CN109350952B - Visualization method and device applied to golf ball flight trajectory and electronic equipment - Google Patents
Visualization method and device applied to golf ball flight trajectory and electronic equipment Download PDFInfo
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- CN109350952B CN109350952B CN201811268897.0A CN201811268897A CN109350952B CN 109350952 B CN109350952 B CN 109350952B CN 201811268897 A CN201811268897 A CN 201811268897A CN 109350952 B CN109350952 B CN 109350952B
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0021—Tracking a path or terminating locations
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0021—Tracking a path or terminating locations
- A63B2024/0028—Tracking the path of an object, e.g. a ball inside a soccer pitch
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/32—Golf
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Abstract
The invention discloses a visualization method, a visualization device and electronic equipment applied to a golf flight trajectory, which belong to the technical field of golf, and comprise the steps of obtaining basic parameter information, wherein the basic parameter information comprises ball mass, the maximum cross section area of a ball, the diameter of the ball, the volume of the ball, the rotating speed of the ball, the takeoff angle of the ball, the mass of a ball rod, the instantaneous speed of the ball hitting of the ball rod, a coefficient of restitution, air density, gravitational acceleration and the speed information of the ball rod head; and calculating the flight trajectory of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system if the basic parameter information is judged to be in accordance with the preset format requirement information, assigning the calculation result of the obtained flight trajectory to a trajectory parameter dialog box of a visual interface, and carrying out visual display. The invention can accurately simulate the flight path of the golf ball and realize the technical effect of visually displaying the flight path of the golf ball.
Description
Technical Field
The invention belongs to the technical field of golf, and particularly relates to a visualization method and device applied to a golf flight trajectory and electronic equipment.
Background
"Golf" is a sport that integrates the enjoyment of natural enjoyment, physical exercise and games. The game of golf is a ball game played with a stick in a hole. The teaching of golf requires the active research and development of a visual golf ball flight trajectory calculation method to realize the prediction of the golf ball movement trajectory and improve the teaching efficiency.
As for the visualization method applied to the flight trajectory of a golf ball, the prior art visualization method applied to the flight trajectory of a golf ball mainly adopts an electronic golf ball, and the electronic golf ball includes an outer layer, an intermediate layer and an electronic integrated inner core. However, the flight trajectory of a golf ball is affected by various factors, and the electronic golf ball and a ball used in actual golf training or competition have differences in elasticity, weight, and athletic performance, and thus the flight trajectory of the golf ball cannot be accurately simulated and calculated and analyzed.
In summary, the conventional techniques applied to the visualization method of the flight trajectory of the golf ball have the technical problems that the flight trajectory of the golf ball cannot be accurately simulated, and the flight trajectory of the golf ball is difficult to visually display.
Disclosure of Invention
The invention aims to solve the technical problems that the flight trajectory of a golf ball cannot be accurately simulated and is difficult to visually display in the conventional visual method applied to the flight trajectory of the golf ball.
In order to solve the technical problems, the invention provides a visualization method applied to a golf flight trajectory, which comprises the steps of obtaining basic parameter information, wherein the basic parameter information comprises ball mass information, ball maximum sectional area information, ball diameter information, ball volume information, ball rotating speed information, ball takeoff angle information, ball rod mass information, ball rod hitting instantaneous speed information, recovery coefficient information, air density information, gravity acceleration information and rod head speed information; inputting the acquired basic parameter information into a spreadsheet; according to preset format requirement information, checking basic parameter information in the input electronic form, and judging whether the basic parameter information and the format requirement information are in accordance; if so, importing the basic parameter information into an MATLAB working space; calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain a calculation result of the flight path; and assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display.
Further, the inputting the obtained basic parameter information into an electronic form includes editing the ball mass information, the ball maximum cross-sectional area information, the ball diameter information, the ball volume information, the ball rotation speed information, the ball takeoff angle information, the club mass information, the club hitting instantaneous speed information, the restitution coefficient information, the air density information, the gravitational acceleration information, and the club head speed information into an Excel form.
Further, the basic parameter information in the input electronic form is examined according to preset format requirement information, and whether the basic parameter information and the format requirement information are in accordance with each other is judged, wherein the preset format requirement information at least comprises data format information; comparing the basic parameter information in the input electronic form with the data format information, and judging whether the basic parameter information in the input electronic form is matched with the data format information; if the matching is successful, the matching is satisfied; and if not, changing the basic parameter information in the input electronic form so as to enable the basic parameter information in the input electronic form to be matched with the data format information.
