Elderly people may be affected by a decline in daily functioning that usually involves the reduction and discontinuity in daily routines and a worsening in the overall quality of life. In the literature, several systems aimed at detecting and overwhelming the worsening in daily activities have been proposed. Recently, solutions have been proposed to unobtrusively monitor activities of people that need assistance, as for instance elderly people [Rafael-Paolou et al., in press]. In particular, sensor-based approaches are normally used [Pol et al., 2013]. They rely on a conjunction of sensors, each one devoted to monitor a specific status, a specific activity or activities related to a specific location.
In this paper, we present our experience in monitoring 9 elderly people for 5 months through a sensor-based telemonitoring system. The goal of the adopted system is twofold. On the one hand, it is aimed at helping and supporting elderly people that live alone at home. On the other hand, it is devoted to constantly give a feedback to therapists, caregivers, and relatives about the evolution of the status, behavior and habits of each monitored user.