JP7122774B2 - Sway detection device and sway detection program - Google Patents

Description

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

In a golf swing, it is generally preferable to keep the position of the head fixed during the swing. In other words, it is preferable that the head does not move up, down, left, right, or back and forth during a series of movements such as address, backswing, top, downswing and impact. This is because, in a golf swing, if the head does not move up, down, left, or right during the swing, the hitting 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, causing duffs, tops, and hooks, resulting in a lower hit rate. It seems that there are many cases. However, it is difficult for oneself to notice that the head is moving during the swing.

Further, among general golfers, some users, such as women, who are weak users, may intentionally sway slightly while hitting the ball, but even so, if the sway is too large, it will lead to a missed shot.

However, it is difficult for the swinger to perceive whether or not the head is moving during the swing, that is, whether or not the golfer has swayed.

Therefore, usually, (1) swing while looking in the mirror, (2) have a third party such as a lesson professional check the swing, or (3) shoot with a video camera and see the shooting results. It is confirmed whether or not the player is swaying during the swing by any of the above methods.

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

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

Japanese Utility Model Laid-Open No. 01-034073 JP 2012-165810 A JP 2012-165811 A

It is possible to determine whether or not the player is swaying by the three general methods described above, the technique described in Patent Document 1, or the like.

However, there have been various problems with these methods and techniques. For example, it is a problem as described below.

With regard to the above method (1) of swinging while looking at a mirror, there are limited places where a mirror that reflects the whole body is installed and a golf swing can be performed. In addition, as a practical matter, it is impossible to look at the mirror all the time during the swing while reproducing the usual form. Therefore, it remains unknown when the sway occurs during the swing.

As for the method (2) of having a third party such as a lesson professional check the swing, the lesson professional is not always nearby. Also, even if a lesson professional were present, it would be difficult for the lesson professional to find the sway during the swing and point out the occurrence of the sway before the end of the swing. Therefore, even if advice can be received after the end of the swing, the occurrence of sway cannot be known in real time during the swing.

Furthermore, in the above method (3) of taking a picture with a video camera and looking at the pictured result, the pictured result is to be seen after the end of the swing, and it is not possible to know the occurrence of the sway in real time during the swing.

Also, the technique described in Patent Document 1 can only determine the sway at the time of impact, and cannot detect the sway during the backswing and the downswing. Therefore, it is not known at what point in the series of movements of the swing the sway occurs. Also, even if the golfer swayed during the swing, if the head returned to the position at the time of impact, the fact that the golfer swayed during the swing would not be known.

Thus, no matter which method or technique was used, the occurrence of sway could not be detected during the swing.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a sway detection device, a sway detection system, and a sway detection program that enable a user to detect that a sway has occurred even during a swing.

According to a first aspect of the present invention, a movement of the user's head is measured while the user is making a swing, and at least during said measurement, said head movement meets a predetermined criterion. A sway detection device is provided that outputs a predetermined output at a point in time.

The sway detection device provided by the first aspect will be described. A general technique including Cited Document 1 is a configuration in which measurement is performed during a swing and the measurement result is output after the end of the swing. However, according to the present invention, output is made "at least during the measurement" "when" the movement of the head satisfies a predetermined criterion. Output is done. Therefore, it is possible to output where in the swing motion the head moved and where the head moved. For example, it has the advantageous effect of being able to know at what stage the head moved from the take-back from address to the top position, from the top to the impact, and then to the follow-through.

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, or the like of the user using a camera, radar, or the like. In particular, it is preferable to install a measuring unit such as a sensor outside the user so as to directly observe the user's head. A better configuration is to install a measurement unit that measures the movement of the user's head. This is because the movement of the user's head can be directly measured. In particular, it is preferable to provide an output section for performing a predetermined output on the head.

Moreover, according to the second aspect of the present invention, it is preferable that the predetermined output is performed in a manner detectable by the user during the swing.

The sway detection device provided by the second aspect will be described. The general technique including Cited Document 1 assumes that the measurement result is output after the end of the swing. Therefore, there was a lack of the point of view of informing the user during the swing of the output. According to the present invention, since the user can detect the output during the swing, the user can experience the problem of his/her own swing. Therefore, for example, there is an advantageous effect that even a single person can correct and check the swing at a practice field or the like. As for the configuration, it is preferable to detect by at least one of the five senses of the user who is not bound by the swing.

