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Related Concept Videos

Gyroscope01:02

Gyroscope

A gyroscope is defined as a spinning disk in which the axis of rotation is free to assume any orientation. When spinning, the orientation of the spin axis is unaffected by the orientation of the body that encloses it. The body or vehicle enclosing the gyroscope can be moved from place to place, while the orientation of the spin axis remains the same. This makes gyroscopes very useful in navigation, especially where magnetic compasses cannot be used, such as in crewed and crewless spacecraft,...
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Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a vertical angle and is not spinning, it will fall over due to the force of gravity producing a torque acting on its center of mass. However, if the top is spinning on its axis, it precesses about the vertical direction, rather than topple over due to this torque. Precessional motion is a combination of a steady circular motion of the axis and the...
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Home-Based Monitor for Gait and Activity Analysis
07:24

Home-Based Monitor for Gait and Activity Analysis

Published on: August 8, 2019

An accurate and robust gyroscope-gased pedometer.

Yoong P Lim1, Ian T Brown, Joshua C T Khoo

  • 1Monash University Centre for Biomedical Engineering (MUCBE), Clayton, Victoria 3800, Australia. yoong.lim@eng.monash.edu.au

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|January 24, 2009
PubMed
Summary

This study introduces a new gyroscope-based pedometer to overcome the step estimation errors common in traditional acceleration-based devices. The novel design offers accurate and robust step counting using advanced signal processing techniques.

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Area of Science:

  • Biomechanics
  • Sensor Technology
  • Signal Processing

Background:

  • Traditional pedometers using accelerometers exhibit significant step estimation inaccuracies.
  • These errors stem from the inherent limitations of acceleration-based sensing.

Purpose of the Study:

  • To propose a novel pedometer design utilizing micro-machined gyroscopes.
  • To enhance step counting accuracy and robustness by overcoming accelerometer limitations.

Main Methods:

  • Employing a micro-machined gyroscope for motion sensing, offering superior immunity to acceleration.
  • Utilizing syntactic data recognition based on human shank dynamics.
  • Implementing Wavelet decomposition for precise heel strike detection.

Main Results:

  • The proposed gyroscope-based pedometer demonstrates improved accuracy in step estimation.
  • The system exhibits enhanced robustness compared to conventional pedometers.
  • Advanced signal processing techniques effectively identify human gait dynamics.

Conclusions:

  • A gyroscope-based pedometer offers a more accurate and reliable solution for step counting.
  • The integration of syntactic data recognition and Wavelet decomposition is key to the system's performance.
  • This approach addresses the limitations of existing pedometer technologies.