Design of a Health Monitoring System for SCUBA Divers

This work proposes a novel diver health monitoring system (HMS) for continuously measuring cuffless blood pressure (BP) via exploiting the pulse arrive time (PAT) between electrocardiogram (ECG) and photoplethysmogram (PPG) signals. Pulse Arrival Time (PAT) is the time difference between ECG, R-peak and PPG peak from synchronised time signals. The proposed solution effectively correlates the PAT with BP and proves the same with data obtained from both normal and elevated BP patients. This system enables continuous, cuffless and minimally obtrusive measurement of BP on a continuous basis and can detect sudden increase in transient BP levels to raise an alert. This system can also serve as a platform for acquiring synchronized ECG and PPG signals for detecting various other cardiac ailments such as Arrhythmias, Tachycardia, etc.