基于USB Hub的多参数生理信号检测系统

摘要

A multi-parameter physiologic signal detecting system based on the USB Hub is developed for the requirement of individualization physiological parameters examining function. Physiological signals such as PCG,ECG, etc, are collected as required through the sensors by the modularized physiological signal detection circuits,and connected to the USB Hub module with the funciton of electrical safety seperation for medical equipment via USB. The signals are transferred to PC from the USB Hub also by means of USB, and analyzed and displayed on the PG real time. This research has great significant meaning for the high reliability, easy service, flexibility and expansibility of the medical instruments.%针对个体化生理参数检测功能的需求,基于USB Hub架构,研制了一种多参数生理信号检测系统.心音、心电等生理信号由传感器采集,经过模块化生理信号检测电路并通过USB总线接口与具有医疗仪器电气安全隔离功能的USB Hub模块连接,然后由USB总线将生理信号传输到PC机,对信号进行实时显示与分析处理.该研究对于实现医疗仪器的高可靠性、易维护性、以及灵活扩展性具有重要的意义.