礦用空壓機(jī)綜合后備保護(hù)儀(論文).

1、第十三屆“挑戰(zhàn)杯”全國(guó)大學(xué)生課外學(xué)術(shù)科技作品競(jìng)賽作品礦用空壓機(jī)綜合后備保護(hù)儀目 錄摘 要··········································

2、3;··············3 Abstract··································

3、·······················4 1、研究背景·························

4、3;······························5 1.1空壓機(jī)綜合后備保護(hù)儀研究的意義················&#

5、183;······················5 1.2空壓機(jī)綜合后備保護(hù)儀研究的現(xiàn)狀························

6、························5 1.3空壓機(jī)研究現(xiàn)狀························

7、·····················61.4本系統(tǒng)要達(dá)到的目標(biāo)···························

8、;················72、系統(tǒng)可行性分析································&

9、#183;·················82.1空壓機(jī)綜合后備保護(hù)儀可行性分析·····························

10、···8 2.3空壓機(jī)綜合后備保護(hù)儀安全性分析···········································10 2

11、.4空壓機(jī)綜合后備保護(hù)儀的應(yīng)用性分析·········································113、各個(gè)模塊的設(shè)計(jì)方案和思路···&#

12、183;···································113.1整個(gè)方案設(shè)計(jì)的總體思路框圖···········&#

13、183;······················11 3.2信號(hào)采集方案設(shè)計(jì)·························

14、····················12 3.4信號(hào)濾波方案的設(shè)計(jì)···························

15、83;··············14 3.5信號(hào)隔離放大方案設(shè)計(jì)·································

16、;·······16 3.6信號(hào)數(shù)模轉(zhuǎn)換方案的設(shè)計(jì)······································17 3.7 CPU模塊

17、方案的設(shè)計(jì)··········································18 4、系統(tǒng)測(cè)試與結(jié)果分析 1.測(cè)試環(huán)境 2.測(cè)試方法3.測(cè)試結(jié)果4.成果展示5、應(yīng)

18、用展望·················································

19、83;·····205.1系統(tǒng)實(shí)現(xiàn)的功能··········································

20、83;···205.2系統(tǒng)課擴(kuò)展的用途············································21

21、5.3系統(tǒng)技術(shù)性的突破············································21 6、總結(jié)···

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23、······22 參考文獻(xiàn)···········································

24、;··············23附錄1 元器件清單附錄2 系統(tǒng)原理圖摘 要本設(shè)計(jì)在分析空壓機(jī)（空氣壓縮機(jī)）綜合后備保護(hù)現(xiàn)狀及發(fā)展趨勢(shì)的基礎(chǔ)上，針對(duì)空壓機(jī)綜合后備保護(hù)的各個(gè)方面進(jìn)行了研究，從系統(tǒng)硬件電路、軟件、通信外擴(kuò)等幾部分描述了整個(gè)系統(tǒng)的設(shè)計(jì)過(guò)程。該作品可以實(shí)現(xiàn)空壓機(jī)的的四種安全保護(hù)裝置：超壓、 欠壓保護(hù)、 超溫保護(hù)、 斷水保護(hù)、 主電機(jī)保護(hù)，能有效改善各項(xiàng)指標(biāo)，提高礦用空壓機(jī)運(yùn)行的安全性和可靠性，為現(xiàn)代采礦、 采煤提供了良好的基礎(chǔ)支持。本系統(tǒng)采用PL

25、C為主控制器，選用PLC外部擴(kuò)展模塊實(shí)現(xiàn)空壓機(jī)后備的綜合保護(hù)。系統(tǒng)功能設(shè)計(jì)符合煤礦安全規(guī)程要求結(jié)構(gòu)合理工作可靠、性能穩(wěn)定、安裝維護(hù)方便、應(yīng)用效果良好。關(guān)鍵字：空壓機(jī) PLC 傳感器 安全保護(hù) AbstractThis design on the analysis of EEG present research situation and development trend basis，the EEG signal acquisition and processing for all aspects of the in-depth study, from the system hardware

26、design, system software design, Outside the design of system communication expanded sections describe the design process of the whole system works. It can achieve 20-channel EEG signal acquisition, processing, display, communication; it also can effectively improve the technical indicators, to impro

27、ve the diagnostic rate of brain diseases, to provide a good basis for support modern medical care, family care and other fields. This system uses the current popular technologies called “Internet of Things”, use advanced embedded operating system for data processing and communications. Make the syst

28、em more portable, more interference, easy operation, low power consumption and ease communication, making the instrument easier to use EEG to obtain more precise EEG signal recorded more sustainable, through the network communication, to achieve remote diagnosis and treatment.Keywords： EEG signal ac

29、quisition and processing; Embedded Systems; Internet of Things; Low power consumption; Portable;1 研究背景1.1空壓機(jī)后備保護(hù)研究的意義空氣壓縮機(jī)屬于動(dòng)力機(jī)械, 其原理是:將空氣壓縮, 增加其動(dòng)力, 使之具有一定的能量, 并將這種能量作為風(fēng)動(dòng)機(jī)械、 風(fēng)動(dòng)工具等裝置的動(dòng)力 。 空氣壓縮機(jī)的經(jīng)濟(jì) 、安全、 使用方便的特點(diǎn)使其具有廣闊的市場(chǎng)應(yīng)用前景。 但是, 與其配套的控制及保護(hù)裝置目前主要以人工和機(jī)械相結(jié)合的方式為主, 這種方式的的缺點(diǎn)很明顯: 功能少、控制精度低、 可靠性差等等, 對(duì)空氣壓縮機(jī)的質(zhì)量