Further, the basic parameter information in the input electronic form is examined according to preset format requirement information, and whether the basic parameter information and the format requirement information are in accordance with each other is judged, wherein the preset format requirement information also comprises data integrity information; comparing the basic parameter information in the input electronic form with the data integrity information, and judging whether the basic parameter information in the input electronic form is matched with the data integrity information; if the matching is successful, the matching is satisfied; and if not, changing the basic parameter information in the input electronic form so as to enable the basic parameter information in the input electronic form to be matched with the data integrity information.
Further, the calculating the flight trajectory of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain the calculation result of the flight trajectory comprises that the three-dimensional coordinate system comprises a first coordinate axis, a second coordinate axis and a third coordinate axis; calculating expressions of the instantaneous takeoff speed of the golf ball and the instantaneous hitting speed of the golf club according to a momentum conservation law; and correcting the takeoff instantaneous speed of the golf ball according to the recovery coefficient information.
Further, the calculating the flight trajectory of the golf ball according to the basic parameter information introduced into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain the calculation result of the flight trajectory comprises performing vector decomposition on the first coordinate axis, the second coordinate axis and the third coordinate axis according to the ball mass information, the ball maximum cross-sectional area information, the ball diameter information, the ball volume information, the ball rotating speed information, the ball takeoff angle information, the ball mass information, the club hitting instantaneous speed information, the air density information, the gravitational acceleration information and the club head speed information to calculate the acceleration on the first coordinate axis, the second coordinate axis and the third coordinate axis; calculating the angular velocity of the golf ball according to the ball rotation speed information to obtain an expression of the angular velocity and the takeoff instantaneous velocity; correcting a drag coefficient of the golf ball and a lift coefficient of the golf ball according to a function containing a spin ratio; calling a calculation function built in MATLAB according to the step length and the constraint condition of a preset order, and solving a target function through a finite difference method so as to calculate the flight path of the golf ball and obtain the calculation result of the flight path; the constraint conditions comprise the club head speed information, the sphere rotating speed information and the sphere takeoff angle information; the objective function includes a distance of the golf ball on the first coordinate axis, a distance on the second coordinate axis, and a distance on the third coordinate axis.
Further, the step of assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface so as to perform visual display and then storing the calculation result, and displaying a warning dialog box in the visual interface.
According to still another aspect of the present invention, there is also provided a visualization device applied to a flight trajectory of a golf ball, the device including a basic parameter information obtaining module for obtaining basic parameter information including ball mass information, ball maximum sectional area information, ball diameter information, ball volume information, ball rotation speed information, ball takeoff angle information, club mass information, club hitting instantaneous speed information, restitution coefficient information, air density information, gravitational acceleration information, and club head speed information; the information input module is used for inputting the acquired basic parameter information into an electronic form; the information judgment module is used for checking the basic parameter information in the input electronic form according to preset format requirement information and judging whether the basic parameter information and the format requirement information are in accordance; an import information module for importing the basic parameter information into an MATLAB working space; the flight path calculation module is used for calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system so as to obtain the calculation result of the flight path; and the output display module is used for assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface so as to perform visual display.
According to yet another aspect of the present invention, the present invention further provides an electronic device for visualization of a flight trajectory of a golf ball, comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor when executing the program implements the steps of obtaining basic parameter information, the basic parameter information comprising ball mass information, ball maximum cross-sectional area information, ball diameter information, ball volume information, ball rotation speed information, ball takeoff angle information, club mass information, club hitting instantaneous speed information, restitution coefficient information, air density information, gravitational acceleration information and club head speed information; inputting the acquired basic parameter information into a spreadsheet; according to preset format requirement information, checking basic parameter information in the input electronic form, and judging whether the basic parameter information and the format requirement information are in accordance; if so, importing the basic parameter information into an MATLAB working space; calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain a calculation result of the flight path; and assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display.
According to yet another aspect of the present invention, there is also provided a computer readable storage medium for visualization of a flight trajectory of a golf ball, having a computer program stored thereon, wherein the program, when executed by a processor, performs the steps of obtaining basic parameter information including ball mass information, ball maximum cross-sectional area information, ball diameter information, ball volume information, ball rotational speed information, ball takeoff angle information, club mass information, club stroke instantaneous speed information, restitution coefficient information, air density information, gravitational acceleration information, and club head speed information; inputting the acquired basic parameter information into a spreadsheet; according to preset format requirement information, checking basic parameter information in the input electronic form, and judging whether the basic parameter information and the format requirement information are in accordance; if so, importing the basic parameter information into an MATLAB working space; calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain a calculation result of the flight path; and assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display.
