Method and device for estimating running step size

Abstract

The invention discloses a method and a device for estimating a running step size. The method comprises: acquiring vertical acceleration data, detecting a plurality of peak values of vertical acceleration data, and recording an interval between two adjacent vertical acceleration peak values as a step interval; performing quadratic integral processing on the vertical acceleration data of each step interval to obtain a vertical displacement; identifying the motion posture of a user according to the vertical acceleration data of each step interval; and calculating running parameters correspondingto the step interval identified as the running; obtaining running step size data of each step interval according to the vertical displacement and the running parameters; the method and device obtain reference data through hardware of the device self, thereby avoiding inaccurate positioning due to instability of positioning signal; at the same time, the running step is compensated for running dynamically by identifying the posture to obtain a more accurate step size estimation; the method and device can be further used for indoor motion trail estimation.

Description

technical field [0001] The present invention relates to the technical field of indoor positioning, and more particularly, to a method and device for estimating running step length. Background technique [0002] With the advancement of science and technology, people's travel is increasingly relying on various navigation and route planning software to determine their travel routes and their location; currently more accurate navigation methods, such as GPS navigation, need to send and receive positioning signals through software To locate the user, when the user is indoors, barriers such as walls will affect the strength of the positioning signal, which makes the positioning method that relies on receiving positioning signals very unstable indoors; the positioning method that does not rely on receiving positioning signals , it is common to estimate the walking path based on the number of walking steps and direction of the user; but this type of method only considers the situati...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the positioning method that relies on receiving positioning signals in the background technology is very unstable indoors and the positioning method that does not rely on positioning signals cannot meet the user's step length estimation when running, the present invention provides a running A step length estimation method and device, the method and device obtain real-time acceleration through the hardware of the device itself, and obtain the estimated value of the running step length of each step through the acceleration data; at the same time, the method and the device recognize the posture, dynamically motion compensation for running strides for more accurate stride estimation

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