SYSTEMS AND METHODS FOR FITTING GOLF EQUIPMENT
A golf equipment fitting system that uses advanced technology to not only objectively identify the optimum equipment for the golfer, but to also identify and help correct swing flaws so that the golfer can achieve optimum performance on the golf course. Thus, in one embodiment, golf fitting includes collecting data related to the golfer's swing and determining if the golfer's swing technique should be modified based at least in part on the collected swing data. When it is determined that the golfer's swing technique should be modified, then providing swing instruction to the golfer. When, however, it is determined that the golfer's swing technique is fine, then collecting data related to how the golfer's swing launches a golf ball. Finally, golf equipment, e.g., golf clubs, can be specified based on the collected swing data and launch data.
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The present application claims priority as a continuation under 35 U.S.C. ¶120 to U.S. patent application Ser. No. 15/421,937, entitled “Systems and Methods for Fitting Golf Equipment,” filed on Feb. 1, 2017, which is a continuation of patent application Ser. No. 13/450,364, entitled “Systems and Methods for Fitting Golf Equipment,” filed on Apr. 18, 2012, now abandoned, which is a continuation of U.S. patent application Ser. No. 13/170,114 (now U.S. Pat. No. 8,696,497), entitled “Systems and Methods for Fitting Golf Equipment,” filed Jun. 27, 2011, which is a continuation of U.S. patent application Ser. No. 11/620,162 (now U.S. Pat. No. 7,967,695), entitled “Systems and Methods for Fitting Golf Equipment,” filed Jan. 5, 2007, which is a continuation of U.S. patent application Ser. No. 10/722,579 (now U.S. Pat. No. 7,166,035), entitled “Systems and Methods for Fitting Golf Equipment,” filed Nov. 26, 2003, which in turn claims priority as a continuation in part under 35 U.S.C. ¶120 to U.S. patent application Ser. No. 10/053,797, entitled “Golf Club Woods with Wood Club Head Having a Selectable Center of Gravity and a Selectable Shaft,” filed Jan. 18, 2002, now abandoned, all which are incorporated herein by reference in their entirety as if set forth in full.BACKGROUND 1. Field of the Inventions
The field of the invention relates generally to the fitting of golf equipment and more particularly to systems and methods designed to improve the golfer's swing and provide more precise club fitting.2. Background Information
Systems and method for fitting golf equipment to a specific golfer are well known. The goal of such conventional club fitting techniques is to help improve a particular golfer's game by providing him with equipment that is suited for his particular swing. Conventional club fitting methods are often based on swing parameters that are poor metrics for defining the golfer's overall swing and equipment needs. For example, conventional fitting methods are often based primarily on club speed as measured by a swing speed gauge. Club speed alone, however, can result in poor club fitting, because club speed is not always a good metric for defining a golfer's equipment needs.
For example, two golfers can have the same club speed of 100 mph, which will often result in the same club recommendation, including club type, shaft length, shaft flex, and club face loft, when conventional fitting techniques are employed. One of these golfers, however, may launch the golf ball at a 15 degree angle relative to the ground, while the other launches the golf ball at a 3 degree angle. Further, one golfer's swing can result in the golf ball rotating at 5000 rotations per minute (rpm's), e.g., using a driver, while the other generates 2500 rpms. The rotations per minute of the golf ball is often referred to as the spin of the golf ball. Using conventional techniques, both golfers will often end up with the same shaft and loft recommendation. In fact, however, these golfers require very different equipment to achieve optimum results.
Another drawback of conventional fitting techniques is that such techniques fit the golfer as he currently plays without consideration of swing flaws, e.g., in the golfer's posture, grip, etc. Thus, existing techniques can condemn a golfer to a lifetime of inconsistent play, because the golfer is being told to use equipment that does not account for, or that masquerades, the golfer's swing faults. For effective equipment fitting to occur, there has to be a marriage of talent, technique, and technology to help a golfer play to his maximum potential and derive more enjoyment out of the game.SUMMARY OF THE INVENTION
A golf equipment fitting system uses advanced technology to not only objectively identify the optimum equipment for a golfer, but to also identify and help correct swing flaws so that the golfer can achieve optimum performance on the golf course. In one embodiment, golf fitting includes collecting data related to the golfer's swing and determining if the golfer's swing technique should be modified based at least in part on the collected swing data. When it is determined that the golfer's swing technique should be modified, then providing swing instruction to the golfer. When, however, it is determined that the golfer's swing technique is fine, then data is collected related to how the golfer's swing launches a golf ball. Finally, golf equipment, e.g., golf clubs, can be specified based on the collected swing data and launch data.
