基于SOPC的復(fù)合式生理信號(hào)檢測(cè)系統(tǒng)設(shè)計(jì)
發(fā)布時(shí)間:2018-04-29 19:28
本文選題:片上可編程系統(tǒng) + 表面肌電信號(hào) ; 參考:《傳感技術(shù)學(xué)報(bào)》2014年04期
【摘要】:設(shè)計(jì)完成了一種多生物電信號(hào)采集能力并能完成生物電信號(hào)模式識(shí)別和輔助診斷的復(fù)合式生物電信號(hào)檢測(cè)系統(tǒng)。系統(tǒng)通過(guò)具備雙通道的低噪聲高共模抑制比的前置采集放大電路,可實(shí)現(xiàn)心電信號(hào)和表面肌電信號(hào)兩種體表生物電信號(hào)的檢測(cè)。通過(guò)FPGA硬件化實(shí)現(xiàn)的小波分解模塊和在NiosⅡ軟核中實(shí)現(xiàn)的FFT和BP神經(jīng)網(wǎng)絡(luò)算法,可以完成對(duì)采集到的心電信號(hào)心率監(jiān)測(cè)、QRS波群的檢測(cè)和ST段形態(tài)識(shí)別反饋監(jiān)護(hù)者的健康信息;并通過(guò)提取表面肌電信號(hào)活躍段數(shù)據(jù)和時(shí)頻域參數(shù)為運(yùn)動(dòng)性肌肉疲勞評(píng)估提供參考。系統(tǒng)通過(guò)LCD屏、音頻輸出和SD卡存儲(chǔ)能夠完成對(duì)信號(hào)實(shí)時(shí)波形和監(jiān)護(hù)參數(shù)顯示、報(bào)警輸出和長(zhǎng)時(shí)間監(jiān)護(hù)數(shù)據(jù)的存儲(chǔ)。
[Abstract]:A composite bioelectric signal detection system with multi-bioelectric signal acquisition ability and bioelectric signal pattern recognition and auxiliary diagnosis is designed. The system can realize the detection of electrocardiogram (ECG) and surface electromyography (EMG) signals by the preacquisition and amplification circuit with low noise and high common-mode rejection ratio. The wavelet decomposition module implemented by FPGA and the FFT and BP neural network algorithms implemented in Nios 鈪,
本文編號(hào):1821252
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