-
簡(jiǎn)介:1熱力服務(wù)有限公司熱力服務(wù)有限公司供熱工程供熱工程電氣自控改造技術(shù)規(guī)范書電氣自控改造技術(shù)規(guī)范書熱力服務(wù)有限公司熱力服務(wù)有限公司3電氣自控改造技術(shù)規(guī)范電氣自控改造技術(shù)規(guī)范1、電氣技術(shù)要求、電氣技術(shù)要求1111規(guī)范和標(biāo)準(zhǔn)規(guī)范和標(biāo)準(zhǔn)電控柜應(yīng)符合GB72511和GB/T49422的規(guī)定。IEC國(guó)際電工委員會(huì)ISO國(guó)際標(biāo)準(zhǔn)組織IEEE美國(guó)電氣和電子工程師協(xié)會(huì)JB、DL(國(guó)家、部級(jí)有關(guān)標(biāo)準(zhǔn))其它國(guó)際公認(rèn)的與上述標(biāo)準(zhǔn)相當(dāng)或更好的標(biāo)準(zhǔn)只要經(jīng)淮安市陽(yáng)光熱力服務(wù)有限公司同意也可接受。在未列出指定標(biāo)準(zhǔn)的地方,投標(biāo)者應(yīng)滿足中華人民共和國(guó)相關(guān)的ISO標(biāo)準(zhǔn)和GB、JB標(biāo)準(zhǔn),并保證根據(jù)這些標(biāo)準(zhǔn)進(jìn)行產(chǎn)品的設(shè)計(jì)、制造、試驗(yàn)、檢驗(yàn)等。1212電氣設(shè)計(jì)條件電氣設(shè)計(jì)條件使用區(qū)域淮安市市區(qū)內(nèi)環(huán)境下使用。1313電氣設(shè)備描述電氣設(shè)備描述131131電氣控制柜電氣控制柜根據(jù)招標(biāo)方的要求及工藝要求,每套機(jī)組只有一臺(tái)循環(huán)泵做變頻改造,其余不變,該循環(huán)泵不設(shè)工頻控制。變頻控制柜與儀表控制柜中的控制器(以下簡(jiǎn)稱RTU)相結(jié)合,實(shí)現(xiàn)自動(dòng)運(yùn)行、檢測(cè)和控制功能。(1)電氣控制柜的技術(shù)參數(shù)額定電壓三相380V±10額定頻率50HZ±2額定工作電流參見相應(yīng)電機(jī)負(fù)荷1分鐘工頻耐壓2500V變頻控制柜應(yīng)設(shè)置設(shè)備狀態(tài)自檢測(cè)及電機(jī)短路保護(hù)和接地故障保護(hù)功能,并應(yīng)根據(jù)具體情況分別裝設(shè)對(duì)電機(jī)的過載保護(hù)、缺相與短路保護(hù)、低電壓保護(hù)、負(fù)載超溫保護(hù)、三相電流不平衡保護(hù)等功能,(詳細(xì)措施見GB5005593通用用電設(shè)備配電設(shè)計(jì)規(guī)范)。在變頻控制柜上,設(shè)有運(yùn)行指示燈和故障指示燈、啟動(dòng)障指示燈、啟動(dòng)/停止按鈕、選擇開關(guān)、停止按鈕、選擇開關(guān)、帶刻度盤電位器。變頻控制柜應(yīng)具有手動(dòng)/本地自動(dòng)/遠(yuǎn)程自動(dòng)切換開關(guān)。手動(dòng)時(shí),水泵處于變頻狀態(tài),利用變頻柜門上的啟停按鈕與設(shè)定電位器人工控制水泵變頻運(yùn)行;自動(dòng)時(shí),水泵處于變頻狀態(tài),根據(jù)機(jī)組RTU控制柜發(fā)來的啟停信號(hào)與變頻信號(hào)控制水泵的運(yùn)行,本地自動(dòng),根據(jù)本地機(jī)組控制系統(tǒng)控制水泵啟停與變頻。變頻控制柜內(nèi)設(shè)置塑殼斷路器、交流接觸器。其他控制回路、風(fēng)扇、照明燈均應(yīng)有保護(hù)開關(guān),保變頻控制柜內(nèi)設(shè)置塑殼斷路器、交流接觸器。其他控制回路、風(fēng)扇、照明燈均應(yīng)有保護(hù)開關(guān),保護(hù)開關(guān)應(yīng)具有隔離功能。護(hù)開關(guān)應(yīng)具有隔離功能。變頻柜給RTU柜提供一路220VAC20A電源。萬達(dá)三期、酈城國(guó)際兩個(gè)新?lián)Q熱萬達(dá)三期、酈城國(guó)際兩個(gè)新?lián)Q熱站循泵設(shè)工頻、變頻兩種模式。站循泵設(shè)工頻、變頻兩種模式。
下載積分: 8 賞幣
上傳時(shí)間:2024-03-16
頁(yè)數(shù): 28
大?。?0.26(MB)
子文件數(shù):
-
簡(jiǎn)介:中文中文3920字畢業(yè)設(shè)計(jì)論文外文資料翻譯系部部機(jī)械工程系專業(yè)業(yè)機(jī)械工程及自動(dòng)化姓名名學(xué)號(hào)號(hào)外文出處外文出處PROCESSCONTROLLERDESIGNFORSHEETMETALFORMING,PROCEEDINGSOFTHEAMERICANCONTROLCONFERENCE,SANDIGEO,CALIFORNIAJUNE1999,P192196附件件1外文資料翻譯譯文;2外文原文。指導(dǎo)教師評(píng)語該英文翻譯經(jīng)過幾次修改后語句較通順,語義較正確。基本能正確表達(dá)原文的內(nèi)容,這反映了該生通過本英文翻譯基本掌握了科技文獻(xiàn)的閱讀方法和常用專業(yè)詞匯的翻譯方法,但仍需要加強(qiáng)學(xué)習(xí),基本達(dá)到了外文資料的翻譯目的。簽名年月日究表明在拉深過程中采用變壓邊力對(duì)于改進(jìn)成形性,減少回彈和得到好的工件重復(fù)精度。一種變壓邊力應(yīng)用的策略(如過程控制)如圖2所示。圖2是金屬板材成型中的過程控制在該策略中,通過控制壓邊力按照事先設(shè)定好的軌跡(如沖頭的力位移曲線)控制一個(gè)可測(cè)的過程變量(如沖力)。相似的方法在文獻(xiàn)【5,6,7】中有所報(bào)道。最近對(duì)于金屬板成型的研究又得出以下結(jié)論1零件質(zhì)量的一致性可以通過反饋跟蹤特性來提高。2更高的質(zhì)量可以通過選擇參考的沖壓力軌跡來得到。意識(shí)到一個(gè)糟糕的過程控制器是不能很好的保證跟蹤性能結(jié)果也不能保證零件質(zhì)量和重復(fù)精度是非常重要的。很明顯,過程控制器在反饋控制系統(tǒng)中起著重要的作用,因此需要進(jìn)一步的研究。過程控制器在金屬板材成型過程中的重要細(xì)節(jié)還沒有完全確定,尤其,從控制的角度。制造金屬板材成型的控制器已經(jīng)說明了9。HSUETAL。10最近提出了利用一次線性動(dòng)力學(xué)模型在實(shí)驗(yàn)中捕捉加工過程力的變化的觀點(diǎn)。比例積分控制已經(jīng)被用在金屬板成形和控制器部分。這種應(yīng)用一定程度上是由它的特點(diǎn)和誤差決定的。比例積分控制的優(yōu)點(diǎn)是,好的控制器它能取得好的跟蹤效果。但是,不能保持好的持久性。然而,差的控制器能得到好的持久性。但是,不能得到好的可跟蹤特性。當(dāng)金屬板材成型加工更多用于非直線時(shí),很難使比例積分控制器和壓邊圈系統(tǒng)保持一致的好的表現(xiàn)。HSUETAL8研究說明連續(xù)比例積分控制反饋表現(xiàn)(PIF)雖然PIF控制在干燥情況下工作很好,它在潤(rùn)滑良好情況下工作會(huì)產(chǎn)生一個(gè)大的壓邊力。這個(gè)研究的目的是為了系統(tǒng)地發(fā)展能使金屬板材成形保持更好的跟蹤效果的過程。一個(gè)連續(xù)得到PI過程控制的,金屬板材逆動(dòng)力學(xué)學(xué)的成型學(xué)說將要被提
下載積分: 10 賞幣
上傳時(shí)間:2024-03-12
頁(yè)數(shù): 13
大小: 0.39(MB)
子文件數(shù):
-
