Human body step length measuring method used on wearable device and measuring device thereof

A technology of wearable equipment and measurement method, which is applied in the direction of measurement device, diagnostic record/measurement, application, etc., and can solve the problems of inability to measure single-step step length and low accuracy of gait measurement

Active Publication Date: 2017-06-30
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the defects of low gait measurement accuracy and inability to measure single-step step length in the prior art, and provide a human body step length measurement method and its measurement equipment for wearable devices

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  • Human body step length measuring method used on wearable device and measuring device thereof
  • Human body step length measuring method used on wearable device and measuring device thereof
  • Human body step length measuring method used on wearable device and measuring device thereof

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Embodiment Construction

[0097] The present invention will be further described below in conjunction with accompanying drawings, because it is convenient to understand better. The following embodiments of the present invention are only used to provide a preferred mode, but the technical features can be combined with each other on the premise of not conflicting with each other, which does not constitute a limit to the protection scope of the present invention.

[0098] The present invention uses a wearable device including two inertial measurement sensors and an algorithm based on acceleration integration to measure the user's stride length while walking. Taking a certain user as an example, the specific implementation process of the present invention is as follows:

[0099] (1) Preparation work:

[0100] In this embodiment, the target user wears a wearable device, two inertial sensors are symmetrically placed on the left and right calves, and the distance d from the origin of the sensor coordinate ax...

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Abstract

The invention belongs to the wearable sensor field and discloses, in particular, a human body step length measuring method used on a wearable device and the measuring method thereof. The measuring method requires the use of two inertial sensor units to collect and store the acceleration and angular velocity data of a human body in the walking process, and then uses the corresponding algorithm to calculate the user's step length information. The method can be used to estimate the user's gait asymmetry. The two inertial sensors are placed on the user's two calves simply, conveniently and with skills. Therefore, the method can be used conveniently, is free of restrictions of locations, and is low in cost. The method is able to calculate the user's step lengths at high accuracy, boasts relatively high reliability and has good prospects for promotions.

Description

technical field [0001] The invention belongs to the field of wearable sensors, and in particular relates to a human body step length measurement method for wearable devices and a measurement device thereof. Background technique [0002] Gait parameters are physical parameters in the process of human walking, which can reflect human movement ability and have great application value. Therefore, many researchers are currently studying the measurement of gait parameters. Wearable sensors include inertial measurement units, ultrasonic sensors, miniature cameras, etc. Compared with equipment for measuring gait parameters in large laboratories such as optical motion capture systems, force plates, etc., they are small, cheap, and time-sensitive. , space limitation, easy promotion and other advantages are widely used in the field of gait parameter measurement. At present, many studies use wearable sensors placed on human legs, waist, wrist, chest and other parts to measure gait time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/02A61B5/11
CPCA61B5/112A61B5/6802A61B5/72G01B21/02
Inventor 刘涛王磊李庆国
Owner ZHEJIANG UNIV
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