JP2020089745A - Sway detector and sway detection program - Google Patents

Abstract

To provide a sway detector that enables a user to detect the occurrence of sway even in the middle of swing.SOLUTION: A sway detector 100 comprises: a sensor unit 106 for measuring movement of a user's head during the user's swing; a detection criterion storage unit 107 for criterion storage for determining whether or not the movement of the head satisfies a predetermined criterion at least in the middle of the measurement; and a control unit 105 for determining whether or not the criterion is satisfied.SELECTED DRAWING: Figure 1

Description

The present invention relates to a sway detection device, a sway detection system, and a sway detection program for detecting a sway of a user who plays golf.

In a golf swing, it is generally preferable to keep the head position fixed during the swing. That is, it is preferable that the head does not move up and down, left and right, and front and back during a series of movements such as address, backswing, top, downswing, and impact. This is because, in a golf swing, if the head is not moved up, down, left, or right during the swing, the meet rate is increased and the accuracy of the shot is improved.

However, among general golfers whose shots are not stable, their heads move during the swing, which causes them to duff, top, or get caught, resulting in a lower meat rate. It seems that there are many cases. However, it is hard to notice that the head is moving during the swing, and it is very difficult to correct if the habit of swinging on the swing is added.

In addition, it seems that some general golfers, such as women, are weak and hit with a little sway, but even if they sway too much, they still lead to miss shots.

However, it is difficult for the person who is swinging to notice whether his/her head is moving during the swing, that is, whether or not he/she sways.

Therefore, usually, (1) swing while looking at the mirror, (2) have a third party such as a lesson pro check the swing, or (3) shoot with a video camera and see the shooting result, Check if you are not swaying during the swing.

There is also a technique that assists golf swing practice by detecting a sway. As an example of such a technique, there is a technique described in Patent Document 1, for example. The technique described in Patent Document 1 will be described (see particularly FIG. 2 of Patent Document 1).

In the technique described in Patent Document 1, the light emitting body 2 is attached to the user's head, and the position of the bright spot of the light emitting body 2 is monitored by a position measuring device arranged inside the box 4. This makes it possible to determine whether or not the bright spot position at impact (that is, the head position at impact) is deviated from the bright spot position at address (that is, the head position at address).

Japanese Utility Model Publication No. 01-034073 JP, 2012-165810, A JP 2012-165811 A

It is possible to judge whether or not the vehicle is swaying by the above-mentioned three general methods, the technique described in Patent Document 1, and the like.

However, there are various problems with these methods and techniques. That is, for example, the problem described below.

As for the method (1) of swinging while looking at the mirror, a mirror for showing the whole body is installed, and places where golf swings can be performed are limited. Also, as a practical matter, it is impossible to look at the mirror during the swing while reproducing the usual form. Therefore, it is not known when the sway is occurring during the swing.

Regarding the method (2) of having a third party such as the lesson pro check the swing, the lesson pro is not always close to him. Even if there is a lesson pro, it is difficult for the lesson pro to find a sway during the swing and to point out the occurrence of the sway before the end of the swing. Therefore, although advice can be obtained after the swing ends, it is not possible to know the occurrence of the sway in real time during the swing.

Further, regarding the method (3) of shooting with a video camera and viewing the shooting result, the shooting result is viewed after the swing ends, and the occurrence of a sway cannot be known in real time during the swing.

Further, even with the technique described in Patent Document 1, only the sway at the time of impact can be determined, and the sway during the backswing and the downswing cannot be detected. Therefore, it is not known at which point in the series of movements of the swing the sway is occurring. Further, even if the player is swaying during the swing, if the head position is returned at the time of impact, it cannot be known that the sway is occurring during the swing.

As described above, no matter which method or technique is used, it is not possible to detect the occurrence of the sway during the swing.

Therefore, an object of the present invention is to provide a sway detection device, a sway detection system, and a sway detection program that allow a user to detect the occurrence of a sway even during a swing.

According to the first aspect of the present invention, the movement of the head of the user is measured while the user is swinging, and the movement of the head satisfies a predetermined criterion at least during the measurement. There is provided a sway detection device characterized by performing a predetermined output at a time point.

The sway detection device provided by the first aspect will be described. A general technique including the cited document 1 has a configuration in which measurement is performed during a swing and the measurement result is output after the swing is completed. However, according to the present invention, since the movement of the head is output “at the time point” when the movement of the head satisfies the predetermined criterion “at least during the measurement”, even during the measurement of the swing, that is, during the swing. Output is done. Therefore, it is possible to output where in the swing motion the head has moved and where the head has moved. For example, there is an advantageous effect that it is possible to know at which stage the head has moved, from take-back from the address to the position of the top, impact from the top, and follow-through after that.

The movement of the user's head may be measured by, for example, installing a measuring unit such as a sensor outside the user and observing the user from outside the user. For example, the user may be observed from the side, back, top, front, etc. of the user with a camera or radar. In particular, a measuring unit such as a sensor may be installed outside the user so that the user's head can be directly observed. A better configuration is one in which a measurement unit that measures the movement of the user's head is installed. This is because the movement of the user's head can be directly measured. In particular, an output unit for performing a predetermined output may be provided on the head.

Further, according to the second aspect of the present invention, the predetermined output may be detected by the user during the swing.

The sway detection device provided by the second aspect will be described. The general technique including the cited document 1 assumes that the measurement result is output after the swing ends. Therefore, the viewpoint of notifying the output to the user who is swinging is lacking. According to the present invention, since the user who is swinging can detect the output, the user can experience the problem of his/her swing. Therefore, for example, in a practice field, there is an advantageous effect that only one person can correct and confirm the swing. As a configuration, it is preferable that at least one of the five senses of the user who is not restricted by the swing is detected.

