The lavatory-typed health monitoring system with linear system identification scheme for home healthcare

The system proposed in this paper has been designed to acquire and transmit vital signals from lavatory-attached acquisition device in ubiquitous healthcare environment. We focused on the system to be unconstraint and non-invasive by introducing automatic measurement procedures. ECG, SpO2, NIBP, impedance and weight were measured and recorded. Detected bio-signals were evaluated and became available to the patients to check the results immediately so that the data could be sent to doctors simultaneously. For the quantitative assessment of individual user´s health condition by using signals from our system, we propose to apply linear parametric system identification method which provides a means to investigate cardiovascular regulatory mechanisms.