Title :
Experimental evaluation of arm motion using tri-axial accelerometers based on factorized quaternion approach
Author :
Low, K.-S. ; Lee, G.X.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
In this paper, we evaluate a factorized quaternion approach for determining the arm orientation experimentally. The proposed approach uses tri-axial accelerometers with consideration of anatomical and sensor constraints. Experiments have been conducted using a wireless sensor network that comprises of tri-axial accelerometer sensor nodes attached to the arm. The results have been benchmarked with a commercial inertial measurement unit to validate the performance and advantages of this new system. Comparable performance in terms of accuracy has been obtained at a much reduced cost and lower power consumption.
Keywords :
accelerometers; biomedical equipment; biomedical measurement; body sensor networks; gait analysis; motion measurement; power consumption; anatomical constraints; arm motion experimental evaluation; arm orientation; commercial inertial measurement; factorized quaternion approach; power consumption; sensor constraints; triaxial accelerometer sensor node; wireless sensor network; Acceleration; Computers; Hospitals; Joints; Magnetometers; Monitoring; Rotation measurement;
Conference_Titel :
Industrial Technology (ICIT), 2012 IEEE International Conference on
Conference_Location :
Athens
Print_ISBN :
978-1-4673-0340-8
DOI :
10.1109/ICIT.2012.6209933