the above, and at least two indexes are used as axes based on the first analysis information. It is characterized in that the first region image is displayed in the coordinate system.

According to the display method according to the present application example, the first analysis information that estimates at least one of the launch direction and the bending direction of the plurality of balls corresponding to the plurality of swings is generated. Then, based on the first analysis information, the first region image is displayed in the coordinate system centered on at least two indexes. By making such a display, the user can use the variation of at least one of the launch directions and the bending directions of the plurality of balls corresponding to the plurality of swings, in other words, the launch directions of the plurality of balls and at least one of the bending directions. It is possible to objectively recognize the current ability (level) of one of the users, including variations.

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

According to this application example, information on the launching direction of the ball and information on how the ball bends based on the head speed and the relative face angle can be easily obtained as image information by the head speed and the club pass. As a result, the user can grasp the swing ability (level) more efficiently.

[Application Example 3] In the display method described in the above 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 see how much the gap with the target is in terms of the launch direction and the bending method of the ball, or the current ability (level) with respect to the target. It is possible to objectively recognize how much the ball is, including variations.

[Application Example 4] In the display method described in the above application example, the first region image includes a plurality of time series region images, and the plurality of time series region images are displayed in the coordinate system. Is preferable.

According to this application example, a plurality of time-series region images included in the first region image are displayed in a coordinate system centered on at least two indexes. By performing such a display, the user can visually recognize the transition of the first analysis information related to the plurality of swings as a plurality of time-series region images. As a result, 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 above application example, it is preferable that the display form is different for each time-series region image.

According to this application example, in the first area image, the display form (for example, color, line type) is displayed differently for each time-series area image, so that the user can perform the ability (for example) related to a plurality of swings. With regard to level), it is possible to easily recognize how the transition has occurred from the past to the present.

[Application Example 6] In the display method described in the application example, the area of the time-series region image is preferably 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 a plurality of data related to a plurality of swings.

[Application Example 7] In the display method described in the above application example, a second area image corresponding to the first area image and a first area image of a plurality of swings of a user other than the user. Is preferably displayed in the coordinate system.

According to this application example, by displaying the second area image corresponding to the first area image of a plurality of swings of a user different from the user displayed in the coordinate system, the user can be another person. It is possible to make a comparison with respect to the second region image related to the swing of the above, and further to make an objective evaluation.

[Application Example 8] In the display method described in the above application example, the coordinate system is divided into a plurality of regions, and the ratio occupied by the second region image is displayed for each of the plurality of divided regions. Is preferable.

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

[Application Example 9] In the display method described in the above application example, the coordinate system is divided into a plurality of regions, and the ratio occupied by the first region image is displayed for each of the plurality of divided regions. Is preferable.

According to this application example, the occupancy rate of the first region image in which at least one of the launch direction and the bending direction of the ball corresponding to each swing, which is included in each region where the coordinate system is divided, is estimated. That is, the occupancy rate of at least one of the ball launching direction and the bending method for each swing is displayed. As a result, the user can objectively confirm the launch direction of the ball in a plurality of swings and the bias regarding the bending method.

[Application Example 10] In the display method described in the above application example, it is preferable to display the flying ball locus from the launch position to the arrival position of the ball in the coordinate system.

According to this application example, the user can confirm the flying ball locus (moving locus) of the ball hit by himself / herself on the image display, which can be easily understood.

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

According to this application example, the user can use at least one of impact, V zone, efficiency, rotation, head speed, hand-up, and down blow as analysis data of an important index showing the ability (level) for multiple swings. Information on the above can be obtained as detailed data. As a result, the user can grasp the ability of the swing more efficiently.

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

According to this application example, since the diagnostic information based on the first region image is displayed, it becomes easy to understand the swing state, and it is possible to take appropriate measures for improving the swing.

[Application Example 13] In the display method described in the above application example, it is preferable to display the practice method based on the diagnostic information.

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

[Application Example 14] The swing analysis device according to the present application example relates to the user or the exercise equipment to which the user swings, and relates to the plurality of swings output from an inertial sensor that measures a plurality of swings by the user. An analysis unit that generates a first analysis information relating to at least one of the launch direction of each ball and the bending method of the ball based on a plurality of data, and at least two indexes based on the first analysis information. It is characterized in that it is provided with a display unit for displaying a first region image in a coordinate system centered on.

According to the swing analysis device according to the present application example, at least one of the launch direction and the bending method of a plurality of balls corresponding to the plurality of swings is estimated based on the first analysis information generated by the analysis unit. The region image of 1 is displayed in a coordinate system centered on at least two indexes. By making such a display, the user can use the variation of at least one of the launch directions and the bending directions of the plurality of balls corresponding to the plurality of swings, in other words, the launch directions of the plurality of balls and at least one of the bending directions. It is possible to objectively recognize the current ability (level) of one of the users, including variations.

[Application Example 15] In the swing analysis device according to the above application example, the two indexes are the head speed and the club path when the first analysis information relates to the launch direction of the ball, and the first one. When the analysis information relates to how the ball bends, it is preferably the head speed and the relative face angle.

According to this application example, information on the launching direction of the ball and information on how the ball bends based on the head speed and the relative face angle can be easily obtained as image information by the head speed and the club pass. As a result, the user can grasp the swing ability (level) more efficiently.

[Application Example 16] In the swing analysis device described in the above 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 see how much the gap with the target is in terms of the launch direction and the bending method of the ball, or the current ability (level) with respect to the target. It is possible to objectively recognize how much the ball is, including variations.

[Application Example 17] In the swing analysis apparatus according to the above application example, the first region image includes a plurality of time series region images, and the plurality of time series region images are displayed in the coordinate system. Is preferable.

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

[Application Example 18] In the swing analysis apparatus described in the above application example, it is preferable that the display form is different for each time-series region image.

According to this application example, in the first area image, the display form (for example, color, line type) is displayed differently for each time-series area image, so that the user can perform the ability (for example) related to a plurality of swings. With regard to level), it is possible to easily recognize how the transition has occurred from the past to the present.

[Application Example 19] In the swing analysis apparatus described in the above application example, the area of the time-series region image is preferably 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 a plurality of data related to a plurality of swings at a glance.

[Application Example 20] In the swing analysis device according to the above application example, a second region image corresponding to the first region image and a first region of a plurality of swings of a user other than the user. It is preferable to display the image in the coordinate system.

According to this application example, by displaying the second area image corresponding to the first area image of a plurality of swings of a user different from the user displayed in the coordinate system, the user can be another person. It is possible to make a comparison with respect to the second region image related to the swing of the above, and further to make an objective evaluation.

[Application Example 21] In the swing analysis apparatus according to the above application example, the coordinate system is divided into a plurality of regions, and the ratio occupied by the second region image is displayed for each of the divided plurality of regions. Is preferable.

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

[Application 22] In the swing analysis apparatus according to the application example, the coordinate system is divided into a plurality of regions, and the ratio occupied by the first region image is displayed for each of the divided plurality of regions. Is preferable.

According to this application example, the occupancy rate of the first region image in which at least one of the launch direction and the bending direction of the ball corresponding to each swing, which is included in each region where the coordinate system is divided, is estimated. That is, the occupancy rate of at least one of the ball launching direction and the bending method for each swing is displayed. As a result, the user can objectively confirm the launch direction of the ball in a plurality of swings and the bias regarding the bending method.

[Application Example 23] In the swing analysis device described in the above application example, it is preferable to display the flying ball locus from the launch position to the arrival position of the ball on the coordinate system.

According to this application example, the user can confirm the flying ball locus (moving locus) of the ball hit by himself / herself on the image display, which can be easily understood.

[Application Example 24] In the swing analysis apparatus described in the above application example, the first analysis information includes information relating to at least one of impact, V zone, efficiency, rotation, head speed, hand-up, and down blow. It is preferable that it is contained.

According to this application example, the user can use at least one of impact, V zone, efficiency, rotation, head speed, hand-up, and down blow as analysis data of an important index showing the ability (level) for multiple swings. Information on the above can be obtained as detailed data. As a result, the user can grasp the swing ability (level) more efficiently.

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

According to this application example, since the diagnostic information based on the first region image is displayed, it becomes easy to understand the swing state, and it is possible to take appropriate measures for improving the swing.

[Application Example 26] In the swing analysis device described in the above application example, it is preferable to display the practice method based on the diagnostic information.

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

[Application Example 27] The swing analysis system according to the present application example is characterized by including the swing analysis device according to any one of the above application examples 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 the first analysis information that estimates at least one of the bending methods is generated, and the first region image is displayed in the coordinate system centered on at least two indexes based on the first analysis information. By displaying such a display on the display unit, the user can launch a plurality of balls corresponding to a plurality of swings, and at least one of the variations in the bending method, in other words, the launching directions of the plurality of balls and the bending. It is possible to objectively recognize 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 28] The swing analysis program according to this application example relates to a user or an exercise device to which the user swings, and relates to the plurality of swings output from an inertial sensor that measures a plurality of swings by the user. Based on a plurality of data, a step of generating a first analysis information relating to at least one of the launch direction of each ball and the bending method of the ball, and at least two indexes based on the first analysis information. It is characterized in that a computer is made to execute a step of displaying a first area image in a coordinate system as an axis.

According to the swing analysis program of this application example, at least the launch direction and the bending method of the plurality of balls corresponding to the plurality of swings are based on the first analysis information generated based on the data relating to the plurality of swings. The first analysis information that estimates one is generated. Then, based on the first analysis information, the first region image is displayed in the coordinate system centered on at least two indexes. By making such a display, the user can use the variation of at least one of the launch directions and the bending directions of the plurality of balls corresponding to the plurality of swings, in other words, the launch directions of the plurality of balls and at least one of the bending directions. It is possible to objectively recognize the current ability (level) of one of the users, including variations.

[Application 29] The recording medium according to this application example is attached to a user or an exercise device to which the user swings, and a plurality of the recording media related to the plurality of swings output from an inertial sensor that measures a plurality of swings by the user. A step of generating a first analysis information relating to at least one of the launch direction of each ball and the bending method of the ball based on the data of the above, and at least two indexes based on the first analysis information. It is characterized in that it stores a step of displaying a first area image in the coordinate system to be specified and a program for causing a computer to execute.

According to the recording medium of this application example, by executing the computer based on the recorded program, a plurality of swings can be created based on the first analysis information generated based on the data related to the plurality of swings. A first analysis information is generated that estimates at least one of the launch directions and the bending directions of the corresponding plurality of balls. Then, based on the first analysis information, the first region image is displayed in the coordinate system centered on at least two indexes. By making such a display, the user can use the variation of at least one of the launch directions and the bending directions of the plurality of balls corresponding to the plurality of swings, in other words, the launch directions of the plurality of balls and at least one of the bending directions. It is possible to objectively recognize the current ability (level) of one of the users, including variations.

The figure which shows the structural example of the motion analysis system of this embodiment. The figure which shows the sensor unit and the swing analysis apparatus. The figure which shows an example of the mounting position and orientation of a sensor unit. The figure which shows the procedure of the operation performed before the user hits a ball. The figure which shows an example of the input screen of the physical information and the golf club information. Explanatory drawing about swing operation. The figure which shows an example of the selection screen of a swing analysis data. The figure which shows an example of the edit screen of the input data which is the object of a swing diagnosis. The figure which shows an example of a swing diagnosis screen. The figure which shows the configuration example of a sensor unit and a swing analysis apparatus. A plan view of the golf club and the sensor unit when the user is at rest as viewed from the negative side of the X-axis. The characteristic diagram which shows an example of the time change of a triaxial angular velocity. The characteristic diagram which shows the time change of the composite value of a triaxial angular velocity. A characteristic diagram showing the time change of the derivative of the composite value. The figure which shows the shaft plane and Hogan plane. A cross-sectional view of the shaft plane cut along the YZ plane as viewed from the negative side of the X-axis. A cross-sectional view of the Hogan plane cut along the YZ plane as viewed from the negative side of the X-axis. The figure for demonstrating the face angle and the club path (incident angle). The figure which shows an example of the time change of the shaft axis rotation angle from the swing start (backswing start) to the impact. The figure which shows an example of the time change of the speed of a grip in a downswing. The figure for demonstrating the definition of the attack angle (first angle) of a striking part in impact. The flowchart which shows an example of the procedure of a swing analysis process (swing analysis method). The figure which shows the configuration example of the swing diagnostic apparatus. The figure which shows an example of the relationship between a shaft plane and a Hogan plane and a plurality of regions. The figure which shows the schematic example of the shaft plane and Hogan plane, and the posture of a user. The figure which shows an example of the V zone score table. The figure which shows an example of the rotation point number table. The figure which shows an example of the impact score table. The figure which shows an example of the down blow score table. The figure which shows an example of the upper blow score table. The figure which shows an example of the swing efficiency score table. The figure which shows an example of the bending score table of a ball. The figure which shows an example of the launch direction score table of a ball. The flowchart which shows an example of the procedure of the processing of the swing analysis apparatus related to the swing diagnosis processing. A floater showing an example of the procedure of swing diagnosis processing (swing diagnosis method). A flowchart showing an example of a processing procedure for calculating points and total points of a plurality of items. As display example 1, the figure which shows the display example of "launch direction". Histogram of other display examples related to "launch direction". As a display example 2, a diagram showing a display example of "bending". Histogram of other display examples related to "bending". The figure explaining the display example which shows the swing locus RS of the club head of a right-handed subject and the swing locus LS of a club head of a left-handed subject. The figure which shows the display example which inverted one of the swing loci which becomes a mirror image shape by the difference of the dominant hand of a subject, and superposed the other as non-inverted. As a display example 3, the figure which shows "launching direction" and "bending". The figure which shows the modification of the display example 3. FIG. As a display example 4, the figure which shows "launching direction" and "bending". As a display example 5, a diagram in which a target area is displayed in the “launch direction”. As a display example 6, a diagram in which a target area is displayed in a “bend”. As a display example 7, the figure which shows "launching direction" and "bending". The figure which shows the modification 1 which concerns on the other display method of the analysis result. The figure which shows the modification 2 which concerns on the other display method of the analysis result. Explanatory drawing of V zone (first virtual surface and second virtual surface). A modified example of the first virtual surface and the second virtual surface. Another modification of the first virtual surface and the second virtual surface. The figure which shows the structural example of the motion analysis system which concerns on the modification. The figure which shows the arrangement example of the sensor unit and the swing analysis apparatus which concerns on a modification. It is a figure which shows an example which configured the motion analysis apparatus with a head-mounted display. It is a figure which shows an example which configured the motion analysis apparatus by a list type terminal.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the embodiments described below do not unreasonably limit the contents of the present invention described in the claims. Moreover, not all of the configurations described below are essential constituent requirements of the present invention.

1. 1. Motion analysis system 1-1. Configuration of Motion Analysis System Hereinafter, analysis of a golf swing will be described as an example of motion analysis. FIG. 1 is a diagram showing a configuration example of the motion analysis system of 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. The 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 includes various information such as a personal computer 20a, a portable device 20b such as a smartphone or a tablet, or a wearable terminal such as a head mounted display (HMD) or a wrist device. It is realized at the terminal (client terminal).

The motion analysis system (swing analysis system) 1 may be configured to include a swing diagnostic device 30 in addition to the swing analysis device 20. However, the swing diagnostic device 30 may be included in the swing analysis device 20. The swing diagnostic device 30 may be realized by a server that processes a request from the swing analysis device 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: Wide Area Network) such as the Internet, or may be a local area network (LAN: Local Area Network). Alternatively, the swing analysis device 20 and the swing diagnosis device 30 may communicate with each other by, for example, short-range wireless communication or wired communication, without going through the network 40.

As shown in FIG. 2, the sensor unit 10 can measure, for example, the acceleration in each axis of the three axes orthogonal to each other and the angular velocity around each axis of the three axes orthogonal to each other, and is capable of measuring motion. It is attached to, for example, a golf club 3 as an instrument.

