Design of a Vital Sign Detection System Based on Pulse Waves
This paper describes the design of an embedded vital sign detection system,which measures human PPG signals and performs software and hardware filtering,feature extraction,and algorithm processing.It proposes a method for extracting pulse wave conduction time from PPG signals,displaying non-invasive measurements of blood oxygen saturation and blood pressure on the screen.The Bland Altman consistency analysis showed that the data were all within the 95％confidence interval,indicating that the system has high accuracy in detecting blood oxygen saturation,systolic and diastolic blood pressure.
embedded systemphotoelectric capacitance pulse wavevital sign parameterspulse wave conduction time
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