Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Portable device and method oriented for device for real-time measuring of step length

A wearable device and measurement method technology, applied in the directions of diagnostic recording/measurement, application, telemetry patient monitoring, etc., can solve the problems of inability to measure single step length in real time and low gait measurement accuracy.

Active Publication Date: 2017-02-22
ZHEJIANG UNIV
View PDF7 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 real time in the prior art, and provide a wearable device and a real-time step length measurement method for the device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Portable device and method oriented for device for real-time measuring of step length
  • Portable device and method oriented for device for real-time measuring of step length
  • Portable device and method oriented for device for real-time measuring of step length

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] The present invention will be further described below in conjunction with accompanying drawings, because it is convenient to understand better. The technical features in the present invention can be combined with each other under the premise of not conflicting with each other, which does not constitute a limitation.

[0075] The invention uses a wearable device including four inertial measurement sensors and a geometry-based algorithm to calculate and output the posture and step length of the user's lower limbs in real time while walking. Real-time step length measurement means that when a gait event of forefoot landing is detected, the step length of the step is calculated. Taking a certain user as an example, the specific implementation process of the present invention is as follows:

[0076] (1) Preparation work:

[0077] In this embodiment, the thigh length of the target user is 42 cm, and the calf length is 53 cm, which are input into the host computer of the wea...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of portable sensor, particularly discloses a portable device and a method oriented for the device for the real-time measuring of step length. The device can measure and transmit the two dimensional posture of the user's lower limbs and the step length information of the user's each step during the walking process of the user in a real time fashion. The device can be used to check the unsymmetrical level of the user's pacing style. The invention applies the real-time data about the angular speed, acceleration collected from four inertial sensor units to calculate and export the user's lower limbs postures and step length through a geometrical algorithm. The device has the advantages of convenient use, absence of location restriction, low cost, real-time and precise output of the user's lower limbs postures and step length, high reliability and splendid prospects for future promotion.

Description

technical field [0001] The invention belongs to the field of wearable sensors, in particular to a wearable device and a real-time step length measurement method for the device. 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 parameters, such as gait even...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/11
CPCA61B5/0002A61B5/112A61B5/6802A61B5/6828A61B5/7235
Inventor 刘涛王磊李庆国金仲和
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com