KR20140062184A - Behaviour measurement device and method for golf club head, and behaviour measurement device and method for batting implements - Google Patents

Abstract

Provided is a behavior measuring device and a movement measuring method which are advantageous in precisely measuring the motion of a golf club head or a striking tool while simplifying the configuration. The behavior data representing the behavior of the golf club head 4 is generated by using the transmitter 12, the golf club side three-dimensional magnetic sensor 14, and the holding side three-dimensional magnetic sensor 16. The transmitter 12 is provided at a predetermined position and generates a magnetic field that already knows the distribution about the intensity and direction. The golf club side three-dimensional magnetic sensor 14 is fixed to the golf club 2 and has a first measurement point 1402 and a first measurement direction 1404. The holding means side three-dimensional magnetic sensor 16 is integrally supported by the holding means 20 and has a second measuring point 1602 and a second measuring direction 1604. The holding means 20 sees the golf club 2 so as to follow the set lie angle and the loft angle.

Description

Field of the Invention < RTI ID = 0.0 > [0002] < / RTI > The present invention relates to a golf club head movement measuring apparatus and a movement measuring method,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motion measuring apparatus and a motion measuring method of a golf club head, a motion measuring apparatus and a motion measuring method of a hit ball.

As a technique for measuring the behavior of a golf club swung by a golfer, the following is provided.

In other words, the markers provided on the golf club head are continuously photographed at a constant time interval from the other directions in two directions, and feature points of the markers are extracted from the photographed images. Then, it has been proposed to calculate time-series data of the position and orientation of the three-dimensional shape model of the golf club head based on the extracted marker feature points (see Patent Document 1).

Further, a swing measuring method for measuring a moving path and a moving direction of a grip end by attaching a magnetic sensor to a grip portion of a golf club has been proposed (see Patent Document 2).

Patent Document 1: Japanese Patent Publication No. 4307511 Patent Document 2: Japanese Patent No. 3624761

However, in the latter technique, since the golf club head of the swing is photographed with, for example, two cameras, the measurement range is limited to an extremely limited area before and after impact during swing, I can not say enough.

In addition, since a golf club is photographed during a swing using a plurality of cameras, the facilities are large-scale, and a large installation space is required.

In the latter technique, the movement of the grip portion and the information of the side facing the shaft are obtained, and the behavior of the golf club head can not be measured, which is disadvantageous.

Furthermore, the same disadvantage can be conceived in the case of measuring the behavior by the same principle as that of the batting ball such as a baseball bat.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a golf club head movement measuring device and a movement measuring method which are advantageous in accurately measuring the behavior of the golf club head while simplifying the configuration And to provide a method.

It is also an object of the present invention to provide a behavior measuring device and a behavior measuring method which are advantageous in accurately measuring the behavior of the impact ball while simplifying the configuration.

In order to achieve the above object, the present invention provides a movement measuring device for a golf club head for measuring the behavior of a golf club head of the golf club when the golfer swings the golf club, and is provided at a predetermined position, A first measuring point fixed to the golf club and having a first measuring point and a first measuring direction, wherein the magnet around the first measuring point is a three-axis Dimensional golf club-side three-dimensional magnetic sensor for outputting a first detection signal in accordance with a three-dimensional position of the first measurement point with respect to a predetermined reference position and a direction toward the first measurement direction with respect to a predetermined reference direction, A sensor and a storage means in which a three-dimensional shape model reproducing the golf club head is stored in a three-dimensional coordinate system (coordinate system), and a set lie angle A holding means for holding the golf club so that the golf club head is held at a loft angle and a holding means for holding the golf club in a three dimensional First calibration means for acquiring, as first calibration data, position data indicating a direction in which the face of the golf club head faces the first measurement direction, Which is formed by the three-dimensional position data of the first measurement point with respect to the reference position generated based on the first detection signal and the direction data indicating the side facing the first measurement direction with respect to the reference direction, By using the first calibration data, the first time series data A first time-series data generating means for generating a first time-series data based on the three-dimensional position indicating a golf ball installation position at which the golf ball with respect to the reference position is installed, Second time series data generating means for generating second time series data by performing correction using second calibration data indicating a side toward a target line connecting a target point hitting the golf ball, And behavior data generating means for generating behavior data indicating the behavior of the golf club head based on the three-dimensional shape model of the golf club head.

Further, the present invention is a golf club head movement measuring apparatus for measuring the behavior of a golf club head of the golf club when the golfer swings the golf club, and is provided at a predetermined position, A golf club comprising: a transmitter which is fixed to the golf club and which has a first measuring point and a first measuring direction and which senses the magnetic field around the first measuring point in three mutually orthogonal directions, A three-dimensional coordinate system of a golf club side that outputs a first detection signal in accordance with a three-dimensional position of the first measurement point with respect to the reference position and a direction of the first measurement direction with respect to a predetermined reference direction, A storage means for storing a three-dimensional shape model reproducing the golf club head; Wherein the three-dimensional position data of the predetermined reference point of the golf club head with respect to the first measuring point and the three-dimensional position data of the golf club with respect to the first measuring direction, with the golf club being held in the holding means, A first calibration means for acquiring, as first calibration data, direction data indicating a face side of the head facing the golf club, By using the first calibration data, the actual measurement data including the three-dimensional position data of the first measurement point with respect to the reference direction and the direction data indicating the direction toward the first measurement direction with respect to the reference direction, A first time series data generating means for generating data, And a behavior data generating means for generating behavior data representing the behavior of the golf club head based on the three-dimensional shape model of the golf club head, wherein the reference position and the reference direction are determined by the transmitter Wherein the reference point is positioned at a predetermined position with respect to the reference position and the face of the golf club facing the reference direction faces a predetermined direction, Wherein the reference point corresponds to a predetermined position with respect to a golf ball mounting position at which the ball is installed and that the target line connecting the golf ball mounting position with respect to the reference direction and the target point hitting the golf ball faces And the face toward the face is directed in a predetermined direction The features.

Further, the present invention is a method for measuring the behavior of a golf club head measuring the behavior of a golf club head of the golf club when the golfer swings the golf club, and is provided at a predetermined position, A golf club comprising: a transmitter which is fixed to the golf club and which has a first measuring point and a first measuring direction and which senses the magnetic field around the first measuring point in three mutually orthogonal directions, A three-dimensional coordinate system of a golf club side that outputs a first detection signal in accordance with a three-dimensional position of the first measurement point with respect to the reference position and a direction of the first measurement direction with respect to a predetermined reference direction, A storage means for storing a three-dimensional shape model reproducing the golf club head; Wherein the golf club head is provided with a holding means for holding the golf club head in a state in which the golf club is held by the holding means and the three-dimensional position data of the predetermined reference point of the golf club head with respect to the first measuring point, A first calibration step of acquiring, as first calibration data, direction data indicating a face side of the golf club head facing the face of the golf club head; and a second calibration step of, when the golf club is swung by the golfer, The actual measurement data including the three-dimensional position data of the first measurement point with respect to the reference position and the direction data indicating the direction toward the first measurement direction with respect to the reference direction by using the first calibration data, A first time series data generation step of generating first time series data, The time series data is transmitted to the golf ball in a three-dimensional position indicating a golf ball installation position where the golf ball is installed with respect to the reference position and a target line connecting the golf ball installation position with respect to the reference direction and a target point A second time series data generating step of generating second time series data by correcting the second time series data by using second calibration data representing the second time series data, And a behavior data generating step of generating behavior data representing the behavior of the club head.

Further, the present invention is a method for measuring the behavior of a golf club head measuring the behavior of a golf club head of the golf club when the golfer swings the golf club, and is provided at a predetermined position, A golf club comprising: a transmitter which is fixed to the golf club and which has a first measuring point and a first measuring direction and which senses the magnetic field around the first measuring point in three mutually orthogonal directions, A three-dimensional coordinate system of a golf club side that outputs a first detection signal in accordance with a three-dimensional position of the first measurement point with respect to the reference position and a direction of the first measurement direction with respect to a predetermined reference direction, A storage means for storing a three-dimensional shape model reproducing the golf club head; Wherein the golf club head is provided with a holding means for holding the golf club head in a state in which the golf club is held by the holding means and the three-dimensional position data of the predetermined reference point of the golf club head with respect to the first measuring point, A first calibration step of acquiring, as first calibration data, direction data indicating a face side of the golf club head facing the face of the golf club head; and a second calibration step of, when the golf club is swung by the golfer, By using the first calibration data to correct the actual data including the three-dimensional position data of the first measurement point with respect to the reference position and the direction data indicating the direction toward the first measurement direction with respect to the reference direction, A first time series data generation step of generating first time series data, And a behavior data generating step of generating behavior data representing the behavior of the golf club head based on time series data and a three-dimensional shape model of the golf club head, wherein the reference position and the reference direction are determined by the transmitter Wherein the reference point is positioned at a predetermined position with respect to the reference position and the face of the golf club facing the reference direction faces a predetermined direction, Wherein the reference point is set at a predetermined position with respect to a golf ball mounting position at which the golf ball is installed and the face facing the target line connecting the golf ball mounting position with respect to the reference direction and the target point hitting the golf ball, The side facing the face is oriented in a predetermined direction .

Further, the present invention is a behavior measuring device for a hitting ball, which measures the behavior of the hitting ball when a player swings a batting ball striking a competition ball, is provided at a predetermined position, A sensor for detecting a magnetic field around the first measurement point in three axes directions perpendicular to each other with a first measurement point and a first measurement direction fixed to the impact port, And a striking-end-side three-dimensional magnetic sensor for outputting a first detection signal in accordance with a three-dimensional position of the first measurement point with respect to the position and a direction toward the first measurement direction with respect to a predetermined reference direction, A storing means for storing a three-dimensional shape model reproducing a hitting hole; a holding means for holding the hitting hole so as to be in a set position and direction; Dimensional position data of a predetermined reference point of the hit ball with respect to the first measurement point and direction data indicating a side toward which the hit ball is directed in the first measurement direction in a state in which the hit ball is held in the first measurement point, Dimensional position data of the first measurement point with respect to the reference position generated based on the first detection signal in the process of swinging the hit ball by the player, A first time series data generating means for generating first time series data by correcting actual measurement data consisting of direction data indicating a direction toward the first measurement direction with respect to a direction by using the first calibration data, 1 time-series data for a game in which a game ball is installed for the reference position Dimensional position indicating the ball mounting position and the second calibration data indicating the side toward the target line connecting the game ball mounting position with respect to the reference direction and the target point hitting the game ball A second time series data generating means for generating second time series data and behavior data generating means for generating the second time series data and behavior data indicating the behavior of the hit ball based on the three dimensional shape model of the hit ball .

The present invention also provides a method of measuring the behavior of a batting ball that measures the behavior of the batting ball when a player swings a batting ball that hits a ball for competition and is provided at a predetermined position, A sensor for detecting a magnetic field around the first measurement point in three axes directions perpendicular to each other with a first measurement point and a first measurement direction fixed to the impact port, And a striking-end-side three-dimensional magnetic sensor for outputting a first detection signal in accordance with a three-dimensional position of the first measurement point with respect to the position and a direction toward the first measurement direction with respect to a predetermined reference direction, A storage means in which a three-dimensional shape model reproducing a hitting hole is stored; and a holding means for holding the hitting hole so as to be in a set posture, Dimensional position data of a predetermined reference point of the hit ball with respect to the first measurement point and direction data indicating a face side of the hit ball with respect to the first measurement direction facing the first measurement point, Dimensional position data of the first measurement point with respect to the reference position generated based on the first detection signal in the process of swinging the hit ball by the player, A first time series data generating step of generating first time series data by correcting actual measurement data consisting of direction data indicating a direction toward the first measurement direction with respect to the reference direction using the first calibration data, The first time-series data is recorded on the basis of the first time- Dimensional position indicating the ball placement position for the competition and the second calibration data indicating the direction toward the target line connecting the ball placement position for the competition with the target point for hitting the competition ball with respect to the reference direction A second time series data generation step of generating second time series data by correcting the second time series data based on the second time series data and behavior data generating means for generating behavior data representing the behavior of the hit ball based on the second time series data, And a step.

According to the present invention, time-series data consisting of three-dimensional position data and direction data of a golf club head is obtained using a transmitter and a golf club side three-dimensional magnetic sensor, Based on the results, behavior data representing the behavior of the golf club head during swing was obtained.

Therefore, it is advantageous in accurately measuring the behavior of the golf club head while simplifying the configuration and reducing the space.

According to the present invention, the time-series data including the three-dimensional position data and the direction data of the golf club head is obtained using the transmitter and the three-dimensional magnetic sensor on the side of the hitting sphere, and also the time-series data and the three- Based on the results, behavior data representing the behavior of the impact ball during the swing was obtained.

Therefore, it is advantageous in accurately measuring the behavior of the impact ball while simplifying the structure and reducing the space.