These and other features, aspects, and embodiments of the invention are described below in the section entitled “Detailed Description of the Preferred Embodiments.”
Features, aspects, and embodiments of the inventions are described in conjunction with the attached drawings, in which:
The golf equipment fitting process described herein can be implemented as a multi-step evaluation process that can be broadly divided into two phases. The first phase involves an evaluation of a golfer's current golf equipment and swing technique. The steps comprising the first phase require data collection to give discreet information concerning key attributes of the golfer's swing. The swing data gathered during the first phase can be used to identify major swing flaws so that these flaws can be corrected before fitting the golfer with golf equipment. This can result in better fitting of golf equipment, because if not corrected, the swing flaws will lead to inconsistent results regardless of the equipment being used. Moreover, if the golfer is fit for golf equipment based on his flawed swing, the equipment he was fitted with may no longer be appropriate if he later corrects the swing flaws. Thus, correcting swing flaws prior to beginning the club fitting process can result in a more optimized fitting. To this end, the systems and methods described herein can be used to aid in the identification and correction of swing flaws, which can be an integral part of the fitting process described below.
The second phase can involve collecting launch data and, in certain embodiments, combining it with swing data collected in the previous phase in order to fit the player with optimized equipment including shafts, clubs, and balls.
Evaluating the swing technique of the golfer can comprise observing the golfer hit several golf balls. Often, a video system, such as video system 414 described below, is used to help evaluate the golfer's swing technique using, for example, a swing module 412, which is also described in more detail below.
At this point, certain swing flaws can be readily apparent. These swing flaws can, in certain embodiments, be adjusted prior to proceeding. In this case, identification of more subtle swing flaws can occur at a later stage. Alternatively, evaluation of swing technique and identification of swing flaws, no matter how apparent, can wait until swing evaluation, e.g., as described below in relation to step 106.
In step 104, the golfer's current golf clubs are evaluated. This evaluation can, for example, include measuring the flex, lie angle, and loft of the golfer's golf clubs. The flex can be measured using standard flex charts. The lie angle and loft are standard measurements of the golf club. Briefly, however, at address, the club shaft and the ground create an angle called the lie angle. In this position, the club is perfectly square to the target. Another way to describe the lie angle is the angel between the centerline of the golf club shaft and the horizontal grooves on the clubface. The same lie angle does not suit all players. Physical differences, e.g. height, arm-length, etc. can require a different lie angle for one golfer compared to another. Because proper lie angle is essential to achieving consistently solid, accurate shots, it is important to measure the lie angle of the golfer's clubs. If the golfer's lie angle is “toe up,” he will tend to hook the ball, and will benefit from a flatter lie angle; if the golfer's lie angle is “toe down,” he will have a tendency to slice the ball, and will benefit from a more upright lie angle.
The loft is the angel that the golf club face makes relative to the centerline of the shaft. Adjusting the loft of standard club heads is an important method for compensating for the golfer's tendencies to hit higher or lower trajectories than normal.
Next, in step 106 the golfer's swing is evaluated and data is collected regarding the swing in step 108. This swing data can then be combined, in step 110, with the information gathered in step 102 to generate a baseline performance matrix for the golfer. The performance matrix can be used to help determine if the golfer's swing technique needs modification in step 112. If it is determined that the golfer's technique needs to be modified, then he can be given instruction in step 114. The instruction of step 114 should be designed to achieve specific modifications in the golfer's swing technique that will help the golfer to achieve a more efficient swing. Progress can be closely monitored, e.g., by repeating steps 106-114 as required.