Has the advantages that:
the invention provides a visualization method, a device and electronic equipment applied to golf flight trajectories, which are characterized in that ball mass information, ball maximum sectional area information, ball diameter information, ball volume information, ball rotating speed information, ball takeoff angle information, ball rod mass information, ball rod hitting instantaneous speed information, coefficient of restitution information, air density information, gravity acceleration information and rod head speed information in acquired basic parameter information are input into an electronic table. And then according to the preset format requirement information, checking the basic parameter information in the input electronic form to judge whether the basic parameter information and the format requirement information are in accordance. And if the basic parameter information is consistent with the format requirement information, importing the basic parameter information into the MATLAB working space. And then calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain the calculation result of the flight path. And meanwhile, assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display. And then the simulated flight trajectory of the golf ball is displayed to the client through a dialog box of the visual interface module, so that the result of the calculation and output of the flight trajectory of the golf ball is concise and clear, and the simulation and output of the flight trajectory of the golf ball are realized. Therefore, the technical effects that the flight trajectory of the golf ball can be accurately simulated and visualized display of the flight trajectory of the golf ball is realized are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flow chart diagram of a visualization method applied to a flight trajectory of a golf ball according to an embodiment of the present invention;
FIG. 2 is a block diagram of an apparatus for visualizing a flight trajectory of a golf ball according to an embodiment of the present invention;
fig. 3 is a block diagram of an electronic device applied to a method for visualizing a flight trajectory of a golf ball according to an embodiment of the present invention;
fig. 4 is a block diagram of a computer-readable storage medium applied to visualization of a flight trajectory of a golf ball according to an embodiment of the present invention.
Detailed Description
The invention discloses a visualization method, a device and electronic equipment applied to golf flight trajectories, which are characterized in that ball mass information, ball maximum sectional area information, ball diameter information, ball volume information, ball rotating speed information, ball takeoff angle information, ball rod mass information, ball rod hitting instantaneous speed information, coefficient of restitution information, air density information, gravity acceleration information and rod head speed information in acquired basic parameter information are input into a spreadsheet. And then according to the preset format requirement information, checking the basic parameter information in the input electronic form to judge whether the basic parameter information and the format requirement information are in accordance. And if the basic parameter information is consistent with the format requirement information, importing the basic parameter information into the MATLAB working space. And then calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain the calculation result of the flight path. And meanwhile, assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display. And then the simulated flight trajectory of the golf ball is displayed to the client through a dialog box of the visual interface module, so that the result of the calculation and output of the flight trajectory of the golf ball is concise and clear, and the simulation and output of the flight trajectory of the golf ball are realized. Therefore, the technical effects that the flight trajectory of the golf ball can be accurately simulated and visualized display of the flight trajectory of the golf ball is realized are achieved.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention; the "and/or" keyword referred to in this embodiment represents sum or two cases, in other words, a and/or B mentioned in the embodiment of the present invention represents two cases of a and B, A or B, and describes three states where a and B exist, such as a and/or B, which represents: only A does not include B; only B does not include A; including A and B.
Also, in embodiments of the invention where an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the present invention.
Example one
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for visualizing a flight trajectory of a golf ball according to an embodiment of the present invention. The embodiment of the invention provides a visualization method applied to a golf ball flight trajectory, which comprises the following steps:
step S100, obtaining basic parameter information, wherein the basic parameter information comprises ball mass information, ball maximum sectional area information, ball diameter information, ball volume information, ball rotating speed information, ball takeoff angle information, ball rod quality information, ball rod hitting instantaneous speed information, coefficient recovery information, air density information, gravity acceleration information and rod head speed information.
With continued reference to fig. 1, the ball mass information may refer to the mass of the golf ball. The sphere maximum cross-sectional area information may refer to a maximum cross-sectional area of the golf ball. The sphere diameter information may refer to a diameter of the golf ball. The sphere volume information may refer to the volume of the golf ball. The ball spin rate information may refer to the spin rate of the golf ball. The ball takeoff angle information may refer to a takeoff angle of a golf ball. The club quality information may refer to the quality of the club used. The club shot instantaneous speed information may refer to an instantaneous speed at which the club hits a ball. The recovery coefficient information may refer to a recovery coefficient. The air density information may refer to air density. The gravitational acceleration information may refer to gravitational acceleration. The head speed information may refer to a head speed at the time of a golf club impact. Basic parameters involved in the calculation of the flight trajectory, such as the mass of the golf ball, the maximum cross-sectional area of the golf ball, the diameter of the golf ball, the volume of the golf ball, the spin rate of the golf ball, the take-off angle of the golf ball, the mass of the club used, the instantaneous velocity at which the club hits the ball, the coefficient of restitution, the air density, and the gravitational acceleration, may be compiled into an Excel table in step S110 described below.