Fig. 1 is a view for explaining a first calibration as well as showing the configuration of a golf club head behavior measuring apparatus 10 according to the first embodiment.
Fig. 2 is a view for explaining the second calibration.
Fig. 3 is an explanatory diagram for measuring the behavior of the golf club head.
4 is a plan view showing the state in which the face plate 402 of the golf club head 4 is in contact with the positioning plate 2008. Fig.
5 is a view seen from the direction A in Fig.
6 is a view seen from direction B in Fig.
7 is a block diagram showing the configuration of the measurement system 11.
Fig. 8 is a block diagram showing the configuration of the personal computer 22. Fig.
Fig. 9 is a functional block diagram of the behavior measuring device 10. Fig.
10 is an explanatory diagram of the left-right approach angle? _LR .
11 is an explanatory diagram of the up-and-down approach angle [theta] _UD .
12 is an explanatory diagram of the face angle [phi] at impact.
Fig. 13 is an explanatory diagram of a loft angle? At impact.
Fig. 14 is an explanatory diagram of the lie angle? During batting.
Fig. 15 is a flowchart showing the operation of the behavior measuring device 10. Fig.
16 is an explanatory diagram of a display screen showing the positions of the other points as the behavior data D3.
17 is an explanatory diagram of a display screen showing a movement locus in the vertical direction of the center point 410 of the face surface 402 as the behavior data D3.
18 is an explanatory diagram of a display screen showing the movement locus in the left-right direction of the center point 410 of the face surface 402 as the behavior data D3.
Fig. 19 is an explanatory diagram of a display screen on which animation data indicating the movement trajectory of the golf club head 4 as the behavior data D3 is displayed.
20 is a view for explaining the first calibration together with the configuration of the apparatus 10 for measuring the behavior of the golf club head in the second embodiment.
Fig. 21 is an explanatory diagram for measuring the behavior of the golf club head in the second embodiment. Fig.
22 is a functional block diagram of the behavior measuring device 10 according to the second embodiment.
23 is a flowchart showing the operation of the behavior measuring device 10 in the second embodiment.
24 is an explanatory view of a case in which the player hits the ball B placed on the tee 62 with the bat 64 in the third embodiment.
Fig. 25 is a view for explaining the first calibration together with the configuration of the bat movement measuring device 10A in the third embodiment. Fig.
26 is a view for explaining the second calibration.
Fig. 27 is an explanatory diagram when the behavior of the bat 64 is measured.
Fig. 28 is a view of the state in which the batting surface 6404 of the bat 64 is in contact with the positioning plate 6612 as viewed from the direction A1 in Fig.
29 is a view seen from the direction of B1 in Fig.
30 is a view seen from the C1 direction in Fig.
31 is a block diagram showing the configuration of the measurement system 11;
32 is a block diagram showing the configuration of the personal computer 22;
33 is a functional block diagram of the behavior measuring device 10A.
34 is a flowchart showing the operation of the behavior measuring device 10A.

(Embodiment 1)

Hereinafter, a method of measuring the behavior of the golf club head together with the apparatus for measuring the movement of the golf club head according to the embodiment of the present invention will be described with reference to the drawings.

1 is an explanatory view showing a configuration of a golf club head behavior measuring device 10 (hereinafter referred to as a behavior measuring device 10).

1, the behavior measuring device 10 is used, for example, in a golf driving range or a golf shop. The behavior measuring device 10 includes a measuring system 11, 20, and a personal computer 22. [

(Measurement system 11)

The measurement system 11 measures time series data indicating the three-dimensional position and the direction (direction) of the golf club head 4 of the golf club 2.

In this embodiment, the measurement system 11 includes a transmitter 12, a golf club side three-dimensional magnetic sensor 14, a holding means side three-dimensional magnetic sensor 16, a controller / data processing device 18, .

The transmitter 12 is provided at a predetermined position. As shown in FIG. 7, the transmitter 12 has a loop loop in three mutually orthogonal axes (X axis, Y axis, Z axis) And is constituted by three coils wound in an up-and-down direction.

In the present embodiment, the transmitter 12 is provided such that the X axis and the Y axis extend in a horizontal plane (upper direction) and the Z axis is directed in the vertical direction.

In the present embodiment, the center position of the transmitter 12 is defined as a predetermined reference position 1202, and the Y-axis direction passing through the reference position 1202 is defined as a predetermined reference direction 1204. [

The transmitter 12 generates a magnetic field that already knows the distribution about intensity and direction by the drive signal supplied from the controller / data processing device 18. [

The golf club side three-dimensional magnetic sensor 14 is constituted by three coils wound in a loop shape in three mutually orthogonal axes (X axis, Y axis, Z axis) as shown in Fig. 7 .

The golf club side three-dimensional magnetic sensor 14 has a first measurement point 1402 and a first measurement direction 1404.

The golf club side three-dimensional magnetic sensor 14 senses the magnetic force around the first measurement point 1402 in three axial directions of the X axis, the Y axis, and the Z axis orthogonal to each other, And outputs the first detection signal S1 in accordance with the three-dimensional position of the first measurement point 1402 and the direction toward the first measurement direction 1404 with respect to the reference direction 1204. [

In this embodiment, the first measurement point 1402 is the center position of the golf club side three-dimensional magnetic sensor 14, and the first measurement direction 1404 is the Y axis direction passing through the first measurement point 1402.

The golf club side three-dimensional magnetic sensor 14 is fixed to the golf club 2 and is fixed to the grip portion 3 of the golf club 2 in this embodiment.

In the present embodiment, the golf club side three-dimensional magnetic sensor 14 has the Y axis (the first measurement direction 1404) parallel to the striking direction of the golf club 2, and also the Z axis parallel to the shaft axis have.

7, the holding means side three-dimensional magnetic sensor 16 is constituted by three coils wound in a loop shape in three mutually orthogonal axes (X axis, Y axis and Z axis) .

The holding means side three-dimensional magnetic sensor 16 has a second measuring point 1602 and a second measuring direction 1604.

The holding means side three-dimensional magnetic sensor 16 senses the magnetic force around the second measurement point 1602 in three axes directions of X-axis, Y-axis and Z-axis orthogonal to each other, The Y axis is directed toward the striking direction of the golf club 2 and the three dimensional position of the second measurement point 1602 with respect to the reference position 1202 and the second measurement direction 1604 with respect to the reference direction 1204 And outputs the second detection signal S2.

In the present embodiment, the second measurement point 1602 is the center position of the holding means side three-dimensional magnetic sensor 16, and the second measurement direction 1604 is the Y axis direction passing through the second measurement point 1602. [

The holding means side three-dimensional magnetic sensor 16 is integrally supported by the holding means 20.

In the present embodiment, the holding means side three-dimensional magnetic sensor 16 is arranged so that the Y axis (second measurement direction 1604) is parallel to the striking direction of the golf club 2 as will be described later, Direction.

As such a measurement system 11, for example, LIBERTY (manufactured by Polhemus) can be mentioned.

In addition, the detailed configuration of the measurement system 11 will be described later.

(Holding means 20)

The holding means 20 holds the golf club 2 so that the rake and the loft angle become equal to each other.

The holding means 20 includes a base 2002, a frame 2004, a supporting portion 2006, and a positioning plate 2008 as shown in Fig.

The base 2002 is placed on a bottom surface (horizontal surface).

The frame 2004 is erected from the base 2002.

The support portion 2006 is provided on the frame 2004 so as to allow the shaft 6 of the golf club 2 to be attached and detached and to adjustably support the side facing the position of the golf club 2 will be. As the support portion 2006, various structures known in the art can be used.

4 is a plan view showing a state in which the face plate 402 of the golf club head 4 touches the positioning plate 2008, Fig. 5 is a view seen from the direction A in Fig. 4, Fig. 6 is a view from the direction B in Fig. Fig.

As shown in Figs. 4 to 6, the positioning plate 2008 is a rectangular plate, and is provided on the base 2002 to extend on the horizontal plane through a spacer 2010 ). Incidentally, in Fig. 5, reference symbol G denotes a bottom surface.

The positioning plate 2008 is formed in a straight line shape so that an edge portion 2008A having an acute angle in section on one side thereof is parallel to the horizontal plane.

The positioning plate 2008 has a reference line 2012 passing through the center of the extending direction of the edge portion 2008A on the upper surface thereof (upper surface) and perpendicular to the edge portion 2008A.

On the upper surface of the positioning plate 2008, a holding means side three-dimensional magnetic sensor 16 is provided.

The second measurement point 1602 is positioned on the reference line 2012 and the second measurement direction 1604 is aligned with (parallel to) the reference line 2012. In this state, .

The golf club 2 is set so that the face surface 402 is in contact with the edge portion 2008A so that the edge portion 2008A passes the center point 410 of the face surface 402, (2006).

In the present embodiment, the fact that the golf club 2 is in the set rake angle and the loft angle means that the normal line of the face surface 402 and the ejection direction are parallel to each other, And the angle formed by the shaft axes is a right angle.

When the score line 412 is formed on the face surface 402 and the golf club 2 is supported by the support portion 2006 in accordance with the set lie angle of the score line 412 or the score line 412 as shown in FIG. The extension line thereof and the edge portion 2008A are parallel to each other.

Thus, by adjusting the support portion 2006 so that the score line 412 and the edge portion 2008A are parallel to each other, the golf club 2 can be supported at the set lie angle.

In the case where a score line 412 is not formed on the face surface 402 as in some putter clubs, a virtual line extending in the left-right width direction of the face surface 402 and an edge portion 2008A The golf club 2 can be supported at the set lie angle by adjusting the support portion 2006 to be parallel.

In this way, the three-dimensional position of the center point 410 of the face surface 402 and the side facing the face surface 402 and the side of the holding means 3 The second measurement point 1602 of the dimension magnetic sensor 16 and the direction toward the second measurement direction are already known.

The three-dimensional position of the center point 410 of the face face 402 and the side facing the face face 402 can be obtained from the side facing the second measurement point 1602 and the second measurement direction 1604.

(Details of the measurement system 11)

The measuring system 11 will be described in more detail.

As shown in Fig. 7, the controller / data processing device 18 has a drive circuit 18A, a detection circuit 18B, and a computer 18C.

The drive circuit 18A generates drive signals for sequentially generating predetermined three kinds of magnetic fields in the transmitter 12 and supplies the drive signals to the transmitter 12. [

The detection circuit 18B detects the first detection signal S1 supplied from the golf club side three-dimensional magnetic sensor 14 and the second detection signal S2 supplied from the holding means side three-dimensional magnetic sensor 16 .

The computer 18C implements the following functions by executing data processing software.

That is, the computer 18C controls the drive circuit 18A and the detection circuit 18B, performs data processing from the output voltage obtained from the detection circuit 18B, and controls the position of the golf club side three-dimensional magnetic sensor 14 And the direction toward the position of the three-dimensional magnetic sensor 16 on the side of the holding means.

The computer 18C sets the position of the transmitter 12 to the reference position 1202 and sets three-dimensional position coordinates (x, y, z) based on three mutually orthogonal axes (X, Y, Z) z) is calculated and output.

The computer 18C has the Y-axis direction centering on the transmitter 12 as the reference direction 1204 as described above and the direction in which the magnetic sensors 14 and 16 face the reference direction 1204 (Expressed as (? Y,? P,? R)) of yaw angle, pitch angle, and roll angle

Therefore, the time series data of the three-dimensional position coordinates (x, y, z) are data indicating the positions of the magnetic sensors 14 and 16 and the time series data of the yaw angle? Y, pitch angle? P, Is the data indicating the direction toward which the magnetic sensors 14 and 16 are directed.

Next, the three-dimensional position coordinates (x, y, z) of the first measurement point 1402 of the golf club side three-dimensional magnetic sensor sensor 14 with respect to the reference position 1202 and the three- Generation of time series data of attitude angles? Y,? P, and? R with respect to the reference direction 1204 will be described.

The driving circuit 18A outputs the same signal whose frequency and phase are constantly constant in accordance with the command signal of the computer 18C and three loop-shaped coils wound in three axial directions of the transmitter 12 are sequentially energized )do.

Each loop-type coil generates a different magnetic field for each excitation, and based on this, generates independent output voltages (V) to the three loop-type coils wound in three axial directions of the golf club side three-dimensional magnetic sensor 14 .

This output voltage V is generated by three outputs of the three loops of the golf club side three-dimensional magnetic sensor 14, which are generated by three loop coils of the transmitter 12, Since the voltage V is obtained, a total of nine (3 x 3) output voltages V are obtained.

The distribution of the intensity and direction of the generated magnetic field is the same as the reference position 1202 in which the transmitter 12 is installed and the reference direction 1204 in which the transmitter 12 is installed. ≪ / RTI >

(X, y, z) of the golf club side three-dimensional magnetic sensor 14 with respect to the reference room position 1202 by using nine output voltages V generated by the magnetic field formed by the magnetic field generating unit 1202. [ And the posture angles? Y,? P, and? R with respect to the reference direction 1204 can be obtained.

Dimensional coordinates (x, y, z) and attitude angle (x, y, z) using the nine output voltages V sent from the detection circuit 18B in the computer 18C of the controller / data processing device 18. [ ? y,? p, and? r) are calculated and found.

The three-dimensional position coordinates (x, y, z) and the attitude angles? Y,? P,? R obtained in the measurement system 11 are received by the personal computer 22 and AD converted, Time series data of the behavior can be obtained.

The three-dimensional positional coordinates (x, y, z) of the second measuring point 1602 of the holding means side three-dimensional magnetic sensor 16 with respect to the reference room position 1202 and the reference of the second measuring direction 1604 The generation of the data of the attitude angles? Y,? P,? R with respect to the direction 1204 is basically the same as that in the case of the golf club side three-dimensional magnetic sensor 14, and a description thereof will be omitted.

