Abstract—Because of advances in inertial microelectronics and mobile computing technologies, highly accurate sensor hardware has become ubiquitous in modern smartphones. This paper introduces a framework that networks smartphone devices to produce body sensor networks for motion capture and activity tracking application areas. Data is transferred in real-time using the motion cloud, an online gateway and storehouse for inertial data. The goal of this research is to present a modular methodology for amalgamating smartphone sensor data within a centralized repository that is suitable for experimental research. The proposed framework explores solutions for sensor fusion, data synchronization, data streaming and remote control func- tionality in smartphones. To demonstrate sensing accuracy, three devices are strapped to the motion performer’s arm to record the articulated motion of a hand wave gesture. To demonstrate continuous sensing, two devices are networked for a period of two hours to identify differences between sedentary and active comportments.
Index Terms—Body Sensor Network, Motion Capture, Activity
Tracking, Animation, Smartphone