Step S110, inputting the acquired basic parameter information into an electronic form.
Editing the ball mass information, the ball maximum cross-sectional area information, the ball diameter information, the ball volume information, the ball rotation speed information, the ball takeoff angle information, the club mass information, the club hitting instantaneous speed information, the coefficient of restitution information, the air density information, the gravitational acceleration information, and the club head speed information into an Excel table.
Referring to fig. 1, the spreadsheet may refer to a spreadsheet that can input, output, and display data, and also calculate some simple addition and subtraction methods using formulas; and the method can help the user to make various complex form documents, perform complicated data calculation, and display the input data as a form with excellent visibility after performing various complex statistical operations. Basic parameters involved in the calculation of the flight trajectory in step S100, including related parameters such as the mass of the golf ball, the maximum cross-sectional area of the golf ball, the diameter of the golf ball, the volume of the golf ball, the rotational speed of the golf ball, the takeoff angle of the golf ball, the mass of the club used, the instantaneous speed of the club hitting the ball, the coefficient of restitution, the air density, and the gravitational acceleration, may be pre-compiled into an Excel table, and then basic parameter information required for the determination may be provided to step S120 described below.
Step S120, according to preset format requirement information, checking the basic parameter information in the input electronic form, and determining whether the basic parameter information and the format requirement information are in accordance.
The preset format requirement information at least comprises data format information; and comparing the basic parameter information in the input electronic form with the data format information, and judging whether the basic parameter information in the input electronic form is matched with the data format information. If the two are matched, the two are matched. And if not, changing the basic parameter information in the input electronic form so as to enable the basic parameter information in the input electronic form to be matched with the data format information.
The preset format requirement information also comprises data integrity information; and comparing the basic parameter information in the input electronic form with the data integrity information, and judging whether the basic parameter information in the input electronic form is matched with the data integrity information. If the matching is successful, the matching is satisfied; and if not, changing the basic parameter information in the input electronic form so as to enable the basic parameter information in the input electronic form to be matched with the data integrity information.
With continued reference to fig. 1, the data format information may refer to a format requirement to which the content in the Excel table is to conform. The data integrity information can refer to the completeness of data to be met by the content in the Excel table. The data reading module may refer to a data reading module developed using a MATLAB/GUI module. The format and data integrity of the Excel table can be inspected through a data reading module according to the preset format requirements, after the inspection is qualified, an Excel reading function built in MATLAB (software) is called through the data reading module, the read Excel table content in the step S110 can be imported into a working space of MATLAB, and the read Excel table content is converted into a language format which can be recognized by a computing module (the computing module can refer to a computing module developed by utilizing an MATLAB/GUI module).
MATLAB (software) can refer to commercial mathematical software produced by MathWorks corporation in America, and is used for advanced technical computing language and interactive environment of algorithm development, data visualization, data analysis and numerical calculation, and mainly comprises two major parts of MATLAB and Simulink.
Meanwhile, the visual interface module may refer to a visual interface module developed using a MATLAB/GUI module. Blank flight trajectory basic parameter dialogs may be pre-edited in the visualization interface module. The data reading module reads an Excel form of the basic parameters of the flight trajectory edited in advance, examines the read Excel form, and revises the Excel form content again if the read Excel form content does not meet the preset format requirement or the data is incomplete; and if the examination is qualified, the data reading module calls an Excel reading function built in the MATLAB, the read Excel table content is imported into a working space of the MATLAB, meanwhile, the data reading module assigns the read Excel table content to a blank flight trajectory calculation basic parameter dialog box in a one-to-one correspondence mode of data arrangement and data arrangement of a corresponding dialog box in the visual interface module, and converts the read Excel table content into a text format which can be recognized by the calculation module. The basic parameter information in the input electronic form in step S110 needs to be simultaneously consistent with the data format information and the integrity information, so that the input electronic form can be judged to be qualified for examination.
And step S130, if the basic parameter information is consistent with the basic parameter information, importing the basic parameter information into an MATLAB working space.
With continued reference to fig. 1, if it is determined through the above step S120 that the basic parameter information and the format requirement information are in agreement, the read Excel form content in the above step S110 is imported into the working space of MATLAB, and the read Excel form content is converted into a language format that can be recognized by the computing module in the following step S140. Then, information data necessary for calculating the flight trajectory of the golf ball is provided to step S140 described below through step S130.
And step S140, calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain the calculation result of the flight path.