In addition, as described above, the transmitter 12, the golf club side three-dimensional magnetic sensor 14, and the holding means side three-dimensional magnetic sensor 16, as shown in Fig. 7, The coil is wound in a loop shape.

Therefore, the three-axis directions of the transmitters 12 and the magnetic sensors 14 and 16 as much as possible are determined by the three-dimensional position coordinates (x, y, z) detected by the respective magnetic sensors 14 and 16 It is preferable to reduce the load when performing the processing of the attitude angles? Y,? P, and? R in the personal computer 22 to be described later.

From this point of view, the golf club side three-dimensional magnetic sensor 14 is set so that one axis (Z axis) of the three axis directions coincides with the shaft axis and the other axis (Y axis) 2 to the grip portion 3 of the golf club 2 with the golf club 2 facing the striking direction.

The holding means side three-dimensional magnetic sensor 16 preferably supports one of the three axial directions (Y axis) toward the striking direction of the golf club 2 and supports the holding means 20.

In the present embodiment, the transmitter 12 extends in the horizontal plane of the X axis and the Y axis, and extends in the vertical direction of the Z axis.

(Personal computer 22)

Next, the personal computer 22 will be described.

The personal computer 22 generates behavior data representing the behavior of the golf club head 2 on the basis of the time series data supplied from the measurement system 11.

Fig. 8 is a block diagram showing the configuration of the personal computer 22. Fig.

The personal computer 22 includes a CPU 30 and a ROM 32, a RAM 34, a hard disk device 36, and a disk device 38 (not shown) connected via an interface circuit and a bus line A keyboard 40, a mouse 42, a display 44, a printer 46, an input / output interface 48, and the like.

The ROM 32 stores a control program and the like, and the RAM 34 provides a working area.

The hard disc device 36 stores a dedicated program for performing the measurement of the behavior of the golf club head 4.

The disk device 38 is for recording and / or reproducing data to / from a recording medium such as a CD or a DVD.

The keyboard 40 and the mouse 42 accept the operation input by the operator.

The display 44 is for displaying and outputting data, and the printer 46 is for printing out the data, and outputs data by the display 44 and the printer 46.

The input / output interface 48 is for exchanging data with the controller / data processing device 18 of the measurement system 11.

(The function of the behavior measuring device 10)

Fig. 9 is a functional block diagram of the behavior measuring device 10. Fig.

The behavior measuring device 10 functionally includes a first calibration means 50, a second calibration means 52, a first time series data generation means 53, a second time series data generation means 54, (56), behavior data generation means (58), output means (60), and the like.

The first calibration means 50, the second calibration means 52, the first time series data generation means 53 and the second time series data generation means 54 are connected to the controller / data processing unit 18 and the personal computer 22 ).

The storage means 56, the behavior data generation means 58 and the output means 60 are constituted by the personal computer 22. [

A part of the first and second calibration means 50 and 52 and a part of the first and second time series data generation means 53 and 54 and the behavior data generation means 58 and the output means 60, Is realized by the CPU 30 executing the dedicated program, but these parts may be constituted by hardware such as a circuit.

Before describing each of the means 50, 52, 53, 54, 56, 58, 60, the positional relationship of the transmitter 12, the golf club 2, and the golf ball B is described.

As shown in Fig. 3, the transmitter 12 is provided at a predetermined position, and more specifically, fixedly arranged on the rear side of a golfer swinging person.

A ball mount position P0 for placing the golf ball B is predetermined on the bottom surface G and the ball mount position P0 is indicated by a mark or the like provided on the bottom surface G. [ Alternatively, a tee is provided at the ball placement position P0, and the golf ball B is placed on the tee.

A cup C as a target for driving the golf ball B is provided in front of the ball mounting position P0.

The golfer swings the golf club 2 to face the golf ball B placed on the ball placement position P0 by the face surface 402 of the golf club head 4 toward the cup C It drives.

In this case, a straight line connecting the center point P1 (Fig. 10) of the golf ball B placed at the ball mounting position P0 with the cup C is the target line L. [

In addition, when the golfer swings the golf club 2, sufficient clearance is secured between the transmitter 12 and the ball mounting position P0 so that the transmitter 12 does not interfere with the golfer or the golf club 2 .

1, the first calibration means 50 is provided with a first detection signal S1 and a second detection signal S2 in a state where the golf club 2 is held in the holding means 20. [ Dimensional position data of the center point 410 (Fig. 6) of the face surface 402, which is a predetermined reference point of the golf club head 4 with respect to the first measuring point 1402, As the first calibration data Dc1, the direction data indicating the face side 402 of the golf club head 4 facing the golf club head 4. [

In other words, the three-dimensional position data of the center point 410 of the face surface 402 is data that can obtain the first measurement point 1402 as the origin of the three-dimensional coordinates, and the direction data of the face surface 402 is 1 Measurement data 1404 can be obtained as a coordinate axis (Y axis) of three-dimensional coordinates.

That is, based on the first detection signal S1 and the second detection signal S2, three-dimensional position data of the second measurement point 1602 with respect to the first measurement point 1402 and three-dimensional position data of the second measurement point 1602 with respect to the first measurement direction 1404 The direction data of the second measurement direction 1604 with respect to the facing side is obtained.

Here, as described above, the three-dimensional position of the center point 410 of the face surface 402 from the side facing the second measurement point 1602 and the second measurement direction 1604, and the side facing the face surface 402 .

Therefore, the three-dimensional position data of the center point 410 of the face surface 402 with respect to the first measurement point 1402 and the three-dimensional position data of the center point 410 with respect to the first measurement point 1402 based on the first detection signal S1 and the second detection signal S2 Direction data of the face surface 402 with respect to the side to which the first calibration data 1404 is directed can be obtained as the first calibration data Dc1.

The first calibration data Dc1 is used to correct the position of the center point 410 of the face surface 402 with respect to the first measurement point 1402 and to correct the position of the center point 410 of the face surface 402 toward the first measurement direction 1404. [ (Direction) to which the light beam is directed.

4 and 5, the second calibration means 52 has a second measurement point 1602 at the center of the golf ball B positioned at the ball placement position P0 And the holding means 20 is positioned on the floor so that the side facing the second measuring direction 1604 is aligned with the side facing the target line L. In this state, Dimensional position data of the second measurement point 1602 with respect to the reference position 1202 and direction data indicating the direction of the second measurement direction 1604 with respect to the reference direction 1204 based on the three- 2 calibration data Dc2.

In other words, the three-dimensional position data of the second measurement point 1602 is data in which the reference position 1202 is obtained as the origin of the three-dimensional coordinate, and the direction data of the second measurement direction 1604 is data in the reference direction 1204 (Y-axis) of the three-dimensional coordinates.

That is, the second calibration data Dc2 is used to correct the mounting position of the golf ball B with respect to the reference position 1202 and to correct the direction toward the target line L with respect to the reference direction 1204 ≪ / RTI >

The first time series data generating means 53 generates the first time series data 1402 for the reference position 1202 generated based on the first detection signal S1 in the process of swinging the golf club 2 by the golfer, By using the first calibration data Dc1 to correct the actual data consisting of the three-dimensional position data of the reference direction 1204 and the direction data indicating the direction toward the first measurement direction 1404 with respect to the reference direction 1204, And generates data D1.

The second time series data generation means 54 generates the second time series data D2 by correcting the first time series data D1 using the second calibration data Dc2.

The storage means 56 stores the three-dimensional shape model M reproduced by the head of the golf club 2 in the three-dimensional coordinate system.

In other words, the storage means 56 stores the three-dimensional shape model M in association with the three-dimensional position of the center point 410 of the face surface 402 and the side to which the face surface 402 is directed.

In the present embodiment, the loft angle of the golf club head 4 and the diameter of the golf ball B are registered in advance in the storage means 56.

In the present embodiment, the storage means 56 is constituted by the hard disk device 36 or the RAM 34 of the personal computer 22.

The behavior data generating means 58 generates the behavior data D3 representing the behavior of the golf club head 4 based on the second time series data D2 and the three dimensional shape model M of the golf club 2 head, .

In the present embodiment, the behavior data generation means 58 includes a calculation section 58A for calculating the time-series data of the position and the direction of the three-dimensional shape model M, and the behavior data D3 And an analysis unit 58B.

Here, the behavior data D3 will be further described.

In the present embodiment, the behavior data D3 includes the following data.

(1) Movement locus data as time-series data representing the locus of movement of the golf club head 4:

The movement locus data may be represented by the movement locus of the center point 410 of the face surface 402 as described later (Figs. 17 and 18), or the animation locus data representing the outer shape of the golf club head 4 19).

(2) Left and right approach angle (θ _LR ):

10, when the movement locus T of the center point 410 of the face surface 402 and the target line L are projected on the horizontal plane, the left and right entry angles? _LR , Refers to the angle formed by the movement trajectory T and the target line L. [ Incidentally, in the figure, the arrow F shows the moving direction of the golf club head 4. [

(3) Up-and-down angle (θ _UD ):

As shown in Fig. 11, the upper and lower entry angles [Theta] _UD are set so that the movement locus T of the center point 410 of the face surface 402 and the target line L are located on a vertical plane parallel to the target line L Refers to the angle formed by the movement locus T and the target line L on the vertical plane when projected.

(4) Direction data Df indicating the side on which the golf club head 4 is facing immediately before the face surface 402 hits the golf ball B:

In the present embodiment, the direction data Df includes a face angle phi when striking, a loft angle alpha when striking, and a stroke when striking.

Hereinafter, this will be described with reference to Figs. 12, 13, and 14. Fig.

(4-1) As shown in Fig. 12, the face angle [phi] when striking the face surface 402 is the center point 410 of the face surface 402 immediately before striking the golf ball B, And the angle formed by the normal line H and the target line L on the horizontal plane when the normal line H and the target line L passing through the line L are projected on the horizontal plane.

(4-2) The batting loft angle alpha is set such that the face surface 402 is located at the center point 410 of the face surface 402 immediately before striking the golf ball B, And the horizontal plane (the bottom plane G) intersecting the normal line H and the plane parallel to the normal plane H (the bottom plane G).

Here, the generation of the loft angle [alpha] at the time of the striking by the behavior data generation means 58 is carried out based on the second time series data D2 and the loft angle of the golf club head 4 registered in advance in the storage means 56 .

(4-3) As shown in Fig. 14, the rake angle beta at the time of hitting is defined by the extension line of the shaft shaft 602 immediately before the face surface 402 strikes the golf ball B, (The bottom surface G in this example) where the extension lines intersect with each other.

(5) Raw point position data indicating a position where the face surface 402 touches the golf ball B:

The generation of the other spot position data by the behavior data generation means 58 is performed by the second time series data D2, the three-dimensional shape model M and the golf ball B ). ≪ / RTI >

(action)

Next, the operation of the behavior measuring device 10 will be described with reference to the flowchart of Fig.

In addition, the transmitter 12 is fixed at a predetermined position in advance.

First, as shown in Fig. 1 and Fig. 4 to Fig. 6, the golf club 2 to be measured is held in the holding means 20 so as to be the set rake and the loft angle (step S10: ).

Next, in a state where the holding means 20 holds the golf club 2 in the enemy (at an appropriate position), the measurement system 11 and the personal computer 22 are started and the first calibration is executed S12: first calibration step).

That is, the first calibration means 50 calculates the third point of the center point 410 of the face surface 402 with respect to the first measurement point 1402 based on the first detection signal S1 and the second detection signal S2, Dimensional position data and direction data indicating the face side 402 of the golf club head 4 facing the first measurement direction 1404 as the first calibration data Dc1.

Here, it is desirable to shorten the distance between the transmitter 12, the three-dimensional magnetic sensor 14 on the golf club side, and the three-dimensional magnetic sensor 16 on the holding means side.

The reason is that as the distance between the transmitter 12 and the magnetic sensors 14 and 16 is shortened, measurement in an area having a high magnetic flux density becomes possible and it is advantageous in securing accuracy (precision).

2, after the golf club head 2 is detached from the holding means 20, the holding means 20 is moved from the position (P0) to the target position L And placed on the floor G (step S14: holding means positioning step).

4 and 5, the second measurement point 1602 of the three-dimensional magnetic sensor 16 on the holding means side is in the state of being viewed from the plane of the golf ball B The holding means 20 is positioned such that the second measuring direction 1604 agrees with the center point P1 of the target measurement line 160 and the second measurement direction 1604 coincides with the target line L.

In step S14, the holding means 20 positioned in the vicinity of the transmitter 12 is moved to the ball mounting position P0 spaced from the transmitter 12 in step S10.

Next, the second calibration means 52 calculates the three-dimensional position data of the second measurement point 1602 with respect to the reference position 1202 and the three-dimensional position data of the reference position 1204 based on the second detection signal S2, As the second calibration data Dc2 (step S16: second calibration step).

In other words, the second calibration data Dc2 is the second calibration data Dc2 in the state in which the holding means 20 is moved to the ball mounting position P0 (when the second measuring point 1602 coincides with the ball mounting position P0, Dimensional position and direction of the holding means side three-dimensional magnetic sensor 16 with respect to the transmitter 12 (in a state in which the measurement direction 1604 coincides with the target line L).

