ubiSleep: An ubiquitous sensor system for sleep monitoring
Nuno Gonçalo Coelho Costa Pombo, Nuno M. García · 2016
The emergent importance of the sleep medicine together with the rapid adoption of mobile devices and wearables along with a growing habit for using these devices on the daily-living activities offer an opportunity to use them as a sleep monitor. Traditional sleep monitoring systems, such as polysomnography, involves a myriad of sensors attached around the patients' body, and therefore is limited to clinical usage. In line with this, alternative solutions have been widely investigated focused both to infer sleep information based on a reduced number of sensors, and to use non-invasive and feasible technologies. This study presents an ubiquitous architecture based on portability and interoperability concepts in which a smartwatch is combined with a smartphone to implement a sleep monitoring system. This system joints heart rate, accelerometer, and sound signals collected into the smartwatch. Thus, the preliminary results revealed that the proposed system is feasible and suitable for sleep monitoring. In spite of the early stage of this system, the developed framework already includes an API for data exchange between the smartwatch and the smartphone. However, additional studies should be addressed in order to complement and enhanced the proposed system with novel algorithms for signal treatment, including the development of several classifiers specific oriented to snore, motion and sleep detection.