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Step counting method based on three-axis acceleration sensor

A shaft acceleration and sensor technology, applied in the electronic field, can solve the problems of high power consumption, etc., and achieve the effects of low power consumption, stable step counting, and wide application range

Pending Publication Date: 2020-06-05
桂林市优创电子科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In the prior art, the step counting method implemented by the above-mentioned smart device usually has the following problems: since the signal of the three-axis acceleration sensor needs to be smoothed and filtered, the data

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  • Step counting method based on three-axis acceleration sensor
  • Step counting method based on three-axis acceleration sensor
  • Step counting method based on three-axis acceleration sensor

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Embodiment Construction

[0055] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0056] It should be noted that all directional indications (such as up, down, left, right, front, back, ...) in the embodiments of the present invention are limited to relative positions on the specified view, rather than absolute positions.

[0057] In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitl...

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Abstract

The invention relates to the technical field of electronics, and particularly relates to a step counting method based on a three-axis acceleration sensor. The method comprises a step S2, acquisition of triaxial acceleration signals, calculating a resultant acceleration value through a formula; step S3, judging whether a predicted step wave crest exists in the nth moving time window or not according to a resultant acceleration time sequence {A (t); t=1, 2; step S8, extracting step counting and filtering characteristics GapStd and ARate; step S9, judging whether the two characteristics GapStd and ARate of the resultant acceleration meet a step counting filtering condition or not by utilizing two linear classifiers on a characteristic plane; step S11, classifying and identifying walking states; and step S12, adaptively adjusting parameters MinGap, MinMag and DeltaMag according to the amplitude value of the latest obtained step counting wave crest. Compared with the prior art, the step counting method based on the three-axis acceleration sensor is less affected by noise of collected signals, step counting is stable, and power consumption is low.

Description

【Technical field】 [0001] The invention relates to the field of electronic technology, in particular to a step counting method based on a three-axis acceleration sensor. 【Background technique】 [0002] With the development of society, people pay more and more attention to their health. Real-time detection of step count can help people grasp the exercise situation in real time and urge them to develop healthy living habits. [0003] Smart phones, bracelets, watches and other smart devices have become popular and have the advantages of easy portability, fast response, and convenient wireless communication. It is an ideal choice to realize the step counting function through the three-axis acceleration sensor carried by the smart device. [0004] In the prior art, the step counting method implemented by the above-mentioned smart device usually has the following problems: since the signal of the three-axis acceleration sensor needs to be smoothed and filtered, the data storage o...

Claims

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Application Information

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IPC IPC(8): G01C22/00
CPCG01C22/006
Inventor 李丰兵蔡露李子青杨其迁孟益方
Owner 桂林市优创电子科技有限公司
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