When the step S16 is finished, the holding means 20 is moved from the ball mounting position P0 to a position where the swing of the golf club 2 is not obstructed.

Next, as shown in Fig. 3, the golf ball B is placed at the ball placement position P0, and the golfer swings the golf club 2 to direct the golf ball B toward the cup C It drives.

Then, in the course of the swing, the first time series data generation means 53 corrects the actual data generated based on the first detection signal S1 by using the first calibration data Dc1 And generates the first time series data D1 (step S18: first time series data generation step).

That is, by correcting the measured data with the first calibration data Dc1, the three-dimensional position data of the center point 410 of the face surface 402 with respect to the transmitter 12 and the three- The first time series data D2 is generated.

However, since the first time series data D1 is not corrected for the ball placement position P0 and the target line L, the first time series data D1 is not yet accurate.

Next, the second time series data generation means 54 generates the second time series data D2 by correcting the first time series data D1 using the second calibration data Dc2 (Step S20: Second time series data generation step).

That is, by correcting the first time series data D1 using the second calibration data Dc2, accurate second time series data D2, which is corrected with respect to the ball placement position P0 and the target line L, Is obtained.

Subsequently, the behavior data generating means 58 generates the behavior data of the golf club head 2 based on the second time series data D2 and the three-dimensional shape model M of the golf club head read from the storage means 56 And generates behavior data D3 indicating the behavior (step S22: behavior data generation step).

That is, the behavior data generation means 58 generates the behavior data based on the time-series data consisting of the three-dimensional position data of the center point 410 of the face surface 402 obtained in Step S20 and the direction data indicating the side facing the face surface 402 The behavior data D3 is generated by moving the three-dimensional shape model M in the virtual space.

Subsequently, the output means 60 outputs the behavior data D3 (step S24: output step).

That is, the output means 60 displays the behavior data D3 as a display screen of the display 44 or prints the behavior data D3 by the printer 46. [

Incidentally, regarding the golf club 2 to be used, once the first and second calibration are performed, the processes of steps S10, S12, S14, and S16 may be omitted, and the process after step S18 may be performed.

When the ball placement position P0 or the target line L is changed, the processing of steps S10 and S12 may be omitted, and only the processing after S14 may be performed.

Next, the display screen of the display 44 representing the behavior data D3 will be described in detail.

16 is an explanatory diagram of a display screen showing the positions of the other points as the behavior data D3.

As shown in Fig. 16, the rattling point position 420 is marked on the face surface 402 of the golf club head 4 as a mark.

When a plurality of measurements are performed, the number of marks corresponding to the number of times of measurement is displayed.

17 is an explanatory diagram of a display screen showing the movement locus in the vertical direction of the center point 410 of the face surface 402 of the face surface 402 as the behavior data D3.

17, the abscissa indicates the distance along the ejection direction of the golf ball B, and the abscissa indicates the distance in the height direction.

The center point 410 of the face surface 402 of the face surface 402 of the golf club head 4 is shown as a mark (e.g., a circle).

18 is an explanatory diagram of a display screen showing the movement locus in the left-right direction of the center point 410 of the face surface 402 of the face surface 402 as the behavior data D3.

18, the abscissa indicates the distance along the ejection direction of the golf ball B, and the ordinate indicates the distance in the left-right direction orthogonal to the ejection direction of the golf ball B.

17, the center point 410 of the face surface 402 of the face surface 402 of the golf club head 4 is shown by a mark (for example, a circle).

17 and 18 show measurement results of one measurement, when the measurement is performed a plurality of times, if the color or shape of the mark showing the center point 410 of the face surface 402 is changed, In order to simplify identification.

Fig. 19 is an explanatory diagram of a display screen showing the movement trajectory of the golf club head 4 as the behavior data D3.

As shown in FIG. 19, the movement trajectory of the golf club head 4 is shown by displaying a plurality of perspective view images of the golf club head 4 in a superimposed manner.

It goes without saying that the display screen shown in Figs. 16 to 19 may be printed out by the printer 46. Fig.

The movement trajectory of the golf club head 4 may be displayed as an animated image by displaying the images of the perspective view of the golf club head 4 one by one with the lapse of time.

19 shows a case in which the golf club head 4 is displayed with an animated image in a state where the golf club head 4 is viewed obliquely from the forward direction of the moving direction of the golf club head 4. However, when the golf club head 4 is rotated in the other direction ), And the display method is arbitrary.

Further, the behavior the left and right entry as data (D3) each (θ _LR), upper and lower entry numbers and the like of various (θ _UD), Striking face angle (φ), Striking loft angle (α), Striking Lai each (β) Can be displayed on the display screen of the display 44 or printed out by the printer 46 in a tabular format.

According to this embodiment, by using the transmitter 12 and the golf club side three-dimensional magnetic sensor 14, it is possible to obtain the second time series data D2 composed of the three-dimensional position data and the direction data of the golf club head 4 Together with the second time series data D2 and the three-dimensional shape model M of the golf club head 4, the behavior data D3 indicating the behavior of the golf club head 4 during swing was obtained.

Therefore, it is unnecessary to provide an imaging device such as a camera as compared with a technique using conventional image data, and there is no need to secure an imaging space. Therefore, while simplifying the configuration, saving space, It is advantageous in accurately measuring the behavior of the head 4.

Further, the measurement range of the golf club head 4 can be secured as compared with the technique using the conventional image data, and measurement can be performed throughout the swing.

In this embodiment, the actual data generated based on the first detection signal S1 detected by the golf club side three-dimensional magnetic sensor 14 is corrected using the first calibration data Dc1 The second time series data D2 is generated by generating the first time series data D1 and correcting the first time series data D1 by using the second calibration data Dc2.

That is, by correcting the first time series data D1 using the second calibration data Dc2, accurate second time series data D2, which is corrected with respect to the ball placement position P0 and the target line L, .

Therefore, when the ball placement position P0 or the target line L is changed, accurate second time series data D2 can be obtained by acquiring the second calibration data Dc2 again.

Therefore, since it is advantageous in securing the degree of freedom of changing the installation layout of the golf club 2, the transmitter 12, and the holding means 20, the movement of the golf club head 4 Measurement can be performed. In addition, it can be easily installed even in a place where it is liable to be limited in layout, such as an actual golf driving range.

By positioning the golf club side three-dimensional magnetic sensor 14 and the holding means side three-dimensional magnetic sensor 16 at positions close to the transmitter 12, the first calibration data Dc1 can be obtained to a high degree And is advantageous in increasing the degree of the behavior data D3.

In this embodiment, the case where the second calibration data Dc2 is obtained by using the holding means side three-dimensional magnetic sensor 16 has been described.

However, it is also possible to provide a three-dimensional magnetic sensor for measuring the ball position separately from the holding means-side three-dimensional magnetic sensor 16 and to obtain the second calibration data Dc2 using the three-dimensional magnetic sensor for measuring the ball position Do.

That is, the three-dimensional magnetic sensor for measuring a ball position has a third measuring point and a third measuring direction, and detects magnetism around the third measuring point in three axial directions orthogonal to each other, And outputs the third detection signal in accordance with the three-dimensional position of the measurement point and the direction toward the third measurement direction with respect to the reference direction.

The third measuring point coincides with the predetermined ball mounting position P0 and the third measuring direction is directed to the target line P0 connecting the ball mounting position P0 and the target point of the golf ball L of the three-dimensional magnetic sensor for measuring the ball position.

In this state, the second calibration means 52 calculates, based on the third detection signal, the three-dimensional position data of the third measurement point with respect to the reference position 1202 and the third measurement direction with respect to the reference direction 1204 Direction data indicating the direction of the second calibration data Dc2 is acquired as the second calibration data Dc2.

As described above, the three-dimensional magnetic sensor for measuring the ball position may be provided separately from the holding means-side three-dimensional magnetic sensor 16. However, as in the present embodiment, the three- When the second calibration data Dc2 is obtained by using the three-dimensional magnetic sensor for ball position measurement, in other words, by using the three-dimensional magnetic sensor for ball position measurement by the three-dimensional magnetic sensor 16 on the holding means side, .

In this embodiment, the golf club side three-dimensional magnetic sensor 14 is provided on the grip portion 3 of the golf club 2, but the golf club side three-dimensional magnetic sensor 14 is provided on the golf club head 6 It may be installed.

However, when the golf club side three-dimensional magnetic sensor 14 is mounted on the grip portion 3 as in the present embodiment, the golf club side three-dimensional magnetic sensor 14 is not conspicuous and can not be disturbed at the time of swing Therefore, it is advantageous in enhancing convenience of use.

It is presumed that the present invention does not change the relationship between the relative position and the direction between the golf club side three-dimensional magnetic sensor 14 and the golf club head 4. [

Therefore, since the measurement error becomes large in the golf club 2 in which the shaft 6 has a large warpage and twist, the golf club to be measured by the present invention can be used for a putter club or an approach shot Clubs are preferred.

(Second Embodiment)

Next, the second embodiment will be described.

In the first embodiment, by correcting the first time series data D1 by using the second calibration data Dc2, the accurate second time series in which the correction with respect to the ball placement position P0 and the target line L is made So as to obtain data D2.

However, it is determined that the ball mounting position P0 with respect to the reference position 1202 of the transmitter 12 is fixed and determined and the target line L with respect to the reference direction 1204 of the transmitter 12 is fixed and fixed If the condition is satisfied, the correction by the second calibration data Dc2 becomes unnecessary.

That is, the actual data generated based on the first detection signal S1 detected by the golf club side three-dimensional magnetic sensor 14 is corrected by using the first calibration data Dc1, It is possible to obtain the behavior data D3 by using the time series data D1.

Therefore, if the above condition is satisfied, the behavior data D3 can be obtained without using the second calibration data Dc2, and the holding means side three-dimensional magnetic sensor 16 for obtaining the second calibration data Dc2 can be obtained Can be omitted.

In the second embodiment, a movement measuring device for a golf club head in which the holding means side three-dimensional magnetic sensor 16 is omitted will be described.

Incidentally, in the following embodiments, the same parts and members as those of the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted or briefly explained.

(Measurement system 11)

20, the measuring system 11 includes a transmitter 12, a golf club side three-dimensional magnetic sensor 14, and a controller / data processing device 18 Consists of.

The transmitter 12 is configured similarly to the first embodiment.

The transmitter 12 is provided at a predetermined position, specifically, at a position near the ball mounting position P0.

In the same manner as in the first embodiment, the X-axis and Y-axis of the transmitter 12 are extended in a horizontal plane and the Z-axis is oriented in the vertical direction, and the center position of the transmitter 12 is set at a predetermined reference position 1202), and the Y-axis direction passing through the reference position 1202 is defined as a predetermined reference direction 1204.

In the second embodiment, the reference position 1202 with respect to the ball mounting position P0 is fixed, and the reference direction 1204 with respect to the target line L is fixed.

The golf club side three-dimensional magnetic sensor 14 is constructed in the same manner as the first embodiment and has a first measurement point 1402 and a first measurement direction 1404 and a first measurement point 1402 with respect to the reference position 1202 1402 and the first measurement direction 1404 with respect to the reference direction 1204 is directed.

In the second embodiment, the first measurement point 1402 is the center position of the golf club side three-dimensional magnetic sensor 14, and the first measurement direction 1404 is the Y axis direction passing through the first measurement point 1402.

The golf club side three-dimensional magnetic sensor 14 is fixed to a portion of the shaft 6 of the golf club 2 near the club head 4. [

In the present embodiment, the golf club side three-dimensional magnetic sensor 14 has the Y axis (the first measurement direction 1404) parallel to the striking direction of the golf club 2, and also the Z axis parallel to the shaft axis have.

(Holding means 20)

The holding means 20 is constituted similarly to the first embodiment except that the holding means side three-dimensional magnetic sensor 16 is omitted, and the holding means 20 holds the golf club 2 in such a manner that the rake angle and the loft angle become equal will be.

The viewing of the golf club by the holding means 20 is carried out so as to satisfy the following conditions.

1) The center point 410 (Fig. 6) of the face surface 402, which is a predetermined reference point of the golf club head 4 with respect to the reference position 1202 of the transmitter 12, coincides with the predetermined position.

2) The face side 402 facing the reference direction 1204 of the transmitter 12 faces a predetermined direction.

3) The center point 410 (reference point) with respect to the golf ball installation position P0 matches the predetermined position.

4) When the face surface 402 faces toward the target line L which connects the golf ball mounting position P0 with respect to the reference direction 1204 of the transmitter 12 and the target point C with which the golf ball hits, Side is directed in a predetermined direction.

The center point 410 of the face surface 402 with respect to the reference position 1202 and the reference direction 1204 of the transmitter 12 in the state in which the golf club 2 is held by the holding means 20. [ The three-dimensional position and the direction to which the face 402 faces are already known.

It is possible to obtain the three-dimensional position of the center point 410 of the face face 402 and the side facing the face face 402 from the side facing the first measurement point 1402 and the first measurement direction 1404.

(Details of the measurement system 11)

The controller data processing device 18 detects only the first detection signal S1 from the golf club side three-dimensional magnetic sensor 14 and therefore detects the first measuring point S1 of the golf club side three- (X, y, z) with respect to the reference position 1202 of the first measurement direction 1402 and the three-dimensional position coordinates (x, y, z) with respect to the reference direction 1204 of the first measurement direction 1404, Except for the fact that only the second embodiment generates only the second data.

The three-dimensional position coordinates (x, y, z) and the attitude angles? Y,? P,? R obtained by the measurement system 11 are received by the personal computer 22, AD converted, The time series data of the behavior in the time series can be obtained.

(Personal computer 22)

The personal computer 22 generates behavior data representing the behavior of the golf club head 2 based on the time series data supplied from the measurement system 11 and is configured similarly to the first embodiment.

(The function of the behavior measuring device 10)

Fig. 22 is a functional block diagram of the behavior measuring device 10. Fig.

The behavior measuring device 10 functionally includes a first calibration means 50, a first time series data generating means 53, a storage means 56, a behavior data generating means 58, an output means 60, etc. .

A first time-series data generating means 53, a controller / data processing apparatus 18, and a personal computer 22. The first and second time-

The storage means 56, the behavior data generation means 58 and the output means 60 are constituted by the personal computer 22. [

20, the first calibration means 50 is provided with a first measurement point 1402 (see FIG. 20) based on the first detection signal S1 in a state where the golf club 2 is held by the holding means 20, Dimensional position data of the center point 410 (Fig. 6) of the face surface 402, which is a predetermined reference point of the golf club head 4 with respect to the first measurement direction 1404, As the first calibration data Dc1, the direction data indicating the direction of the face surface 402 facing the face.

In other words, the three-dimensional position data of the center point 410 of the face surface 402 is data that can obtain the first measurement point 1402 as the origin of the three-dimensional coordinates, and the direction data of the face surface 402 is 1 Measurement data 1404 can be obtained as a coordinate axis (Y axis) of three-dimensional coordinates.

Accordingly, the three-dimensional position data of the center point 410 of the face surface 402 with respect to the first measurement point 1402 and the three-dimensional position data of the face surface toward the first measurement direction 1404, based on the first detection signal S1, The direction data of the first calibration data 402 can be obtained as the first calibration data Dc1.

The first calibration data Dc1 is used to correct the position of the center point 410 of the face surface 402 with respect to the first measurement point 1402 and to correct the position of the center point 410 of the face surface 402 toward the first measurement direction 1404. [ (Direction) to which the light beam is directed.

The three-dimensional position data of the first measurement point 1402 is data that can obtain the reference position 1202 as the origin of the three-dimensional coordinates, and the direction data of the first measurement direction 1404 is the data of the reference direction 1204, (Y axis) of the three-dimensional coordinates.

Here, the first calibration data Dc1 is obtained by correcting the mounting position of the golf ball B with respect to the reference position 1202, and correcting the mounting position of the golf ball B with respect to the reference direction 1204 ) On the side of the target line L toward the target line L as shown in Fig.

The first time series data generating means 53 generates the first time series data 1402 for the reference position 1202 generated based on the first detection signal S1 in the process of swinging the golf club 2 by the golfer, By using the first calibration data Dc1 to correct the actual data consisting of the three-dimensional position data of the reference direction 1204 and the direction data indicating the direction toward the first measurement direction 1404 with respect to the reference direction 1204, And generates data D1.

The storage means 56 stores the three-dimensional shape model M reproducing the head of the golf club 2 in the three-dimensional coordinate system as in the first embodiment.

The behavior data generating means 58 generates the behavior data D3 representing the behavior of the golf club head 4 based on the first time series data D1 and the three- . The generation of the behavior data D3 is performed in the same manner as in the first embodiment.

(action)

Next, the operation of the behavior measuring device 10 will be described with reference to the flowchart of FIG.

In addition, the transmitter 12 is fixed at a predetermined position in advance.

First, as shown in Fig. 20, the holding means 20 holds the golf club 2 to be measured at the set rake and the loft angle, To 4) (step S100: holding step).

Next, in a state where the holding means 20 holds the golf club 2, the measurement system 11 and the personal computer 22 are started and the first calibration is executed (Step S102: first calibration step) .

That is, the first calibration means 50 calculates the third point of the center point 410 of the face surface 402 with respect to the first measurement point 1402 based on the first detection signal S1 and the second detection signal S2, Dimensional position data and direction data indicating the face side 402 of the golf club head 4 facing the first measurement direction 1404 as the first calibration data Dc1.

Subsequently, the holding means 20 is moved from the ball mounting position P0 to a position where the swing of the golf club 2 is not obstructed.

Next, as shown in Fig. 21, the golf ball B is placed at the ball mounting position P0, and the golfer swings the golf club 2 to face the golf ball B toward the cup C It drives.

Then, in the course of the swing, the first time series data generation means 53 corrects the actual data generated based on the first detection signal S1 by using the first calibration data Dc1 And generates first time series data D1 (step S104: first time series data generation step).

That is, by correcting the measured data with the first calibration data Dc1, the three-dimensional position data of the center point 410 of the face surface 402 with respect to the transmitter 12 and the three- The first time series data D2 is generated.

Here, since the first time series data D1 is corrected with respect to the ball placement position P0 and the target line L by the correction by the first calibration data Dc1, the first time series data D1 ) Is correct.

Subsequently, the behavior data generating means 58 generates the behavior data of the golf club head 2 based on the first time series data D1 and the three-dimensional shape model M of the golf club head read from the storage means 56 And generates behavior data D3 indicating the behavior (step S106: behavior data generation step).

That is, the behavior data generation means 58 generates the behavior data based on the time-series data consisting of the three-dimensional position data of the center point 410 of the face surface 402 obtained in Step S20 and the direction data indicating the side facing the face surface 402 The behavior data D3 is generated by moving the three-dimensional shape model M in the virtual space.

Subsequently, the output means 60 outputs the behavior data D3 (step S108: output step).

That is, the output means 60 displays the behavior data D3 as a display screen of the display 44 or prints the behavior data D3 by the printer 46. [

In addition, regarding the golf club 2 to be used, once the first calibration is performed, the processes of steps S10, S12, S14, and S16 may be omitted, and the process after step S18 may be performed.

Next, the display of the behavior data D3 is the same as that of the first embodiment, so that the description is omitted.

According to the second embodiment, the same effects as those of the first embodiment are obtained, and the following effects are obtained.

1) Since the holding means side three-dimensional magnetic sensor 16 becomes unnecessary as compared with the first embodiment, only the golf club side three-dimensional magnetic sensor 14 can be provided. Therefore, the configuration can be simplified and the cost can be reduced .

2) Since the holding means side three-dimensional magnetic sensor 16 becomes unnecessary, it is possible to eliminate an error component caused by an error in the mounting position of the three-dimensional magnetic sensor 16 on the holding means side, It is advantageous in improving the performance.

The positional relationship and direction between the reference position 1202 of the transmitter 12, the reference direction 1204, the golf ball mounting position P0, and the target line L must be fixed in the second embodiment .

Therefore, at the time of installing the behavior measuring device 10, a plate to which the transmitter 12 is fixed is prepared, and the golf ball mounting position P0 and the target line L are visually recognized ), And measurement may be performed on such a plate.

Incidentally, as described in the first embodiment, by using the three-dimensional magnetic sensor for measuring the ball position, the direction data of the ball mounting position P0 and the target line L are obtained as calibration data, The first time series data D1 may be corrected to obtain the second time series data D2, and the behavior data D3 may be calculated from the second time series data.

(Third Embodiment)

Next, a third embodiment will be described.

In the first embodiment, the case of measuring the behavior of the golf club head has been described. However, if the ball is a hitting ball that can warp or warp in other sports, such as swinging the hitting ball and hitting the ball, It is possible to measure the behavior of the impact ball with the same principle as that of the impact ball.

Examples of such hits include a baseball bat, a tennis racket, and the like.

In the third embodiment, the behavior measuring device for measuring the behavior of the bat will be described.

Incidentally, in the following embodiments, the same or similar members to those of the first embodiment are denoted by the same reference numerals, and their description is omitted or simply performed.

In the third embodiment, as shown in Fig. 24, the baseball ball (B) (game ball) placed on the tee 62 is lifted by the bat 64 when the player hits the bat 64 (A) and (b) are measured.

Fig. 25 is an explanatory view showing the configuration of the bat movement measuring device 10A (hereinafter referred to as the movement measuring device 10A).

As shown in Fig. 25, the behavior measuring device 10A is installed and used in, for example, a batting center or a sports shop. The behavior measuring device 10A includes a measuring system 11, 66, and a personal computer 22.

(Measurement system 11)

The measurement system 11 measures time series data indicating the three-dimensional position and the direction (direction) of the bat 64.

In this embodiment, like the first embodiment, the measurement system 11 includes the transmitter 12, the hit ball side three-dimensional magnetic sensor 14A, the holding means side three-dimensional magnetic sensor 16A, And a data processing device 18. [0030]

As in the first embodiment, the transmitter 12 is provided at a predetermined position.

31, the transmitter 12, the impact ball side three-dimensional magnetic sensor 14A, and the holding means side three-dimensional magnetic sensor 16A are connected to three mutually orthogonal axes (X axis, Y axis, Z axis ) Direction, respectively.

The configurations of the transmitter 12, the hit ball side three-dimensional magnetic sensor 14A and the holding means side three-dimensional magnetic sensor 16A are the same as those of the transmitter 12, the golf club side three-dimensional magnetic sensor 14, And the holding means side three-dimensional magnetic sensor 16 are the same as those of the holding means side three-dimensional magnetic sensor 16, detailed description thereof will be omitted.

The center position of the transmitter 12 is set as a predetermined reference position 1202 and the Y axis direction passing through the reference position 1202 is set as a predetermined reference direction 1204. [

The impact ball side three-dimensional magnetic sensor 14A has a first measurement point 1402 and a first measurement direction 1404 and has a three-dimensional position of the first measurement point 1402 with respect to the reference position 1202, And outputs the first detection signal S1 according to the direction of the first measurement direction 1404 with respect to the direction 1204. [

In this embodiment, the first measurement point 1402 is the center position of the impact ball side three-dimensional magnetic sensor 14A, and the first measurement direction 1404 is the Y axis direction passing through the first measurement point 1402. [

The batting mouth side three-dimensional magnetic sensor 14A is fixed to the bat 64 and is fixed to the grip portion 6402 of the bat 64 in this embodiment.

In the present embodiment, the impact ball side three-dimensional magnetic sensor 14A has a Y axis (the first measurement direction 1404) orthogonal to the center axis of the bat 64 (parallel to the batting direction) And the axis is parallel to the center axis of the bat 64.

The holding means side three-dimensional magnetic sensor 16A has a second measuring point 1602 and a second measuring direction 1604 and has a Y axis which is one of the three axial directions directed toward the batting direction of the bat 64, And outputs the second detection signal S2 in accordance with the three-dimensional position of the second measurement point 1602 with respect to the position 1202 and the second measurement direction 1604 with respect to the reference direction 1204.

The second measuring point 1602 is the center position of the holding means side three-dimensional magnetic sensor 16A and the second measuring direction 1604 is the Y axis direction passing through the second measuring point 1602.

The holding means side three-dimensional magnetic sensor 16A is integrally supported by the holding means 66. [

The holding means side three-dimensional magnetic sensor 16A has the Y axis (the second measurement direction 1604) parallel to the batting direction of the bat 64 as described later, and also the Z axis is directed to the vertical direction.

(Holding means 66)

The holding means 66 holds the bat 64 so as to be in the set posture.

The holding means 66 includes a base 6602, a first support frame 6604, a first support portion 6606, a second support frame 6608, A positioning plate 6610, and a positioning plate 6612. [

The base 6602 is placed on the bottom surface (horizontal surface).

The first frame 6604 and the second frame 6608 are arranged from the base 6602. [

The first support portion 6606 is provided at the upper end of the first frame 6604 and is configured to detachably attach the intermediate portion in the longitudinal direction of the bat 64 and to adjust the direction toward the position of the bat 64 As possible. In this example, the bat 64 is supported on the first support portion 6606 in a state where the tip of the bat 64 is positioned lower than the base end. As the first supporting portion 6606, various conventionally known structures can be used.

The second support portion 6610 is provided at the upper end of the second frame 6608 and supports the batting surface 6404 of the bat 64 from below.

Fig. 28 is a view from the direction A1 in Fig. 25 when the batting surface 6404 of the bat 64 is in contact with the positioning plate 6612, Fig. 29 is a view from the B1 direction in Fig. 28, C1 < / RTI >

As shown in Figs. 28 to 30, the positioning plate 6612 is a rectangular plate, and is provided on the second supporting portion 6610 through an adjusting mechanism (not shown) for adjusting the inclination of the positioning plate 6612 have.

The positioning plate 6612 has an edge portion 6612A extending linearly on one side thereof with an acute angle in section.

The inclination angle of the positioning plate 6612 is adjusted such that the center axis of the blade 64 is parallel to the edge portion 6612A by the above adjustment mechanism.

The positioning plate 6612 has on its upper surface a reference line 6614 passing through the center of the extending direction of the edge portion 6612A and perpendicular to the edge portion 6612A.

On the upper surface of the positioning plate 6612, a holding means side three-dimensional magnetic sensor 16A is provided.

