Method and device for measuring speed of moving device
First Claim
1. A method for measuring a speed of a sports device, comprising:
- acquiring, by a sensor disposed at a bottom of the sports device, movement data of the sports device during a process of tracking the sports device;
transmitting the movement data wirelessly to a terminal;
calculating, by the terminal, a linear speed and a tangential speed of rotational movement of the sports device based on accelerations of three axes in the movement data; and
combining, by the terminal, the linear speed and the tangential speed of the rotational movement to obtain a movement speed of the sports device,wherein the accelerations of three axes comprises an acceleration of Z axis, an acceleration of X axis, and an acceleration of Y axis, and the Z axis is parallel to a length direction of the sports device, and the X axis and the Y axis are perpendicular to the Z axis,wherein the linear speed is obtained from the acceleration of X axis and the acceleration of Y axis, and the tangential speed of the rotational movement is obtained from the acceleration of Z axis, andwherein the linear speed and the tangential speed of the rotational movement is combined to obtain the movement speed of the sports device by;
v=nv1+mvn where v denotes the movement speed of the sports device, V1 denotes the linear speed, Vn denotes the tangential speed of the rotational movement, n and m respectively denote a weight, and n+m=1.
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Accused Products
Abstract
The present disclosure relates to a method for measuring a speed of a sports device. The method includes: acquiring movement data of the sports device during a process of tracking the sports device, the movement data being collected by a sensor disposed at a bottom of the sports device; calculating a linear speed and a rotational speed of the sports device based on accelerations of three axes in the movement data; and combining the linear speed and the rotational speed to obtain a movement speed of the sports device. In addition, the present disclosure also provides an apparatus for measuring a speed of a sports device, which corresponds to the above method. The method and the apparatus for measuring a speed of a sports device can improve the credibility of the speed measurement of the sports device.
4 Citations
6 Claims
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1. A method for measuring a speed of a sports device, comprising:
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acquiring, by a sensor disposed at a bottom of the sports device, movement data of the sports device during a process of tracking the sports device; transmitting the movement data wirelessly to a terminal; calculating, by the terminal, a linear speed and a tangential speed of rotational movement of the sports device based on accelerations of three axes in the movement data; and combining, by the terminal, the linear speed and the tangential speed of the rotational movement to obtain a movement speed of the sports device, wherein the accelerations of three axes comprises an acceleration of Z axis, an acceleration of X axis, and an acceleration of Y axis, and the Z axis is parallel to a length direction of the sports device, and the X axis and the Y axis are perpendicular to the Z axis, wherein the linear speed is obtained from the acceleration of X axis and the acceleration of Y axis, and the tangential speed of the rotational movement is obtained from the acceleration of Z axis, and wherein the linear speed and the tangential speed of the rotational movement is combined to obtain the movement speed of the sports device by;
v=nv1+mvnwhere v denotes the movement speed of the sports device, V1 denotes the linear speed, Vn denotes the tangential speed of the rotational movement, n and m respectively denote a weight, and n+m=1. - View Dependent Claims (2)
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3. A system for measuring a speed of a sports device, comprising:
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a sensor disposed at a bottom of the sports device, and a terminal, comprising a processor, and a memory for storing instructions executable by the processor, wherein the processor is configured to carry out; acquiring, by the sensor, movement data of the sports device during a process of tracking the sports device; transmitting the movement data wirelessly to the terminal; calculating, by the terminal, a linear speed and a tangential speed of rotational movement of the sports device based on accelerations of three axes in the movement data; and combining, by the terminal, the linear speed and the tangential speed of the rotational movement to obtain a movement speed of the sports device, wherein the accelerations of three axes comprises an acceleration of Z axis, an acceleration of X axis, and an acceleration of Y axis, and the Z axis is parallel to a length direction of the sports device, and the X axis and the Y axis are perpendicular to the Z axis, wherein the linear speed is obtained from the acceleration of X axis and the acceleration of Y axis, and the tangential speed of the rotational movement is obtained from the acceleration of Z axis, and wherein the linear speed and the tangential speed of the rotational movement is combined to obtain the movement speed of the sports device by;
v=nv1+mvnwhere v denotes the movement speed of the sports device, V1 denotes the linear speed, Vn denotes the tangential speed of the rotational movement, n and m respectively denote a weight, and n+m=1. - View Dependent Claims (4)
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5. A non-transitory computer-readable storage medium storing instructions, executable by a processor in a terminal, for performing a method for measuring a speed of a sports device, the method comprises:
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acquiring, by a sensor disposed at a bottom of the sports device, movement data of the sports device during a process of tracking the sports device; transmitting the movement data wirelessly to the terminal calculating, by the terminal, a linear speed and a tangential speed of rotational movement of the sports device based on accelerations of three axes in the movement data; and combining, by the terminal, the linear speed and the tangential speed of the rotational movement to obtain a movement speed of the sports device, wherein the accelerations of three axes comprises an acceleration of Z axis, an acceleration of X axis, and an acceleration of Y axis, and the Z axis is parallel to a length direction of the sports device, and the X axis and the Y axis are perpendicular to the Z axis, wherein the linear speed is obtained from the acceleration of X axis and the acceleration of Y axis, and the tangential speed of the rotational movement is obtained from the acceleration of Z axis, and wherein the linear speed and the tangential speed of the rotational movement is combined to obtain the movement speed of the sports device by;
v=nv1+mvnwhere v denotes the movement speed of the sports device, V1 denotes the linear speed, Vn denotes the tangential speed of the rotational movement, n and m respectively denote a weight, and n+m=1. - View Dependent Claims (6)
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Specification