Human health monitoring system based on piezoelectric smart sensor

Detection of pulse in a human body plays an important role for Health Monitoring and treatment of diseases. In this work we have streamlined our efforts towards obtaining a solution for long-term heart rate monitoring system that can be used at home as well as medical establishments. We have made a comparative study here of the microfibers of the materials poly vinylidene fluoride (PVDF) and lead zirconate titanate (PZT) with the help of COMSOL to understand the suitability of these materials in capturing pulse signals. PZT shows higher electric potential of 21.8 V compared to PVDF which shows 11.6 V for a single microfiber. Therefore here we use a PZT disc sensor in conjunction with Arduino UNO and Arduino IDE to detect the pulse signal and count them. The main objective of this paper is to provide a simple and non-invasive device which while eliminating human errors also allows remote monitoring of patients and at the same time reduces the average time required by the doctor to analyze the patient's health condition.