Device and program

Abstract

To provide a device, etc. for supporting swing adjustment in putting, an approach shot, etc. in golf, etc.SOLUTION: A device includes an attaching member that can be attached to a region that moves along with a golf swing, a detection part in which output changes according to a back swing amount in a swing, a notification part for notifying a user, and a control part for controlling the notification part so as to cause the notification part to notify the user that a back swing amount corresponding to designated strength of the swing is reached, based on the information on the strength of the swing designated by the user, and the correspondence between the information on the strength of the swing and data indicating the back swing amount based on the output of the detection part.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a device for assisting in adjustment of swings, etc., in putting, approach, etc., in golf, etc. [Background technology]

[0002] In recent years, various systems have been proposed to assist in playing and practicing golf. Some of these systems acquire motion data when swinging a golf club and There are systems that provide users with swing information based on motion data. For example, a trainer system including a swing sensor attached to a golf club shaft to detect a swing trajectory has been proposed (for example, Non-Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Non-Patent Document 1] Nippon Bunka Publishing Golf Classic March 2013 issue (pages 86-91) Summary of the Invention [Problem to be solved by the invention]

[0004] Many of the conventional systems, including those mentioned above, assist in swing training with the goal of hitting the ball farther, but do not offer a function to help adjust or moderate the distance to match the target distance, as in the case of putting or approach shots.

[0005] Therefore, an object of the present invention is to provide a method for assisting in adjusting swings in putting, approach shots, etc. in golf, etc. This object can be achieved, for example, by a combination of the components described in the Means for Solving the Problems. The dependent claims can be, for example, further advantageous embodiments of the present invention.

Means for Solving the Problem

[0006] (1) A mounting member that can be mounted on a part that moves with a golf swing, a detection unit whose output changes according to the take-back amount in the swing, a notification unit that notifies the user, and information regarding the strength of the swing specified by the user and the take-back amount based on the information regarding the strength of the swing and the data indicating the take-back amount corresponding to the output of the detection unit. It is preferable to provide a control unit that controls the notification unit to notify the user that the take-back amount corresponding to the specified swing strength has been reached.

[0007] In this way, the user can receive a notification when the take-back amount corresponding to the specified swing strength is reached. Therefore, by starting the downswing with the take-back amount at which the notification is received, the swing can be performed with a stable take-back amount. The swing is preferably a putting or an approach, and particularly preferably a putting. It is said that the sense of distance in putting is adjusted by the swing amplitude rather than the strength of the force applied at impact. Therefore, it is possible to support the improvement of putting by notifying to stabilize the take-back amount during putting.

[0008] The "information regarding the strength of the swing" may be, for example, the flying distance of the hit ball as described in (3) below, or a set value predetermined in association with the take-back amount as described in (7) below.

[0009] "Data indicating the take-back amount" may be the data output by the detection unit itself, or may be data obtained by processing the output of the detection unit. For example, in a configuration using an acceleration sensor that detects acceleration as the detection unit as described in (14) below, the data indicating the take-back amount may be acceleration data based on the acceleration. In this case, the acceleration data may be the acceleration itself detected by the acceleration sensor, but it is preferably data obtained by calculating and processing the acceleration detected by the acceleration sensor, and it is particularly preferable to select data that is easy to identify the movement during the swing.

[0010] "Information regarding the strength of the swing and data indicating the take-back amount based on the output of the detection unit and the corresponding relationship" may be stored in advance in the storage unit or the like, but it is particularly preferable to adopt a configuration in which it is stored in response to a registration operation by the user. Also, a one-to-one correspondence between individual "information regarding the strength of the swing" and "data indicating the take-back amount" may be used, but it is particularly preferable to use a function (for example, a mathematical formula) that comprehensively represents the correspondence between a plurality of "information regarding the strength of the swing" and "data indicating the take-back amount".

[0011] The "notification unit" may be any device as long as the user wearing the device can recognize the notification. For example, it may be a buzzer or a speaker that audibly notifies by sound, or a display element or a light-emitting element that visually notifies by display or light emission, but it is particularly preferable to use a vibrator that notifies the user by vibration as described in (19) below. In the case of notification by vibration, notification can be performed without violating the golf play manager.

[0012] (2) The notification is preferably performed when the data indicating the take-back amount based on the output of the detection unit reaches the target value of the data indicating the take-back amount corresponding to the information regarding the specified swing strength.

[0013] The "target value of the data indicating the take-back amount" may be determined by any method. For example, the data read from the storage unit or the like may be used as the target value as it is, but it is particularly preferable to adopt a configuration in which the target value is obtained by calculation.

[0014] (3) Information regarding the strength of the swing specified by the user may be the flying distance of the hit ball. The flying distance may be specified in units of stride length or club length, and it is particularly good to use the stride length as the unit. By using the stride length or club length, which are distance measuring means allowed to be used during a golf play, it becomes easy to use this device during the play.

[0015] In this way, the user can receive a notification of the take-back amount suitable for hitting a putt or shot at the specified flying distance. For example, when it is 4 steps from the current position of the ball to the cup, when the take-back amount suitable for the flying distance of 4 steps is reached, a notification to that effect can be received, and thus the downswing can be started from there. As a result, the ball can be hit with the strength corresponding to 4 steps.

[0016] (4) The correspondence relationship between the information regarding the strength of the swing and the data indicating the take-back amount based on the output of the detection unit may be a function that defines the relationship between the flying distance of the hit ball and the data indicating the take-back amount. The control unit may obtain a target value corresponding to the flying distance specified by the user based on, for example, a function stored in a storage unit or the like.

[0017] In this way, the correspondence relationship between the flying distance of the hit ball and the data indicating the take-back amount can be stored with a small capacity. Also, no matter what flying distance is specified, the target value can be calculated based on the function.

[0018] (5) The control unit may associate and store the flying distance and the data indicating the take-back amount for a plurality of swings, and may estimate a function based on the correspondence relationships between a plurality of sets of the flying distance and the data indicating the take-back amount.

[0019] In this way, based on the swing of the user himself / herself that records the correspondence relationship, a function that defines the correspondence relationship between the hitting distance and the data indicating the take-back amount can be obtained. Therefore, the user can receive a notification with higher accuracy regarding the take-back amount for hitting a ball with the intended hitting distance.

[0020] (6) The control unit prompts the user to perform a swing, records the data indicating the take-back amount in the swing, prompts the user to input the hitting distance of the ball hit by the swing, and saves it in a manner that associates and stores the input hitting distance with the data indicating the recorded take-back amount. In this way, the correspondence relationship between the take-back amount and the hitting distance of the ball can be defined based on the swing of the user himself / herself. Also, the relationship between the take-back amount and the hitting distance can change depending on the physical condition on the day of play and the condition of the golf course. If the relationship between the take-back amount and the hitting distance is registered before the start of play, a notification can be received based on the relationship between the take-back amount and the hitting distance suitable for the condition on that day.

[0021] In this way, the correspondence relationship between the take-back amount and the hitting distance of the ball can be defined based on the swing of the user himself / herself. Also, the relationship between the take-back amount and the hitting distance can change depending on the physical condition on the day of play and the condition of the golf course. If the relationship between the take-back amount and the hitting distance is registered before the start of play, a notification can be received based on the relationship between the take-back amount and the hitting distance suitable for the condition on that day.

[0022] (7) Information regarding the strength of the swing specified by the user may be set as a preset value associated with the take-back amount.

[0023] In this way, a setting value related to the take-back amount that determines the strength of the swing can be specified, and a notification corresponding to the specification can be received. In particular, since it is considered correct to adjust the strength of putting not by the force applied at impact but by the swing amplitude, this configuration that can quantify the take-back amount that determines the swing amplitude and receive a notification contributes to the improvement of putting techniques.

[0024] (8) It may further include a display unit, and the display unit may display the setting value and the hitting distance in association with each other.

[0025] In this way, the user can recognize the flying distance according to the set value. The distance to be displayed is preferably in units of stride or club length, and particularly preferably in units of stride. By using the stride or club length, which are distance measuring means allowed to be used during golf play, as the display, the device can be used without interfering with the play.

[0026] (9) The display unit may preferably display in such a manner that a plurality of sets of set values and flying distances can be compared.

[0027] "In such a manner that they can be compared" means that, for example, a list display of a plurality of sets of set values and flying distances may be provided. In this way, abnormal values of the displayed data can be estimated. Also, when attempting to update the flying distance data while the data of the flying distance corresponding to a certain set value registered at the previous play is still stored, by comparing the flying distance when hitting the ball upon receiving a notification with a single set value with the flying distance at the previous registration, it becomes easier to grasp the tendency of how the flying distance is achieved under the conditions of that day. Further, when the flying distance is the same as that at the previous registration, it can be inferred that the flying distances corresponding to other set values displayed in the list are also the same as before, and the registration update work of the flying distance can be simplified.

[0028] (10) The flying distance corresponding to the set value may preferably be configured to be changeable by the user. For example, the user may perform a take-back until receiving a notification by specifying a set value, start the downswing from the amount of take-back at the time of receiving the notification, and register the flying distance of the ball hit at that time to establish the association.

[0029] In this way, the correspondence relationship between the set value and the flying distance can be defined based on the user's own swing. Also, although the relationship between the amount of take-back and the flying distance can vary depending on the physical condition on the day of play and the conditions of the golf course, if the relationship between the set value and the flying distance is registered before the start of play, it is possible to display a guideline for the flying distance corresponding to the set value according to the conditions of that day, and it becomes easier to select a set value that matches the intended flying distance.