As shown in FIG. 3, for example, the sensor unit 10 is aligned with three detection axes (x-axis, y-axis, and z-axis) that intersect each other (ideally orthogonal to each other) to form a golf club (of exercise equipment). Example) It 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 (striking target direction). It is attached. Preferably, the sensor unit 10 is attached at a position close to the grip where the impact at the time of hitting is hard to be transmitted and the centrifugal force is hard to be applied at the time of swing. The shaft is a part 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 operation of hitting a golf ball 4, which is an example of a ball, or a swing operation by swinging according to a predetermined procedure. FIG. 4 is a diagram showing a procedure of an operation performed before the user 2 hits a ball in the present embodiment. As shown in FIG. 4, the user 2 first performs an input operation such as physical information of the user 2 and information about the golf club 3 used by the user 2 (golf club information) via the swing analysis device 20 (S1). ..

FIG. 5 is a diagram showing an example of an input screen of physical information and golf club information displayed on the display unit 25 (see FIG. 10) of the swing analysis device 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 inputs golf club information such as club length (shaft length) and count. input. The information included in the physical information is not limited to this, and for example, the physical information may include at least one of the arm length and the leg length in place of the height or together with the height. Similarly, the information included in the golf club information is not limited to this, and 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 (an operation for causing the sensor unit 10 to start measurement) via the swing analysis device 20 (S2). After receiving a notification (for example, a voice notification) instructing the user 2 to take an address posture (basic posture before the start of the swing) from the swing analysis device 20 (S3 is Y), the user 2 is in the longitudinal direction of the shaft of the golf club 3. Takes an address posture so that the ball is perpendicular to the target line (target direction of the hit ball), and stands still for a predetermined time or longer (S4). Next, the user 2 performs a swing operation after receiving a notification (for example, a voice notification) permitting the swing from the swing analysis device 20 (S5 is Y), and hits the golf ball 4 (S6). In addition, this embodiment is not necessarily limited to hitting a ball, and may be applied to swinging, and may have a function of detecting a timing corresponding to hitting a ball.

When the user 2 performs the measurement start operation in step S2 of FIG. 4, the swing analysis device 20 transmits a measurement start command to the sensor unit 10, and the sensor unit 10 receives the measurement start command to perform 3-axis acceleration and 3-axis angular velocity. Start measuring. The sensor unit 10 measures the 3-axis acceleration and the 3-axis angular velocity in a predetermined cycle (for example, 1 ms), and sequentially transmits the measured data to the swing analysis device 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, based on the measurement data of the sensor unit 10, the swing operation in which the user 2 hits the ball using the golf club 3. (Step S6 in FIG. 4) is analyzed.

As shown in FIG. 6, in the swing operation performed by the user 2 in step S6 of FIG. 4, the shaft of the golf club 3 becomes horizontal during the backswing after starting the swing (backswing) from the address state (stationary state). Half-way back, top switching from backswing to downswing, half-way down where the shaft of the golf club 3 becomes horizontal during the downswing, and then the impact (hit) of hitting the golf ball 4 Includes. Then, the swing analysis device 20 generates swing analysis data including information on the time (date and time) when the swing was performed, the identification information and gender of the user 2, the type of the golf club 3, and the analysis result of the swing motion, and the network 40. It is transmitted to the swing diagnostic device 30 via (see FIG. 1).

The swing diagnostic device 30 receives and stores the swing analysis data transmitted by the swing analysis device 20 via the network 40. Therefore, every time the user 2 performs a swing operation 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 communicates with the swing analysis device 20. On the display unit 25 of the above, for example, a swing analysis data selection screen as shown in FIG. 7 is displayed. On this selection screen, for each swing analysis data of the user 2 included in the swing analysis data list stored in the swing diagnostic device 30, the time (date and time), the type of golf club used, and the swing analysis result are displayed. The values of some indicators are included.

At the left end of the selection screen shown in FIG. 7, there is a check box associated with each swing analysis data, and the user 2 checks any one of the check boxes via the operation of the swing analysis device 20, and then checks the check box. Press the OK button at the bottom of this selection screen. As a result, the swing analysis device 20 communicates with the swing diagnostic device 30, and the display unit 25 of the swing analysis device 20 displays the swing analysis data associated with the check box checked on the selection screen of FIG. 7, for example, FIG. The edit screen of the input data to be the target of the swing diagnosis is displayed as shown in 8.

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

On the input data editing screen shown in FIG. 8, the input data consisting of gender, golf club type, 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 the input data or after editing the input data via the operation unit 23 (see FIG. 10) of the swing analysis device 20. As a result, the swing analysis device 20 transmits the input data when the diagnosis start button is pressed to the swing diagnosis device 30.

The swing diagnostic apparatus 30 receives the input data and calculates the level (first analysis information) of a plurality of items using the input data. For example, the swing diagnostic 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, for example, the level may be calculated on a scale of 5 points. The meanings and calculation methods of these five items will be described later. Further, the swing diagnostic device 30 may also calculate the total score of the swing from each level of these five items. Then, the swing diagnostic 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, for example, "1, 2, 3, ...", "A, B, C, ...", "○, △, ×, ...". It may be expressed in points. The level (first analysis information) by the swing diagnostic device 30 is 5 of "V zone", "rotation", "impact", "down blow" or "upper blow", and "swing efficiency (efficiency)". It suffices to include information relating to at least one of the seven items including "head speed" and "hand-up" in one item.

The swing analysis device 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 information on input data on the left side. The information of this input data is the 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 (calculation of the level and total score of five items). It is the information of the data used for. Further, the swing diagnosis screen shown in FIG. 9 includes a radar chart showing points as levels of five items near the center, and information on the total points on the right side.

The user 2 can grasp the level and the total score of a plurality of items as the diagnosis result for the input data on the left side by 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 grasps the strengths and weaknesses of his / her swing from the swing diagnosis screen shown in FIG. be able to. On the other hand, on the input data editing screen shown in FIG. 8, the user 2 edits the input data and presses the diagnosis start button, for example, which index should be improved and how much in order to overcome the weakness. Can be grasped. In the following, an example of expressing the "level" of a plurality of items by "score" will be described, but "1, 2, 3, ...", "A, B, C, ...", " Needless to say, it can be easily replaced with an example expressed by "○, △, ×, ...".

Further, the swing analysis device 20 receives information on the level and total score of a plurality of items related to the plurality of swings, and based on the plurality of information (data), the launch direction of each ball and the bending of the ball. A first analysis information relating to at least one of the two is generated, and based on the first analysis information, a plurality of time-series region images 81A, 82A, 83A, 81B, 82B shown in FIGS. 36A to 45 and described later. First region images 80A, 80B including 83B are generated. Then, the swing analysis device 20 displays a plurality of time-series region images 81A, 82A, 83A, 81B, 82B, and 83B together in a coordinate system centered on at least two indexes.

By displaying such a time-series area image, the user 2 can launch a plurality of balls corresponding to a plurality of swings, and at least one of the variations in the bending method, in other words, the launch directions of the plurality of balls, and It is possible to visually and objectively visually confirm the current ability (level) of the user related to at least one of the bending methods, including variations.

1-2. Configuration of Sensor Unit and Swing Analysis Device FIG. 10 is a diagram showing 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 deleted or changed, or other components are added as appropriate.

The acceleration sensor 12 measures the acceleration generated in each of the three axial directions intersecting (ideally orthogonal to each other), and outputs a digital signal (acceleration data) according 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 that intersect each other (ideally orthogonal to each other), and outputs a digital signal (angular velocity data) according 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, stores the data in a storage unit (not shown), and stores the stored measurement data (acceleration data and angular velocity data). The time information is attached to the data to generate packet data according to the communication format, and the data is output to the communication unit 18.

The acceleration sensor 12 and the angular velocity sensor 14 are sensors so that their three axes coincide with the three axes (x-axis, y-axis, and z-axis) of the Cartesian coordinate system (sensor coordinate system) defined for the sensor unit 10. Ideally, it is mounted on the unit 10, but in reality there is an error in the mounting angle. Therefore, the signal processing unit 16 performs a process of converting the acceleration data and the angular velocity data into the data of the xyz coordinate system by using the correction parameters calculated in advance according to the mounting angle error.

Further, the signal processing unit 16 may perform temperature correction processing for the acceleration sensor 12 and the angular velocity sensor 14. Alternatively, the acceleration sensor 12 and the angular velocity sensor 14 may incorporate a temperature compensation function.

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

The communication unit 18 is a process of transmitting packet data received from the signal processing unit 16 to the swing analysis device 20, and a process of receiving various control commands such as a measurement start command from the swing analysis device 20 and sending them to the signal processing unit 16. And so on. The signal processing unit 16 performs various processes according to the control command.

As shown in FIG. 10, in the present embodiment, the swing analysis device 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 done. However, the swing analysis device 20 may have a configuration in which some of these components are 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 sends it to the processing unit 21, and also performs a process of transmitting a control command from the processing unit 21 to the sensor unit 10.

The operation unit 23 acquires data according to the operation of the user 2 and performs a process of sending the data to the processing unit 21. The operation unit 23 may be, for example, a touch panel display, buttons, keys, a microphone, or the like.

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

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

Further, in the present embodiment, the storage unit 24 stores golf club information 242, physical information 244, sensor mounting position information 246, and swing analysis data 248. For example, the user 2 operates the operation unit 23, and from the input screen of FIG. 5, the specification information of the golf club 3 to be used (for example, the length of the shaft, the position of the center of gravity, the lie angle, the face angle, the loft angle, etc.) Information) may be input, and the input specification information may be used as golf club information 242. Alternatively, the user 2 inputs the model number of the golf club 3 (or selects it 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 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 used as 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 input the information of the input distance. The sensor mounting position information 246 may be used. Alternatively, assuming that the sensor unit 10 is mounted at a predetermined predetermined position (for example, a distance of 20 cm from the grip end), the information on the predetermined position may be stored in advance as the sensor mounting position information 246.

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

Further, the storage unit 24 is used as a work area of the processing unit 21, and temporarily stores the data acquired by the operation unit 23, the calculation result executed by the processing unit 21 according to various programs, and the like. Further, the storage unit 24 may store data that needs to be stored for a long period of time among the data generated by the processing of the processing unit 21.

The display unit 25 displays the processing result of the processing unit 21 as characters, graphs, tables, animations, and other images. The display unit 25 may be, for example, a CRT, an LCD, a touch panel type display, a head mounted display (HMD: Head Mounted Display), or the like. The functions of the operation unit 23 and the display unit 25 may be realized by one touch panel type display.

For example, as shown in FIG. 36A described later, the display unit 25 has a plurality of time-series region images 81A, 82A, and 83A included in the first region image 80A as axes of at least two indexes. Display together in the coordinate system. Further, as shown in FIG. 36A, the display unit 25 together displays the second area image 90A corresponding to the first area image 80A of a plurality of swings by a user other than the user 2. it's shown. Since a detailed description of the display example will be described later, the description here will be omitted.

As a function of the operation unit 23 in the display unit 25, the display content can be switched or enlarged / reduced by touching the display unit 25 (screen touch) or the like. In this way, by designating the display content to the operation unit 23 included in the display unit 25, the instruction can be directly given, and the instruction can be reliably and easily given.

The sound output unit 26 outputs the processing result (analysis information) of the processing unit 21 in order to present it as sound information such as voice 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 diagnostic apparatus 30 via the network 40. For example, after the swing analysis process is completed, the communication unit 27 receives the swing analysis data 248 from the processing unit 21 and transmits the swing analysis data 248 to the communication unit 32 of the swing diagnostic device 30. Further, for example, the communication unit 27 receives the information necessary for displaying the selection screen of FIG. 7 from the communication unit 32 of the swing diagnostic device 30 and sends it to the processing unit 21, and the communication unit 27 receives the selection information on the selection screen of FIG. The process of receiving from the processing unit 21 and transmitting it to the communication unit 32 of the swing diagnostic apparatus 30 is performed. Further, for example, the communication unit 27 performs a process of receiving information necessary for displaying the input data editing screen of FIG. 8 from the communication unit 32 of the swing diagnostic apparatus 30 and sending it to the processing unit 21. Further, for example, the communication unit 27 receives the input data when the diagnosis start button on the input data edit screen of FIG. 8 is pressed from the processing unit 21 and transmits the input data to the communication unit 32 of the swing diagnosis device 30. .. Further, for example, the communication unit 27 provides information necessary for displaying the swing diagnosis screen of FIG. 9 (information on the diagnosis result based on the input data (scores and total points of a plurality of items)) in the communication unit 32 of the swing diagnosis device 30. Is received from and sent to the processing unit 21.

The processing unit 21 performs a process of transmitting a control command to the sensor unit 10 via the communication unit 22 and various calculation processes 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 device 30 via the communication unit 27 according to various programs. Further, the processing unit 21 transmits various information to the swing diagnostic device 30 via the communication unit 27 according to various programs, and based on the information received from the swing diagnostic device 30, display data of the first analysis information. The first region image data corresponding to the first region image 80A (see, for example, FIG. 36A) can be formed and output. In addition, the processing unit 21 performs various other control processes.

By executing the swing analysis program 240, the processing unit 21 executes the data acquisition unit 210, the swing analysis unit 211 as the analysis unit, the image data generation unit 212, the storage processing unit 213, the display processing unit 214, and the sound output processing unit 215. Functions 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 execute the data acquisition unit 210, the swing analysis unit 211 as the analysis unit, the image data generation unit 212, the storage processing unit 213, and the display processing unit. It functions as 214 and the sound output processing unit 215, and performs processing (swing analysis processing) for analyzing 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 sends the data acquisition unit 210 to the storage processing unit 213. Further, the data acquisition unit 210 receives information necessary for displaying various screens (screens of FIG. 7, FIG. 8, FIG. 9, etc.) received from the swing diagnostic device 30 by the communication unit 27, and receives an image data generation unit. The process of sending to 212 is performed.

The storage processing unit 213 performs read / write processing of various programs and various data on the storage unit 24. For example, the storage processing unit 213 stores the time information received from the data acquisition unit 210 and the measurement data in the storage unit 24 in association with each other, and various information calculated by the swing analysis unit 211, the swing analysis data 248, and the like. A process of storing in the storage unit 24 is performed.

The swing analysis unit 211 as an analysis unit uses the measurement data (measurement data stored in the storage unit 24) output by the sensor unit 10 and the data from the operation unit 23 to swing the user 2 (plurality of swing operations). Swing) is analyzed, and 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 gender of the user 2, the type of the golf club 3, and the information of the analysis result of the swing motion. Perform the process of generating. In particular, in the present embodiment, the swing analysis unit 211 calculates the value of each index of the swing as at least a part of the information of the analysis result of the swing motion. 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 surface as an index of the swing. For example, at least one virtual surface includes a shaft plane SP (first virtual surface) and a Hogan plane HP (second virtual surface) forming a predetermined angle with the shaft plane SP, which will be described later, and the swing analysis unit 211 includes. , "Shaft plane SP" and "Hogan plane HP" may be calculated as this index.

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 an index of the swing. For example, the first timing is a halfway back in which the longitudinal direction of the golf club 3 is along the horizontal direction during the backswing, and the swing analysis unit 211 uses the "halfway back" described later as an index of this. 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 an index of the swing. For example, the second timing is a half-way down in which the longitudinal direction of the golf club 3 is along the horizontal direction during the downswing, and the swing analysis unit 211 uses the "half-way down" 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 an index based on the incident angle of the head 3a of the golf club 3 at the impact (at the time of hitting the ball) as an index of the swing. For example, the swing analysis unit 211 may calculate the “club path (incident angle) ψ” described later as this index.

