US20140213382A1

US20140213382A1 - System and Operating Method for Real-Time Analysis of Golf Swing Motion on Golf Club

Info

Publication number: US20140213382A1
Application number: US13/988,454
Authority: US
Inventors: Nam Wook Kang; Young Jin Jin
Original assignee: DU-SUNG TECHNOLOGY Co Ltd
Current assignee: DU-SUNG TECHNOLOGY Co Ltd
Priority date: 2012-12-11
Filing date: 2012-12-11
Publication date: 2014-07-31
Also published as: KR20140090087A; CN103987429A; JP2015502831A; WO2014092213A1; KR101532206B1

Abstract

Provided are a system for real-time analysis of a golf swing motion on a golf club and an operating method thereof. More particularly, the operating method of the system for real-time analysis of a golf swing motion on a golf club includes: automatically identifying information of a golf club to be used by a user using a club identification circuit attached to the golf club (S100); sensing swing information by sensing a motion of the golf club (S200); analyzing the swing motion of the user using the information of the golf club identified in the identifying of the information of the golf club (S100) and the swing information sensed in the sensing of the swing (S200) (S300); and feeding back analysis results of the swing motion analyzed in the analyzing of the swing motion (S300) to a user terminal in real time (S400).

Description

TECHNICAL FIELD

The present invention relates to a system and an operating method for real-time analysis of a golf swing motion on a golf club, and more particularly, to a system for real-time analysis of a golf swing motion on a golf club including a club identification unit that automatically identifies a golf club used by a golfer and a swing sensing unit that senses data regarding a rotation direction, an angle, and a speed of a golf club head generated from swing motions to analyze an angle of a head face, a swing trajectory, a swing rhythm and tempo, and a head speed and feedback the swing motions of the golfer in real time, thereby rightly correcting wrong swing motions, and an operating method for real-time analysis of a golf swing motion on a golf club.

BACKGROUND ART

In general, golf, which has been recognized as a luxury sport enjoyed only by a limited number of people, has recently been recognized as a sport that help physical health and mental health and thus, is drawing attention as a public sport. As a result, the number of people enjoying golf has continuously increased.
Golf is a sport that plays 18 holes in three or four rounds of golf as a competitive sport, by which a competitive golfer attempts to score under par, of all the aggregated rounds of golf. Further, a direction and a driving distance of a ball are decided by the momentary hit of the golfer, and the outcome of the game may depend on concentration, accuracy of a hit, and physical strength supporting the game. Here, accuracy mainly depends on a golf swing motion and therefore, desired accuracy and driving distance can only be obtained when the golfer accurately hits a ball with a correct motion. Therefore, golfers obtain information by attentively observing motions of pro golfers while watching a golf game or watching golf training broadcasting, and the like, in order to practice a correct golf swing motion.
As such, theoretical learning has a limitation and therefore, a beginner who begins to play golf needs to be directly taught by an expert to learn an accurate swing and even the skilled golfer needs to continuously practice in order to be able to accurately hit a hitting point of a ball based on an already learned swing.
As important factors for analyzing the golf swing, there are an angle of a head according to a golf club swing, a head speed, a swing trajectory, a swing rhythm, tempo, and the like. Therefore, a target of the golf swing training is to reproduce the same swing every time while practicing the golf swing by repeatedly correcting the factors so as to correctly swing the golf club.
During the golf swing training, as standard motions of the golf swing, there are address, back swing, down swing, impact, and finish. There is a need to perform accurate corrections for each standard motion.
Direct guidance by an expert, and the like, involves much expense and in order to be taught by an expert, a beginner needs to make an appointment with an expert or needs to practice a lot, which causes great inconvenience. Therefore, recently, many golfers use a video analysis system so as to learn a correct golf swing motion. The video analysis system has been usefully used to correct the swing motions of the golfer and problems of the golfer by playing the recorded video information of the golfer but can be used only in a separate limited place where video can be recorded and played. Further, in order to recognize problems of the golfer after being swung or hit, separate time to confirm video is required and in order to find out problems of the golfer, much time to analyze swing or hit is required, such that the video analysis system is inappropriate for repetitious training.
In order to overcome disadvantages of the video analysis system, according to the related art, inertial sensor elements are attached to a golf club, wrists and gloves of the golfer to obtain accurate data and accurately analyze a swing based on the obtained data.
However, when the inertial sensor element is attached to the wrists or gloves of the golfer, the swing data of the golf club cannot be accurately received and even when the inertial sensor element is attached to the golf club, it is difficult to differentiate a speed and a direction of a golf club head according to the attached position of the inertial sensor element and when the inertial sensor element is attached to the golf club head, the swing motions can be hindered due to the weight of the inertial sensor element.
Therefore, when the inertial sensor element is attached to a grip or a shaft of the golf club, it is inconvenient to separately input the corresponding conditions of the golf club followed by analysis due to variation in a length of the golf club.
Korean Patent No. 10-1195497 (“The Golf Swing Motion Analysis System”, hereinafter, referred to Patent Document 1) discloses a golf swing motion analysis system capable of accurately measuring a position of a body at the time of swing by a sensor attached to a part of the golfer's body and analyzing a swing motion by receiving data measured by a sensor.
Patent Document 1 has a problem in that the accurate swing data of the golf club cannot be received and has not yet mention solutions for the problem.