[0030] (11) When the control unit detects the slope of the location where the user is and detects an upward slope in the direction of the ball hit, it gives a notification when the take-back amount reaches a larger value compared to the take-back amount for notification at a position with no slope, and when it detects a downward slope in the direction of the ball hit, it controls the notification unit to give a notification when the take-back amount reaches a smaller value compared to the take-back amount for notification at a position with no slope. The control unit may detect the slope based on the output of the detection unit. In this way, on an upward slope, a larger take-back amount can be notified so as to result in a stronger swing, and on a downward slope, a smaller take-back amount can be notified so as to result in a weaker swing. As a result, the user can start the downswing with the take-back amount received in the notification and swing with a take-back amount adjusted according to the slope, and it becomes easier to obtain the aimed flight distance with a sense of distance equivalent to that when on a flat place, and by extension, it becomes possible to improve the number of putts.

[0031]

[0032] (12) The control unit may control the notification unit so that the greater the detected slope, the greater the difference between the take-back amount notified at the location where the user is and the take-back amount notified at a position with no slope.

[0033] In this way, the steeper the upward slope, the larger the take-back amount can be notified so as to result in a stronger swing, and the steeper the downward slope, the smaller the take-back amount can be notified so as to result in a weaker swing. As a result, the user can start the downswing with the take-back amount received in the notification and swing with a take-back amount based on the slope, and it becomes easier to swing with an adjustment suitable for the desired ball flight distance, and by extension, it becomes possible to improve the number of putts.

[0034] (13) In the above (11) or (12), the detection of the slope may be performed at the timing when the address is detected.

[0035] By doing so, it is possible to detect the inclination at the position where the swing is about to be made, and it becomes possible to notify with a take-back amount according to the inclination at that position.

[0036] (14) The detection unit is preferably an acceleration sensor that detects an acceleration sensor, and the data indicating the take-back amount is preferably acceleration data based on the acceleration. The acceleration sensor may output data indicating the acceleration as, for example, three-axis accelerations. The acceleration data may be the acceleration itself detected by the acceleration sensor, but is preferably data obtained by calculating and processing the acceleration detected by the acceleration sensor, and it is particularly good to select data that is easy to identify the movement during the swing.

[0037] (15) It further includes a storage unit that stores the acceleration data when the user takes an address posture, and the control unit detects that the user has taken an address posture based on the acceleration data based on the output of the acceleration sensor and the acceleration data when the user takes an address posture stored in the storage unit, and performs control to notify the user to the effect that the user has taken an address posture.

[0038] By doing so, the user can confirm that they are taking the same address posture as when they registered the acceleration data at the address. If the user registers in advance when taking the correct address posture, the user can receive a notification when taking the correct address posture. Although the way of holding the club, the address posture, and the relationship between the body and the club vary from person to person, they are almost constant for the same person. In a configuration where the device is worn on the wrist as in the configuration of (18) described later, it is particularly good because the user can confirm that not only the angle of the club but also the way of gripping and the state of the grip are the same as when registering. Also the take-back amount can be obtained based on the acceleration data at the address and the acceleration data at the take-back with reference to it.

[0039] In the configuration of (16) and (15), when the control unit detects that the user has taken an address posture, it detects the inclination based on the difference between the acceleration data when the user takes an address posture and the acceleration data stored in the storage unit when the user takes an address posture. When an upward inclination in the direction of the ball hit is detected, a notification is made when a take-back amount larger than the take-back amount notified at a position without inclination is reached. When a downward inclination in the direction of the ball hit is detected, the notification unit is controlled to make a notification when a take-back amount smaller than the take-back amount notified at a position without inclination is reached.

[0040] In this way, the inclination of the place where the user is about to swing can be detected. On an upward slope, a larger take-back amount can be notified so as to make a stronger swing, and on a downward slope, a smaller take-back amount can be notified so as to make a weaker swing. As a result, the user can start a downswing with the notified take-back amount and swing with a take-back amount adjusted according to the inclination. Then, it becomes easier to obtain the aimed flight distance with a sense of distance equivalent to that when on a flat place, and ultimately, it becomes possible to improve the number of putts.

[0041] The data indicating the take-back amount is preferably a value obtained by adding at least one of the magnitude of the acceleration component in the user's back direction and the magnitude of the acceleration component in the vertical direction with a weighting different from the magnitude of the acceleration component in the direction of the ball hit. The weight of each component is preferably determined so that the sensitivity for various swings is about the same.

[0042] In this way, the take-back amount can be obtained in swings with various characteristics, such as a swing along a trajectory in the direction of the ball hit when the user is viewed from above, a swing with an arc that draws the club towards the body during take-back and follow-through. The user can use the device without worrying about the type of swing.

[0043] (18) The "part that moves with the golf swing" to be attached by the attachment member may be a golf club, but it is preferably a part of the user's body, and particularly preferably the wrist. By doing so, the movement of the user's wrist during the swing can be detected by the acceleration sensor, and it becomes easier to determine the movement during the swing. In particular, in the configuration of detecting and notifying the address posture as in (11), it is possible to notify that the user has correctly assumed the address posture unique to the user.

[0044] (19) The notification unit is preferably a vibrator that notifies the user by vibration. By doing so, it is possible to notify the user while observing golf etiquette and without disturbing the play.

[0045] (20) In the program of the present invention, the computer is preferably made to function as the device described in any one of (1) to (19) above.

Brief Explanation of Drawings

[0046]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Mode for Carrying Out the Invention

[0047] 〔First Embodiment〕 FIG. 1 and FIG. 2 are perspective views showing the appearance of the device 10. Further, FIG. 3 is a schematic diagram showing the state in which the device 10 is worn on the wrist of the user U together with the axial direction of the acceleration sensor 112. Further, FIG. 4 is a block diagram showing the configuration of the device 10. The device 10 is configured to be worn on the left wrist of the user U. As shown in FIGS. 1 and 2, the device 10 has an appearance similar to that of a wristwatch, and includes a flat case 110 and a band 120 that holds the case and is fixed to the wrist of the user U. The band 120 is made of a flexible material such as urethane or silicone rubber. The band 120 has a jacket portion 121 and two belts 122a and 122b extending from both ends of the jacket portion 121. The jacket portion 121 is provided with openings for exposing the front, back, and touch switch 150 of the case 110, respectively. A groove is provided in the opening of the jacket portion 121, and the case 110 is fitted and held in this groove. A plurality of small holes 123 (see FIG. 1) are formed in the belt 122a along the longitudinal direction. A fastener 130 for fastening the belt 122b to the belt 122a is joined to the tip of the belt 122b.

[0048] The fastener 130 is formed of a metal such as stainless steel. The fastener 130 includes a buckle 131, a middle plate 133, and a lower plate 135. The middle plate 133 and the lower plate 135 are curved so as to generally follow the wrist when the band 120 is worn on a human wrist. The buckle 131 and the middle plate 133 are connected by passing a shaft rod through a bearing portion 132 protruding from the back surface of the buckle 131 and a through hole 133a formed at one end of the middle plate 133. The middle plate 133 and the lower plate 135 are connected by passing a shaft rod through a through hole 133b formed at the other end of the middle plate 133 and a through hole 135a formed at one end of the lower plate 135. A guide portion 135b for guiding the belt 122a along the concave side of the lower plate 135 is provided at the other end of the lower plate 135.

[0049] On the concave side of the lower plate 135, a positioning projection 135c is protruding. By passing the belt 122a through the guide portion 135b and further passing the positioning projection 135c through one of the small holes 123 of the belt 122a, the lower plate 135 is coupled to the belt 122a. The small hole 123 through which the positioning projection 135 c passes may be appropriately selected according to the thickness of the user's wrist who uses the device 10.

[0050] On the convex side near the end where the guide portion 135b of the lower plate 135 is provided, a locking projection 135d is protruding. The locking projection 135d has a hook-shaped tip and, when the buckle 131, the middle plate 133, and the lower plate 135 are folded, locks into the notch portion 133c of the middle plate 133 and acts to maintain the folded state. With such a configuration, it becomes possible to expand and contract the loop formed by the belts (122a, 122b) and the fastener 130. The user U passes their hand through the loop with the fastener 130 open (that is, in a state where the loop is widened), and then closes the fastener to attach the device 10 to the wrist as shown in FIG. 3.

[0051] On the front surface of the case 110, a display portion 170 is provided. The display portion 170 is constituted by a small liquid crystal panel and displays various types of information such as the operation mode, the remaining battery level, and the clock display under the control of a control portion 115 described later.

[0052] Below the display unit 170 on the front of the case 110, there are patterns indicating a back button 141 and a home button 142 drawn. Overlaid on the display unit 170 and the patterns of the back button 141 and the home button 142, a touch panel 140 for detecting operations by contact with the front of the case 110 is provided. The touch panel 140 detects a so-called swipe operation of pressing down and moving the contact position while touching the surface of the touch panel 140. The operations detected by the touch panel 140 are sent to the control unit 115. The control unit 115 executes processing according to the operations on the touch panel 140. For example, when the touch panel 140 detects a pressing operation at the position where the pattern of the back button 141 is drawn, the control unit 115 recognizes this operation as the pressing of the back button and performs control such as returning to the previous state. Also, on the left side surface of the case 110 (not shown in FIG. 1), a tact switch 150 is provided. The tact switch 150 is a push button switch used for turning the power on / off, determining selected items, etc. The operations and corresponding actions of the touch panel 140 and the tact switch 150 will be described later. Note that the tact switch 150 can also be provided on the right side surface of the case 110. However, if there is a tact switch on the right side surface, when the device 10 is worn on the left hand, there is a risk that the tact switch 150 may be accidentally pressed by the movement of turning the wrist. By providing the tact switch 150 on the left side surface of the case 110, it is possible to make it less likely for an accidental operation to occur due to the movement of turning the wrist. The tact switch 150 is held by the jacket part 121 and is not pressed. In this state, the top of the head does not protrude from the jacket part 121 of the band 120. When trying to press the tact switch 150, it is provided so that the tact switch 150 can be pressed by the elastic deformation of the jacket part 121. In this way, it is possible to suppress the tact switch 150 from being accidentally pressed by an unintended contact.