When the sway detector detects a sway, the sway detector may output something to the sensory organs not constrained by the user during the swing. For example, when the sway detector detects a sway, some sound may be output from the sway detector. This is because the user's hearing is not restricted by the swing, and the user can detect the sound output. Similarly, for example, the sway detection device may be attached to the user's ear or the like, and when the sway detection device detects a sway, the sway detection device may vibrate. This is because the tactile sensation of the user's ear is not restricted by the swing, and the user can detect the output due to the vibration. Further, for example, it is preferable to combine the sound output and the vibration. This is because the user can detect the output more reliably.

Further, according to the third aspect of the present invention, the predetermined output may be performed each time the movement of the head satisfies a predetermined reference.

The sway detection device provided by the third aspect will be described. Although the present invention detects a sway during a swing and outputs a predetermined output, the sway does not always occur only once during the swing, and may occur a plurality of times. In such a case, if the output is performed only once, the sway after the second time cannot be detected (recognized). However, according to the present invention, as is clear from the statement that “every time” that meets a predetermined criterion is performed, even if there are a plurality of sways, output is performed each time each sway occurs, and the user is Can be detected each time.

Further, according to a fourth aspect of the present invention, the predetermined criterion is a criterion relating to any one of a position, a velocity and an acceleration related to the movement of the head, or a combination of two or more thereof. It is good to be characterized.

The sway detection device provided by the fourth aspect will be described. The present invention detects the occurrence of a sway from various points of view by also using speed and acceleration as references. For example, if only the positional deviation is used as a reference and the velocity and the acceleration are also used as a reference, the occurrence of a sway may be detected from various viewpoints. Thereby, for example, it is possible to detect a rapid sway with high speed or high acceleration, although the position is not so displaced. As a result, the user can detect that a sway that is not displaced but that should be corrected by practice has occurred.

Further, according to a fifth aspect of the present invention, it is preferable that either or both of the predetermined criterion is determined and/or modified based on a measurement result of a past swing.

The sway detection device provided by the fifth aspect will be described. There are individual differences in the degree of sway during a swing (for example, shake width and speed). In the present invention, the predetermined criterion is determined and/or corrected based on the measurement history which is the measurement result of the past swing. At this time, by using the measurement history of the individual who uses the sway detection device, it becomes possible to determine an appropriate reference value according to the habit of this individual. This makes it easy to set a predetermined standard suitable for each individual.

Furthermore, according to a sixth aspect of the present invention, any one of past swings is accepted from the user, and the predetermined criterion is determined or corrected based on the measurement result of the selected past swings. It is preferable that either or both of them be performed.

The sway detection device provided by the sixth aspect will be described. As described above, there are individual differences in the degree of sway. Therefore, it is necessary to determine and/or modify the predetermined standard according to each individual who is a user, but it is preferable that there is some kind of objective index for the user himself/herself to appropriately set this. .. Therefore, in the present invention, a certain specific swing performed in the past is selected, and a reference is set based on the measurement result of the selected swing. For example, the user selects a swing that seems to have the longest flight distance out of the past swings, a swing that flies straight, or a swing that the user has checked by a third party such as an instructor and is determined to be appropriate. That is, based on the result actually given to the ball and the objective index for the user such as the subjectivity of the third party, a swing considered to be ideal among the past own swings is selected. Then, based on the selected swing, a predetermined reference is set. For example, when the measured value of the selected swing is used as a predetermined reference, a deviation from the movement during the selected swing is detected as a sway. This makes it possible to practice to reproduce the selected ideal swing. Further, for example, instead of the swing considered to be ideal, or together with the swing considered to be ideal, a swing considered to generate a sway may be selected. For example, a setting that determines that a predetermined criterion is satisfied between the amount of movement of the head of the swing selected as the ideal swing and the amount of movement of the head of the swing in which sway is considered to occur. May be

Further, according to the seventh aspect of the present invention, it is preferable that either or both of the predetermined condition be determined and modified based on the input received from the user.

The sway detector provided by the seventh aspect will be described. It is possible for the user to set an arbitrary standard. Further, the standard once set can be corrected. As a result, for example, it becomes possible to use it as a reference for detecting a sway according to the user's preference.

Further, according to an eighth aspect of the present invention, a measurement value regarding the magnitude and direction of the moving distance of the head, a measurement value regarding the magnitude and direction of the moving speed of the head, and a magnitude of the moving acceleration of the head. It is preferable to determine whether or not the predetermined criterion is satisfied based on any one of the measured values of the height and the direction or a combination of two or more thereof.

The sway detecting device provided by the eighth aspect will be described. In the present invention, it is advisable to use various measured values to make a judgment regarding a predetermined condition. For example, it may be configured to determine that the predetermined criterion is satisfied even when the amount of vertical sway is smaller than the amount of horizontal sway.
Accordingly, even if there is a sway that should be detected from the viewpoint of swing practice and cannot be detected based on a certain measured value, it can be detected by using another measured value.

Further, according to the ninth aspect of the present invention, it is preferable that the predetermined reference be different depending on the direction in the three-dimensional space.

The sway detector provided by the ninth aspect will be described. For example, when the determination is made based on the size of the moving distance, the sway in the left and right directions may be allowed to some extent, but the sway in the up and down direction may be strictly determined. For example, there is a methodology in which it is better not to sway at all, but in this way, for example, a methodology that allows sway to the right is permitted to some extent. In this case, it is advisable to make the reference values different between the right direction and the left direction.

