A VHDL Based Controller Design for Photoplethysmography-Based Heart Rate Monitoring System

Continuous monitoring of heat rate using wearable technology has the potential of improving healthcare and fitness and reducing the risk of cardiovascular diseases. A Photoplthysmography (PPG) based optical sensors are becoming popular to detect heart rate from human body. However, interfacing different sensors, acquiring and processing data in real time is a challenging task and requires dedicated hardware. Field Programmable Gate Array (FPGA) has become most widely used technology for real-time application. In this research, the necessary drivers and interfacing hardware for the PPG sensor are implemented on a FPGA platform using hardware description language (HDL). With the help of simulation and experimental results the accuracy and functionality of the proposed system are verified.