The three-dimensional coordinate system comprises a first coordinate axis, a second coordinate axis and a third coordinate axis; calculating expressions of the instantaneous takeoff speed of the golf ball and the instantaneous hitting speed of the golf club according to a momentum conservation law; and correcting the takeoff instantaneous speed of the golf ball according to the recovery coefficient information. And performing vector decomposition on the first coordinate axis, the second coordinate axis and the third coordinate axis according to the ball mass information, the ball maximum sectional area information, the ball diameter information, the ball volume information, the ball rotating speed information, the ball takeoff angle information, the ball arm mass information, the ball arm hitting instantaneous speed information, the air density information, the gravity acceleration information and the head speed information, and calculating the acceleration on the first coordinate axis, the second coordinate axis and the third coordinate axis.
Calculating the angular velocity of the golf ball according to the ball rotation speed information to obtain an expression of the angular velocity and the takeoff instantaneous velocity; correcting a drag coefficient of the golf ball and a lift coefficient of the golf ball according to a function containing a spin ratio; and calling a calculation function built in MATLAB according to the step length and the constraint condition of the preset order, and solving the objective function by a finite difference method so as to calculate the flight path of the golf ball and obtain the calculation result of the flight path. The constraint conditions comprise the club head speed information, the sphere rotating speed information and the sphere takeoff angle information; the objective function includes a distance of the golf ball on the first coordinate axis, a distance on the second coordinate axis, and a distance on the third coordinate axis.
With continued reference to fig. 1, the first coordinate axis may refer to the X axis; the second coordinate axis may refer to the Y-axis; the third coordinate axis may refer to the Z-axis. Constraints may include club head speed at the time the golf club strikes a ball, the spin rate of the golf ball, and the take-off angle of the golf ball. The objective function may include distances of the golf ball on the X-axis, Y-axis, and Z-axis. A three-dimensional coordinate system can be established in the calculation module in advance, positive directions of an X axis, a Y axis and a Z axis are determined, the X axis is defined as the positive front facing the golfer in a batting preparation state, the positive direction of the Y axis is defined as the direction of taking off the golf ball and keeping away from the golfer, and the positive direction of the Z axis is defined as the direction of taking off the golf ball and keeping away from the horizontal plane; and then according to different stress conditions in the batting process and the flying process, the acceleration in each direction of the coordinate axis is calculated by utilizing the momentum conservation law and the Newton's second law, and the flying track is calculated by a finite difference method to improve the result output efficiency.
And calculating the flight path of the golf ball according to a flight path calculation formula edited in advance by using a calculation module to import the Excel table content of the MATLAB working space: during the striking process, an expression of the instantaneous speed of the golf ball taking off and the instantaneous speed of the golf club at the striking moment is solved according to the momentum conservation law, and the instantaneous speed of the golf ball taking off is corrected by utilizing a coefficient of restitution in consideration of the loss of heat and the like. During the flying process, the golf ball flying in the air mainly acts on the gravity in the Z-axis negative direction, the air buoyancy in the Z-axis positive direction, the resistance opposite to the moving direction of the ball body and the lifting force vertical to the moving direction, the vectors are respectively decomposed on the X-axis, the Y-axis and the Z-axis, the resultant force in each direction is respectively solved, and the acceleration in each direction is calculated according to the Newton's second law; because the drag coefficient and the lift coefficient can change along with the rotating speed of the golf ball, the angular speed of the golf ball needs to be solved through the rotating speed of the golf ball, an expression of the rotation ratio (autorotation) about the angular speed and the takeoff instantaneous speed of the golf ball is deduced, and the drag coefficient and the lift coefficient are corrected by using a function containing the rotation ratio (autorotation); and finally, taking the distances of the golf ball on an X axis, a Y axis and a Z axis as an objective function, taking the club head speed, the golf ball rotating speed and the takeoff angle of the golf ball when the golf club hits a ball as constraint conditions, calling an MATLAB built-in calculation function, and setting corresponding step length according to the order to increase the simulation calculation precision of the flight trajectory of the golf ball.
It should be noted that, because the visualization method applied to the golf ball flight trajectory provided by the embodiment of the present invention integrates the basic parameters to be calculated on the golf ball flight trajectory into the specified Excel form file in advance, and the function built in the MATLAB is called to implement the background running of the input parameters in the program, the dialog box of the visualization interface module in the following step S150 is displayed to the user, so that the calculation output result is concise, and the problem that the trajectory simulation and output can be implemented only by purchasing expensive golf ball flight trajectory monitoring equipment is also solved. In addition, because the method adopts the finite difference method in the calculation process, the method realizes that the computer with low configuration can also quickly respond, and the calculation result is quickly output.
