8098单片机R-R间期心率变异性检测系统

A device for analysis of heart rate variability(HRV)of R-R interval based on 8098 microprocessor

心率变异性检测系统是一个无创、定量评估迷走神经和交感神经活性的检测系统。系统由心电放大器、A／D、单片机和PP40绘图仪等组成。系统软件由PL／M高级语言和ASM96汇编语言混合编写。系统提供了时域、频域分析的多项指标，绘出HRV功率谱图，并初步用于临床。

A device has been develped for heart rate variability (HRV) analysis,which can inspect the activity of vagal nerve and sympathic nerve imvasively and quantatively.The system hardware is composed of a 8098 single-chip microcomputer, ECG amplifi-er, 10 bit A/D transformer and PP40 plotter. The software is complied by PL/M lan-guage and ASM96 asssembly language. The system provide several indexs of time－do-main and frequency－domain and it has been put into clinical use initially.