| Cardiovascular disease is one of the most dangerous diseases that threaten people’s life.The diagnose of cardiovascular disease depends on ECG.For the limitation of the platform,the electrocardiograph can’t satisfy the implementation of more ECG advanced-analysis functions,so it brings ECG workstation in the mode of ECG acquisition card plus PC.The imported ECG workstation products are expensive,and the domestic products’ sampling precision is not enough,so it is significant to develop the high-precision domestic ECG workstations.Based on the demands of academic research and market,the dissertation researches on the development of an ECG workstation system based on LabVIEW.This system is constructed by 24 bits high-precision ECG acquisition card and a computer with the ECG workstation software.It implements the function of 12-lead synchronous ECG signal acquisition,analysis of 12-lead ECG signal and analysis of HRV.It mainly includes the following works:(1)The function of 12-lead synchronous ECG signal acquisition composes of USB communication module,data reconstruction module,8 channels-12 leads transformation and waveform displaying module,digital filtering module,data storing module,real-time heart rate calculating module and ECG waveform playback module.(2)The function of 12-lead ECG analysis composes of ECG data reading module,ECG signals pre-processing module,waveform displaying module,ECG feature points detecting module,ECG characteristic parameters calculating and displaying module,diagnose opinion module and ECG diagnose reports module.(3)The function of HRV analysis composes of waveform displaying,HRV characteristic parameters calculating and displaying module and R-R interval-heart beats trend diagram module.The testing results show that this system can not only acquire and display ECG signals normally,but also detect the feature components and calculate the HRV characteristic parameters correctly.Meanwhile,the other functions of the system can also work well. |
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