JP2013031529A - System and method for analyzing measurement of golf swing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for analyzing measurement of a golf swing which is capable of simulating a golf swing that a golfer normally performs.SOLUTION: The measurement analysis system 1 includes: a sensor unit 14 detachably mounted to a golf club 11; and an analyzer 2 including a data acquisition part 8 for acquiring time-series data of three-axis acceleration and three-axis angular velocity of the golf club 11 during a golf swing from the sensor unit 14, a swing arc data extraction part 9 for extracting swing arc data of the golf club 11 during a golf swing from the time-series data acquired by the data acquisition part 8, and a simulating part 10 for simulating a golfer's golf swing by using a predetermined golf club model based on the swing arc data, time-series data, and characteristics of a golf club.

Description

  The present invention relates to a golf swing measurement analysis system and a measurement analysis method.

  In the development of golf clubs, golf swings by various types of golfers are measured and accumulated as data. By measuring golf swings by various types of golfers, it is possible to support the development of golf clubs suitable for various types of golfers, and to assist each type of golfer to select an appropriate golf club.

  Conventionally, golf swing measurement has been performed by imaging a golf swing by a golfer with a golf swing measurement device equipped with a camera or the like and based on the acquired image. However, in order to acquire an image capable of performing image measurement with a predetermined accuracy, it is necessary to maintain the shooting condition of the golf swing constant or to some extent uniform. Therefore, it is necessary to calibrate so that the imaging conditions satisfy a predetermined level in each location of the destination in the case of a fixed installation of the golf swing imaging device or a mobile golf swing imaging device. .

  Therefore, as a technique for supporting the evaluation of the golf swing by a simple method, a golf swing measurement method using a golf club having a triaxial gyro sensor in the head portion and the grip portion has been proposed (for example, Patent Documents). 1). According to Patent Document 1, a three-axis gyro sensor for detecting a behavior during a golf swing is built in, and a golf club (hereinafter referred to as an external golf club) designed to have the same appearance, weight, center of gravity, and the like. The golf swing can be measured using a measurement-dedicated golf club.

JP 2008-73210 A

  However, when a golf swing is measured using a golf club dedicated to measurement as shown in Patent Document 1, it is possible to measure a golf swing using a golf club that a golfer normally uses. Can not. Even if the appearance, weight, center of gravity, etc. of the golf club dedicated to measurement are designed to be equivalent to those of a normal golf club, the golfer will perform a golf swing using a golf club different from the normal golf club. Will not change. When a golfer performs a golf swing using a different golf club (that is, a measurement-specific golf club) than usual, the golfer unconsciously tries to perform a golf swing adapted to the measurement-specific golf club. There is a possibility that data on a golf swing that a golfer normally performs cannot be acquired.

  In addition, measurement-specific golf clubs are generally expensive, and it is possible to prepare measurement-specific golf clubs of various sizes, and select a golf club that is close to the golf club normally used by golfers from among them. In reality, it was difficult.

  Then, an object of this invention is to provide the measurement analysis system and measurement analysis method of a golf swing which can measure and analyze the golf swing normally performed by the golfer.

  In order to achieve the above object, a golf swing measurement and analysis system according to the present invention is a measurement and analysis system for measuring and analyzing a golf swing when a golfer hits a golf ball with a golf club, and is attached to and detached from the golf club. A sensor unit that measures the triaxial acceleration and the triaxial angular velocity, which are attached to each other, and a data acquisition unit that obtains time series data of the triaxial acceleration and triaxial angular velocity of the golf club during a golf swing from the sensor unit, Based on the trajectory data extraction unit that extracts the trajectory data of the golf club during a golf swing from the time series data acquired by the data acquisition unit, and based on the trajectory data, the time series data, and the characteristics of the golf club. Golf swing by a golfer using a golf club model An analysis device having a simulation unit for simulating and is characterized in that it comprises.

  In the golf swing measurement and analysis system according to the present invention, the simulation unit simulates a golf swing by a golfer using a rigidity distribution of the golf club as a characteristic of the golf club. Is.

In order to achieve the above object, a golf swing measurement and analysis method according to the present invention is a measurement and analysis method for measuring and analyzing a golf swing when a golfer hits a golf ball with a golf club. Obtaining time series data of the triaxial acceleration and triaxial angular velocity of the golf club during a golf swing from a sensor unit that measures the triaxial acceleration and triaxial angular velocity that are detachably attached; and the obtained time Extracting trajectory data of the golf club during the golf swing from the series data;
And simulating a golf swing by a golfer using a predetermined golf club model based on the trajectory data, the time series data, and the characteristics of the golf club.