[0053] On the back of the case 110, a plastic back cover 118 is attached by screwing its four corners with screws 118a. The thickness from the front of the case 110 to the back cover 118 is configured to be thicker than the thickness of the jacket part 121, and the case 110 is held by the jacket part 121 so that its front is at a position almost flush with the outer surface of the jacket part 121. Therefore, in the state where the case 110 is held by the jacket part 121, the back cover 118 protrudes from the jacket part. By making the back cover 118 protrude more than the jacket part 121 in this way, when the user U wears the device 10, it can be made to give the illusion that the thickness of the jacket part 121 is the thickness of the device 10, and it is possible to prevent people who see the device in the worn state from feeling that the thickness of the device 10 is large. A terminal cover 119 is provided at the center of the back cover 118 so as to be openable and closable. When the terminal cover 119 is opened, the mini USB terminal 160 is exposed. The battery 116 can be charged by connecting an AC adapter to this mini USB terminal 160. Also, it can be connected to an external personal computer or the like via a USB cable, and data in the device 10 such as updating the golf course data in the device 10 and importing data into the personal computer can be performed.

[0054] Inside the case 110, as shown in FIG. 4, there are provided a GPS receiver 111 that receives GPS signals from GPS satellites and determines the current position (longitude and latitude), an acceleration sensor 112 that detects triaxial acceleration, a vibrator 113 that gives notifications by vibration, a control unit 115 that controls each component in the device 10, a battery 116 that serves as a power source, and a storage unit 117 that stores programs executed by the control unit 115, golf information such as golf course layouts, and data obtained by various functions under the control of the control unit 115, etc.

[0055] The acceleration sensor 112 outputs acceleration data for each of the three mutually orthogonal axes. The acceleration data for the three axes output by the acceleration sensor 112 is acquired by sampling at the sampling frequency (for example, 50 Hz) set by the control unit 115. The three axial directions of the acceleration sensor 112 are mutually orthogonal. By using the three-axis data output by the acceleration sensor 112, it becomes easier to discriminate the acceleration associated with the swing compared to the case of using a single-axis acceleration sensor. The first axial direction (X-axis) is the downward direction on the display surface of the display unit 170, and hereinafter the acceleration in this axial direction is referred to as Gx. The second axial direction (Y-axis) is the rightward direction on the display surface of the display unit 170, and hereinafter the acceleration in this axial direction is referred to as Gy. The third axial direction (Z-axis) is the normal direction of the display surface of the display unit 170, and hereinafter the acceleration in this axial direction is referred to as Gz.

[0056] The acceleration sensor 112 outputs the magnitudes of the components of the acceleration obtained by synthesizing the gravitational acceleration and the acceleration associated with the motion in each axial direction. When at rest, such as when in the addressed posture, the vector of the gravitational acceleration is decomposed into vectors in the three axial directions, and the magnitudes of the vector components in each axial direction are output. Also, in a non-stationary state such as when swinging, acceleration data obtained by synthesizing the gravitational acceleration and the acceleration due to the take-back motion is output.

[0057] Figure 3 shows the state in which the device 10 is worn by the user U. The device 10 is worn such that the back cover 118 of the case 110 follows along the back side of the user U's left wrist. As a result, the device 10 is generally fixed to the user U's left wrist in an orientation where the X-axis is the direction from the little finger to the thumb of the user U's left hand, the Y-axis is the direction from the elbow to the fingertip along the user U's forearm, and the Z-axis is the direction substantially perpendicular to the back side of the user U's left wrist.

[0058] The vibrator 113 vibrates in response to control by the control unit 115 and notifies the user wearing the device 10.

[0059] The battery 116 is a rechargeable secondary battery like a rechargeable battery and can be charged from the miniUSB terminal 160.

[0060] The memory unit 117 may be a non-removable internal memory device, or may be a slot unit (including the function of reading and writing) for mounting a removable recording medium such as a micro SD card slot. In this example, it is described that the memory unit 117 is provided as an internal memory device. Specifically, a non-volatile memory is used as the memory unit 117. The memory unit 117 stores a program that defines the control by the control unit 115, data used in the program, golf course information including data about the location of the golf course and the course (for example, the course layout of each hole, the position of hazards on the course such as the greens and bunkers of the golf course), etc. Note that the golf course information can be, for example, the information of the layout images from the 1st hole to the 18th hole described in Japanese Patent Laid-Open No. 7-57189, and the latitude and longitude data on the layout images, or the data regarding the layout, location, characteristics of each hole of the golf course, etc. described in Japanese Patent Laid-Open No. 2003-339929.

[0061] The control unit 115 includes a CPU and various peripheral circuits, etc. By the CPU executing the program stored in the memory unit 117, the control unit 115 appropriately utilizes the information input from the above various input devices (GPS receiver 111, acceleration sensor 112, touch panel 140, tact switch 150, mini USB terminal 160, etc.) and the data stored in the memory unit 117 to control the output devices (display unit 170, memory unit 117, mini USB terminal 160, etc.) or save the result of the processing.

[0062] The device 10 has two operation modes: a golf course guidance mode and a green mode. The golf course guidance mode is a mode used when playing on a golf course, and automatically records play information such as scores and ball hitting positions. The green mode is a mode that notifies the user U according to the take-back amount during putting. These operation modes can be switched by operating the touch panel 140 or the tact switch 150.

[0063] Next, the control executed by the control unit 115 regarding the operation of the apparatus 10 will be described. In the following description, processes for which the subject is not specified are under the control of the control unit 115.

[0064] Prior to use, the user U needs to charge the battery 116 in advance. When the control unit 115 recognizes that the tact switch 150 has been long-pressed for 2 seconds or more in the power-off state with the battery 116 fully charged, the control unit 115 performs control to turn on the power to each unit connected to the control unit 115, and displays the home screen shown in FIG. 5(a) on the display unit 170. The home screen includes a main course button B1 for selecting the golf course guidance mode and a green button B2 for selecting the green mode. When it is recognized that the home button 142 has been touched during operation in each operation mode or during various settings, the screen returns to this home screen. Further, when the control unit 115 recognizes that the tact switch 150 has been long-pressed for 5 seconds or more in the power-on state, the control unit 115 draws a predetermined end screen on the display unit 170 and then performs control to turn off the power to each unit connected to the control unit 115.

[0065] After power-on, under the control of the control unit 115, the display unit 170 displays various menus to receive operations by the user U. As an operation method for selecting a menu, for the menu displayed as a button within the screen of the display unit 170, the menu corresponding to the button being displayed is selected by pressing the button. Also, as an operation for selecting and determining a menu displayed on the display unit 170 as a list of a large number of selection items that do not fit within one screen, while scrolling the items displayed by a swipe operation of the touch panel 140, the item to be selected is changed, and the item being selected is determined by a short press of the tact switch 150. At this time, when a display area sufficient to display three items of the menu within the screen can be secured, the three items are arranged vertically in three rows and displayed, with the central item being the selected item. The central item being selected is displayed with its color inverted from the upper and lower two items so that the user can easily recognize that it is being selected. When the upper-end item is selected, nothing is displayed in the top row, and conversely, when the lower-end item is selected, nothing is displayed in the bottom row. Also, when the available display area is narrow, only one item being selected is displayed, and other items are selected by a swipe operation up and down or left and right.

[0066] (Golf Course Guidance Mode) When the golf course guidance mode is selected by pressing the home course button B1 on the home screen shown in FIG. 5(a), the operation mode is switched to the golf course guidance mode. In the golf course guidance mode, the GPS receiver 111 is operated to execute the golf course navigation function. When the golf course guidance mode is selected, the golf course selection screen shown in FIG. 5(b) is displayed. On the golf course selection screen, as a candidate for the golf course to be selected, the golf course (Tokyo International GC in this example) closest to the current location acquired by the GPS receiver 111 is automatically displayed. Also, It is also possible to search for and select a golf course by manual search. The user U operates the touch panel 140 and the tact switch 150 to determine the golf course to play on and the OUT / IN of the golf course.

[0067] When the selection of the golf course is completed, the navigation screen shown in Fig. 5(c) is displayed on the display unit 170 and the guidance is started. On the navigation screen, the hole number, par score, current score, distance to the target object (such as the green edge, cup, hazard, etc.) of the current hole are displayed. The discrimination of the hole is performed based on the position information acquired by the GPS receiver 111 and the golf course information. Specifically, the latitude and longitude of the current position acquired by the GPS receiver 111 are queried against the course map data in which the course layout of the golf course is associated with the latitude and longitude to discriminate the current hole. The user U can check the information and score of the hole during play by looking at the navigation screen. The control unit 115 periodically acquires the position information from the GPS receiver 111 and updates the display information of the navigation screen according to the acquired position information. When it is recognized that the touch switch 150 has been pressed while the navigation screen is being displayed in the golf course guidance mode, the score is incremented by one stroke, and point registration is performed in which the position information output by the GPS receiver 111 is associated with the score and recorded in the storage unit 117 as the hitting position.

[0068] (Green mode) When the green mode is selected by pressing the green button B2 on the home screen shown in Fig. 5(a), the operation mode is switched to the green mode. Also, when the touch panel 140 is long-pressed for 2 seconds or more while the navigation screen in the golf course guidance mode is being displayed, the switching screen shown in Fig. 5(d) is displayed. The switching screen includes a green button B3 for switching to the green mode and a next hole button B4 for manually switching the hole to be navigated to the next hole. When a touch on the green button is recognized, the operation mode is switched to the green mode. When using the green mode outside of a round (e.g., at home or at a practice range), it is convenient to switch to the green mode from the home screen. When using the green mode during a round while using the golf course guidance mode, it is convenient to switch to the green mode via the switching screen.