When the sway detection device detects the sway, it is preferable that the sway detection device outputs some kind of output to the sensory organs that the user is not restrained during the swing. For example, when the sway detection device detects a sway, the sway detection device may output some sound. This is because the user's sense of hearing is not restricted by the swing, so the user can detect the sound output. Similarly, for example, the sway detection device may be worn on 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 sense of the user's ear is not constrained by the swing, so the user can detect the vibration output. Also, for example, it is preferable to combine sound output and vibration. This is because the user can more reliably detect the output.

Furthermore, according to the third aspect of the present invention, the predetermined output is preferably performed each time the movement of the head satisfies a predetermined criterion.

The sway detection device provided by the third aspect will be described. The present invention detects a sway during a swing and outputs a predetermined output, but the sway does not necessarily occur only once during the swing, and may occur multiple times. In such a case, if the output is performed only once, the second and subsequent sway cannot be detected (recognized). However, in the present invention, as is clear from the description that it is performed "every time" when a predetermined criterion is satisfied, even if there are multiple sways, an output is performed each time each sway occurs, and the user can can be detected each time.

Furthermore, according to the fourth aspect of the present invention, the predetermined criterion is a criterion relating to any one of position, velocity, and acceleration relating to movement of the head, or a combination of two or more of these. It should be characterized by

A sway detection device provided according to the fourth aspect will be described. The present invention detects the occurrence of sway from various viewpoints by also using velocity and acceleration as references. For example, if only positional deviation is used as a reference, and velocity and acceleration are also used as references, occurrence of sway can be detected from various viewpoints. As a result, for example, it is possible to detect a rapid sway with a 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 out of position but should be corrected through practice has occurred.

Furthermore, according to the fifth aspect of the present invention, it is preferable that the predetermined criterion is determined and/or modified based on measurement results of past swings.

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, width of shake, speed, etc.). In the present invention, either or both of determination and correction of the predetermined criterion are performed based on the measurement history, which is the measurement result of past swings. At this time, by using the measurement history of the individual using the sway detection device, it is possible to determine an appropriate reference value according to the individual's habits. This makes it easier to set predetermined criteria suitable for each individual.

Furthermore, according to the sixth aspect of the present invention, any selection of past swings is received from the user, and the predetermined criterion is determined or modified based on the measurement results of the selected past swings. or both.

A sway detection device provided according to 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 criteria according to each individual user, but it is preferable that there is some objective index in order for the user to appropriately set the criteria. . Therefore, in the present invention, a specific swing performed in the past is selected, and a criterion is set based on the measurement result of the selected swing. The user selects, for example, a swing that is considered to have the longest flight distance, a swing that hits straight, or a swing that the user has checked by a third party such as an instructor and is judged to be appropriate. That is, the user selects a swing that is considered to be ideal among his or her own past swings, based on an objective indicator for the user, such as the actual result given to the ball or the subjectivity of a third party. Then, based on this selected swing, a predetermined criterion is set. For example, by using the measurement value of the selected swing as a predetermined reference, a sway will be detected when the movement during the selected swing is deviated. This makes it possible to practice so as to reproduce the selected ideal swing. Further, for example, instead of the swing considered ideal or together with the swing considered ideal, a swing considered to cause a sway may also be selected. For example, a setting for judging that a predetermined criterion is satisfied between the amount of movement of the head of a swing selected as an ideal swing and the amount of movement of the head of a swing considered to cause a sway. may be

Furthermore, according to the seventh aspect of the present invention, it is preferable to determine and/or modify the predetermined condition based on the input received from the user.

The sway detection device provided by the seventh aspect will be described. It is possible to allow the user to set arbitrary criteria. In addition, it is possible to correct the criteria once set. As a result, for example, it becomes possible to use the sway detection criteria according to the user's preference.

Furthermore, according to the eighth aspect of the present invention, a measured value relating to the magnitude and direction of the movement distance of the head, a measured value relating to the magnitude and direction of the movement velocity of the head, and a magnitude of the movement acceleration of the head Determining whether the predetermined criteria have been met is based on any one or a combination of two or more of the measurements relating to height and direction.

A sway detection device provided according to the eighth aspect will be described. In the present invention, it is preferable to use a variety of measured values to make judgments regarding predetermined conditions. For example, it may be determined that a predetermined criterion is satisfied even if the amount of sway in the vertical direction is smaller than the amount of sway in the horizontal direction.
As a result, even if there is a sway that should be detected from the viewpoint of swing practice but cannot be detected based on a certain measurement value, it can be detected by using another measurement value.

Furthermore, according to the ninth aspect of the present invention, it is preferable to vary the predetermined reference according to the direction in the three-dimensional space.