RELATED ART DOCUMENT

Patent Document

Korean Patent No. 10-1195497 (Publication Date: Oct. 23, 2012)

DISCLOSURE

Technical Problem

An object of the present invention is to provide a system for real-time analysis of a golf swing motion on a golf club and an operating method thereof capable of automatically identifying a golf club used by a golfer, transmitting data of a rotation direction, an angle, and a speed of a golf club head generated from swing motions in real time, and analyzing an angle of a head face, a swing trajectory, a swing rhythm and tempo, and a head speed and feeding back the swing motions of the golfer in real time to rightly correct wrong swing motions.

Technical Solution

In one general aspect, there is provided a system for real-time analysis of a golf swing motion on a golf club, including: a club identification unit 100 that identifies information of the plurality of golf clubs and is mounted on a golf club; a swing sensing unit 200 that senses swing information according to a swing motion of a user and is mounted in the golf club; and a user terminal 300 that analyzes the swing information of the user received by the swing sensing unit 200 in real time and feedbacks the analyzed swing information to a user.
The club identification unit 100 may include: a club number display unit 110 that represents a number of the golf club directly identified by the user; and a club identification circuit unit 120 that automatically identifies the information of the golf club chosen by the user.
The swing sensing unit 200 may include: a club information receiving unit 210 that receives the information of the golf club automatically identified by the club identification circuit unit 120; a sensor unit 220 that senses swing information of the golf club; a control unit 230 that analyzes the swing information sensed by the sensor unit 220; a transmitting unit 240 that transmits the information of the golf club received by the club information receiving unit 210 and the swing information analyzed by the control unit 230 to the user terminal 300; and a power supply unit 250 that supplies power to the swing sensing unit 200.
The club identification unit 100 and the swing sensing unit 200 may be mounted on an upper portion of a grip of the golf club.
The sensor unit 220 may include: a first sensor 221 that senses a rotation speed of the golf club; and a second sensor 222 that senses a rotation direction of the golf club.
The user terminal 300 may include: a receiving unit 310 that receives the swing information from the transmitting unit 240 of the swing sensing unit 200 and the information of the golf club; a memory unit 320 that stores the received swing information and information of the golf club; a swing analysis unit 330 that analyzes the swing motion of the user using the swing information and the information of the golf club that are stored in the memory unit 320; a voice guide unit 340 that guides the swing motion analyzed by the swing analysis unit 330 to the user by voice in real time; and a display unit 350 that monitors the swing motion analyzed by the swing analysis unit 330.
The voice guide unit 340 may include: a user setting unit 341 that receives a desired tolerance range of the swing motion from the user; an error analysis unit 342 that compares the swing motions analyzed by the swing analysis unit 330 using the tolerance range received by the user setting unit 341 to analyze an error degree; and a voice providing unit 343 that transmits results analyzed by the error analysis unit 342 to the user by voice.
In another general aspect, there is provided an operating method of a system for real-time analysis of a golf swing motion on a golf club, including: automatically identifying information of a golf club to be used by a user using a club identification circuit attached to the golf club (S100); sensing swing information by sensing a motion of the golf club (S200); analyzing the swing motion of the user using the information of the golf club identified in the identifying of the information of the golf club (S100) and the swing information sensed in the sensing of the swing (S200) (S300); and feeding back analysis results of the swing motion analyzed in the analyzing of the swing motion (S300) to a user terminal in real time (S400).
The feeding back (S400) may include: guiding voice to provide the analysis results of the swing motion analyzed in the analyzing of the swing motion (S300) by voice in real time through the user terminal (S410); and displaying the analysis results of the swing motion analyzed in the analyzing of the swing motion (S300) in real time through the user terminal (S420).

