WO2017121027A1

WO2017121027A1 - Method and system for generating corresponding sound effect according to motion state of basketball

Info

Publication number: WO2017121027A1
Application number: PCT/CN2016/076607
Authority: WO
Inventors: 吴建成
Original assignee: 简极科技有限公司
Priority date: 2016-01-14
Filing date: 2016-03-17
Publication date: 2017-07-20
Also published as: TW201725579A; CN106610300A; TWI576821B

Abstract

Disclosed is a method for generating a corresponding sound effect according to a motion state of a basketball. The method comprises detecting and obtaining a magnitude and a direction of an acceleration of a basketball and a motion trail of the basketball; determining a motion of the basketball; and triggering a sound effect corresponding to different motions on the basis of a rule. A system for generating a corresponding sound effect on the basis of a motion state of a basketball is also disclosed. The system comprises a basketball having an accelerometer and a gyroscope disposed therein, and an intelligent terminal for receiving data detected and computed by the accelerometer and the gyroscope. The basketball detects and computes a motion parameter using the method for generating the different sound effect on the basis of the motion state of the basketball. The intelligent terminal uses the method for generating the different sound effect on the basis of the motion state of the basketball to determine a motion of the basketball on the basis of the received data, and triggers a sound effect. The invention is able to detect and compute an ongoing motion of the basketball and assign different sound effects to different motions to make a basketball game more interactive and interesting. The invention can be used in music creation as well.

Description

Method and system for generating corresponding sound effects according to basketball movement state

Technical field

The present invention relates to the field of motion detection, and more particularly to a method for generating different sound effects according to the state of motion of a basketball, and a system for generating different sound effects according to the state of motion of the basketball.

Background technique

In the prior art, a ball that can emit music or sound, usually generates a predicted sound or music according to the trigger of the vibration sensor, and each time the sound or music is triggered, it is simply played according to a preset rule, or Random play is not directly related to the motion state of the ball. For example, playing home music, the film combines sound and action, but the picture is taken first and then dubbed, and the sports project is different from the film art. Strong.

Summary of the invention

The object of the present invention is to overcome the deficiencies of the prior art, to provide a method for generating different sound effects according to the state of motion of a basketball with high interactivity and playability, and a system for generating different sound effects according to the state of motion of the basketball.

The technical solution of the present invention is as follows:

A method for generating different sound effects according to the state of motion of the basketball, detecting the magnitude and direction of the acceleration of the basketball, the trajectory of the basketball, determining the sports items of the basketball, and triggering the corresponding sound effects according to the rules.

Preferably, each sport item is set with different parameter levels, and corresponding to different sound effects in the preset rules; detecting motion parameters of the basketball when performing different sports items, and then determining the level of the detected motion parameters, triggering Different sound effects.

Preferably, when the sport item is determined to be a dribble, the motion parameters obtained by the detection include the magnitude and direction of the initial force, the bounce time of the basketball, the rotation axis before and after the bounce, and the dribble frequency.

Preferably, different initial force magnitudes correspond to different force levels, different dribbling frequencies correspond to different speed grades, and different combinations of force levels and different speed grades correspond to different sound effects.

Preferably, the accelerometer calculates the magnitude and direction of the initial force, and the accelerometer detects the bounce time of the basketball. The gyroscope calculates the rotation axis before and after the bounce, and calculates the dribble frequency by time stamp.

Preferably, when the sport item is determined to be a shot or a pass, the motion parameters obtained by the detection include the magnitude and direction of the initial force, and the axis of rotation during the flight of the basketball.

Preferably, the accelerometer calculates the magnitude of the initial force. If the initial force is greater than the preset shooting threshold or the pass threshold, the time stamp is recorded, and the time and rotation axis of the fixed duration are recorded by the accelerometer and the gyroscope, respectively. And the rotation speed of the basketball is obtained by using the rotation axis change during the flight time.

Preferably, the flight speed of the basketball is calculated, and different flight speeds correspond to different speed grades, and different speeds correspond to different speed grades, and the combination of different speed grades and different speed grades corresponds to different sound effects.

Preferably, in the acceleration detected by the accelerometer, if the X-axis component is greater than a preset X-axis threshold, the Y-axis component is greater than a preset Y-axis threshold, and the Z-axis component is greater than 1 Gravity Acceleration, less than a preset Z When the axis threshold is restored, the motion item is judged to be a ball after the coordinate system is restored by the rotation matrix.

Preferably, in the acceleration detected by the accelerometer, if the X-axis component is smaller than the preset X-axis threshold, the Y-axis component is smaller than the preset Y-axis threshold, and the Z-axis component is greater than 1 gravitational acceleration, less than the preset Z The axis threshold value, after the coordinate system is restored by the rotation matrix, the change of the rotation axis detected by the gyroscope is less than the preset change threshold, and when the gyroscope calculates that the sharp rotation speed is greater than the preset speed threshold, the motion item is Judged to refer to the ball.

