A sensing method and device for spatial absolute displacement

Abstract

The embodiment of the invention discloses a space absolute displacement sensing method and a space absolute displacement sensing device. By virtue of the method and the device, a cursor on a television, remotely controlled by an air mouse, moves in correspondingly absolute direction of an absolute angle at a displacement speed mapped to the absolute angle, so that the technical problems of slow response speed and big displacement error of the air mouse, caused by the scheme that the relative displacement of the air mouse is judged only by a sensor, are solved. The method provided by the embodiment of the invention comprises the following steps: capturing the horizontal plane angle of a moving trajectory; calculating a vertical plane angle in light of a preset algorithm according to gravitational acceleration; calculating a horizontal plane angular speed and a vertical plane angular speed in light of a kalman filtering algorithm to obtain an absolute angle; determining an absolute displacement speed according to the absolute angle, wherein a mapping relationship is established between the absolute angle and the absolute displacement speed; according to the absolute angle and the absolute displacement speed, controlling the cursor on a screen to move in correspondingly absolute direction.

Description

technical field [0001] The invention relates to the field of positioning technology, in particular to a sensing method and device for spatial absolute displacement. Background technique [0002] The air mouse is an input device that operates the screen cursor like a traditional mouse, but it does not need to be placed on any flat surface and can be used directly by shaking it in the air. At present, the air mouse remote control technology is not only used in computers, but also in the field of TV remote control. attention. [0003] The existing air mouse remote control uses sensors to judge the relative displacement of the air mouse, and calculates the relative movement of the mouse through a large number of calculations, resulting in the problem of slow response of the air mouse. Moreover, the operating habit of the TV air mouse remote control is different from that of a mouse. The operation of the air mouse remote control cannot rely on a stable plane to measure the relat...

AI Technical Summary

Problems solved by technology

[0003] The existing air mouse remote control uses sensors to judge the relative displacement of the air mouse, and calculates the relative movement of the mouse through a large number of calculations, resulting in the problem of slow response of the air mouse

Moreover, the operating habit of the TV air mouse remote control is different from that of the mouse. The operation of the air mouse remote control cannot rely on a stable plane to measure the relative displacement, resulting in a large error in movement

[0004] In order to solve the technical problems of slow response and large movement error of the air mouse caused by the above-mentioned solution of only using the sensor to judge the relative displacement of the air mouse, those skilled in the art are working day and night on this.

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