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

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

Further, the swing analysis unit 211 uses the longitudinal direction of the shaft as the rotation axis as an index of the swing, and rotates the rotation axis of the shaft of the golf club 3 at a predetermined timing from the start of the backswing to the impact (at the time of hitting the ball). An index based on the rotation angle (hereinafter referred to as a long axis rotation) may be calculated. The rotation angle of the golf club 3 around the long axis may be the angle at which the golf club 3 rotates about the long axis from the reference timing to the predetermined timing. The reference timing may be the start of the backswing or 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 the “shaft axis rotation angle θ _top at the time of top” described later as this index.

Further, the swing analysis unit 211 may calculate an index based on the deceleration amount of the grip of the golf club 3 in the downswing as the index of the swing. For example, the swing analyzer 211, as the index may be calculated to "grip deceleration rate R _V" later. It should be noted that the "grip deceleration rate R _V" is also referred to as "natural Ann cock" or "natural Ann cock rate".

Further, 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 an index of the swing. For example, the swing analysis unit 211 may calculate the “grip deceleration time rate _RT ” described later as this 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 an index of the swing. For example, the swing analysis unit 211 calculates, as an index, the timing of the natural uncock (“natural release timing”), which is the timing of the movement in which the grip side of the golf club 3 is decelerated and the head 3a of the golf club 3 is accelerated. You may. The timing of the natural uncock is an index indicating the timing of switching 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 (see FIGS. 15 and 17) sandwiched between the shaft plane SP (first virtual plane) and the Hogan plane HP (second virtual plane), which is called a “V zone”, as a swing index. ), The index related to the position of the head 3a at the time of halfway back (HWB) and the index related to the position of the head 3a at the time of halfway down (HWD) may be calculated.

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

Further, 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 an index of the swing.

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

The image data generation unit 212 performs a process of 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 shown in FIG. 7, the input data editing screen shown in FIG. 8, and the swing diagnosis screen shown in FIG. 9 based on various information received by the data acquisition unit 210. Generate image data to be used.

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

The display processing unit 214 performs a process of displaying various images (including characters, symbols, and the like in addition to the images corresponding to the image data generated by the image data generation unit 212) on the display unit 25. For example, the display processing unit 214 displays the selection screen shown in FIG. 7, the input data editing screen shown in FIG. 8, and the swing shown in FIG. 9 on the display unit 25 based on the image data generated by the image data generation unit 212. Display the diagnostic screen, etc. Further, for example, the image data generation unit 212 may display an image, characters, or the like for notifying the user 2 of the permission to start the swing on the display unit 25 in step S5 of FIG. Further, for example, the display processing unit 214 automatically or in response to the input operation of the user 2 after the swing operation of the user 2 is completed, texts such as characters and symbols indicating the analysis result by the swing analysis unit 211. The 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, characters, and the like on the display unit of the sensor unit 10. It may be displayed.

Further, the display processing unit 214, together with the first area images 80A and 80B of the user 2 displayed as images on the display unit 25 by the instruction of the user 2, the second area images 90A of other users. , 90B may be displayed.

Further, the display processing unit 214, together with the first area images 80A and 80B and the second area images 90A and 90B displayed as images on the display unit 25, for example, regarding the launch direction of the ball and the bending of the ball. You can display the comments of. 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. As described above, the comment is preferably advice information for the analysis result.

In this way, by displaying the diagnostic information and the practice method based on the diagnostic information as comments, the user 2 can easily understand the swing state and take appropriate measures for improving the swing. You can do it and you can practice efficiently.

The sound output processing unit 215 performs a process of causing the sound output unit 26 to output various sounds (including voice and buzzer sound). For example, the sound output processing unit 215 may output a sound from the sound output unit 26 for notifying the user 2 of the permission to start the swing in step S5 of FIG. Further, for example, the sound output processing unit 215 automatically or in response to the input operation of the user 2 after the swing operation of the user 2 is completed, produces a sound or a voice indicating the analysis result by the swing analysis unit 211. It may be output from the output unit 26. Alternatively, the sensor unit 10 is provided with a sound output unit, and the sound output processing unit 215 transmits various sound data and voice data to the sensor unit 10 via the communication unit 22, and the sound output unit of the sensor unit 10 May output various sounds and sounds.

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 set as 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 with the axis and the vertical upward direction (the direction opposite to the direction of gravity acceleration) as the Z axis. Then, the swing analysis unit 211 uses the measurement data (acceleration data and angular velocity data) of the sensor unit 10 in order to calculate each index value, and the sensor unit from the time of addressing in the XYZ coordinate system (global coordinate system). The positions and postures of the 10 are calculated in chronological order. Further, the swing analysis unit 211 uses the measurement data (acceleration data or angular velocity data) of the sensor unit 10 to detect the swing start, top, and impact timings shown in FIG. Then, the swing analysis unit 211 uses each index of the swing (for example, V shown in the radar chart of FIG. 9) by using the time series data of the position and the posture of the sensor unit 10 and the timings of the swing start, the top and the impact. The value of zone, efficiency (swing efficiency), rotation, impact and down blow (or upper blow), etc.) is calculated, and swing analysis data 248 is generated.

1-3-1. Calculation of position and posture of sensor unit 10 When user 2 performs the operation of step S4 in FIG. 4, first, the swing analysis unit 211 continuously sets a threshold value for the amount of change in the acceleration data measured by the acceleration sensor 12 for a predetermined time. If it does not exceed, it is determined that the user 2 is stationary in the address posture. Next, the swing analysis unit 211 calculates the 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 the offset amount from the measurement data to correct the bias, and uses the bias-corrected measurement data to make a sensor during the swing operation of the user 2 (during the operation of step S6 in FIG. 4). Calculate the position and orientation of the unit 10.

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 when the user 2 is stationary (at the time of addressing) as viewed from the negative side of the X-axis. The position 61 of the head 3a of the golf club 3 is the origin O (0, 0, 0), and the coordinates of the position 62 of the grip end are (0, G _Y , G _Z ). Since the user 2 performs the operation of step S4 of FIG. 4, the position 62 of the grip end 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 formed by the horizontal plane (XY plane) α is expressed by the equation (1).

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

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

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

Further, the swing analysis unit 211 calculates the posture (initial posture) of the sensor unit 10 at rest (at the time of addressing) of the user 2 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 of FIG. 4, at the time of the address of the user 2 (at rest), the x-axis of the sensor unit 10 coincides with the X-axis of the XYZ coordinate system, and the sensor unit 10 Since the y-axis of the above is on the YZ plane, the swing analysis unit 211 can specify 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 angular velocity sensor 14 thereafter, and calculates the change in the posture of the sensor unit 10 from the initial posture in time series. The posture of the sensor unit 10 can be expressed by, for example, an angle of rotation (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 the bias correction of the measurement data, or the acceleration sensor 12 and the angular velocity sensor 14 incorporate the bias correction function. You may be. In these cases, the bias correction of the measurement data by the swing analysis unit 211 becomes unnecessary.

1-3-2. Swing start, top and impact timing detection The swing analysis unit 211 first detects the timing (impact timing) of the user 2 hitting 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 the impact timing (time) based on the composite value.

Specifically, first, the swing analysis unit 211 calculates the value of the combined value n ₀ (t) of the angular velocity at each time t using the angular velocity data (bias-corrected angular velocity data for 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 sets the combined value n ₀ (t) of the angular velocity by the following equation (2). calculate.

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

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

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

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

FIG. 14 is a graph showing the differential dn (t) calculated from the composite value n (t) of the triaxial angular velocities of FIG. 13 according to the equation (4). In FIG. 14, the horizontal axis is time (msec), and the vertical axis is the differential value of the combined value of the three-axis angular velocity. In addition, although the horizontal axis is displayed in 0 to 5 seconds in FIGS. 12 and 13, in FIG. 14, the horizontal axis is displayed 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 time ahead of the time when the value of the derivative dn (t) of the composite value becomes the maximum and the time when the value becomes the minimum as the impact time t _impact (impact timing) ( See FIG. 14). In a normal golf swing, it is considered that the swing speed is maximized at the moment of impact. Then, since it is considered that the value of the combined value of the angular velocity also changes according to the swing speed, the swing analysis unit 211 determines the timing at which the differential value of the combined value of the angular velocity becomes the maximum or the minimum in the series of swing operations (that is,). The timing at which the differential value of the combined value of the angular velocity becomes the maximum positive value or the minimum negative value) can be regarded as the timing of impact. 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 velocity becomes the maximum and the timing at which the differential value becomes the minimum occur in pairs, but the timing after that is the moment of impact. 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 (see FIG. 13). ). In a normal golf swing, it is considered that after the swing starts, the movement stops once at the top, and then the swing speed gradually increases to reach an impact. Therefore, the swing analysis unit 211 can grasp the timing at which the combined value of the angular velocities approaches 0 and becomes the 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 value before and after the _top time t _top as the top section, and sets the composite value n (t) before the start time of the top section. The last time that is equal to or less than a predetermined threshold value is detected as the swing start (backswing start) time t _start (see FIG. 13). In a normal golf swing, it is unlikely that the swing motion starts from a stationary state and stops at the top. Therefore, the swing analysis unit 211 can grasp the last timing at which the combined value of the angular velocities becomes equal to or less than a predetermined threshold value before the top section as the start timing of the swing operation. The swing analysis unit 211 may detect the time of the minimum point where the composite value n (t) approaches 0 (zero) before the _top time t _top as the swing start time t _start .

The swing analysis unit 211 can also detect the swing start, top, and impact timings by using the three-axis acceleration data.

1-3-3. Calculation of Shaft Plane and Hogan Plane The shaft plane is the first 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 time of addressing (resting state) before the start of the swing of the user 2. It is a virtual surface. In addition, the Hogan plane is a virtual line and a target line (of a hit ball) connecting the vicinity of the shoulder of the user 2 (shoulder, base of neck, etc.) and the head 3a (or golf ball 4) of the golf club at the address of the user 2. It is the second virtual surface specified by (target direction).

FIG. 15 is a diagram showing a shaft plane and a Hogan plane. In FIG. 15, the X-axis, Y-axis, and Z-axis of the XYZ coordinate system (global coordinate system) are also shown.

As shown in FIG. 15, in the present embodiment, the first line segment 51 as the first axis along the target direction of the hit ball and the second line segment 51 as the second axis along the longitudinal direction of the shaft of the golf club 3. A virtual plane including a minute 52 and having U1, U2, S1, and S2 as four vertices is defined as a shaft plane SP (first virtual plane). In the present embodiment, the position 61 of the head 3a of the golf club 3 at the time of address is set to the origin O (0,0,0) of the XYZ coordinate system, and the second line segment 52 is the position 61 of the head 3a of the golf club 3 ( It is a line segment connecting the origin O) and the position 62 of the grip end. 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 the midpoint. Since the shaft of the golf club 3 becomes perpendicular to the target line (X-axis) when the user 2 performs the operation of step S4 of FIG. 4 at the time of addressing, the first line segment 51 is the length of the shaft of the golf club 3. 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 each 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 inclination angle α and the shaft length L ₁ included in the golf club information 242 to coordinate the position 62 of the grip end of the golf club 3 (0, G). _Y , G _Z ) is calculated. As shown in FIG. 11, the swing analysis unit 211 can calculate G _Y and G _Z by the equations (5) and (6) using the shaft length L ₁ and the inclination angle α, respectively. ..

Next, the swing analysis unit 211 multiplies the coordinates (0, G _Y , G _Z ) of the position 62 of the grip end of the golf club 3 by the scale factor S, and the midpoint between the apex S1 and the apex S2 of the shaft plane SP. Calculate the coordinates of S3 (0, _SY , S _Z ). That is, the swing analysis unit 211 calculates _SY and S _Z by the equations (7) and (8), respectively.

FIG. 16 is a cross-sectional view of the shaft plane SP of FIG. 15 cut 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 apex S1 and the apex S2 and the origin O (the width in the direction orthogonal to the X axis of the shaft plane SP) is the second line segment 52. It is S times the length L ₁ . This scale factor S is set to a value such that the trajectory of the golf club 3 during the swing operation of the user 2 fits in the shaft plane SP. For example, assuming that the arm length 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 which is} the sum of the shaft length L ₁ and the arm length L 2. The scale factor S may be set as in Eq. (9) so as to 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 expressed by a correlation equation such as equation (10) when the user 2 is a male, for example, 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 arm length L ₂ of the user by the equation (10) or the equation (11) using the height L ₀ and the gender of the user 2 included in the physical information 244. Can be done.

Next, the swing analysis unit 211 uses the coordinates (0, _SY , S _Z ) of the midpoint S3 and the width (length of the first line segment 51) UL of the shaft plane SP in the X-axis direction, and the shaft plane. SP coordinates of the vertices U1 of (-UL / 2,0,0), the coordinates of the vertices U2 (UL / 2,0,0), the coordinates of the vertex _{S1 (-UL / 2, S Y} , S Z), S2 of Calculate the coordinates (UL / 2, _SY , S _Z ). 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 operation of the user 2 fits in the shaft plane SP. For example, even if the width UL in the X-axis direction is set to be the same as 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.

Further, 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 The virtual plane as one vertex is the Hogan plane HP (second virtual plane). The third line segment 53 is a line segment connecting a predetermined position 63 near the line segment connecting both shoulders of the user 2 and the position 61 of the head 3a of the golf club 3. However, the third line segment 53 may be a line segment connecting the predetermined position 63 and the position of the golf ball 4. The swing analysis unit 211 calculates the coordinates of each 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 uses the coordinates (0, G _Y , G _Z ) of the grip end position 62 of the golf club 3 at the time of addressing (resting) and the user 2 based on the physical information 244. with the length of the arm L _2, and it estimates the predetermined position 63, the coordinates _{(a X, a Y, a} Z) is calculated.

FIG. 17 is a cross-sectional view of the Hogan plane HP of FIG. 15 cut along the YZ plane and 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 set as the predetermined position 63, and the predetermined position 63 exists on the YZ plane. Therefore, the X-coordinate A _X a predetermined position 63 is zero. Then, as shown in FIG. 17, the swing analysis unit 211 moves the position 62 of the grip end of the golf club 3 in the positive direction of the Z axis by the length L ₂ of the arm of the user 2 at the predetermined position 63. Presumed to be. Therefore, the swing analysis unit 211 sets the Y coordinate A _Y at the predetermined position 63 to the same value as the Y coordinate G _{Y at} the position 62 of the grip end. Further, the swing analyzer 211, a Z-coordinate A _Z of predetermined positions 63, as in Equation (12), as _the sum of _the Z-coordinate G _Z and arm of the user 2 the length L ₂ of the position 62 of the grip end 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 the coordinates (0, 0,) of the midpoint H3 between the apex H1 and the apex H2 of the Hogan plane HP. _HY , H _Z ) is calculated. That is, the swing analysis unit 211 calculates _HY and H _Z by the equations (13) and (14), respectively.

As shown in FIG. 17, the length of the line segment connecting the midpoint H3 of the apex H1 and the apex H2 and the origin O (the width in the direction orthogonal to the X axis of the Hogan plane HP) is the third line segment 53. It is 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 operation of the user 2 fits in 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 coincides with 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 _It is twice the sum of ₁ and the arm length L ₂ of user 2. Therefore, the swing analysis unit 211 can calculate the scale factor H by the equation (15).

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

Then, the processing unit 21 uses the UL (length of the first segment 51) the coordinates _{(0, H Y, H Z} ) of the midpoint H3 and Hogan plane HP in the X-axis direction of the width, Hogan plane HP 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 calculate the coordinates of the vertices U1 and U2 of the Hogan plane HP again.

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.