Because the process of
The swing evaluation and data collection of steps 106 and 108 are described in more detail below in relation to the flow chart of
Once it is determined, in step 112, that the golfer's technique is sufficient, the data collected can be combined with launch data, in step 118, to fit the golfer with optimized equipment including shaft, club, and ball. The launch evaluation of step 118 is described in more detail below in relation to the flow chart of
The launch evaluation of step 118 can be followed by further swing evaluation (step 106). Alternatively, all swing evaluation steps can be completed prior to the launch evaluation of step 118. In either case, once the swing evaluation, step 106, and launch evolution 118, are completed in step 116, then the resulting information can be used to specify parameters that describe the optimum golf equipment for the golfer in step 120.
Next, in step 204, data related to the load pattern for the golfer's swing can be collected. The load pattern is defined as the deflection, or load of the golf club shaft as a function of time during the downswing. Different types of load patterns indicate different swing tendencies. For example, a “single crest” load pattern as shown in
Accordingly, a “single crest” load pattern is sometimes said to indicate that the golfer loads the club too quickly at the initiation of the downswing and then decelerates during the rest of the downswing. A situation that is referred to as an “early load”.
A “double crest” load pattern is illustrated in
A “flat line” load pattern is illustrated in
The “incline” load pattern illustrated in
In step 206, swing parameters that define the golfer's swing can be derived from the swing data collected in steps 202 and 204. For example, in one embodiment, a load time can be derived from the load time data collected in step 202. The load time can be an average of the data collected for multiple swings. A peak load, or deflection, can also be derived from the load pattern data collected in step 204. Again the peak load can be averaged over several swings. A swing ramp can also be derived for the golfer. The swing ramp is a measure of the potential energy of the swing and can be measured in miles per hour. Thus, it is similar to the club speed used in conventional techniques.
The data collected in steps 202 and 204, and derived therefrom, can also be used to generate a shaft flex measurement. In other words, the load time, peak load, and swing ramp can be correlated to a standard shaft flex measurement. This measurement can simply be a standard numerical indicator that corresponds to a certain standard shaft flex, i.e., stiff, regular, etc.
The swing parameters derived in step 206 can then be displayed in step 208, e.g., by system 400 described below. For example, the parameters derived in step 206 can be displayed in conjunction with a graph of the load pattern of step 204, i.e., the patterns of
In certain embodiments, a video system, such as video system 414 can be used in conjunction with the swing data collected in steps 202-206 and displayed in step 208 to analyze the golfer's swing. Such a video system can comprise video, or high-speed cameras oriented, for example, directly behind the golfer and pointed down the target line and/or facing the golfer as he makes his swings. The images of the golfer's swing generated by the video system can then be displayed and can be correlated to the load pattern. Thus, when the load pattern indicates a problem, the swing video can be consulted to help assess the problem and to allow the golfer to visualize the swing flaw and begin working to correct it. Various swing flaws, which result in improper load time and load pattern, can then be corrected in step 214. This process, which is useful in modifying the golfer's technique also results in increased ball speed, appropriate launch angle, and spin rates.
As the golfer works to correct his swing in step 214, steps 202-212 can be repeated until a more optimum swing is achieved. This results in a better swing and a better fitting than conventional fitting techniques, because the golfer swing is improved to the point where he can make better more consistent contact, rather than fitting the golfer for equipment when his swing has flaws that will prevent him from consistently making contact even with his new fitted equipment.
Once the golfer's swing technique is sufficient to proceed with the fitting process, a shaft stiffness recommendation can be obtained from the swing parameters derived in step 208. For example, the swing characteristics derived in step 208 can be used to recommend shaft stiffness for the golfer.
Once the swing data is collected, the golfer's swing can be examined to determine how he launches a golf ball.
The spin rate can include components of backspin, sidespin, and rifle spin, each of which can be calculated depending on the embodiment. The launch angle can also include both components of left/right deviation with the target line and the angle with the horizon.
Once the launch data is collected in step 302, ball flight information can be derived in step 304 for each swing of the golf club. For example, based on the images captured by the high speed camera system, the ball speed, spin, and launch angle can be derived as well as how far the ball would have carried, an estimation of how far the ball would travel all together, i.e., including roll, and a deviation from the center line. The deviation can be measured in degrees right or left of the centerline.
