一種頭戴式血壓測量改進方法的研究
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本文選題:頭戴式血壓測量 切入點:脈搏波傳導(dǎo)時間 出處:《電子技術(shù)應(yīng)用》2016年11期 論文類型:期刊論文
【摘要】:為了提高無創(chuàng)血壓連續(xù)測量的便捷性和準確度,提出了一種基于脈搏波傳導(dǎo)時間(PTT)的頭戴式血壓測量方法,該方法將光電容積脈搏波(PPG)信號和心電(ECG)信號的采集集中在頭部,將PPG信號一階微分最大點與ECG信號R波峰的時間差值作為脈搏波傳導(dǎo)時間,并在血壓的計算中加入了卡爾曼濾波器。實驗結(jié)果表明,利用改進方法計算出的血壓值平均誤差率在5%以內(nèi),數(shù)據(jù)誤差均在10 mm Hg以內(nèi),能夠滿足連續(xù)血壓測量誤差的要求;與傳統(tǒng)方法相比,穩(wěn)定性更好,誤差率更小,最大誤差更小。
[Abstract]:In order to improve the convenience and accuracy of continuous noninvasive blood pressure measurement, a headwear blood pressure measurement method based on pulse wave conduction time (PTT) is proposed. The method concentrates the collection of PPG signal and ECG signal on the head. The time difference between the first order differential maximum point of PPG signal and the R wave peak of ECG signal is taken as the pulse wave conduction time, and Kalman filter is added to the calculation of blood pressure. The experimental results show that, The average error rate of blood pressure value calculated by the improved method is less than 5% and the data error is less than 10 mm Hg, which can meet the requirement of continuous blood pressure measurement error, and the stability is better and the error rate is smaller than the traditional method. The maximum error is smaller.
【作者單位】: 重慶郵電大學(xué);
【基金】:國家自然科學(xué)基金資助項目(61471075)
【分類號】:R443.5
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1 吳倩倩;葉夏;王文富;;介紹一套頭戴式嬰幼兒體溫監(jiān)測預(yù)警裝置[J];護理研究;2014年23期
,本文編號:1649512
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