Further, according to the tenth aspect of the present invention, it is preferable that the predetermined reference be different at a certain time point during the swing and at a time point other than the certain time point.

With the sway detecting device provided according to the tenth aspect, it is possible to change the predetermined reference during a series of swings. For example, a relatively large sway is unlikely to occur during the backswing, which is the beginning of the swing, so the standard is strict, while a relatively large sway is likely to occur during the downswing, so the standard is loosened. It is good to have a configuration.

Further, according to an eleventh aspect of the present invention, an input from the user regarding at least one of club type information used by the user for a swing, user gender information, and user's physique information is accepted and accepted. It is advisable to vary the predetermined criterion based on the information obtained.

The sway detector provided by the eleventh aspect will be described. If the club used for the swing, the sex of the user, the physique of the user, and the like are different, the size of the sway tends to be different. Therefore, it is possible to input information such as the club used for the swing, the sex of the user, and the physique of the user, and set a predetermined standard corresponding to the tendency.

Further, according to the twelfth aspect of the present invention, it is preferable to set a plurality of the standards and make the contents of the output different depending on the satisfied standards.

The sway detector provided by the eleventh aspect will be described. By varying the output according to the standard, the user who has detected the output can know which standard the user has satisfied to detect the sway. For example, it is possible to know whether the vehicle has moved to the right, moved to the left, or moved at a speed higher than a predetermined speed.

Further, according to a thirteenth aspect of the present invention, with respect to the movement of the head of the user measured during the swing, a recording unit that records the measurement time and the movement at the time of measurement in association with each other, and the recording unit. Display means for displaying the movement of the head on the basis of the recorded contents so that the movement of the head can be grasped in a time series during the swing.

The sway detector provided by the thirteenth aspect will be described. According to the present invention, it is possible to grasp the movement during a swing over time, instead of displaying only at a certain point during the swing. This allows the user to know at what stage during the swing and how the sway is occurring.

Further, according to the fourteenth aspect of the present invention, it is preferable to start the measurement when a predetermined motion of the user is detected.

The sway detection device provided by the fourteenth aspect will be described. By doing so, it is possible to prevent a situation in which measurement is performed when it is not necessary.

Further, according to a fifteenth aspect of the present invention, the impact is detected based on one or both of the moving speed of the club used by the user for swinging and the moving speed of the ball launched by the club, and the impact is detected. The measurement may be ended based on the detection.

The sway detector provided by the fifteenth aspect will be described. It is possible to automatically end the measurement based on the impact detection.

Further, according to a sixteenth aspect of the present invention, the microwave emitted from the Doppler sensor is reflected by either or both of the club and the ball, and the moving speed of the club and the ball are reflected based on the frequency of the reflected wave. It is advisable to measure either or both of the moving speeds.

Furthermore, according to the seventeenth aspect of the present invention, the measurement may be a measurement using an acceleration sensor.

Further, according to an eighteenth aspect of the present invention, the measurement may be performed using an acceleration sensor and a gyro sensor.

Further, according to a nineteenth aspect of the present invention, there is provided a sway detection program characterized by causing a computer to function as the sway detection device provided by any of the first to eighteenth aspects of the present invention. Provided.

The sway detection program provided by the nineteenth aspect will be described. The above program can also realize the sway detection device provided by any of the first to eighteenth aspects of the present invention.

According to the present invention, the user can detect the occurrence of the sway during the swing.

It is a block diagram showing the basic composition of the sway detection device in an embodiment of the present invention. It is a flow chart showing the basic operation of the sway detection device in the embodiment of the present invention. It is a block diagram showing the basic composition of the upper unit in an embodiment of the present invention. It is an image figure showing an example of the display screen in the embodiment of the present invention. It is an image figure showing another example of the display screen in the embodiment of the present invention. It is an image figure showing the relationship between a leading edge and a golf ball. It is a block diagram showing the 1st other composition of a sway detection device in an embodiment of the present invention. It is a block diagram showing the 2nd other composition of the sway detection device in an embodiment of the present invention. It is an image figure showing an example of the display screen in another embodiment of the present invention.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, the sway detection device 100 according to the present embodiment includes a sound output unit 101, an operation reception unit 102, an external connection unit 103, a vibration unit 104, a control unit 105, a sensor unit 106, a detection reference storage unit 107, and The measurement history storage unit 108 is included.

The sway detection device 100 is a device that monitors the movement of the user by the sensor unit 106, detects that the user has swayed based on the monitoring result, and notifies the user that the sway has been detected. In the following description, as an example of the present embodiment, the sway detection device 100 is realized in the shape of earphones or headphones. Then, the sway detection device 100 is attached to the ear of the user who makes a golf swing and used.

The sound output unit 101 outputs a sound when a sway occurs under the control of the control unit 105. The user can recognize that the sway has occurred by listening to the sound output from the sound output unit 101. Hereinafter, the sound output from the sound output unit 101 is referred to as “sway detection sound” for convenience of description. The sound output unit 101 is realized by a sound output mechanism included in a general earphone.

The operation receiving unit 102 is a unit that receives an operation from a user. The operation receiving unit 102 receives, for example, operations such as turning on/off the power and adjusting the volume.

The external connection unit 103 is an interface for the sway detection device 100 to connect to an external device. The sway detection device 100 is driven by a battery (not shown). Then, this battery is supplied with power via the external connection portion 103 and is charged. The external connection unit 103 is also used for transmitting/receiving data to/from an external device.

The vibrating unit 104 vibrates under the control of the control unit 105 when a sway occurs. The user can recognize that the sway has occurred by feeling the vibration of the vibrating unit 104. Hereinafter, the vibration generated by the vibrating unit 104 will be referred to as “sway detection vibration” for convenience of description. The vibrating unit 104 is realized by, for example, a small motor.

The control unit 105 is a control unit that controls the sway detection device 100 as a whole, and the control unit 105 controls other functional blocks to realize various processes described below. Specifically, the control unit 105 includes an arithmetic processing device, and the arithmetic processing device performs an arithmetic operation based on a program peculiar to the present embodiment stored in a storage unit included in the control unit 105 or another storage unit. The sway detection device 100 is realized by performing processing and controlling each hardware based on the calculation result.

The sensor unit 106 measures the movement of the user's head during the swing, and outputs the measurement result to the control unit 105. The sensor unit 106 is realized by a gyroscope (also referred to as a gyro sensor) that measures the angle of the user's head or each speed, a sensor such as an acceleration sensor that measures the acceleration of the user's head, or a combination of these sensors. It

The detection reference storage unit 107 is a predetermined reference for the control unit 105 to determine that a user's sway has occurred, and stores a “detection reference”. Then, when the measurement result of the sensor unit 106 satisfies this detection criterion, the control unit 105 determines that the user's sway has occurred. Although the detection reference can be set arbitrarily, for example, it can be a reference based on the position, speed, and acceleration of the movement of the user's head.

The measurement history storage unit 108 stores the measurement result of the sensor unit 106 as “measurement history”.

Note that specific examples of the measurement target and the detection reference by the sensor unit 106, the usage of the measurement history, and the like will be described later.

Next, the operation of this embodiment will be described in detail with reference to the flowchart of FIG.

First, the operation receiving unit 102 receives an instruction from the user to turn on the power or start measurement. As a result, each unit of the sway detection device 100 is activated, and the sensor unit 106 starts measuring the movement of the user's head (step S11).

When the measurement is started, the sensor unit 106 outputs the measurement result obtained by measuring the movement of the head of the user to the control unit 105. Then, the control unit 105 inputs the measurement result output from the sensor unit 106, stores the measurement result in the RAM provided in the control unit 105, and compares the detection result stored in the detection reference storage unit 107 with the input measurement result. As a result, it is determined whether or not the measurement result satisfies the detection standard (step S12).

If the measurement result satisfies the detection criteria (Yes in step S12), the process proceeds to step S13.

In step S13, the control unit 105 instructs the sound output unit 101 to output the sway detection sound. Similarly, the control unit 105 instructs the vibration unit 104 to generate the sway detection vibration.

The sound output unit 101 outputs a sway detection sound to the user according to the instruction. The vibrating unit 104 also outputs a sway detection signal in response to the instruction (step S13). The user detects these sway detection sounds and sway detection vibrations by the senses of the five senses not constrained by the swing and the sense of touch around the ears. This allows the user to detect that the movement of his/her head has swayed.

On the other hand, when the measurement result does not satisfy the detection standard (No in step S12), the process proceeds to step S14. Also, after step S13 ends, the process proceeds to step S14.

In step S14, it is determined whether a predetermined time has elapsed from the start of the measurement in step S11. Here, the length of the predetermined time can be arbitrarily determined, but for example, it is set to a sufficient length from the start of one swing to the end of this swing. For example, it may be set as a general time required for one swing or as a time required for practicing one series of swings. Further, the user may be allowed to select or specify the predetermined time. Then, if the predetermined time has not elapsed (No in step S14), the determination in step S12 is performed again while continuing the measurement.

On the other hand, if the predetermined time has elapsed (Yes in step S14), the process proceeds to step S15.

In step S15, the history of the measurement results stored in the RAM included in the control unit 105 in step S12 is stored in the measurement history storage unit 108 as the measurement history. Specifically, the measurement content and measurement date and time of the user's swing are stored in association with each other. As a result, the operation of this embodiment ends.

Next, the effect of this embodiment will be described.

In the present embodiment described above, the output to the user is performed based on the detection of the sway, and the user detects the output by the senses of the five senses not restricted by the swing and the tactile sensation around the ear. As a result, the user can detect that the movement of the user's own head has swayed.

In addition, since the processes of steps S12 and S13 are performed regardless of whether or not the user is swinging, there is an effect that the user can detect the occurrence of a sway in real time even when the user is swinging.

Furthermore, since the processes of steps S12 and S13 are performed as quickly as possible, the user can immediately detect the occurrence of the sway when the sway during the swing occurs. Therefore, it becomes possible to know at which stage of the swing of the player the sway has occurred. For example, there is an effect that it is possible to know at which stage the sway has occurred, from taking back from the address and going to the position of the top, from the top to the impact and then the follow-through. For example, the input of the measurement result from the sensor unit 106 in step S12 and the comparison with the detection reference may be configured to be repeatedly executed at intervals of several tens of milliseconds at the latest.

Next, as a modified example of the above-described embodiment, a case will be described in which the host device 200, which is a host device connectable to the sway detection device 100 described above, and the sway detection device 100 are connected and used.

First, the functional blocks included in the higher-level device 200 will be described with reference to FIG.

As shown in FIG. 3, the higher-level device 200 includes a display unit 201, an external connection unit 202, an operation reception unit 203, and a control unit 204.

The display unit 201 is a unit for displaying information to the user, and is realized by, for example, an LCD (Liquid Crystal Display) or an organic EL (Organic Electro-Luminescence) display. Examples of the information displayed on the display unit 201 include a user interface that the user refers to when performing an operation, and information that the user can grasp the measurement history.