The area sandwiched between the shaft plane SP (first virtual plane) and the Hogan plane HP (second virtual plane) is called the "V zone", which is the position of the head 3a of the golf club 3 during the backswing or downswing. From the relationship with the V zone, the trajectory (ball muscle) of the hit ball can be estimated to some extent. For example, when the head 3a of the golf club 3 exists in a space lower than the V zone at a predetermined timing during the backswing or the downswing, it is likely to be a hook-type hit ball. Further, when the head 3a of the golf club 3 exists in a space higher than the V zone at a predetermined timing during the backswing or the downswing, it is likely to be a slice-type hit ball. In the present embodiment, as apparent from FIG. 17, the angle β between the shaft plane SP and Hogan plane HP, depending on the length L ₂ of the arm length L ₁ and user 2 of the shaft of the golf club 3 It is determined. That is, since the angle β is determined not by a fixed value but by the type of the golf club 3 and the body of the user 2, the shaft plane SP and the Hogan plane HP (V zone), which are more appropriate as indexes for diagnosing the swing of the user 2, are used. Is calculated.

1-3-4. Calculation of head 3a position during halfway back and halfway down The head 3a position during halfway back is the position of the head 3a at the moment of halfway back, immediately before halfway back or immediately after halfway back. The position of the head 3a 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 uses the position and orientation of the head 3a and the grip end position at each time t. To calculate.

Specifically, the swing analysis unit 211 positions the head 3a at each time t at a position separated from the position of the sensor unit 10 by a distance L _{SH in} the positive direction of the y-axis specified by the posture of the sensor unit 10. As the position, the coordinates of the position of the head 3a are calculated. As described above, the distance L _SH is the distance between the sensor unit 10 and the head 3a. Further, at each time t, the swing analysis unit 211 sets a position separated from the position of the sensor unit 10 by a distance L _{SG in} the negative direction of the y-axis specified by the posture of the sensor unit 10 as the grip end position. Calculate the coordinates of the position of the grip end. 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 by 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 the difference ΔZ between the Z coordinate of the position of the head 3a and the Z coordinate of the position of the grip end 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 the time t _{HWB in} 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 the time t _{HWD in} 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 the time t _{HWB as} the position of the head 3a at the time of halfway back, and sets the position of the head 3a at the time t _{HWD as} the position of the head 3a at the time of halfway down.

1-3-5. Calculation of Head Speed The head speed is the magnitude of the speed of the head 3a at the time of impact (at the moment of impact, immediately before 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 the trajectory of the head 3a of the golf club 3 at impact. It is an index based on.

FIG. 18 is a diagram for explaining a face angle and a club path (incident angle). FIG. 18 shows a 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, 74 is the face surface (striking surface) of the golf club 3, and 75 is the hitting point. Reference numeral 70 denotes a target line indicating the target direction of the hit ball, and 71 is a plane orthogonal to the target line 70. Further, 76 is a curve representing the locus of the head 3a 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, the 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 3a in the XY plane passes the hitting point 75) 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) from the posture of the sensor unit 10 at the time t _impact of the _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 direction of the straight line to 0 as the direction of the straight line 73.

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

The face angle φ is also called 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 of the head 3a on the hitting point 75. On the other hand, the angle η formed by the straight line 73 and the tangent line 72 represents the inclination of the face surface 74 with respect to the direction of incidence of the head 3a on the hitting point 75, and is therefore called a relative face angle. 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 Shaft Rotation Angle at Top The shaft shaft rotation angle θ _{top at top} is the angle (relative rotation angle) at which the golf club 3 rotates around the shaft axis from the reference timing to the top timing. The reference timing is, for example, the start of the backswing or the address. In the present embodiment, when the user 2 is right-handed, the tightening direction of the right-hand screw with the tip facing the head 3a side of the golf club 3 (clockwise when the head 3a side is viewed from the grip end side) is set. The shaft axis rotation angle θ _{top is in} the positive direction. On the contrary, when the user 2 is left-handed, the shaft is tightened in the left-handed screw tightening direction (counterclockwise when the head 3a side is viewed from the grip end side) with the tip facing the head 3a side of the golf club 3. The axis rotation angle θ _{top is in} the positive direction.

FIG. 19 is a diagram showing an example of a time change of the shaft axis rotation angle from the start of the swing (start of the backswing) to the impact. In FIG. 19, the horizontal axis is time (s) and the vertical axis is the shaft axis rotation angle (deg). FIG. 19 shows the shaft axis rotation angle θ _top at the time of the top with the start of the swing (at the start of the backswing) as 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 shaft of the golf club 3 (the 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 (at the time of backswing start) or the address time to the top time t _top (at the top time). Then, the shaft axis rotation angle θ _top is calculated.

1-3-8. Calculation of grip deceleration rate and grip deceleration time rate Grip deceleration rate is an index based on the amount of deceleration of the grip, and is the speed of the grip when the grip starts to decelerate during the downswing and the speed of the grip at the time of impact. The ratio. The grip deceleration time rate is an index based on the deceleration period of the grip, and is the ratio of the time from the start of deceleration of the grip to the impact during the downswing to the time of the downswing. The speed of the grip 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. You may.

FIG. 20 is a diagram showing an example of a time change of the grip speed in the downswing. In FIG. 20, the horizontal axis is time (s) and the vertical axis is grip speed (m / s). In FIG. 20, assuming that the grip speed (maximum grip speed) when the grip starts decelerating is V ₁ and the grip speed at impact is V ₂ , the grip deceleration rate R _V (unit:%) is It is expressed by the following equation (16).

Further, in FIG. 20, assuming that the time from the top to the start of deceleration of the grip is T ₁ and the time from the start of deceleration of the grip to the impact is T ₂ , the grip deceleration time rate _RT (unit:%). Is expressed by the following equation (17).

For example, assuming that the sensor unit 10 is attached near the portion where the user 2 grips the golf club 3, the speed of the sensor unit 10 may be regarded as the speed of the grip. Therefore, first, the swing analysis unit 211 has 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 time immediately before that. The speed of the sensor unit 10 at each time t is calculated from the difference from the coordinates of the position of.

Next, the swing analysis unit 211 calculates the magnitude of the velocity of the sensor unit 10 at each time t, and sets the maximum value to V ₁ and the magnitude of the velocity at the _impact time t _impact to V ₂ . Further, the swing analysis unit 211 specifies the time t _{vmax at} which the magnitude of the velocity of the sensor unit 10 reaches 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 R _T , respectively, by the equations (16) and (17), respectively.

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

1-3-9. Calculation of Attack Angle and Definition of Codes for 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, the XYZ coordinate system has the X-axis as the target line indicating the striking target direction, the Y-axis as the axis on the horizontal plane perpendicular to the X-axis, and the Z-axis as the vertically upward direction (opposite to the direction of gravity acceleration). By definition, the X-axis, Y-axis, and Z-axis are shown in FIG. The target line refers to, for example, the target direction in which the ball is shot straight. In FIG. 21, the point R is the hitting point where the head 3a of the golf club 3 hits the golf ball 4, the curve L1 is a part of the trajectory of the head 3a of the golf club 3 on the XZ plane at the time of swing, and the straight line L2. Is a tangent to the curve L1 at the hitting point R in the XZ plane. As shown in FIG. 21, the attack angle is defined as the angle δ of the straight line L2 with respect to the XY plane (horizontal plane) S _xy . Further, in FIG. 21, right direction toward the paper surface along the parallel X-axis in the XY plane (horizontal plane) S _xy is a striking target direction. Therefore, the attack angle δ is the direction of the tangent line (straight line L2) in contact with the swing locus (curve L1) of the head (striking portion) 3a of the golf club (exercise equipment) 3, the striking target direction along the X axis, and the like. It can be said that the angle between the two.

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 straight line 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 (rightward toward the paper surface) of the X axis with the Y axis as the rotation axis. (The clockwise direction in FIG. 15) is defined as the first code, and the code opposite to the first code is defined as 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 on the hitting point R in the diagonally lower right direction toward the paper surface. The attack angle δ = 0 ° at the time of level blow in which the head 3a is horizontally incident on the hitting point R along the X axis. The attack angle δ> 0 ° when the head 3a is incident on the upper right direction diagonally toward the paper surface with respect to the hitting point R.

On the other hand, the sign of the face angle (second angle) φ shown in FIG. 18 is the direction in which + Y on the Y axis rotates in the + X direction on the X axis with the Z axis as the rotation axis (clockwise in FIG. 18 toward the paper surface). (Rotating direction) is the third code, and the code opposite to the third code is 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 the head 3a reaches an impact in the closed state in the inside out. When the face surface 74 of the head 3b is squarely incident perpendicular to the target line, the face angle φ = 0 °. When the head 3a is open and the impact is reached in the outside-in, the face angle φ> 0 °.

The swing analysis unit 211 shown in FIG. 10 may include a first angle calculation unit for calculating the attack angle (first angle) δ and a second angle calculation unit for calculating the 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, and the first and second angles δ, from the relationship shown in FIGS. 21 and 18. Calculate φ.

1-3-10. Procedure of swing analysis processing (swing analysis method) FIG. 22 is a flowchart showing an example of a 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, for example, to execute the swing analysis process according to the procedure shown in the flowchart of FIG. The flowchart of FIG. 22 will be described below.

First, the processing unit 21 waits until the measurement start operation (operation in step S2 in FIG. 4) is performed by the user 2 (N in S10), and 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 to start acquisition of measurement data (S12).

Next, the processing unit 21 instructs the user 2 to take the address posture (S14). According to this instruction, the user 2 takes an address posture and stands still for a predetermined time or longer (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 the permission to start the swing (S18). The processing unit 21 notifies the user 2 of the permission to start the swing, for example, by outputting a predetermined sound or by providing the sensor unit 10 with an LED and turning on the LED. After confirming this notification, the swing operation (operation in step S6 of FIG. 4) is started.

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

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

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

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

Next, in steps S26 to S34, the processing unit 21 includes measurement data acquired from the sensor unit 10, swing start, top, and impact timings detected in step S22, and the position and posture of the sensor unit 10 calculated in step S24. At least a part of the above is used to calculate the values of various indicators related to the swing described above.

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

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

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

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

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

Then, the processing unit 21 generates swing analysis data 248 using various indexes calculated in steps S26 to S34 and transmits it to the swing diagnostic apparatus 30 (S36), and ends the swing analysis process.

In the flowchart of FIG. 22, the order of each step may be changed as appropriate, a part of the steps may be deleted or changed, or another step may be added.

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

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

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

Further, in the present embodiment, the storage unit 34 stores (stores) 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 each 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 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 347. There is. Details of these score tables will be described later.

Further, the storage unit 34 is used as a work area of the processing unit 31, and temporarily stores the calculation results and the like executed by the processing unit 31 according to various programs. Further, the storage unit 34 may store data that needs to be stored for a long period of 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 receives the swing analysis data 248 from the communication unit 27 of the swing analysis device 20 and sends it to the processing unit 31. Further, for example, the communication unit 32 transmits the information necessary for displaying the selection screen of FIG. 7 to the communication unit 27 of the swing analysis device 20, and the selection information on the selection screen of FIG. 7 is communicated with the swing analysis device 20. A process of receiving from the unit 27 and sending to the processing unit 31 is performed. Further, for example, the communication unit 32 receives information necessary for displaying the input data editing screen of FIG. 8 from the processing unit 31 and transmits the information to the communication unit 27 of the swing analysis device 20. Further, for example, the communication unit 32 receives the input data when the diagnosis start button on the input data editing screen of FIG. 8 is pressed from the communication unit 27 of the swing analysis device 20 and sends the input data to the processing unit 31 to the processing unit 31. From the above, information on the diagnosis result based on the input data (scores and total points 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. Further, for example, the communication unit 32 receives information necessary for displaying the swing diagnosis screen of FIG. 9 from the processing unit 31 and transmits the information to the communication unit 27 of the swing analysis device 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 (adds it to the swing analysis data list 341) according to various programs. Further, the processing unit 31 receives various information from the swing analysis device 20 via the communication unit 32 according to various programs, and displays various screens (screens of FIGS. 7, 8, 9, 9 and the like). A process of transmitting necessary information to the swing analysis device 20 is performed. In addition, the processing unit 31 performs various other control processes.

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

The data acquisition unit 310 performs a process in which the communication unit 32 receives the swing analysis data 248 received from the swing analysis device 20 and sends it to the storage processing unit 312. Further, the data acquisition unit 310 performs a process in which the communication unit 32 receives various information received from the swing analysis device 20 and sends it to the score calculation unit 311.

The storage processing unit 312 performs read / write processing of various programs and various data on 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. A process of reading the swing analysis data 248 from the list 341 is performed. Further, for example, the storage processing unit 312 stores 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. The process of reading 347 is performed.

The score calculation unit 311 (level calculation unit) performs a process of 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 the 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, on the input data editing screen of FIG. 8, when the diagnosis start button is pressed without editing each index of gender, golf club type, and swing with the initial values, the score calculation unit 311 performs the swing analysis data list. A process of calculating a score is performed based on the swing analysis data 248 selected from 341. On the other hand, on the input data editing screen of FIG. 8, when the diagnosis start button is pressed after at least one of the gender, golf club type, and swing indicators has been edited, the score calculation unit 311 performs the selected swing analysis. A process of calculating a score is performed based on data (pseudo data) in which at least a part of data 248 is edited.

The plurality of items for which the score is calculated include the first item relating to at least one of the backswing and the downswing. The first item is at least one virtual surface, the position of the head 3a (an example of the striking part) of the golf club 3 (an example of exercise equipment) at the first timing during the backswing, and the second during the downswing. May include an item indicating the relationship with the position of the head 3a at the timing of. 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 along the horizontal direction during the downswing.

At least one virtual surface is in the first line segment 51, which 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. It may include a shaft plane SP which is a first virtual plane specified based on a second line segment 52 which is a second axis along the line. The time before the start of the backswing may be at the time of addressing (when the user 2 is in the addressing posture and is stationary).

Further, at least one virtual surface is a first line segment 51, which is the first axis along the target direction (target line) of the hit ball in the XY plane as a reference plane, and the length of the golf club 3 before the start of the backswing. A Hogan plane HP which is a second virtual plane (that is, a second virtual plane forming an angle β with the first virtual plane) specified based on a third line segment 53 which is a third axis forming an angle β with a direction. It may be included.

Note that at least one virtual surface may include only one of the shaft plane SP and the Hogan plane HP. Further, 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, and the outside of the shaft plane SP and the Hogan plane HP). A plane that intersects at least one of the shaft plane SP and the Hogan plane HP).

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

The first item may also include an item relating to swing efficiency. The item relating 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 shows the relationship between the "grip deceleration rate", which is an index based on the amount of deceleration of the grip, and the "grip deceleration time rate", which is an index based on the deceleration period of the grip, as items related to swing efficiency. An item (hereinafter, this item name is referred to as "swing efficiency") is included.

The plurality of items for which the score is calculated further include a second item relating to impact (at the time of hitting the ball). 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 at the time of impact (at the time of hitting a ball). Hereinafter, the second item is "club path (incident angle) ψ" which is an index based on the incident angle of the head 3a of the golf club 3 at impact and "relative face angle η" which is an index based on the inclination of the head 3a at impact. ”(Hereinafter, this item name will be referred to as“ impact ”) shall be included.

Further, the second item may include an item indicating the relationship between the attack angle of the head 3a of the golf club 3 and the absolute face angle at the time of impact (at the time of hitting the ball). In the following, the second item is the "attack angle δ" that depends on the position of the head 3a of the golf club 3 at impact and its lowest point, and the "absolute face angle φ" that is an index based on the inclination of the head 3a at impact. It shall include an item indicating the relationship with (hereinafter, this item name is referred to as "down blow" or "upper blow").

