【作者】 王峰；

【导师】 孟哲；

【作者基本信息】 武汉理工大学 ， 信号与信息处理， 2006， 硕士

【摘要】 随着社会生活节奏加快、人口逐渐老龄化,心血管疾病已经成为严重威胁人类健康和生命的主要疾病,而且此类疾病往往具有突发性,如果不能及时发现并进行治疗将会产生非常严重的后果。心电监护仪是此类疾病重要的检测手段,它对于保障患者生命安全降低患者死亡率有着十分重要的意义。目前使用的心电仪主要有三大类:1) 大型多功能心电仪,缺点在于无法在医院以外的地方使用;2)具有大容量存储器的便携式监护心电仪,它的缺点在于存储器容量有限无法长时间监控。3) 家用网络心电监护仪,缺点在于它限制了患者的自由活动。针对目前心电仪系统存在的缺陷,本文将设计一种在社区范围内使用的基于无线便携式心电采集器+家庭智能终端+Internet+医疗中心数据库组成的远程实时交互式心电状态监控系统。通过这套系统医生可以随时连续的监控患者的心电状态,同时可以发出各种命令修改便携心电采集器的工作状态以及向患者和家属发出警告信息等。本论文主要做以下研究: 无线便携式心电采集器设计研究内容:在研究生物电信号特点的基础上,选择恰当参数的电子器件设计心电采集器前端放大模块,完成微弱信号的放大;研究滤波理论,依据生物电信号的频率范围设计硬件滤波电路和AD转换电路;通过分析信号输入、电源、接地等对便携采集器造成干扰的因素,采取相应的消除措施提高系统的可靠性。模拟实际心电信号的基线漂移线,设计快速中值滤波算法并分析该算法对基线漂移处理结果的特点;研究天线设计理论,配合单片射频芯片,设计微带环形天线以便最大限度的利用发射功率、提高发射距离。研究无线数据发送协议。研究无线便携心电仪的软件结构设计和软件的开发与调试。 家庭智能终端设计研究内容:嵌入式系统特点及其硬件实现。Linux操作系统的引导加载原理与实现;Ethernet网接口设计及其Linux下驱动的实现;研究Linux下的Socket编程,使用TCP/IP协议将接收到的无线数据通过智能终端的网络接口经过Modem发送到医疗中心数据服务器上。 医疗中心数据服务设计研究内容:心电数据的图形化显示算法设计及编程;交互式心电数据库的设计方案。 通过上述工作完成样机研制为下一步产品开发和软件功能扩充打好基础。更多还原

【Abstract】 With the accelerated pace of social life and the gradual ageing of the population, cardiovascular disease has become a major disease that seriously threat to people’s health and life. And such diseases often have unexpected features. If it can’t be timely detected and treated, it will has very serious consequence. Electrocardiogram monitor is an important means to detect disease. It means much to guarantee the safety of patients and reduce the heart patient’s mortality rate. Currently there are three types of ECG monitor: l)Large multifunctional ECG monitor, but it can not be used outside hospital;2) The portable ECG monitor who has high-capacity memory storage can not long time monitoring and its capability is limited.3) Domestic network ECG monitor that limit patient’s free activity. Aim directly at ECG system’s flaws, we will design a kind of portable Long-distance real-time interactive ECG monitor system that is suitable for using in the community, and it bases on wireless portable heart electricity picker, family intelligent terminal, internet and database of the medical center., Doctor may consecutively monitor patient’s heart electricity condition any time through this set of system. And it can send out each kind of order to revise the heart electricity picker’s working mode and send out the warning information to the patient and its family member. The paper mainly does below studies:Wireless portable heart electricity picker’s research content: On the basis of bioelectricity signal characteristic, we will select appropriate parameter electron device to design heart electricity picker and amplify weak signal. Research filter theory and design hardware filter circuit and AD transition on the basis of bioelectricity signal’s frequency range. Through analyze the factor that signal input, power supply, grounding interfere to portable picker, we’ll take the corresponding elimination measure to enhances system’s reliability. Simulate practice electrocardiosignal’s baseline driftline to design tacho-midvalue filtering algorithm and analyze the characteristic that the algorithm deal to the baseline drift. Study antenna’s design theory and match one chip radio frequency chip to design microstripring form antennae order utmost utilize emanation power and raise emanation distance. Develop wireless data transmit protocol. Study wireless portable electrocardiogram equipment’s software structure design, development and debug.Family intelligent terminal’s design content: embedded system’s characteristic and hardware design. Linux operating system’s bootstrap and load.Ethernet interface design and implement drive under Linux. Study Socket programming under Linux, use TCP/IP protocol through intelligent terminal’s network interface send out wireless data through Modem to medical center data server.Medical center data’s service design content: electrocardio-data’s spherical display algorithm design and programming, interactive electrocardio-database’s design laying(include real-time display, playback display, preliminary data analysis and long range family intelligent terminal and heart electricity picker interactive and soon.Through above-mentioned work complete proto’s initial development and then do the groundwork for next product development and software’s function expansion.更多还原