基于ARM、蓝牙通信的心电采集系统的设计
发布时间：2018-10-04 18:32
【摘要】：论文针对现代医疗的新要求，研制了一套适用于远程急救或家庭远程监护的基于嵌入式处理器LPC2290的心电无线传输系统。 系统采用嵌入式MCU LPC2290，通过前置放大电路采集心电信号；外扩FLASH数据存储器和液晶显示器，对心电数据进行保存和显示；根据蓝牙技术携带方便、应用灵活、适于短距离无线通信技术的优点，系统采用蓝牙接口与PC进行数据通信。 论文主要内容包括心电前置采集电路设计、液晶调试、蓝牙通信设计、心电自适应滤波和特征识别五个主要部分。首先从性能指标角度分析设计了系统的软硬件总体结构，采用分模块设计思想；其次分模块研究了系统各个软硬件功能的具体实现；最后研究了心电自适应滤波处理、特征识别、蓝牙通信，这三部分是本文的研究重点。其中心电自适应滤波处理利用LMS算法和FIR滤波器实现了50Hz工频、基线漂移的滤除，，并对滤除干扰后的心电信号进行了QRS波群的识别。在扩频通信基础上分析了蓝牙的跳频系统和协议的体系结构，使用ROK101008在HCI UART传输层上设计了蓝牙HCI通信流程。 论文最后对系统的软硬件进行了综合调试，给出了液晶模块RT12864M的汉字显示和上位机VC++6.0中心电信号波形的显示。论文的研究取得了预期的成果。
[Abstract]:In order to meet the new requirements of modern medicine, a wireless ECG transmission system based on embedded processor LPC2290 is developed, which is suitable for remote first aid or home remote monitoring. The system adopts embedded MCU LPC2290, to collect ECG signal through preamplifier circuit; expandable FLASH data memory and liquid crystal display to save and display ECG data; convenient to carry according to Bluetooth technology, flexible in application. It is suitable for short-range wireless communication technology. Bluetooth interface is used for data communication with PC. The main contents of this paper include the design of ECG preacquisition circuit, LCD debugging, Bluetooth communication design, ECG adaptive filtering and feature recognition. Firstly, the overall structure of software and hardware of the system is analyzed and designed from the point of view of performance index, and the idea of sub-module design is adopted. Secondly, the realization of each function of hardware and software of the system is studied. Finally, the adaptive filtering of ECG is studied. Feature recognition, Bluetooth communication, these three parts are the focus of this paper. The ECG adaptive filtering process uses LMS algorithm and FIR filter to filter out the 50Hz power frequency and baseline drift, and the ECG signal after filtering interference is recognized by QRS wave group. On the basis of spread spectrum communication, the architecture of frequency hopping system and protocol of Bluetooth is analyzed, and Bluetooth HCI communication flow is designed on HCI UART transport layer with ROK101008. Finally, the hardware and software of the system are comprehensively debugged, and the display of Chinese character of RT12864M module and the waveform of VC 6.0 center signal of host computer are given. The research of this paper has achieved the expected results.
【学位授予单位】：西北工业大学
【学位级别】：硕士
【学位授予年份】：2007
【分类号】：TH772.2
本文编号：2251435
[Abstract]:In order to meet the new requirements of modern medicine, a wireless ECG transmission system based on embedded processor LPC2290 is developed, which is suitable for remote first aid or home remote monitoring. The system adopts embedded MCU LPC2290, to collect ECG signal through preamplifier circuit; expandable FLASH data memory and liquid crystal display to save and display ECG data; convenient to carry according to Bluetooth technology, flexible in application. It is suitable for short-range wireless communication technology. Bluetooth interface is used for data communication with PC. The main contents of this paper include the design of ECG preacquisition circuit, LCD debugging, Bluetooth communication design, ECG adaptive filtering and feature recognition. Firstly, the overall structure of software and hardware of the system is analyzed and designed from the point of view of performance index, and the idea of sub-module design is adopted. Secondly, the realization of each function of hardware and software of the system is studied. Finally, the adaptive filtering of ECG is studied. Feature recognition, Bluetooth communication, these three parts are the focus of this paper. The ECG adaptive filtering process uses LMS algorithm and FIR filter to filter out the 50Hz power frequency and baseline drift, and the ECG signal after filtering interference is recognized by QRS wave group. On the basis of spread spectrum communication, the architecture of frequency hopping system and protocol of Bluetooth is analyzed, and Bluetooth HCI communication flow is designed on HCI UART transport layer with ROK101008. Finally, the hardware and software of the system are comprehensively debugged, and the display of Chinese character of RT12864M module and the waveform of VC 6.0 center signal of host computer are given. The research of this paper has achieved the expected results.
【学位授予单位】：西北工业大学
【学位级别】：硕士
【学位授予年份】：2007
【分类号】：TH772.2
【引证文献】
相关会议论文 前1条
1 齐江涛;张书慧;于英杰;徐岩;;基于蓝牙技术的变量施肥机速度采集系统设计[A];走中国特色农业机械化道路——中国农业机械学会2008年学术年会论文集（下册）[C];2008年
相关硕士学位论文 前4条
1 齐江涛;蓝牙技术在变量施肥中的应用研究[D];吉林大学;2008年
2 苏丽敏;基于ARM的心电远程监护终端的设计[D];郑州大学;2009年
3 吴专科;智能家居中央控制平台的分析与设计[D];南昌大学;2010年
4 张海进;基于嵌入式的个人健康监护系统的研究与开发[D];电子科技大学;2012年
本文编号：2251435
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