簡(jiǎn)介:第1頁(yè)共8頁(yè)中文2670字基于ST語言(結(jié)構(gòu)化文本語言)可編程控制器組態(tài)控制和編程經(jīng)驗(yàn)作者GKARMAKAR,ASHUTOSHKABRA,JOSEJOSEPH,BBBISWAS,RKPATIL反應(yīng)器控制部分巴哈馬原子能研究中心摘要摘要本文的主要內(nèi)容為在可編程控制器的配置過程中,根據(jù)運(yùn)行過程中的配置情況進(jìn)行程序代碼編寫,并且將實(shí)時(shí)操作系統(tǒng)抽象的嵌入PLC硬件之中,從而實(shí)現(xiàn)一個(gè)典型的控制邏輯應(yīng)用,在此過程中我們使用的是IEC611313標(biāo)準(zhǔn)ST語言。關(guān)鍵詞關(guān)鍵詞PLC,ST語言,POU(程序組織單元),配置,資源,程序,功能11引言引言可編程控制器是大多數(shù)控制項(xiàng)目的骨干,例如發(fā)電,鋼鐵生產(chǎn),化工,石油化工,核電站等各行業(yè)。一個(gè)可編程控制器(PLC)是一種工業(yè)計(jì)算機(jī)控制系統(tǒng),它能連續(xù)監(jiān)測(cè)設(shè)備的輸入狀態(tài),并且根據(jù)某種程序來控制輸出設(shè)備的狀態(tài)。針對(duì)生產(chǎn)過程中的輸入條件是一段時(shí)間,要求可編程控制器的輸出結(jié)果應(yīng)該為一個(gè)實(shí)時(shí)的系統(tǒng)。在過去,許多PLC生產(chǎn)廠商使用自己的編程語言,這些語言與他人是不兼容的。為了提高不同產(chǎn)品之間重用組件的兼容性和互操作性,國(guó)際電工委員會(huì)61131標(biāo)準(zhǔn)針對(duì)主要不同引入統(tǒng)一的做法。IEC61131標(biāo)準(zhǔn)的第三部分規(guī)定了統(tǒng)一的基于可編程控制器的編程語言套件的語法和語義。在本文中,我們描述了一個(gè)運(yùn)用PLC的典型控制邏輯應(yīng)用,包括實(shí)時(shí)的程序?qū)懭?,?shí)時(shí)的代碼生成配置,和PLC硬件部分的實(shí)時(shí)操作系統(tǒng)嵌入,在此過程中我們運(yùn)用的是ST編程語言。22研究范例研究范例21案例定義一個(gè)簡(jiǎn)單的應(yīng)用案例,控制一個(gè)水泵P1和排放閥V1并且根據(jù)要求向指定設(shè)備(例如一個(gè)SCADA站)發(fā)送信息。使用要求使用要求1讀取以下內(nèi)容的輸入情況。A)P1的啟動(dòng)按鈕的狀態(tài)(離散輸入)B)P1的停止按鈕的狀態(tài)(離散輸入)第3頁(yè)共8頁(yè)所示。圖41基于IEC611313標(biāo)準(zhǔn)的軟件體系結(jié)構(gòu)41組態(tài),資源,任務(wù)在最高的等級(jí)中,針對(duì)一個(gè)特定問題的控制軟件是包含在一個(gè)組態(tài)系統(tǒng)中,他把PLC系統(tǒng)所利用的所有資源組織在一起,并提供他們之間交換數(shù)據(jù)的協(xié)議。資源就是其中的處理設(shè)施,能夠執(zhí)行IEC方案,它的定義為,向PLC系統(tǒng)的物理資源進(jìn)行任務(wù)分配。一個(gè)組態(tài)中可以有一個(gè)或多個(gè)資源。組態(tài)和資源不會(huì)像程序組織單元那樣包含相互指示,但僅僅定義它們的元素之間的關(guān)系。任務(wù)是定義為一個(gè)能夠援引的執(zhí)行控制單元,他可能發(fā)生在一個(gè)定期時(shí)間段,或者時(shí)間段之后,或者某個(gè)變量的上升沿。執(zhí)行某個(gè)組織單位的方案,其中包括程序集和功能模塊。像其他PLC應(yīng)用方案一樣,我們需要定義復(fù)合要求的I/O硬件設(shè)備和他的類型,對(duì)于我們研究的案例,包括一個(gè)數(shù)字輸入卡,一個(gè)數(shù)字輸出卡和一個(gè)模擬輸入卡。配置ST程序如下組態(tài)過程控制程序組態(tài)元素組態(tài)資源任務(wù)/運(yùn)行時(shí)程序程序功能模塊功能模塊功能模塊功能功能
下載積分: 10 賞幣
上傳時(shí)間:2024-03-16
頁(yè)數(shù): 10
大小: 0.11(MB)
子文件數(shù):
-
簡(jiǎn)介:FUSIONENGINEERINGANDDESIGN712004269–274SIMULATIONPLATFORMFORREMOTEPARTICIPANTSINFUSIONEXPERIMENTSEBARRERAA,MRUIZA,SLóPEZA,JVEGAB,ESáNCHEZBABSTRACTONEOFTHEMAJORCHALLENGESINREMOTEPARTICIPATIONINFUSIONEXPERIMENTSISTHECONTROLFROMREMOTELOCATIONSOFTHEDATAACQUISITIONANDTREATMENTPROCESSINANOPTIMUMSITUATION,THEREMOTERESEARCHERSHOULDBEABLETOCONTROLTHEDATAACQUISITIONCONFIGURATIONPARAMETERS,ANDDATAPROCESSING,SPECIFYINGTHERESULTSTHATMUSTBERETURNEDTOHIMTHESIMULATIONPLATFORMPRESENTEDHERE,ALLOWSTHERESEARCHERTODEVELOPANDTESTCOMPLEXALGORITHMSINAHIGHLEVELGRAPHICALLANGUAGELABVIEW,WHICHINCLUDESPOWERFULDATAPROCESSINGLIBRARIESTHESEALGORITHMSWILLBEDOWNLOADEDLATERINTOTHEDATAACQUISITIONSYSTEMFURTHERMORE,THEPLATFORMALLOWSTHESIMULATIONOFHARDWAREDATAACQUISITION,WHICHINCLUDETHEFOLLOWINGPOINTSASIMULATIONOFCHANNELCONFIGURATIONFROMONEORSEVERALDATAACQUISITIONCARDSCHANNELSUSED,SAMPLEFREQUENCIES,ETC,BGENERATIONOFBUFFEREDSIMULATEDDATAITISALSOPOSSIBLETHEUSEOFRAWDATA,ACQUIREDINPREVIOUSEXPERIMENTS,ASSIMULATEDDATA,ANDCREPRODUCTIONOFHARDWAREBEHAVIOREXCEPT,OFCOURSE,INTERMSOFREALTIMEBEHAVIORANDREALDATAFORTHISPURPOSE,VIRTUALINSTRUMENTSVISLIBRARIESWRITTENINLABVIEWWILLBEPROVIDEDTOTHEREMOTEDEVELOPERSTHESEVISWILLBEREPLACEDLATER,INTHEDATAACQUISITIONSYSTEM,BYTHEIRHOMOLOGOUSVISTHATACTUALLYINTERFACESWITHTHEHARDWARETHISFACILITYWILLALLOWREMOTERESEARCHERSTOVERIFYTHECORRECTBEHAVIOROFTHEIROWNDATAPROCESSINGALGORITHMSBEFOREDOWNLOADINGTHEMINTOTHEDATAACQUISITIONSYSTEMKEYWORDSREMOTEPARTICIPATIONSIMULATIONDATAPROCESSINGCODETESTINGFOURTHGENERATIONLANGUAGE1INTRODUCTIONTHEDEVELOPMENTOFAREMOTEPARTICIPATIONSYSTEMISONEAIMOFTHERECENTTJII附錄A外文資料翻譯A1外文ACQUISITION,THEBEGINNINGOFTHESIMULATION,THEREADINGOFDATAANDTHERELEASEOFTHEUSEDRESOURCES,RESPECTIVELYEACHONEOFTHEMISINDEPENDENTANDRUNSINAPARALLELWAYWITHTHEOTHERSTHECOMMUNICATIONANDSYNCHRONIZATIONBETWEENTHEMODULESISDONEUSINGGLOBALVARIABLESWHICHACCESSISCONTROLLEDBYSEMAPHORESTHECONFIGURATIONOFTHESIMULATORREQUIRESTHEFOLLOWINGOPERATINGPARAMETERS●DEFINITIONOFTHENUMBEROFCHANNELS,BUFFERSIZEANDSAMPLINGRATE●DEFINITIONOFADATABASETHATCONTAINSTHEUSERS’IDENTIFIERSIDANDWHICHCHANNELSAREASSOCIATEDTOEACHONEOFTHEMTHESIMULATORWORKSINAMULTIUSERWAY,THISMAKESITNECESSARYTODEFINEWHICHCHANNELSAREBEINGUSEDBYEACHUSERPROGRAMTHATINTERACTSWITHTHESIMULATORTHISISDESCRIBEDMOREDEEPLYINSECTION22●DEFINITIONOFTHETYPEOFSIGNALTHATWILLBEUSEDINEACHCHANNELTHESIMULATORISABLETOGENERATENINEDIFFERENTSIGNALSSINE,SQUARE,TRIANGLE,SAWTOOTH,PERIODICRANDOMNOISE,GAUSSIANWHITENOISE,UNIFORMWHITENOISE,FORMULATHISOPTIONALLOWSFORTHEPOSSIBILITYOFGENERATINGASIGNALFROMAMATHEMATICALEXPRESSIONANDFILEWAVEFORMTHISOPTIONALLOWSTHEPOSSIBILITYOFGENERATINGASIGNALFROMTHEDATASTOREDINAFILE,WHICHCOULDALLOWTHESIMULATORTOWORKWITHDATATAKENFORMPREVIOUSACQUISITIONS●DEFINITIONOFTHEPARAMETERSOFTHESIGNALASSOCIATEDTOEACHCHANNELACCORDINGTOTHETYPEOFSIGNAL,ITWILLBENECESSARYTODEFINESOMEOFTHEFOLLOWINGPARAMETERSFREQUENCY,OFFSET,PHASE,STANDARDDEVIATION,FORMULA,PATHFORFILEWAVEFORM,AMPLITUDE,INCREASEAMPLITUDETHISPARAMETERINDICATESWHETHERTHESIGNAL’SAMPLITUDESHOULDBEINCREASEDWITHTIMEORNOTANDINCREASEFACTORINWHICHTHESIGNAL’SAMPLITUDESHOULDBEINCREASEDONCETHESIMULATORHASBEENCONFIGURED,ITREMAINSREADYTOCOMMUNICATEWITHTHEUSERSAPPLICATIONSTHATHAVEBEENDEVELOPEDUSINGTHEUTILITIESLIBRARYTHATWASOFFERED22UTILITIESLIBRARYTHEUTILITIESLIBRARYPROVIDEDTOTHEUSERHASBEENDEVELOPEDUSINGASIMILARMETHODOLOGYTOTHATUSEDINTHEDATAACQUISITIONLIBRARIESSUPPLIEDBYLABVIEWTHISLIBRARYISMADEUPBYHIGHLEVELMODULESTHATOFFERAGREATTRANSPARENCEINTHEBEHAVIOROFTHESYSTEMTOTHEUSERTHISWILLALLOWRESEARCHERSTODEVELOPAPPLICATIONSTHATWORKWITHTHEDATAACQUISITIONSYSTEMSINASIMPLEWAYANDWITHOUTNEEDINGADEEPKNOWLEDGEOFTHISPROGRAMMINGLANGUAGE
下載積分: 10 賞幣
上傳時(shí)間:2024-03-16
頁(yè)數(shù): 9
大?。?0.06(MB)
子文件數(shù):
-
簡(jiǎn)介:中文中文2686字本科畢業(yè)設(shè)計(jì)外文翻譯本科畢業(yè)設(shè)計(jì)外文翻譯學(xué)院機(jī)電信息工程學(xué)院專業(yè)(班級(jí))自動(dòng)化1152015年4月22日24符合特定的經(jīng)濟(jì)目標(biāo),在增加辛烷值的條件最大化汽油產(chǎn)量。圖1,工業(yè)催化裂化。過去的建議已經(jīng)促使研制成了具有高性能的新的控制結(jié)構(gòu)。在這種背景下,本文的目的為催化裂化過程設(shè)計(jì)和開發(fā)一種新的化學(xué)反應(yīng)控制結(jié)構(gòu),廠級(jí)控制。命名A催化劑與原料接觸比HREG反應(yīng)器催化級(jí)別QAIR空氣流量QCAT1催化劑再生流浪QFEED原料流量TFEED原料溫度TR輸出管溫度TRI最適宜的提升管溫度TREG再生器溫度TREG1再生催化劑溫度
下載積分: 10 賞幣
上傳時(shí)間:2024-03-11
頁(yè)數(shù): 10
大?。?0.62(MB)
子文件數(shù):
-
簡(jiǎn)介:畢業(yè)論文(設(shè)計(jì))畢業(yè)論文(設(shè)計(jì))外文翻譯題目電氣工程畢業(yè)生使用MATLAB最優(yōu)控制的過程系部名稱系部名稱專業(yè)班級(jí)專業(yè)班級(jí)學(xué)生姓名學(xué)生姓名學(xué)號(hào)號(hào)指導(dǎo)教師指導(dǎo)教師教師職稱教師職稱講師20年月日使用這些程序設(shè)計(jì)包的三個(gè)缺點(diǎn)是使用這些程序設(shè)計(jì)包計(jì)算機(jī)容易受影響,而且還要求學(xué)生或者老師學(xué)會(huì)如何使用這些計(jì)算機(jī)輔助程序設(shè)計(jì)包,并保證這些包括基準(zhǔn)線課程的設(shè)計(jì)包作為必修課程的一部分,更多詳細(xì)關(guān)于它的缺點(diǎn)的討論可以參閱我們前部分章節(jié)的內(nèi)容。賓州法尼亞大學(xué)大峽谷分校的最有控制系統(tǒng)賓州法尼亞大學(xué)大峽谷校園是賓州法尼亞大學(xué)十八個(gè)校園的其中之一,是在費(fèi)城區(qū)域的一個(gè)研究生中心,工程師們?cè)谀抢锕ぷ鱽頋M足教育的需求,利用各種各樣的仿真設(shè)計(jì)包幾乎所有的學(xué)生都變成了工程師。這些課程的目的是讓學(xué)生的數(shù)學(xué)工具參數(shù)化,動(dòng)態(tài)最優(yōu)化,并且用于設(shè)計(jì)表現(xiàn)最好的動(dòng)力系統(tǒng)。非線性系統(tǒng)課程包含下面的課題1、靜態(tài)最佳化2、離散系統(tǒng)的時(shí)間最優(yōu)控制21線性二次調(diào)節(jié)器22次優(yōu)反饋的穩(wěn)態(tài)閉環(huán)控制系統(tǒng)23跟蹤問題24最終狀態(tài)固定的調(diào)節(jié)閥與功能3、最優(yōu)控制的連續(xù)系統(tǒng)31線性二次調(diào)節(jié)器32次優(yōu)反饋的穩(wěn)態(tài)閉環(huán)控制系統(tǒng)33跟蹤問題34最終狀態(tài)固定的調(diào)節(jié)閥與功能35最終時(shí)間釋放問題36約束輸入問題4、動(dòng)態(tài)規(guī)劃41離散時(shí)間學(xué)生每周的作業(yè)包括計(jì)算機(jī)的仿真和使用,考試部分也包括用計(jì)算機(jī)仿真的作業(yè),學(xué)生可以使用學(xué)生版本的MATLAB。阿肯色州大學(xué)最優(yōu)控制系統(tǒng)本課程提供給本科生和研究所的學(xué)生,讓他們?yōu)檠芯拷?jīng)典的狀態(tài)空間控制技術(shù)做好充分準(zhǔn)備。這些課程的目的是讓學(xué)生的數(shù)學(xué)工具參數(shù)化,動(dòng)態(tài)最優(yōu)化,而且用于設(shè)計(jì)最好的動(dòng)力系統(tǒng)。為實(shí)現(xiàn)這一目標(biāo),作者(EYAZ)從1986年開始更新課程,從而下面
下載積分: 10 賞幣
上傳時(shí)間:2024-03-16
頁(yè)數(shù): 14
大小: 0.22(MB)
子文件數(shù):
-
簡(jiǎn)介:第1頁(yè)共16頁(yè)P(yáng)CREMOTECONTROLOFAPPLIANCESBYUSINGTELEPHONELINESABSTRACTTHEIDEAOFHOMEAUTOMATIONUSINGTELEPHONELINESANDAPCWASSHOWNINTHISSTUDYTHESYSTEMWASBASEDONTHEDUALTONEMULTIFREQUENCYDTMFSIGNALSTHATCOULDBESENTTHROUGHALOOPOFWIRETOSWITCHON/OFFVARIOUSAPPLIANCESVIAAPERSONALCOMPUTERPCTHESYSTEMHARDWAREANDSOFTWAREWEREDESIGNEDBASEDONTHETELEPHONESTANDARDSTHEHARDWAREPARTINCLUDEDTHEDTMFRECEIVERON/OFFHOOKDETECTORRINGDETECTORANDANINPUT/OUTPUTPCINTERFACINGCARDANEXAMPLEOFCONTROLLINGANAPPLIANCEWASPROVIDEDINTHESTUDYTHESOFTWARECONTROLPROGRAMMINGWASWRITTENINTURBOBASICANDTHEIRFLOWCHARTSAREPRESENTEDHEREFORTHEREADERSATTENTIONINTRODUCTIONHOMEAUTOMATIONTHATWASINTRODUCEDINTHISSTUDYWASIMPLEMENTEDBYDESIGNINGTHE“SMARTCONTROLSYSTEMTHATCONTROLSALLAPPLIANCESREMOTELYBYPHONE”THEDESIGNWASBASEDONTHETELEPHONYSTANDARDSWHICHMEANTTHATTHESYSTEMWASQUALIFIEDTOBEINSTALLEDONTHEPUBLICSWITCHINGSYSTEMSTHESYSTEMDESIGNWASUTILIZINGTHEDUALTONEMULTIFREQUENCYDTMFSIGNALSTHATCOULDBEPRODUCEDBYTHETELEPHONESETTHESESIGNALSWERESENTFROMTHEUSERENDTHROUGHTHELOOPWIRETOTHEDESTINATIONEND,WHERETHECONTROLSYSTEMWASSTATIONEDTHESYSTEMCONSISTEDOFTHREEMAJORPARTSTHEFIRSTPARTWASTHERINGDETECTORANDDTMFRECEIVERTHESECONDPARTWASTHEINPUT/OUTPUTINTERFACEUNITTHETHIRDPARTWASTHEPERSONALCOMPUTERWHICHWASPROGRAMMEDWITHTURBOBASICSOFTWARETOPERFORMTHEONLINEOPERATIONSBLOCKDIAGRAMOFTHESYSTEMWASSHOWNINFIGURE1FIGURE1SMARTCONTROLSYSTEMTOCONTROLAPPLIANCESREMOTELYBYPHONEBRIEFOPERATIONOFATELEPHONESETASUMMARYOFTHETELEPHONESETOPERATIONWASGIVENHEREFORTHEREADERTOVISUALIZETHESYSTEMOPERATIONBLOCKDIAGRAMOFATELEPHONESETISSHOWNINFIGURE2第3頁(yè)共16頁(yè)FIGURE2BLOCKDIAGRAMSYSTEMDESIGNTHESYSTEMWASDESIGNEDTORECEIVEANDRESPONDTOTHEDTMFSIGNALSHENCETHECALLERPARTYSHOULDUSEATELEPHONESETEQUIPPEDWITHADTMFKEYPADFORSENDINGANUMBERTELEPHONESETSUSINGTHEDTMFMETHODFORSENDINGATELEPHONENUMBERWEREEQUIPPEDWITHAPUSHBUTTONKEYPADWITH12KEYSWHICHREPRESENTEDTHENUMBERS0THROUGH9ANDTHESYMBOLANDSEEFIGURE3PRESSINGONEOFTHEKEYSCAUSEDTHEDTMFGENERATORTOGENERATETWOTONESINTHEVOICEBAND3003000HZTHEREWASALOWFREQUENCYTONEFOREACHROWANDAHIGHFREQUENCYTONEFOREACHCOLUMNPRESSINGKEY5FOREXAMPLEGENERATEDA770HZTONEANDA1336HZTONEBYUSINGTHEDUALTONEMETHOD12UNIQUECOMBINATIONSWEREPRODUCEDFROMONLYSEVENTONESWHENTHE12POSITIONKEYPADWASUSEDFIGURE3DTMFKEYPADANDFREQUENCIESTHEFREQUENCIESANDTHEKEYPADLAYOUTHAVEBEENINTERNATIONALLYSTANDARDIZEDBUTTHETOLERANCESONINDIVIDUALFREQUENCIESVARIEDINDIFFERENTCOUNTRIESTHENORTHAMERICANSTANDARDSWERE15FORTHEGENERATORANDF20FORTHERECEIVERTHETONESHAVEBEENSELECTEDCAREFULLYSOTHATTHEDTMFRECEIVERINTHEEXCHANGEOFFICEWOULDNOTCONFUSETHEMWITHTHEOTHERTONESTHATMIGHTOCCURONTH6LINETHESEDTMF
下載積分: 10 賞幣
上傳時(shí)間:2024-03-11
頁(yè)數(shù): 16
大小: 0.39(MB)
子文件數(shù):
-
簡(jiǎn)介:PLCCONFIGURATIONANDPROGRAMMINGEXPERIENCEUSINGSTLANGUAGEGKARMAKAR1,ASHUTOSHKABRA,JOSEJOSEPH2,BBBISWAS,RKPATILREACTORCONTROLDIVISIONBHABHAATOMICRESEARCHCENTREMUMBAI–4000851GKARMA,2JJOSEPH}BARCGOVINABSTRACTTHISPAPERATTEMPTSAJOURNEYRIGHTFROMCONFIGURINGAPLC,WRITINGAPPLICATIONPROGRAMTOCODEGENERATIONALONGWITHRUNTIMECONFIGURATIONSANDRTOSABSTRACTIONFOREMBEDDINGITINTOPLCHARDWAREUSINGATYPICALCONTROLLOGICAPPLICATIONTHEIEC611313STLANGUAGEHASBEENUSEDASVEHICLEFORTHISTOURKEYWORDSPLC,ST,POU,CONFIGURATION,RESOURCE,PROGRAM,FB,FUNCTIONIINTRODUCTIONPROGRAMMABLECONTROLLERSPLCARETHEBACKBONEOFMOSTAUTOMATIONPROJECTSPLCSAREUSEDFORCONTROLLINGPURPOSESINVARIOUSINDUSTRIESLIKEPOWERGENERATION,STEELPRODUCTION,CHEMICAL,PETROCHEMICAL,NUCLEARPOWERPLANTSETCAPROGRAMMABLECONTROLLERPLCISANINDUSTRIALCOMPUTERCONTROLSYSTEMTHATCONTINUOUSLYMONITORSTHESTATEOFINPUTDEVICESANDMAKESDECISIONSBASEDUPONAPROGRAMTOCONTROLTHESTATEOFOUTPUTDEVICESPLCISANEXAMPLEOFAREALTIMESYSTEMSINCEOUTPUTRESULTSMUSTBEPRODUCEDINRESPONSETOINPUTCONDITIONSWITHINABOUNDEDTIMEINTHEPASTMANYVENDORSFORPLCSYSTEMSUSEDTHEIROWNPROGRAMMINGLANGUAGESWHICHWEREINCOMPATIBLEWITHOTHERSTOENHANCEREUSINGOFCOMPONENTS,COMPATIBILITYANDINTEROPERABILITYAMONGDIFFERENTPRODUCT,THEIEC61131STANDARDWASINTRODUCEDTOUNIFYTHEMAINDIFFERENTAPPROACHESTHIRDPARTOFIEC61131STANDARDSPECIFIESTHESYNTAXANDSEMANTICSOFAUNIFIEDSUITEOFPROGRAMMINGLANGUAGESFORPROGRAMMABLECONTROLLERSPCSINTHISPAPER,WEDESCRIBEATYPICALCONTROLLOGICAPPLICATIONFORDEMONSTRATIONOFCONFIGURINGAPLC,WRITINGAPPLICATIONPROGRAMANDCODEGENERATIONALONGWITHRUNTIMECONFIGURATIONSANDRTOSABSTRACTIONFOREMBEDDINGITINTOPLCHARDWARETHEPROGRAMMINGLANGUAGESTSTRUCTUREDTEXTHASBEENUSEDTHROUGHOUTTHEPAPERIITHESTUDYEXAMPLEAPROBLEMDEFINITIONASIMPLEEXAMPLEOFCONTROLLINGAPUMPP1ANDITSDISCHARGEVALVEV1ANDSENDINGINFORMATIONTOANYDEVICESAYASCADASTATIONONDEMANDUSECASESUSECASE1READINPUTSREADTHEFOLLOWINGFIELDINPUTSAP1STARTPUSHBUTTONPBSTATUSDISCRETEINPUTBP1STOPPUSHBUTTONPBSTATUSDISCRETEINPUTCV1OPENPUSHBUTTONPBSTATUSDISCRETEINPUTDV1CLOSEPUSHBUTTONPBSTATUSDISCRETEINPUTEP1ON/OFFSTATUSDISCRETEINPUTFREADP1DISCHARGEPRESSUREANALOGINPUTITISATIMEDRIVENTASKREADEVERY10MSUSECASE2CONTROLINTERLOCKSATHEPUMPP11WILLSTARTIFSTARTPBISACTUATEDONCESTARTEDP1WILLCONTINUERUNNINGTILLSTOPPBISACTUATED2WILLSTOPEITHERIFTHESTOPPBISACTUATEDORIFTHEP1DISCHARGEPRESSUREISHIGHBTHEVALVEV11WILLOPENEITHERIFTHEV1OPENISACTUATEDORIFTHEPUMPISSTARTEDAND3SECONDHASBEENELAPSED2WILLCLOSEIFTHEV1CLOSEISACTUATEDPROVIDEDTHEPUMPP1ISNOTRUNNINGUSECASE3COMMUNICATIONSLAVE/SERVERONQUERYFROMANYEXTERNALDEVICEITWILLSENDRESPONSEDATATHEPROTOCOLDETAILSARENOTPARTOFTHISHIGHLEVELPROGRAMMINGIIITHEDOMAINMODELOFPLCTHEDOMAINMODELOFAPLCISDEPICTEDINFIGURE1BELOWFIGURE1PLCDOMAINMODELIVSOFTWAREMODELANDBUILDINGBLOCKSOFIEC611313CONFIGURATIONAPPLICATIONPROGRAMCODEGENERATORFRAMEWORKANDRTOSABSTRACTIONBUILDANDDOWNLOADUTILITYBSTRUCTUREOFTHEBUILDINGBLOCKSPOUSFUNCTION,FUNCTIONBLOCKANDPROGRAMARETHETHREEPROGRAMORGANIZATIONUNITSPOUSDEFINEDBYTHEIEC611313APOUCONTAINSADECLARATIONPARTANDBODY1DECLARATIONOFVARIABLESIEC611313STANDARDUSESVARIABLESTOSTOREANDPROCESSINFORMATIONVARIABLESCANBEASSIGNEDTOACERTAINI/OADDRESSUSINGTHEKEYWORD“AT”ANDCANBEBATTERYBACKEDAGAINSTPOWERFAILUREEACHDECLARATIONOFAPROGRAMORGANIZATIONUNITCONTAINATITSBEGINNINGATLEASTONEDECLARATIONPARTWHICHSPECIFIESTHETYPESANDTHEPHYSICALORLOGICALLOCATIONIFNEEDEDOFTHEVARIABLESUSEDINTHEORGANIZATIONUNIT2BODYOFPOUTHEALGORITHMICBEHAVIOROFPOUISDEFINEDINONEOFTHEFIVELANGUAGESDEFINEDBYTHESTANDARDFBDFUNCTIONBLOCKDIAGRAM,LDLADDERDIAGRAM,STSTRUCTUREDTEXT,ILINSTRUCTIONLISTANDSFCSEQUENTIALFUNCTIONCHARTTHESTLANGUAGEHASACOMPREHENSIVERANGEOFCONSTRUCTSFORASSIGNINGVALUESTOVARIABLES,CALLINGFUNCTIONSANDFUNCTIONBLOCKS,CREATINGEXPRESSIONS,FORCONDITIONALEVALUATIONOFSELECTEDSTATEMENTSANDFORITERATIONCPROGRAMSAPROGRAMISANETWORKOFFUNCTIONSANDFUNCTIONBLOCKSTHATAREABLETOEXCHANGEDATATHROUGHSOFTWARECONNECTIONSAPROGRAMCANBEWRITTENINANYOFTHEDEFINEDPROGRAMMINGLANGUAGESAPROGRAMCANALSOREADANDWRITETOINPUT/OUTPUTVARIABLESANDCOMMUNICATEWITHOTHERPROGRAMSTHEEXECUTIONOFDIFFERENTPARTSOFAPROGRAM,FOREXAMPLESELECTEDFUNCTIONBLOCKS,MAYBECONTROLLEDUSINGTASKSFOROURSTUDYEXAMPLE,WEHAVEFOLLOWINGPROGRAMS1PUMPP1CONTROL2VALVEV1CONTROLTHESTPROGRAMOFVALVECONTROLISGIVENHEREASITUSESONDELAYTIMERTONINADDITIONTOOTHERSTPROGRAMMINGFEATURESPROGRAMVALVEV1CONTROLVAR_INPUTV1OPENCBOOLV1CLOSECBOOLP1STARTCBOOLP1STATUSBOOLEND_VARVARVTIMERTONEND_VARVAR_TEMPTBOOLEND_VARVAR_OUTPUTV1OPENBOOLV1MOVTOOPENV1CLOSEBOOLV1MOVTOCLOSEEND_VARVTIMERINP1STARTC,PTT3ST1VTIMERQIFV1OPENCORT1THENV1OPENTRUEV1CLOSEFALSEEND_IFIFV1CLOSECTRUEANDP1STATUSFALSETHENV1OPENFALSEV1CLOSETRUEEND_IFEND_PROGRAM3SCANINPUTDFUNCTIONANDFUNCTIONBLOCKSTHESEARETHEBASICBUILDINGBLOCKS,CONTAININGADATASTRUCTUREANDANALGORITHMFOROURSTUDYEXAMPLE,1THEREQUIREDFUNCTIONBLOCKSAREREADANALOGININANYPLC,READINGINPUTSFROMPHYSICALI/OCARDSISUNAVOIDABLEFUNCTION_BLOCKREADANALOGINVAR_EXTERNALCONSTANTNUM_ALOGIN_CARDUINTEND_VARVAR_OUTPUTALOGIN1ARRAY1NUM_ALOGIN_CARDOFANALOG_16_DATAEND_VARALOGIN1READALOGINNUM_ALOGIN_CARDEND_FUNCTION_BLOCKREADDIGITALINTON2THEREQUIREDFUNCTIONSAREREADALOGFUNCTIONREADALOGARRAY1NUM_ALOGIN_CARDOFANALOG_16_DATAVAR_INPUTNOALOGCARDSUINTEND_VARFUNCTIONBODYEND_FUNCTIONREADDIGEGLOBALANDDIRECTVARIABLESAGLOBALVARIABLECANBEDECLAREDATPROGRAMLEVEL,RESOURCELEVELORCONFIGURATIONLEVELGLOBALVARIABLESPROVIDEAMEANSFORTRANSFERRINGDATAANDINFORMATIONBETWEENPROGRAMSORBETWEENFUNCTIONBLOCKSRESIDINGWITHINDIFFERENTPROGRAMSDIRECTLYREPRESENTEDVARIABLESEGIX11,IW11,QX11AREUSEDTOADDRESSTHEMEMORYLOCATIONSWITHINAPLCDIRECTLY
下載積分: 10 賞幣
上傳時(shí)間:2024-03-13
頁(yè)數(shù): 5
大?。?0.2(MB)
子文件數(shù):
-