The sway detection device provided by the ninth aspect will be described. For example, if the determination is made based on the size of the movement distance, the sway in the horizontal direction may be allowed to some extent, but the sway in the vertical direction may be strictly determined. For example, there is a methodology that it is better not to sway at all, but if we do this, it is possible to deal with a methodology that permits swaying to the right to some extent. In this case, it is better to use different reference values for the right and left directions.

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

With the sway detection device provided by the tenth aspect, it is possible to change the predetermined reference during a series of swings. For example, during the backswing, which is the beginning of the swing, a relatively large sway is unlikely to occur, so the standards should be tightened. It's good to have a configuration.

Further, according to the eleventh aspect of the present invention, input of at least one of information about the type of club used by the user for a swing, information about the gender of the user, and information about the physique of the user is received from the user, and is received. It is preferable to vary the predetermined criteria based on the information obtained.

A sway detection device provided according to the eleventh aspect will be described. The size of the sway tends to differ depending on the club used for the swing, the sex of the user, the physique of the user, and the like. Therefore, it is possible to input information such as the club used for these swings, the user's sex, and the user's physique, and set a predetermined standard corresponding to the tendency.

Furthermore, according to the twelfth aspect of the present invention, it is preferable to set a plurality of the criteria and to make the content of the output different according to the criteria that are met.

A sway detection device provided according to the eleventh aspect will be described. By varying the output according to the criteria, the user who detects the output can know which criteria he/she has met to detect the sway. For example, it is possible to grasp whether it has moved to the right, whether it has moved to the left, whether it has moved at a speed higher than a predetermined speed, and the like.

Further, according to the thirteenth aspect of the present invention, recording means for recording the movement of the user's head measured during the swing in association with the measurement time and the movement at the time of measurement; and display means for displaying the movement of the head in chronological order during the swing based on the recorded contents.

A sway detection device provided according to the thirteenth aspect will be described. ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to grasp|ascertain the motion during a swing chronologically rather than displaying only at a certain time during a swing. This allows the user to grasp how the sway occurs at which stage during the swing.

Furthermore, according to the fourteenth aspect of the present invention, it is preferable that the measurement is started when a predetermined action of the user is detected.

A sway detection device provided according to 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.

Furthermore, according to the fifteenth aspect of the present invention, the impact is detected based on either or both of the moving speed of the club used by the user for swinging and the moving speed of the ball hit by the club, and the impact is detected. Preferably, the measurement is terminated based on the detection.

A sway detection device provided according to the fifteenth aspect will be described. It is possible to terminate the measurement automatically based on the detection of the impact.

Furthermore, according to the sixteenth aspect of the present invention, microwaves emitted from a Doppler sensor are reflected by one or both of the club and the ball, and the moving speed of the club and the ball are determined based on the frequency of the reflected waves. It is preferable to measure either or both of the moving speeds of the .

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

Furthermore, according to the eighteenth aspect of the present invention, it is preferable that the measurement is performed using an acceleration sensor and a gyro sensor.

Furthermore, 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 one of the first to eighteenth aspects of the present invention. provided.

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

According to the present invention, it is possible for a user to detect that a sway has occurred during a swing.

1 is a block diagram showing the basic configuration of a sway detection device according to an embodiment of the present invention; FIG. 4 is a flow chart showing the basic operation of the sway detection device according to the embodiment of the present invention; It is a block diagram showing the basic composition of the host device in the embodiment of the present invention. FIG. 4 is an image diagram showing an example of a display screen in the embodiment of the present invention; FIG. 5 is an image diagram showing another example of the display screen in the embodiment of the present invention; FIG. 4 is an image diagram showing the relationship between the leading edge and the golf ball. FIG. 4 is a block diagram showing a first alternative configuration of the sway detection device according to the embodiment of the present invention; FIG. 4 is a block diagram showing a second alternative configuration of the sway detection device according to the embodiment of the present invention; FIG. 11 is an image diagram showing an example of a 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 of this 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 A measurement history storage unit 108 is included.

The sway detection device 100 is a device that monitors the movement of the user with the sensor unit 106, detects that the user has swayed based on the monitoring results, and notifies the user of the detection of the sway. In the following description, the sway detection device 100 is realized in the form of earphones or headphones as an example of this embodiment. Then, the sway detection device 100 is attached to the ear of the user who performs the golf swing.

The sound output unit 101 outputs a sound when the 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 will be referred to as "sway detection sound" for convenience of explanation. The sound output unit 101 is implemented by a sound output mechanism that is provided in general earphones.

