基于数字信号处理技术的新型心电图自动分析系统

A Digital Signal Processor based New ECG Automatic Analysis System.

目的开发新型的数字心电图自动分析系统 ,实现对多导联同步心电图的实时快速处理和高质量的分析。方法 1 )采用单片机 89C5 5与基于数字信号处理技术 (DSP)处理器TMS32 0F2 0 6相结合的双CPU结构 ,将单片机强大的控制功能与DSP处理器的快速处理功能相结合 ;2 )采用DSP软件实现简单整系数快速滤波算法 ,实现心电图参数的自动计算算法。结果该系统设计原理合理 ,全面测试后已用于所研制的心电图自动分析仪中。结论为了在多导同步数字心电图机中实现实时处理和高速计算 ,必须采用先进的硬件资源 (DSP技术 ) 。

Objective To develop a new digital ECG (electrocardiogram) automatic analysis system with high sampling rate , powerful real time processing and analysis ability for use in Multi channel Synchronization ECG. Method 1)A hardware structure of double CPU based on Microprocessor (MPU) 89C55 and Digital Signal Processor (DSP) TMS320F206 was used to combine the powerful control ability of MCS51 with DSP′s fast computation ability. 2)Fast simple integer coefficient filter method was used for automatic calculation algorithms of the ECG parameters. Result The system′s design principle was discussed. The system was successfully tested and used in the ECG automatic analysis instrument.Conclusion In order to realize real time processing and calculation in Multi channel Synchronization ECG Machine, good hardware resource, use of the DSP technology, considerable software algorithms and fast digital filtering method are all necessary.