簡(jiǎn)介:中文中文5439字畢業(yè)設(shè)計(jì)論文外文資料翻譯學(xué)院專業(yè)過程裝備與控制工程姓名學(xué)號(hào)外文出處JOURNALOFPROCESSCONTROL2006,16179191附件1外文資料翻譯譯文;2外文原文。指導(dǎo)教師評(píng)語簽名年月日用外文寫44提供了一個(gè)機(jī)會(huì),改善及時(shí)性和實(shí)用性測(cè)量的數(shù)據(jù)。通常一個(gè)現(xiàn)代化的工廠具有相當(dāng)多的的測(cè)量數(shù)據(jù)可供分析和控制(1)在工具層面,實(shí)時(shí)數(shù)據(jù)反映了設(shè)備的健康狀況和提供反饋并實(shí)時(shí)控制(2)綜合測(cè)量和在線測(cè)量數(shù)據(jù)的幾何尺寸可進(jìn)行后期處理,有輕微的計(jì)量延遲(3)樣品和最終電氣測(cè)試(電子測(cè)試)提供數(shù)據(jù)與中期或長(zhǎng)期的電性能時(shí)間延遲,但他們最重要的信息制造業(yè)的成效。先進(jìn)的控制手段與優(yōu)化方法應(yīng)盡量在所有的信息的使用綜合等級(jí)的高效率生產(chǎn)和嚴(yán)格的產(chǎn)品質(zhì)量控制。監(jiān)測(cè)和控制的半導(dǎo)體制造程序已經(jīng)在一些美國(guó)的大學(xué)和工業(yè)研究實(shí)驗(yàn)室研發(fā)出來。作為代表的有UC伯克利28,32對(duì)統(tǒng)計(jì)建模與控制等離子蝕刻機(jī),密歇根實(shí)時(shí)運(yùn)行多變量控制22,以及麻省理工學(xué)院在不同的傳感器和控制技術(shù)7,8。由于缺乏現(xiàn)場(chǎng)傳感器大部分控制開發(fā)工作從運(yùn)行(R2R)控制策略12,41。在馬里蘭大學(xué)研究小組貢獻(xiàn)的運(yùn)行區(qū)控制2,5,53。領(lǐng)先的半導(dǎo)體制造商協(xié)會(huì)SEMATECH發(fā)布了在等離子設(shè)備故障檢測(cè)和診斷的幾種基準(zhǔn)問題4。自適應(yīng)非線性R2R控制問題被提出。模型預(yù)測(cè)適用于R2R控制并具有額外的處理能力,可以明確的設(shè)定系統(tǒng)參數(shù)19。美國(guó)德州大學(xué)奧斯汀分校,我們已經(jīng)開發(fā)(一)穩(wěn)定的條件和多變量EWMA的調(diào)整方針雙控制EWMA的計(jì)量延誤20,21,(二)多元統(tǒng)計(jì)監(jiān)測(cè)的區(qū)域貿(mào)易協(xié)定和蝕刻機(jī)52,51,(三)多元統(tǒng)計(jì)控制從光刻技術(shù)的計(jì)量數(shù)據(jù)光盤14。其他新的發(fā)展,控制和故障檢測(cè)是在最近由SEMATECH組織的SPIE會(huì)議和AEC/APC的專題討論會(huì)上由德爾卡斯蒂略和赫爾維茨15和莫恩等總結(jié)的34。制造公司,像AMD,英特爾,摩托羅拉,德州儀器和小的應(yīng)用廠商像APPLIEDMATERIALS,BROOKSPRIAUTOMATION,ANDYIELDDYNAMICS是使用APC的技術(shù)生產(chǎn)線的領(lǐng)頭人。在本文中,我們說明如何區(qū)分半導(dǎo)體類比制造工廠和化學(xué)工廠并提出一個(gè)分層優(yōu)化控制系統(tǒng)半導(dǎo)體晶圓廠控制。示意圖如圖1,這個(gè)理論是由秦和桑德曼首先提出的38。裝備水平控制涉及的工具自動(dòng)反饋控制參數(shù)和小規(guī)模運(yùn)行控制使用的綜合計(jì)量。第二個(gè)層次的運(yùn)行控制涉及在線測(cè)量的前饋使用和反饋控制。第三個(gè)層次是島嶼控制。層次結(jié)構(gòu)的頂層是工廠全控制,這是最高級(jí)別的優(yōu)化,通過重新計(jì)算所需的最優(yōu)幾何目標(biāo)而把消耗控制在劑量較低的水平。該文件的組織如下。我們首先提出為300毫米設(shè)備和計(jì)量工具和材料處理高度自
下載積分: 10 賞幣
上傳時(shí)間:2024-03-15
頁(yè)數(shù): 22
大小: 0.47(MB)
子文件數(shù):
-
簡(jiǎn)介:PROCEDIAENGINEERING6920141469–1474AVAILABLEONLINEATWWWSCIENCEDIRECTCOM18777058?2014THEAUTHORSPUBLISHEDBYELSEVIERLTDOPENACCESSUNDERCCBYNCNDLICENSESELECTIONANDPEERREVIEWUNDERRESPONSIBILITYOFDAAAMINTERNATIONALVIENNADOI101016/JPROENG201403143SCIENCEDIRECT24THDAAAMINTERNATIONALSYMPOSIUMONINTELLIGENTMANUFACTURINGANDAUTOMATION,2013APPLICATIONOFPLANTWIDECONTROLSTRATEGYTOTHECATALYTICCRACKINGPROCESSCRISTINAPOPAPETROLEUM–GASUNIVERSITYOFPLOIE?TI,39BUCURE?TIBLVD,PLOIE?TI,ROMANIAABSTRACTTHISPAPERPRESENTSANAPPLICATIONOFPLANTWIDECONTROLSTRATEGYFORACOMPLEXPROCESS,LIKECATALYTICCRACKINGPROCESSTHEPLANTWIDECONTROLSTRATEGYASSISTSTHEENGINEERINDETERMININGHOWTOCHOOSETHEBESTMANIPULATED,CONTROLLEDANDMEASUREDVARIABLESINTHEPLANT,WHENISUSINGADVANCEDCONTROLTECHNIQUESSUCHMPCTHERESULTOFAPPLYINGPLANTWIDECONTROLTOCATALYTICCRACKINGPROCESSISAHIERARCHICALCONTROLSTRUCTURE,WHICHISORGANIZEDONTHREELEVELS,WITHTWOADVANCEDCONTROLTECHNIQUESFORTHESECONDLEVELFROMECONOMICPOINTOFVIEW,THEDEVELOPMENTANDTHEIMPLEMENTATIONAHIERARCHICALCONTROLSTRUCTUREFORTHECATALYTICCRACKINGPROCESSISLEADINGTOINCREASEPLANTEFFICIENCY?2014THEAUTHORSPUBLISHEDBYELSEVIERLTDSELECTIONANDPEERREVIEWUNDERRESPONSIBILITYOFDAAAMINTERNATIONALVIENNAKEYWORDSPLANTWIDECONTROL,HIERARCHICALCONTROL,FLUIDCATALYTICCRACKING1INTRODUCTIONTHEFLUIDCATALYTICCRACKINGISANIMPORTANTPROCESSINREFINERIESFORTRANSFORMINGHEAVYHYDROCARBONSINTOMOREVALUABLELIGHTERPRODUCTSTHISPROCESSCONTAINSTHREEMAINCOMPONENTSRISER,STRIPERANDREGENERATOR,SEEFIG1INTHERISER,HOTCATALYSTISBROUGHTINCONTACTWITHTHEVAPORIZEDFEEDSTOCKANDCRACKINGREACTIONTAKESPLACETHESTRIPER,LOCATEDATTHEREACTORTOP,BEINGFORMEDOFACYCLONESSYSTEMFORTHESEPARATIONOFTHEFEEDSTOCKANDTHEREACTORPRODUCTSINTHEGASEOUSPHASE,FROMTHECATALYSTPARTICLESTHEREGENERATOR,INWHICHTHECOKEDEPOSITEDONTHECATALYSTDURINGTHECRACKINGREACTION,ISBURNTOFFTOREGENERATETHECATALYSTTHEREGENERATEDCATALYSTISCIRCULATEDBACKTOTHERISERWHILETHECRACKEDPRODUCTSARESENTTOTHEFRACTIONATORSFORRECOVERYCORRESPONDINGAUTHOREMAILADDRESSCEFTENEUPGPLOIESTIRO?2014THEAUTHORSPUBLISHEDBYELSEVIERLTDOPENACCESSUNDERCCBYNCNDLICENSESELECTIONANDPEERREVIEWUNDERRESPONSIBILITYOFDAAAMINTERNATIONALVIENNA1471CRISTINAPOPA/PROCEDIAENGINEERING6920141469–14742PLANTWIDECONTROLOVERVIEWTHEAPPROACHINTOAHIERARCHICALMANNEROFTHECONTROLACTIVITIESASSOCIATEDTOACHEMICALPLANTISKNOWNINSPECIALIZEDLITERATUREASPLANWIDECONTROLPRACTICALLY,THISAPPROACHISADESIGNMETHODFORCONTROLSYSTEMBASEDONSTRUCTURALDECISIONSANDCONSISTSINFOURMAJORSTEPS,ASFOLLOWS1ASPECIFYTHEHIERARCHICALCONTROLSYSTEMDESIGNOBJECTIVES,IMPLYINGA1THEPLANTPRODUCTIONANDCONTROLOBJECTIVEA2IDENTIFYPROCESSCONSTRAINTSTHATMUSTBESATISFIED,INCLUDINGSAFETY,ENVIRONMENTAL,ANDQUALITYRESTRICTIONSBTOPDOWNANALYSISWHICHCONSISTSB1IDENTIFYTHEPROCESSVARIABLES,CONTROLDEGREESOFFREEDOM,CONTROLSTRUCTUREANDOPTIONSFORDECOMPOSITIONB2ESTABLISH,INCONCEPTUALFORM,THEOVERALLCONTROLSTRUCTURECDEVELOPABOTTOM–UPDESIGN,WHICHSUPPOSESC1DEVELOPASTRATEGYFORAREGULATORCONTROLC2EXAMINETHEPOTENTIALOFAPPLYINGADVANCEDCONTROLSTRATEGIESC3EVALUATETHEECONOMICBENEFITSOFREALTIMEOPTIMIZATIONDVALIDATETHEPROPOSEDCONTROLSTRUCTURETHESESTEPAREBASEDONTHECOMBINEDTOPDOWN,ANDBOTTOM–UPAPPROACHESOF1AND2ANDTHEHIERARCHICALORGANIZATIONTHEPLANTWIDECONTROLSTRATEGYHASBEENSTUDIESBYDIFFERENTCHEMICALPROCESSCOMPLEXLIKEHDAPROCESS3,ETHYLBENZENEPROCESS4,VCMPLANT5,TENNESSEEASTMAN6,REACTORSEPARATORRECYCLESYSTEM7,ACETYLENEHYDROGENATIONPROCESS8ALLTHESESTUDIESHAVECONFIRMEDIMPROVEDOFTHEPERFORMANCESECONOMICFOREACHPLANT3APPLICATIONOFPLANTWIDECONTROLSTRATEGYTOTHECATALYTICCRACKINGPROCESSTHEHIERARCHICALCONTROLSTRUCTUREOBTAINEDBYAUTHORAFTERAPPLICATIONOFTHEPLANTWIDESTRATEGYISPRESENTEDINFIGURE2THECONTROLSTRUCTURECONTAINSTHREELEVELSTHECONVENTIONALCONTROLLEVELTHEADVANCEDCONTROLLEVELANDTHEOPTIMALCONTROLLEVELSTEPATHEOBJECTIVESOFTHECONTROLSYSTEMDESIGNEDSPECIFICTOCATALYTICCRACKINGPROCESSWEREPRESENTEDINTHEINTRODUCTIONPARTOFTHEPAPERTHECONSTRAINTSOFTHEPROCESSAREPRESENTEDINTABLE1TABLE1THECONSTRAINTOFTHEPROCESSVARIABLESSIGNIFICANCECONSTRAINTSTYPECONSTRAINTSTHELIMITTRRISEROUTPUTTEMPERATURETECHNOLOGICALMAXRRTT?570?CTREGREGENERATORTEMPERATURETECHNOLOGICALMAXREGREGTT?800?C3P?PRESSUREDROPBETWEENREACTORANDREGENERATORSAFETYMAXPP33???3BARHREGCATALYSTLEVELINREACTORTECHNOLOGICALMAXREGREGMINREGHHH??26MSTEPBTHESECONDSTEPSUPPOSESTHESELECTIONOFTHEPROCESSVARIABLESANDTHEMANIPULATEDVARIABLESASSIGNEDFOREACHHIERARCHICALLEVEL?THETHIRDLEVEL–THESPECIFICVARIABLEISTHEYIELDGASOLINEWHICHISSUBJECTEDTOMAXIMIZATIONANDMANIPULATEDVARIABLESIDENTIFIEDARETHERISEROUTLETTEMPERATURETRIANDREGENERATORTEMPERATURETREGITHESEVARIABLESARETHESETPOINTFORTHESECONDLEVELTHEPERTURBATIONSOFTHISLEVELARETHEFEEDSTOCKPROPERTIESANDCATALYSTPROPERTIES
下載積分: 10 賞幣
上傳時(shí)間:2024-03-13
頁(yè)數(shù): 6
大?。?0.62(MB)
子文件數(shù):
-
簡(jiǎn)介:本文是中英雙語對(duì)照畢業(yè)設(shè)計(jì)論文外文文獻(xiàn)翻譯,下載之后無需調(diào)整復(fù)雜的格式直接可用一輩子也就一次的事外文標(biāo)題EXPLOITINGBLUETOOTHONANDROIDMOBILEDEVICESFORHOMESECURITYAPPLICATION外文作者KAKATAMMADHANRAYAPAREDDY,MRVASHOK,PRAVIKUMAR文獻(xiàn)出處INTERNATIONALJOURNALOFVLSISYSTEMDESIGNANDCOMMUNICATIONSYSTEM,VOL3,ISSUE10,2019如覺得年份太老,可改為近2年,畢竟很多畢業(yè)生都這樣做英文2961單詞,18812字符字符就是印刷符,中文4751漢字。(如果字?jǐn)?shù)多了,可自行刪減,大多數(shù)學(xué)校都是要求選取外文的一部分內(nèi)容進(jìn)行翻譯的。)EXPLOITINGBLUETOOTHONANDROIDMOBILEDEVICESFORHOMESECURITYAPPLICATIONABSTRACTTHEREMOTEAPPLIANCESCONTROLSYSTEMBASEDONTHEANDROIDSMARTPHONEGUIISDESIGNEDONANDROIDSMARTPHONEAUSERLOGSINTOTHESMARTANDROIDPHONEINTERFACE,ANDCLICKSTHEBUTTONSGENTLYTOSENDMESSAGECOMMANDSFROMTHEGUIWHICHWILLBETRANSMITTEDTOHOMEINFORMATIONCENTERTHROUGHTHEGSMNETWORKTHENTHEAVRATMEGAPROCESSORRECOGNIZESTHESPECIFIEDCOMMAND,ANDCONTROLSTHEHOMEAPPLIANCESWITCHESINTHEWIRELESSRADIOFREQUENCYMANNERTOACHIEVEREMOTECONTROLOFAPPLIANCESULTIMATELYTHISSEMINARFOCUSESONTHEDESIGNOFANDROIDTERMINAL,THECOMMUNICATIONBETWEENPICANDGSMMODULE,THEREALIZATIONOFTHEWIRELESSMODULEDEVICE’SDRIVER,THEDIFFICULTYINSUPPLYINGTHEAPPROPRIATELOWVOLTAGEDCFORMCUANDWIRELESSMODULEJUSTBYASINGLELIVEWIRETHEUSERSCANMANIPULATEAPPLIANCESANYTIME,ANYWHERE,LETTINGOURHOUSESBECOMEMOREANDMOREAUTOMATEDANDINTELLIGENTTHEREARESOMEPROBLEMSINTHEPCMONITORTERMINAL,SUCHASITSGREATBULK,INCONVENIENCETOCARRY,HIGHCOST,LIMITEDMONITORINGRANGEANDSOONTHEREFORE,IT’SAGOODCHOICETODESIGNATERMINALBASEDONPHONEIINTRODUCTIONWITHTHEDEVELOPMENTOFTECHNOLOGYANDTHECONTINUOUSIMPROVEMENTOFPEOPLESOFTECHNOLOGY,ASSISTANTPROJECTSCANBEDEVELOPEDTOOVERCOMETHEIRDIFFICULTIESSMARTHOMESCANALSOBEUSEDTOSUPPORTDISABLEDPEOPLE,PROVIDINGSAFE,SECUREANDEMPOWERINGENVIRONMENTSTHESYSTEMCANALLOWTHEUSERTOCONTROLMANYFEATURESORAUTOMATETHEMTHEENVIRONMENTCANALSOBEMONITOREDBYTHESMARTHOMESYSTEMTOENSURESAFETYANDALERTPEOPLEWHENTHEREISSOMEDANGEROUSSITUATIONTHEUSERSCANMANIPULATEAPPLIANCESANYTIME,ANYWHERE,LETTINGOURHOUSESBECOMEMOREANDMOREAUTOMATEDANDINTELLIGENTATPRESENT,THEPCISUSEDASTHEREMOTECONTROLTERMINALFORMOSTHOMECONTROLSYSTEMSHOWEVER,THEREARESOMEPROBLEMSINTHEPCMONITORTERMINAL,SUCHASITSGREATBULK,INCONVENIENCETOCARRY,HIGHCOST,ANDLIMITEDMONITORINGRANGEANDSOONTHEREFORE,IT’SAGOODCHOICETODESIGNATERMINALBASEDONPHONEIISYSTEMARCHITECTUREASYSTEMOVERVIEWTHESYSTEMISCOMPOSEDOFANDROIDMOBILETERMINAL,GSMNETWORK,HOMEINFORMATIONCENTERANDWIRELESSSWITCHANDTHEARCHITECTUREOFTHESYSTEMISSHOWNINFIG1ATANYMOMENTTHEGUIINPHONEALLOWSTHEUSERTOMANUALLYCONTROLANYOFAPPLICATIONSINTHEROOMFIRSTOFALL,THEACTIONLISTENERSHOULDBESETFOREACHBUTTONWHICHWILLBECLICKEDTOSENDMESSAGECOMMANDVIATHEGSMNETWORKAFTERREADINGANDPARSINGTHECOMMANDS,PICPROCESSORCONTROLSTHEWIRELESSMODULETOSENDTHEADDRESSANDDATACODESTOACHIEVEREMOTECONTROLOFAPPLIANCESULTIMATELY
下載積分: 10 賞幣
上傳時(shí)間:2024-03-15
頁(yè)數(shù): 23
大?。?0.37(MB)
子文件數(shù):
-
簡(jiǎn)介:此文檔是畢業(yè)設(shè)計(jì)外文翻譯成品(含英文原文中文翻譯),無需調(diào)整復(fù)雜的格式下載之后直接可用,方便快捷本文價(jià)格不貴,也就幾十塊錢一輩子也就一次的事外文標(biāo)題INTELLIGENTRESIDENTIALSECURITYALARMANDREMOTECONTROLSYSTEMBASEDONSINGLECHIPCOMPUTER外文作者LIUZHENYA,WANGZHENDONG,CHENRONG,文獻(xiàn)出處20183RDIEEECONFERENCEONINDUSTRIALELECTRONICSANDAPPLICATIONS如覺得年份太老,可改為近2年,畢竟很多畢業(yè)生都這樣做英文1831單詞,11975字符字符就是印刷符,中文3007漢字。INTELLIGENTRESIDENTIALSECURITYALARMANDREMOTECONTROLSYSTEMBASEDONSINGLECHIPCOMPUTERABSTRACTTHISPAPERPRESENTSINTELLIGENTRESIDENTIALBURGLARALARM,EMERGENCYALARM,FIREALARM,TOXICGASLEAKAGEREMOTEAUTOMATICSOUNDALARMANDREMOTECONTROLSYSTEM,WHICHISBASEDON89C51SINGLECHIPCOMPUTERTHESYSTEMCANBEAUTOMATICALARM,AUTOMATICCALLINGTHEPOLICEHOTLINENUMBERITCANBEUSEDVOICEALARMANDSHOWALARMOCCURREDADDRESSITCANSETUPANDMODIFYUSERPASSWORDITCANBERECORDABLEANDVOICESUGGESTIONITCANBEUSEDTELEPHONEREMOTECONTROLELECTRICALPOWERTHEALARMSYSTEMHASDESIGNINNOVATION,MULTIPLYFUNCTION,LOWCOST,HIGHRELIABILITYANDSOONIINTRODUCTIONWITHTHECOMPUTERTECHNOLOGYANDCONTROLTECHNOLOGYANDCOMMUNICATIONALTECHNOLOGY’SDEVELOPMENT,PEOPLE’SLIVINGSTANDARDHASIMPROVEDINCREASINGLYPEOPLESLIVINGCONDITIONSHAVECHANGED,SUCHASTHELIVINGENVIRONMENT’SSECURITYANDHOWCOMFORTABLETHEYFEELSOTHEINTELLIGENTRESIDENTIALBUILDING’SAUTOMATICEMERGEASTHETIMESREQUIREINTELLIGENTRESIDENTIALMUSTHAVESAFETYPRECAUTIONS,ANTITHEFTALARM,FIREALARM,TOXICGASLEAKAGEAUTOMATICALARMANDEMERGENCYCALLITISCIRCUIT,TELEPHONEINTERFACE,VOICECIRCUIT,DTMFCODECCIRCUIT,TELEPHONESIGNALDETECTIONCIRCUITANDTHEMAINCONTROLCIRCUITEACHMODULEISDESCRIBEDASFOLLOWSFIG1SYSTEMARCHITECTURECHARTADETECTINGCIRCUITTHEPARTCIRCUITISASTHEDETECTIONPARTOFTHEWHOLESYSTEM,USEDTODETECTTHEFTCASE,FIRE,TOXICGASLEAKAGEANDEMERGENCYCALLSIGNALSTHEFTPROOFDETECTIONISTOCOMPLETETHROUGHPYROELECTRICINFRAREDSENSORSENSORSAREINSTALLEDONTHEBALCONY,WINDOWSANDOTHERPLACEWHERETHIEVESAREEASYTOENTERTHEPARTCIRCUITISATTHEREADYSTATEUNDERNORMALCIRCUMSTANCESENSORSCATCHTHEFTINFORMATIONWHENSOMEONEENTERSTHESCOPEOFTHESURVEILLANCETHEN,WIRELESSMODULEWILLSENDTHEINFORMATIONTOTHE89C51SINGLECHIPCOMPUTERTHEDETECTIONOFFIREANDTOXICGASISTOCOMPLETEBYTHECORRESPONDINGDETECTIONSENSORS,EMERGENCYCALLSIGNALISSENTFROMUSERHANDHOLDREMOTECONTROLBWIRELESSTRANSMITTERRECEIVERCIRCUITTHETRANSMITTINGANDRECEIVINGCIRCUITOFTHEPARTMAKESUSEOFCMOSMANUFACTURINGPROCESSPRODUCEDBYALOWCOSTPT2262/PT2272WIRELESSREMOTECONTROLMODULETHEOPERATINGFREQUENCYOFITIS2MHZANDTHECOMMUNICATIONDISTANCEOFITIS100METERSABOVEUNDERNORMALCIRCUMSTANCES,TRANSMITTINGANDRECEIVINGMODULESAREINDORMANTSTATUSTHEMODULEISINNONDORMANTSTATUSWHENBEINDANGER,THENCODEDSIGNALISTRANSMITTEDTHERECEIVINGMODULEHASRECEIVEDHIGHFREQUENCYSIGNALDECODE,GENERATINGINTERRUPTSIGNALATTHESAMETIME
下載積分: 5 賞幣
上傳時(shí)間:2024-05-21
頁(yè)數(shù): 16
大?。?0.29(MB)
子文件數(shù):
-
下載積分: 13 賞幣
上傳時(shí)間:2024-01-07
頁(yè)數(shù): 0
大?。?0.63(MB)
子文件數(shù):
-
下載積分: 14 賞幣
上傳時(shí)間:2024-01-07
頁(yè)數(shù): 0
大?。?2.86(MB)
子文件數(shù):
-
下載積分: 13 賞幣
上傳時(shí)間:2024-01-07
頁(yè)數(shù): 0
大?。?0.72(MB)
子文件數(shù):