[0069] When entering the green mode, first display the green mode menu screen shown in Fig. 6(a). On the green mode menu screen, the address registration menu, pattern registration menu, pattern practice menu, and registered data deletion menu are displayed so that they can be selected by swiping the touch panel 140. Note that in Fig. 6(a), the registered deletion menu is outside the screen. When touching the return button 141 in the state where the green mode menu screen is displayed, the green mode is terminated and the user returns to the previous screen (the home screen or the switching screen depending on the operation when switching to the green mode).

[0070] The address registration menu is a menu for executing an address registration function for registering the output data of the acceleration sensor 112 when the user U takes an address posture (hereinafter simply referred to as address registration). When no address registration has been performed, the pattern registration menu, pattern practice menu, and registered data deletion menu are disabled from being selected.

[0071] In the address registration menu, the acceleration data at the time of address, which is the reference for measuring the take-back amount, is registered. By performing address registration with the device 10 worn on the wrist as in this embodiment, acceleration data corresponding to the address posture of the individual user U performing the address registration can be registered. As will be described later, when measuring the take-back amount, when it is recognized that the address posture has been taken because acceleration data close to the acceleration data registered in the address registration has been maintained for a predetermined time, the user is notified. Therefore, by registering the correct address posture for himself / herself, the user U can confirm that he / she has taken the correct address posture and then start swinging.

[0072] When the tact switch 150 is pressed while the address registration menu is selected, the address registration screen shown in FIG. 6(b) is displayed to prompt the user U to assume an address posture, and the user U waits for the address posture after the tact switch 150 is pressed for a predetermined waiting time. Then, if the variation in the output data of the acceleration sensor 112 remains within a predetermined range (e.g., 0.1G (where G represents the acceleration due to gravity and 1.0G corresponds to 9.80665 m / s2)) for all three axes continuously for a predetermined determination time (e.g., 2 seconds), it is recognized that the address posture has been assumed, the vibrator 113 is vibrated to notify the user that the address has been detected, and the average value of the output data of the acceleration sensor 112 (e.g., 100 values in the case of sampling at 50 Hz for 2 seconds) at the determination time when the variation in the output data of the acceleration sensor 112 has remained within the predetermined range for all three axes is stored in the storage unit 117 for each of the three axes. Also, a message indicating that the address has been registered is displayed on the display unit 170 for 1 second, and then the screen returns to the address registration screen.

[0073] The determination time for determining that the address posture has been assumed is preferably set to 2 seconds. The inventors have found that the device 10 remains stationary for about 2 seconds during the address, and this time has been set as a time that is not too burdensome for the user U to remain stationary, so it is suitable for detecting that the address posture has been assumed. Also, the waiting time after pressing the tact switch is preferably set to 10 seconds. When the user U is not accustomed to operating the device 10 or when the user U is concerned about the grip, it takes about 5 seconds to pick up the club after pressing the tact switch, and then it is necessary to ensure a stationary time of 2 seconds. By setting the waiting time to 10 seconds, sufficient time is ensured for assuming the address posture, and the next process can proceed without giving the user U a sense of discomfort when the address cannot be detected.

[0074] After the address registration is completed, on the address registration screen, in addition to the address registration menu, the putter registration menu, the putter practice menu, and the registered data deletion menu can be selected. Note that it is not necessary to perform address registration every time the device 10 is started. If the triaxial acceleration data at the time of past address registration is stored in the storage unit 117, it is regarded as having been registered. Since the triaxial acceleration data registered for the address is stored in the storage unit 117, which is a non-volatile memory, the triaxial acceleration data at the time of past address registration is stored in the storage unit 117 unless it is overwritten or deleted. When a different user U uses the device 10 than when the address was last registered, or when the same user U changes to a different grip or address posture than at the time of address registration, it is desirable to re-perform the address registration.

[0075] On the other hand, if the variation in the output data of the acceleration sensor 112 does not fall within the predetermined range for all three axes even after the waiting time has elapsed and the address cannot be detected during the determination time, the screen returns to the address registration screen, but the putter registration menu, the putter practice menu, and the registered data deletion menu remain in a non-selectable state.

[0076] In the putter registration menu, the relationship between the take-back amount during putting and the flight distance of the hit ball is registered. When the tact switch 150 is briefly pressed while the putter registration menu is selected, the putter registration start screen shown in Fig. 6(c) is displayed. When a short press of the tact switch 150 is recognized while the putter registration start screen is displayed, similar to the address registration, the address instruction screen shown in Fig. 6(d) is displayed to prompt the user U to assume the address posture. Then, when the value of the acceleration output by the acceleration sensor 112 falls within the allowable value from the acceleration at the time of address registration stored in the storage unit 117 by the address registration, it is recognized that the address posture has been assumed, the vibrator 113 is vibrated to notify the user that the address has been detected, and the hitting instruction screen prompting putting shown in Fig. 6(e) is displayed on the display unit 170. Note that when the return button 141 is pressed while the putter registration start screen is displayed, the green mode menu screen Return to the previous screen. Also, if the address cannot be detected within a predetermined waiting time (e.g., 10 seconds) after the tact switch 150 is short-pressed while the putter registration start screen is being displayed, return to the putter registration start screen and wait for the tact switch 150 to be short-pressed again.

[0077] After the address is detected, in a state where the hitting instruction screen is displayed, the user U adjusts the swing width by himself / herself to perform putting. After the address is detected, the control unit 115 controls to start recording the acceleration Gz in the Z-axis direction. When the device 10 with the axial direction defined as described above is worn, when a takeback is performed, the acceleration Gz tends to decrease, so the acceleration Gz shows a decreasing trend for a while. After that, when the takeback is finished and the downswing starts, the acceleration Gz tends to increase and increases to a value exceeding the acceleration Gzad at the time of address detection. When the acceleration Gzad at the time of address detection is reached again, the control unit 115 controls to end the recording of the acceleration Gz. The value ΔGz = Gzmin - Gzad obtained by subtracting the acceleration Gzad at the time of address detection from the minimum value Gzmin of the recorded acceleration Gz during the takeback is used as an index of the magnitude of the takeback. ΔGz is an example of "data indicating the amount of takeback".

[0078] After a predetermined time (e.g., 5 seconds) has elapsed since the address detection, a carry distance registration screen (Fig. 6(f)) is displayed to confirm and select whether to save the measured acceleration Gz in association with the distance. In the central part of the carry distance registration screen, a carry distance selection list L1 for selecting the carry distance D of the putt by padding is displayed. The carry distance D is an example of "information regarding the strength of the swing". The carry distance selection list L1 can be selected by left and right swipe operations. The carry distance D in the carry distance selection list L1 is displayed in units of steps. While rounding the golf course, there are limitations on the available distance measuring means, but if it is the number of steps, the user U can measure it without using an instrument or the like. Therefore, if the carry distance selection list L1 also displays and allows selection of the carry distance D in units of steps, the user U can easily select an appropriate carry distance. When registering, the user U measures the carry distance of the putt after the address detection and selects the measured distance in the carry distance selection list L1. When the tact switch 150 is pressed with the carry distance D selected, the value ΔGz obtained by the putt after the address detection and the carry distance D selected by the user U are associated and stored in the storage unit 117. Then, a message indicating that the registration has been completed with the selected distance is displayed for 1 second, and then the user returns to the putter registration start screen. Also, when the return button 141 is pressed while the carry distance registration screen is being displayed, the user returns to the putter registration start screen. For example, if the user U does not wish to register the carry distance D, such as when the putt fails, the user can return to the putter registration start screen by pressing the return button 141 and start over.

[0079] The above putter registration procedure can be performed multiple times, and multiple combinations of the carry distance and the value ΔGz can be registered. From the registered combinations of the carry distance and the value ΔGz, a mathematical formula approximating the relationship between the carry distance and the value ΔGz is obtained and stored in the storage unit 117. The mathematical formula approximating the relationship between the carry distance and the value ΔGz is preferably obtained by the least squares method, and this mathematical formula is preferably a linear function passing through the origin, for example. By storing the mathematical formula approximating the relationship between the carry distance and the value ΔGz, the correspondence relationship between the carry distance of the putt and the data indicating the takeback amount can be stored with a small capacity.

[0080] Not only are there individual differences for each user U, but the relationship between the take-back amount and the flight distance can vary depending on the physical condition on the day of play, the conditions of the golf course, etc. Therefore, before starting play, it is desirable to register the relationship between the latest take-back amount and the flight distance, for example, on the practice green of the golf course.

[0081] In the registration data deletion menu, before registering the relationship between the latest take-back amount and the flight distance, the old registration data is deleted in a batch. When the procedure for putter registration is performed multiple times and combinations of multiple flight distances and the value ΔGz are stored in the storage unit 117, all combinations of flight distances and the value ΔGz are deleted, and the mathematical formula approximating the relationship between the flight distance and the value ΔGz is also deleted from the storage unit 117. When the tact switch 150 is pressed while the registration data deletion is selected on the green mode menu screen, the user U is asked for confirmation of the intention to delete the data on the data deletion screen in Fig. 7(a). If it is confirmed that the data is to be deleted, all combinations of the flight distances and the value ΔGz registered by putter registration are deleted and the screen returns to the green mode menu screen. On the other hand, if it is confirmed that the data is not to be deleted, the screen returns to the green mode menu screen without deleting the data.