  According to the present invention, it is possible to measure and analyze a golf swing normally performed by a golfer.

It is a functional block diagram which shows schematic structure of the measurement analysis system of the golf swing by one Embodiment of this invention. It is a figure which shows an example of the golf club used with the measurement analysis system of the golf swing shown in FIG. It is a flowchart for demonstrating the flow of the process in the measurement analysis system of the golf swing shown in FIG.

  Hereinafter, a golf swing measurement analysis system and a measurement analysis method according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram showing a schematic configuration of a golf swing measurement analysis system according to an embodiment of the present invention. A golf swing measurement and analysis system 1 shown in FIG. 1 is a sensor unit 14 that measures a triaxial acceleration and a triaxial angular velocity provided in a golf club used by a golfer who is a subject, which will be described later with reference to FIG. And an analysis device 2 that acquires time-series data from the sensor unit 14 and executes analysis processing.

  The analysis device 2 is configured by, for example, a personal computer (PC). The analysis device 2 includes a wireless unit 3, a display unit 4, a control unit 5, a calculation unit 6, and a database 7. The calculation unit 6 further includes a time series data acquisition unit 8, a trajectory data extraction unit 9, and a simulation unit 10. Here, the display unit 4 is configured by, for example, a liquid crystal panel, and the control unit 5 and the calculation unit 6 are configured by, for example, a CPU (Central Processing Unit).

  The database 7 includes calculation results by the respective functional units of the calculation unit 6, various input parameters necessary for simulation in the simulation unit 10, golf swing data having various characteristics, club specifications of various golf clubs, and various characteristics. The correspondence information between the golf swing data and the club specifications is stored.

  The time series data acquisition unit 8 acquires time series data of the triaxial acceleration and the triaxial angular velocity of the golf club 11 during the golf swing from the sensor unit 14.

  The trajectory data extraction unit 9 extracts trajectory data including information such as the position and orientation of the golf club 11 during the golf swing from the time series data acquired by the time series data acquisition unit 8.

  The simulation unit 10 simulates a golf swing by a golfer using a predetermined golf club model based on the trajectory data, time series data, and characteristics of the golf club 11 described above.

  FIG. 2 is a diagram showing an example of a golf club used in the measurement analysis system shown in FIG. The golf club 11 is a golf club that a golfer who is a subject normally uses, and has a grip 12 and a head 13. The grip 12 includes a sensor unit 14 that is detachably attached to an end portion (hereinafter referred to as a grip end). The sensor unit 14 includes, for example, a triaxial acceleration sensor and a triaxial gyro sensor, and acquires time-series data of the triaxial acceleration and triaxial angular velocity of the grip end of the golf club 11 during a golf swing.

  Further, the sensor unit 14 includes a memory and a wireless circuit (not shown), and not only stores the measurement data in the memory but also transfers the measurement data to the analysis device 2. Here, when the golfer performs a golf swing using the golf club 11, the sensor unit 14 can perform a normal swing without feeling uncomfortable with the sensor unit 14 being attached. It has a size and weight. In this way, by attaching the sensor unit 14 to the golf club 11 that is normally used by the golfer who is the subject and performing measurement, the sensor unit 14 acquires data of the golf swing that the golfer normally performs. It becomes possible.

  FIG. 3 is a flowchart for explaining the flow of processing in the golf swing measurement analysis system shown in FIG. As described above, the golfer who is the subject performs a golf swing using his / her familiar golf club with the sensor unit 14 attached to the grip end. The sensor unit 14 measures the triaxial acceleration and triaxial angular velocity of the grip end of the golf club during the golf swing, and transmits the measured triaxial acceleration and triaxial angular velocity to the analysis device 2 (step S01).

  And the control part 5 of the analyzer 2 controls the radio | wireless part 3, and receives the measurement data of the triaxial acceleration and triaxial angular velocity of the grip end of the golf club in a golf swing transmitted from the sensor unit 14. At the same time, the time series data acquisition unit 8 is controlled to acquire the time series data of the triaxial acceleration and the triaxial angular velocity of the grip end of the golf club based on the data received by the radio unit 3 (step S02). .

