Method of confirming motion parameters apparatus for the same, and motion assisting device
US8725452B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 2011 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Oct 3, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2102/32
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides a method of confirming motion parameters, an apparatus for the same, and a motion assisting device. The invention obtains and utilizes the motion data of a recognized object sampled at each of the sampling time, comprising the acceleration of the recognized object sampled by a tri-axial accelerometer, the angular velocity of the recognized object sampled by a tri-axial gyroscope, and the angle of the recognized object corresponding to a three-dimensional geomagnetic coordinate system sampled by a tri-axial magnetometer. Feedback calculation is utilized to obtain an actual acceleration at each sampling time from the motion original time to the motion end time, and the actual acceleration is obtained by reducing the acceleration of gravity from the acceleration sampled by a tri-axial accelerometer. The invention reduces the complexity of the system, and the accuracy is less affected by environmental factors, particularly light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.