Inertial and time-of-arrival ranging sensor fusion.
Gait Posture
; 54: 1-7, 2017 05.
Article
en En
| MEDLINE
| ID: mdl-28242567
Wearable devices with embedded kinematic sensors including triaxial accelerometers, gyroscopes, and magnetometers are becoming widely used in applications for tracking human movement in domains that include sports, motion gaming, medicine, and wellness. The kinematic sensors can be used to estimate orientation, but can only estimate changes in position over short periods of time. We developed a prototype sensor that includes ultra wideband ranging sensors and kinematic sensors to determine the feasibility of fusing the two sensor technologies to estimate both orientation and position. We used a state space model and applied the unscented Kalman filter to fuse the sensor information. Our results demonstrate that it is possible to estimate orientation and position with less error than is possible with either sensor technology alone. In our experiment we obtained a position root mean square error of 5.2cm and orientation error of 4.8° over a 15min recording.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fenómenos Biomecánicos
/
Algoritmos
/
Procesamiento de Señales Asistido por Computador
/
Acelerometría
/
Dispositivos Electrónicos Vestibles
Tipo de estudio:
Prognostic_studies
Límite:
Humans
Idioma:
En
Revista:
Gait Posture
Asunto de la revista:
ORTOPEDIA
Año:
2017
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Reino Unido