The plurality of items for which the score is calculated may further include a third item relating to the transition from the backswing to the downswing and the impact (at the time of hitting the ball). The third item is the relationship between the rotation angle around the long axis of the golf club 3 at the time of transition 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 the ball). It may include an item indicating. Hereinafter, the third item is an index based on the rotation angle around the long axis of the golf club 3 at the top timing, "shaft axis rotation angle θ _{top at the top} ", and an index based on the inclination of the head 3a at the impact. An item indicating the relationship with "(absolute) face angle φ" (hereinafter, this item name is referred to as "rotation") is included.

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 information on the points and total points of the plurality of items calculated by the point 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 points (levels) and total points of a plurality of items.

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

The method of calculating the score of each item and the method of 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 points for the "V zone" item In the score calculation unit 311, the head 3a positions during halfway back and halfway down are determined based on the shaft plane SP and the Hogan plane HP (V zone), respectively. The score of the "V zone" item is calculated according to which area of the area belongs to.

24A and 24B are diagrams showing 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 regions A to E when viewed from the negative side of the X axis (projected on the YZ plane). FIG. 24B is a diagram showing a schematic example of the postures of the shaft plane SP, the Hogan plane HP, and the user 2. The area B is a predetermined space including the Hogan plane HP, and the area 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 area A is a space in contact with the area B at the boundary surface _SA B on the opposite side of the area C. The area E is a space in contact with the area D at the boundary surface _SDE opposite to the area 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 can be considered. As an 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 just in the middle of the boundary surface S _CD and the boundary surface S _DE . Moreover, the angles around the origin O (X axis) of the area B, the area C, and the area D can be set to be equal. That is, with respect to the angle β formed by the shaft plane SP and the Hogan plane HP, the angle formed by the Hogan plane HP and the boundary surface S _AB and the boundary surface S _BC is set to β / 4, respectively, and the angle formed by the shaft plane SP and the boundary surface is set to β / 4. If the angle formed by the S _CD and the boundary surface S _DE is set to β / 4, the angles of the area B, the area C, and the area D are all set to β / 2.

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

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

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

The information of the determination result is transmitted to the swing analysis device 20, and is used as information of "gender" and "area to which the head 3a position at the time of halfway down belongs" on the input data editing screen of FIG. After that, the score calculation unit 311 provides information on "the area to which the head 3a position at the time of halfway back belongs" and "the area to which the head 3a position at the time of halfway down belongs" included in the swing data (input data to be diagnosed). Refer to the V zone score table 342 and calculate the score corresponding to the determination result.

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 time of halfway back belongs and the area to which the head 3a position at the time of halfway down belongs. To do. For example, the score when the head 3a position at the time of halfway back belongs to the area A and the position of the head 3a at the time of halfway down belongs to the area A is pv1. The points pv1 to pv25 shown in FIG. 25 are, for example, any of 1 to 5 points, respectively.

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

For example, if the head 3a position at the time of halfway back belongs to the area E and the head 3a position at the time of halfway down belongs to the area A, it is expected that the hit ball is likely to bend, so that the score calculation unit 311 Calculate a relatively low score. Therefore, in the example of FIG. 25, pv21 may be, for example, one point which is the lowest point among the points 1 to 5.

Further, for example, when the head 3a position at the time of halfway back and the head 3a position at the time of halfway down both belong to the region C, it is expected that the hit ball is likely to fly straight, so that the score calculation unit 311 is relatively Calculate a high score (for example, out of 5). Therefore, in the example of FIG. 25, pv13 may be, for example, 5 points, which is the highest point among 1 to 5 points.

1-5-2. Calculation of the score of the "rotation" item The score calculation unit 311 calculates the score of the "rotation" item 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 to which range the shaft axis rotation angle θ _top and the face angle φ at the time of the top included in the swing data (input data to be diagnosed) belong to. Next, the score calculation unit 311 refers to the rotation score table 343 and calculates the score corresponding to the determination result.

In the present embodiment, as shown in FIG. 26, the rotation point table 343 defines the 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 top} belongs is “θ1 or less”, “θ1 or more and less than θ2”, “θ2 or more and less than θ3”, “θ3 or more and less than θ4”, “θ4 or more”. It is classified into five ranges. The range to which the face angle φ belongs is "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 7 ranges of "φ6 or more". Then, for example, when the shaft axis rotation angle θ _{top at the top} belongs to “less than θ1” and the face angle φ belongs to “less than φ1”, the score is pr1. The points pr1 to pr35 shown in FIG. 26 are, for example, any of 1 to 5 points, respectively.

The score calculation unit 311 may calculate a score so low that the hit ball predicted based on the relationship between the shaft axis rotation angle θ _{top at the top} and the face angle φ is easy to bend.

For example, when the shaft axis rotation angle θ _{top at the top} is extremely large, the face surface of the golf club 3 is extremely open, so that the face surface does not return to the square at the time of impact and the hit ball is likely to bend. It is expected to be. Further, the state where the face angle φ is extremely large is the state where the face surface is extremely open at the time of impact (open), and the state where the face angle φ is extremely small (the negative state where the absolute value is large) is at the time of impact. The face surface of the ball is extremely closed (closed), and it is expected that the hit ball is easily bent in either 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. Part 311 calculates a relatively low score. Therefore, in the example of FIG. 26, pr29 and pr35 may be, for example, one point which is the lowest point among the points 1 to 5.

Further, for example, if the shaft axis rotation angle θ _{top at the top} is small, it is expected that the face surface will return to the square at the time of impact and the hit ball will easily fly straight. Further, when the face angle φ is close to 0 °, the face surface at the time of impact is close to square, so it is expected that the hit ball is likely to fly straight. That is, for example, when the shaft axis rotation angle θ _top belongs to “less than θ1” and the face angle φ belongs to “φ3 or more and less than φ4”, it is expected that it is easy to fly straight, so that the score calculation unit 311 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, which is the highest point 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 to which range the club path (incident angle) ψ included in the swing-related data (input data to be diagnosed) belongs. Further, the score calculation unit 311 calculates the relative face angle η by subtracting the club path (incident angle) ψ from the face angle φ included in the swing data (input data to be diagnosed) (see FIG. 18), and is relative. It is determined which range the face angle η belongs to. 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 includes 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. The range to which the club path (incident angle) ψ belongs is classified into five ranges: “ψ1 or less”, “ψ1 or more and less than ψ2”, “ψ2 or more and less than ψ3”, “ψ3 or more and less than ψ4”, and “ψ4 or more”. Has been done. Then, 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. The points pi1 to pi25 shown in FIG. 27 are, for example, any of 1 to 5 points, respectively.

The score calculation unit 311 may calculate a score 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 easy to bend.

For example, the state where the relative face angle η is extremely large is the state where the face surface is open at the time of impact (open), and the state where the face angle φ is extremely small (the negative state where the absolute value is large) is the state at the time of impact. The face surface is extremely closed (closed), and it is expected that the hit ball is likely to bend in either state. Further, for example, in a state where 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 it is expected that the hit ball is likely to bend. In a state where the club path (incident angle) ψ is extremely small (a negative state in which the absolute value is large), the trajectory of the head 3a at the time of impact is extremely outside-in, so it is expected that the hit ball is likely to bend. 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 easily bent. Since it is expected, the score calculation unit 311 calculates a relatively low score. Therefore, in the example of FIG. 27, pi1, pi5, pi21, pi25 may be, for example, one point which is the lowest point among the points 1 to 5.

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 square and the head 3a at the time of impact. Since the trajectory of the ball is close to straight, it is expected that the hit ball will fly straight. That is, for example, when the relative face angle η belongs to “less than η2 and η3 or more” and the club path (incident angle) ψ belongs to “ψ2 or more and less than ψ3”, it is expected that it is easy to fly straight, so the score is calculated. Part 311 calculates a relatively high score (for example, a maximum of 5 points). Therefore, in the example of FIG. 27, the pi13 may be, for example, 5 points, which is the highest point among 1 to 5 points.

1-5-4. Calculation of points for the "down blow" item When the iron is selected as the golf club 3, the point calculation unit 311 determines 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 to which range the face angle φ shown in FIG. 18 belongs. Next, as shown in FIG. 28, the score calculation unit 311 refers to the down blow score table 345 and calculates the score corresponding to the determination result.

In the present embodiment, as shown in FIG. 28, the down blow score table 345 defines the score 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 less than 0”, “+ δ4 or more”. For example, it is classified into five ranges (δ1> δ2> δ3, δ4≈0). In addition, the range to which the absolute face angle φ belongs is classified into, for example, five ranges of "-φ1 or more", "-φ1 or more and 0 or less", "0 or more + less than φ1", "+ φ1 or more + less than φ2", and "+ φ2 or more". (Φ1 <φ2). Then, 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 value δ4 may be made as small as possible (δ4≈0). As described above, the second code (positive) of the attack angle (first angle) δ at 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 iron club for which down blow is required has the second sign (positive) of the attack angle (first angle) δ, the swing can be evaluated to the minimum 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 greater than the first threshold value φ2, the scores of Pd21 to Pd24 in FIG. 28 satisfying this condition can be set low. As described above, the first sign (negative) of the attack angle (first angle) δ at the impact indicates the down blow in which the lowest point of the club head 3a during the downswing is before the impact. Further, when the attack angle (first angle) δ is 0 (zero), a genuine level blow is obtained, but a level blow having a small absolute value of the attack angle, which is the first sign (negative), can be regarded as a level blow. .. Even in this case, when the absolute face angle (second angle) φ is determined to be equal to or greater than the first threshold value φ2, which is an excessively open state, the attack angle (first angle) δ indicates a down blow. However, the score can be lowered and the swing evaluation can be lowered.

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 value φ1, the scores of Pd8, Pd9, Pd13, and Pd14 satisfying 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 the appropriate range. In addition, even 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 within the appropriate range. In such a case, the swing can be evaluated to the maximum 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 equal to or greater than the third threshold φ1 and less than the first threshold φ2, the scores of Pd16 to Pd19 satisfying 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 that case, if the absolute value of the absolute face angle (second angle) φ is equal to or more than the third threshold value φ1 and less than the first threshold value φ2, the score is low. The scores of Pd21 to Pd24 in FIG. 28 and the scores of Pd16 to Pd19 in FIG. 28 may be the same.

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 equal to or greater than the third threshold value φ1, the scores of Pd1, Pd2, Pd3, and Pd4 in FIG. 28 satisfying this condition are set to be higher medium scores than lower scores (2nd angle). = Medium 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 portion) 3a with respect to the striking target direction at impact is closed. In that 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 middle score is 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 more than the fourth threshold value δ1 and less than the second threshold value δ2. Further, when the sign of the absolute face angle (second angle) φ is the third sign (negative) and the absolute value of the absolute face angle (second angle) φ is less than the third threshold value φ1, this condition is satisfied. The score of 28 (Pd7) is lower than the maximum score and higher than the medium 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 down blow. In that case, if the absolute value of the attack angle (first angle) δ is equal to or more 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 the 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 portion) 3a with respect to the striking target direction at 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 value 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 more than the fourth threshold value δ1 and less than the second threshold value δ2. Moreover, when the sign of the absolute face angle (second angle) φ is the fourth sign (positive) and the absolute value of the absolute face angle (second angle) φ is less than the third threshold value φ1, this condition is satisfied. The score of 28 (Pd12) is lower than the maximum score and higher than the medium 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 down blow. In that case, if the absolute value of the attack angle (first angle) δ is equal to or more 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 the 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 portion) 3a with respect to the striking target direction at impact is open. In the above case, if the absolute value of the attack angle (first angle) δ is less than the third threshold value φ1, the score is lower than the maximum score and higher than the middle score.

In the present 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 fourth sign (positive). The larger the absolute value of the two angles, the lower the score can be calculated (for example, Pd6 <Pd7 <Pd8, Pd9, Pd11 <Pd12 <Pd13).

Further, 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, the more. A high score can be calculated (eg, Pd2 <Pd7 = Pd12 <Pd8 = Pd13, and Pd7 = Pd12> Pd17).

Further, 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 third sign (negative). , The larger the absolute value of the second angle, the lower the score is calculated (for example, Pd1 <Pd6, Pd2 <Pd7, Pd3 <Pd8, Pd4 <Pd9).

1-5-5. Calculation of the score of the "upper blow" item When the driver (wood) is selected as the golf club 3, the score calculation unit 311 belongs to which range of the plurality of ranges the attack angle δ and the absolute face angle φ each belong to. The score of the "upper blow" item is calculated accordingly. 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 have an up blow, when the sign of the attack angle (first angle) δ is the first sign (negative) indicating the down blow, Pu5, Pu10, Pu15, Pu20 satisfying this condition. , Pu25 score is the minimum score. Further, even if the sign of the attack angle (first angle) δ is the second sign (positive) indicating the upper blow, when the absolute face angle (second angle) φ indicates an excessively open state (φ ≧ + φ2). , The scores of Pu21 to Pu24 satisfying this condition are the minimum scores. The scores Pu1 to Pu25 shown in FIG. 29 can have the same score among the corresponding numbers of the scores Pd1 to Pd25 shown in FIG. 28. 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). It should be noted that the values of δ1 to δ4 or the values of φ1 and φ2 may be shared or different between FIGS. 28 and 29. Further, in FIGS. 28 and 29, the values of Pd1 to Pd25 and the values of Pu1 to Pu25 may be shared or different.

1-5-6. Calculation of the score of the "swing efficiency" item The score calculation unit 311 determines 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 R _T included in the swing data (input data to be diagnosed) belong to. Next, the score calculation unit 311 refers to the swing efficiency score table 347 and calculates the 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 R _T belongs. In the example of FIG. 30, the range of the grip deceleration rate R _V belongs, "nu1 or more", "nu2 more than nu1", "nu3 more than nu2", "nu4 more than nu3", "nu5 more than nu4", " It is classified into 6 ranges of "less than nu5". The range to which the grip deceleration time rate _RT belongs is "nup1 or more", "nup1 or less nup2 or more", "nup2 or less nup3 or more", "nup3 or less nup4 or more", "nup4 or less nup5 or more", "nup5 or less". It is classified into 6 ranges. Then, for example, when the grip deceleration rate R _V belongs to "nu1 or more" and the grip deceleration time rate R _T belongs to "nup1 or more", the score is ps1. The points ps1 to ps36 shown in FIG. 30 are, for example, any of 1 to 5 points, respectively.

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 R _T is higher.

When accelerating the head 3a in the golf swing, it is considered that the natural rotation of the golf club occurs by relaxing the arm in the downswing and decelerating the arm, and the shaft accelerates. Then, the natural rotation of the golf club can be grasped by how much the speed of the grip decreases during the downswing. Therefore, it is expected that the higher the grip deceleration rate R _V, the more efficient the swing utilizing the natural rotation of the golf club can be realized. However, if the timing at which the natural rotation of the golf club occurs is close to the timing of impact, that is, if the grip deceleration time rate _RT is low, the impact will be reached without fully utilizing the natural rotation of the golf club. , It is not always 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 R _T belongs to "nup1 or more", the swing efficiency is expected to be high, so that the score calculation unit 311 , Calculate a relatively high score. Further, for example, when the grip deceleration rate R _V belongs to "less than nu 5" and the grip deceleration time rate R _T belongs to "less than up 5", the swing efficiency is expected to be low, so that the score calculation unit 311 , Calculate a relatively low score. Therefore, in the example of FIG. 30, ps1 may be, for example, 5 points which is the highest point among 1 to 5 points, and ps36 may be 1 point which is the lowest point among 1 to 5 points, for example. ..

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

In the present embodiment, the bending score table 348 of the ball 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, as shown in FIG. 31. In the example of FIG. 31, the range to which the head speed ν belongs is classified into five ranges of “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 done. The range to which the relative face angle η belongs is "η1 or more and less than φ2", "η2 or more and less than η3", "η3 or more and less than η4", "η4 or more and less than η5", "η5 or more and less than η6". , It is classified into 7 ranges of "η6 or more". Then, 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. The points pc1 to pc35 shown in FIG. 31 are, for example, any of 1 to 5 points, respectively.