[0082] In the putter practice menu, a notification of the take-back amount is made according to the flight distance of the shot designated by the user U. The putter practice menu can be used to confirm the take-back amount suitable for the targeted flight distance when making a dry swing before actually hitting the ball. Also, the user U may use the putter practice so as to receive the notification not only in the dry swing but also in the swing for hitting the ball. However, in order to prevent the concentration from being interrupted by the notification, the putter practice may not be used in the swing for hitting the ball.

[0083] When the tact switch 150 is pressed while the putting practice menu is selected, the target distance selection screen shown in FIG. 7(b) is displayed. In the center of the target distance selection screen, a target distance selection list L2 for selecting the target distance, which is the distance to be hit in the putting to be performed next, is displayed. In the target distance selection list L2, three target distances that are selectable options are displayed within the screen of the display unit 170, and the middle row of these is displayed in reverse video as being selected. The items in the target distance selection list L2 can be selected by a swipe operation up and down. The target distances in the target distance selection list L2 are displayed in units of steps. While playing a round of the golf course, there are limitations on the distance measuring means that can be used, but since the user U can measure the number of steps to the target without using an instrument or the like, if the target distance menu L2 also displays and allows selection of the target distance in units of steps, the user U can easily select an appropriate target distance. When the tact switch 150 is briefly pressed while a target distance is selected, the selected target distance is determined, the measurement start screen in FIG. 7(c) is displayed, and based on a mathematical formula that approximates the relationship between the flight distance and the value ΔGz, a target value of the value ΔGz corresponding to the determined target distance is obtained. By using the mathematical formula, the target value can be calculated even when the value ΔGz corresponding to the selected target distance is not stored in the storage unit 117.

[0084] When a short press of the tact switch 150 is recognized while the measurement start screen is being displayed, the address instruction screen in Fig. 7(d) is displayed to prompt the user U to assume an address posture. Then, when the value of the acceleration output by the acceleration sensor 112 falls within the allowable value from the acceleration at the time of address registration stored in the storage unit 117 by address registration, it is recognized that the address posture has been assumed, the vibrator 113 is vibrated to notify the user that the address has been detected, and a swing instruction screen that prompts padding as shown in Fig. 7(e) is displayed on the display unit 170. By notifying when the address is detected, the user U can confirm that the same address as at the time of address registration has been formed. In particular, in this embodiment, since the device 10 is worn on the wrist, the user U can confirm that the same address posture as at the time of registration is assumed, including not only the angle of the club but also the way of gripping and the state of the grip.

[0085] After address detection, the control unit 115 controls to start recording the acceleration Gz in the Z-axis direction. When takeback is started in the same manner as described for the pattern registration menu, the acceleration Gz shows a decreasing trend. As the user U starts takeback and gradually increases it, the acceleration Gz continues to decrease, and the change amount from the Gz at the time of address reaches the target value of the value ΔGz. When the target value of the value ΔGz is reached, the control unit 115 recognizes that the takeback amount suitable for the target distance has been reached, and vibrates the vibrator 113 to notify the user U to start the downswing. The user U can recognize that the downswing should be started with the takeback amount when this notification is received. In addition, if the address cannot be detected within a predetermined waiting time (for example, 10 seconds) after the tact switch 150 is short-pressed while the measurement start screen is being displayed, the display returns to the target distance selection screen and waits for the target distance to be selected.

[0086] With the above control, in the putting practice menu, a notification of the take-back amount is given according to the hitting distance specified by the user U. By swinging with this notification as a reference, the user U can adjust the swing amplitude and increase or decrease the hitting distance. In this way, the user U can receive a notification when the take-back amount corresponding to the specified hitting distance is reached. Therefore, by starting the downswing with the take-back amount at which the notification is received, a swing can be performed with a stable take-back amount. It is said that the sense of distance in putting is adjusted not by the strength of the force applied at impact but by the swing amplitude. Therefore, by notifying to stabilize the take-back amount during putting, the improvement of putting can be supported. For example, when it is 4 steps from the current position of the ball to the cup, when the take-back amount suitable for the hitting distance of 4 steps is reached, a notification to that effect can be received, and the downswing can be started from there. As a result, the ball can be hit with the strength corresponding to 4 steps.

[0087] 〔Second Embodiment〕 The second embodiment of the present invention relates to an apparatus 10 that, similar to the apparatus 10 of the first embodiment, gives a notification according to the take-back amount to the user U during putting and supports golf play. Hereinafter, the description will focus on the parts different from the apparatus 10 of the first embodiment.

[0088] The control regarding the appearance, configuration, wearing method, and operation of the apparatus 10 is the same as that of the apparatus 10 shown in FIGS. 1 to 4, except for the control in the green mode described below.

[0089] In the device 10 of the second embodiment, the storage unit 117 stores in advance, as an index of the take-back amount during putting, a plurality (for example, 20) of levels in association with target values of a value ΔGz, which is an example of "data indicating the take-back amount". Here, the value ΔGz is, as in the first embodiment, a value ΔGz = Gzmin - Gzad obtained by subtracting the acceleration Gzad at address detection from the minimum value Gzmin of the recorded acceleration Gz at take-back. Also, the level is an example of "information regarding the strength of the swing".

[0090] The levels are assumed to be the angles of take-back shown in Table 1, and target values of the value ΔGz corresponding to the standard grip, address posture, and the angle of take-back in the swing are stored in the storage unit 117. The correspondence between the level and the target value of the value ΔGz is fixed.

[0091]

Table 1

[0092] The levels are associated with smaller angles as the numerical values are smaller. And in the range where the angle is small (2 to 30 degrees), the levels are provided in fine steps of about 2-degree increments, and in the range where the angle is large (30 to 70 degrees), the levels are provided in coarser 5- to 10-degree increments. Fine adjustment of the flight distance becomes more important when approaching the cup on the green. By providing the levels in the small-angle range with fine-angle steps, it becomes easier to make fine adjustments in short-distance putting. On the other hand, the large-angle range corresponds to putting over a considerably long distance, and in actual play, it is more realistic to assume that the ball is brought closer to the cup periphery to aim for the cup with the next put rather than directly aiming for the cup with the current put. In such a usage, by providing the levels in the large-angle range with coarse-angle steps, the user U can make a rough distance adjustment without spending much time on the setting operation. This correspondence between the level and the angle cannot be changed by the user U This is the case. Note that the correspondence between the level and the angle is not always accurate when the grip, the address posture, the swing, etc. are not standard. Therefore, the specific magnitude of the angle corresponding to the level is not presented to the user U, and it is advisable to simply indicate it sensuously by the numerical value of the level.

[0093] Hereinafter, regarding the operation of the apparatus 10 of the second embodiment, the control executed by the control unit 115 will be described. In the following description, the processes for which the subject is not specified are by the control of the control unit 115. The functions and operations in the golf course guidance mode and the operations until entering the green mode are the same as those of the apparatus 10. The description thereof will be omitted to avoid duplication.

[0094] When entering the green mode, first, the green mode menu screen shown in Fig. 8(a) is displayed. On the green mode menu screen, a button B5 for selecting the address registration menu and a button B6 for selecting the putter measurement menu are displayed so as to be selectable by touching the touch panel 140. The address registration menu is a menu for executing an address registration function for registering the output data of the acceleration sensor 112 when the user U takes an address posture, and enables address registration in the same manner as described for the apparatus 10 of the first embodiment. In a state where the address registration has not been performed, the putter measurement menu is made unselectable, and when the address registration is performed, the selection of the putter measurement menu is enabled.

[0095] In the putter measurement menu, user U selects an arbitrary level, and a notification of the take-back amount is made according to the level. Also, the correspondence between each level and the flight distance can be registered. When button B6 is touched on the green mode menu screen, the level selection screen shown in Fig. 8(b) is displayed. In the central part of the level selection screen, a plurality of levels that are indicators of the strength of putting and a level selection list L3 for selecting a step batch reset menu for collectively deleting the flight distance D associated with each level are displayed. In the level selection list L3, three levels that are selectable items are displayed within the screen of the display unit 170, and the central row among them is displayed in reverse as being selected. The items in the level selection list L3 can be selected by a swipe operation up and down. As options, levels 1 to 20 are displayed in ascending order from the top row, and the step batch reset menu is displayed in the bottom row. In order to avoid accidentally resetting the steps due to an incorrect operation, it is preferable to display levels 1 to 3 at the top in the initial state. The flight distance D can be displayed in association with each level in the level selection menu. The flight distance D associated with the level displays the one registered by the registration of the flight distance described later, and for a level for which the corresponding flight distance D is not registered, a display indicating that it is not registered (for example, "※※ steps" shown to the right of the level in Fig. 8(b)) is made. While rounding the golf course, there are limitations on the distance measurement means that can be used, but for the number of steps, user U can measure without using an instrument or the like. Therefore, if the flight distance D displayed in association with the level in the level selection list L3 is also displayed and selectable in units of the number of steps, user U can easily select the level corresponding to the appropriate flight distance D. By displaying a list using such a level selection list L3 so that the level and the flight distance D can be compared, user U can easily recognize whether the flight distance D corresponding to each level is registered or not. Also, by displaying levels 1 to 20 in ascending order in the level selection list L3, it is possible to make it easier for user U to recognize abnormal values of the registered flight distance D. For example, when confirming the flight distance D registered in ascending order from level 1, if the flight distance D does not increase monotonically with the increase in the level, user U can determine that the registered flight distance D contains an abnormal value.

[0096] When the tact switch 150 is short-pressed with a level selected, the selected level is determined and the measurement / registration selection screen is displayed. FIG. 8(c) shows an example of the measurement / registration selection screen when level 2 is selected. On the measurement / registration selection screen, the selected level and the distance corresponding to the level are displayed, and buttons B7 for selecting the measurement menu and B8 for selecting the fly distance registration menu are displayed so as to be selectable by touching the touch panel 140. Since the fly distance D is not registered for level 2 at this point, as shown in FIG. 8(c), it is displayed as "※※ steps" so that the user U can easily recognize that the fly distance D is not registered. When the return button 141 is pressed while the measurement / registration selection screen is displayed, the level selection screen is returned to.