The external connection unit 202 is an interface for connecting the sway detection device 100 and the host device 200. The sway detection device 100 and the host device 200 send and receive data via the external connection unit 103 and the external connection unit 202.

The operation receiving unit 203 is a unit that receives an operation from a user.

The control unit 204 is a control unit that controls the entire higher-level device 200, and the control unit 204 controls the other functional blocks to realize various processes described below. Specifically, the control unit 204 includes an arithmetic processing device, and the arithmetic processing device performs arithmetic processing based on a program peculiar to this embodiment stored in the control unit 204 or in another storage unit, The host device 200 is realized by controlling each hardware based on the calculation result.

Next, an example of contents displayed on the display unit 201 will be described with reference to FIG.

In the measurement history storage unit 108 of the sway detection device 100, the position, speed, acceleration, etc. of the head at each time point during the swing regarding the past swing are stored as a measurement history in chronological order. The upper device 200 acquires this measurement history from the sway detection device 100 via the external connection unit 103 and the external connection unit 202. Then, the movement of the user's head during the swing is displayed based on the measurement history.

As shown in FIG. 4, an image diagram showing a state in which the user is viewed from above is displayed on the left side of the display unit 201. Then, the movement of the user's head during the swing in each direction is displayed by arrows on this image diagram showing the user. The length of the arrow corresponds to the size of the movement of the user's head. The length of the arrow in each direction may be determined, for example, by searching the measurement history for a value indicating the maximum movement amount from the reference position. The reference position may be a position when the club is held, and may be, for example, a position in the history that has not moved for a certain period of time (a position within a predetermined small amount).

In this example, it can be seen that the head of the user moves most greatly in the direction from the center to the right when the top of the user's head is the center and the front of the user is the upper side. Also, it can be seen that the user's head did not move in the diagonally right front and diagonally right rear directions. Further, as shown in FIG. 4, an image diagram showing a state in which the user is viewed from the side is displayed on the right side of the display unit 201. Then, as in the diagram on the left side of FIG. 4, the movement of the user's head is represented by an arrow on the image diagram showing the user. In this example, it can be seen that when the zenith direction is the upper side and the zenith direction is the lower side with the user's head as the reference, the user's head moves to the upper side more than the lower side. The length of the arrow corresponds to the size of the movement of the user's head.

The user can visually understand how his/her head is swaying by referring to such an image diagram displayed on the display unit 201. It should be noted that, for example, the arrow may be made thicker in the direction of moving at a relatively high speed during the swing and thinned in the direction of moving at a relatively low speed. Further, for example, the color of the arrow may be changed according to the speed.

Next, another example of the display information on the display unit 201 will be described with reference to FIG.

As shown in FIG. 5, as in the case of FIG. 4, an image diagram showing a state where the user is seen from above and an image diagram showing a state where the user is seen from the side are displayed. However, FIG. 5 differs from FIG. 4 in that a locus of movement along a time series of the swing is shown as a display showing the movement of the user's head. In FIG. 5, the movement from the position of the head at the start of the swing to the position of the head at the end of the swing is represented by a single arrow. Taking the movement seen from above as an example, it can be seen that the head once moved to the right side and then to the left side with the swing. It can also be seen that the user's head has moved slightly forward along with the swing. Similar to the example shown in FIG. 4, the color and thickness of the arrow may be changed. Further, the displays of FIGS. 4 and 5 may be switched by a switching switch button or the like. Alternatively, the display of FIG. 4 and the display of FIG. 5 may be performed simultaneously, such as the display of FIG. 4 on the upper side of the screen and the display of FIG. 5 on the lower side of the screen.

It should be noted that the measurement history stored in the measurement history storage unit 108 may be stored only for the most recent single swing, but may be stored for a plurality of swings. In this case, it is preferable that the operation receiving unit 203 receives a user's operation and the swing to be displayed is switched according to the operation.

It is also possible to simultaneously display on the screen the movements of a plurality of swings. By doing so, for example, the movement of the head during a certain preferable swing in the past (for example, a swing with a long flight distance or a swing in which the ball flies straight) is compared with the movement of the head of this swing. It becomes possible. By referring to this screen, the user can understand how to make a swing like a certain preferable swing in the past. It should be noted that a configuration may be used in which a swing used for determining a detection reference to be described later is specified from among the displayed movements of the plurality of swings.

By connecting the host device 200 including the display unit 201 to the sway detection device 100 as described above, it is possible to visually recognize the movement of the head during the swing.

Next, a specific example of the measured value by the sensor unit 106 and a specific example of the detection reference will be described.

The measurement target by the sensor unit 106 is, for example, a measurement value regarding the magnitude and direction of the moving distance of the user's head, a measurement value regarding the magnitude and direction of the moving speed of the user's head, and a movement acceleration of the user's head. The measurement value and the like regarding the size and the direction of can be exemplified.

Further, as a specific example of the detection reference, a threshold value may be set for the moving distance of the movement of the user's head. Another example is setting a threshold for the moving speed of the user's head. Furthermore, a threshold value may be set for the acceleration of the user's head.

Then, in step S12, when the measurement result of the sensor unit 106 exceeds these thresholds, it is determined that the standard is satisfied. Note that it may be determined that the criterion is satisfied when the measurement result of the sensor unit 106 continues to exceed these threshold values for a predetermined length of time. The predetermined time may be, for example, a time at which it can be generally considered that a sway has occurred. For example, it may be set as a case where it lasts for 200 ms or more. In addition, it may be determined that the criterion is satisfied when any one of the thresholds is exceeded or when any one of the thresholds is continuously exceeded, but when a plurality of thresholds are exceeded or a plurality of thresholds are continuously exceeded. It is also good to judge that the criteria are met.

