A Design of Pulse Wave Signal Collecting and Analysis System Based on USB

As the rapid increase of the incidence of cardiovascular disease, more and more people begin to realize the importance of detecting and monitoring the cardiovascular function. However, the traditional non-invasive cardiovascular function detecting methods trend to be more expensive, complicated and settled, which are not suitable for real-time and fast detecting. A novel pulse wave collecting and analysis system is designed in this paper to achieve the goal of real-time pulse wave collecting and cardiovascular function detecting, which is portable and easy to use. The MCU used in the proposed signal collector is C8051F320 designed by Silicon Laboratories. A USB-based pulse wave signal collector with appropriately designed I/O interface and peripherals is designed and implemented firstly. Then, an analysis software designed for Personal Computer (PC) is developed based on radial pulse contour characteristic value K method. Finally, the experimental results demonstrate the validity of the proposed system.