3D micro-inertia sensing method and system

Abstract

The invention provides a 3D micro-inertia sensing method and system capable of sensing the micro-inertia sensing module and he horizontal plane angle change to control the cursor movement of a display and sensing the hand swing to control the flip over of the display; wherein a micro-inertia sensor senses the gravity change of the micro-inertia sensing module due to incline of the micro-inertia sensing module in the space and a wireless sender sends the signal to a micro-processor and the micro-processor makes the signal pass through the filtering and the display cursor movement is controlled after performing the cross intercomparison between the inclined angle and the cursor relative position and the two signal numbers of the cursor control circuits. The effect of another axle shake is reduced based on the variant of the signal of each axle of the micro-inertial sensing module. The effect of the centrifugal force on the Y axle is eliminated using the centrifugal force difference sensed by the two Y axle accelerometers.

Description

[0001] This application is a divisional application with the application date of December 25, 2006, application number 200610161770.X, and the title of the invention "3D micro-inertial sensing method and system". Technical field [0002] The present invention relates to a 3D micro-inertial sensing method and system, in particular to a method for controlling the movement of the display cursor by detecting the angle change between the micro-inertial sensing module and the horizontal plane, which can precisely control the cursor to move to the desired position. It needs a position, and its operation method is simple. It can also use the hand swing to control the display to turn pages. It is not only ergonomic, but also can achieve the effect of continuous page turning with specific actions. It is suitable for cursor controller applications and manufacturing related fields. Background technique [0003] There are many types of existing cursor control devices. For example, the cursors ...

AI Technical Summary

Problems solved by technology

[0005] For patents, see figure 1 As shown in US Patent No. 5874941 "Presentation supporting device", the said case discloses a presentation device 2, which generates an acceleration signal by virtue of an X-axis acceleration sensor 1A and a Y-axis acceleration sensor 1B sensing the acceleration changes generated by the tilt of the device , and then processed by the acceleration signal processors 10A, 10B to generate cursor movement signals, so as to achieve the purpose of controlling the cursor, for example, when the user tilts the device forward to a certain angle, the cursor can be controlled to start moving, ideally Next, when the cursor moves to the desired position, the user should return the device to the initial angle to stop the cursor from moving. However, due to the influence of gravity acceleration in actual applications, the cursor continues to move even though the device has been reset. The cursor It cannot be accurately positioned at the desired position and the stability is low. The user must waste a lot of time and repeat corrections to control the cursor to stay at the exact position. Moreover, when the device is tilted larger, the acceleration value is higher, and the cursor moving speed is also slower. The subsequent acceleration makes it difficult for the user to control stably; moreover, the described device cannot achieve the continuous page turning function

[0006] Another example figure 2 As shown, the Taiwan Province of China Patent Application No. 90221010 "Gravity Mouse", which uses a gravity detection IC to measure the potential energy of an object, converts the potential energy into a signal generated by kinetic energy, and transmits it to the microprocessor IC for calculation. The microprocessor IC can detect the time when the gravity detection IC moves, and receive the acceleration value generated by the gravity detection IC movement, calculate and convert it into an actual movement unit, and transmit it to the computer host to control the direction of the display cursor; The main calculation means of the case is that when the mouse moves in space, the accelerometers with two or more axes are used to carry out integral calculations to control the movement of the cursor. However, when the translation is used, the integral of the acceleration will produce cumulative errors that cannot be eliminated, resulting in distortion of the cursor positioning; Or, the described mouse cannot achieve continuous page turning function

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