Lifting wake-up method and device based on triaxial acceleration sensor

Abstract

The present invention provides a lifting wake-up method and device based on a three-axis acceleration sensor. The method includes: intercepting valid gesture data in the continuous three-axis acceleration data of a mobile device, and the continuous three-axis acceleration data is measured by using a three-axis acceleration sensor in real time. Acceleration data during the process of lifting the mobile device; based on the effective gesture data and the pre-stored template gesture data, through the iterative operation based on the dynamic time rounding DTW algorithm, the dynamic optimal path is regularized, and the corresponding optimal path is obtained. The optimal DTW distance between the effective gesture data and the template gesture data; by comparing the optimal DTW distance with the size of the first set threshold, judge the matching between the effective gesture data and the template gesture data, and compare the effective gesture data and the template gesture data When there is a match, wake up the mobile device. The invention can effectively simplify the wake-up algorithm of the mobile device, and improve the success recognition rate of gestures and the wake-up efficiency of the device.

Description

technical field [0001] The present invention relates to the field of computer technology, and more specifically, to a method and device for raising and waking up based on a three-axis acceleration sensor. Background technique [0002] As mobile devices play an increasingly important role in human life, users have higher and higher requirements for portable devices. For example, in the mobile phones that people use every day, waking up the mobile phone, turning on the screen, and waiting for the black screen are the most frequent operations of users every day. The traditional method of waking up the phone and lighting the screen requires the user to press the power button or the home button. The disadvantage of this method is that the position of the power button must be determined every time, and long-term pressing will weaken the sensitivity of the button. [0003] In order to solve the above-mentioned problems, the currently adopted method is to wake up the device by dete...

AI Technical Summary

Problems solved by technology

[0004] However, for ordinary single-chip microcomputers, the method of capturing gestures based on cameras is difficult to implement, and more complex matching algorithms cannot be run on single-chip microcomputers.

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