Affiliation:
1. The College of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo, Henan, China
Abstract
Pulse oximetry saturation (SpO2) is a main parameter that reflects the condition of the human cardiovascular system. It is best to detect SpO2 non-destructively with photoplethysmography (PPG). The embedded technique was used to control the dual-wavelength LED illuminating the fingertips, photoelectric sensors to detect reflection data and, then, upload the data to computers, IIR filtering and S-G smoothing filtering on MatLab to process the collected data. The results is shown that the discreteness of the processed data was reduced by 2–6% and the high-frequency noise and motion artifact were removed effectively. It would provide some references for improving the accuracy of the pulse oxygen saturation monitoring system in a complex environment.
Funder
Opening Project of Henan Engineering Laboratory of Photoelectric Sensor and Intelligent Measurement and Control, Henan Polytechnic University
Science and Technique Plan Project of Henan Technology Department
Publisher
World Scientific Pub Co Pte Ltd
Subject
Condensed Matter Physics,Statistical and Nonlinear Physics