本文選題：呼吸　切入點(diǎn)：非接觸　出處：《燕山大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：進(jìn)行睡眠時(shí)呼吸檢測(cè)對(duì)預(yù)防睡眠呼吸暫停綜合癥以及監(jiān)測(cè)人體睡眠時(shí)的生命特征有著積極的意義。接觸式的檢測(cè)方法對(duì)人體的束縛性大，長(zhǎng)時(shí)間的接觸式呼吸檢測(cè)會(huì)影響人的睡眠。針對(duì)上述問題，本文提出了一種基于電容調(diào)頻原理的非接觸檢測(cè)呼吸的方法，在保證測(cè)量結(jié)果準(zhǔn)確的前提下避免了電極片或傳感器對(duì)人體的限制，提高了呼吸檢測(cè)過程的舒適性；利用嵌入式系統(tǒng)進(jìn)行呼吸信號(hào)的采集與處理可以減小采集單元的體積與成本；采用藍(lán)牙技術(shù)進(jìn)行呼吸信號(hào)的無線傳輸可以擴(kuò)展本地采集系統(tǒng)的外部顯示功能，使診斷醫(yī)生或測(cè)試者能夠?qū)崟r(shí)對(duì)呼吸狀況進(jìn)行觀察。本文主要研究?jī)?nèi)容如下： (1)根據(jù)人體呼吸過程中的胸廓變化，利用檢測(cè)電極將胸廓變化轉(zhuǎn)換為電容變化并對(duì)振蕩電路進(jìn)行調(diào)頻實(shí)現(xiàn)呼吸信號(hào)的非接觸測(cè)量。采用鑒頻電路與濾波電路，從調(diào)頻信號(hào)中解調(diào)出呼吸信號(hào)并進(jìn)行放大與濾波，，實(shí)現(xiàn)呼吸信號(hào)的采集和處理。 (2)以ARM處理器與Windows CE操作系統(tǒng)為基礎(chǔ)進(jìn)行呼吸信號(hào)的采集與處理，通過藍(lán)牙將采集到的呼吸信號(hào)實(shí)時(shí)發(fā)送至外部顯示設(shè)備；研究android系統(tǒng)下的應(yīng)用程序開發(fā)，編程控制android設(shè)備接收呼吸信號(hào)并顯示，實(shí)現(xiàn)呼吸信號(hào)的實(shí)時(shí)監(jiān)測(cè)。 (3)睡眠時(shí)人體位置不固定導(dǎo)致檢測(cè)信號(hào)的失真和缺失，通過增加檢測(cè)電極的數(shù)量，從不同的位置對(duì)人體的呼吸信號(hào)進(jìn)行多點(diǎn)檢測(cè)，彌補(bǔ)了單一檢測(cè)電極拾取信號(hào)的片面性和局部性，采用主分量分析的算法，把分布在不同位置的檢測(cè)電極所提供的局部不完整的呼吸信號(hào)加以綜合，消除多維檢測(cè)信號(hào)之間可能存在的冗余和干擾，加以互補(bǔ)、降低不確定性，提高呼吸信號(hào)的信噪比以及對(duì)呼吸信號(hào)的提取，實(shí)現(xiàn)呼吸信號(hào)非接觸測(cè)量。
[Abstract]:Sleep breathing detection is of great significance to the life characteristics of prevention of sleep apnea and monitoring of human sleep. Detection method of contact type binding to human contact, breathing detection long time can affect people's sleep. Aiming at the above problems, this paper proposes a method of non-contact detection of breathing based on the principle of capacitance frequency, to ensure accurate measurement results under the premise of avoiding the limitation of electrodes or sensors on the human body, improve the detection process of respiratory comfort; to use the embedded system to collect and process the respiratory signal acquisition unit can reduce the volume and cost; wireless transmission of respiratory signals using Bluetooth technology can the expansion of external local acquisition system display function, make the diagnosis of the doctor or tester can real-time on respiratory status were observed. This paper mainly studies The contents are as follows:
(1) according to the changes of human thoracic respiration process, using the detection electrode will change into the thorax and the change in capacitance oscillation circuit of frequency non contact measurement of the respiratory signal. The frequency discriminator circuit and filter circuit, demodulation of the respiratory signal from the frequency modulated signal and then amplified and filtered, and realize the collection the treatment of the respiratory signal.
(2) acquisition and processing based on ARM processor and Windows CE operating system as the basis for the respiratory signal, the collected real-time respiratory signal sent to the external display device via Bluetooth; application development of Android system, Android programming control device receives the respiration signal and display, real-time monitoring of the respiratory signal.
(3) sleep the body position is not fixed and the lack of distortion to the detection signal, by increasing the number of detection electrode, multi-point detection from different locations on the human respiratory signal, make up a single detection electrode signal picking up one sidedness and locality, using principal component analysis algorithm, the local is not complete the respiratory signal distribution provided in different locations of the detection electrode to be integrated to eliminate possible between multidimensional signal detection and interference are complementary, redundancy, reduce uncertainty and improve the signal-to-noise ratio and extraction of the respiratory signal of the respiratory signal, non contact measurement of the respiratory signal.

【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN911.23;TN925

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