It is also possible to judge that the criterion is satisfied when the integrated value of the measured values during a predetermined time, rather than the measured value itself, exceeds the threshold value.

Further, it is also possible to consider the direction. In this case, for example, when the measurement result itself of the sensor unit 106 in a certain direction or the integrated value of the measurement results exceeds a threshold value, it may be determined that the criterion is satisfied.

As an example, generally, the sway in the direction of ball flight is small and the sway in the opposite direction tends to be large. For example, if the ball is to be thrown toward the user's left foot, the user's head will sway largely toward the right foot. Therefore, the threshold value in the right foot direction of the user may be set to be larger than the threshold value in the left foot direction. Further, for example, if the sway tends to be larger during the swing than at the start of the swing, the threshold at the time of disclosure of the swing is set to be small, and the threshold is set to be large after a predetermined time has elapsed from the start of the swing. It is good to do so.

Next, a guideline for setting the detection reference for detecting the sway will be specifically described with reference to FIG. FIG. 6 is a diagram showing a state at the time of impact of a golf swing, and illustrates a golf club 301 and a golf ball 302.

Here, the diameter of a general golf ball is about 42.67 mm. Therefore, when hitting the golf ball 302 with the golf club 301 such as an iron, it is necessary to put the leading edge of the golf club 301 such as an iron within about 20 mm from the ground with the hole placed on the ground. When the golf club 301 moves up and down within the range of 20 mm, the golf ball 302 cannot top or duff and cannot properly fly the golf ball 302. Therefore, it is advisable to set the detection reference with an accuracy that can detect a sway that leads to vertical movement within at least this 20 mm range. For example, it is advisable to set the detection reference with an accuracy that can detect a sway that causes vertical movement of about 5 mm.

Next, an operation for determining and correcting the detection reference stored in the detection reference storage unit 107 will be described.

The detection reference may be set in advance. However, there are individual differences in the size of the sway. In addition, it is considered that the sway becomes smaller as the swing improves even for the same person. Therefore, it is preferable that the user can determine and correct the detection standard.

For example, the operation accepting unit 203 may accept a user's operation, and the detection reference may be modified according to this operation. As a specific example, when a sway is frequently detected, an operation from a user may be accepted, and a threshold serving as a detection reference may be corrected to a large value. Further, it is conceivable to accept an operation from the user and correct the threshold value, which is the detection reference, to a small value when the user progresses and the sway is hardly detected.

In addition, for example, instead of being triggered by the user's operation acceptance, the threshold value which is the detection reference may be automatically corrected based on the sway detection status and the like. For example, the threshold is corrected to a large value when the number of swings in which the sway occurs is a predetermined number, and the threshold is corrected to a small value when the number of swings in which the sway does not occur reaches the predetermined number. It is good to

It is also possible to receive various information related to the swing from the user and determine the detection reference based on this information. Examples of various information include club type information used by a user for a swing, user gender information, and user physique information. More specifically, for example, comparing the swing when using an iron and the swing when using a driver, it is considered that the swing when using a driver tends to have a larger sway. Therefore, for example, when the user accepts the swing to be performed, the threshold value may be set to a larger value than when the user accepts the swing to be performed from the user.

Further, for example, it is considered that a person with a large physique tends to have a larger sway than a person with a small physique, and thus the threshold value may be determined accordingly. Moreover, since females are generally weaker than males, it is considered that females tend to have larger sway than males. Therefore, it is also possible to accept an input for selecting the gender so that the threshold value is larger in women than in men. For these settings, a setting screen may be displayed on the display unit 201 of the higher-level device 200, and the setting contents may be determined and corrected according to the input instruction from the operation reception unit 203. In this case, the setting content may be transferred to the sway detection device 100 via the external connection unit 202 and the external connection unit 103. The sway detection device 100 may be configured to perform processing according to the setting contents transferred from the higher-level device 200 in this way.

Next, the detection of the start and end of the user's swing will be described.

If the user constantly measures without detecting the start and end of the swing of the user, if the user walks around while wearing the sway detection device 100, a sway detection sound is emitted when the user is not swinging. It is possible that it will end up. Therefore, in the above-described embodiment, the measurement is started when the user operation is accepted in step S11. Further, the measurement is ended when the predetermined time has elapsed in step S14. However, it would be better if this could be modified to automatically detect the start of the swing and start the measurement. Further, it is more preferable that the end of the swing can be automatically detected and the measurement can be ended.

Here, in a general golf swing, it is considered that the user's head does not have to move at least until the moment of impact of the club face and the ball after entering the address. Therefore, it is desirable to monitor at least the movement of the user's head between the time of entering the address and the moment of impact. Therefore, in the following description, entering an address and the moment of impact are detected. Then, when it is detected that the address has been entered, the measurement by the sway detection device 100 is started. Further, since it is considered that further measurement of the swing is not required after the moment of impact is detected, the sway detection device 100 ends the measurement of the swing and stops the head movement monitoring. There is also the idea that it is better not to move your head for a while after entering the follow-through as a swing methodology. If this idea is followed, it is advisable to monitor the movement of the head for a while after entering the follow-through by continuing the measurement for a predetermined length of time after detecting the moment of impact. ..

Next, three examples of specific configurations for detecting the entry of an address and the moment of impact will be described.