The information derived in step 304 can then be displayed in step 306, e.g., by system 400. For example, not only can the values for the derived information be displayed, e.g., in a table, but a graphical illustration of the ball flight can also be displayed.
The process of
It is well known that two different golf clubs can have the same frequency, or flex range, but have entirely different performance characteristics. For example, a shaft can be stiffer in the tip, or stiffer in the butt, when compared to another shaft. Torsional stiffness, or torque, can also play an important part in the overall performance of a golf club. Thus, although two different clubs can be well fitted to the golfer in terms of shaft stiffness, they can produce entirely different launch conditions. By finding the combination of shaft characteristics that maximizes, for example, distance off the tee, the golfer can be properly fitted with the best equipment for his technique. In other words, by continually fine tuning various aspects of the golf shaft to achieve an optimal ball flight, the best equipment for the particular golfer can be identified.
The driver is an important club for every golfer and has some very specific characteristics that may need to be adjusted to obtain the best driver performance for a particular golfer's technique. Accordingly, when fitting the golfer for a driver, various driver lofts (step 324), head types (step 326), and club head centers of gravity (step 328) can be tested to arrive at an optimal driver ball flight characteristic. In addition, different ball types can be tested in step 330 to optimize distance when using the driver. Different ball types have different spin rates, which should be matched to the launch angle and the ball speed. For example, a higher spin rate can cause the ball to get higher in the air off the club face, which can reduce distance. On the other hand, in certain instances a golfer may need to increase the spin rate in order to gain distance. Thus, the object of step 330 is to find the optimum spin characteristics for a particular golfer's ball flight trajectory and other characteristics. Often, the objective in driver fitting is to maximize distance, control, and consistency. Fitting the golfer to the appropriate shaft flex, driver lofts, shaft weights, ball type, club head type, center of gravity of club head, and shaft bend profiles can be intended to achieve as high a ball velocity as possible coupled with the appropriate launch angle and spin rate.
It should be noted that the process of
For wedges, the objective is to be able to achieve various types of short game shots. Some types of shots require maximum spin while others require higher launch angles. The fitting process of
Several techniques can be used to further optimize the club fitting process. For example, an optimum launch angle and spin rate can result in a ball flight that is too high, resulting in a loss of control. Thus, a maximum ball height can be used as a ceiling for the ball flight characteristics when testing various equipment in steps 308-330. For example, a good maximum ceiling height for the ball to fly during a drive is 125 feet. So the goal can be to get as high a launch angle and as Iowa backspin as possible as long as the ball flight is less than 125 ft. A trajectory model can then be used to predict the peak height a ball flies for a given launch condition, as determined in steps 302-306. A relationship that limits the launch angle and backspin for a given ball velocity so that the peak is less than 125 feet is then used when fitting the golfer with equipment. It should be noted that the maximum ceiling might change from golfer to golfer depending on the altitude and standard weather conditions of the golf course that the golfer typically plays.
Further, the process of constantly changing aspects, i.e., shaft, ball, club head. etc. and deriving new information each time can be very time consuming. To reduce the time required, a special type of club head can be used. For example, a driver head that can be manufactured to have the same dimensions but different centers of gravity can be configured so that the driver head can be quickly assembled onto a driver shaft. Different shafts, i.e., shafts and with different types of grips and grip weights can then be maintained and configured to quickly assemble onto the driver head.
For example, in one embodiment, the driver head can be configured to quickly snap, or twists onto the end of a shaft. The driver head can be further configured to work in conjunction with a fastener to ensure that the driver head stays on the shaft during testing. In one implementation, for example, a screw, such as an Alan Head screw, can be inserted through a hole in the driver head and down into the shaft. The screw can then be tightened to ensure the driver head remains secured to the shaft.
