Experimental study of an optical wireless physical activity monitoring system

摘要

We propose in this paper, an optical wireless communicating accelerometer-based system for physical activity level monitoring. Optical wireless technology presents the advantage to be secure regarding electromagnetic interference, low-cost and easy to deploy. Considering a mobile patient we experimentally investigate the performance in terms of packet failure of our wearable system communicating with several optical receivers fixed in the environment. Measurements are reported as a function of directivity of optical source, emitted power and the number of receivers. The results are analyzed and discussed regarding the quality of service of physical activity application.