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低壓開關(guān)柜智能監(jiān)控系統(tǒng)畢業(yè)設(shè)計(jì)-資料下載頁

2025-06-29 10:26本頁面
  

【正文】 為我/海外廣泛使用。P0口不同產(chǎn)量的電路,請(qǐng)聯(lián)系電力負(fù)荷就在有阻力。事實(shí)上,反抗是兩種影響,同時(shí)負(fù)責(zé)操作:1配量負(fù)責(zé),定期阻力。另一種可能是導(dǎo)致這兩個(gè)國家與接近,使總經(jīng)理改變阻值近似零或一組值兩形勢十分沉重. 0時(shí),大約是反抗,可以寄以很高的速度; 如果阻值很大,P1口,以妨礙國家引進(jìn)高、P1口高產(chǎn)量的電力平時(shí),它是利用電流負(fù)載提供庇護(hù),以此抵制和不必回答。在這里介紹的是用作碼頭,必須寫1到相應(yīng)的門閂頭也使操作結(jié)束。相對(duì)約20,000ohms因負(fù)載阻力,因?yàn)樵诂F(xiàn)場40,000ohms,不會(huì)產(chǎn)生影響的數(shù)據(jù),輸入。P2口的結(jié)構(gòu)有些類似于P0口有開關(guān)。這是促使口腔類似,但有些不是嘴巴大轉(zhuǎn)換控制P1. P3口人的多功能港口,嘴也越來越多,P1比、3和4緩沖門。這兩個(gè)部分,使她除了精確的雙向功能與P1口僅,也可以使用第二功能每針。 、一門三轉(zhuǎn)功能實(shí)際上 它決定將產(chǎn)量數(shù)據(jù)信號(hào)門閂第二產(chǎn)出功能。在擔(dān)任W=1時(shí),問到生產(chǎn)信號(hào),作為在Q=1時(shí),信號(hào)線可以生產(chǎn)W。節(jié)目時(shí),它是第一個(gè)功能,但仍是第二個(gè)功能不用軟件P3口提前成立。這不是硬件是在自動(dòng)有兩個(gè)功能outputted當(dāng)CPU進(jìn)行社會(huì)主義和尋求地點(diǎn)(所在地或字節(jié))訪P3口/不是在持久排隊(duì),有在硬件門閂促使=1。THE經(jīng)營原則P3口類似于P1口。生產(chǎn)級(jí)的P3口,P1,P1,內(nèi)有連接負(fù)載阻力劃,每個(gè)人可以帶動(dòng)4產(chǎn)出模型LSTTL載荷。而作為輸入口,任何NMOS電路可驅(qū)動(dòng)TTL或P1的8051一個(gè)電腦芯片P3口的正常發(fā)展。由于產(chǎn)量等作出抵抗的人,也可以公開方式收藏或流失的根源就是反抗的方式,要求公開,不須具備抵抗繪畫。 別人都準(zhǔn)確雙向口也。當(dāng)行為投入,要寫出一首相應(yīng)的港口與門閂。以80c51一個(gè)計(jì)算機(jī)芯片,只能提供港口毫安的電流電產(chǎn)出,它是生產(chǎn)口去要求一個(gè)普通的計(jì)算是將晶體管、接觸的阻力應(yīng)該在港口及半導(dǎo)體基地同時(shí)為了抑制高電力輸出P1~P3級(jí)是恢復(fù)王位是一個(gè)著手運(yùn)作一個(gè)計(jì)算機(jī)芯片。其主要功能是將電腦變成0000h開始,使一個(gè)開始進(jìn)行計(jì)算機(jī)芯片進(jìn)行程序0000h單位。除了那些進(jìn)入正常initialized系統(tǒng),因?yàn)樗某绦虿僮魇д`或操作失誤不多,為了擺脫困境,必須按國家和恢復(fù)王位,恢復(fù)太重要了。這是一項(xiàng)投入恢復(fù)王位,結(jié)束了在8051年中國信息表寄?;謴?fù)王位高有效信號(hào),應(yīng)保持24震撼周期(機(jī)器周期,2)有效時(shí)間段。 6如果使用頻率前去輝煌,恢復(fù)王位信號(hào)完成期限不得超過4微妙的王位,恢復(fù)營業(yè)。邏輯電路生產(chǎn)情況,恢復(fù)王位的信號(hào)?;謴?fù)王位的電路兩部分組成,包括外部的芯片完全。外界產(chǎn)生電路恢復(fù)王位信號(hào)(表)交給史密特的啟動(dòng),恢復(fù)王位樣品電路產(chǎn)量,史密特觸發(fā)不斷每一s5p機(jī)器周期有一次,光有與恢復(fù)王位和經(jīng)營所需insidly信號(hào)。恢復(fù)王位抵抗一般線路、電容參數(shù)適合6精彩震撼,是否能恢復(fù)王位高信號(hào)機(jī)會(huì)大于2周期保證。正在恢復(fù)王位是簡單的電路,其作用是非常重要的。 張一電腦芯片系統(tǒng)可正常運(yùn)作,應(yīng)先檢查一下,才能恢復(fù)王位沒有成功。檢測可以流行頭和監(jiān)督寄與初步示波器,并把恢復(fù)王位的關(guān)鍵,波的形式,并認(rèn)為有足夠的距離輸出(瞬間),也就是通過它來恢復(fù)電路值進(jìn)行實(shí)現(xiàn)改變。目前單片機(jī)滲透到我們生活的各個(gè)領(lǐng)域,幾乎很難找到哪個(gè)領(lǐng)域沒有單片機(jī)的蹤跡。導(dǎo)彈的導(dǎo)航裝置,飛機(jī)上各種儀表的控制,計(jì)算機(jī)的網(wǎng)絡(luò)通訊與數(shù)據(jù)傳輸,工業(yè)自動(dòng)化過程的實(shí)時(shí)控制和數(shù)據(jù)處理,廣泛使用的各種智能IC卡,民用豪華轎車的安全保障系統(tǒng),錄像機(jī)、攝像機(jī)、全自動(dòng)洗衣機(jī)的控制,以及程控玩具、電子寵物等等,這些都離不開單片機(jī)。更不用說自動(dòng)控制領(lǐng)域的機(jī)器人、智能儀表、醫(yī)療器械了。因此,單片機(jī)的學(xué)習(xí)、開發(fā)與應(yīng)用將造就一批計(jì)算機(jī)應(yīng)用與智能化控制的科學(xué)家、工程師。 