Thus, a stable of different shafts comprising different characteristics, and of different driver club heads, comprising different loft angles and centers of gravity, can be maintained so that they can be quickly assemble to create drivers with various characteristics for use, for example, during the fitting process of
In step 332, the lie angle of the golfer's clubs can be measured using, e.g., impact tape on the bottom of each club. This is often done for the irons and wedges. Thus, in step 332, the golfer can take equipment comprising characteristics derived at steps 302-330 and hit balls using the tape. The impact tape can help determine if the club head is in a “toe-up” or “toe-down” position at impact. Adjustments in the lie angle can then be made until the golfer is striking the ball constantly with the “sweet-spot” of the club face.
At this point, all of the information needed to fit the golfer with equipment that will result in optimum performance should be known and parameters associated with, or identifying, the optimum equipment can be derived in step 334.
In certain embodiments, the parameters of step 332 can be used to identify specific clubs, and manufacturers, that should work well for the golfer. The parameters can then be forwarded directly to the manufacturer as part of an order for customized clubs. Then, when the customized clubs arrive, they can be checked using the parameters to make sure they are right and adjusted or returned as required.
In conventional shaft fitting systems, strain gauges are often wired to a system that collects swing data from the strain gauges. The wires, however, can get in the way and impede the golfer's natural swing and thereby compromise the swing data being collected. Using a wireless interface can help eliminate this problem. In certain embodiments, wireless transmitter 402 can be interfaced with several strain gauges disposed along the shaft of the golf club. Often, the strain gauges are disposed inside the shaft itself. Wireless transmitter 402 can, for example, be coupled with a strap configured to strap the transmitter to the golfer's wrist. In such an implementation, there can be wires coming from the end of the shaft to the wireless transmitter, which is strapped to the golfer's wrist. Thus, it is important to use enough wire so that wireless transmitter 402 does not interfere with the golfer's swing.
In an alternative embodiment, each strain gauge can comprise its own wireless transmitter 402. For example, a strain gauge and wireless transmitter 402 can be included in a single device installed inside the shaft. Alternatively, one or more wireless transmitter can be inserted into the shaft, or otherwise disposed on the shaft and interfaced with one or more strain gauges.
Swing data collected from the strain-gauged clubs, e.g., via wireless receiver 404, can be used to help approximate the proper shaft flex and tip section recommendations as describe above. The strain-gauged clubs not only measure how the shaft is loaded but also the deflection of the shaft during the swing. The collected swing data is then sent to shaft module 408 for processing in accordance with the system sand methods described herein. The processed data can then be turned into shaft recommendations. For example, the peak deflection during the downswing can indicate the proper shaft flex for the golfer. The higher the peak load or deflection, the more stiff a shaft the golfer may need, e.g., a golfer with a peak deflection of greater than 4.5″ can need a shaft that is S or X flex. A golfer with a peak deflection of <3″, on the other hand, can need a L, A, or R flex shaft. All others can need an R or S flex shaft. Also, the thrust velocity of the shaft through impact can be determined by shaft module 408 and used to determine an approximate shaft tip recommendation. A golfer with a relatively high thrust velocity of greater than 5 mph, for example, can be biased toward a stiffer shaft.
Additional information such as a lead or lag deflection or a toe up or tow down deflection can be derived from the strain gauges. Such information can indicate flaws in the golfer's swing and therefore may be addressed earlier in the process, or they can indicate golf equipment recommendations. Ultimately, an appropriate ratio of butt flex to tip flex, gram weight, and length can be determined by shaft module 408 using the swing data collected via wireless receiver 404.
Launch fitting component 422 can, in one embodiment, comprise a high-speed camera system 416 and a launch module 410. High-speed camera system 416 can, for example, comprise a color CCD camera combined with a strobe unit. Conventional launch fitting systems often employ black and white cameras; however, this can limit the effectiveness of the club fitting process, because the spin information obtained for the golf ball after club impact can be less accurate than required. This is because the software is configured to process the black and white images cannot always obtain the requisite information with the accuracy required due to the nature of the black and white images.
By using a color high-speed camera, more accurate, or more reliable launch data can be obtained. For example, because a color high-speed camera is used, markings comprising two or more different colors, e.g., blue and red, can be placed on the golf ball and used to derive spin information. Images can, for example, be acquired by firing the strobe as the golf ball is impacted and is launched from the clubface. High-speed camera system 416 can then be configured to acquire two images during this period. The two different color markings will be in a certain position in the first image, but will have changed positions in the second image according to the spin of the golf ball as well as the trajectory of the golf ball.
