“…The main components in the framework are various sensors, such as battery-less body-worn passive sensors with a scanner (i.e., reader for the passive sensors), commercial wearables, a custom smartphone app (SCC-Health app), and a custom web server (SCC-Health server). Details of the design and functionality of the sensors and scanner can be found elsewhere [17]. For physiological data collection, we utilized novel inkjet-printed (IJP) sensors in addition to commercial wearables such as a smart wristband (Mi Band 2, Xiaomi, Beijing, China) and a fingertip pulse oximeter (CMS50E, Crucial Medical Systems, Atlanta, GA, USA) [18].…”