First, the first configuration will be described with reference to FIG. 7. As shown in FIG. 7, in this configuration, the higher-level device 200 further includes a video acquisition unit 205, an image recognition unit 206, and a notification unit 207 in addition to the configuration of FIG. The image acquisition unit 205 has a function of shooting a moving image. Further, the image recognition unit 206 has a function of performing image recognition. The notification unit 207 includes a function of notifying the user.

Then, the image acquisition unit 205 captures an image of the user performing the swing, and the image recognition unit 206 recognizes the image to determine from the image to the address and the moment of impact.

When the image recognition unit 206 recognizes that the address has been entered, the control unit 204 of the higher-level device 200 indicates that the swing has started to the sway detection device 100 via the external connection unit 202 and the external connection unit 103. Send a signal. Upon receiving the signal indicating that the swing has been started, the control unit 105 activates the sensor unit 106 and starts monitoring the user's head movement (corresponding to step S11). In this respect, it is necessary to prevent the image recognition unit 206 of the higher-level device 200 from executing the user's swing before address recognition, that is, before starting measurement. Therefore, for example, the notification unit 207 of the higher-level device 200 may notify the user that the address has been recognized. For example, the notification unit 207 is realized by an LED (Light Emitting Diode) or the like. Then, at the same time when the recognition of the address is completed by the image recognition unit 206 of the host device 200, the notification unit 207 is turned on. The user starts takeback after seeing the lighting of the notification unit 207. As a result, it is possible to prevent a situation in which the swing is performed before the measurement is started. When the image recognition unit 206 of the higher-level device 200 finishes recognizing the address, the sound output unit 101 and the vibration unit 104 of the sway detection device 100 output sound or vibration to recognize that the address has been entered. It is also possible to notify the user of the fact. Then, the user may start the takeback after receiving the notification.

When the image recognition unit 206 of the higher-level device 200 can recognize the moment of impact, the control unit 204 of the higher-level device 200 ends the impact on the sway detection device 100 via the external connection unit 202 and the external connection unit 103. Send a signal to that effect. Upon receiving the signal indicating that the impact has ended, the control unit 105 ends the measurement by the sensor unit 106 (corresponding to Yes in step S14). This makes it possible to measure a series of movements during the swing.

Next, the second configuration will be described with reference to FIG. As shown in FIG. 8, in this configuration, the host device 200 further includes a human sensor 208 in addition to the configuration of FIG. The human sensor 208 is a sensor for detecting the whereabouts of the user using infrared rays or ultrasonic waves.

When this configuration is used, the host device 200 is installed in front of the place where the user swings. Then, when the human sensor 208 detects that the user is in front of the higher-level device 200, the control unit 204 of the higher-level device 200 causes the sway detection device 100 via the external connection unit 202 and the external connection unit 103. A signal indicating that there is a user in front of the host device 200 is sent.

When the sway detecting device 100 receives a signal indicating that the user is present in front of the host device 200, the sway detecting device 100 enters the play mode. Then, when a tilted state (for example, holding the same posture for 2 seconds) which is considered to be the address posture of the user is detected during this play mode, it is recognized that the user has entered the address, and monitoring of head movement is started (step S11). ..

When the human sensor 208 detects that there is no user from the front of the higher-level device 200, the control unit 204 of the higher-level device 200 causes the external connection unit 202 and the external connection unit 103 to connect to the sway detection device 100. A signal indicating that there is no user in front of the higher-level device 200 is sent via the. When the sway detection device 100 receives the signal indicating that there is no user before the host device 200, it turns off the play mode and ends the measurement (corresponding to Yes in step S14).

Furthermore, as a third configuration, a configuration in which a device for performing swing measurement as described in Patent Documents 2 and 3 is combined with a higher-level device 200, and a function for performing a swing-related measurement in the higher-level device 200 is further provided. A configuration of adding is conceivable.

Here, in the devices described in these references, the microwave emitted from the Doppler sensor is reflected by either or both of the club and the ball, and the frequency of the reflected wave is analyzed to perform the measurement.

Specifically, the ball speed of the ball hit by the club head and the head speed of the club head are measured.

If such a measuring device is used, it can be judged that the address has been entered at the moment when the measured head speed becomes almost zero. Furthermore, the moment of impact can be detected from the change in either or both of the measured head speed and ball speed. Therefore, a series of movements during the swing can be measured by starting and ending the measurement of the sway detection device 100 based on these judgments and detections.

Further, if the device described in the cited document is used, the estimated flight distance can be derived from either the measured head speed or the ball speed. Therefore, it is preferable to display the head speed, the ball speed, and the estimated flight distance. By referring to these pieces of information, the user can compare, for example, the movement of the head when the estimated flight distance is long with the movement of the head when the estimated flight distance is short.

Further, as another method, the end of the swing may be determined based on the change in the measurement value by the sensor unit 106, instead of modifying the configuration. For example, since it is considered that the movement of the head stops once at the end of the follow-through, it may be determined that the swing has ended when the speed becomes significantly slower than before until during the speed measurement.

It should be noted that, whichever method is used for detecting the address posture, if too much time is taken for detecting the address posture, it may be difficult for the user to take back, or the body may become rigid. , It may be impossible to make a smooth swing. Therefore, it is preferable to detect the address attitude by a method that takes as little time as possible.

The embodiment described above is a preferred embodiment of the present invention, but the scope of the present invention is not limited to the above embodiment, and various modifications are made without departing from the scope of the present invention. Can be implemented in.

