中文摘要：

设计一套便携式智能心肺音检测系统,为心血管疾病和呼吸道疾病患者的随时随地的监测与诊断提供技术支撑。针对心音和肺音很难分离的问题,以嵌入式单片机为基础设计了一款便携式心肺音采集和分析系统;该系统通过便携式系统中SD卡将数据以文本格式长期采集、保存,并TFT屏实时显示以及耳机播放等。该系统采集了主动瓣区、肺动脉瓣区、二尖瓣区以及三尖瓣区的心音信号和肺尖、支气管和背部呼吸音信号并提取了其包络,说明该记录仪的信号准确性高、可靠性强。

英文摘要：

A portable heart-lung sound detection intelligent system was designed to provide technical support for the monitoring and diagnosis of cardiovascular disease and respiratory disease anywhere in patients. In this paper, in order to solve the problem of difficultly separating the heart sounds or lung problems from the mixed signals, the SCM embedded systems was used for a portable cardiopulmonary sound acquisition and analysis system; The system will collect long-term data in text format, saved on the SD card and display TFT screen on real-time and playback at headphone. The system collects the active zone valve, pulmonary valve area, heart sound signals and apex, bronchial breath sounds signals and back mitral and tricuspid area and extracted the envelope, indicating that the logger high signal accuracy and reliability.