表面肌电检测与训练系统—移动终端设计

发布时间：2018-03-05 04:09

本文选题：表面肌电　切入点：ARM7　出处：《南京大学》2012年硕士论文　论文类型：学位论文

【摘要】：表面肌电是指收缩肌肉时产生的电信号,从人体皮肤表面测得。表面肌电能够反映人的生理状态信息,应用背景主要集中在康复医学和体育科学两大领域,具有很大的实用价值,例如应用在肌电控制假肢、肌电刺激治疗肌肉萎缩、诊断肌肉力量和肌肉疲劳等方面。随着社会经济的发展,人民的生活水平在不断地提高,科学技术在不断地进步,人们要求有更好的医疗器械。电子等相关科学技术在医疗器械方面的应用提高了医疗器械的性能,电子医疗保健产品变得小型化、智能化、信息化。医疗器械的功能越来越多,成本越来越低。许多疾病的检测和诊断都与电生理信号密切相关,国内外学者都在研究其相关算法与应用,研究前景广阔。本文设计一个表面肌电检测与训练系统的移动端,它能够在脱离电脑的情况下对表面肌电信号进行实时采集、显示、储存等。它能够通过无线WIFI(wireless fidelity)和有线USB(Universal Serial Bus)将采集到的肌电信号实时地传输到电脑上。某些时候表面肌电需要移动测量,所以设计一个可移动的小型终端是很有必要的。系统设计分为硬件部分设计和软件部分设计。系统硬件部分设计分为模拟部分和数字部分：模拟部分有前端采集放大器、主放大器,模拟信号通过转换成16位AD(Analog Digital)传输到数字板；数字部分电路采用以ARM7为核心的多功能板。医疗器械关系到人民群众的生命健康和安全,硬件部分设计关注了电压隔离等方面内容。论文描述高质量的供电电源的设计,高质量的供电电源能提高采样质量。论文描述放大电路的设计,电路的设计根据表面肌电的特点采用合适的滤波器。论文分析几种硬件设备的差别并为系统选择合适的硬件。系统软件部分设计采用UCOS(UC Operating System)和UCGUI(UC GraphicalUser Interface),有采集、触摸屏显示、储存、回放记录、校正放大倍数等模块。触摸屏和全键盘拼音输入法使得机器操作方便简单,人机互动界面友好。采集功能模块是移动终端系统的重要部分,它采用SPI接口控制AD采样,数字信号的滤波采用梳状滤波器,采集功能模块的界面使用UCGUI对话框。论文分析嵌入式拼音输入法并设计输入法界面。论文分析USB驱动程序并设计USB状态机。测试结果表明该移动终端性能好,操作方便,体积小,成本低,市场前景好。该移动终端不仅可以应用到三甲医院,还可以广泛普及到社区医院,甚至普及到家庭,使用户可以更方便地以更低成本获得康复治疗,社会效益重大,经济效益显著。最后对论文进行总结。该移动终端存在很多不足的地方,移动终端使用的无线网络是WIFI网络,所以该移动终端的移动范围不够大。论文最后提出解决思路,该设备可以通过移动通信网络传输测量数据,这样就提高了移动终端的信息化水平。移动医疗发展前景广阔。
[Abstract]:Surface electromyography refers to electrical signals generated when muscles are contracted, measured from human skin surfaces. Surface electromyography can reflect human physiological state information. The application background is mainly in the two major fields of rehabilitation medicine and sports science. Of great practical value, for example, in the control of prostheses by electromyography, in the treatment of muscular atrophy by myoelectric stimulation, in the diagnosis of muscle strength and muscle fatigue, etc. With the development of society and economy, the standard of living of the people continues to improve. With the development of science and technology, people demand better medical devices. The application of electronic science and technology in medical devices has improved the performance of medical devices, and electronic medical care products have become miniaturized and intelligent. The function of medical device is more and more and the cost is lower and lower. The detection and diagnosis of many diseases are closely related to the electrophysiological signal, and scholars at home and abroad are studying its related algorithm and application, and the research prospect is broad. In this paper, a moving end of surface electromyography detection and training system is designed, which can collect and display surface EMG signals in real time without computer. It can transmit the collected EMG signals to the computer in real time via wireless WIFI(wireless fiduciity) and wired USB(Universal Serial Bus. at some times, the surface electromyography needs moving measurement, so it is necessary to design a small mobile terminal. The system design is divided into hardware part design and software part design. The hardware part of the system is divided into analog part and digital part: the analog part has a front-end acquisition amplifier, a main amplifier, and the analog signal is transmitted to the digital board by converting the analog signal into a 16-bit AD(Analog digital board. The digital circuit adopts the multifunctional board with ARM7 as the core. The medical device is related to the people's life, health and safety, and the hardware design pays close attention to the voltage isolation and so on. The paper describes the design of the high quality power supply. The high quality power supply can improve the sampling quality. This paper describes the design of amplifying circuit, which adopts the appropriate filter according to the characteristics of surface electromyography. The paper analyzes the differences of several kinds of hardware devices and selects the appropriate hardware for the system. The software design of the system adopts UCOS(UC Operating system and UCGUI(UC GraphicalUser Interface, and has modules such as acquisition, touch screen display, storage, playback record, correction of magnification, etc. The touch screen and the whole keyboard Pinyin input method make the operation of the machine convenient and simple. The acquisition function module is an important part of the mobile terminal system. It uses SPI interface to control AD sampling, and the digital signal filter adopts comb filter. The interface of the collection function module uses UCGUI dialog box. The paper analyzes the embedded Pinyin input method and designs the input method interface. The paper analyzes the USB driver and designs the USB state machine. The test results show that the mobile terminal has good performance, convenient operation, small size, low cost and good market prospect. The mobile terminal can be applied not only to the third Class A Hospital, but also to community hospitals and even families. It makes it more convenient for users to obtain rehabilitation treatment at lower cost, which has great social benefits and remarkable economic benefits. Finally, the paper summarizes the mobile terminal. There are many shortcomings in the mobile terminal. The wireless network used by the mobile terminal is WIFI network, so the mobile range of the mobile terminal is not large enough. This device can transmit the measurement data through the mobile communication network, thus improving the level of information of mobile terminal, and the development prospect of mobile medical treatment is broad.
【学位授予单位】：南京大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：R318.6;TN911.6

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