Using digital signal processing techniques, for example, launch module 410 can be configured to derive the spin and launch information from the images capture by high-speed camera system 416. It should be apparent that in a black and white system, the markings may not be easily discernable, thus rendering the information gathered in conventional systems less accurate.
Swing assessment component 424 can comprise a video system 414 and a swing module 412. Video system 414 can comprise one or more video cameras, or one or more high-speed cameras, depending on the implementation. For example, one video camera can be placed in front of the golfer and one can be positioned down the target line of the golfer's swing. Images captured by the cameras are sent to swing module 412, which can process them and save them into a storage medium. The images can then be pulled up and displayed. The images can be allowed to run, i.e., like a video stream so that the golfer can view his swing. The images can then be used to assess the golfer's swing in association with the information being gathered and displayed by shaft module 408 and launch module 410. To help in the assessment, it can be preferable to allow the images to be paused, rewound, fast forwarded, etc.
It will be understood that shaft module 408, launch module 410, and swing module 412 can comprise the requisite hardware, software, or combination thereof required to implement the functions described above. Thus, each module can comprise a standalone system. In alternative embodiments, however, each module can comprise part of a larger system 406. For example, each module can comprise part of a software program loaded onto a single computer system. An exemplary computer system is described in more detail below. But it should be noted that such a computer system can comprise customized hardware or software components or interfaces as required by a particular module.
For example, as illustrated in
Thus, for the first time launch information can be easily and readily combined with other information, such as that provided by shaft module 408 to more effectively fit the golfer with equipment. Moreover, images of the golfer's swing can be acquired by swing module during the fitting process and used evaluate the golfer's swing. In this manner, flaws in the golfer's swing, e.g., as indicated by the launch or swing data collected by launch module 410 and shaft module 408 respectively, can be viewed and hopefully corrected using the images captured and displayed by swing analysis component 424. Having all three components 420, 422, and 424 available in the same system 400 makes fitting easier and more effective. Further, as explained below, system 400 can be configured to allow a user to access information from each component 420, 422, and 424 as required during the fitting process. This makes fitting even more efficient and effective.
The user can, for example, proceed past opening screen 700 by electing to start a new fitting process using radio buttons 704. This can cause a shaft module screen 800, such as the one illustrated by the screen shot of
Additionally, screen 800 can include a table 804 in which swing parameters, e.g., time, peak flex, ramp potential, and corresponding flex, derived for each swing can be displayed. In the example of
Screen 800 can also include a table 810 that can be used to display information obtained during launch analysis described below. Thus, the user can have launch analysis information available in order to help the user recommend a shaft or analyze the golfer's swing. As can be seen, in the example of
Screen 900, illustrated in the screen shot of
Table 910 can also include a row 918 in which averages for the values displayed in table 910 can be displayed. For example, in the embodiment of
Screen 900 can also include a graphic data area 914 for displaying graphical information related to ball flight as derived, e.g., by launch module 410. Thus, a graph of the ball fight illustrating height, e.g., in feet, and distance, e.g., in yards, can be displayed in area 914. Additionally, another graphical area 912 can be included to graphically illustrate the deviation from the centerline. Thus, area 912 can be configured to graphically illustrate a distance, e.g., in yards, and a deviation, e.g., in degrees. Radio control buttons 904 can be included to allow the user to graphically display, in areas 914 and 912, data for each swing, a particular swing such as the last swing, the average of all swings, etc. Similar control buttons 808 can be included in screen 800.
Screen 900 can also include a tool bar 902 in which information related to the equipment currently being used can be displayed. Thus, the golfer can make a few swings and launch data can be gathered and displayed on screen 900. Based on the information, the user can suggest equipment changes, i.e., a lower spinning ball, a stiffer shaft, etc. and new data can be acquired and displayed. Each time equipment, or aspects of the equipment, is changed, the information in toolbar 902 can be updated. This way, neither the user, nor the golfer, is required to remember what equipment they are currently using. This is helpful, because the golfer can make several equipment changes, based on the launch information being collected and displayed, until an optimum ball flight is achieved.
