Self-adaptive multi-threshold smart phone step counting method based on time-dependent attenuation mechanism

Abstract

The invention discloses a self-adaptive multi-threshold smart phone step counting method based on a time-dependent attenuation mechanism, and relates to the technical field of indoor positioning. The step counting method comprises the following steps: acquiring three-axis acceleration data and preprocessing; identifying a static state and calculating a first wave crest and a second wave crest; self-adaptive threshold calculation based on a time-dependent attenuation mechanism; a self-adaptive threshold value is used for eliminating false wave crests to realize step number detection; and the step number is corrected according to the state of the two feet, and the detected wave crest number is counted. Compared with the prior art, the method has high applicability to different pedestrians, a large amount of early-stage work does not need to be prepared for different movement modes and different mobile phone placement positions, different mode recognition does not need to be carried out, and high step counting precision can be achieved.

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