基于MSP430微控制器的心电信号采集系统设计

摘要

目的:设计一个具有高性能、低功耗特性的心电信号采集系统,以满足长时间监测患者生理状况的需求.方法:采用ADAS1000低功耗心电图模拟前端与MSP430F5529微控制器,利用串行外设接口总线实现模拟前端的配置以及心电数据的回读.结果:该系统可对正常活动状态下的患者做24 h动态心电监测,采集的数据准确可靠.结论:该系统实现了印制电路板的一体化集成,功耗低,可用于由电池供电的便携式应用(如穿戴式设备)中.%Objective To design a high performance and low power consumption ECG signal acquisition system which can meet the demand for long time monitoring of the physiological status of patients.Methods The prototype system utilized low power ECG analog front end ADAS1000 and MSP430F5529 microcontroller to achieve configuration of AFE and back-reading of ECG data by SPI bus. Results This system implemented 24-hour dynamic ECG monitoring of patients in active state, and the data acquired were accurate and reliable.Conclusion The system realizes PCB integration, low power consumption, and can be used for battery powered portable application such as wearable devices.