A realization method of a low-power air mouse pen based on three-dimensional ultrasonic positioning

Abstract

The invention provides a three-dimensional ultrasonic positioning-based low-power consumption air mouse pen realization method, and belongs to the technical field of three-dimensional man-machine interaction. The method comprises the following steps of: triggering a key, and transmitting an ultrasonic and infrared signal by an air mouse pen; receiving the ultrasonic and infrared signal transmitted by the air mouse pen by an electronic whiteboard, obtaining positions of the air mouse pen by adoption of an ultrasonic three-dimensional high-precision wireless positioning technology, and forming a movement locus of the air mouse pen through a series of positions of the air mouse pen; converting the movement locus of the air mouse pen into a plane locus through coordinate conversion, converting the plane locus into a cursor locus on a screen by the electronic whiteboard, and controlling a cursor on the screen of the whiteboard by means of the movement of the air mouse pen; and triggering different keys, and sending key information in different infrared encoding manners, so as to realize different key functions of the air mouse pen. The method has the advantages of being large in control range, according with the man-machine interaction operation habits and being low in power consumption, and is suitable for the non-accurate control occasions such as book empty control and the like.

Description

technical field [0001] The invention relates to a realization method of an air mouse pen, in particular to a realization method of a low power consumption air mouse pen based on three-dimensional ultrasonic positioning, which can realize the mapping from the space trajectory of the air mouse pen to the plane trajectory, and conforms to the habit of human-computer interaction operation , which can be applied to the technical field of three-dimensional pen-type human-computer interaction. Background technique [0002] The mouse is a peripheral input device of a computer. The traditional mouse can be divided into mechanical mouse, optical mouse and laser mouse. The mechanical mouse generally includes a rolling ball, a roller and a grating signal sensor. When the mouse is dragged, the rolling ball is driven to rotate, and the rolling ball drives the roller to rotate. The photoelectric pulse signal generated by the grating signal sensor installed at the end of the roller is refle...

AI Technical Summary

Problems solved by technology

[0009] The invention provides a method for realizing a low-power air mouse pen based on three-dimensional ultrasonic positioning, which converts the three-dimensional motion track of the air mouse pen into a plane track through coordinate transformation, so as to solve the projection caused by the three-dimensional motion track when the air mouse is controlled The problem of overlapping tracks can realize the operation of the air mouse at any position and angle, and at the same time introduce different infrared coding methods to send key information, which greatly reduces the power consumption of the air mouse pen

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