And S150, assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display. And storing the calculation result, and displaying a warning dialog box in the visual interface.
Continuing with FIG. 1, the data save module can refer to a data save module developed using a MATLAB/GUI module. The data storage module stores and exports the calculation result for guiding to make a proper training plan and evaluating the golf swing exercise result, and meanwhile, the data storage module assigns the calculation result to a blank calculation result parameter dialog box in the visual interface module in a one-to-one correspondence mode of data arrangement and data arrangement of a corresponding dialog box in the visual interface module. After the data of the calculation result of the flight trajectory is stored, the exit module (the exit module can refer to an exit module developed by using an MATLAB/GUI module) ends the calculation process of the flight trajectory at this time, and before the end and the closing, the exit module pops up a calculation result data storage warning dialog box to prompt the user to store the matching result data again, so that the data loss caused by the wrong operation is prevented.
The invention provides a visualization method applied to a golf flight track, which is characterized in that ball mass information, ball maximum sectional area information, ball diameter information, ball volume information, ball rotating speed information, ball takeoff angle information, ball rod quality information, ball rod hitting instantaneous speed information, recovery coefficient information, air density information, gravity acceleration information and rod head speed information in acquired basic parameter information are input into a spreadsheet. And then according to the preset format requirement information, checking the basic parameter information in the input electronic form to judge whether the basic parameter information and the format requirement information are in accordance. And if the basic parameter information is consistent with the format requirement information, importing the basic parameter information into the MATLAB working space. And then calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain the calculation result of the flight path. And meanwhile, assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display. And then the simulated flight trajectory of the golf ball is displayed to the client through a dialog box of the visual interface module, so that the result of the calculation and output of the flight trajectory of the golf ball is concise and clear, and the simulation and output of the flight trajectory of the golf ball are realized. Therefore, the technical effects that the flight trajectory of the golf ball can be accurately simulated and visualized display of the flight trajectory of the golf ball is realized are achieved.
Based on the same inventive concept, the application provides a visualization device applied to the flight trajectory of a golf ball corresponding to the first embodiment, which is detailed in the second embodiment.
Example two
Fig. 2 is a structural diagram of an apparatus for visualizing a flight trajectory of a golf ball according to an embodiment of the present invention, as shown in fig. 2. The second embodiment of the present invention provides a visualization device applied to a flight trajectory of a golf ball, where the device includes:
a basic parameter information obtaining module 210, wherein the basic parameter information obtaining module 210 is configured to obtain basic parameter information, and the basic parameter information includes ball mass information, ball maximum cross-sectional area information, ball diameter information, ball volume information, ball rotation speed information, ball takeoff angle information, club mass information, club hitting instantaneous speed information, coefficient of restitution information, air density information, gravitational acceleration information, and club head speed information;
an information input module 220, wherein the information input module 220 is used for inputting the acquired basic parameter information into a spreadsheet;
an information determining module 230, where the information determining module 230 is configured to review basic parameter information in the input electronic form according to preset format requirement information, and determine whether the basic parameter information and the format requirement information are in accordance;
an import information module 240, wherein the import information module 240 is configured to import the basic parameter information into the MATLAB workspace;
a flight trajectory calculation module 250, wherein the flight trajectory calculation module 250 is used for calculating the flight trajectory of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system so as to obtain a calculation result of the flight trajectory;
and the output display module 260 is used for assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display.
The invention discloses a visualization device applied to golf flight trajectories, which acquires basic parameter information through a basic parameter information acquisition module 210. The information input module 220 inputs the ball mass information, the maximum cross-sectional area information of the ball, the ball diameter information, the ball volume information, the ball rotation speed information, the ball takeoff angle information, the club mass information, the club hitting instantaneous speed information, the coefficient of restitution information, the air density information, the gravitational acceleration information, and the club head speed information of the acquired basic parameter information into the spreadsheet. The information determining module 230 examines the basic parameter information in the input electronic form according to the preset format requirement information to determine whether the basic parameter information and the format requirement information are in accordance. If the basic parameter information and the format requirement information are in agreement, the import information module 240 imports the basic parameter information into the MATLAB workspace. The flight trajectory calculation module 250 calculates the flight trajectory of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain the calculation result of the flight trajectory. And the output display module 260 assigns the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display. And then the simulated flight trajectory of the golf ball is displayed to the client through a dialog box of the visual interface module, so that the result of the calculation and output of the flight trajectory of the golf ball is concise and clear, and the simulation and output of the flight trajectory of the golf ball are realized. Therefore, the technical effects that the flight trajectory of the golf ball can be accurately simulated and visualized display of the flight trajectory of the golf ball is realized are achieved.