An operation reception unit 102 is a part that receives an operation from a user. The operation reception unit 102 receives operations such as power on/off and volume adjustment, for example.

The external connection unit 103 is an interface for connecting the sway detection device 100 to an external device. The sway detection device 100 is driven by a battery (not shown). The battery receives power supply through the external connection unit 103 and is charged. The external connection unit 103 is also used for data transmission/reception with an external device.

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

The control unit 105 is a control unit that controls the entire sway detection device 100, and the control unit 105 controls other functional blocks to implement various processes described below. Specifically, the control unit 105 includes an arithmetic processing unit, and the arithmetic processing unit performs arithmetic operations based on a program unique 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 piece of hardware based on the calculation result.

The sensor unit 106 measures the motion 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 sensor such as a gyroscope (also referred to as a gyro sensor) that measures the angle and speed of the user's head, an acceleration sensor that measures the acceleration of the user's head, or a combination of these sensors. be.

The detection criterion storage unit 107 stores a “detection criterion” which is a predetermined criterion for the control unit 105 to determine that the user has swayed. 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. The detection criteria can be arbitrarily set, but can be based on, for example, the position, velocity, and acceleration of the movement of the user's head.

The measurement history storage unit 108 stores the results of measurement by the sensor unit 106 as "measurement history".

A specific example of the object to be measured by the sensor unit 106, a specific example of the detection standard, a method of using 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 accepting unit 102 accepts an instruction to turn on the power or start measurement from the user. This activates each unit of the sway detection device 100, 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 to the control unit 105 the measurement result obtained by measuring the movement of the user's head. The control unit 105 receives the measurement results output by the sensor unit 106, stores them in the RAM provided in the control unit 105, and compares the detection criteria stored in the detection criteria storage unit 107 with the input measurement results. Thus, it is determined whether or not the measurement result satisfies the detection criteria (step S12).

Here, 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 a sway detection sound. Similarly, the control unit 105 instructs the vibration unit 104 to generate sway detection vibration.

The sound output unit 101 outputs a sway detection sound to the user according to the instruction. Further, the vibrating section 104 also outputs a sway detection signal according to the instruction (step S13). The user detects the sway detection sound and the sway detection vibration with the sense of hearing and the tactile sensation around the ear, which are the five senses that are not restricted by the swing. This enables the user to detect that the movement of his/her head has swayed.

On the other hand, if the measurement result does not satisfy the detection criteria (No in step S12), the process proceeds to step S14. Also after step S13 is completed, the process proceeds to step S14.

In step S14, it is determined whether a predetermined time has passed since the measurement was started in step S11. Here, the length of the predetermined time can be arbitrarily determined, but it is assumed to be a sufficient length from the start of one swing to the end of the swing, for example. For example, it may be the general time required to complete one swing, or the time required to practice one series of swings. Alternatively, the user may 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 passed (Yes in step S14), the process proceeds to step S15.

In step S15, the history of the measurement results stored in the RAM provided in control section 105 in step S12 is stored in measurement history storage section 108 as a measurement history. Specifically, the contents of the measurement of the current swing of the user and the date and time of measurement are stored in association with each other. This completes the operation of the present embodiment.

Next, the effects 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 through the five senses of hearing and tactile sensation around the ear that are not restricted by the swing. As a result, it is possible for the user to detect that the user's head has swayed.

In addition, since the processing of steps S12 and S13 is performed regardless of whether the swing is in progress, the user can detect the occurrence of the sway in real time even during the swing.

Furthermore, since the processing of steps S12 and S13 is performed as quickly as possible, the user can immediately detect the occurrence of the sway when the sway occurs during the swing. Therefore, it is possible to know at what stage of the swing the sway occurred. For example, it is possible to know at what stage the sway occurred during the take-back from address to the top position, from the top to the impact, and then to 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 every several tens of milliseconds at the latest.

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

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

As shown in FIG. 3 , host device 200 includes display unit 201 , external connection unit 202 , operation reception unit 203 and control unit 204 .

A display unit 201 is a portion that displays information to a user, and is realized by, for example, an LCD (Liquid Crystal Display) or an organic EL (Organic Electro-Luminescence) display. Examples of information displayed on the display unit 201 include, for example, a user interface that the user refers to when performing an operation, and a display that allows the user to 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 transmit and receive data via the external connection section 103 and the external connection section 202 .

The operation reception unit 203 is a part that receives an operation from the user.