A system for generating different sound effects according to the state of motion of a basketball, including a basketball with a built-in accelerometer and a gyroscope, and an intelligent terminal that receives data obtained by accelerometer and gyroscope detection and calculation, and detects motion parameters according to the state of motion of the basketball. Calculate, judge the basketball sports item based on the received data, and trigger the sound effect.

The beneficial effects of the present invention are as follows:

The method and system for generating different sound effects according to the motion state of the basketball according to the present invention can detect and calculate the ongoing sports items of the basketball, such as dribbling, shooting, passing, rounding, pointing the ball, etc., and different The sports program is configured with different sound effects. And each sport item is set to a different level, and different levels are also configured with different sound effects. The implementation of the present invention increases the interaction and interest of basketball and submits playability. And the invention can be used for music creation, and the created music can experience the mood state of the present creator.

DRAWINGS

Figure 1 is a schematic diagram of the effect of the dribble touch;

Figure 2 is a schematic diagram of the sound effect of shooting or passing touch;

Figure 3 is a schematic diagram of the effect of sound around the ball;

Figure 4 is a schematic diagram showing the effect of the upper ball touch.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

The present invention provides a method and system for generating different sound effects according to the state of motion of a basketball in order to solve the single lack of mode in which the prior art basketball emits music or sound effects. The invention triggers different sound effects through different modes and sports levels of the basketball, not only increases the interaction and interest, but also indirectly reflects the current emotional state through the sound effect, and can be used for music creation.

The method for generating different sound effects according to the movement state of the basketball according to the present invention determines the magnitude and direction of the acceleration of the basketball and the movement track of the basketball, and determines the sports items of the basketball. According to the preset rules, different sports items trigger differently. Sound effects. In order to increase the diversity of sound effects and reflect the different levels of each project, the different parameter levels of each sports item also correspond to different sound effects in the preset rules; the motion parameters when detecting basketball for different sports items , determining the level of the detected motion parameter, triggering different sound effects.

The invention mainly provides the following sports items:

Dribble sound effect: Rhythm dribble mode, as shown in Figure 1, produces different sound effects for different levels of dribbling power and dribble frequency.

When the exercise item is judged to be a dribble, the motion parameters obtained by the detection include the magnitude and direction of the initial force, the bounce time of the basketball, the rotation axis before and after the bounce, and the dribble frequency. The accelerometer calculates the magnitude and direction of the initial force, and the accelerometer detects the bounce time of the basketball. The gyroscope calculates the rotation axis before and after the bounce, and calculates the dribble frequency by time stamp.

Different initial force levels correspond to different force levels, and different dribbling frequencies correspond to different speed levels, and different combinations of force levels and different speed levels correspond to different sound effects. In this embodiment, the initial force magnitude is quantized to obtain five force levels, and the dribble frequency is quantized to obtain five speed grades.

Shooting or passing sound: As shown in Figure 2, when the basketball is detected to shoot and pass, different sound effects are produced.

The condition for detecting a user's shooting or passing is that the user holds the basketball and has an initial force to advance the basketball in the air.

When the exercise item is judged to be a shot or a pass, the motion parameters obtained by the detection include the magnitude and direction of the initial force, and the axis of rotation during the flight of the basketball.

The initial force is calculated by the accelerometer. If the initial force is greater than the preset shooting threshold or the pass threshold, the time stamp is recorded, and the time and rotation axis of the fixed time period are recorded by the accelerometer and the gyroscope, respectively, and utilized. The rotation axis of the flight time changes the speed of the basketball. Calculate the flight speed of the basketball. Different flight speeds correspond to different speed grades. Different speeds correspond to different speed grades. The combination of different speed grades and different speed grades corresponds to different sound effects.

Special sound effects, including the ball as shown in Figure 3, the finger-turning ball as shown in Figure 4.

Wrap ball: In the acceleration detected by the accelerometer, if the X-axis component is greater than the preset X-axis threshold, the Y-axis component is greater than the preset Y-axis threshold, and the Z-axis component is greater than 1 gravitational acceleration, less than the preset Z At the time of the shaft threshold, the sport item is judged to be a ball.

Refers to the upper ball: In the acceleration detected by the accelerometer, if the X-axis component is smaller than the preset X-axis threshold, the Y-axis component is smaller than the preset Y-axis threshold, and the Z-axis component is greater than 1 gravitational acceleration, less than the preset. The Z-axis threshold, the change of the rotation axis detected by the gyroscope is less than the preset change threshold, and when the gyroscope calculates that the sharp rotation speed is greater than the preset speed threshold, the sport item is judged to be the up-turn ball. .