Advantageous Effects

According to the exemplary embodiment of the present invention, the system for real-time analysis of a golf swing motion on a golf club and the operating method thereof include a club identification unit automatically identifying a golf club used by the golfer and a swing sensing unit sensing data of a rotation direction, an angle, and a speed of a golf club head generated from swing motions to a golf club to automatically recognize a kind of golf clubs used by the golfer, thereby analyzing an angle of a head face, a head speed, a swing trajectory, and a swing rhythm and tempo in real time based on the recognized golf club.
In addition, according to the exemplary embodiments of the present invention, the system for real-time analysis of a golf swing motion on a golf club and the operating method thereof feedback the data received from the club identification unit that may be attached to a grip of a golf club and the swing sensing unit by voice and images in real time through terminals or portable devices carried by the golfer, such that the golfer can very usefully use the data in an actual rounding or an indoor and outdoor driving range.
Further, according to the exemplary embodiments of the present invention, the system for real-time analysis of a golf swing motion on a golf club and the operating method thereof can store the swing analysis data in the separate storage unit and then, effectively provide the analysis information including the graph for the data, thereby greatly contributing to the lesson effect and score improvement.

DESCRIPTION OF DRAWINGS

The above and other objects, features and advantages of the present invention will become apparent from the following description of preferred embodiments given in conjunction with the accompanying drawings, in which:

FIG. 1 is a diagram illustrating a general golf club

FIG. 2 is a diagram schematically illustrating a system for real-time analysis of a golf swing motion on a golf club according to an exemplary embodiment of the present invention

FIG. 3 is an exemplified diagram illustrating a part of a golf club having the system for real-time analysis of a golf swing motion on a golf club according to an exemplary embodiment of the present invention and a user terminal

FIG. 4 is an exemplified diagram illustrating a club identification unit 100 according to the exemplary embodiment of the present invention

FIG. 5 is a diagram illustrating in detail a user terminal 300 according to the exemplary embodiment of the present invention

FIG. 6 is a graph illustrating a change in acceleration of a golf club for swing information sensed by a first sensor 221 of a swing sensing unit 200 according to the exemplary embodiment of the present invention

FIG. 7 is a diagram illustrating a trajectory of a golf club head after and before hitting according to the exemplary embodiment of the present invention

FIG. 8 is a diagram illustrating in detail a voice guide unit 340 according to the exemplary embodiment of the present invention

FIG. 9 is an exemplified diagram of a graphic user interface (GUI) of a display unit 350 according to the exemplary embodiment of the present invention

FIG. 10 is a flow chart illustrating an operating method of the system for real-time analysis of a golf swing motion on a golf club according to the exemplary embodiment of the present invention and

FIG. 11 is a flow chart illustrating in detail the operating method of the system for real-time analysis of a golf swing motion on a golf club according to the exemplary embodiment of the present invention.


[Detailed Description of Main Elements]

100:	club identification unit
110:	club number display unit
120:	club identification circuit unit
200:	swing sensing unit
210:	club information receiving unit
220:	sensor unit
221:	first sensor	222:	second sensor
230:	control unit
240:	transmitting unit
250:	power supply unit
300:	user terminal
310:	receiving unit	320:	memory unit
330:	swing analysis unit	340:	voice guide unit
341:	user setting unit	342:	error analysis unit
343:	voice providing unit
350:	display unit
351:	swing information display unit
352:	club state display unit
353:	graph display unit

