本文選題：體表生物電 + 放大器�。� 參考：《天津大學(xué)》2012年碩士論文

【摘要】：體表生物電是生命活動(dòng)過(guò)程中生物體表產(chǎn)生的各種電位變化,包括腦電、肌電和心電等,含有重要的人體生理活動(dòng)和疾病信息,既可用于生命科學(xué)研究與醫(yī)學(xué)臨床診治,還可為人機(jī)接口等智能機(jī)械提供操控信號(hào)。目前多數(shù)體表生物電檢測(cè)為有線方式。但在一些特殊場(chǎng)合(如快速運(yùn)動(dòng)狀態(tài)下生理參數(shù)檢測(cè)、宇航員飛行訓(xùn)練中健康指標(biāo)監(jiān)測(cè))的體表生物電采集與傳輸必須擺脫電線束縛,改用無(wú)線發(fā)送與收取方式。與有線相比,無(wú)線采集系統(tǒng)具有靈活方便和有效減少工頻干擾的優(yōu)點(diǎn)。 本文設(shè)計(jì)并實(shí)現(xiàn)了一套體表生物電無(wú)線采集系統(tǒng)。系統(tǒng)由生物電信號(hào)拾取與放大濾波、無(wú)線傳輸和數(shù)據(jù)顯示與儲(chǔ)存三個(gè)單元組成。放大濾波單元運(yùn)用了高、低通濾波和50Hz陷波手段;無(wú)線傳輸采用MSP430f149單片機(jī)和nRF24L01無(wú)線模塊;用LabVIEW軟件實(shí)現(xiàn)信號(hào)的顯示和存儲(chǔ)。 為驗(yàn)證所設(shè)計(jì)系統(tǒng)的工作性能,在穩(wěn)態(tài)視覺(jué)誘發(fā)電位(Steady State Visual Evoked Potential,SSVEP)實(shí)驗(yàn)中,對(duì)照分析了本系統(tǒng)與北京中科新拓公司的生物電放大器同時(shí)采集頭皮同一部位的SSVEP信號(hào)。結(jié)果表明:兩組數(shù)據(jù)頻譜曲線起伏一致,相關(guān)系數(shù)為0.8352;兩組信號(hào)在δ、θ、α和β各個(gè)波段能量分布比重基本相同。此外,利用本系統(tǒng)采集所得心電信號(hào)均能正常顯示其中含有的P、QRS和T波特征;利用本系統(tǒng)采集所得肌肉從靜止到收縮時(shí)的肌電信號(hào),也能反映其極低頻至90Hz高頻的變化特征。 本文設(shè)計(jì)的體表生物電無(wú)線采集系統(tǒng)可以為特殊場(chǎng)合生理參數(shù)無(wú)線檢測(cè)或人機(jī)接口無(wú)線操控裝置的研發(fā)及應(yīng)用提供基本技術(shù)參考。
[Abstract]:Body surface bioelectricity is a variety of potential changes produced by the biological meter during life activities, including electroencephalogram, electromyography and electrocardiogram, which contains important human physiological activities and disease information. It can be used in life science research and medical clinical diagnosis and treatment, and can also provide control signals for intelligent machines, such as man-machine interface. Most of the body surface bioelectricity inspection is currently available. But in some special occasions, such as physical parameters detection in fast motion state and health index monitoring in astronaut's flight training, the collection and transmission of body surface bioelectricity must get rid of wire binding and switch to wireless transmission and collection. Compared with wired, the wireless acquisition system is flexible, convenient and effective to reduce the power frequency. The advantages of disturbing.
This paper designs and implements a set of body surface bioelectricity wireless acquisition system, which consists of three units: biologic signal pickup and amplification filter, wireless transmission and data display and storage. The amplifying filter unit uses high, low pass filtering and 50Hz trap means; wireless transmission uses MSP430f149 MCU and nRF24L01 wireless module; LabVIEW The software realizes the display and storage of the signal.
In order to verify the performance of the designed system, in the Steady State Visual Evoked Potential (SSVEP) experiment, the system and the bioelectric amplifier of Beijing Zhongke Xin Tuo company are used to collect the SSVEP signals of the same part of the scalp simultaneously. The results show that the two sets of data spectrum curves are in the same fluctuation, and the correlation system is related. The number of the signals in the two groups is basically the same in the Delta, theta, alpha and beta bands of the energy distribution. In addition, the ECG signals collected by this system can display the characteristics of P, QRS and T waves, and the muscle electrical signals of the muscle from rest to contraction can also reflect the changes in the high frequency to the high frequency of 90Hz from the system. Features.
The body surface bioelectricity wireless acquisition system designed in this paper can provide basic technical reference for the wireless detection of physiological parameters in special occasions or the development and application of man-machine interface wireless manipulating device.

【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：R318.0

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 羅志增;席旭剛;;一種表面肌電信號(hào)測(cè)試電路設(shè)計(jì)[J];測(cè)試技術(shù)學(xué)報(bào);2007年01期

2 胡巍;趙章琰;路知遠(yuǎn);陳香;;無(wú)線多通道表面肌電信號(hào)采集系統(tǒng)設(shè)計(jì)[J];電子測(cè)量與儀器學(xué)報(bào);2009年11期

3 仉尚航;張際新;鄭洋;趙寧;;基于磁阻傳感器的低功耗方向指示系統(tǒng)[J];電子器件;2009年06期

4 章葉駿;張崇巍;肖本賢;;基于MSP430F149單片機(jī)的語(yǔ)音無(wú)線傳輸系統(tǒng)[J];儀器儀表用戶;2008年03期

5 孫友明;黃秉揓;羅曉曙;;新型腦電信號(hào)放大檢測(cè)電路的設(shè)計(jì)[J];國(guó)外電子元器件;2006年09期

6 秦振華;夏斌;謝宏;楊文璐;;便攜式心電信號(hào)采集電路設(shè)計(jì)[J];電子設(shè)計(jì)工程;2010年08期

7 趙艷輝;趙修良;周超;沈堯欣;吳榮燕;劉麗艷;;基于LabVIEW的心電信號(hào)采集系統(tǒng)[J];電子設(shè)計(jì)工程;2011年05期

8 于敬玲;李威震;;單輸入雙輸出降壓型DC-DC電源設(shè)計(jì)[J];工業(yè)控制計(jì)算機(jī);2010年09期

9 姜，

本文編號(hào)：1838243