【作者】 安康；

【导师】 刘红星；

【作者基本信息】 南京大学 ， 信号与信息处理， 2015， 硕士

【摘要】 胎儿心电监护仪对实时显示有较高要求,目前市场上相关设备的性能尚不能很好的满足临床胎儿实时监护的需求。本文面向胎儿心电实时监测开展了若干研究,具体工作如下:首先,在第二章研究了生物电采集芯片ADS1298的配置问题,归纳总结了其配置机制,给出了芯片用于普通心电采集时的具体配置方案,并对其性能进行了仿真,还基于ADS1298和单片机C8051F320搭建了一实际普通心电采集系统,对其配置的正确性进行了测试。论文第三章研究了基于DSP6678的实时监测快速原型系统的搭建,先综述了 DSP6678芯片、DSP6678EVM、基于SYS/BIOS实时操作系统的编程以及基于TCP/IP协议的网络通信的相关内容,在此基础上给出了搭建方案并完成了基本程序设计,并对实际搭建的原型系统进行了测试;结果显示,原型系统运行稳定,能够实时准确监视成人心电图。论文第四章研究了基于DSP6678原型系统对信号进行常见实时信号处理的实现方法,首先基于DSPLIB编写单核程序实现了心电常见干扰信号的滤除处理,经实际测试,DSP处理结果与仿真结果基本一致;接下来对DSP6678的多核处理功能进行了研究,编写了多核处理程序,经测试,实现了 8核DSP对8路心电信号的多核实时处理,并在上位机上实时显示了处理后的心电波形。最后,论文在第五章给出了全文工作的总结,介绍了研究工作存在的一些不足,并对下一步工作进行了展望。更多还原

【Abstract】 FECG monitoring instrument has high requirements of real-time characteristics,and the performance of the current FECG monitoring equipments on market cannot meet the actual clinical needs.In this paper,it is carried out some research work for the FECG real-time monitoring system,as follows:First,the second chapter studies how to configure the bioelectricity acquisition chip ADS 1298.After summarizing its configuration mechanism,the paper puts forward a kind of specific configuration scheme that is used to acquire normal ECG and its performance is simulated.We also build a real common ECG acquisition system that is based on ADS 1298 and MCU C8051F320 to test the correctness of its configuration.The third chapter studies the construction of rapid prototyping real-time monitoring system based on DSP6678.After summarizing the DSP6678 chip,DSP6678EVM,SYS/BIOS based real-time operating system programming and TCP/IP network communication,the building plan and the related basic programing are designed,and the actual built prototype system was tested,showing that the prototype system runs stably,being able to real-time monitor adults ECG accurately.The fourth chapter studies the common real-time signal processing with the implemented prototype system of DSP6678.First,the program with a single-core is achieved to filter out common interfere in ECG signal,and it is found that the tested DSP processing results are as accurate as the simulation results;then,the programming with the DSP6678 multi-core processing is studed,achieving 8-channel ECG signals real-time processing with 8 cores,and displaying the ecg waveform processed on the upper machine.Finally,the fifth chapter summarizes the full paper,including some disadvantages in research and prospects for further work.更多还原