BEST MODEL

Hereinafter, a system for real-time analysis of a golf swing motion on a golf club and an operating method thereof according to the exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings. The following introduced drawings are provided by way of example so as to fully convey an idea of the present invention to a person skilled in the art to which the present invention pertains. Accordingly, the exemplary embodiments of the present invention are not limited to the following proposed drawings but may be embodied in various forms. In addition, throughout the specification, like reference numerals denotes like components.
Here, unless indicated otherwise, the terms used in the specification including technical and scientific terms have the same meaning as those that are usually understood by those who skilled in the art to which the present invention pertains, and detailed description of the known functions and constitutions that may obscure the gist of the present invention will be omitted.
Generally, as illustrated in FIG. 1, a golf club largely includes a grip that is held by golfer's hands, a shaft that corresponds to an arm portion when a person throws a ball, and a head directly hitting a ball and in more detail, may be subdivided into a toe, a face, a hosel, a sole, and the like. The toe represents outside corner portions of a head when a golfer performs an address while holding a golf club, the face represents a surface that head directly contacts a ball, the hosel represents a portion that connects the shaft of the golf club with the golf club head, and a lie angle represents an angle formed by a ground and the shaft while the face is horizontally disposed on the ground.
A loft angle represents an angle formed by the shaft and the face, that is, an angle at which the head face of the golf club lies. Here, when the loft is large, it may be analyzed that the head face largely lies back. When a head hits a ball in this state, a ball does not move forward but floats up into the air, such that a driving distance of a ball may be short.
The golf club is divided into a wood, an iron, a wedge, and a putter according to a shape and a material of the head and has different usages and functions. That is, the usages are different according to the golfer desired driving distance and each feature of the golf club.
Describing in detail, the wood is a golf club that moves a ball as farther as possible, the wood is designed to have a long shaft and a light head and to be easily swung and each golf club is denoted by the corresponding unique number. Meanwhile, as approaching No. 1, a length of the shaft is long and an angle of the loft is small, such that the driving distance is increased.
The iron has a shorter driving distance than that of the wood but has excellent directivity and accuracy, and therefore, is a golf club chosen according to an appropriate distance. Like the wood, for example, the irons, each golf club is denoted by the unique number and like the wood, as approaching a smaller number, the length of the shaft becomes longer and the angle of the loft becomes smaller, such that the driving distance is increased.
Further, the wedge is a golf club for accurately moving a ball to a shorter distance than that of the iron and may be differentiated into four kinds. The putter may be the most important golf club that determines a score and is a golf club that puts a ball on a green in a hole cup. For this reason, the putter is a golf club that focuses on only accuracy than the driving distance.
The number of golf clubs that may be carried by the golfer in a regular round is 14 or less and therefore, may be a strategy for winning game by correctly selecting the right golf club.
Hereinafter, the system for real-time analysis of a golf swing motion on a golf club of various golf clubs having the complicated configuration and an operating method thereof will be described.
As illustrated in FIG. 2, the system for real-time analysis of a golf swing motion on a golf club according to the exemplary embodiment of the present invention may include a club identification unit 100, a swing sensing unit 200, and a user terminal 300 and as illustrated in FIG. 3, the club identification unit 100 and the swing sensing unit 200 may be attached to an upper portion of a grip of the golf club. In this configuration, the club identification unit 100 may be fixed in an insertion or bonding form so as not to move on the upper portion of the grip of the golf club. Describing in detail, the club identification unit 100 indicates numbers of a plurality of golf clubs, such that a user (hereinafter, referred to as ‘golfer’) may identify information on the golf club. As illustrated in FIG. 4, the club identification unit 100 may include a club number display unit 110 and a club identification circuit unit 120.
The club number display unit 110 indicates numbers of the golf club so that the golfer may differentiate the golf club based on numbers of the golf club.
The club identification circuit unit 120 is provided with each ID circuit for each kind of golf clubs, such that the swing sensing unit 200 may recognize the identification information of the golf club. The club identification unit 100 including the club identification circuit unit 120 may be previously attached to each golf club and when the golfer chooses a specific golf club, may automatically transfer the identification information of the golf club to the swing sensing unit 200.
In this case, the identification information of the golf club chosen by the golfer, that is, the length of the shaft, the lie angle, and the loft angle are transmitted to the user terminal 300 through the swing sensing unit 200 and the golfer may confirm the identification information of the golf club chosen by the golfer in real time through the user terminal 300. The identification information is only the exemplary embodiment of the present invention and may be further added or reduced according to the setting of the golfer.
As illustrated in FIG. 3, the swing sensing unit 200 may be coupled with the club identification unit 100. In this case, a fastening method for coupling between the club identification unit 100 and the swing sensing unit 200 may couple the club identification unit 100 with the swing sensing unit 200 by using various fastening methods such as a screw form indicating a helical structure, a bonding form, a form using magnet, a fitted in structure, and the like.
The swing sensing unit 200 senses the swing information according to the swing motion of the golfer and as illustrated in FIG. 2, may include a club information receiving unit 210, a sensor unit 220, a control unit 230, a transmitting unit 240, and a power supply unit 250.
The club information receiving unit 210 may receive the identification information of the golf club automatically recognized by the club identification circuit unit 120.
