Fuzzy heart rate variability detection by air pressure sensor for evaluating autonomic nervous system

摘要: This paper proposes a functional assessment system of autonomic nervous using an air pressure sensor. The sensor can unconstraintly detect vital information by placing it under the mattress in bed. We perform heart rate variability obtained system. In this system, we employ fuzzy membership functions with dynamic parameter to RR intervals. experimental results show that intervals correlation coefficient 0.851 comparison electrocardiograph. Then errors HF (index parasympathetic system) and LF/HF sympathetic are 11.98% 22.18%, respectively.