The score calculation unit 311 may calculate a score as low as the hit ball predicted based on the relationship between the head speed ν and the relative face angle η is easy to bend. 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 expected that the hit ball is likely to bend like a hook, or the relative face angle η is “η6 or more”. In the case of belonging to, since it is expected that the hit ball is easily 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, for example, one point which is the lowest point among the points 1 to 5.

Further, for example, when the relative face angle η is close to 0 °, it is expected that the hit ball is likely to fly straight. That is, for example, when the relative face angle η belongs to “η3 to η4”, it is expected that it is easy to fly straight, so the score calculation unit 311 calculates a relatively high score (for example, a maximum of 5 points). To do. Therefore, in the example of FIG. 31, pc4 may be, for example, 5 points, which is the highest point 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 velocity of the head 3a at the time of impact (at the moment of impact, immediately before impact or immediately after impact). The score of the "ball launch direction" item is calculated depending on which range of a plurality of ranges each head speed ν (hereinafter referred to as head speed ν) belongs to. Specifically, first, the score calculation unit 311 determines to which range the club path (incident angle) ψ included in the swing-related data (input data to be diagnosed) belongs. Further, the score calculation unit 311 calculates the head speed ν included in the swing-related data (input data to be diagnosed), and determines to which range the head speed ν belongs. 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 path (incident angle) ψ belongs. In the example of FIG. 32, the range to which the head speed ν belongs is classified into five ranges of “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 done. The range to which the club path (incident angle) ψ belongs is classified into five ranges: “ψ1 or less”, “ψ1 or more and less than ψ2”, “ψ2 or more and less than ψ3”, “ψ3 or more and less than ψ4”, and “ψ4 or more”. Has been done. Then, for example, the score when the head speed ν belongs to “less than ν1” and the club path (incident angle) ψ belongs to “less than ψ1” is pw1. The points pw1 to pw25 shown in FIG. 32 are, for example, any of 1 to 5 points, respectively.

The score calculation unit 311 may calculate a lower score as the deviation in the launch direction of the hit ball predicted based on the relationship between the head speed ν and the club path (incident angle) ψ is larger. For example, if the head speed ν belongs to “ν4 or more” and the club path (incident angle) ψ belongs to “less than ψ1”, the hit ball is expected to be launched to the left, or the club path (incident angle) ψ When is belonging to "ψ4 or more", it is expected that the hit ball is launched to the right, so 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 which is the lowest point among the points 1 to 5.

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 expected to be launched straight, so that 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 is the highest point among 1 to 5 points.

Here, in each of the score tables shown in FIGS. 25 to 32, the level is calculated based on the first index and the second index. In this way, the level can be calculated by positioning the swing in the biaxial coordinates of the first index and the second index, and the swing of the golf club (transport equipment) at the impact can be objectively determined.

In addition, a look-up table can be used because a score is assigned to each area in advance according to the relationship between the first index and the second index. The look-up table can specify a score based on the first index and the second index, and calculate the score as a level. In this way, the look-up table scores the swing according to the relationship between the first index and the second index, so that it is easy and appropriate to objectively determine the swing of the golf club (transportation equipment) at impact. Can be executed.

1-5-9. Calculation of total points The point calculation unit 311 has 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, and items. 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 maximum of 5 points and the total score is 100 points, the score calculation unit 311 multiplies the score of each item by 4 to obtain a maximum of 20 points. You may add them to calculate the total score. On the swing diagnosis screen shown in FIG. 9, the score of each item out of 5 points is displayed on the radar chart, and the total score is 64 points obtained by multiplying the score of each item by 4 and adding them.

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

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

First, the processing unit 21 of the swing analysis device 20 transmits the 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 diagnostic 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 device 20 receives the list information of the swing analysis data 248, and causes the display unit 25 to display the swing analysis data selection screen (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 of FIG. 33), and when it is selected (Y in S120 of FIG. 33). ), The selection information of the swing analysis data is transmitted to the swing diagnostic device 30 (S130 in FIG. 33).

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

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

Next, the processing unit 31 of the swing diagnostic apparatus 30 transmits various information based on the selected swing analysis data (S240 in FIG. 34). Various information based on the selected swing analysis data includes the determination result of the process S220, the determination result of the process 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 axis 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 device 20 receives various information based on the selected swing analysis data 248, and causes the display unit 25 to display the input data editing screen (FIG. 8) (S140 in FIG. 33). ).

Then, the processing unit 21 of the swing analysis device 20 waits until the diagnosis start operation is performed on the input data editing screen (N in S150 of FIG. 33), and when the diagnosis start operation is performed (S150 in FIG. 33). Y), the input data to be diagnosed is transmitted to the swing diagnostic apparatus 30 (S160 in FIG. 33).

Next, the processing unit 31 of the swing diagnostic 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). 34 S260).

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

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

In the flowchart of FIG. 33, the order of each step may be changed as appropriate, some steps may be deleted or changed, or other steps may be added. Similarly, in the flowchart of FIG. 34, the order of each step may be appropriately changed to the extent possible, some steps may be deleted or changed, or other steps may be added.

FIG. 35 is a flowchart showing an example of a procedure of a process (step S260 of FIG. 34) for calculating points and total points of a plurality of items by the processing unit 31 (point calculation unit 311) of the swing diagnostic 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 area to which the head 3a position at the time of halfway back belongs and the area to which the head 3a position at the time of halfway down belongs. The score (the score of the "V zone" item) is calculated (S261).

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

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

Next, when the iron is selected as the golf club 3, the processing unit 31 refers to the down blow point table 345 stored in the storage unit 34, and the points corresponding to the attack angle δ and the absolute face angle φ ( The score of the "down blow" item) 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 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 the score corresponding to the grip deceleration rate R _V and the grip deceleration time rate R _T (the score of the “swing efficiency” item). Is calculated (S266).

Finally, the processing unit 31 calculated the score of the "V zone" item calculated in the process S261, the score of the "rotation" item calculated in the process S262, the score of the "impact" item calculated in the process S264, and the score of the "impact" item calculated in the process 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 score of the "ball bending" item and "ball launching direction" (not shown), the total score is given. 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 the first analysis information related to each index. Image data related to swing analysis data as second analysis information of another user corresponding to the processing and the image displayed on the display unit 25 (for example, "V zone") is generated. Then, the display processing unit 214 causes the display unit 25 to display various images (including characters, symbols, and the like in addition to the images corresponding to the image data generated by the image data generation unit 212).

As a specific display method on the display unit 25, for example, a scoring result based on a score table for the “ball bending” item as shown in FIG. 31 is used as an index based on the trajectory of the head of the golf club 3 at impact. A two-axis coordinate system based on the correlation between the "club path (incident angle)" and the "head speed", which is an index of the magnitude of the head speed at the time of impact (at the moment of impact, immediately before 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 respect to the incident direction of the head of the golf club 3 at the hitting point 75 at the impact is based on the scoring result of the “ball launching direction” item as shown in FIG. 32. The "relative face angle", which is an index representing (see FIG. 18), and the "head speed", which is an index of the magnitude of the head speed at the time of impact (at the moment of impact, immediately before or immediately after impact). A correlation diagram of "ball bending" can be shown in a two-axis coordinate system based on 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 showing a display example of the “launching direction” as the display example 1. FIG. 36B is a histogram of another display example relating to the “launching direction”. FIG. 37A is a diagram showing a display example of “bending” 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 locus RS of the club head of the right-handed subject and the swing locus 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 loci, which has a mirror image shape due to the difference in the dominant hand of the subject, is inverted and the other is non-inverted. FIG. 40 is a diagram showing a “launching direction” and a “bending” as a display example 3. FIG. 41 is a diagram showing a modification of Display Example 3. FIG. 42 is a diagram showing a “launching direction” and a “bending” as a display example 4. FIG. 43 is a diagram showing the target area in the “launching direction” as display example 5. FIG. 44 is a diagram in which the target area is displayed in a “bend” as a display example 6. FIG. 45 is a diagram showing a “launching direction” and a “bending” as a display example 7.

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

As shown in FIG. 36A, on the display unit 25, one axis is a “club path (incident angle)” which is an index based on the trajectory of the head of the golf club 3 at impact, and the other axis is at impact. A generally fan-shaped coordinate system is displayed as "head speed", which is an index of the magnitude of the head speed (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.

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

It is preferable that the plurality of time-series region images 81A, 82A, and 83A 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 (broken line), and the time-series area image 83A is a one-dot chain line. It is displayed. Further, in this display example, as an example of the display constituting the time-series area image 81A, "a set of analysis data from the present to 7 days ago" is shown, and the display constituting the time-series area image 82A is shown. As an example, "a set of analysis data from 8 days ago to 14 days ago" is shown, and as an example of the display constituting the time-series area image 83A, "a set of analysis data from 15 days ago to 21 days ago" is shown. "It is shown. And this example content is shown in the legend area (check box) 92.

By the way, a golfer with high skill (user 2) has high swing reproducibility, and the variation of each index when analyzing multiple swings is small, while a golfer with low skill (user 2) has low swing reproducibility. , The variation of each index when analyzing a plurality of swings tends to be large.
Therefore, in this way, in the first area image 80A, the display form (for example, line type, color, etc.) is displayed differently for each of the time-series area images 81A, 82A, and 83A. It is possible to obtain concrete and objectively visible visual information including how the ability (level) related to the launch direction of the ball in a plurality of swings has changed from the past to the present, and variations. ..

Further, as shown in FIG. 36A, the display unit 25 has a second area image 90A (embossed) corresponding to the first area image 80A of a plurality of swings by another user other than the user 2. The image related to the direction) is also displayed. The second area image 90A shows the degree of concentration of the analysis data by displaying the analysis data related to the launch direction of another user on the background of the first area image 80A by mapping (heat map) display. In this example, the variation (variation range) and the degree of data concentration are classified by the gradation display represented by the shade of color, and the data is concentrated as shown in the legend area (check box) 94. The part is displayed as a light-colored part (white part in this figure).

In the display example shown in the present display example 1, the time-series area images 81A, 82A, and 83A showing the launch direction of the user 2 are in a state of a plurality of swings by another user (a plurality of states by another user). It can be seen that it is slightly biased to the right side in the figure compared to the white part) where the swing data is concentrated. As a result, the user 2 can confirm that his / her ability (level) is compared with that of other users (others) and tends to be launched slightly to the right. The same confirmation can be performed in the following display examples, but the description in each display example will be omitted.

Further, the first region image 80A generated based on the first analysis information (“club path (incident angle)” and “head speed”) is in the Cartesian coordinate system as shown in FIG. 36B. It can be displayed as a graph showing the frequency of the above as variation (frequency distribution). The Cartesian coordinate system shown in FIG. 37A is composed of 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 launch direction of the ball". In the Cartesian coordinate system shown in FIG. 36B, polygonal lines 84A, 85A, 86A (first region image) as a plurality of time series region images are shown. The polygonal lines 84A, 85A, and 86A are shown as regions by lines indicating the variation range of the launch direction as a time-series region image relating to the launch direction of the ball in the previously performed swing.

Further, the display unit 25 has a second data regarding the launch direction of the ball corresponding to the polygonal lines 84A, 85A, 86A of the polygonal lines 84A, 85A, 86A and a plurality of swings by a user other than the user 2. The area image 88A of the above is displayed together. The second region image 88A is displayed in the background of the polygonal lines 84A, 85A, and 86A, and shows the distribution (degree of concentration) of the analysis data regarding the launch direction of the balls related to a plurality of swings by another user as the frequency distribution by the histogram. There is.

The display forms of the polygonal lines 84A, 85A, and 86A as a plurality of time-series region images are different from each other. The polygonal line 84A is displayed as a solid line, the polygonal line 85A is displayed as a dotted line (broken line), and the polygonal line 86A is displayed as a one-dot chain line. .. Further, in this display example, "a set of analysis data from the present to 7 days ago" is shown as an example of the display constituting the polygonal line 84A, and "8 days to 14 days ago" as an example of the display constituting the polygonal line 85A. "A set of analysis data between 15 days and 21 days ago" is shown, and "a set of analysis data between 15 days ago and 21 days ago" is shown as an example of the display constituting the polygonal line 86A. And this example content is shown in the legend area (check box) 92.

Even if such a display method is used, as in the fan-shaped coordinate system described above, how the user 2 transitions from the past to the present with respect to the ability (level) related to the launch direction of the ball in a plurality of swings. It is possible to easily identify the coordinates at a glance.

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

As shown in FIG. 37A, the display unit 25 uses one axis as an index indicating the inclination of the face surface 74 with respect to the incident direction of the head of the golf club 3 to the hitting point 75 at the impact shown in FIG. Approximately fan-shaped coordinates with "relative face angle" and the other axis as "head speed", which is an index of the magnitude of head speed at the time of impact (at the moment of impact, immediately before or immediately 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 the first analysis information (“relative face angle)” and “head speed” related to the bending of each ball, which is generated based on a plurality of data obtained from a plurality of swings. A plurality of time-series region images 81B, 82B, and 83B included in the first region image 80B generated in the above-mentioned are displayed together. Then, 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, 83B, and is surrounded by an outer peripheral line indicating the variation range of the analysis data. Area is shown. In other words, it corresponds to the variation of a plurality of data related to a plurality of swings depending on the size of the area surrounded by each outer peripheral line indicating the variation range of the plurality of time series area images 81B, 82B, 83B. There is. In this example, it is shown that the larger the area of the region, the larger the variation. In the display example shown in FIG. 37A, for example, the evaluation result based on the score evaluation based on the score table of the bend shown in FIG. 31 is plotted.

It is preferable that the plurality of time-series region images 81B, 82B, and 83B have different display forms. Specifically, as a plurality of time-series display forms, the time-series area image 81B is a solid line, the time-series area image 82B is a dotted line (broken line), and the time-series area image 83B is a one-dot chain line. It is displayed. Further, in this display example, as an example of the display constituting the time-series area image 81B, "a set of analysis data from the present to 7 days ago" is shown, and the display constituting the time-series area image 82B is shown. As an example, "a set of analysis data from 8 days ago to 14 days ago" is shown, and as an example of the display constituting the time-series area image 83B, "a set of analysis data from 15 days ago to 21 days ago" is shown. "It is shown. And this example content is shown in the legend area (check box) 92.

By the way, a golfer with high skill (user 2) has high swing reproducibility, and the variation of each index when analyzing multiple swings is small, while a golfer with low skill (user 2) has low swing reproducibility. , The variation of each index when analyzing a plurality of swings tends to be large.
Therefore, in this way, in the first area image 80B, the display form (for example, line type, color, etc.) is displayed differently for each of the time-series area images 81B, 82B, and 83B. It can be obtained as concrete and objectively visible visual information including how the ability (level) related to the bending of the ball in a plurality of swings has changed from the past to the present, and variations.

Further, as shown in FIG. 37A, the display unit 25 has a second area image 90B (bending) corresponding to the first area image 80B of a plurality of swings by another user other than the user 2. (Image related to) is also displayed. The second area image 90B shows the degree of concentration of the analysis data by displaying the analysis data related to the bending of the ball of another user on the background of the first area image 80B by mapping (heat map) display. In this example, the variation (variation range) and the degree of data concentration are classified by the gradation display represented by the shade of color, and the data is concentrated as shown in the legend area (check box) 94. The part is displayed as a light-colored part (white part in this figure).

Further, 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 the Cartesian coordinate system as shown in FIG. 37B. It can be displayed as a graph showing variation (frequency distribution). The Cartesian 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 data related to bending. In the Cartesian coordinate system shown in FIG. 37B, polygonal lines 84B, 85B, 86B (first region image) as a plurality of time series region images are shown. The polygonal lines 84B, 85B, and 86B are shown as regions by lines showing the variation range of the bending as a time-series region image regarding the bending of the ball in the previously performed swing.