The sensor unit 220 senses the swing information of the golf club and may include a first sensor 221 and a second sensor 222.
The first sensor 221 may be an accelerometer sensor 221 that senses a rotation speed of the golf club and the second sensor 222 may be a gyroscope sensor 222 that senses the rotation direction of the golf club, which is only the exemplary embodiment of the present invention.
The control unit 230 may analyze the swing information sensed by the sensor unit 220, that is, the swing information sensed by the accelerometer sensor 221 and the gyroscope sensor 222.
Describing in detail, a swing rhythm and tempo, a head speed, and the like, may be analyzed by using the rotation speed of the golf club sensed by the accelerometer sensor 221 and the angle and the swing trajectory of the head face may be analyzed by sensing the rotation direction of the golf club by the gyroscope sensor 222.
FIG. 6 is a graph illustrating a change in acceleration that is generated at the time of the swing motion of the golf club sensed by the accelerometer sensor 221. The graph illustrating the change in acceleration is a graph illustrating in detail a swing motion over time based on an address and a hitting timing. In this case, the graph illustrating a change in acceleration according to values sensed by the accelerometer sensor 221 is a three-axis graph of X, Y, and Z.
As illustrated in FIG. 6, it can be confirmed that the swing motion of the golfer may be divided in four steps. Here, interval {circle around (1)} represents a back swing time, interval {circle around (2)} represents a back swing top time, interval {circle around (3)} represents a down swing time, and interval {circle around (4)} represents a follow through time.
That is, the time from address to the top of a back swing, the time to be stopped from the top of a back swing to a downswing, the time from a start of a down swing to impact, and the time from impact to finish may be differentiated based on the graph illustrating the change in acceleration according to the values sensed by the acceleration sensor 221.
In addition, the gyroscope sensor 222 may sense a face angle of the golf club head at the time of hitting and may be used to extract factors determining the swing trajectory.
Describing in detail, at the time of the impact of the golf club head, the angle of the golf club head face may be determined by using a rotation rate of the shaft sensed by the gyroscope sensor 222 and the swing trajectory may be determined by synchronizing the rotation rate of the shaft with the acceleration sensed by the accelerometer sensor 221. The following Equation 1 is an Equation that determines the angle of the head face at the time of impact and may obtain the angle of the head face by integrating the rotation rate of the shaft over the time required from the start time of the back swing to the completion time of the down swing.
Angle of head face surface=∫_{start time of back swing} ^{completion time down swing}roation rate of shaft(t)dt [Equation 1]
In other words, the control unit 230 may use the rotation speed and direction of the golf club sensed by the accelerometer sensor 221 and the gyroscope sensor 222 to predict the start and end of the swing and determine whether the left and right deflections occur according to the angle of the head face at the impact moment.
The transmitting unit 240 may transmit the identification information of the golf club received by the club information receiving unit 210, that is, the unique number of the golf club and the swing information of the golfer analyzed by the control unit 230 to the user terminal 300. In this case, the transmission may be performed in a wireless manner and may be performed by various wireless communications such as radio frequency (RF), Wireless-Fidelity (WI-FI), near field communication (NFC), Zigbee, Bluetooth, and the like.
The power supply unit 250 supplies power to the swing sensing unit 200. Herein, since the swing sensing unit 200 is attached to the upper portion of the grip of the golf club, and the like, the power supply unit 250 has constraints in terms of a size and therefore, a small primary battery or a rechargeable secondary battery may be used.
The user terminal 300 may analyze the swing information of the golfer received by the swing sensing unit 200 and the swing motion of the golfer according to the information of the golf club and feedback the analyzed results to the golfer in real time. As the user terminal 300, all kinds of terminals that may be easily carried and may process the received data can be used, for example, PDAs, smart phones, tablet PCs, notebooks, and the like, may be variously used.
As illustrated in FIG. 5, the user terminal 300 may include a receiving unit 310, a memory unit 320, a swing analysis unit 330, a voice guide unit 340, and a display unit 350.
The receiving unit 310 may receive the swing information of the golf club and the information of the golf club from the transmitting unit 240 of the swing sensing unit 200. In this case, as described above, communication between the transmission unit 240 of the swing sensing unit 200 and the receiving unit 310 of the user terminal 300 may be performed in a wireless communication manner and various wireless communications such as radio frequency (RF), Wireless-Fidelity (WI-FI), near field communication (NFC), Zigbee, Bluetooth, and the like, may be used.
The memory unit 320 stores the swing information according to the swing motion of the golfer received by the receiving unit 310 and the information of the golf club and the information of each golf club, that is, the length of the shaft, the lie angle, the loft angle, and the like, may be set, changed, and stored by the user.
The swing analysis unit 330 analyzes the swing motion of the golfer using the swing information stored in the memory unit 320 and the information of the golf club.
Describing in detail, the swing analysis unit 330 may calculate the angle of the head face, the head speed, the swing trajectory, the swing rhythm and tempo, and the like, of the golf club according to the swing motion of the golfer by using the length of the shaft, the lie angle, and the loft angle of the golf club that is the information of the golf club chosen by the golfer and the swing information, that is, the rotation speed and direction of the golf club sensed by the accelerometer sensor and the gyroscope sensor.
The swing trajectory is a surface created by the shaft of the golf club while the golf club rotates using a body as a rotating shaft based on the ground. To be exact, the swing trajectory represents a trajectory along which the head of the golf club moves.
The head speed may be determined according to a head radius of the golf club and a function of acceleration sensed by the accelerometer sensor 221. In other words, the head speed of the golf club is a product of the swing radius of the golf club head by the acceleration.