單片機(jī)廣泛應(yīng)用于儀器儀表、家用電器、醫(yī)用設(shè)備、航空航天、專用設(shè)備的智能化管理及過程控制等領(lǐng)域,大致可分如下幾個(gè)范疇: (1)在智能儀器儀表上的應(yīng)用 單片機(jī)具有體積小、功耗低、控制功能強(qiáng)、擴(kuò)展靈活、微型化和使用方便等優(yōu)點(diǎn),廣泛應(yīng)用于儀器儀表中,結(jié)合不同類型的傳感器,可實(shí)現(xiàn)諸如電壓、功率、頻率、濕度、溫度、流量、速度、厚度、角度、長度、硬度、元素、壓力等物理量的測量。采用單片機(jī)控制使得儀器儀表數(shù)字化、智能化、微型化,且功能比起采用電子或數(shù)字電路更加強(qiáng)大。例如精密的測量設(shè)備(功率計(jì),示波器,各種分析儀)。 (2)在工業(yè)控制中的應(yīng)用 用單片機(jī)可以構(gòu)成形式多樣的控制系統(tǒng)、數(shù)據(jù)采集系統(tǒng)。例如工廠流水線的智能化管、電梯智能化控制、各種報(bào)警系統(tǒng),與計(jì)算機(jī)聯(lián)網(wǎng)構(gòu)成二級(jí)控制系統(tǒng)等。 (3)在家用電器中的應(yīng)用 可以這樣說,現(xiàn)在的家用電器基本上都采用了單片機(jī)控制,從電飯褒、洗衣機(jī)、電冰箱、空調(diào)機(jī)、彩電、其他音響視頻器材、再到電子秤量設(shè)備,五花八門,無所不在。 (4)在計(jì)算機(jī)網(wǎng)絡(luò)和通信領(lǐng)域中的應(yīng)用 現(xiàn)代的單片機(jī)普遍具備通信接口,可以很方便地與計(jì)算機(jī)進(jìn)行數(shù)據(jù)通信,為在計(jì)算機(jī)網(wǎng)絡(luò)和通信設(shè)備間的應(yīng)用提供了極好的物質(zhì)條件,現(xiàn)在的通信設(shè)備基本上都實(shí)現(xiàn)了單片機(jī)智能控制,從手機(jī),電話機(jī)、小型程控交換機(jī)、樓宇自動(dòng)通信呼叫系統(tǒng)、列車無線通信、再到日常工作中隨處可見的移動(dòng)電話,集群移動(dòng)通信,無線電對(duì)講機(jī)等。 (5)單片機(jī)在醫(yī)用設(shè)備領(lǐng)域中的應(yīng)用 單片機(jī)在醫(yī)用設(shè)備中的用途亦相當(dāng)廣泛,例如醫(yī)用呼吸機(jī),各種分析儀,監(jiān)護(hù)儀,超聲診斷設(shè)備及病床呼叫系統(tǒng)等等。 (6)在各種大型電器中的模塊化應(yīng)用 某些專用單片機(jī)設(shè)計(jì)用于實(shí)現(xiàn)特定功能,從而在各種電路中進(jìn)行模塊化應(yīng)用,而不要求使用人員了解其內(nèi)部結(jié)構(gòu)。如音樂集成單片機(jī),看似簡單的功能,微縮在純電子芯片中(有別于磁帶機(jī)的原理),就需要復(fù)雜的類似于計(jì)算機(jī)的原理。如:音樂信號(hào)以數(shù)字的形式存于存儲(chǔ)器中(類似于ROM),由微控制器讀出,轉(zhuǎn)化為模擬音樂電信號(hào)(類似于聲卡)。 在大型電路中,這種模塊化應(yīng)用極大地縮小了體積,簡化了電路,降低了損壞、錯(cuò)誤率,也方便于更換。 (7)單片機(jī)在汽車設(shè)備領(lǐng)域中的應(yīng)用 單片機(jī)在汽車電子中的應(yīng)用非常廣泛,例如汽車中的發(fā)動(dòng)機(jī)控制器,基于CAN總線的汽車發(fā)動(dòng)機(jī)智能電子控制器,GPS導(dǎo)航系統(tǒng),abs防抱死系統(tǒng),制動(dòng)系統(tǒng)等等。 此外,單片機(jī)在工商,金融,科研、教育,國防航空航天等領(lǐng)域都有著十分廣泛的用途。 附錄B 外文文獻(xiàn)Structure and function of the MCS52 seriesStructure and function of the MCS52 series onechip puter MCS52 is a name of a piece of onechip puter series which Intel Company produces. This pany introduced 8 topgrade onechip puters of MCS52 series in 1980 after introducing 8 onechip puters of MCS48 series in 1976. It belong to a lot of kinds this line of onechip puter the chips have,such as 8051, 8031, 8751, 80C51BH, 80C31BH,etc., their basic position, basic performance and instruction system are all the same. 8051 daily representatives 51 serial onechip puters .An onechip puter system is made up of several following parts: ( 1) One microprocessor of 8 (CPU). ( 2) At slice data memory RAM (128B/256B),it use not depositting not can reading /data that write, such as result not middle of operation, final result and data