Guidelines for calibration and drift compensation of a wearable device with rate-gyroscopes and accelerometers.
The technical note describes a methodology for the calibration and the drift compensation of a device with accelerometers and rate-gyroscopes. The methodology is based on a step-wise-motor approach and a simulation environment with the device simulation model for optimisation of the calibration parameters. The validation on a wide range of locomotion tasks performed by 30 subjects with some unbalance problems showed the feasibility of the methodology. In particular, a correlation was found between simulated and actual data (0.15 degrees in maximal value). Results also showed that the drift compensation procedure significantly improved the performances of the device.
Giansanti
Daniele
D
Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, via Regina Elena 299, 00161 Roma. Daniele.giansanti@ieee.org
Maccioni
Giovanni
G
Macellari
Velio
V
D000054:Acceleration; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D001696:Biomechanical Phenomena / Q000295:instrumentation* / Q000379:methods; D002138:Calibration; D004867:Equipment Design; D006801:Humans; D016018:Least-Squares Analysis; D008875:Middle Aged; D018670:Monitoring, Ambulatory / Q000295:instrumentation* / Q000379:methods*; D009068:Movement; D015203:Reproducibility of Results; D012815:Signal Processing, Computer-Assisted