[0097] The measurement menu notifies the take-back amount corresponding to the selected level. This measurement menu can also be used during the green practice swing or when hitting the ball, and can also be used to associate the fly distance D with the level.

[0098] When the touch to the measurement menu on the measurement / registration selection screen is recognized, the address instruction screen in FIG. 8(d) is displayed to prompt the user U to take an address posture. In addition to the display prompting the user to take an address posture, an end button is displayed on this address instruction screen. When the touch to the end button is recognized, the screen returns to the measurement / registration selection screen. When the user U takes an address posture while the address instruction screen in FIG. 8(d) is displayed and the value of the acceleration output by the acceleration sensor 112 falls within the allowable value from the acceleration at the time of address registration stored in the storage unit 117 by address registration, it is recognized that the address posture has been taken, the vibrator 113 is vibrated to notify the user that the address has been detected, and the display unit 170 displays a swing instruction screen prompting a swing as shown in FIG. 8(e).

[0099] After the address is detected, the control unit 115 controls to start recording the acceleration Gz in the Z-axis direction. When the take-back is started in the same manner as described for the pattern registration in the first embodiment, the acceleration Gz shows a decreasing trend. As the user U starts the take-back and gradually increases the take-back, the acceleration Gz continues to decrease, and the change amount from Gz at the address reaches the target value of the value ΔGz. When the target value of the value ΔGz is reached, the control unit 115 recognizes that the take-back amount suitable for the target distance has been reached, and notifies the user U to start the downswing by vibrating the vibrator 113. The user U can recognize that the downswing should be started with the take-back amount when receiving this notification, and can also actually perform the putting to confirm the flight distance.

[0100] When it is detected that the target value of the value ΔGz has been reached, return to the address instruction screen in FIG. 8(d) and wait for the address posture to be taken again. Also, wait for the target distance to be selected. If it cannot be detected that the value ΔGz has been reached within a predetermined waiting time (for example, 10 seconds) after the address is detected, return to the address instruction screen in FIG. 8(d) and wait for the address posture to be taken. By controlling to return to the address instruction screen in FIG. 8(d) in this way, repeated measurement can be performed by simply retaking the address posture without any particular operation. For example, when repeatedly performing a practice swing to confirm an appropriate take-back amount before hitting the ball, or when making a mis-hit during the registration of the flight distance D and putting again, re-measurement is possible simply by taking the address posture without any particular operation.

[0101] In the flight distance registration menu, the flight distance D is registered in association with the selected level. When a touch to the flight distance registration menu is recognized on the measurement / registration selection screen, the flight distance registration screen of FIG. 8(f) is displayed. The user U performs padding upon receiving a notification of the take-back amount corresponding to the selected level by measurement, confirms the flight distance D in the padding, and then touches the registration menu when registering the flight distance D in association with the level. In the central part of the flight distance registration screen, a flight distance selection list L4 for selecting a step count reset menu for resetting the flight distance D of the ball hit by padding and the flight distance D registered in association with the selected level is displayed. The flight distance D in the flight distance selection list L4 is displayed in units of steps. While rounding the golf course, there are limitations on the distance measuring means that can be used, but for the number of steps, the user U can measure without using an instrument or the like. Therefore, if the flight distance selection list L4 also displays and allows selection of the flight distance D in units of steps, the user U can easily select an appropriate flight distance. Also, it is easy to set a long distance quickly in the device 10 according to the user U's stride, and when the user U sets a distance estimated by visual estimation in the device 10, the user U can set a relatively accurate distance in the device 10 based on their own sense. The flight distance selection list L4 displays three selection items within the screen of the display unit 170, and the central row of these is highlighted and displayed in reverse. The items of the flight distance selection list L4 can be selected by a swipe operation up and down. As selection options, the number of steps from 1 step to 50 steps as options for the flight distance D are displayed in ascending order from the top row, and a step count reset menu for deleting the number of steps associated with the level is displayed in the bottom row. To avoid accidentally resetting the number of steps due to an incorrect operation, it is advisable to display the top 1 step to 3 steps in the initial state. and it is easy to set in the device 10, and when the user U sets a distance estimated by visual estimation in the device 10, the user U can set a relatively accurate distance in the device 10 based on their own sense. The flight distance selection list L4 displays three selection items within the screen of the display unit 170, and the central row of these is highlighted and displayed in reverse. The items of the flight distance selection list L4 can be selected by a swipe operation up and down. As selection options, the number of steps from 1 step to 50 steps as options for the flight distance D are displayed in ascending order from the top row, and a step count reset menu for deleting the number of steps associated with the level is displayed in the bottom row. To avoid accidentally resetting the number of steps due to an incorrect operation, it is advisable to display the top 1 step to 3 steps in the initial state.

[0102] When the tact switch 150 is pressed with the flight distance D selected, the selected flight distance D is stored in the storage unit 117 in association with the selected level, and the measurement / registration selection screen is returned. At this time, on the measurement / registration selection screen, as shown in Fig. 9(a), the flight distance D registered together with the selected level is displayed. Also, when the return button 141 is pressed to return from the display state of the measurement / registration selection screen to the level selection screen, as shown in Fig. 9(b), the flight distance D registered in association with the level in the level selection list L3 is displayed. It is not necessary to register the flight distance D for all levels, and the user U may register the flight distance D for some levels that the user wishes to select. For example, by registering the flight distance D at a fixed level each time, it is possible to grasp the rolling ease of the hit ball under the conditions of that day. The level selection list L3 is displayed in a list so that the level and the flight distance D can be compared. When trying to update the data of the flight distance D in a state where the data of the flight distance D at the previous play is registered as the data corresponding to a certain level, it is possible to easily grasp the tendency of the way the flight distance comes out under the conditions of that day by comparing the actual flight distance when the ball was hit upon receiving a notification at one level with the flight distance D at the previous registration. Also, when the flight distance is the same as at the previous registration, it can be inferred that the flight distances corresponding to the other set values displayed in the list are also the same as the previous ones, and the registration update work of the flight distance can be simplified.

[0103] In the level selection screen, when the tact switch 150 is briefly pressed with the step count batch reset menu selected, the user U is asked for confirmation of the intention to delete the step counts associated with all levels on the data deletion screen similar to Fig. 7(a). If the intention to delete is confirmed, all the step count data stored in the storage unit 117 in association with the levels is deleted and the level selection screen is returned. On the other hand, if the intention not to delete the data is confirmed, the level selection screen is returned without deleting the data as it is.

[0104] With the control as described above, in the apparatus 10 of the second embodiment, a notification of the take-back amount is made according to the level specified by the user U. The user U can receive the notification when the take-back amount corresponding to the specified level is reached. Therefore, by starting the downswing with the take-back amount at which the notification is received, the swing can be performed with a stable take-back amount. Since it is considered correct to adjust the strength of padding by the swing amplitude rather than the force applied at impact, the configuration of this embodiment that can quantify the take-back amount that determines the swing amplitude and receive the notification contributes to the improvement of padding technology. Also, by registering the flying distance in association with the level, the user can recognize the flying distance corresponding to the level. Then, the user U can substantially specify the flying distance and receive a notification of the take-back amount corresponding to that flying distance.

[0105] 〔Third Embodiment〕 The third embodiment of the present invention relates to an apparatus 10 that, like the apparatuses 10 of the first and second embodiments, notifies the user U of the take-back amount according to the take-back amount during padding to assist in golf play. The appearance, configuration, and wearing method of the apparatus 10 are the same as those of the apparatus 10 shown in FIGS. 1 to 4. Hereinafter, the description will focus on the point of using data indicating a take-back amount different from that of the apparatuses 10 of the first and second embodiments and the accompanying changes. The description will focus on the point of using data indicating a take-back amount different from that of the apparatuses 10 of the first and second embodiments and the accompanying changes.

[0106] The movement of the putter head when putting (hereinafter also referred to as the stroke type) varies among players. For example, as shown in Fig. 10(a), there is a straight type in which the head is moved straight along the fly ball line direction (the dashed-dotted line in the figure) which is the direction of the hit ball's progress, and as shown in Fig. 10(b), there is an arc type in which the head is moved to draw an arc, which are typical movements of the head. In addition, there is also a semi-arc type in which the head is moved in an arc looser than the arc type. These stroke types do not have a single ideal movement, and putters with shapes suitable for each stroke type are provided. In addition to the variations in the stroke type as viewed from above as described above, when taking back, there are players who pull the club head along the ground without lifting it while the swing width is small, and there are also players who lift the head from the initial stage of the take-back.

[0107] Thus, where swings are performed in various stroke types, the inventors have found that there are the following differences in the acceleration detected by the acceleration sensor 112 due to differences in the stroke type. In the case of the straight type, as the take-back amount increases, in the top view shown in Fig. 11(a), the head moves backward along the fly ball line direction (the dashed-dotted line in the figure), and at the same time, as shown in the side view (Fig. 11(b)), it is pulled up relatively largely in the vertical direction. On the other hand, in the case of the arc type, as shown in the top view (Fig. 12(a)), when taking back, the head deviates from the fly ball line direction (the dashed-dotted line in the figure), and as the take-back amount increases, the amount of movement of the head in the direction of the user U's back increases and the amount of movement in the rear direction of the fly ball line is relatively small. Also, in the case of the arc type, as shown in the side view (Fig. 12(b)), the amount of movement of the head in the vertical direction accompanying the increase in the take-back amount is relatively small.

