Human-subject tracking and localization for a hand hygiene monitoring system

Hand hygiene plays an important role in both healthcare institutions and food processing industries. This paper describes a tracking and localization method for hand hygiene activity monitoring. The localization algorithm was developed to identify different subjects with mobile tags within a predefined area near the hand-washing sink A demo system was constructed that was comprised of a system server, one sink node, two anchor nodes and two mobile nodes. Preliminary tests were conducted. The collected data showed that the wearable mobile tag could be identified within a detectable area of 1.2m×0.7m in front of the hand-washing sink.