Based on the same inventive concept, the application provides an electronic device applied to visualization of a flight trajectory of a golf ball corresponding to the first embodiment, which is described in detail in the third embodiment.
EXAMPLE III
Fig. 3 is a block diagram of an electronic device for visualizing a flight trajectory of a golf ball according to an embodiment of the present invention, as shown in fig. 3. The third embodiment of the present invention provides an electronic device for visualizing a flight trajectory of a golf ball, comprising a memory 310, a processor 320 and a computer program 411311 stored in the memory 310 and executable on the processor 320, wherein the processor 320 implements the following steps when executing the program:
acquiring basic parameter information, wherein the basic parameter information comprises ball mass information, ball maximum sectional area information, ball diameter information, ball volume information, ball rotating speed information, ball takeoff angle information, ball arm mass information, ball arm hitting instantaneous speed information, coefficient of restitution information, air density information, gravity acceleration information and head speed information;
inputting the acquired basic parameter information into a spreadsheet;
according to preset format requirement information, checking basic parameter information in the input electronic form, and judging whether the basic parameter information and the format requirement information are in accordance;
if so, importing the basic parameter information into an MATLAB working space;
calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain a calculation result of the flight path;
and assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display.
The invention discloses visual electronic equipment applied to a golf flight track, which inputs ball body mass information, ball body maximum sectional area information, ball body diameter information, ball body volume information, ball body rotating speed information, ball body takeoff angle information, ball rod mass information, ball rod hitting instantaneous speed information, coefficient of restitution information, air density information, gravity acceleration information and rod head speed information in acquired basic parameter information into an electronic table. And then according to the preset format requirement information, checking the basic parameter information in the input electronic form to judge whether the basic parameter information and the format requirement information are in accordance. And if the basic parameter information is consistent with the format requirement information, importing the basic parameter information into the MATLAB working space. And then calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain the calculation result of the flight path. And meanwhile, assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display. And then the simulated flight trajectory of the golf ball is displayed to the client through a dialog box of the visual interface module, so that the result of the calculation and output of the flight trajectory of the golf ball is concise and clear, and the simulation and output of the flight trajectory of the golf ball are realized. Therefore, the technical effects that the flight trajectory of the golf ball can be accurately simulated and visualized display of the flight trajectory of the golf ball is realized are achieved.
Based on the same inventive concept, the present application provides a computer-readable storage medium 400 corresponding to the first embodiment, which is described in detail in the fourth embodiment, for visualization of a flight trajectory of a golf ball.
Example four
As shown in fig. 4, fig. 4 is a block diagram of a computer-readable storage medium 400 applied to visualization of a flight trajectory of a golf ball according to an embodiment of the present invention. A fourth embodiment of the present invention provides a computer-readable storage medium 400 for visualization of a flight trajectory of a golf ball, having a computer program 411 stored thereon, which when executed by processor 320, performs the following steps:
acquiring basic parameter information, wherein the basic parameter information comprises ball mass information, ball maximum sectional area information, ball diameter information, ball volume information, ball rotating speed information, ball takeoff angle information, ball arm mass information, ball arm hitting instantaneous speed information, coefficient of restitution information, air density information, gravity acceleration information and head speed information;
inputting the acquired basic parameter information into a spreadsheet;
according to preset format requirement information, checking basic parameter information in the input electronic form, and judging whether the basic parameter information and the format requirement information are in accordance;
if so, importing the basic parameter information into an MATLAB working space;
calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain a calculation result of the flight path;
and assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display.
The invention discloses a computer-readable storage medium 400 applied to a golf ball flight trajectory, which is characterized in that ball mass information, ball maximum sectional area information, ball diameter information, ball volume information, ball rotating speed information, ball takeoff angle information, ball bar mass information, ball hitting instantaneous speed information, coefficient of restitution information, air density information, gravity acceleration information and head speed information in acquired basic parameter information are input into a spreadsheet. And then according to the preset format requirement information, checking the basic parameter information in the input electronic form to judge whether the basic parameter information and the format requirement information are in accordance. And if the basic parameter information is consistent with the format requirement information, importing the basic parameter information into the MATLAB working space. And then calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain the calculation result of the flight path. And meanwhile, assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display. And then the simulated flight trajectory of the golf ball is displayed to the client through a dialog box of the visual interface module, so that the result of the calculation and output of the flight trajectory of the golf ball is concise and clear, and the simulation and output of the flight trajectory of the golf ball are realized. Therefore, the technical effects that the flight trajectory of the golf ball can be accurately simulated and visualized display of the flight trajectory of the golf ball is realized are achieved.