[0108] When the acceleration sensor 112 is arranged such that the three axes are in the directions shown in FIG. 1, when a right-handed user U wears the device 10 on the left hand, the movement of pulling straight backward along the fly ball line direction is mainly detected as the acceleration in the Z-axis direction. Also, the movement of the user U in the back direction is mainly detected as the acceleration in the X-axis direction. Further, the vertical movement is mainly detected as the acceleration in the Y-axis direction. Therefore, in a straight type swing, the displacement amount ΔGz of the acceleration Gz in the Z-axis direction from the address time changes almost linearly with the increase in the take-back amount. On the other hand, in a swing accompanied by the movement of the head in the back direction of the user U, such as an arc type or a semi-arc type, ΔGz does not change linearly with respect to the take-back amount, and the value becomes less likely to change as the take-back amount increases. Also, there are differences in the vertical movement between the straight type and the arc type. In addition, when taking back, there are differences in the components of the acceleration detected in each axis direction between a swing in which the club head is slid along the ground without floating while the swing width is small and a swing in which the club head is floated from a stage where the take-back amount is small.

[0109] Based on such tendencies found by the inventors and the like, it is preferable to use "data indicating the take-back amount" that takes into account the accelerations in the X-axis direction and the Y-axis direction. And it is preferable that the user U using the device 10 is configured to receive a notification according to the take-back amount without being conscious of his or her own stroke type. Therefore, in the present embodiment, not only the acceleration in the Z-axis direction but also the accelerations in the X-axis direction and the Y-axis direction are taken into account, and the swing width determination value S, which is an index whose value changes almost linearly regardless of the stroke type, is used as "data indicating the take-back amount".

[0110] First, the output data (Gx, Gy, Gz) of the acceleration sensor 112 is converted from orthogonal coordinates with three axes of X, Y, and Z to polar coordinates (Gr, Gθ, Gφ). Specifically, the conversion from orthogonal coordinates to polar coordinates is performed by Gr = √(Gx2 + Gy2 + Gz2), Gθ = arcsin(Gz / Gr), and Gφ = arctan(Gy / Gx). Subsequently, the coordinate system is further converted based on the equations Gx’ = cosGφ, Gy’ = cosGθ, and Gz’ = sinGθ. In this further coordinate system conversion by not using Gr, the differences in acceleration caused by the length of the user U's arm and the mounting position of the device 10 can be removed, and it becomes possible to focus on the magnitude and angle of the take-back.

[0111] Subsequently, the index P is calculated as P = 3×Gx’ - 6×Gy’ - Gz’. The index P is an index found as a result of numerous trials and errors by the inventors. By weighting and adding / subtracting the components in each axial direction, a change in the value that almost linearly reflects the take-back amount occurs for various stroke-type swings.

[0112] Subsequently, by referring to the conversion table stored in the storage unit 117 in advance, a determination value S corresponding to the value of the index P is obtained. In the conversion table shown in Table 2, when the direction of increasing the take-back in a general straight-type swing is taken as positive, the index value P in the range corresponding to an angle of approximately -30 degrees to approximately +45 degrees is made to correspond to 170 integer values. Therefore, a difference of 1 in the value of the swing determination value S corresponds to an angle of the take-back of approximately 0.4 degrees. By using the conversion table, the processing can be simplified and the processing time can be shortened.

[0113]

Table 2

[0114] In the device 10 of the third embodiment, the swing determination value S obtained in this way is used as an index of the magnitude of the take-back. That is, the swing determination value S is an example of "data indicating the take-back amount".

[0115] In the device 10 of the third embodiment, as shown in Table 3, the storage unit 117 associates a plurality (for example, 20) of levels with the change amount ΔS of the swing determination value S, and at the time of padding for each level stores in advance as an index of the take-back amount. Note that the level is an example of "information regarding the strength of the swing", and Table 3 is an example of "the correspondence relationship between the information regarding the strength of the swing and the data indicating the take-back amount based on the output of the detection unit".

[0116]

Table 3

[0117] Hereinafter, regarding the operation of the device 10 of the third embodiment, the control executed by the control unit 115 will be described. In the following description, processes for which the subject is not specified are under the control of the control unit 115. In the device 10 of the present embodiment, in the green mode, in the same manner as in the second embodiment, a notification of the take-back amount corresponding to the level specified by the user U is performed. The functions and operations in the golf course guidance mode and the operations until entering the green mode are the same as those of the device 10. Explanation of these will be omitted to avoid duplication.

[0118] When entering the green mode, first, the green mode menu screen shown in FIG. 8(a) is displayed. When the address registration has not been performed, only the address registration menu can be selected. The address registration menu is a menu for executing an address registration function for registering the output data of the acceleration sensor 112 when the user U takes an address posture, and enables address registration in the same manner as described for the device 10 of the first embodiment.

[0119] In the putter measurement menu that can be selected when the address registration has been completed, the user U selects an arbitrary level and notifies the take-back amount according to the level. Also, the correspondence between each level and the flying distance can be registered. When touching the button B6 for selecting the putter measurement menu on the green mode menu screen, a level selection screen (Fig. 8(b)) is displayed. On this level selection screen, select a level. When the tact switch 150 is short-pressed with a level selected, it is determined as the selected level, and a measurement / registration selection screen (Fig. 8(c)) is displayed. When a level is selected, the change amount ΔS corresponding to the level is determined.

[0120] When the touch to the measurement menu is recognized on the measurement / registration selection screen, an address instruction screen as shown in Fig. 8(d) is displayed to prompt the user U to take an address posture. With this address instruction screen displayed, the user U takes an address posture, and the variation in the output data of the acceleration sensor 112 remains within a predetermined range (for example, 0.1G) for all three axes continuously for a predetermined determination time (for example, 2 seconds), and when it falls within the allowable value from the acceleration at the time of address registration stored in the storage unit 117 by address registration, it is recognized that the address posture has been taken, the vibrator 113 is vibrated to notify the user that the address has been detected, and a swing instruction screen prompting a swing as shown in Fig. 8(e) is displayed on the display unit 170. Also, the target value Starg of the swing determination value S is determined as Starg = Sad + ΔS based on the swing determination value Sad at the time of address and the change amount ΔS corresponding to the level.

[0121] After detecting the address, the control unit 115 calculates the swing width determination value S as needed based on the output data of the acceleration sensor 112. When the take-back starts, the swing width determination value S shows an increasing trend. As the user U starts the take-back and gradually increases the take-back, the swing width determination value S continues to increase and eventually reaches the target value Starg. When the swing width determination value S reaches the target value Starg, the control unit 115 recognizes that the take-back amount suitable for the target distance has been reached, and notifies the user U to start the downswing by vibrating the vibrator 113. The user U can recognize that the downswing should be started with the take-back amount at the time of receiving this notification, and can also actually perform the putting to confirm the flying distance. And in the device 10 of the present embodiment, since the swing width determination value S, which is an index considering the accelerations in the X-axis direction and the Y-axis direction as well as the Z-axis direction, is used, the user U can receive a notification of the take-back amount according to the level regardless of the swing stroke type, and can perform a swing with a desired sense of distance. As a result, it becomes easier to obtain the aimed flying distance, and it is expected to improve the number of putts.

[0122] 〔Fourth Embodiment〕 The fourth embodiment of the present invention relates to an apparatus 10 that, similar to the apparatus 10 of the above-described first to third embodiments, notifies the user U of the take-back amount according to the take-back amount during putting and supports golf play. The appearance, configuration, and wearing method of the apparatus 10 are the same as those of the apparatus 10 shown in FIGS. 1 to 4. The apparatus of the present embodiment is different in that it performs control to vary the magnitude of the take-back amount notified according to the inclination in the direction of the progress of the hit ball in the measurement menu, and the other points are the same as those of the apparatus 10 of the third embodiment. Hereinafter, the characteristic parts of the present embodiment will be described. In the apparatus 10 of the fourth embodiment, the inclination is obtained based on the acceleration at the time of address registration. For this reason, the address registration performed by selecting the address registration menu is carried out substantially on a horizontal place (for example, a place without a large inclination such as a practice green on a golf course or a tee ground).

[0123] ​

[0124] In the measurement menu for notifying the take-back amount according to the level, in the third embodiment, the target value Starg of the swing width determination value S is determined as Starg = Sad + ΔS, where Sad is the swing width determination value at the address and ΔS is according to the level. On the other hand, in the fourth embodiment, it is determined by reflecting the inclination correction value Scomp for reducing the influence of the inclination in the traveling direction.

[0125] The inclination correction value Scomp is obtained by the following procedure. First, the inclination in the traveling direction of the hit ball is obtained at the timing when the address is detected. Specifically, the difference (Sad - Sref) between the reference swing width determination value Sref obtained from the output data of the acceleration sensor at the time of address registration stored in the storage unit 117 and Sad obtained from the output data of the acceleration sensor when the address is detected in the swing is calculated as an index indicating the inclination in the traveling direction of the hit ball. When the value of this index is negative, it is an upward inclination, and when it is positive, it is a downward inclination. The magnitude of the inclination is represented by the absolute value of Sad - Sref.

[0126] The inclination correction value Scomp is set as Scomp = (Sad - Sref) × 0.5, and the target value Starg of the swing width determination value S is determined as Starg = Sad + ΔS - Scomp. In this way, in an upward inclination, a larger target value Starg than in a horizontal place is determined, and moreover, the steeper the inclination, the larger the take-back amount is notified. On the contrary, in a downward inclination, a smaller target value Starg than in a horizontal place is determined, and moreover, the steeper the inclination, the smaller the take-back amount is notified.

[0127] In this way, the user U using the device 10 of this embodiment can swing with a take-back amount adjusted in consideration of the inclination of the hitting position. And if putting is performed according to the notification, it becomes easier to obtain the intended flying distance with the same sense of distance as when it was a flat place, and it is expected to improve the number of putts.

