Miniature wireless inertial sensor for measuring human motions.
A sensor system for measuring human motions is presented. The system consists of a number of miniature wireless inertial sensors that are attached to limbs of a person, and a PC with a wireless receiver that interprets and presents the measurement data. Each of the sensors measures 3D-acceleration, 3D-magnetization (earth magnetic field) and 3D-angular speed (gyroscopes). The data is transmitted via a proprietary protocol on an 802.15.4 radio. The angular accuracy of the calibrated system was found to be better than 3 degrees. The system is currently being applied in a pilot trial for motor rehabilitation of stroke patients.
van Acht
Victor
V
Philips Research, WB 1.001, High Tech Campus 34, 5656AE Eindhoven, The Netherlands. victor.van.acht@philips.com
Bongers
Edwin
E
Lambert
Niek
N
Verberne
Rene
R
D000054:Acceleration; D001132:Arm / Q000502:physiology*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D008904:Miniaturization; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D009043:Motor Activity / Q000502:physiology; D009068:Movement / Q000502:physiology*; D013686:Telemetry / Q000295:instrumentation*; D014159:Transducers