The present invention also provides a system for generating different sound effects according to the state of motion of a basketball for implementing the method of generating different sound effects according to the state of motion of the basketball. The system of the present invention includes a smart basketball and APP display training system provided with an inertial measurement unit IMU. The inertial measurement unit IMU includes an accelerometer and a three-axis gyroscope, and the APP is installed in the smart terminal for receiving data obtained by the accelerometer and the gyroscope detection and calculation. The basketball performs the detection and calculation of the motion parameters according to the method for generating different sound effects according to the motion state of the basketball, and the smart terminal determines the sports items of the basketball according to the received data by the method for generating different sound effects according to the motion state of the basketball. And the sound effect is triggered. Users can use smart basketball to perform different basketball moves, generate different sports, and then create music.

The above-described embodiments are merely illustrative of the invention and are not intended to limit the invention. Variations, modifications, and the like of the above-described embodiments are intended to fall within the scope of the appended claims.

Industrial applicability

The method and system for generating different sound effects according to the motion state of the basketball according to the present invention can detect and calculate the ongoing sports items of the basketball, such as dribbling, shooting, passing, rounding, pointing the ball, etc., and different The sports program is equipped with different sound effects, increases the interaction and fun of basketball, submits playability, and has good industrial applicability.

Claims

A method for generating a corresponding sound effect according to a state of motion of a basketball, characterized in that the magnitude and direction of the acceleration of the basketball are obtained, the trajectory of the basketball is determined, and the sports item of the basketball is judged, and according to the rules, different sports items trigger the corresponding sound effects.
The method for generating a corresponding sound effect according to the motion state of the basketball according to claim 1, wherein the parameter level of the sports item further corresponds to different sound effects in the rule; and the basketball is tested for different sports items. The motion parameter of the time determines the level of the detected motion parameter and triggers a different sound effect.
The method for generating a corresponding sound effect according to the motion state of the basketball according to claim 1 or 2, wherein when the motion item is judged to be a dribble, the motion parameter obtained by the detection includes the magnitude and direction of the initial force, The bounce time of the basketball, the axis of rotation before and after the bounce, and the dribble frequency.
The method for generating different sound effects according to the motion state of the basketball according to claim 3, wherein different initial force magnitudes correspond to different powertrain levels, different dribbling frequencies correspond to different speed grades, and different force levels are different. The combination of speed grades corresponds to different sound effects.
A method for generating different sound effects according to a state of motion of a basketball according to claim 3, wherein the magnitude and direction of the initial force are calculated by an accelerometer, and the bounce time of the basketball is detected by the accelerometer. The gyroscope calculates the rotation axis before and after the bounce, and calculates the dribble frequency by time stamp.
The method according to claim 1 or 2, wherein the motion parameter obtained by the detection includes the initial force and Direction, the axis of rotation during basketball flight.
The method according to claim 6, wherein the initial force is calculated by an accelerometer, and if the initial force is greater than a preset shooting threshold or a pass threshold, the time stamp is recorded. And the accelerometer and the gyroscope respectively record the flight time and the rotation axis of a fixed duration, and the rotation speed of the basketball is obtained by using the rotation axis change during the flight time.
The method according to claim 7, wherein the flying speed of the basketball is calculated, and different flying speeds correspond to different speed levels, different speeds correspond to different speed levels, different speeds. The combination of level and different speed levels corresponds to different sound effects.
The method for generating different sound effects according to the motion state of a basketball according to claim 1 or 2, wherein, in the acceleration detected by the accelerometer, if the X-axis component is greater than a preset X-axis threshold, the Y-axis component is greater than the pre- When the Y-axis threshold is set, when the Z-axis component is greater than 1 gravitational acceleration and less than the preset Z-axis threshold, the motion item is determined to be a ball.
A method for generating different sound effects according to a motion state of a basketball according to claim 1 or 2, wherein, in the acceleration detected by the accelerometer, if the X-axis component is smaller than a preset X-axis threshold, the Y-axis component is smaller than the pre- Set the Y-axis threshold, the Z-axis component is greater than 1 gravitational acceleration, less than the preset Z-axis threshold. After the coordinate system is restored by the rotation matrix, the change of the rotation axis detected by the gyroscope is less than the preset change threshold. When the gyroscope calculates that the sharp rotation speed is greater than the preset speed threshold, the sport item is judged to be the upper ball.
A system for generating different sound effects according to the state of motion of a basketball, characterized in that it includes a basketball with a built-in accelerometer and a gyroscope, a smart terminal that receives accelerometers and gyroscopes to detect and calculate data obtained, and the basketball passes claims 1 to 10. The method according to any one of the preceding claims, wherein the smart terminal detects the motion item of the basketball based on the received data and performs the sound effect triggering by the method according to any one of claims 1 to 10.