Experimental evaluation of arm motion using tri-axial accelerometers based on factorized quaternion approach

• Main Authors: Lee, G. X., Low, K. S.
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/84649; http://hdl.handle.net/10220/12035
• Institution: Nanyang Technological University

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.