The holding means side three-dimensional magnetic sensor 16A is configured such that the second measurement point 1602 is located on the reference line 2012 and the second measurement direction 1604 is aligned with the reference line 6614, .

The bat 64 is set such that the ball 6404 is in contact with the edge portion 6612A so that the edge portion 6612A passes a predetermined center point 6410 on the ball surface 6404, 6606).

In the present embodiment, the bat 64 is in the set posture because the player of the standard size swings the bat 64 and strikes the ball B passing through the center of the strike zone In the posture.

In this way, the three-dimensional position of the center point 6410 of the batting surface 6404 and the three-dimensional position of the bat 64 perpendicular to the center axis of the bat 64, And the second measuring point 1602 of the holding means side three-dimensional magnetic sensor 16A and the side facing the second measuring direction 1604 face toward the side of the bat 64 indicated by the direction of the straight line passing through the three- It is already known.

It is possible to obtain the three-dimensional position of the center point 6410 of the batting surface 6404 and the side facing the bat 64 from the side facing the second measuring point 1602 and the second measuring direction 1604.

(Details of the measuring system 11)

The measuring system 11 will be described in more detail.

As shown in Fig. 31, the controller / data processing device 18 has a drive circuit 18A, a detection circuit 18B, and a computer 18C, as in the first embodiment.

The drive circuit 18A generates a drive signal for sequentially generating predetermined three kinds of magnetic fields in the transmitter 12 and supplies the drive signal to the transmitter 12. [

The detection circuit 18B detects the first detection signal S1 supplied from the hit area side three dimensional magnetic sensor 14A and the second detection signal S2 supplied from the holding means side three dimensional magnetic sensor 16A .

The computer 18C implements the following functions by executing data processing software.

That is, the computer 18C controls the drive circuit 18A and the detection circuit 18B, performs data processing from the output voltage obtained from the detection circuit 18B, and determines the position of the hit side three-dimensional magnetic sensor 14A And the direction toward the position of the three-dimensional magnetic sensor 16A on the side of the holding means.

The computer 18C sets the position of the transmitter 12 to the reference position 1202 and sets the three-dimensional position coordinates (x, y, z) based on three mutually orthogonal axes (X, Y, Z) z) is calculated and output.

The computer 18C has the Y-axis direction centering on the transmitter 12 as the reference direction 1204 as described above and the direction in which the magnetic sensors 14 and 16 face the reference direction 1204 Theta] y, [theta] p, and [theta]

Therefore, the time series data of the three-dimensional position coordinates (x, y, z) are data indicating the positions of the magnetic sensors 14 and 16 and the time series data of the yaw angle? Y, pitch angle? P, Is the data indicating the direction toward which the magnetic sensors 14 and 16 are directed.

The three-dimensional positional coordinates (x, y, z) of the first measuring point 1402 of the impact ball side three-dimensional magnetic sensor 14A with respect to the reference position 1202 by the computer 18C and the three- Generation of the time series data of the attitude angles? Y,? P, and? R with respect to the reference direction 1204 of the first to fourth embodiments 1404 to 1404 is performed in the same manner as in the first embodiment.

The three-dimensional position coordinates (x, y, z) and the attitude angles? Y,? P,? R obtained in the measurement system 11 are received by the personal computer 22, AD converted, Time series data of the behavior during the swing of the vehicle 6402 can be obtained.

The three-dimensional position coordinate (x, y, z) of the second measuring point 1602 of the holding means side three-dimensional magnetic sensor 16A with respect to the reference room position 1202 and the reference of the second measuring direction 1604 The generation of the data of the attitude angles? Y,? P, and? R with respect to the direction 1204 is basically the same as that in the hit area side three-dimensional magnetic sensor 14A, and thus description thereof is omitted.

In addition, as described above, the transmitter 12, the impact ball side three-dimensional magnetic sensor 14A, and the holding means side three-dimensional magnetic sensor 16A, as shown in Fig. 31, To the coil loop.

Therefore, the three-axis directions of the transmitters 12 and the magnetic sensors 14 and 16 as much as possible are determined by the three-dimensional position coordinates (x, y, z) detected by the respective magnetic sensors 14 and 16 And is preferable in reducing the load when performing the processing with the attitude angles? Y,? P, and? R in the personal computer 22 to be described later.

From this point of view, the batting mouth side three-dimensional magnetic sensor 14A is set so that one axis (X axis) of the three axis directions coincides with the center axis of the bat 64, and the other one axis Is fixed to the grip portion 6402 of the bat 64 with the bat 64 facing the batting direction.

It is preferable that the holding means side three-dimensional magnetic sensor 16A is supported by the holding means 66 with one axis (Y axis) in the three axial directions facing the striking direction of the bat 64.

In the present embodiment, the transmitter 12 has the X-axis and the Y-axis extending in the horizontal plane and the Z-axis extending in the vertical direction.

(Personal computer 22)

Next, the personal computer 22 will be described.

The personal computer 22 generates behavior data representing the behavior of the bat 64 based on the time series data supplied from the measurement system 11.

32 is a block diagram showing the configuration of the personal computer 22;

32 is a view showing a state in which the hit ball side three-dimensional magnetic sensor 14A and the holding means side three-dimensional magnetic sensor 16A are provided in the measurement system 11 and that the hard disk device 36 is provided on the side of the bat 64 (Fig. 8), except that a dedicated program for performing the behavior measurement is stored, detailed description thereof will be omitted.

(The function of the behavior measuring device 10A)

33 is a functional block diagram of the behavior measuring device 10A.

The behavior measuring device 10A includes a first calibration means 50, a second calibration means 52, a first time series data generation means 53, a second time series data generation means 54, A storage means 56, a behavior data generating means 58, an output means 60, and the like.

First, the positional relationship of the transmitter 12, the bat 64, and the ball B will be described.

As shown in Fig. 27, the transmitter 12 is provided at a predetermined position, and more specifically, is fixedly disposed behind the player swinging the bat 64. As shown in Fig.

On the bottom surface G, a tee 62 is provided, and the ball B is placed on the top of the tee 62.

On the bottom surface G, a ball placement position P0 is indicated by a mark or the like, a tee 62 is provided on the ball placement position P0, a ball B is placed on the top of the tee 62, do.

Therefore, when viewed from the plane, the center point P1 of the ball B coincides with the ball mounting position P0.

In addition, on the front of the tee 62, a mark or the like as a target for ejecting the ball B is provided.

The player swings the bat 64 by aiming the ball B placed on the tee 62 by the batting surface 6404 of the bat 64.

In this case, a straight line connecting the center point P1 of the ball B placed on the tee 62 with the target is the target line L.

In addition, when the player swings the bat 64, between the transmitter 12 and the tee 62 (the ball placement position P0) so that the transmitter 12 does not interfere with the player or the bat 64 Sufficient clearance is ensured.

25, the first calibration means 50 is provided with a first detection signal S1 and a second detection signal S2 based on the first detection signal S1 and the second detection signal S2 in a state where the holding means 66 holds the bat 64. [ Dimensional position data of the center point 6410 (Fig. 30) of the batting surface 6404, which is a predetermined reference point of the bat 64 with respect to the first measuring point 1402, The direction data indicating the direction in which the bat 64 of the microcomputer 64 is directed is obtained as the first calibration data Dc1.

In other words, the three-dimensional position data of the center point 6410 of the batting surface 6404 is data that can obtain the first measuring point 1402 as the origin of the three-dimensional coordinate, and the direction data of the bat 64 is the first The measurement direction 1404 is data that can be obtained as a coordinate axis (Y axis) of three-dimensional coordinates.

That is, based on the first detection signal S1 and the second detection signal S2, three-dimensional position data of the second measurement point 1602 with respect to the first measurement point 1402 and three-dimensional position data of the second measurement point 1602 with respect to the first measurement direction 1404 The direction data of the second measurement direction 1604 with respect to the facing side is obtained.

Here, as described above, the three-dimensional position of the center point 6410 of the batting surface 6404 and the side facing the bat 64 are obtained from the side facing the second measurement point 1602 and the second measurement direction 1604 Loses.

Therefore, based on the first detection signal S1 and the second detection signal S2, the three-dimensional position data of the center point 6410 of the ball surface 6404 with respect to the first measurement point 1402 and the three- The direction data of the bat 64 with respect to the side toward which the first calibration data 1404 is directed can be obtained as the first calibration data Dc1.

That is, the first calibration data Dc1 is obtained by correcting the position of the center point 6410 of the ball surface 6404 with respect to the first measurement point 1402 and correcting the position of the bat 64 with respect to the first measurement direction 1404, (Direction) of the light beam.

28 and 29, the second calibration means 52 is configured such that the second measurement point 1602 is positioned on the ball placement position P0 And the holding means 66 is positioned on the bottom surface so that the side facing the second measuring direction 1604 is aligned with the side toward which the target line L is directed, Dimensional position data of the second measurement point 1602 with respect to the reference position 1202 and the second measurement direction 1604 with respect to the reference direction 1204 based on the second detection signal S2, Direction data indicating the direction of the second calibration data Dc2 is obtained as the second calibration data Dc2.

In other words, the three-dimensional position data of the second measurement point 1602 is data in which the reference position 1202 is obtained as the origin of the three-dimensional coordinate, and the direction data of the second measurement direction 1604 is data in the reference direction 1204 (Y-axis) of the three-dimensional coordinates.

In other words, the second calibration data Dc2 is used for correcting the mounting position of the ball B (game ball mounting position) with respect to the reference position 1202 and correcting the position of the target line L with respect to the reference direction 1204 Which is the data for performing the correction on the one side.

The first time series data generating means 53 generates the first time series data D2 based on the first measurement point 1402 with respect to the reference position 1202 generated based on the first detection signal S1 in the process of swinging the bat 64 by the player By using the first calibration data Dc1 to correct the actual data including the three-dimensional position data and the direction data indicating the direction of the first measurement direction 1404 with respect to the reference direction 1204, (D1).

The second time series data generation means 54 generates the second time series data D2 by correcting the first time series data D1 using the second calibration data Dc2.

The storage means 56 stores the three-dimensional shape model M reproducing the bat 64 in the three-dimensional coordinate system.

In other words, the storage means 56 stores the three-dimensional shape model M in association with the three-dimensional position of the center point 6410 of the ball surface 6404 and the side to which the bat 64 is directed.

In the present embodiment, the storage means 56 is constituted by the hard disk device 36 or the RAM 34 of the personal computer 22.

The behavior data generating means 58 generates the behavior data D3 indicating the behavior of the bat 64 based on the second time series data D2 and the three dimensional shape model M of the head of the bat 64 will be.

In the present embodiment, the behavior data generation means 58 includes a calculation section 58A for calculating the time-series data of the position and the direction of the three-dimensional shape model M, and the behavior data D3 And an analysis unit 58B.

Here, the behavior data D3 will be further described.

In the present embodiment, the behavior data D3 includes the following data.

(1) Moving locus data as time-series data representing the locus of movement of the bat 64:

The movement locus data is represented by the movement locus of the center point 6410 of the batting surface 6404 or by the animation data representing the outline of the bat 64. [

(2) Raw point position data indicating a point touching the ball B of the batted surface 6404:

The generation of the other point position data by the behavior data generation means 58 is performed by the second time series data D2, the three-dimensional shape model M, and the ball B previously registered in the storage means 56, As shown in FIG.

(action)

Next, the operation of the behavior measuring device 10A will be described with reference to the flowchart of Fig.

In addition, the transmitter 12 is fixed at a predetermined position in advance.

First, as shown in Fig. 25 and Fig. 28 to Fig. 30, the holding means 66 holds the bat 64 to be measured in a set posture (step S30: holding step).

Next, the measurement system 11 and the personal computer 22 are activated and the first calibration is performed in a state where the holding means 66 holds the bat 64 in the enemy place (step S32: first Calibration step).

That is, the first calibration means 50 calculates the third point of the center point 6410 of the ball surface 6404 with respect to the first measurement point 1402 based on the first detection signal S1 and the second detection signal S2, Dimensional position data and direction data indicating the direction of the bat 64 with respect to the first measurement direction 1404 as the first calibration data Dc1.

Subsequently, as shown in Fig. 26, after the bat 64 is removed from the holding means 66, the holding means 66 is positioned with reference to the ball mounting position P0 and the target line L And placed on the bottom surface G (step S34: holding means positioning step).

28 and 29, the second measurement point 1602 of the three-dimensional magnetic sensor 16A on the side of the holding means is in the state of the ball B positioned at the ball mounting position P0, The holding means 66 is positioned such that the second measurement direction 1604 agrees with the center point P1 of the target line L and the second measurement direction 1604 coincides with the target line L.

In step S34, the holding means 66 positioned near the transmitter 12 is moved to the ball mounting position P0 spaced from the transmitter 12 in step S30.

Next, the second calibration means 52 calculates the three-dimensional position data of the second measurement point 1602 with respect to the reference position 1202 and the three-dimensional position data of the reference position 1204 based on the second detection signal S2, As the second calibration data Dc2 (step S36: second calibration step).

In other words, the second calibration data Dc2 is stored in the second calibration data Dc2 in the state where the holding means 66 is moved to the ball mounting position P0 (when the second measuring point 1602 coincides with the ball mounting position P0, Dimensional position and direction of the holding means side three-dimensional magnetic sensor 16A with respect to the transmitter 12 (in a state in which the measurement direction 1604 coincides with the target line L).

