基于嵌入式微机的便携心电监护仪设计  

Development of a Portable Ambulatory ECG Monitor Based on Embedded Microprocessor Unit

作　　者：王大雄[1] 王国钧[1] 

机构地区：[1]湖州师范学院信息工程学院,浙江湖州313000

出　　处：《航天医学与医学工程》2005年第3期196-200,共5页Space Medicine & Medical Engineering

摘　　要：目的研制一种实用的低功耗嵌入式便携心电监护仪。方法以嵌入式微处理器RCACDP1802为核心,设计了硬件系统和控制软件,并嵌入了心电波形特征提取算法、心电数据压缩算法、心律失常分析算法,在硬件和软件设计时均考虑了降低功耗。结果该仪器功耗低,体积小,重量轻,智能化程度高。它能连续48h实时监护患者的心电信号,实时分析10余种心律失常并存贮心律失常时的压缩心电数据。在需要时可将存贮的心电数据于串行接口输出供医生回顾分析。结论该监护仪达到设计要求,实用性高。Objective To develop a new kind of portable ambulatory ECG monitor. Method The hardware and software were designed based on RCA-CDP1802. New methods of ECG data compression and feature extraction of QRS complexes were applied to software design. A model for automatic arrhythmia analysis was established for real-time ambulatory ECG Data analysis. Compact, low power consumption and low cost were emphasized in the hardware design. Result This compact and light-weight monitor with low power consumption and high intelligence was capable of real-time monitoring arrhythmia for more than 48 h. More than ten types of arrhythmia could be detected, only the compressed abnormal ECG data was recorded and could be transmitted to the host if required. Conclusion The monitor meets the design requirements and can be used for ambulatory ECG monitoring.

关 键 词：嵌入式微处理器 心电监护仪 低功耗 心律失常 

分 类 号：R318.6[医药卫生—生物医学工程] TP391[医药卫生—基础医学]