For example, in the above description, the sway detection device 100 is realized by an earphone-shaped device. However, this is only an implementation example, and other shapes may be adopted. In particular, it is preferable to have a shape that can be worn on the user's head. For example, a headphone shape, a spectacles type, a hair retention type, a headband type, a headband type, a hat type, an earring type and the like may be used.

Furthermore, each functional block of the sway detection device 100 may be realized by a plurality of devices instead of being realized by a single device. For example, the sensor unit 106 may be provided in the earphone-shaped first device and the measurement result may be transmitted to the other second device. Then, the control unit 105 and the detection reference storage unit 107 are provided in the second device, the second device detects the sway, and the sound output unit provided in the first device based on the instruction of the second device. The sway detection sound or the sway detection vibration may be output to the 101 or the vibration unit 104. As a result, the first device can be downsized.

Further, in the above description, both the sway detection sound and the sway detection vibration are output, but either one may be output. Therefore, it is sufficient to provide only the sound output unit 101 or the vibration unit 104. In addition, if the output is to act on the five senses that are not constrained during the swing, the sway detection may be output by a method other than sound or vibration.

Also, it is advisable to properly use a plurality of types of notification methods. For example, a plurality of sway detection sounds are prepared by changing the pitch and the length of the sound. Then, different outputs are associated with each of the plurality of detection criteria. By doing so, it becomes possible for the user to grasp which detection criterion is satisfied when the sway detection sound is heard. For example, by differentiating the sway detection sound when a horizontal sway occurs and the sway detection sound when a vertical sway occurs, the user makes the user's head sway vertically. It is possible to know whether the vehicle is swaying in the left or right direction.

Data transmission/reception via the external connection unit 103 and the external connection unit 302 may be performed by wire communication via a cable based on a standard such as USB (Universal Serial Bus). Furthermore, it is particularly preferable that the external connection unit 103 and the external connection unit 302 are realized by a module for wireless communication and data is transmitted and received by wireless communication. By doing so, the degree of freedom of movement of the user's body is increased, and it is less likely to disturb the swing. In addition, the degree of freedom in installing the host device 200 can be increased.

In addition, as shown in FIG. 2, in the present embodiment, before a predetermined time has elapsed or before the moment of impact is detected, output is performed every time the detection reference is satisfied. That is, it is assumed that there may be a plurality of outputs during one swing, but if the outputs occur frequently, it may be difficult to recognize at which stage during the swing the sway occurred. Therefore, the number of outputs in one swing may be set to a predetermined number of times, such as once or twice. In the case of such a configuration, after step S13, there is further provided a step of confirming whether or not the output count is less than or equal to a predetermined number, and if it exceeds the predetermined number, the determination in step S14 is not performed. It suffices to proceed to step S15. This improves the certainty of detection of the output by the user.

Further, although the measurement history is used in the above-described embodiment, an apparatus for performing sway detection without using the measurement history may be used. With such a configuration, the measurement history storage unit 108 can be omitted. Further, the process of step S15 is also unnecessary. Further, the measurement history storage unit 108 may be provided in the host device 300.

In the above description, the present embodiment is used mainly for detecting the sway at the time of golf swing, but the present embodiment may be used for other purposes. For example, the present embodiment can be used for practice such as sports other than golf, competitions such as billiards, and the like in which a situation where a predetermined motion is performed without moving the head occurs.

The above sway detection device can be realized by hardware, software, or a combination thereof. The communication method performed by the above sway detection device can also be realized by hardware, software, or a combination thereof. Here, “realized by software” means realized by the computer reading and executing the program. For example, some processing may be executed by an external device such as a server connected via a communication line.

The program can be stored using various types of non-transitory computer readable media and can be supplied to the computer. Non-transitory computer readable media include various types of tangible storage media. Examples of the non-transitory computer readable medium include a magnetic recording medium (for example, flexible disk, magnetic tape, hard disk drive), magneto-optical recording medium (for example, magneto-optical disk), CD-ROM (Read Only Memory), CD- R, CD-R/W, semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (random access memory). Also, the program includes various types of temporary memory. May be supplied to the computer by a transitory computer readable medium, examples of the transitory computer readable medium include electrical signals, optical signals, and electromagnetic waves. The program can be supplied to the computer via a wired communication path such as an optical fiber or a wireless communication path.

Further, the above-described embodiment is a preferred embodiment of the present invention, but the scope of the present invention is not limited to the above-described embodiment, and various modifications are made without departing from the scope of the present invention. It can be implemented in the form.

100 sway detection device 101 sound output unit 102, 203 operation reception unit 103, 202 external connection unit 104 vibration unit 105, 204 control unit 106 sensor unit 107 detection reference storage unit 108 measurement history storage unit 200 host device 201 display unit 205 image acquisition Unit 206 Image recognition unit 207 Notification unit 208 Human sensor

Claims (3)

A function of measuring the movement of the head of the user while the user is swinging, and performing a predetermined output at the time when the movement of the head satisfies a predetermined reference at least during the measurement,
A sway detection system, which accepts a selection of one of the past swings from the user, and determines and/or corrects the predetermined reference based on a measurement result of the selected past swing. . A function of displaying the movement of the user's head during the swing based on a measurement history that is a measurement history of the movement of the user's head while the user is swinging;
A function for displaying a plurality of swing movements on the screen at the same time and designating a swing to be used for either or both of the determination and correction of the predetermined reference from among the displayed plurality of swing movements is provided. The sway detection system according to claim 1, wherein the sway detection system is a sway detection system. A sway detection program that causes a computer to function as the sway detection system according to claim 1.

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