基于ARM的家用ECG检测设备的研究与设计

北京理工大学珠海学院2020届毕业设计AbstractThis paper introduces the design of ECG signal detection system,which uses ECGelectrode piece and three input shielded lead to collect human ECG signal by standard lead,and then processes the ECG signal by multi-stage amplification and filtering circuit module,gives the specific circuit design scheme,completes the relevant data test,and realizes theeffective output and display of ECG signal.In software,the collected data is filtered by digitalfilter,and the upper computer's real-time storage and display functions are realized byLabVIEW software.The developed ECG signal detection system has the characteristics offast response,reliable performance,convenient use and low cost.It can provide help for themajority of ordinary users and families in ECG monitoring and other weak signal acquisition.At present,the domestic electrocardiograph on the market is based on the simplificationof medical electrocardiograph.In order to reduce the volume,the complex functions andcomplex operations are simplified.Aiming at this situation,this paper designs a small homeECG instrument with the necessary functions and simple operation.The test results show that the instrument can accurately reflect the ECG waveform,andthe recognition rate of motion interference is more than 80%.It can effectively eliminate themotion interference and obtain ECG data.Keywords:weak signal;ECG signal;standard lead;filter amplification目录2