Gait recognition method and corresponding pedometer

Abstract

The embodiment of the invention discloses a gait recognition method and a corresponding pedometer. The gait recognition method comprises the following steps: acquiring acceleration signals during wrist movement, wherein the acceleration signals comprise a first sensitive shaft signal and a second sensitive shaft signal; selecting one of the first sensitive shaft signal and the second sensitive shaft signal as the current gait recognition signal according to the moving state of the previous gait; determining whether the current gait is complete or not by judging the conversion between a wave peak section and a wave trough section of the current gait recognition signal based on the dynamic threshold value preset for the previous gait. The gait recognition method is capable of effectively recognizing running and other walking modes, thus improving the step-counting accuracy.

Description

technical field [0001] Various embodiments of the present disclosure relate to the field of pedometers, and more specifically relate to a gait recognition method and a corresponding pedometer. Background technique [0002] With the strengthening of people's health awareness, people pay more attention to the amount of exercise in daily activities. As a small fitness equipment, the pedometer can help people record the amount of exercise and energy consumption per day, for people to evaluate whether the amount of exercise is up to standard, and to help people formulate more reasonable fitness plans. [0003] The walking mode generally includes five kinds of motions: standing still, walking, going up stairs, going down stairs, and running. During step counting processing, if different walking states can be effectively distinguished, the accuracy of step counting will inevitably be improved. In general, there are significant differences in stride frequency and energy expenditur...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the patent with the publication number CN101881625A proposes to judge walking or running by the amplitude range of the synthetic acceleration. This method has such a problem: when a person walks fast, the arm swing frequency also increases synchronously, and the arm swings in the front and back direction and The change value of motion acceleration in the vertical direction increases, which will have an impact on the magnitude of the composite acceleration, causing brisk walking to be recognized as running

Judging whether the step counting scheme needs to be changed by the difference between the maximum acceleration change axis and the acceleration change value of another axis, the problem with this method is that it performs a motion state recognition for each step, and the human motion process has Persistence, too frequent motion state recognition is prone to errors, and the invention does not analyze the possible step counting errors, and then proposes a step counting compensation scheme

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