The swing rhythm and tempo may be calculated as a ratio of the down swing time to the back swing and the back swing top from the address starting approximately at which the acceleration is 0 and the same rhythm and tempo may not be applied to all the people, but it is important to maintain uniform swing rhythm and tempo so as to meet individual peculiarities.
FIG. 7 is a diagram illustrating a trajectory of a golf club head after and before hitting, wherein the left and right flight directions of a ball may be affected by the direction of the trajectory after hitting. As illustrated in FIG. 7, the head enter of the golf club may be represented by out-in, in-square-in, in-out and may be represented by open, square, close, and the like, according to the angle of the head face of the golf club at the time of hitting. Further, various ball flight pitches may be determined by the trajectory of the golf club head and the angle of the head face.
In this case, as kinds of the flight pitches, there are straight, slice, hook, pull, pull slice, pull hook, push, push slice, push hook, and the like.
The system for real-time analysis of a golf swing motion on a golf club according to the exemplary embodiment of the present invention may be configured so that the user terminal 300 includes the voice guide unit 340 and the display unit 350 to feedback in real time the swing information of a specific shot that is analyzed in real time by the swing analysis unit 330, that is, the angle of the head face, the swing trajectory, the swing rhythm and tempo, and the head speed of the golf club as well as a swing plane, a sweet spot, a carry, and the like, to the golfer through the voice guide unit 340 and the display unit 350.
The voice guide unit 340 may guide in real time the swing motion of the golfer analyzed by the swing analysis unit 330, that is, the angle of the head face, the swing trajectory, the swing rhythm and tempo, and the head speed of the golf club of the golfer to a user through voice.
Describing in detail, as illustrated in FIG. 8, the voice guide unit 340 may be configured to further include a user setting unit 341, an error analysis unit 342, and a voice providing unit 343.
The user setting unit 341 may receive an error range of the desired swing motion from the golfer. In other words, the angle of the head face, the swing trajectory, the swing rhythm and tempo, and the head speed of the golf club are different from each individual and a swing motion of a beginner and a swing motion of a pro are also clearly different, such that it is necessary to set a tolerance range of individuals for the angle of the head face, the swing trajectory, the swing rhythm and tempo, and the head speed of the golf club that are analysis factors.
The error analysis unit 342 may use the tolerance range of the swing motion received by the user setting unit 341 from the golfer to compare the swing motions analyzed by the swing analysis unit 330, thereby analyzing the error degree. That is, the user setting unit 341 may compare the analysis results of the actual swing motion of the golfer analyzed by the swing analysis unit 330 with the golfer desired swing motion, thereby analyzing the error degree.
Describing in detail, the error degree analysis of the swing trajectory may be divided into the angle analysis of the head face of the golf club and the swing trajectory of the golf club, that is, the path analysis of the enter and advance angles of the golf club.
The angle analysis of the head face of the golf club receives the golfer desired tolerance angle of the head face of the golf club through the user setting unit 341 and a range of an open angle and a close angle may be set based on the tolerance angle. Further, the path analysis of the enter and advance angles of the golf club receives left and right and top and bottom distances based on the golfer desired impact position through the user setting unit 341 and forms a kind of rectangular tolerance zone based on the input distances, thereby analyzing the trajectory passing through the tolerance zone.
The tolerance degree analysis of the head speed may set the tolerance of the golfer desired speed by the user setting unit 341 at the time of the impact of the golf club and may set a normal speed range based on the set tolerance at the time of impact.
The tolerance analysis of the swing rhythm and tempo receives the tolerance in a ratio (%) unit of the down swing time to the back swing time and the back swing top time through the user setting unit 341 to analyze the error degree based on the input tolerance at the time of the actual swing motion of the golfer.
The voice providing unit 343 may transfer in real time the error degree for the swing motion of the golfer analyzed by the error analysis unit 342 to the golfer by voice by using a text to speech (TTS) engine.
The TTS engine simply represents a text to speech automatic transformation technology and represents a technology of immediately transforming and transmitting a text into speech.
By doing so, when the swing motion of the golfer analyzed by the error analysis unit 342 is in the appropriate range of the tolerance degree, the voice providing unit 343 may guide the swing trajectory within the appropriate range by voice, but when the swing motion of the golfer is out of an appropriate range, may simply guide the swing trajectory out of the appropriate range or may represent in detail the swing trajectory up to a unit and may guide the swing trajectory.
By doing so, the golfer may be provided with accurate feedback so as to correct his/her swing motion in real time at the time of actual rounding. Further, the swing motion may be corrected in real time by referring to the feedback and may correct the swing motion for himself/herself without the help from an expert by repetitious training within an indoor and outdoor driving range.
The display unit 350 may display the swing information on one shot of the golfer analyzed by the swing analysis unit 330 in real time and search and display the swing information of a specific shot stored. As illustrated in FIG. 9, the display unit 350 is divided into a swing information display unit 351, a club state display unit 352, and a graph display unit 353 so as to be displayed on the display unit 350 of the user terminal 300 in a graphic user interface (GUI) form. The analysis information of swing information of a specific shot of the golfer, that is, the angle of the head face, the head speed, the swing trajectory, and the swing rhythm and tempo of the golf club may be confirmed by the swing information display unit 351, the club state display unit 352, and the graph display unit 353. The swing information display unit 351 may display in a quantitative value the analysis information of the swing information of the specific shot of the golfer analyzed and calculated by the swing analysis unit 330, that is, the angle of the head face, the head speed, the swing trajectory, and the swing rhythm and tempo, and the like, of the golf club, the club state display unit 352 may diagram and represent the angle of the head face of the golf club in a club form at the time of the impact of the specific shot of the golfer analyzed and calculated by the swing analysis unit 330, and the graph display unit 353 may diagram the head speed, the swing trajectory, the swing rhythm and tempo, and the like, of the specific shot of the golfer analyzed and calculated by the swing analysis unit 330 with respect to a swing time base.
