Step counting method based on micromechanical gyroscope

Abstract

The invention discloses a step counting method based on a micromechanical gyroscope. A reference coordinate system is established with the center of the human body as a coordinate original point, theZ axis points to the vertical direction, the X axis points to the forward direction of a person, the Y axis points to the left side, and the right-hand rule is accorded with; the micromechanical gyroscope is placed on the thigh of a pedestrian, and a sensitive shaft of the micromechanical gyroscope is parallel to the Y axis; the movement state of the pedestrian is determined by detecting whether or not the micromechanical gyroscope has periodic output, and the number of walking steps of the pedestrian is calculated. The step counting method based on the micromechanical gyroscope is complete infunction and easy to implement, has an obvious effect and can replace a commonly-used step counting method based on an accelerometer; the method is applied to a navigation positioning system, the accelerometer special for step counting can be omitted, and the method has a great significance on simplifying the system and saving the cost.

Description

technical field [0001] The invention belongs to the technical field of pedestrian navigation, and in particular relates to a pedestrian step counting method of a micromechanical gyroscope. Background technique [0002] The design idea of ​​the traditional pedometer device is to use the 3-axis accelerometer fixed on the waist, back and other parts of the human body to measure the acceleration signal when the pedestrian is walking, and then use the algorithm to sufficiently identify the standing period and the stepping period of the pedestrian walking, and at the same time realize the walking step. Counting steps using accelerometer sensors is the most commonly used technology at present, but due to the uncertainty of pedestrian walking patterns, high-precision sensors and complex software algorithms are needed to accurately detect the real steps in order to accurately realize step counting , put forward higher requirements on CPU and cost. Contents of the invention [0003...

AI Technical Summary

Problems solved by technology

[0002] The design idea of ​​the traditional pedometer device is to use the 3-axis accelerometer fixed on the waist, back and other parts of the human body to measure the acceleration signal when the pedestrian is walking, and then use the algorithm to sufficiently identify the standing period and the stepping period of the pedestrian walking, and at the same time realize the walking step. Counting steps using accelerometer sensors is the most commonly used technology at present, but due to the uncertainty of pedestrian walking patterns, high-precision sensors and complex software algorithms are needed to accurately detect the real steps in order to accurately realize step counting , puts higher demands on CPU and cost

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