基于FPGA的脉搏波速度测量系统设计

Design of PWV measurement system based on FPGA

动脉脉搏波速度能够很好地反映动脉弹性,准确测量动脉脉搏波速度对预防和治疗心血管疾病有很大的帮助。设计了一种基于FPGA的脉搏波速度测量系统,系统由调理模块、AD采集模块、触摸屏控制显示模块组成。采用SOPC Builder配置FPGA内核,同步采集2路脉搏信号,计算脉搏波速并显示波形。实验结果表明:系统具有良好的人机交互界面,由该系统测得实验室一成员的脉搏波波速平均值为10.344 m/s,而且标准差小于0.5,稳定性很高。

The arterial elasticity can be well reflected in arterial pulse wave velocity. Accurate measurement of arterial pulse wave velocity can be of great help to prevent and treat cardiovascular disease. A pulse wave velocity measurement system based on FPGA is designed. The system is composed of conditioning module, AD acquisition module and touchscreen control and display module. The FPGA core is eonfignrated by SOPC Builder which synchronously acquire two path pulse signals, and then calculate the pulse wave velocity and display the waveform. Experimental results show that the system has a good interactive interface. The average pulse wave velocity of a member of the laboratory measured is 10. 344 rn/s and the standard deviation of the pulse wave velocity is less than 0.5, the system has high stability.