  Further, the control unit 5 controls the trajectory data extraction unit 9 of the calculation unit 7, and based on the time series data acquired by the time series data acquisition unit 8, the trajectory of the grip end during the golf swing (for example, golf swing) The position of the inside grip end, the direction of the grip, etc.) are calculated (step S03). And the control part 5 inputs the data of the locus | trajectory calculated by the locus | trajectory data extraction part 9 with respect to the simulation part 10 as an input parameter of a predetermined golf club model like a cantilever model, for example (step). S04). Here, the simulation unit 10 uses the rigidity distribution of the golf club 11 as the characteristic of the golf club 11. Specifically, the simulation unit 10 reads various other input parameters required for the simulation using the cantilever model such as the rigidity distribution of the golf club model with reference to the database 7.

  Then, the control unit 5 controls the simulating unit 10 to arbitrarily change the rigidity distribution of the golf club model and the like, and based on the locus data calculated by the locus data extracting unit 9, the golf during golf swing The club head speed (head speed), head orientation, and shaft deformation are simulated (step S05). Thus, what golf swing is performed when the golfer who is the subject uses a golf club other than the golf club used for measuring the golf swing in the measurement analysis system 1. It can be simulated.

  Further, the control unit 5 can obtain the optimum club specification for the golfer who is the subject by referring to the correspondence information between the golf swing data stored in the database 7 and the club specification, and present it on the display unit 4. Yes (step S06).

  As described above, according to the golf swing measurement analysis system and the measurement analysis method according to the present embodiment, the golf swing is measured and analyzed by attaching the sensor unit 14 to the golf club that the golfer normally uses. Can measure and analyze a golf swing that is normally performed. Furthermore, in the golf swing measurement analysis system and the measurement analysis method according to the present embodiment, since a dedicated golf club is not used, it is possible to measure and analyze the golf swing at a relatively low cost.

  As described above, according to the golf swing measurement analysis system and the measurement analysis method according to the present embodiment, it is possible to acquire data of a normal golf swing by a golfer, and arbitrarily set the club specifications of the golf club on the simulation. By changing, it is possible to simulate a golf swing when the same golfer uses golf clubs having various club specifications. Thereby, data useful for designing and developing a golf club according to the characteristics of the golf swing by the golfer can be acquired, and data useful for selecting an optimum golf club for a specific golfer can be acquired. .

  Although one embodiment of the present invention has been described, various modifications can be made within the scope of the claims. For example, in the above embodiment, the sensor unit 14 is described as being attached to the grip end of the grip 12 of the golf club 11, but the sensor unit 14 can also be detachably attached to the head 13. The sensor unit 14 acquires time-series data of the triaxial acceleration and the triaxial angular velocity of the head 13 of the golf club 11. Thereby, the measurement analysis of the golf swing by the behavior of the head 13 of the golf club 11 becomes possible.

DESCRIPTION OF SYMBOLS 1 Measurement analysis system 2 Analysis apparatus 3 Radio | wireless part 4 Display part 5 Control part 6 Calculation part 7 Database 8 Time series data acquisition part 9 Trajectory data extraction part 10 Simulation part 11 Golf club 12 Grip 13 Head 14 Sensor unit

Claims (3)

A measurement analysis system for measuring and analyzing a golf swing when a golfer hits a golf ball with a golf club,
A sensor unit that is detachably attached to the golf club, and that measures triaxial acceleration and triaxial angular velocity;
A data acquisition unit that acquires time-series data of the triaxial acceleration and triaxial angular velocity of the golf club during the golf swing from the sensor unit, and the trajectory data of the golf club during the golf swing from the acquired time-series data. An analysis device having a trajectory data extraction unit to be extracted and a simulation unit that simulates a golf swing by a golfer using a predetermined golf club model based on the trajectory data, the time series data, and the characteristics of the golf club When,
A golf swing measurement and analysis system comprising:   The golf swing measurement analysis system according to claim 1, wherein the simulation unit simulates a golf swing by a golfer using a rigidity distribution of the golf club as a characteristic of the golf club. . A measurement analysis method for measuring and analyzing a golf swing when a golfer hits a golf ball with a golf club,
Obtaining time-series data of the triaxial acceleration and triaxial angular velocity of the golf club during a golf swing from a sensor unit that is detachably attached to the golf club and measures triaxial acceleration and triaxial angular velocity. When,
Extracting the trajectory data of the golf club during a golf swing from the acquired time-series data;
Simulating a golf swing by a golfer using a predetermined golf club model based on the trajectory data, the time series data, and the characteristics of the golf club;
A method for measuring and analyzing a golf swing, comprising:

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