WO2018027692A1

WO2018027692A1 - Tennis-ball error-rate counting method and system

Info

Publication number: WO2018027692A1
Application number: PCT/CN2016/094436
Authority: WO
Inventors: 张阳
Original assignee: 张阳
Priority date: 2016-08-10
Filing date: 2016-08-10
Publication date: 2018-02-15

Abstract

Provided are a tennis-ball error-rate counting method and system, said method comprising the following steps: obtaining a path of motion of a tennis ball (101); according to said path of motion and a run time, calculating the error rate of the tennis ball (102); displaying said error rate (103). The error-rate counting method and system have the advantage of accurate error rates.

Description

Statistical method and system for tennis turnover rate

Technical field

The invention relates to the field of sports, and in particular to a statistical method and system for a tennis turnover rate.

Background technique

Tennis is a beautiful and intense sport. The origin and development of tennis can be summarized in four sentences: birth in France, birth in the UK, popularization and climax in the United States, now prevailing in the world, known as the world The second largest ball sport. The current tennis game cannot effectively calculate the turnover rate (ball speed) during the game.

technical problem

A statistical method for tennis ball turnover rate is provided, which solves the shortcoming that the prior art cannot effectively calculate the ball speed.

Technical solution

In one aspect, a statistical method for tennis turnover rate is provided, the method comprising the steps of:

Get the trajectory of tennis;

Calculating the error rate of the tennis ball based on the motion trajectory and the running time;

This error rate is displayed.

Optionally, the method further includes:

The acquired motion track is played animated.

Optionally, the method further includes:

Draw a plot of the error rate.

In a second aspect, a statistical system for tennis turnover rate is provided, the system comprising:

An acquisition unit for acquiring a movement track of the tennis ball;

a calculating unit, configured to calculate a turnover rate of the tennis ball according to the motion track and the running time;

A display unit for displaying the error rate.

Optionally, the system further includes:

A playing unit for playing the acquired motion track by animation.

Optionally, the system further includes:

A drawing unit for plotting the error rate.

Beneficial effect

The technical solution provided by the specific embodiment of the present invention acquires the motion trajectory of the tennis ball, calculates the error rate of the tennis ball according to the motion trajectory and the running time, and displays the error rate, so that it has the advantage of effectively calculating the ball speed.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a flow chart of a statistical method for calculating a tennis turnover rate according to the present invention;

FIG. 2 is a structural diagram of a statistical system for tennis turnover rate according to the present invention.

Embodiments of the invention

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIG. 1 , FIG. 1 is a flowchart of a statistical method for a tennis failure rate according to a first preferred embodiment of the present invention. The method is implemented by a server. The method is as shown in FIG. 1 and includes the following steps:

Step S101: Acquire a motion track of the tennis ball;

Step S102, calculating a turnover rate of the tennis ball according to the motion track and the running time;

In step S103, the error rate is displayed.

Optionally, after the step S103, the foregoing method may further include:

The acquired motion track is played animated.

Optionally, after the step S103, the foregoing method may further include:

Draw a plot of the error rate.

Referring to FIG. 2, FIG. 2 is a statistical system for a tennis turnover rate according to a second preferred embodiment of the present invention. The system includes:

The acquiring unit 201 is configured to acquire a motion track of the tennis ball;

The calculating unit 202 is configured to calculate a failure rate of the tennis ball according to the motion track and the running time;

The display unit 203 is configured to display the error rate.

Optionally, the above system may further include:

The playing unit 204 is configured to play the acquired motion track by animation.

Optionally, the above system may further include:

The drawing unit 205 is configured to draw a schematic diagram of the error rate.

It should be noted that, for the foregoing method embodiments or embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the present invention is not subject to the described action sequence. Limitations, as certain steps may be performed in other sequences or concurrently in accordance with the present invention. In the following, those skilled in the art should also understand that the embodiments or examples described in the specification are preferred embodiments, and the actions and units involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

The steps in the method of the embodiment of the present invention may be sequentially adjusted, merged, and deleted according to actual needs.

The units in the apparatus of the embodiment of the present invention may be combined, divided, and deleted according to actual needs. Those skilled in the art can combine or combine the different embodiments described in the specification and the features of the different embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented in hardware, firmware implementation, or a combination thereof. When implemented in software, the functions described above may be stored in or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. Taking this as an example, but not limited to: the computer readable medium may include random access memory (Random) Access Memory, RAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), Compact Disc Read-Only Memory, CD-ROM, or other optical disc storage, magnetic storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Also. Any connection may suitably be a computer readable medium. For example, if the software is using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (Digital Subscriber Line, DSL) or wireless technology such as infrared, radio and microwave transmission from a website, server or other remote source, then coaxial cable, fiber optic cable, twisted pair, DSL or such as infrared, wireless and microwave Wireless technology is included in the fixing of the associated medium. As used in the present invention, a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

In summary, the above description is only a preferred embodiment of the technical solution of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A statistical method for tennis turnover rate, characterized in that the method comprises the following steps:

Get the trajectory of tennis;

Calculating the error rate of the tennis ball based on the motion trajectory and the running time;

This error rate is displayed.
The method of claim 1 further comprising:

The acquired motion track is played animated.
The method of claim 1 further comprising:

Draw a plot of the error rate.
A statistical system for tennis turnover rate, characterized in that the system comprises:

An acquisition unit for acquiring a movement track of the tennis ball;

a calculating unit, configured to calculate a turnover rate of the tennis ball according to the motion track and the running time;

A display unit for displaying the error rate.
The system of claim 4, wherein the system further comprises:

A playing unit for playing the acquired motion track by animation.
The system of claim 4, wherein the system further comprises:

A drawing unit for plotting the error rate.