When the step S36 is completed, the holding means 66 is moved from the ball mounting position P0 to a position where the swing of the bat 64 is not obstructed.

Next, as shown in Fig. 27, the ball B is placed on the tee 62, and the player swings the bat 64 and drives the ball B toward the target.

Then, in the course of the swing, the first time series data generation means 53 corrects the actual data generated based on the first detection signal S1 by using the first calibration data Dc1 And generates first time series data D1 (step S38: first time series data generation step).

That is, by correcting the measured data by using the first calibration data Dc1, the three-dimensional position data of the center point 6410 of the ball 6404 with respect to the transmitter 12 and the three- The first time series data D2 consisting of the direction data representing the direction is generated.

However, since the first time series data D1 is not corrected for the ball placement position P0 and the target line L, the first time series data D1 is not yet accurate.

Next, the second time series data generation means 54 generates the second time series data D2 by correcting the first time series data D1 using the second calibration data Dc2 (Step S40: Second time series data generation step).

That is, by correcting the first time series data D1 using the second calibration data Dc2, accurate second time series data D2, which is corrected with respect to the ball placement position P0 and the target line L, Is obtained.

Subsequently, the behavior data generation means 58 generates the behavior data of the bat 64 based on the second time series data D2 and the three-dimensional shape model M of the bat 64 read from the storage means 56 (Step S42: behavior data generation step).

That is, the behavior data generating means 58 generates three-dimensional position data of the center point 6410 of the ball surface 6404 obtained in the step S30 and three-dimensional position data of the ball surface 6440 on the basis of the time- And moves the dimensional shape model M in the virtual space to generate the behavior data D3.

Subsequently, the output means 60 outputs the behavior data D3 (step S44: output step).

That is, the output means 60 displays the behavior data D3 as a display screen of the display 44 or prints the behavior data D3 by the printer 46. [

In addition, regarding the bat 64 to be used, once the first and second calibration have been performed, the processes of steps S30, S32, S34, and S36 may be omitted, and the process after step S38 may be performed.

When the ball placement position P0 or the target line L is changed, the processing of steps S30 and S32 may be omitted and only the processing after S14 may be performed.

The display screen of the display 44 showing the behavior data D3 is the same as that of the first embodiment, and is exemplified as follows, for example.

(1) The marking position of the batting surface 6404 is indicated by a mark.

(2) The movement locus in the vertical direction of the center point 6410 of the batting surface 6404 is shown.

(3) The movement locus in the left-right direction of the center point 6410 of the batting surface 6404 is shown.

(4) A moving trace of the bat 64 is shown by displaying a plurality of images of the perspective view of the bat 64 in a superimposed manner.

(5) The image of the perspective view of the bat 64 is displayed one by one with the lapse of time, thereby displaying the movement trace of the bat 64 as an animated image.

As described above, also in the third embodiment, similarly to the first embodiment, an imaging device such as a camera is unnecessary, and it is not necessary to secure an imaging space, so that the configuration can be simplified, the space can be saved, and the cost can be reduced It is advantageous in accurately measuring the behavior of the bat 64.

In addition, the measurement range of the bat 64 can be secured as compared with the technique using existing image data, and the measurement can be performed throughout the swing.

The first calibration data Dc1 is generated on the basis of the first detection signal S1 of the hit area side three-dimensional magnetic sensor 14A and the second detection signal S2 of the three-dimensional magnetic sensor 16A on the holding side, . Therefore, it is advantageous in securing the degree of freedom of changing the installation layout of the bat 64, the transmitter 12, and the holding means 66. Therefore, in the case of moving the installation place, the measurement of the behavior of the bat 64 is simplified . In addition, it can be easily installed even in places where it is liable to limit the layout such as an actual betting center.

Further, since the impact ball side three-dimensional magnetic sensor 14A and the holding means side three-dimensional magnetic sensor 16A can be positioned at positions close to the transmitter 12, the first calibration data Dc1 can be obtained to a high degree And is advantageous in increasing the degree of the behavior data D3.

In the third embodiment, the case where the second calibration data Dc2 is obtained by using the holding means side three-dimensional magnetic sensor 16A has been described.

However, it is also possible to provide the three-dimensional magnetic sensor for ball position measurement separately from the holding means-side three-dimensional magnetic sensor 16A and to obtain the second calibration data Dc2 by using the three-dimensional magnetic sensor for measuring the ball position Do.

That is, the three-dimensional magnetic sensor for measuring a ball position has a third measuring point and a third measuring direction, and detects magnetism around the third measuring point in three axial directions orthogonal to each other, And outputs the third detection signal in accordance with the three-dimensional position of the measurement point and the direction toward the third measurement direction with respect to the reference direction.

The third measuring point coincides with the predetermined ball mounting position P0 in the state viewed from the plane and the side toward which the third measuring direction is directed is the target line L connecting the ball mounting position P0 and the target point of the ball The ball-position-measuring three-dimensional magnetic sensor is positioned so as to coincide with the side on which the ball-

In this state, the second calibration means 52 calculates, based on the third detection signal, the three-dimensional position data of the third measurement point with respect to the reference position 1202 and the third measurement direction with respect to the reference direction 1204 Direction data indicating the direction of the second calibration data Dc2 is acquired as the second calibration data Dc2.

As described above, the three-dimensional magnetic sensor for measuring the ball position may be provided separately from the holding means side three-dimensional magnetic sensor 16A. However, as in the present embodiment, the holding means- When the second calibration data Dc2 is obtained by using the three-dimensional magnetic sensor for ball position measurement 16a, in other words, by using the three-dimensional magnetic sensor for ball position measurement by the three-dimensional magnetic sensor 16A on the holding means side, it is possible to simplify the structure and reduce the cost .

In the third embodiment, the impact ball side three-dimensional magnetic sensor 14A is provided on the grip portion 6402 of the bat 64. However, the impact ball side three-dimensional magnetic sensor 14A may be provided on the other portion of the bat 64 As shown in FIG.

However, when the impact-port side three-dimensional magnetic sensor 14A is attached to the grip portion 6402 as in the present embodiment, the impact port side three-dimensional magnetic sensor 14A is not conspicuous and is not likely to interfere with the swing Therefore, it is advantageous in enhancing convenience of use.

Although the third embodiment has been described with respect to the case where the batting mouth is the bat 64, the present invention can be widely applied to a batting mouth in other ball games as long as it is a batting ball which can ignore warping and warping .

2: Golf club
3: grip portion
4: Golf club head
402: face face
6: Shaft
602: shaft shaft
10: Measuring device for the movement of the golf club head
11: Measurement system
12: Transmitter
1202: Reference location
1204: Reference direction
14: Three dimensional magnetic sensor of golf club side
1402: first measuring point
1404: First measurement direction
16: Three-dimensional magnetic sensor on the side of the holding means
1602: second measuring point
1604: Second measuring direction
18: Controller / data processing device
20:
22: Personal computer
50: first calibration means
52: second calibration means
53: first time series data generation means
54: second time series data generation means
56: storage means
58: Behavior data generation means
60: output means
S1: first detection signal
S2: second detection signal
Dc1: first calibration data
Dc2: second calibration data
D1: first time series data
D2: second time series data
D3: Behavior data
M: Three-dimensional shape model
10A: Behavior measurement device of impact ball
62: Tee
64:
6402:
6404: striking face
14A: Bat side three-dimensional magnetic sensor
16A: Three-dimensional magnetic sensor on the side of the holding means
66:

Claims (31)