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

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

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

As shown in FIG. 4, on the left side of the display unit 201, an image diagram showing the state of the user viewed from above is displayed. Movements of the user's head during the swing in each direction are displayed by arrows on this image diagram representing the user. Also, the length of the arrow corresponds to the magnitude of movement of the user's head. The length of the arrow in each direction may be determined, for example, by searching for the value that indicates the maximum amount of movement from the reference position in the measurement history. The reference position may be a position when the club is held, for example, a position in the history where there has been no movement for a certain period of time (a position within a predetermined minute amount).

In this example, when the top of the user's head is the center and the user's front is the upper side, it can be seen that the user's head moves the most in the direction from the center to the right. In addition, it can be seen that the user's head did not move in the diagonally forward right direction and diagonally backward right direction. Further, as shown in FIG. 4, on the right side of the display unit 201, an image diagram showing the state of the user viewed from the side is displayed. As in the diagram on the left side of FIG. 4, the user's head movement is indicated by arrows on the image diagram representing the user. In this example, when the user's head is taken as a reference, and the zenith direction is the upper side and the ceiling direction is the lower side, it can be seen that the user's head moves more upward than downward. Also, the length of the arrow corresponds to the magnitude of movement of the user's head.

By referring to such an image diagram displayed on the display unit 201, the user can visually grasp how his or her head is swaying. For example, it is also possible to thicken the arrow in the direction of relatively high speed movement during the swing, and thin the arrow in the direction of relatively low speed movement. Also, for example, it is good to change the color of the arrow according to the speed.

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

As shown in FIG. 5, similarly to FIG. 4, an image diagram showing the state of the user viewed from above and an image diagram showing the state of the user viewed from the side are displayed. However, FIG. 5 differs from FIG. 4 in that the trajectory of the movement along the time series of the swing is shown as the display representing 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 moves once to the right and then moves to the left along with the swing. Also, it can be seen that the user's head slightly moved forward with the swing. It is the same as the example shown in FIG. 4 in that the color and thickness of the arrow may be changed. 4 and 5 may be switched by a switching button or the like. Alternatively, the display of FIG. 4 and the display of FIG. 5 may be performed at the same time, for example, the display of FIG. 4 is displayed on the upper side of the screen and the display of FIG. 5 is displayed on the lower side of the screen.

Note that the measurement history stored in the measurement history storage unit 108 may be limited to the most recent swing, but it is preferable to store a plurality of swings. In this case, it is preferable that the user's operation is received by the operation receiving unit 203, and the swing to be displayed is switched according to this operation.

In addition, it is also good to simultaneously display the movement of a plurality of swings on the screen. By doing this, it is possible to compare the movement of the head during a favorable swing in the past (for example, a swing in which the ball traveled a long distance or a swing in which the ball flew straight) and the movement of the head in the current swing. becomes possible. By referring to this screen, the user can grasp how to move to make a swing similar to a certain favorable swing in the past. It should be noted that a configuration may be adopted in which a swing to be used for determination of a detection criterion, which will be described later, is specified from among the movements of the displayed plurality of swings.

By connecting the high-level device 200 having the display unit 201 to the sway detection device 100 in this way, it is possible to visually recognize the movement of the head during the swing.

Next, specific examples of measured values and detection criteria by the sensor unit 106 will be described.

The objects to be measured by the sensor unit 106 include, for example, measured values regarding the magnitude and direction of movement of the user's head, measured values regarding the magnitude and direction of movement speed of the user's head, and movement acceleration of the user's head. can be exemplified by measured values relating to the magnitude and direction of .

As a specific example of the detection criteria, setting a threshold for the moving distance of the movement of the user's head can be mentioned. Another example is setting a threshold for the movement speed of the user's head. Further, setting a threshold for the acceleration of the user's head can be mentioned.

Then, in step S12, it is determined that the criteria are met when the measurement results of the sensor unit 106 exceed these thresholds. Note that it may be determined that the criteria are met 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 sway can be generally considered to have occurred. For example, it may be determined that it continues for 200 ms or more. In addition, it may be determined that the criteria are met when any one threshold is exceeded or when any one threshold is continuously exceeded, but when a plurality of thresholds are exceeded or when a plurality of thresholds are continuously exceeded It is also good to judge that the criteria are met.

Moreover, it is also possible to determine that the criterion is met when the integrated value of the measured values for a predetermined period of time, rather than the measured value itself, exceeds the threshold.

Furthermore, it is also good to consider the direction. In this case, for example, if the measurement result 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 has been met.

