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Step counting method and apparatus based on tri-axial acceleration sensor

A shaft acceleration and sensor technology, applied in the electronic field, can solve problems such as inaccurate step counting and inability to count steps

Active Publication Date: 2017-01-04
SHENZHEN UNIV
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  • Abstract
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Problems solved by technology

[0004] The present invention provides a step counting method and device based on a three-axis acceleration sensor, aiming to solve the inaccurate step counting caused by the step counting method in the prior art being easily interfered by external factors or unable to calculate steps according to the motion state The problem

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  • Step counting method and apparatus based on tri-axial acceleration sensor
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Embodiment Construction

[0013] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0014] see figure 1 , figure 1 Provide a schematic diagram of the implementation process of the step counting method based on the three-axis acceleration sensor for the first embodiment of the present invention, which can be applied to mobile terminals with step counting functions such as mobile phones, smart watches, smart bracelets, smart ...

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Abstract

The invention discloses a step counting method and apparatus based on a tri-axial acceleration sensor. The method comprises the following steps: detecting a peak point and a valley point in a waveform of a target acceleration signal, determining the peak point and the valley point as well as the number of the peak points and the number of the valley points according to a detection result, using the number of the peak point or the valley point as a step frequency feature, determining a motion type of a person according to the step frequency feature, determining a target peak point and a target valley point in the waveform of the target acceleration signal by using a preset time window and preset peak-valley value window corresponding to the motion type, and using the number of the target peak points or the number of the target valley points as the step number of the person motion. According to the method, different motion states of the person can be judged by extracting the step frequency feature of the person, and the interference can be effectively eliminated by using the characteristic that each motion state correspondingly has different time windows and peak-valley value windows, so that the calculated step number is more accurate.

Description

technical field [0001] The invention belongs to the field of electronic technology, in particular to a step counting method and device based on a three-axis acceleration sensor. Background technique [0002] At present, people are becoming more and more enthusiastic about sports such as jogging, walking and walking. Scientific exercise can not only prevent diseases, improve living conditions, but also prevent sports injuries. In order to meet the needs of the public, many smart devices have been launched on the market, such as sports bracelets, sports anklets and other devices. The most basic function of these devices is to count steps. A good method for calculating the number of steps can calculate the number of steps closer to the actual number of steps, so the method of calculating the number of steps is particularly important. [0003] In the prior art, the method of calculating the number of steps is divided into the following two categories: one is the peak detection...

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Application Information

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IPC IPC(8): G01C22/00
CPCG01C22/006
Inventor 阳召成郑鑫博任小雪刘薇朱志远李钢
Owner SHENZHEN UNIV
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