In the implementation process, when the computer program 411 is executed by a processor, any one of the first embodiment may be implemented.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program 411 products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (2)
1. A visualization method applied to a flight trajectory of a golf ball is characterized by comprising the following steps:
acquiring basic parameter information, wherein the basic parameter information comprises ball mass information, ball maximum sectional area information, ball diameter information, ball volume information, ball rotating speed information, ball takeoff angle information, ball arm mass information, ball arm hitting instantaneous speed information, coefficient of restitution information, air density information, gravity acceleration information and head speed information;
inputting the acquired basic parameter information into a spreadsheet;
according to preset format requirement information, checking basic parameter information in the input electronic form, and judging whether the basic parameter information and the format requirement information are in accordance;
if so, importing the basic parameter information into an MATLAB working space;
calculating the flight path of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain a calculation result of the flight path;
assigning the calculation result of the flight trajectory to a trajectory parameter dialog box of a visual interface for visual display;
the inputting the acquired basic parameter information into a spreadsheet comprises:
compiling the ball mass information, the ball maximum cross-sectional area information, the ball diameter information, the ball volume information, the ball rotational speed information, the ball takeoff angle information, the club mass information, the club hitting instantaneous speed information, the coefficient of restitution information, the air density information, the gravitational acceleration information, and the club head speed information into an Excel table;
the checking the basic parameter information in the input electronic form according to the preset format requirement information, and judging whether the basic parameter information and the format requirement information are in accordance with each other comprises the following steps:
the preset format requirement information at least comprises data format information;
comparing the basic parameter information in the input electronic form with the data format information, and judging whether the basic parameter information in the input electronic form is matched with the data format information;
if the matching is successful, the matching is satisfied;
if not, changing the basic parameter information in the input electronic form so as to enable the basic parameter information in the input electronic form to be matched with the data format information;
the checking the basic parameter information in the input electronic form according to the preset format requirement information, and judging whether the basic parameter information and the format requirement information are in accordance with each other comprises the following steps:
the preset format requirement information also comprises data integrity information;
comparing the basic parameter information in the input electronic form with the data integrity information, and judging whether the basic parameter information in the input electronic form is matched with the data integrity information;
if the matching is successful, the matching is satisfied;
if not, changing the basic parameter information in the input electronic form so as to enable the basic parameter information in the input electronic form to be matched with the data integrity information;
the calculating the flight trajectory of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain the calculation result of the flight trajectory comprises the following steps:
the three-dimensional coordinate system comprises a first coordinate axis, a second coordinate axis and a third coordinate axis;
calculating expressions of the instantaneous takeoff speed of the golf ball and the instantaneous hitting speed of the golf club according to a momentum conservation law;
correcting the takeoff instantaneous speed of the golf ball according to the recovery coefficient information;
the calculating the flight trajectory of the golf ball according to the basic parameter information imported into the MATLAB working space and a pre-established three-dimensional coordinate system to obtain the calculation result of the flight trajectory comprises the following steps:
performing vector decomposition on the first coordinate axis, the second coordinate axis and the third coordinate axis according to the ball mass information, the ball maximum sectional area information, the ball diameter information, the ball volume information, the ball rotating speed information, the ball takeoff angle information, the ball arm mass information, the ball arm hitting instantaneous speed information, the air density information, the gravity acceleration information and the club head speed information, and calculating the acceleration on the first coordinate axis, the second coordinate axis and the third coordinate axis;
calculating the angular velocity of the golf ball according to the ball rotation speed information to obtain an expression of the angular velocity and the takeoff instantaneous velocity;
correcting a drag coefficient of the golf ball and a lift coefficient of the golf ball according to a function containing a spin ratio, the spin ratio being an expression for the angular velocity and the ball takeoff instantaneous velocity;
calling a calculation function built in MATLAB according to the step length and the constraint condition of a preset order, and solving a target function through a finite difference method so as to calculate the flight path of the golf ball and obtain the calculation result of the flight path;
the constraint conditions comprise the club head speed information, the sphere rotating speed information and the sphere takeoff angle information; the objective function includes a distance of the golf ball on the first coordinate axis, a distance on the second coordinate axis, and a distance on the third coordinate axis.
2. The method as claimed in claim 1, wherein the step of assigning the calculated flying trajectory to a trajectory parameter dialog box of a visual interface for visual display further comprises:
and storing the calculation result, and displaying a warning dialog box in the visual interface.
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