A launch optimization screen 1000, as illustrated in
Swing module screen 1100, an example of which is illustrated by the screen shot of
Launch options screen 1200, illustrated by the example screen shot of
Options screen 1300 can be included to display information related to each of screen 800, 900, and 1100 simultaneously. Thus, screen 1300 can comprise a shaft area 1302 in which controls for the operation of shaft module 408 can be manipulated. Similarly, screen 1300 can comprise launch area 1304 and swing area 1306 in which controls for the operation of launch module 410 and swing module 412, respectively, can be manipulated.
Thus, the fitting processes and techniques described above can be implemented via a kiosk, such as kiosk 600, using screens such as those just described. As mentioned, modules 408, 410, and 412 can be implemented as software modules, possibly with associated specialized hardware interfaces, within a computer system in kiosk 600. In other words, kiosk 600 can comprise a computer system loaded with software modules 408, 410, and 412.
As will be understood, some type of processing system is always at the heart of any computer system, whether the processing system includes one or several processors included in one or several devices. Thus, computer system 1400 of
Processor 1410, in one embodiment, comprises a plurality of processing circuits, such as math coprocessor, network processors, digital signal processors, audio processors, etc. These various circuits can, depending on the embodiment, be included in a single device or multiple devices. Processor 1410 also comprise an execution area into which instructions stored in memory 1404 are loaded and executed by processor 1410 in order to control the operation of computer system 1400. Thus, for example, by executing instructions stored in memory 1404, processor 1410 can be configured to implement the functionality of modules 408, 410, and 412.
Memory 1404 can comprise a main memory configured to store the instructions just referred to. In one embodiment, memory 1404 can also comprise a secondary memory used to temporarily store instructions or to store information input into computer system 1400, i.e., memory 1404 can act as scratch memory also. Memory 1404 can comprise, depending on the embodiment, a plurality of memory circuits, which can be included as a single device, or as a plurality of devices.
Storage 1406 can include, in certain embodiments, a plurality of drives configured to receive various electronic media. For example, in one embodiment, storage 1406 includes a floppy drive configured to receive a floppy disk, a compact disk drive configured to receive a compact disk, and/or a digital video disk drive configured to receive a digital videodisk. In another embodiment, storage 1406 can also include disk drives, which can include removable disk drives. The drives included in storage 1406 can be used, for example, to receive electronic media that has stored thereon instructions to be loaded into memory 1404 and used by processor 1410 to control the operation of computer system 1400.
I/O interfaces 1408 can be configured to allow computer system 1400 to interface with devices such as video system 414, high-speed camera system 416, and receiver 404. Thus, I/O interface 1408 can comprise the interface hardware required to receive signals from the various components used to collect the data used by modules 408, 410, and 412.
Display interface 1412 can be configured to allow computer system 1400 to interface with a display. Thus, computer system 1400 can display the information, described in relation to the example screen shots described above, to a user via display interface 1412.
User interface 1414 can be configured to allow a user to interface with computer system 1400. Thus, depending on the embodiment, user interface 1414 can include a mouse interface, a keyboard interface, an audio interface, etc.
It should be clear that the general description of a computer system provided above is by way of example only and should not be seen to limit implementation of system 400 to any particular computer architecture or implementation. Rather any architecture or implementation capable of implementing the processes and functionality described above can be used to implement the systems and methods described herein.
While certain embodiments of the inventions have been described above, it will be understood that the embodiments described are by way of example only. Accordingly, the inventions should not be limited based on the described embodiments. Rather, the scope of the inventions described herein should only be limited in light of the claims that follow when taken in conjunction with the above description and accompanying drawings.