As described above, displaying the swing motion of the golfer through the swing information display unit 351, the club state display unit 352, and the graph display unit 353 is only the exemplary embodiment of the present invention and the analysis results of the swing motion of the golfer by being more variously subdivided or simply arranged according to the control setting of the golfer may also be provided.
In other words, the system for real-time analysis of a golf swing motion on a golf club according to the exemplary embodiment of the present invention may use the identification information of the golf club automatically identified by the club identification unit 100 and the rotation speed and direction of the golf club sensed by the swing sensing unit 200 to analyze and calculate the angle of the head face, the head speed, the swing trajectory, the swing rhythm and tempo, and the like, of the golf club according to the swing motion of the golfer. In addition, the analyzed and calculated results are transmitted to the user terminal 300 in real time and the analysis results of the swing motion are provided with feedback so as to be efficiently used during practice, training, and an actual rounding of golf.
As illustrated in FIG. 10, the operating method of the system for real-time analysis of a golf swing motion on a golf club according to the exemplary embodiment of the present invention may include identifying the information of the golf club (S100), sensing the swing motion of the golfer (S200), analyzing the swing motion of the golfer (S300), and feeding back the analyzed swing motion (S400).
In the identifying of the information of the golf club (S100), the golf club identification circuit that is mounted on the upper portion of the grip of the golf club to automatically identify the information of the golf club to be used by the golfer. In other words, it is possible to identify the information of the golf club input to the club identification circuit unit 120 of the club identification unit 100 in advance and the unique number of the golf club.
In the sensing of the swing motion (S200), the motion of the golf club and the swing information of the golf club may be sensed by using the accelerometer sensor 221 and the gyroscope sensor 222 of the swing sensing unit 200.
Describing in detail, in the sensing of the swing motion (S200), it is possible to predict the start and end of the swing motion based on the impact by using the rotation speed of the golf club sensed by the accelerometer sensor 221 and determine whether the left and right deflections occur, by sensing the enter angle of the impact moment head and the angle of the head face by using the direction of the golf club sensed by the gyroscope sensor 222.
The analyzing of the swing motion (S300) may be performed by the swing analysis unit 330 of the user terminal 300 and may analyze the swing motion of the golfer by using the information of the golf club identified by the identifying of the information of the golf club (S100) and the swing information sensed in the sensing of the swing motion (S200).
Describing in detail, the angle of the head face, the head speed, the swing trajectory, the swing rhythm and tempo, and the like, of according to the swing motion of the golfer may be analyzed and calculated by using the length of the shaft, the lie angle, and the loft angle of the golf club that is the information of the golf club and the swing information, that is, the rotation speed and direction of the golf club sensed by the accelerometer sensor 221 and the gyroscope sensor 222.
The swing trajectory is a surface created by the shaft of the golf club while the golf club rotates using a body as a rotating shaft based on the ground. To be exact, the swing trajectory represents a trajectory along which the head of the golf club moves.
The head speed may be determined according to a head radius of the golf club and a function of acceleration sensed by the accelerometer sensor 221. In other words, the head speed of the golf club is a product of the swing radius of the golf club head by the acceleration.
The swing rhythm and tempo may be calculated as a ratio of the down swing time to the back swing and the top of the back swing from the address starting approximately at which the acceleration is 0 and the same rhythm and tempo may not be applied to all the people, but it is important to maintain the uniform swing rhythm and tempo so as to meet individual peculiarities.
In the feeding back (S400), the analysis results of the swing motion analyzed in the analyzing of the swing motion (S300) may be transmitted to the voice guide unit 340 and the display unit 350 of the user terminal 300 in real time and may be provided with feedback to the golfer in real time. In this case, as illustrated in FIG. 11, in the feeding back (S400) may include guiding voice (S410) and displaying (S420).
In the guiding of the voice (S410), the analysis results of the swing motion analyzed by the analyzing of the swing motion (S300) may be provided with feedback to the golfer by voice in real time through the voice guide unit 340 of the user terminal 300 and in the displaying (S420), the analysis results of the swing motion analyzed in the analyzing of the swing motion (S300) may be displayed in real time through the display unit 350 of the user terminal 300.
Further, the analysis results of the swing motion of the specific time and the specific shot may be displayed according to the demand of the golfer. As described above, the present invention is described with reference to specific matters such as the detailed components and the limited exemplary embodiments, but is provided to help a general understanding of the present invention. Therefore, the present invention is not limited to the above exemplary embodiments and can be variously changed and modified from the description by a person skilled in the art to which the present invention pertain.
The spirit of the present invention is defined by the appended claims rather than by the description preceding them, and all changes and modifications that fall within metes and bounds of the claims, or equivalents of such metes and bounds are therefore intended to be embraced by the range of the spirit of the present invention.

