本文關(guān)鍵詞：基于STM32的16位多通道生理信號采集系統(tǒng)的設(shè)計(jì)　出處：《山東師范大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： STM32 USB設(shè)備 生理信號 A/D轉(zhuǎn)換 采集

【摘要】：伴隨著人類社會(huì)的發(fā)展和科技的進(jìn)步，以及人口老齡化的趨勢，心腦血管疾病成為威脅人類生命的最主要因素，是人類面臨的頭號殺手。而心腦血管疾病與生理信號有非常密切的關(guān)系，生理信號可以表征人體的生命指標(biāo)，因此在醫(yī)學(xué)上，生理信號的精確采集、分析以及處理，對于治療疾病和臨床醫(yī)學(xué)研究具有非常重要的意義。現(xiàn)在臨床上已經(jīng)可以通過對生理信號的分析，預(yù)測和診斷患者的心腦血管狀況以及可能出現(xiàn)的相關(guān)癥狀。 生理信號的采集便是對生理信號進(jìn)行分析和處理的首要環(huán)節(jié)，是心腦血管疾病診斷不可或缺的環(huán)節(jié)。采集到高質(zhì)量的生理信號，對于疾病的診斷有巨大的幫助，，因此要盡量不失真采集生理信號。隨著電子科學(xué)技術(shù)、數(shù)字信號處理技術(shù)和自動(dòng)化的發(fā)展的迅速發(fā)展，生理信號的監(jiān)測設(shè)備的發(fā)展也在朝著微型化、多功能化和低功耗的方向發(fā)展，方便了人們對生命的生理病理狀況等的研究。采集信號的多樣化、準(zhǔn)確可靠，在醫(yī)學(xué)教學(xué)和臨床診斷治療中發(fā)揮的作用越來越重要。 本項(xiàng)目主要內(nèi)容是關(guān)于基于STM32的16位多通道生理信號采集系統(tǒng)的硬件平臺搭建及軟件平臺的設(shè)計(jì)的研究；開發(fā)的目的就是基于上述方法，搭建一個(gè)簡單易用的便攜式生理信號的采集系統(tǒng)。 本論文主要完成了以下幾方面的研究工作： （1）主要介紹生理信號定義及采集系統(tǒng)的基本技術(shù)基礎(chǔ)。首先介紹生理信號的含義和特點(diǎn)，以及他所包含的種類，然后重點(diǎn)對生理信號中最常見的心電生理信號的產(chǎn)生原理進(jìn)行了分析。 （2）簡要的介紹了根據(jù)生理信號采集系統(tǒng)的任務(wù)以及各項(xiàng)技術(shù)指標(biāo)，對主要功能模塊做出選擇，并且確定了該信號采集系統(tǒng)所要是實(shí)現(xiàn)的主要功能目標(biāo)。找出能夠?qū)崿F(xiàn)本系統(tǒng)所要達(dá)到的目標(biāo)的生理信號采集方案。本文中硬件部分詳細(xì)介紹了基于STM32F103的生理信號采集系統(tǒng)硬件平臺的總體設(shè)計(jì)和搭建。包括系統(tǒng)核心微控制器STM32F103的功能和選擇STM32F103的原因，采集系統(tǒng)的關(guān)鍵器件A/D轉(zhuǎn)換器的選取原因和功能。介紹了信號調(diào)理電路部分的設(shè)計(jì)方案，包括前置放大部分電路、濾波電路和保護(hù)元器件等設(shè)計(jì)。軟件平臺設(shè)計(jì)部分介紹了USB功能模塊，模塊各個(gè)部分的各自實(shí)現(xiàn)方法和各自的功能。還介紹了硬件設(shè)備驅(qū)動(dòng)程序部分的設(shè)計(jì)方案和一般的工作流程。 （3）詳細(xì)介紹了信號采集系統(tǒng)的固件程序設(shè)計(jì)，包括系統(tǒng)下位機(jī)主程序的實(shí)現(xiàn)過程、A/D轉(zhuǎn)換模塊和數(shù)據(jù)傳輸部分程序的設(shè)計(jì)、USB驅(qū)動(dòng)程序的設(shè)計(jì)和介紹以及系統(tǒng)驅(qū)動(dòng)程序的設(shè)計(jì)方案等。 本生理信號采集系統(tǒng)的搭建，對于采集到穩(wěn)定的、高質(zhì)量、高精度的信號奠定了較好的基礎(chǔ)。
[Abstract]:With the development of human society and the progress of science and technology, as well as the trend of aging population, cardiovascular and cerebrovascular diseases have become the most important factor threatening human life. Cardiovascular and cerebrovascular diseases have a very close relationship with physiological signals. Physiological signals can represent human life indicators, so in medicine, physiological signals are accurately collected. Analysis and treatment are of great significance for the treatment of diseases and clinical medical research. Now it is possible to analyze physiological signals in clinic. Predict and diagnose cardiovascular and cerebrovascular status and possible associated symptoms. The acquisition of physiological signals is the first step in the analysis and processing of physiological signals, and is an indispensable link in the diagnosis of cardiovascular and cerebrovascular diseases. It is of great help for the diagnosis of diseases, so it is necessary to collect physiological signals without distortion. With the rapid development of electronic science and technology, digital signal processing technology and automation. The development of physiological signal monitoring equipment is also towards the direction of miniaturization, multifunction and low power consumption. It is convenient for people to study the physiological and pathological conditions of life. It plays a more and more important role in medical teaching and clinical diagnosis and treatment. The main content of this project is about the hardware platform construction and software platform design of 16-bit multi-channel physiological signal acquisition system based on STM32. The purpose of the development is to build a simple and easy-to-use portable physiological signal acquisition system based on the above method. This thesis mainly completed the following research work: The definition of physiological signals and the basic technical basis of the acquisition system are introduced. Firstly, the meaning and characteristics of physiological signals and the types they contain are introduced. Then, the principle of electrocardiogram (ECG) which is the most common physiological signal is analyzed. According to the tasks of the physiological signal acquisition system and various technical indicators, the selection of the main functional modules is briefly introduced. The main function target of the signal acquisition system is determined, and the physiological signal acquisition scheme which can achieve the goal of the system is found. The hardware part of this paper introduces the system based on STM32 in detail. The overall design and construction of the hardware platform of the physiological signal acquisition system of F103, including the function of the system core microcontroller STM32F103 and the reason of choosing STM32F103. The selection reason and function of the key device of the acquisition system A / D converter. The design scheme of the signal conditioning circuit is introduced, including most of the preamplifier circuits. The design of filter circuit and protection components. The USB function module is introduced in the design of software platform. The methods and functions of each part of the module are introduced, and the design scheme and general workflow of the hardware device driver are also introduced. The firmware program design of the signal acquisition system is introduced in detail, including the realization process of the master program of the lower computer and the design of the A- / D conversion module and the data transmission part of the program. The design and introduction of USB driver and the design scheme of system driver. The establishment of the physiological signal acquisition system lays a good foundation for the acquisition of stable, high quality and high precision signals.
【學(xué)位授予單位】：山東師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN911.7

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相關(guān)期刊論文 前1條

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