For example, there is a general tendency that the sway in the direction in which the ball is thrown is small and the sway in the opposite direction is large. For example, if the ball is to be hit in the direction of the user's left foot, the user's head will sway greatly in the direction of the right foot. Therefore, it is preferable to set the threshold for the right foot direction of the user to be larger than the threshold for the left foot direction. Also, for example, if there is a tendency for the sway to be larger in the middle of the swing than at the start of the swing, the threshold at the start of the swing is set small, and the threshold is set large after a predetermined time has passed since the start of the swing. It is good to do so.

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

Here, the diameter of a general golf ball is about 42.67 mm. Therefore, when hitting a golf ball 302 with a 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 this range of 20 mm, the golf ball 302 hits the top or duffs, making it impossible to fly the golf ball 302 appropriately. Therefore, it is preferable to set the detection reference with an accuracy capable of detecting a sway that causes a vertical movement within at least this range of 20 mm. For example, it is preferable to set the detection standard with an accuracy that can detect a sway leading to vertical movement of about 5 mm.

Next, operations for determining and correcting detection criteria to be stored in the detection criteria storage unit 107 will be described.

The detection criteria may be set in advance. However, there are individual differences in the size of the sway. Also, it is considered that the sway becomes smaller as the swing improves even for the same player. Therefore, it is preferable to allow the user to determine and modify the detection criteria.

For example, the operation reception unit 203 may receive a user's operation, and the detection criteria may be modified according to this operation. As a specific example, it is conceivable to receive an operation from the user and correct the threshold value, which is the detection criterion, to a larger value when the sway is frequently detected. Further, when the user has improved so much that the sway is hardly detected, it is conceivable to receive an operation from the user and correct the threshold, which is the detection criterion, to a smaller value.

Alternatively, for example, it is also possible to automatically correct the threshold value, which is the detection criterion, based on the sway detection status, etc., instead of using reception of user's operation as a trigger. For example, if the number of swings in which a sway occurs reaches a predetermined number, the threshold is corrected to a large value, and if the number of swings in which a sway does not occur reaches a predetermined number, the threshold is corrected to a small value. It's good to be

It is also possible to receive various information related to the swing from the user and determine the detection criteria based on this information. Examples of various types of information include club type information that the user uses to swing, user's gender information, and user's physique information. To explain in more detail, for example, comparing a swing when using an iron and a 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 accepting from the user that a driver will be used to swing, the threshold value may be set to a larger value than in the case where it is accepted from the user that the iron will be used to swing.

Also, 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, so the threshold may be determined accordingly. In addition, since women are generally weaker than men, it is thought that women tend to have a larger sway than men. Therefore, it is also good to receive an input for selecting gender, and set the threshold value to be higher for females than for males. These settings may be configured such that a setting screen is displayed on the display unit 201 of the host device 200 and the setting contents are determined and corrected according to input instructions 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 settings transferred from the host device 200 in this manner.

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

If measurement is always performed without detecting the start and end of the user's swing, if the user walks around with the sway detection device 100 attached, the sway detection sound will sound while the user is not swinging. It is conceivable that Therefore, in the above-described embodiment, the measurement is started when the user's operation is accepted in step S11. Further, the measurement is terminated when the predetermined time has elapsed in step S14. However, it would be even better if this could be modified to automatically detect the start of the swing and start the measurement. Also, it would be even better if the end of the swing could be automatically detected to end the measurement.

Here, in a general golf swing, it is considered that the user's head should not move at least until the moment of impact between the club face and the ball after entering address. Therefore, it is desirable to monitor at least the movement of the user's head from entering address to the moment of impact. Therefore, in the following description, entry into address and the moment of impact are detected. Measurement by the sway detection device 100 is started when it is detected that the address has been entered. Further, after the moment of impact is detected, it is considered unnecessary to measure the swing any more, so the sway detection device 100 ends the measurement of the swing and stops monitoring the movement of the head. In addition, there is also the idea that it is better not to move the head for a while after entering the follow-through as a swing methodology. In accordance with this idea, after detecting the moment of impact, it is better to continue the measurement for a predetermined length of time, so that the movement of the head can be monitored for a while after entering the follow-through. .

