基于Cortex-M3与FPGA的无线生理参数监测仪的设计

设计了以Cortex-M3与FPGA为核心的无线生理参数监测仪,可以实时监测人体运动状态下的重要生理参数。文中介绍了监测仪的测量原理,和以心电信号提取为主的系统采集模块、无线电信号传输和中继器等硬件电路的设计;在该硬件系统中,采用NRF24L01无线芯片完成自定义协议数据通信,中继器则采用Cyclone III的FPGA实现对信号预处理及显示功能,同时控制Cy68013经USB与上位机通信;最后进行了对血氧饱和度的实时监测和系统性能的测试,验证了监测仪的可行性。

Design of Wireless Physiological Parameters Monitor Based on Cortex-M3 and FPGA

Wireless physiological parameters monitoring could real-time monitor the important physiological indices under the human motion state. The paper mainly presents measuring principle and hardware circuits design based on Cortex-M3 and FPGA for the wireless physiological parameters monitor. It includes data sampling of ECG signals, wire- less signal transmission and the repeaters circuit design. In the system, it uses the NRF24L01 chip to realize the protocol of data communication, Cyclone II! FPGA for the signal preprocessing and display function and Cy68013 for the commu- nication with PC by USB. In the end, the experiments on real-time monitoring of blood oxygen saturation and system per- formance have been done.