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

The display forms of the polygonal lines 84B, 85B, and 86B as a plurality of time-series region images are different from each other. The polygonal line 84B is displayed as a solid line, the polygonal line 85B is displayed as a dotted line (broken line), and the polygonal line 86B is displayed as a one-dot chain line. .. Further, in this display example, "a set of analysis data from the present to 7 days ago" is shown as an example of the display constituting the polygonal line 84B, and "8 days to 14 days ago" as an example of the display constituting the polygonal line 85B. "A set of analysis data between 15 days and 21 days ago" is shown, and "a set of analysis data between 15 days ago and 21 days ago" is shown as an example of the display constituting the polygonal line 86B. And this example content is shown in the legend area (check box) 92.

Even if such a display method is used, as in the fan-shaped coordinate system described above, how the user 2 has transitioned from the past to the present with respect to the ability (level) related to the bending of the ball in a plurality of swings. The 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 operation is opposite. Therefore, when comparing the motion analysis data of subjects having different dominant hands, the rotation direction of the swing locus is displayed in the opposite direction, so that the comparison cannot be performed in an overlapping manner. However, when the motion analysis data of subjects with different dominant hands are mutually used for analysis, it can be dealt with by adding the dominant 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 XX plane of the absolute coordinate system ΣXYZ. A display example when projected or displayed in three dimensions and viewed from the side is shown. In FIG. 38, the intersection O of 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 locus RS and the swing locus LS have a mirror surface inversion relationship with respect to the reference plane including the Z axis passing through the origin O.

The swing locus RS and the swing locus LS have a substantially mirror image relationship with respect to the reference plane due to the difference in the dominant hand of the subject, and it is possible to automatically determine whether the user is right-handed or left-handed from the output of the sensor unit 10.

The motion analysis information corresponding to one (for example, LS) of a 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 in the swing analysis unit. It is calculated by 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 (for example, LS) of the motions (RS, LS) having a pair relationship as shown in FIG. 39. Can be displayed as an inverted image (/ LS).

As a result, as shown in FIG. 39, one of the paired motions (RS, LS) (for example, LS) is displayed on the other side (RS) of the paired motions (RS, LS). It is highlighted and displayed. That is, for example, an exercise in which the dominant hand is the left hand is displayed in the same direction as an image of the exercise in which the dominant hand is the right hand. This makes it easier to compare the exercise in which the dominant hand is the left hand with the exercise in which the dominant hand is the right hand, and facilitates motion analysis.

When both of the motions (RS, LS) having a pair relationship are input, the motion analysis information is calculated by the swing analysis unit 211 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 sets one inverted image (for example, / LS) of the motion (RS, LS) in a pair relationship. ) And the other (for example, RS) non-inverted image (RS) can be superimposed and displayed on the screen as shown in FIG. 39.

In this way, the movement in which the dominant hand is the left hand can be superimposed and displayed in the same direction as the movement in which the dominant hand is the right hand, so that the difference between the two images can be clearly grasped, and the swing analysis can be further performed. It will be easy.

(Display example 3)
Next, with reference to FIG. 40, as a display method displayed on the display unit 25, a display example including a first area image 80A (time-series area images 81A, 82A, 83A) and a second area image 90A. A display method including (embossing direction) and a display example (bending) 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, which is similar to the display example 1 (see FIG. 36A). Similar to the display example 2 (see FIG. 37A), a fan-shaped second coordinate system including the first region image 80B and the second region image 90B is arranged. The first coordinate system has two axes, "club path (incident angle)" and "head speed", which are two indexes related to the launch direction of the ball. In addition, the second coordinate system has two axes, "relative face angle" and "head speed", which are two indexes related to the bending of the ball.

The first coordinate system and the second coordinate system are arranged in line symmetry in which 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, it is a display method in which two coordinate systems, a first coordinate system and a second coordinate system, are arranged in one display unit 25 so as to face in opposite directions. 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 will be omitted.

With the display method of Display Example 3 as described above, in addition to the effects of Display Example 1 and Display Example 2, the user 2 can visually recognize both data at a glance, and can understand and understand the data (level). ) Can be efficiently dealt with.

(Modified example of display example 3)
Next, with reference to FIG. 41, a modified example of the display method described in the above-mentioned 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 (embossing direction) including the first region image 80A and the second region image 90A, and the first region image 80B and the second region image 80B. A display example (bending) including the area image 90B and a display example are included.

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

In the above-mentioned display example 3 shown in FIG. 40, the analysis data of the swing obtained by analyzing the swing previously performed is used as a plurality of time-series region images 81A, 82A, 83A, 81B, 82B, 83B. The area surrounded by the line indicating the variation range of is shown. Then, the legend described in the legend area (check box) 92 is the time series condition of the area images 81A, 82A, 83A, 81B, 82B, 83B (for example, the analysis data from the present to 7 days ago). The meeting "~ 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, for example, "88.6" or the like, respectively, of the area images 81A, 82A, 83A, 81B, 82B, 83B. It shows the degree of variation.

The degree of variation can be obtained by the formulas (18) to (26) shown below. In the following formulas, for example, processing such as normalization of data on the vertical and horizontal axes by the formulas (18) and (19) and calculation of the average value by the formulas (20) and (21) is performed, and the value is between 0 and 100. Can be calculated. Here, x _i and y _i indicate the horizontal axis and the vertical axis of the graph according to the display example. The degree of variation obtained indicates that the larger this value (closer to 100), the smaller the variation, that is, the smaller the area of the region surrounded by the outer peripheral line.

In this way, the variation of each of the area images 81A, 82A, 83A, 81B, 82B, and 83B is expressed by the area (image) display and the numerical value, so that the user 2 can see how from the past to the present. It is possible to easily identify at a glance whether the ability (level) and the degree of variation have changed.

(Display example 4)
Next, with reference to FIG. 42, as a display method displayed on the display unit 25, a display example including a first area image 80A (time-series area images 81A, 82A, 83A) and a second area image 90A. (Ejection direction), a display example including the first area image 80B (time-series area images 81B, 82B, 83B) and the second area image 90B (bending), and another example of the display method including the second area 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, which is similar to the display example 1 (see FIG. 36A). Similar to the display example 2 (see FIG. 37A), a fan-shaped second coordinate system including the first region image 80B and the second region image 90B is arranged. The first coordinate system has two axes, "club path (incident angle)" and "head speed", which are two indexes related to the launch direction of the ball. In addition, the second coordinate system has two axes, "relative face angle" and "head speed", which are two indexes related to the bending of the ball.

In the display method of the display example 3, the main part of the fan of the first coordinate system and the main part of the fan of the second coordinate system face in the same direction, and the main part of the fan of the first coordinate system is the first. The 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, in the present display example 4, the display method is such that two coordinate systems, a first coordinate system and a second coordinate system, are arranged in one display unit 25 so as to face in the same direction. 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 will be omitted. In this display example 4, the legend described in the legend area (check box) 92c is a specific date example as a designated range of the time series of the area images 81A, 82A, 83A, 81B, 82B, 83B. (For example, 2016.03.14 to 2016.03.20) are described. In this way, a specific date can be specified as a time-series condition (designated range).

In such a display method of Display Example 4, in addition to the effects of Display Example 1 and Display Example 2, the user 2 can visually recognize both data at a glance, as in the case of Display Example 3 described above. , It is possible to efficiently take measures related to understanding data and improving ability (level).

(Display example 5)
Next, with reference to FIG. 43, a modified example of the display method described in the display example 1 described above 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 the display example 5, similarly to the display example 1 described above, one axis is set as the “club path (incident angle)” which is an index based on the trajectory of the head 3a of the golf club 3 at impact on the display unit 25, and the other. A generally fan-shaped coordinate system is displayed in which the axis of is set to "head speed" which is an index of the magnitude of the speed of the head 3a at the time of impact (at the moment of impact, immediately before impact or immediately after impact). In this coordinate system, first analysis information (“club path (incident angle)” and “head speed” related to the launch direction of each ball, which is generated based on a plurality of data obtained from a plurality of swings. ), A plurality of time-series region images 81A, 82A, and 83A included in the first region image 80A are displayed together.

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

Then, 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 with 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 see how much the gap with the target is with respect to the launch direction and the bending method of the ball, or the current target with respect to the target. It is possible to visually and objectively visually confirm how much the ability (level) is (including variations), including variations.

The display method of the display example 5 can also be applied to the display showing 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 modified example of the display method described in the display example 2 described above 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, the inclination of the face surface 74 with respect to the direction of incidence of the head 3a of the golf club 3 at the impact on the hitting point 75 on the display unit 25 is set on the display unit 25 as in the display example 1. The index is "relative face angle", and the other axis is "head speed", which is an index of the speed of the head 3a at the time of impact (at the moment of impact, immediately before or immediately after impact). A fan-shaped coordinate system is displayed. This coordinate system is based on the first analysis information (“relative face angle)” and “head speed” related to the bending of each ball, which is generated based on a plurality of data obtained from a plurality of swings. A plurality of time-series region images 81B, 82B, and 83B included in the first region image 80B generated in the above-mentioned are displayed together.

Further, on the display unit 25, a second area image 90B (an image related to bending) corresponding to the first area image 80B of a plurality of swings by another user other than the user 2 is displayed together. ing. The second area image 90B shows the degree of concentration of the analysis data by displaying the analysis data related to the bending of another user on the background of the first area image 80B by mapping (heat map) display.

Then, 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 the first quadrant Z1, the second quadrant Z2, the third quadrant Z3, and the fourth quadrant Z4 by the reference lines DL1 and DL2. Then, for each of the four divided regions (first quadrant Z1, second quadrant Z2, third quadrant Z3, and fourth quadrant Z4), the ratio occupied by the plot points of the second region image 90B is the display area 96. Is displayed as a 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) in which the coordinate system is divided. The occupancy rate of the second region image 90B related to the estimation information that estimates at least one of the launching direction and the bending method of each ball corresponding to, that is, the launching direction of the ball for each swing and at least one of the bending methods. The occupancy rate related to the estimated information is displayed. As a result, the user 2 can know the swing state of another person. In addition, the user 2 can objectively confirm the launch direction of the ball in his / her plurality of swings, the bias regarding the bending method, and the like while comparing with the swings of others.

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

According to the display shown in the display examples 1 to 6 described above, the launch directions of the plurality of balls corresponding to the plurality of swings are based on the first analysis information generated based on the data relating to the plurality of swings. A coordinate system centered on at least two indexes of a plurality of time-series region images 81A, 82A, 83A, 81B, 82B, 83B included in the first region images 80A, 80B in which at least one of the bending directions is estimated. Display together. By performing such a display, the user 2 can determine the launch direction of the plurality of balls corresponding to the plurality of swings and the variation of at least one of the bending methods, in other words, the launching directions of the plurality of balls and the bending method. It is possible to visually and objectively visually confirm the current ability (level) of the user 2 related to at least one of them, including variations.

Further, according to the display method described above, the first area images 80A and 80B of the user 2 and the first area images 80A and 80B of a plurality of swings of another user other than the user 2 are supported. The two area images 90A and 90B are displayed together in the coordinate system centered on the two indexes of the display unit 25. As a result, the user 2 can easily compare the first area images 80A and 80B of the user 2 with the second area images 90A and 90B related to the swing of another person, and makes an objective evaluation. Can be done. For example, if a user other than the user 2 is set as a model other person, for example, a leader or a professional golfer, it is objective to see how far the ability of the user 2 is from the ability of the leader or the professional golfer. Can be evaluated.

(Display example 7)
Next, with reference to FIG. 45, as a display method displayed on the display unit 25, a display example including a first area image 80A (time-series area images 81A, 82A, 83A) and a second area image 90A. A display method including (embossing direction) and a display example (bending) 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, which is similar to the display example 1 (see FIG. 36A). Similar to the display example 2 (see FIG. 37A), a fan-shaped second coordinate system including the first region image 80B and the second region image 90B is arranged. The first coordinate system has two axes, "club path (incident angle)" and "head speed", which are two indexes related to the launch direction of the ball. In addition, the second coordinate system has two axes, "relative face angle" and "head speed", which are two indexes 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 center. Specifically, in one first coordinate system (launching direction), an index of "head speed" is arranged on the vertical axis side, and in the other second coordinate system (bending), a "relative face" is arranged on the vertical axis side. The "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 will be omitted.

With the display method of the display example 7, in addition to the effects of the display example 1 and the display example 2, the user 2 can visually recognize both data at a glance, and improve the understanding and ability of the data. It is possible to efficiently take measures related to.

(Modification example 1 of display method)
It is possible to estimate and display the ball's flying ball line (flying ball locus) from the analysis data (first area images 80A and 80B) such as the ball launch direction, the ball bending, and the head speed described above. .. Such a display method will be described below as a modified example 1 relating to another display method of the analysis result with reference to FIG. FIG. 46 is a diagram showing a modification 1 according to another display method of the analysis result.

The display according to the first modification is the score of the "ball bending" item according to the range to which the head speed ν and the relative face angle η belong as shown in FIG. 31, and the club path (incident angle) ψ as shown in FIG. It can be formed based on the result calculated by the score of the "ball launch direction" item according to the range to which the head speed ν belongs.

In the modified example 1 relating to the other display of the analysis result, as shown in FIG. 46, the hitting point P1, the flying ball line (flying ball locus) FC1 and FC2 of the ball, and the distribution of the arrival position of the ball ( Area images 81d, 82d, 83d showing the variation) and the target area 84d of the user 2 are shown on the display unit 25. The flying ball lines (flying ball locus) FC1 and FC2 of the ball show the moving loci of the ball from the hitting point to the arrival position, which are estimated based on the analysis result based on the measurement data of the swing of the user 2. The region images 81d, 82d, and 83d show the estimated distribution (variation) of the arrival positions of the balls, and the set divided for each time series is shown as a region surrounded by an outer peripheral line. For example, in the flying ball line (flying ball locus) FC1, the ball flew slightly sliced and reached the arrival position, and in the flying ball line (flying ball locus) FC2, the ball flew in a substantially straight line (straight). It indicates that it has reached the arrival position.

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

Further, on the display unit 25, as a comparison target, a second area image (at the arrival position) corresponding to the first area images 81d, 82d, 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 by the shading of the plot on the background of the first region images 81d, 82d, and 83d.

According to the first modification of the display method, the user 2 can confirm the movement locus of the ball hit by the user 2 on the image display, which is easy to understand.

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

(Modification example 2 of display method)
Next, with reference to FIG. 47, a modification 2 relating to another display of the analysis result will be described. FIG. 47 is a diagram showing a modified example 2 relating to another display of the analysis result.

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

In this way, the actual value P, which is the user's current ability, the area display of the target area (actual data of professional golfers A, B, C, etc.), and the actual value plotted in chronological order from the actual value P are displayed. Since it is displayed, the user 2 can visually understand at a glance whether he / she is heading toward the target related to the swing.

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, to change the position of the target area.

In the above embodiment, the swing analysis unit 211 detects the impact by using the square root of the sum of squares as shown in the equation (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 the squares of the triaxial angular velocities, the sum of the triaxial angular velocities or the average value thereof, or the product of the triaxial angular velocities may be used. Further, instead of the composite value of the triaxial angular velocity, a composite value of the triaxial acceleration such as the sum of squares of the triaxial acceleration or its square root, the sum of the triaxial acceleration or its average value, or the product of the triaxial acceleration may be used. ..

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

Further, in the above embodiment, the score calculation unit 311 has "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, or the scores of other items may be calculated. Further, in the above embodiment, the score calculation unit 311 calculates the total score, but it is not necessary to calculate the total score. In addition, "V zone", "rotation", "impact", "down blow" or "upper blow", and "swing efficiency (efficiency)", "head speed", "hand up", etc. Other items may be added, as long as the information relating to at least one of those items is included.

