A novel pulseoximeter for bluetooth synchronized measurements in a body sensor network

Wearable Monitoring Systems recording vital signs as the Electrocardiogram (ECG) or the Photoplethysmogram (PPG) have become very popular and are widely spread since the last decade. Numerous heart rate monitors, pulseoximeters, step counters or activity recorders are commercially available and already play an important role in common everyday lives. However, synchronicity among multiple devices, sensor fusion approaches, automatic signal quality estimation and further multi-modal signal processing steps still pose significant challenges to current developments and future projects. This work touches upon these problems and gives an insight of the recent achievements by presenting a novel pulseoximeter suited for transmissive and reflexive measurements. The systems' accuracy regarding timer-synchronization and overall hardware performance are presented in the scope of a combined heart rate pulse rate detection application.