wanted to show, etc. ( 3) Procedure memory ROM/EPROM (4KB/8KB ), is used to preserve the procedure , some initial data and form in slice. But does not take ROM/EPROM within some onechip puters, such as 8031 , 8032, 80C ,etc.. ( 4) Four 8 run side by side I/O interface P0 four P3, each mouth can use as introduction , may use as exporting too. ( 5) Two timer / counter, each timer / counter may set up and count in the way, used to count to the external incident, can set up into a timing way too, and can according to count or result of timing realize the control of the puter. ( 6) Five cut off cutting off the control system of the source . ( 7) One all duplexing serial I/O mouth of UART (universal asynchronous receiver/transmitter (UART) ), is it realize onechip puter or onechip puter and serial munication of puter to use for. ( 8) Stretch oscillator and clock produce circuit, quartz crystal finely tune electric capacity need outer. Allow oscillation frequency as 12 megahertas now at most. Every the abovementioned part was joined through the inside data bus .Among them, CPU is a core of the onechip puter, it is the control of the puter and mand centre, made up of such parts as arithmetic unit and controller , etc.. The arithmetic unit can carry on 8 persons of arithmetic operation and unit ALU of logic operation while including one, the 1 storing device temporarilies of 8, storing device 2 temporarily, 839。s accumulation device ACC, register B and procedure state register PSW, etc. Person who accumulate ACC count by 2 input ends entered of checking etc. temporarily as one operation often, e from person who store 1 operation is it is it make operation to go on to count temporarily , operation result and loopback ACC with another one. In addition, ACC is often regarded as the transfer station of data transmission on 8051 inside . The same as general microprocessor, it is the busiest register. Help remembering that agreeing with A expresses in the order. The controller includes the procedure counter , the order is depositted, the order decipher, the oscillator and timing circuit, etc. The procedure counter is made up of counter of 8 for two, amounts to 16. It is a byte address counter of the procedure in fact, the content is the next IA that will carried out in PC. The content which changes it can change the direction that the procedure carries out . Shake the circuit in 8051 onechip puters, only need outer quartz crystal and frequency to finely tune the electric capacity, its fr
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