[0128] 〔Modification Example of Embodiment〕 Note that the present invention is not limited to the above-described embodiments, and modifications, improvements, etc. are included in the present invention. For example, in the above-described embodiment, the green mode is selected by a manual operation by the user U, but the green mode may be automatically activated. For example, based on the position information of the current position acquired by the GPS receiver 111 and the golf course information stored in the storage unit 117, it is preferable to automatically activate the green mode. For example, when the current position is a practice green of a golf course suitable for using the green mode, or when it is a clubhouse or other gathering place of a golf course where a round is expected to start soon, it is preferable to activate the green mode. Alternatively, instead of automatically activating the green mode, a screen prompting the use of the green mode may be displayed on the display unit 170. In this case, it is particularly preferable to display a menu button for activating the green mode within the screen.

[0129] Also, in each of the above-described embodiments, the user U is notified by the vibration of the vibrator 113 However, in a configuration including a display unit 170 and voice output means such as a speaker or a buzzer, notification may be performed by voice or the like by the voice output means. In a round at a golf course, voice or the like notification is not preferable in view of a play manager, but in a place other than a golf course such as at home, there may be a case where it is preferable to notify by voice or the like. For example, since the vibration notification generates an abnormal vibration in the wrist of the hand holding the golf club, there is a possibility of causing a slight distortion in the grip. Therefore, in an environment where notification by a method other than vibration is permitted, it is preferable to configure so that a method other than vibration can be selected for notification.

[0130] In each of the above embodiments, a notification is made when the value ΔGz indicating the take-back amount reaches the target value. However, a notification may also be made when the target value is not reached and / or even after exceeding the target value. When notifying by the vibration of the vibrator 113, different vibration patterns may be used when the target value is not reached, at the moment of reaching, and after exceeding. Also, when notifying by voice, different sounds may be used to notify when the target value is not reached, at the moment of reaching, and after exceeding.

[0131] In each of the above embodiments, the value ΔGz or the swing width determination value S is used as the "data indicating the take-back amount". However, other indicators may be used as long as they are indicators that change reflecting the take-back amount. For example, the amount of change from the value at the address of Gz - Gy obtained by subtracting the acceleration in the Y-axis direction from the acceleration in the Z-axis direction may be used as the "data indicating the take-back amount", but it is preferable to use a value obtained by adding at least one of the magnitude of the acceleration component in the user's back direction and the magnitude of the acceleration component in the vertical direction with a weighting different from the magnitude of the acceleration component in the progress direction of the ball hit. The weight of each component may be determined so that the sensitivity for various swings is about the same.

[0132] Also, in the above embodiment, when an address cannot be detected within a predetermined waiting time in the address registration menu, it may be configured to notify the user that the address could not be detected. The notification may be made by voice or display, but it is particularly good from the perspective of the play manager to make it by a vibration pattern different from when the address is detected.

[0133] Also, in each of the above embodiments, the distance is displayed in units of steps in the flight distance selection list L1, the target distance selection list L2, the level selection list L3, and the flight distance selection list L4. However, it may be displayed in other units. It is preferable to display the unit using the unit of the distance measuring means that can be used while playing a round of the golf course. For example, it may be displayed using the length of the golf club as the unit.

[0134] Also, in the above-described second embodiment, the target value of the value ΔGz corresponding to each level was fixed. However, the value ΔGz corresponding to each level may be corrected according to the registered acceleration data. For example, there are a standard address posture (see FIG. 13(a)) that forms a triangle when connecting along the arms from both shoulders to the grip, and an address posture (see FIG. 13(b)) that forms a pentagon. The address posture is different for each individual user. When the address posture is different, the orientation of the device 10 with respect to the club is also different. Therefore, if the target value is determined according to the correspondence between the level set assuming the standard address posture and the target value of the value ΔGz, the angle step may deviate from the assumption as shown in Table 1. However, by performing correction based on the registered acceleration data, even when the address posture is not standard, the target value of the value ΔGz corresponding to the assumed angle for each level can be set.

[0135] In the above embodiment, the device 10 was attached to the user U's wrist. However, as shown in FIG. 14, the device 10 may be configured to be attached to the shaft of the golf club. In this way, the movement of the golf club can be directly detected, and the swing amplitude can be accurately measured. When the device 10 is configured to be attached to the shaft of the golf club, the case 110 may be configured to be removable from the jacket portion of the band 120, and the removed case 110 may be configured to be attached to the holder 20 attached to the shaft. The holder may hold the case 110 of the device 10 so as to have the same angle as when the device is attached with the band 120 to the wrist of a user in a standard address posture.

[0136] Also, among the components of the device 10, a sensor unit including the acceleration sensor 112 is attached to the shaft of the golf club, and a user interface unit including the display unit 170, the touch panel 140, the tact switch 150, etc. is configured to be worn on the wrist in the same manner as in the above embodiment, and wireless communication is performed between the sensor unit and the user interface unit to realize the same functions as the device 10. According to such a configuration, it is possible to accurately measure the swing amplitude while facilitating the natural operation of the device. As a further modification, the sensor unit including the acceleration sensor 112 may be configured to be attached to the head of the golf club. In this way, the swing amplitude of the head of the golf club that directly hits the ball during hitting can be accurately measured, and the user U can receive a notification based on the accurate swing amplitude.

[0137] In the above embodiment, the device 10 is used to adjust the take-back amount of putting with a putter, but it may be applied to the swing adjustment of clubs other than the putter. For example, it may be a club used for an approach shot. Instead of simply pursuing a long flight distance, in an approach shot where the flight distance is adjusted according to the distance to the target even with the same club, the same method as in the above embodiment can be applied to assist in adjusting or fine-tuning the flight distance by receiving a notification of the swing amplitude.

[0138] Also, in the above third embodiment, the index P is converted into the swing determination value S, and the swing determination value S is used as "data indicating the take-back amount", but the index P may be used as "data indicating the take-back amount".

[0139] In the above-described third embodiment, P = 3×Gx’ - 6×Gy’ - Gz’ was used as the index P. However, any index may be used as long as it changes according to the take-back amount with a common tendency for at least the straight type and the arc type of stroke types. It is preferable that the index used has a tendency to change linearly with respect to the take-back amount. Further, the index used preferably changes according to the take-back amount with a common tendency in a swing that slides the club head along the ground without lifting it while the swing amplitude is small during take-back and a swing that lifts the head from the initial stage of take-back. Also, the index used preferably changes according to the take-back amount with a common tendency between the swing in the address posture shown in Fig. 13(a) and the swing in the address posture shown in Fig. 13(b).

[0140] In the above-described third and fourth embodiments, a notification of the take-back amount corresponding to the level designated by the user U was performed by the same method as in the second embodiment. However, the same method as in the first embodiment may be adopted, in which the relationship between the take-back amount and the flight distance in the user U's own swing is registered in advance, the take-back amount corresponding to the flight distance designated by the user U is obtained, and a notification is made with the obtained take-back amount.

[0141] Also, control for varying the magnitude of the take-back amount to be notified according to the inclination in the progress direction of hitting the ball, which is the same as in the above-described fourth embodiment, may be applied to the first and second embodiments.

[0142] Also, an inclination correction value different from that in the above-described fourth embodiment may be used. For example, the absolute value of the inclination correction value is set to a constant value, and the constant inclination correction value is added to the target value so that the take-back amount increases on an upward slope, and conversely, the constant inclination correction value is subtracted from the target value so that the take-back amount decreases on a downward slope. In this way, the amount of calculation and storage capacity required for correction can be reduced.

[0143] In addition, control may be implemented to vary the magnitude of the take-back amount to be notified according to the inclination in the traveling direction of the hit ball by a method other than adding or subtracting a correction value to / from the target value. For example, a correction value according to the inclination may be added to or subtracted from the swing width determination value S.

[0144] The present invention is not limited to the configurations described in the above-described embodiments. The constituent elements of each of the above-described embodiments may be arbitrarily selected and combined within a combinable range. Further, any constituent element of each embodiment and any constituent element described in the means for solving the invention or a constituent element embodying any constituent element described in the means for solving the invention may be arbitrarily combined within a combinable range.

Description of Reference Numerals

[0145] 10 Device 20 Holder 110 Case 111 GPS Receiver 112 Acceleration Sensor 113 Vibrator 115 Control Unit 116 Battery 117 Storage Unit 118 Rear Cover 119 Terminal Cover 120 Band 121 Jacket Part 122a, 122b Belt 123 Small Hole 130 Fastening Fitting 131 Buckle 132 Bearing Part 133 Middle Plate 133a, 133b Through-Hole 133c Notch Part 135 Lower Plate 135a Through-Hole 135b Guide Part 135c Positioning Projection 135d Locking Projection 140 Touch Panel 141 Return Button 142 Home button 150 Tactile switch 160 miniUSB terminal 170 Display unit

Claims

1. The device is provided with a sensor unit and is configured so that the case of the device can be attached to either the user's wrist or the shaft of a golf club.

2. The device of claim 1, further comprising a band for holding the case and fastening it to a user's wrist, the case being configured to be removable from a jacket portion of the band, and the removed case being configured to be attached to a holder attached to a shaft.

3. 3. The device according to claim 1 or 2, wherein the holder is configured to hold the case 110 of the device at an angle similar to that when the device is attached to a user's wrist by the band in a standard address position.

4. 4. The device according to claim 1, wherein the sensor unit detects a movement and measures a swing width.

5. A device as described in any one of claims 1 to 4, comprising a control unit and a notification unit, the control unit having a function of controlling the notification unit to notify the user that a take-back amount corresponding to the strength of the swing has been reached.

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