A smart terminal displacement calculation method and device

Abstract

The invention provides a displacement computing method and device for an intelligent terminal. The method comprises the following steps: acquiring the acceleration data of the intelligent terminal; judging whether the intelligent terminal is in a motion state according to the acquired acceleration data of the intelligent terminal and a preset threshold value so as to obtain a judgment result; acquiring the acceleration data of the intelligent terminal when the judgment result shows that the intelligent terminal is in the motion sate; removing the noise data in the acquired acceleration data so as to obtain the preprocessing data of the acceleration data; computing the preprocessing data so as to obtain the displacement data of the intelligent terminal. By firstly removing the noise data in the acquired acceleration data of the intelligent terminal and then computing the displacement of the intelligent terminal according to the obtained preprocessing data, the displacement computing method and device for the intelligent terminal can avoid the defect that the computing results deviate because of the direct processing of the acquired acceleration data.

Description

technical field [0001] The invention relates to the field of calculation processing, in particular to a method and device for calculating displacement of an intelligent terminal. Background technique [0002] Smart terminals are the current development trend of terminals. The smart terminal integrates a variety of sensors such as gyroscopes and accelerometers, and makes underlying calls through its own operating system to provide data for other applications. [0003] The existing intelligent terminal displacement calculation method is to convert the acceleration signal of the test point into a corresponding electrical signal through the sensitive element of the intelligent terminal acceleration sensor, enter the preamplifier circuit, improve the signal-to-noise ratio of the signal through the signal conditioning circuit, and then perform analog The digital signal is obtained through digital conversion, and finally sent to the intelligent terminal system, and the system stor...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the existing technology is that in the existing intelligent terminal equipment, the collected acceleration data is directly calculated, because there are a lot of noise data in the acceleration data (the data in the collected acceleration data that is smaller than the set threshold is called As noise data), it will lead to deviation in the calculation result of displacement, and the deviation will gradually increase through accumulation, so after a period of use, it will be difficult to obtain more accurate acceleration data. If it is not corrected in time, This will become a major source of systematic error; moreover, the deviations that occur will adversely affect data processing based on the obtained displacement data, often leading to greater deviations in the results of data processing or to data processing The result cannot achieve the original purpose of data processing

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