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

First, the first configuration will be described with reference to FIG. As shown in FIG. 7, in this configuration, the host device 200 further includes a video acquisition unit 205, an image recognition unit 206, and a notification unit 207 in addition to the configuration shown in FIG. The image acquisition unit 205 has a function of shooting moving images. Also, 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 performs image recognition to determine from the image that the ball has entered 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 host device 200 indicates to the sway detection device 100 via the external connection unit 202 and the external connection unit 103 that the swing has started. send a signal. Upon receiving the signal indicating that the swing has started, the control unit 105 activates the sensor unit 106 to start monitoring the movement of the user's head (corresponding to step S11). In this respect, it is necessary to prevent the image recognition unit 206 of the host device 200 from executing the user's swing before address recognition, that is, before measurement is started. Therefore, for example, the notification unit 207 of the host 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. At the same time when the image recognition unit 206 of the host device 200 finishes recognizing the address, the notification unit 207 is turned on. The user starts taking back after seeing the lighting of the notification unit 207 . As a result, it is possible to prevent a situation in which a swing is performed before the start of measurement. When the image recognition unit 206 of the host device 200 finishes recognizing the address, the sound output unit 101 and the vibration unit 104 of the sway detection device 100 output sound and vibration to recognize that the address has been entered. It is also good to notify the user to that effect. Then, the user should start taking back after receiving the notification.

Further, when the image recognition unit 206 of the host device 200 can recognize the moment of impact, the control unit 204 of the host device 200 informs the sway detection device 100 via the external connection unit 202 and the external connection unit 103 that the impact has ended. send a signal to indicate 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, a second configuration will be described with reference to FIG. As shown in FIG. 8, in this configuration, host device 200 further includes human sensor 208 in addition to the configuration in FIG. A human sensor 208 is a sensor for detecting the user's location using infrared rays or ultrasonic waves.

When using this configuration, 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 host device 200 , the control unit 204 of the host device 200 controls the sway detection device 100 via the external connection unit 202 and the external connection unit 103 . A signal indicating that the user is in front of the host device 200 is sent.

When the sway detection device 100 receives a signal indicating that the user is in front of the higher-level device 200, the sway detection device 100 enters a play mode. Then, when detecting an inclination state that seems to be the user's address posture (for example, holding the same posture for 2 seconds) during this play mode, it recognizes that the player has entered address, and starts monitoring the movement of the head (step S11). .

When the human sensor 208 detects that the user is gone from in front of the host device 200 , the control unit 204 of the host device 200 connects the external connection unit 202 and the external connection unit 103 to the sway detection device 100 . A signal indicating that the user in front of the host device 200 is gone is sent via. When the sway detection device 100 receives a signal indicating that the user has disappeared from in front of the host device 200, the play mode is turned off and the measurement is terminated (corresponding to Yes in step S14).

Furthermore, as a third configuration, a configuration in which a device that measures a swing as described in Patent Document 2 or Patent Document 3 is combined with the host device 200, and a function to measure a swing is further added to the host device 200. A configuration of adding is conceivable.

Here, in the devices described in these cited documents, microwaves emitted from the Doppler sensor are reflected by either or both of the club and the ball, and measurement is performed by analyzing the frequency of the reflected waves.

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

By using such a measuring device, it can be determined that the ball has entered address 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, by starting and ending the measurement of the sway detection device 100 based on these determinations and detections, it is possible to measure a series of movements during the swing.

Also, by using the equipment described in the cited document, it is possible to derive an estimated flight distance from either the measured head speed or the ball speed. Therefore, it is preferable to display the head speed, ball speed, and estimated flight distance. By referring to this information, the user can, for example, compare head movement when the estimated flight distance is long and head movement when the estimated flight distance is short.

Furthermore, as another method, instead of modifying the configuration, it is also possible to determine the end of the swing based on changes in the measurement values of the sensor section 106 . For example, since the movement of the head is considered to stop 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 during the speed measurement.

It should be noted that, as is common to the detection of the address posture by any method, if the detection of the address posture takes too much time, it becomes difficult for the user to find the timing to take back, or the body becomes rigid. , it is conceivable that a smooth swing will not be possible. Therefore, it is preferable to detect the address posture by a method that takes as little time as possible.

The above-described embodiments are preferred embodiments of the present invention, but the scope of the present invention is not limited to the above-described embodiments, and various modifications are made without departing from the gist 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 one implementation and other shapes may be used. In particular, it is preferable to have a shape that can be worn on the user's head. For example, the shape may be headphone-shaped, spectacle-shaped, hair-tie-shaped, headband-shaped, headband-shaped, hat-shaped, or earring-shaped.

Furthermore, each functional block of the sway detection device 100 may be realized by a plurality of devices rather than by a single device. For example, it is preferable to provide the sensor unit 106 in the earphone-shaped first device and transmit the measurement result to another second device. Then, the second device is provided with the control unit 105 and the detection reference storage unit 107, the second device detects the sway, and the sound output unit provided in the first device is based on the instruction of the second device. 101 and the vibrating unit 104 are preferably caused to output sway detection sound and sway detection vibration. This also makes it possible to miniaturize the first device.

