随着现代通信技术，特别是因特网技术的发展，远程医疗正步入快速的发展阶段，已经成为世界各国争相发展的一项高新技术。远程医疗作为一种全新的医疗模式将改变人们的生活。在远程医疗中，生理信号的远程监测是一个相当重要的内容。本文提出了一种技术先进的基于嵌入式Web服务器的远程生理参数检测系统，还将先进的Web技术、多微处理器嵌入式系统设计理念应用于远程医学数字化仪器设计。
整个远程生理参数检测系统采用的B/S架构。生理参数检测仪是整个远程医疗系统中最重要的终端设备，它能够实时采集心电、心音、颈动脉波和血压等常用的生理信号，并能够进行波形的实时显示、生理数据的实时处理和远程传输。监护中心还可以通过因特网访问生理参数检测仪，从而实现远程诊断和监护。
本文具体讲述了生理参数检测仪的具体实现过程。远程生理参数检测仪由传感器、信号预处理电路、A/D转换器、数字信号处理模块、32位主机模块和网络接口等组成。该仪器采用了DSP微处理器和32位嵌入式微处理器组成的多处理器结构，满足了数据的采集、显示和传输的实时性的要求；把Web技术应用于嵌入式设备之中，为嵌入式医疗设备的远程控制和远程通信提供了一种解决方案；该仪器结构紧凑、轻巧美观，便于携带，具有自动报警和自动诊断的功能。 英语专业毕业设计----德维在线 www.devay.net
远程生理参数检测仪内置嵌入Web服务器，负责完成远程控制命令的响应，并进行实时的网络数据传输。以嵌入式实时操作系统μC/OS-II作为应用软件的开发和运行的平台，具有良好的实时性，大大提高了嵌入式系统开发的效率，给系统的软件维护和功能扩展带来了方便。
本文还对生理信号的分析和处理作了一些研究。采用了自适应滤波算法对工频干扰进行行之有效的滤波处理。最后还分析了信号奇异点(R峰点)与其小波变换模极大值对的零交叉点的关系，采用了小波分析方法和一系列的策略来检测QRS波，大大提高了QRS波的正确检测率。
关键词：嵌入式Web服务器；远程医疗；医疗仪器；嵌入式系统；网络。
Abstract
With the developing of modern communication technology, especially Internet technology, telemedicine has already stepped into a rapid developing phase, and has already became a high and new technology that all countries want to develop. Telemedicine, as a bran-new medical treatment mode, will change the lifeway of the people. During the telemedicine, long-distance physiological signals detecting is a very important part. In this thesis, we scheme a remote physiological signal detecting system based on embedded Web server, and we apply advanced Web technology and multiprocessor embedded system to the design of modern telemedicine digital medical instrument.
英语毕业论文----德维在线 www.devay.net
The remote physiological signals detecting system is based on B/S model. The detector is the most important medical terminal instrument in the telemedicine system, It is used to collect the physiological signals, such as ECG(electrocardiogram), PCG(phonocardiogram), CAP(carotid pulse) and blood pressure, real time dispay the waves and real time process and remote transmit the data. The medical ward center also can access to the remote physiological signal detector, and realize remote on line diagnose.
In this thesis, the design process of the remote physiological signals detector is presented. The detector is composed of the sensors, the signals pretreatment circuit, A/D converter, DSP(digital signal process) module and 32-bit host module. It is multiprocessor architecture made of DSP microprocessor and 32-bit embedded microprocessor. It satisfy the demand of real time physiological signal collection, display and transmission; The Web technology is applied to the embedded instrument, it offers a wonderful way of remote control and communication of embedded medical instrument; The detector has a compact structure so that it is small and exquisite and easy to take; It has the function of autoalarm and automatic diagnosis. 机械毕业论文----德维在线 www.devay.net
The Web server planted in the detector complete the response of the remote control command, and let the physiological data transmit to the medical ward center through Internet. Embedded real-time operation system μC/OS-II acts as the flatform of the application software developing and running, then it has the advantage of the real time capability; the efficiency of developing embedded system is improved; it is easy to do software maintenance and expand function.
The physiological signal analysis and processing are also studied in the thesis. A self-adapting filter can remove line frequency interference from ECG efficiently. At last, The relationship between the singular points(R point) and wavelet transform modulus maxima is also analyzed. Wavelet transform and some strategies are used to detect the QRS complex signal, the QRS detection rate is increased.
Keywords: Embedded Web Server；Telemedicine；Medical Instrument；Embedded System；Network.