1. A method for fitting a golfer with golf equipment using a launch monitor and an optimization engine running on a processor, the method comprising:
- (a) in the launch monitor, receiving launch data related to how the golfer launches a golf ball using a golf club, the golf club comprising a grip, shaft, and a club head, the club head comprising a loft, center of gravity, an orientation, and a weight distribution;
- (b) determining velocity information, spin information, and launch angle information imparted to the golf ball based on the launch data;
- (c) in a processor, determining optimized values of velocity, spin, and launch angle to achieve a combination of high repeatability, a tight ball placement dispersion, and distance equal to or greater than at least a fixed minimum distance, based on the determined velocity, spin, and launch angle information and the extrapolated distance and flight path and not based on linear relationships, wherein the determining optimized values of velocity, spin and launch angle are determined by maximizing velocity for a given golfer and determining optimized values of spin and launch angle based on the maximized velocity;
- (d) correlating the optimized values of velocity, spin, and launch angle with changes in at least one of the golf ball, grip, shaft, and club head required to achieve the optimized values of velocity, spin, and launch angle; and
- iteratively making changes to the golf club based on the correlated changes and repeating (a)-(d) until the determined velocity information, spin information, and launch information approximately matches the optimized values of velocity spin and launch angle.
2. The method of claim 1, wherein the change in the club head is related to the center of gravity.
3. The method of claim 1, further comprising extrapolating a distance and flight path based on the velocity, spin, and launch angle information; and
- displaying information related to the extrapolated distance and flight path as well as the launch data.
4. The method of claim 3, wherein the information related to the launch data is displayed in a graphical format.
5. The method of claim 1, further comprising capturing images of a golfer's swing with a video system and determining swing data based on the captured images.
6. The method of claim 5, further comprising correlating the captured images to a load pattern of the golfer's swing.
7. The method of claim 5 further comprising, determining if the golfer's swing technique should be modified based on the determined swing data, and modifying the golfer's swing technique based on the swing data when it is determined that the swing technique should be modified.
8. The method of claim 5, further comprising correlating the swing data to changes in parameters related to the shaft being used in step (a).
9. A method for fitting a golfer with golf equipment using a launch monitor and an optimization engine running on a processor, the method comprising:
- (a) capturing images of a golfer's swing with a video system and determining swing data based on the captured images;
- (b) receiving further swing data from sensors;
- (c) deriving a baseline swing matrix based on the swing data;
- (d) determining if the golfer's swing technique should be modified based on the baseline swing matrix and modifying the golfer's swing technique when it is determined that it should be modified;
- (e) specifying shaft characteristics based on the baseline swing matrix;
- (f) in the launch monitor, receiving launch data related to how the golfer launches a golf ball using a golf club, the golf club comprising a grip, shaft that comprises the shaft characteristics, and a club head, the club head comprising a loft, center of gravity, an orientation, and a weight distribution;
- (g) determining velocity information, spin information, and launch angle information imparted to the golf ball based on the launch data;
- (h) in a processor, determining optimized values of velocity, spin, and launch angle to achieve a combination of high repeatability, a tight ball placement dispersion, and distance equal to or greater than at least a fixed minimum distance, based on the determined velocity, spin, and launch angle information and the extrapolated distance and flight path and not based on linear relationships, wherein the determining optimized values of velocity, spin and launch angle are determined by maximizing velocity for a given golfer and determining optimized values of spin and launch angle based on the maximized velocity;
- (i) correlating the optimized values of velocity, spin, and launch angle with changes in at least one of the golf ball, grip, shaft, and club head required to achieve the optimized values of velocity, spin, and launch angle; and
- iteratively making changes to the golf club based on the correlated changes and repeating (f)-(i) until the determined velocity information, spin information, and launch information approximately matches the optimized values of velocity spin and launch angle.
10. The method of claim 9, in a swing module, collecting swing data from strain gauges related to how the golfer swings the golf club, the swing data comprising a load time, load pattern, peak load, and swing ramp;
- determining if the golfer's swing technique should be modified based at least in part on the collected swing data; and
- based on a determination that the golfer's swing technique should be modified, using the swing data to correct the swing flaws.
11. The method of claim 1, in a swing module, collecting swing data from strain gauges related to how the golfer swings the golf club, the swing data comprising a load time, load pattern, peak load, and swing ramp;
- determining if the golfer's swing technique should be modified based at least in part on the collected swing data; and
- based on a determination that the golfer's swing technique should be modified, using the swing data to correct the swing flaws.