A golf club head movement measuring device for measuring the movement of a golf club head of the golf club when a golfer swings the golf club,
A transmitter installed at a predetermined position and generating a magnetic field which already knows a distribution about intensity and direction,
The golf club according to any one of claims 1 to 3, further comprising: a sensor for detecting a magnetic flux around the first measurement point in a three-axis direction orthogonal to each other and having a first measurement point and a first measurement direction, A golf club side three-dimensional magnetic sensor for outputting a first detection signal in accordance with a three-dimensional position of the first measurement point and a direction toward the first measurement direction with respect to a predetermined reference direction,
A storage means for storing a three-dimensional shape model reproducing the golf club head in a three-dimensional coordinate system (coordinate system)
A holding means for holding the golf club so as to follow a set lie angle and a loft angle,
Wherein the three-dimensional position data of the predetermined reference point of the golf club head with respect to the first measuring point and the three-dimensional position data of the golf club head with respect to the first measuring direction First calibration means for acquiring, as first calibration data, direction data indicating a first direction,
The golf club according to any one of claims 1 to 3, wherein, in the process of swinging the golf club by the golfer, the three-dimensional position data of the first measurement point with respect to the reference position generated based on the first detection signal, First time series data generating means for generating first time series data by correcting actual measurement data composed of direction data representing the first time series data by using the first calibration data,
The first time-series data may include a three-dimensional position indicating a golf ball mounting position where the golf ball is mounted with respect to the reference position, a target position connecting the golf ball mounting position with the target point hitting the golf ball, Second time series data generating means for generating second time series data by performing correction using second calibration data indicating a side toward which the line is directed,
A behavior data generating means for generating behavior data representing the behavior of the golf club head based on the second time series data and the three-
And a controller for controlling the movement of the golf club head. The method according to claim 1,
Wherein the first measuring point and the second measuring point are integrally supported by the holding means and have a second measuring point and a second measuring direction and sense magnetic field around the second measuring point in three mutually orthogonal directions, A three-dimensional magnetic sensor on the side of the pivot means for outputting a second detection signal in accordance with a three-dimensional position of the second measurement point and a direction toward the second measurement direction with respect to the reference direction,
Wherein the acquisition of the first calibration data by the first calibration means is performed based on the first detection signal and the second detection signal,
And the movement of the golf club head is measured. 3. The method of claim 2,
Wherein the three-dimensional magnetic sensor on the golf club side and the three-dimensional magnetic sensor on the holding means face one of the three axial directions toward the striking direction of the golf club
And the movement of the golf club head is measured. 3. The method of claim 2,
The second measurement point is in agreement with the predetermined ball mounting position and the side toward which the second measuring direction is directed is positioned coincident with the side toward the target line connecting the ball mounting position and the target point of the golf ball, The three-dimensional position data of the second measurement point with respect to the reference position and the second measurement data with respect to the reference direction, based on the second detection signal, And second calibration means for acquiring, as the second calibration data, direction data indicating a direction toward which the direction is directed
Wherein the golf club head movement measuring device comprises: 5. The method of claim 4,
Wherein the holding means side three-dimensional magnetic sensor is configured to parallel one axis of the three-axis direction with a target line connecting the ball mounting position and a target point of the golf ball
And the movement of the golf club head is measured. The method according to claim 1,
A third measuring point, and a third measuring direction, wherein the magnetic sensing unit senses the magnetic force around the third measuring point in three mutually orthogonal directions, and detects a three-dimensional position of the second measuring point with respect to the reference position, A three-dimensional magnetic sensor for measuring a ball position for outputting a third detection signal in accordance with a direction toward the third measurement direction,
The third measuring point conforms to a predetermined ball mounting position in a state viewed from a plane and the side toward which the third measuring direction is directed coincides with the side toward which the target line connecting the ball mounting position and the target point of the golf ball faces. The three-dimensional position data of the third measurement point with respect to the reference position and the third position data of the third measurement point with respect to the reference position, based on the third detection signal, And second calibration means for acquiring, as the second calibration data, direction data indicating a direction in which the measurement direction is directed
And the movement of the golf club head is measured. A golf club head movement measuring device for measuring a behavior of a golf club head of a golf club when the golfer swings the golf club,
A transmitter installed at a predetermined position and generating a magnetic field which already knows a distribution about intensity and direction,
And a second measuring point fixed to the golf club and having a first measuring point and a first measuring direction and sensing magnetic field around the first measuring point in three mutually orthogonal directions, A three-dimensional magnetic sensor on the side of the golf club that outputs a first detection signal in accordance with the three-dimensional position and a direction of the first measurement direction with respect to a predetermined reference direction,
A three-dimensional coordinate system in which a three-dimensional shape model reproducing the golf club head is stored;
A holding means for holding the golf club so as to follow a set lie angle and a loft angle,
Wherein the three-dimensional position data of the predetermined reference point of the golf club head with respect to the first measuring point and the three-dimensional position data of the golf club head with respect to the first measuring direction First calibration means for acquiring direction data representing the first calibration data,
The golf club according to any one of claims 1 to 3, wherein, in the process of swinging the golf club by the golfer, the three-dimensional position data of the first measurement point with respect to the reference position generated based on the first detection signal, First time series data generating means for generating first time series data by correcting actual measurement data consisting of direction data representing the first time series data using the first calibration data,
And behavior data generating means for generating the behavior data representing the behavior of the golf club head based on the first time series data and the three-dimensional shape model of the golf club head,
Wherein the reference position and the reference direction are determined by the transmitter,
Wherein the holding of the golf club by the holding means comprises:
Wherein the reference point is positioned at a predetermined position with respect to the reference position and that the face facing the face surface is directed in a predetermined direction, The golf ball mounting position of the golf ball and the target point connecting the golf ball to the target point to which the golf ball is to be hit is set such that the face toward the face face faces a predetermined direction Done
And the movement of the golf club head is measured. 8. The method of claim 1 or 7,
Wherein the golf club side three-dimensional magnetic sensor is fixed to a grip portion of the golf club
And the movement of the golf club head is measured. 8. The method of claim 1 or 7,
Wherein the behavior data includes a movement locus of the center point of the face surface and a left and right entry angle formed by the movement locus and the target line on the horizontal plane when the target line is projected on the horizontal plane
And the movement of the golf club head is measured. 8. The method of claim 1 or 7,
Wherein the behavior data includes an upward and downward angle formed by the movement locus and the target line on the vertical plane when the movement locus of the center point of the face surface and the target line are projected on the vertical plane parallel to the target line
And the movement of the golf club head is measured. 8. The method of claim 1 or 7,
Wherein the behavior data includes direction data indicating the face of the golf club head facing the golf ball immediately before the face surface strikes the golf ball,
The direction data includes:
A normal line passing through a center point of the face surface and a normal line passing through the center line of the face plane and a target line intersecting the normal line on the horizontal plane,
And the movement of the golf club head is measured. 8. The method of claim 1 or 7,
Wherein the behavior data includes direction data indicating the face of the golf club head facing the golf ball immediately before the face surface strikes the golf ball,
The direction data includes:
Wherein the shaft shaft and the vertical shaft intersecting the shaft shaft are engaged with each other
And the movement of the golf club head is measured. The method according to claim 1,
Wherein the behavior data includes direction data indicating the face of the golf club head facing the golf ball immediately before the face surface strikes the golf ball,
Wherein the direction data is a hit loft angle formed by a normal line passing through a center point of the face plane and a plane parallel to a horizontal plane intersecting the normal line,
Wherein the behavior data generating means generates the loft-based loft angle based on the second time series data and the loft angle of the golf club head registered in advance
And the movement of the golf club head is measured. 8. The method of claim 7,
Wherein the behavior data includes direction data indicating the face of the golf club head facing the golf ball immediately before the face surface strikes the golf ball,
Wherein the direction data is a hit loft angle formed by a normal line passing through a center point of the face plane and a plane parallel to a horizontal plane intersecting the normal line,
Wherein the behavior data generating means generates the hitting angle at the time of hitting based on the first time series data and the loft angle of the golf club head registered in advance
And the movement of the golf club head is measured. 8. The method of claim 1 or 7,
Wherein the behavior data includes movement trajectory data indicating a trajectory of movement of the golf club head
And the movement of the golf club head is measured. The method according to claim 1,
Wherein the behavior data includes data of a spot position indicating a spot where the face surface touches the golf ball
The behavior data generating means may generate the behavior data based on the second time series data, the three-dimensional shape model, and the diameter of the golf ball registered in advance
And the movement of the golf club head is measured. 8. The method of claim 7,
Wherein the behavior data includes data of a spot position indicating a spot where the face surface touches the golf ball,
Wherein the behavior data generating means generates the data on the basis of the first time series data, the three-dimensional shape model, and the diameter of the golf ball registered in advance
And the movement of the golf club head is measured. 15. The method according to any one of claims 9 to 14,
And output means for outputting the behavior data,
The output means may be configured to output the behavior data when the behavior data includes at least one of the left and right approach angles, the up and down approach angles, the hit angle, the strike angle, Wherein the numerical values of the left and right approach angles, the up and down approach angles, the hit angle, the strike angle, and the hit angle at the time of hitting are displayed on a display screen or printed out. Measuring device. 16. The method of claim 15,
And output means for outputting the behavior data,
Wherein the output means displays a movement locus in the vertical direction of the center point of the face surface of the golf club head when the behavior data includes the movement locus data. 16. The method of claim 15,
And output means for outputting the behavior data,
Wherein the output means displays a movement locus in a lateral direction of the center point of the face surface of the golf club head when the behavior data includes the movement locus data. 16. The method of claim 15,
And output means for outputting the behavior data,
Wherein the output means displays a plurality of pieces of animation data representing the outline of the golf club head in a superimposed manner when the behavior data includes the motion locus data. 18. The method according to claim 16 or 17,
And output means for outputting the behavior data,
Wherein the output means displays a mark indicating the position of the spot on the image representing the face of the golf club head when the behavior data includes the data of the spot position Behavior measuring device. A method of measuring a behavior of a golf club head measuring a behavior of a golf club head of the golf club when the golfer swings the golf club,
A transmitter installed at a predetermined position and generating a magnetic field which already knows a distribution about intensity and direction,
And a second measuring point fixed to the golf club and having a first measuring point and a first measuring direction and sensing magnetic field around the first measuring point in three mutually orthogonal directions, A three-dimensional magnetic sensor on the side of the golf club that outputs a first detection signal in accordance with the three-dimensional position and a direction of the first measurement direction with respect to a predetermined reference direction,
A three-dimensional coordinate system in which a three-dimensional shape model reproducing the golf club head is stored;
A holding means for holding the golf club so as to follow the set lie angle and the loft angle,
Wherein the three-dimensional position data of the predetermined reference point of the golf club head with respect to the first measuring point and the three-dimensional position data of the golf club head with respect to the first measuring direction A first calibration step of acquiring, as first calibration data,
The golf club according to any one of claims 1 to 3, wherein, in the process of swinging the golf club by the golfer, the three-dimensional position data of the first measurement point with respect to the reference position generated based on the first detection signal, A first time series data generation step of generating first time series data by correcting actual measurement data consisting of direction data representing the first time series data using the first calibration data,
The first time-series data may include a three-dimensional position indicating a golf ball mounting position where the golf ball is mounted with respect to the reference position, a target position connecting the golf ball mounting position with the target point hitting the golf ball, A second time series data generating step of generating second time series data by performing correction using second calibration data indicating a side toward which the line is directed,
A behavior data generating step of generating behavior data representing the behavior of the golf club head based on the second time series data and a three-dimensional shape model of the golf club head,
And measuring the movement of the golf club head. A method of measuring a behavior of a golf club head measuring a behavior of a golf club head of the golf club when the golfer swings the golf club,
A transmitter installed at a predetermined position and generating a magnetic field which already knows a distribution about intensity and direction,
And a second measuring point fixed to the golf club and having a first measuring point and a first measuring direction and sensing magnetic field around the first measuring point in three mutually orthogonal directions, A three-dimensional magnetic sensor on the side of the golf club that outputs a first detection signal in accordance with the three-dimensional position and a direction of the first measurement direction with respect to a predetermined reference direction,
A three-dimensional coordinate system in which a three-dimensional shape model reproducing the golf club head is stored;
A holding means for holding the golf club so as to follow the set lie angle and the loft angle,
Wherein the three-dimensional position data of the predetermined reference point of the golf club head with respect to the first measuring point and the three-dimensional position data of the golf club head with respect to the first measuring direction A first calibration step of acquiring, as first calibration data,
The golf club according to any one of claims 1 to 3, wherein, in the process of swinging the golf club by the golfer, the three-dimensional position data of the first measurement point with respect to the reference position generated based on the first detection signal, A first time series data generation step of generating first time series data by correcting actual measurement data consisting of direction data representing the first time series data using the first calibration data,
And a behavior data generating step of generating behavior data representing the behavior of the golf club head based on the first time series data and the three-dimensional shape model of the golf club head,
Wherein the reference position and the reference direction are determined by the transmitter,
Wherein the holding of the golf club by the holding means comprises:
Wherein the reference point is positioned at a predetermined position with respect to the reference position and that the face facing the face surface is directed in a predetermined direction, The golf ball mounting position of the golf ball and the target point connecting the golf ball to the target point to which the golf ball is to be hit is set such that the face toward the face face faces a predetermined direction doing
Wherein the movement of the golf club head is measured. A player's behavior measuring device for measuring the behavior of a hit ball when swinging a hit ball striking a competition ball,
A transmitter installed at a predetermined position and generating a magnetic field which already knows a distribution about intensity and direction,
A first measurement point fixed to the impact port and having a first measurement point and a first measurement direction and sensing magnetic field around the first measurement point in three mutually orthogonal directions, Dimensional magnetic sensor for outputting a first detection signal in accordance with a direction of the first measurement direction with respect to a three-dimensional position and a predetermined reference direction,
1. A three-dimensional coordinate system comprising: storage means for storing a three-
A holding means for holding the hitting hole so as to be in a set position and direction,
Dimensional position data of a predetermined reference point of the impact hole with respect to the first measurement point and direction data indicating a direction toward the impact hole in the first measurement direction in a state where the impact hole is held in the holding means First calibration means for acquiring, as first calibration data,
Wherein the player is caused to swing the striking mouth by using the three-dimensional position data of the first measurement point with respect to the reference position generated based on the first detection signal and the three- First time series data generating means for generating first time series data by correcting actual measurement data consisting of direction data representing the first time series data using the first calibration data,
The first time-series data is a three-dimensional position indicating a ball placement position for a game where a ball for competition is installed with respect to the reference position, Second time-series data generating means for generating second time-series data by performing correction using second calibration data indicating a side toward which the target line connecting the first-
Based on the second time series data and the three-dimensional shape model of the hit ball, behavior data generating means for generating behavior data representing the behavior of the hit ball
And a control unit for controlling the operation of the hitting ball. 26. The method of claim 25,
And a second measuring point having a second measuring point and a second measuring point, wherein the second measuring point is magnetized in three axial directions orthogonal to each other, and the second measuring point and the second measuring point are integrally supported by the holding means, A three-dimensional magnetic sensor on the side of the holding means for outputting a second detection signal in accordance with a three-dimensional position of the measurement point and a direction toward the second measurement direction with respect to the reference direction,
Wherein the acquisition of the first calibration data by the first calibration means is performed based on the first detection signal and the second detection signal,
Wherein the movement of the hitting ball is measured. 27. The method of claim 26,
Wherein the impact ball side three-dimensional magnetic sensor and the holding means side three-dimensional magnetic sensor are arranged such that one axis of the three axis directions is directed toward the striking direction of the striking ball
Wherein the movement of the hitting ball is measured. 27. The method of claim 26,
The second measuring point matches the predetermined game ball mounting position in a state viewed from a plane and the side toward which the second measuring direction is directed is a target line connecting the game ball mounting position and the target point of the game ball, Dimensional positional data with respect to the reference position and the second measurement point three-dimensional position data with respect to the reference position, based on the second detection signal, with the holding means side three-dimensional magnetic sensor positioned, And second calibration means for acquiring, as the second calibration data, direction data indicating a direction toward the second measurement direction
Wherein the movement of the hitting ball is measured. 29. The method of claim 28,
Wherein the holding means side three-dimensional magnetic sensor is configured to parallel one axis of the three axial directions with a target line connecting the ball ball installation position with the competition ball and a target point of the competition ball
Wherein the movement of the hitting ball is measured. 26. The method of claim 25,
A third measuring point, and a third measuring direction, wherein the magnetic sensing unit senses the magnetic force around the third measuring point in three mutually orthogonal directions, and detects a three-dimensional position of the second measuring point with respect to the reference position, A three-dimensional magnetic sensor for measuring a ball position for competition, which outputs a third detection signal in accordance with a direction toward the third measurement direction,
The third measuring point conforms to a predetermined ball placement position for a game and the side toward which the third measurement direction is directed is a target line connecting the game ball installation position and a target point of the game ball, Dimensional positional data of the third measuring point with respect to the reference position based on the third detection signal in a state in which the three-dimensional magnetic sensor for measuring a game ball position is positioned so as to coincide with the facing side of the third measuring point, And second calibration means for acquiring, as the second calibration data, direction data indicating a direction toward the third measurement direction with respect to the reference direction
Wherein the movement of the hitting ball is measured. A method of measuring the behavior of a batting ball that measures the behavior of the batting ball when the player swings a batting ball that hits the ball for competition,
A transmitter installed at a predetermined position and generating a magnetic field which already knows a distribution about intensity and direction,
A first measurement point fixed to the impact port and having a first measurement point and a first measurement direction and sensing magnetic field around the first measurement point in three mutually orthogonal directions, Dimensional magnetic sensor for outputting a first detection signal in accordance with a direction of the first measurement direction with respect to a three-dimensional position and a predetermined reference direction,
1. A three-dimensional coordinate system comprising: storage means for storing a three-
A holding means for holding the hitting hole so as to be in a set posture is provided,
Dimensional position data of a predetermined reference point of the hit ball with respect to the first measurement point and a direction indicating a face side of the hit ball with respect to the first measurement direction facing the first measurement point in a state in which the striking means is held in the holding means A first calibration step of acquiring data as first calibration data;
Dimensional position data of the first measurement point with respect to the reference position generated based on the first detection signal in the process of swinging the impact ball by the player and the three- A first time-series data generating step of generating first time-series data by correcting actual measurement data consisting of direction data representing the first time series data by using the first calibration data,
The first time-series data is a three-dimensional position indicating a ball placement position for a game where a ball for competition is installed with respect to the reference position, A second time-series data generation step of generating second time-series data by correcting the second time-series data by using second calibration data indicating a side toward which the target line connecting the first-
Based on the second time series data and the three-dimensional shape model of the hit ball, a behavior data generating step of generating behavior data representing the behavior of the hit ball
Wherein the first and second strikers are mounted on the hitting member.

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