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A method and device for simulating a laser pointer through a mobile terminal

A mobile terminal and laser pointer technology, applied in the field of data processing, can solve the problems of small use range, control mouse point error, and unstable performance, etc., and achieve the effect of convenient use, stable performance, and overcoming errors

Active Publication Date: 2021-04-06
FUJIAN TIANQUAN EDUCATION TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing physical laser pointer needs to be aimed at the PC screen when used, which is inconvenient to use and has a small range of use. In the air mouse solution using the gyroscope as the data collection source, although the mouse cursor can be controlled more accurately, due to the gyroscope Problems such as the algorithm and manufacturing process in the data calculation process of the instrument itself, there will be gradually accumulated data errors during use, which will lead to errors in controlling the mouse point, and the performance is not stable enough. Therefore, a calculation method with more stable performance is required and when used A device that can simulate the effect of a laser pointer without aiming at the PC screen

Method used

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  • A method and device for simulating a laser pointer through a mobile terminal
  • A method and device for simulating a laser pointer through a mobile terminal
  • A method and device for simulating a laser pointer through a mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A method for simulating a laser pointer through a mobile terminal, comprising steps:

[0073] S1. Receive the real-time data of the mobile terminal moving from the first position to the second position sensed by the gravity sensor on the mobile terminal, and obtain the rotation matrix of the mobile terminal according to the data;

[0074] Place the mobile terminal screen upwards and parallel to the horizontal plane, take the center of the mobile terminal as the origin of coordinates, move to the right along the direction of the width of the mobile terminal as the positive direction of the X' axis, and move outward along the direction of the length of the terminal The positive direction of the Y' axis is the positive direction of the Z' axis perpendicular to the terminal screen, and the three-dimensional Cartesian coordinate system X'Y'Z' is established;

[0075] receiving real-time data of the mobile terminal moving from the first position to the second position sensed ...

Embodiment 2

[0094] A device 1 for simulating a laser pointer through a mobile terminal, comprising a memory 2, a processor 3, and a computer program stored on the memory 2 and operable on the processor 3, and the processor 3 implements the following steps when executing the program :

[0095] S1. Receive the real-time data of the mobile terminal moving from the first position to the second position sensed by the gravity sensor on the mobile terminal, and obtain the rotation matrix of the mobile terminal according to the data;

[0096] Place the mobile terminal screen upwards and parallel to the horizontal plane, take the center of the mobile terminal as the origin of coordinates, move to the right along the direction of the width of the mobile terminal as the positive direction of the X' axis, and move outward along the direction of the length of the terminal The positive direction of the Y' axis is the positive direction of the Z' axis perpendicular to the terminal screen, and the three-...

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Abstract

A method and device for simulating a laser pointer through a mobile terminal provided by the present invention, obtain the rotation matrix of the mobile terminal according to the real-time data sensed by the gravity sensor on the mobile terminal, and obtain the real-time data sensed by the gyroscope sensor obtain the angular acceleration of the mobile terminal, obtain the angular velocity of the mobile terminal in the horizontal direction and the vertical direction according to the rotation matrix and the angular acceleration, and obtain the angular velocity of the mobile terminal in the horizontal direction and the vertical direction according to the angular velocity and the mobile terminal moving from the first position to the second position The time interval between the two positions can be used to obtain the relative displacement of the mobile terminal, and the control of the laser point can be realized only with the help of the mobile terminal, which is more convenient to use, and the displacement of the laser point at the PC end is controlled according to the relative displacement of the terminal, so when using There is no need to align the PC screen, and the current position of the terminal is determined according to the data sensed by the gravity sensor before using the data of the gyroscope sensor, which overcomes the error caused by only using the gyroscope sensor, and the performance is more stable.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a method and device for simulating a laser pointer through a mobile terminal. Background technique [0002] The existing physical laser pointer needs to be aimed at the PC screen when used, which is inconvenient to use and has a small range of use. In the air mouse solution using the gyroscope as the data collection source, although the mouse cursor can be controlled more accurately, due to the gyroscope Problems such as the algorithm and manufacturing process in the data calculation process of the instrument itself, there will be gradually accumulated data errors during use, which will lead to errors in controlling the mouse point, and the performance is not stable enough. Therefore, a calculation method with more stable performance is required and when used A device that can simulate the effect of a laser pointer without aiming at the PC screen. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/0354H04M1/72454
CPCG06F3/03545H04M2250/12H04M1/72454
Inventor 刘德建陈时涛曾少彬方振华郭玉湖
Owner FUJIAN TIANQUAN EDUCATION TECH LTD