30、和穩(wěn)定性有很大的影響。 一旦在現(xiàn)場(chǎng)發(fā)生事故時(shí), 若自動(dòng)采取緊急措施, 極易造成巨大的經(jīng)濟(jì)損失, 大大減少機(jī)器的使用壽命。因此，設(shè)計(jì)出一款功能多 控制精度高 可靠性好的空壓機(jī)后備保護(hù)儀就顯得格外重要。1.2空壓機(jī)后備保護(hù)儀研究的現(xiàn)狀現(xiàn)在市場(chǎng)上的空壓機(jī)后備保護(hù)儀多采用單片機(jī)進(jìn)行控制，可以檢測(cè)空壓機(jī)的潤(rùn)滑油油壓 、一級(jí)缸溫度、 二級(jí)缸溫度 、風(fēng)包溫度和斷水等參數(shù)。當(dāng)各參數(shù)超限時(shí)發(fā)出相應(yīng)的聲光報(bào)警。1.3本系統(tǒng)要達(dá)到的目標(biāo)通過(guò)市場(chǎng)現(xiàn)有的儀器優(yōu)缺點(diǎn)的對(duì)比，在本系統(tǒng)中我們應(yīng)用先進(jìn)的電子技術(shù)對(duì)其不足加以改進(jìn)，同時(shí)繼承其優(yōu)越性。本系統(tǒng)解決了內(nèi)部電路的復(fù)雜問(wèn)題，實(shí)現(xiàn)了便攜性、高性能、高精度、高可靠性。通過(guò)PLC

31、外部擴(kuò)展模塊，有效解決了信號(hào)處理部分的數(shù)據(jù)計(jì)算和疊加等一系列問(wèn)題。同時(shí)，還可以在PLC液晶顯示屏上對(duì)其限值參數(shù)進(jìn)行更加精確細(xì)致的處理，以便觀察。運(yùn)用工業(yè)以太網(wǎng)技術(shù)建立后臺(tái)監(jiān)控系統(tǒng)，能夠讓后臺(tái)工作人員及時(shí)發(fā)現(xiàn)故障，起到對(duì)設(shè)備運(yùn)行參數(shù)進(jìn)行實(shí)時(shí)監(jiān)控。系統(tǒng)參數(shù)電 源 電 壓： 220V排氣溫度保護(hù)范圍： 100160 可調(diào)風(fēng)包溫度保護(hù)范圍: 90120 可調(diào)潤(rùn)滑油溫度保護(hù)范圍: 4070 可調(diào)斷油保護(hù)保護(hù)范圍： 0.1Mpa0.4Mpa 可調(diào)斷水保護(hù)保護(hù)范圍： 0.1Mpa0.4Mpa 可調(diào)測(cè)試溫度精度： +12 系統(tǒng)可行性分析2.1空壓機(jī)綜合后備保護(hù)儀可行性分析 市場(chǎng)上現(xiàn)有的后備保護(hù)裝置多為基于單片

32、機(jī)設(shè)計(jì)的可編程控制系統(tǒng)，系統(tǒng)雖可以對(duì)空壓機(jī)的各故障點(diǎn)進(jìn)行測(cè)試，起到一定程度的對(duì)設(shè)備運(yùn)行參數(shù)進(jìn)行實(shí)時(shí)監(jiān)控。但儀器的供電電源為直流5V,工作時(shí)功耗低，在工廠這個(gè)環(huán)境中極易發(fā)生程序跑飛，主控芯片死機(jī)現(xiàn)象，可靠性不足，抗干擾性差。該項(xiàng)目綜合保護(hù)裝置主機(jī)采用國(guó)產(chǎn)的PLC可編程序控制器技術(shù)，電源采用交流220V供電，為保護(hù)設(shè)備能在嘈雜工業(yè)環(huán)境中正常運(yùn)行提供了保證，提高了后備保護(hù)儀的抗干擾性。顯示器采用信捷公司提供TP系列觸摸屏，強(qiáng)大而又人性化的設(shè)計(jì)軟件TouchWin給觸摸屏的圖形界面設(shè)計(jì)帶來(lái)了極大地便利，可以很方便的設(shè)計(jì)出檢測(cè)畫(huà)面。可以對(duì)采集信號(hào)進(jìn)行設(shè)置和觀察，有限避免風(fēng)包燃燒與爆炸等事故的發(fā)生，解決風(fēng)包溫度如何控制在國(guó)家規(guī)定的“不得超過(guò)120”的要求現(xiàn)壓風(fēng)系統(tǒng)的遠(yuǎn)程自動(dòng)化控制。另外，采用XC3型號(hào)PLC的外部擴(kuò)展以太網(wǎng)模塊，可以實(shí)時(shí)將檢測(cè)數(shù)據(jù)及報(bào)警數(shù)據(jù)上傳，實(shí)現(xiàn)空壓系統(tǒng)無(wú)人值守和遠(yuǎn)程監(jiān)控。溫度傳感器采用先進(jìn)的PT100對(duì)風(fēng)包溫度信號(hào)進(jìn)行采集，pt100是鉑熱電阻，它的阻值會(huì)隨著溫度的變化而改變，具