Also, in the above description, both the sway detection sound and the sway detection vibration are output, but either one of them may be output. Accordingly, it is sufficient to have only one of the sound output unit 101 and the vibration unit 104 . In addition, it is also possible to output sway detection by a method other than sound or vibration as long as it is an output that works on the five senses that are not constrained by the user during the swing.

Also, it is good to use multiple types of notification methods properly. For example, a plurality of sway detection sounds are prepared by varying the pitch or length of sound. A different output is associated with each of the plurality of detection criteria. By doing so, it is possible for the user to grasp which detection criterion has been satisfied when hearing the sway detection sound. For example, by making the sway detection sound when a left-right direction sway occurs and the sway detection sound when a vertical sway occurs, the user can detect whether the user's own head has swayed in the vertical direction. It is possible to grasp whether the player swayed 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 wired communication via a cable based on a standard such as USB (Universal Serial Bus), for example. Furthermore, it is particularly preferable to realize the external connection unit 103 and the external connection unit 302 by using modules for wireless communication and transmit and receive data by wireless communication. In this way, the degree of freedom of movement of the user's body is increased, and the swing is less likely to get in the way. In addition, the degree of freedom in installing the host device 200 can be increased.

Further, as shown in FIG. 2, in the present embodiment, an output is performed each time the detection criteria are satisfied before a predetermined period of time has elapsed or before the moment of impact is detected. In other words, it is assumed that there may be multiple outputs during one swing, but if the outputs occur frequently, it may be difficult to recognize at what stage during the swing the sway occurred. Therefore, it is also good to set the number of times of output in one swing to a predetermined number or less, such as only once or only twice. In such a configuration, after step S13, a step for confirming whether the number of times of output is equal to or less than a predetermined number of times is further provided, and if the number of times of output exceeds the predetermined number of times, the judgment in step S14 is not performed. It suffices to proceed to step S15. This improves the certainty of detection by the user of the output.

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

In the above description, the present embodiment is mainly used for detecting sway during a golf swing, but the present embodiment may be used for other uses. For example, this embodiment can be used for purposes such as practice in sports other than golf, billiards, and the like, in which a predetermined action is performed without moving the head.

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

The program can be stored and delivered to the computer using various types of non-transitory computer readable media. Non-transitory computer-readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media (e.g., flexible discs, magnetic tapes, hard disk drives), magneto-optical recording media (e.g., magneto-optical discs), CD-ROMs (Read Only Memory), CD- R, CD-R/W, semiconductor memory (e.g., mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (random access memory). Programs may also be stored in various types of temporary memory). may be supplied to the computer by a transitory computer readable medium.Examples of transitory computer readable medium include electrical signals, optical signals, and electromagnetic waves.Transitory computer readable medium may include electrical wires, And the program can be supplied to the computer via a wired communication path such as an optical fiber or a wireless communication path.

In addition, although the above-described embodiments are preferred embodiments of the present invention, the scope of the present invention is not limited to only the above-described embodiments, and various changes have been made without departing from the gist of the present invention. Any form of implementation is possible.

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 criterion 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 (6)

A device in the form of an earphone or headphone,
a sensor unit for detecting movement of the head;
a vibrating unit that vibrates the user;
equipped with
A control unit having a function of controlling output of vibration from the vibrating unit when a measurement result based on the output of the sensor unit that detects movement of the head satisfies a predetermined standard.
A device in the form of an earphone or headphone characterized by The predetermined reference is stored in a reference storage unit as a reference for movement of the user's head,
The control unit determines whether the measurement result satisfies the predetermined standard by comparing the predetermined standard stored in the standard storage unit with the measurement result based on the input output of the sensor unit. Have the ability to judge
A device in the form of an earphone or headphone according to claim 1, characterized in that: Equipped with a sound output unit that outputs sound,
The control unit performs control to output vibration from the vibration unit and control to output sound from the sound output unit when a value based on the sensor that detects the movement of the head satisfies a predetermined standard. to do
A device in the form of an earphone or headphone according to claim 1 or 2, characterized in that: The control unit has a function of storing the measurement result as a measurement history in a measurement history storage unit;
and a function of outputting the measurement history stored in the measurement history storage unit to another device.
A device in the form of an earphone or headphone according to claim 3, characterized in that: A device in the form of an earphone or headphone according to any one of claims 1 to 4,
Equipment used for practicing sports and competitions. A program for causing a computer to implement the functions of the control unit of the device according to any one of claims 1 to 5.

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