Further, in the above embodiment, the score calculation unit 311 calculates the scores of a plurality of items using various score tables, but a mathematical formula may be used instead of the score table.

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

Further, in the above embodiment, in order to define the regions A, B, C, D, and E to which the head 3a belongs, the concept of V zone (region sandwiched between the shaft plane and the Hogan plane) is introduced. This V zone is a region sandwiched between a first virtual surface along the longitudinal direction of the golf club 3 and a second virtual surface passing near the shoulder of the user 2 (see FIG. 48A). The first virtual surface is, for example, a so-called shaft plane identified 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). By the way, parallel virtual planes are sometimes called "shoulder planes" (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 surface. 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 planes shown in FIG. 48C are virtual planes set based on the posture of the shaft before the start of the swing, and the first virtual plane is a virtual plane that passes near the elbow of the user 2 and is a second virtual plane. Is a virtual surface that passes near the user's knees. Further, the first virtual surface and the second virtual surface are non-parallel, and intersect with each other on, for example, an extension straight line toward the grip end of the golf club 3.

Further, together with 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 You can display a comment that shows the practice method based on it. In this way, by displaying the diagnostic information and the practice method based on the diagnostic information as comments, the user 2 can easily understand the swing state and take appropriate measures for improving the swing. You can do it and you can practice efficiently.

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

As shown in FIGS. 49 and 50, the swing diagnosis system 1000 as a motion analysis system according to a modified example 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 done. Of 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 / received between 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 the user and is used for the user to practice a golf swing. Further, 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 and 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, appropriately referred to as a "customer"). Users visit the manufacturer or shop for the purpose of purchasing a golf club.

The operator of the customer terminal 350 is an employee of the customer (manufacturer or shop). In this variant, the employee finds a golf club that fits the user by having the user who visits the manufacturer or shop try out the golf club, and encourages 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 information will be provided to the user terminal 320. In addition, the administrator of the server 300 is also a person who has promised in advance that information will be individually provided to a plurality of customers including the customer (that is, the manufacturer or shop) of this modification.

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

Next, the user performs a measurement start operation (an 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 to take an address posture (basic posture before the start of the swing) from the user terminal 320, the user targets the longitudinal axis of the shaft of the golf club 3. Take the posture of the address so that it is perpendicular to the line (target direction of the hit ball) and stand still. The posture of the user shown in FIG. 2 is the address posture.

Next, after receiving a notification (for example, a voice notification) permitting the swing from the user terminal 320, the user performs a swing operation and hits the golf ball 4.

When the user performs the measurement start operation, the measurement start command is transmitted from the user terminal 320 to the sensor unit 10, the sensor unit 10 starts the measurement of the 3-axis acceleration and the 3-axis angular velocity, and the measured data (measurement data) is It is sequentially transmitted to the user terminal 320. After that, the user terminal 320 analyzes the swing motion based on the received measurement data, generates the swing analysis data, and transmits the swing analysis data to the server 300.

The swing operation by the user includes a halfway back in which the shaft of the golf club 3 becomes horizontal during the backswing after starting the swing (backswing), a top that switches from the backswing to the downswing, and a golf club during the downswing. It includes an operation leading to an impact (striking ball) of hitting the golf ball 4 through each state such as a halfway down in which the shaft of 3 becomes horizontal. Further, 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 attachment. Location information etc. are given.

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

The fitter then prompts the user to enter the user ID of the user who visited the shop or maker into the customer terminal 350.

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

After that, the diagnosis result is transmitted from the server 300 to the customer terminal 350 and displayed on the customer terminal 350. The diagnostic results in this variant include the 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 the 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 actually make a trial hit (swing) with one or more golf clubs picked up, and determines whether or not the golf club picked up fits the user.

If the fitter determines that the golf club picked up 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 try it out. By repeating this, the fitter searches for the club type that suits the user.

Then, 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 into the customer terminal 350. The input of fitting data by the fitter is performed, for example, by selecting (touching, clicking) the area to which the purchasing club type belongs.

As a result, fitting data indicating a 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), and the recommended club type and the purchased club type. If 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 the diagnostic table (an example of diagnostic criteria) in the server 300. The diagnostic table to be modified by feedback is a diagnostic table dedicated to the customer (shop or manufacturer) of this modification.

Therefore, in this modification, as the number of times the fitter uses the swing diagnostic system 1000 increases, the diagnostic table (an example of the customer's diagnostic criteria) dedicated to the customer (shop or manufacturer) is optimized (customized) and the swing is performed. The accuracy of diagnosis is improved. This means that the recommended club type is more likely to fit the user.

If the accuracy of the swing diagnosis is improved, the fitter belonging to the shop or manufacturer can shorten the time (time required for fitting) to find a golf club that fits the user, even if he / she is a beginner. Can be done. In this case, the time required for the user to purchase the golf club is also shortened.

Also, based on the recommended club type supported by the swing diagnostic system 1000, the fitter can perform the fitting with confidence even if he / she is inexperienced, which can give the user a sense of security.

Here, "combination of recommended club type and purchased club type" is used as fitting data, but instead of "purchased club type" or together with "purchased club type", "impression of fitter" and "depending on fitter" At least one of "pointing out", "improvement by fitter", etc. can be used.

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

Further, when the server 300 receives fitting data (combination of recommended club type and purchased club type) from the customer terminal 350, the server 300 feeds back the customer's diagnostic table in the direction in which the difference between the recommended club type and the purchased club type is reduced. Fix it.

Further, the server 300 adjusts the strength of the feedback correction (whether or not the feedback is corrected, the shift amount of the boundary position, the timing of the feedback correction, etc.) according to the reliability of the received fitting data.

Further, the server 300 estimates the reliability of the received fitting data based on the customer's fitting data, the user's swing analysis data, and the like.

In this way, the swing diagnostic system 1000 can be configured by a server administrator, a customer golf maker or golf equipment shop, 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. 51. FIG. 51 is a perspective view showing an example of a head-mounted display (HMD) as a motion analysis device.

1-7-1. Application example 1
As shown in FIG. 51, the head-mounted display (HMD) 500 has a spectacle body 501 mounted on the head of the user 2. The spectacle body 501 is provided with a display unit 502. The display unit 502 integrates the light flux emitted from the image display unit 503 into the light flux emitted from the outside world toward the eyes of the user 2, thereby superimposing the virtual image of the image display unit 503 on the real image of the outside world seen by the user 2.

The display unit 502 includes, for example, 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. , A shutter 508 and a convex lens 509 are provided.

The first beam splitter 504 is arranged in front of the left eye of the user 2 and partially transmits and partially reflects the light emitted from the image display unit 503. Further, the second beam splitter 505 is arranged 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 reflection mirror 506 is arranged 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. .. Further, the second concave reflection mirror 507 is arranged 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 the user 2's right eye. 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 has analysis information (see FIGS. 36A to 47) in a series of swing motions of the user 2 as shown in the display example described above, and a swing that approximates the swing motion. Swing information such as a locus (not shown) is displayed. Since the display contents are the same as those of the above-mentioned display examples and modifications, detailed description thereof will be omitted.

According to the above-mentioned head-mounted display (HMD) 500, since the display is performed by being attached to the head, the user 2 displays information such as analysis information of his / her swing and posture (position) information of the hand 2a. It is possible to check without holding the swing analysis device (motion analysis device) 20 or the like provided with the display unit 25.

The head-mounted display (HMD) 500 has a 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. It may be used as a display unit for displaying image data transmitted from. The functions of the swing analysis device (motion analysis device) 20 include 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. Including part 26.

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

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

In the device main body 610 of the analysis display device 600, the bottom case 613 is arranged on the side attached to the user 2, and the top case 611 is arranged 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 main body 610, and a glass plate 619 is provided as a top plate portion (outer wall) arranged inside the bezel 618 to protect the internal structure. There is. Further, on both sides of the bottom case 613, a pair of band mounting portions 617 which are connecting portions with the band portion 615 are provided.

The device main body 610 is provided with a display unit such as a liquid crystal display (LCD634) directly under the glass plate 619. The user 2 can browse the swing analysis information displayed on the liquid crystal display (LCD634) or the like, the posture information of the user 2's hand 2a, and the like via the glass plate 619. Further, the device main body 610 has 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, similarly to the swing analysis device 20 of the embodiment described above with reference to FIG. 26 can be included. The display unit 25 corresponds to a display unit such as the liquid crystal display (LCD634) of this example.

On the display unit of the liquid crystal display (LCD634), 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 locus that approximates the swing motion (see FIGS. 36A to 47). Swing information such as (not shown) is displayed. Since the display (presentation) content is the same as the display example described above, detailed description thereof will be omitted.

Further, on the display unit of the liquid crystal display (LCD634), other advice information based on the swing analysis result, for example, a text image showing the swing type of the user 2 and advice suitable for the swing type of the user 2 (practice method, etc.) are provided. A text image or the like may be displayed. Further, a moving image may be displayed as a video image on the display unit of the liquid crystal display (LCD634).

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 shown, but it is a transparent member capable of viewing the LCD 634, and is included inside 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 enough strength to 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-mounted type) analysis display device 600 described above, since the display is performed by being worn on the arm, the user 2 needs his / her swing information and the posture (position) information of the hand 2a. Information can be confirmed without holding the display unit (liquid crystal display (LCD634)) on which the information is displayed.

The wearable type (arm-mounted type) analysis display device 600 has the function of the swing analysis device 20 described above, and may perform swing analysis and display of swing information based on the measurement data of the sensor unit 10. It may be used as a display unit for displaying image data transmitted from the separate swing analysis device 20. The functions of the swing analysis device (motion analysis device) 20 include the processing unit 21 (an example of the 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. A unit 24, a display unit 25, and a sound output unit 26 are included.

The present invention includes substantially the same configurations as those described in the embodiments (eg, configurations with the same function, method and result, or configurations with the same purpose and effect). The present invention also 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. The present invention also includes a configuration in which a known technique is added to the configuration described in the embodiment.

1 ... Motion analysis system (swing analysis system), 2 ... User as a subject, 2a ... User's hand, 3 ... Golf club (exercise equipment), 3a ... Head, 4 ... Golf ball, 10 ... Sensor unit as an inertial sensor , 12 ... Acceleration sensor, 14 ... Angle speed 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 area image, 81A, 82A, 83A, 81B, 82B, 83B ... Time series area image, 90A ... Second area image, 92, 92a, 94, 94c ... Legend area (check box), DL1, DL2 ... Reference line, 210 ... Data acquisition unit, 211 ... Swing 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 ... Physical information, 246 ... Sensor mounting position information, 500 ... Head mount display (HMD), 600 ... Wearable type (arm-mounted type) analysis display device, 1000 ... Swing diagnostic system.

Claims (25)

A ball in each of the plurality of swings based on a plurality of data related to the plurality of swings attached to the user or an exercise device to which the user swings and output from an inertial sensor that measures the plurality of swings by the user. Generates first analysis information, including launch direction, ball bending , head speed, club path, and relative face angle .
When said first analysis information according to the launch direction of the ball, the first region image by plotting the first analysis information of the plurality of swing the head speed and the club path coordinate system whose axes To display
When said first analysis information according to the bending way of the balls, by plotting the first analysis information of the plurality of swing the head speed and the relative face angle in the coordinate system whose axes, said first Display the area image of
Display method. In claim 1,
A predetermined target area is displayed in the coordinate system.
Display method. In claim 1 or 2,
The first region image includes a plurality of time series region images showing variations in the first analysis information in the plurality of time series.
Display method. In claim 3,
The display form is different for each time-series area image.
Display method. In claim 3 or 4,
The area of the time-series region image is a size corresponding to the variation of the plurality of data related to the plurality of swings.
Display method. In any one of claims 1 to 5,
A second region image corresponding to the first region image and the first region image of a plurality of swings of a user other than the user are displayed in the coordinate system.
Display method. In claim 6,
The coordinate system is divided into a plurality of regions.
The ratio occupied by the second area image is displayed for each of the plurality of divided areas.
Display method. In claim 6 or 7,
The coordinate system is divided into a plurality of regions.
The ratio occupied by the first region image is displayed for each of the plurality of divided regions.
Display method. In any one of claims 1 to 8,
The trajectory of the flying ball from the launch position to the arrival position of the ball is displayed in the coordinate system.
Display method. In any one of claims 1 to 9,
Displaying diagnostic information based on the first region image,
Display method. In claim 10,
Display the practice method based on the diagnostic information.
Display method. A ball in each of the plurality of swings based on a plurality of data related to the plurality of swings attached to the user or an exercise device to which the user swings and output from an inertial sensor that measures the plurality of swings by the user. The first analysis information including the launch direction, how the ball bends, the head speed, the club path, and the relative face angle is generated, and when the first analysis information relates to the launch direction of the ball, the head speed. and displaying the first region image by plotting the first analysis information of the plurality of swinging the club path coordinate system with the axes, when the first analysis information according to the bending way of the ball , by plotting the first analysis information of the plurality of swing the head speed and the relative face angle in the coordinate system whose axes, and a display unit for displaying the first region image,
A swing analysis device equipped with. In claim 12,
A predetermined target area is displayed in the coordinate system.
Swing analyzer. In claim 12 or 13,
The first region image includes a plurality of time series region images showing variations in the first analysis information in the plurality of time series.
The plurality of time-series region images are displayed in the coordinate system.
Swing analyzer. In claim 14,
The display form is different for each time-series area image.
Swing analyzer. In claim 14 or 15,
The area of the time-series region image is a size corresponding to the variation of the plurality of data related to the plurality of swings.
Swing analyzer. In any one of claims 12 to 16,
A second region image corresponding to the first region image and the first region image of a plurality of swings of a user other than the user are displayed in the coordinate system.
Swing analyzer. In claim 17,
The coordinate system is divided into a plurality of regions.
The ratio occupied by the second area image is displayed for each of the plurality of divided areas.
Swing analyzer. In claim 17 or 18,
The coordinate system is divided into a plurality of regions.
The ratio occupied by the first region image is displayed for each of the plurality of divided regions.
Swing analyzer. In any one of claims 14 to 19 ,
The trajectory of the flying ball from the launch position to the arrival position of the ball is displayed in the coordinate system.
Swing analyzer. In any one of claims 12 to 20,
Displaying diagnostic information based on the first region image,
Swing analyzer. In claim 21,
Display the practice method based on the diagnostic information.
Swing analyzer. The swing analysis device according to any one of claims 12 to 22.
Inertia sensor and
Swing analysis system including. A ball in each of the plurality of swings based on a plurality of data related to the plurality of swings attached to the user or an exercise device to which the user swings and output from an inertial sensor that measures the plurality of swings by the user. The step of generating the first analysis information including the launch direction of the ball, how the ball bends, the head speed, the club path, and the relative face angle .
When said first analysis information according to the launch direction of the ball, the first region image by plotting the first analysis information of the plurality of swing the head speed and the club path coordinate system whose axes display, when said first analysis information according to the bending way of the balls, by plotting the first analysis information of the plurality of swing the head speed and the relative face angle in the coordinate system whose axes , The step of displaying the first area image, and
Let the computer run
Swing analysis program. A ball in each of the plurality of swings based on a plurality of data related to the plurality of swings attached to the user or an exercise device to which the user swings and output from an inertial sensor that measures the plurality of swings by the user. The step of generating the first analysis information including the launch direction of the ball, how the ball bends, the head speed, the club path, and the relative face angle .
When said first analysis information according to the launch direction of the ball, the first region image by plotting the first analysis information of the plurality of swing the head speed and the club path coordinate system whose axes display, when said first analysis information according to the bending way of the balls, by plotting the first analysis information of the plurality of swing the head speed and the relative face angle in the coordinate system whose axes The step of displaying the first area image and
Remembers the program that causes the computer to run
recoding media.