Claims

1. A system for real-time analysis of a golf swing motion on a golf club, comprising:

a club identification unit that identifies information of the golf club and is mounted on a golf club;

a swing sensing unit that senses swing information according to a swing motion of a user and is mounted in the golf club; and

a user terminal that analyzes the swing information of the user received by the swing sensing unit in real time and feedbacks the analyzed swing information to a user.

2. The system of claim 1, wherein the club identification unit includes:

a club number display unit that represents a number of the golf club directly identified by the user; and

a club identification circuit unit that automatically identifies the information of the golf club chosen by the user.

3. The system of claim 2, wherein the swing sensing unit includes:

a club information receiving unit that receives the information of the golf club identified by the club identification circuit unit;

a sensor unit that senses swing information of the golf club;

a control unit that analyzes the swing information sensed by the sensor unit;

a transmitting unit that transmits the information of the golf club received by the club information receiving unit and the swing information analyzed by the control unit to the user terminal; and

a power supply unit that supplies power to the swing sensing unit.

4. The system of claim 1, wherein the club identification unit and the swing sensing unit are mounted on an upper portion of a grip of the golf club.

5. The system of claim 3, wherein the sensor unit includes:

a first sensor that senses a rotation speed of the golf club; and

a second sensor that senses a rotation direction of the golf club.

6. The system of claim 3, wherein the user terminal includes:

a receiving unit that receives the swing information from the transmitting unit of the swing sensing unit and the information of the golf club;

a memory unit that stores the received swing information and information of the golf club;

a swing analysis unit that analyzes the swing motion of the user using the swing information and the information of the golf club that are stored in the memory unit;

a voice guide unit that guides the swing motion analyzed by the swing analysis unit to the user by voice in real time; and

a display unit that monitors the swing motion analyzed by the swing analysis unit.

7. The system of claim 6, wherein the voice guide unit includes:

a user setting unit that receives a desired tolerance range of the swing motion from the user;

an error analysis unit that compares the swing motions analyzed by the swing analysis unit using the tolerance range received by the user setting unit- to analyze an error degree; and

a voice providing unit that transmits results analyzed by the error analysis unit to the user by voice.

8. An operating method of a system for real-time analysis of a golf swing motion on a golf club, comprising:

automatically identifying information of a golf club to be used by a user using a club identification circuit attached to the golf club;

sensing swing information by sensing a motion of the golf club;

analyzing the swing motion of the user using the information of the golf club identified in the identifying of the information of the golf club and the swing information sensed in the sensing of the swing; and

feeding back analysis results of the swing motion analyzed in the analyzing of the swing motion to a user terminal in real time.

9. The system of claim 8, wherein the feeding back includes:

guiding voice to provide the analysis results of the swing motion analyzed in the analyzing of the swing motion by voice in real time through the user terminal; and

displaying the analysis results of the swing motion analyzed in the analyzing of the swing motion in real time through the user terminal.