【正文】 這樣就造成不必要的重復(fù)性勞動(dòng)以及物力財(cái)力上的浪費(fèi)。溫濕度測(cè)量系統(tǒng)的主要不同之處在于所選用的傳感器。 對(duì)溫濕度數(shù)據(jù)進(jìn)行長(zhǎng)期記錄和控制，在很多制造過(guò)程、存儲(chǔ)、運(yùn)輸、觀測(cè)和試驗(yàn)應(yīng)用中都是非常必要的。 本系統(tǒng)是以單片機(jī)為核心，配合數(shù)字溫度傳感器、模擬濕度傳感器以及報(bào)警、顯示等相關(guān)的電路組成。s t echnical m and, on t he dif f icult ies and t o over e t echnical dif f icult ies in t he pr ocess, wor k har d, have m ade out st anding achievem ent s, m ainly r ef lect ed in t he f olowing aspect s: f ir st, car ef ul or ganization and m anagement achieved r emar kable r esult s. Technical innovat ion pr oj ect of t he year , st art ed and plet ed a ser ies of bids and plet ed t o dat e, f r om pr oduction engineer ing t o put int o pr oduct ion af ter near ly a year , has achieved ver y signif icant r esult s. A pr oj ect f ir st 56 slot s f r om dism antling t he old slot j ust 168 days, civil engineer ing, inst allat ion, missioning, guar ant ee engineer ing qualit y under t he pr emise, on t he pr oduction side t r ansf or m at ion under dif f icult condit ions, cr eated t he nat ional indust r y39。s contr ol t he scale of invest ment , st rengthen f ield m anagem ent, pay special at t ention t o pr oject progr ess, and ensur e a successf ul oper at ion, t he overall goal. He and Engineer ing Depar t ment under t he leadership of all t he st af f in t he pany39。 在溫濕度 測(cè)量 系統(tǒng)中 ， 單片機(jī)更是起到了不可替代的核心作用 ， 單片機(jī)以其功能強(qiáng)、體積小、可靠性高、造價(jià)低和開(kāi)發(fā)周期短等優(yōu)點(diǎn)， 成 為自動(dòng)化和各個(gè)測(cè)控領(lǐng)域中廣泛應(yīng)用的器件，在工業(yè)生產(chǎn)中 成 為必不可少的器件，尤其是在日常生活中發(fā)揮的作用也越來(lái)越 大。由于本設(shè)計(jì)中要同時(shí)對(duì)溫度和濕度進(jìn)行測(cè)量，可以采用兩個(gè)獨(dú)立的傳感器，即溫度傳感器和濕度傳感器，分別檢測(cè)溫度和濕度 。 4）根據(jù)系統(tǒng)方案和硬件結(jié)構(gòu)來(lái)設(shè)計(jì)軟件系統(tǒng)，使用 KEIL 開(kāi)發(fā)環(huán)境來(lái)編寫和調(diào)試匯編源代碼，完成指定的功能。 模糊控制正成為越來(lái)越熱門的控制技術(shù)。 傳感器屬于信息 技術(shù)的前沿尖端產(chǎn)品，被廣泛用于工農(nóng)業(yè)生產(chǎn)、國(guó)防、科研和生活Gay is now a pr ovincial key const r uct ion pr oj ect of alum inum Lt d pr ovince wit h an annual out put of 50,000 t ons of t echnical innovat ion pr oj ect of envir onm ental pr ot ect ion and ener gy saving of electr olyt ic alum inum pr oject manager . I n t his t echnological t r ansfor mation pr oj ect s, he has overall r esponsibilt y f or t he daytoday aff air s of t he pr oject. In or der to ensur e t hat southern pany39。 本課題主要 介紹了以單片機(jī) AT89C52 為核心的溫濕度 測(cè)量系統(tǒng) 的 硬件 設(shè)計(jì) ,現(xiàn)場(chǎng)溫、濕度 信號(hào) 采集分別使用單線數(shù)字溫度傳感器 DS18B20 和濕度 傳感器 HIH4000。 近年，隨著設(shè)施農(nóng)業(yè)的迅猛發(fā)展，尤其是溫室大棚，無(wú)土栽培，節(jié)水灌溉，工廠化養(yǎng)殖等在生產(chǎn)上得到前所未有的大發(fā)展，實(shí)現(xiàn)了農(nóng)業(yè)工廠化生產(chǎn)，企業(yè)化運(yùn)作，但美中不足是智能化程度與智能化普及率過(guò)低。不僅提高了傳統(tǒng)溫度和濕度的檢測(cè)性能，而且還可以改變初始值對(duì)室內(nèi)或者生產(chǎn)環(huán)境的溫濕度進(jìn)行控制，也可以使用于溫濕度要求較高的場(chǎng)所，例如實(shí)驗(yàn)室，生產(chǎn)車間，倉(cāng)庫(kù)等使用都非常方便。環(huán)境的溫濕度一旦超過(guò)限定值，勢(shì)必會(huì)對(duì)所處環(huán)境的人或設(shè)備造成影響，更甚者會(huì)給個(gè)人和社會(huì)造成巨大的損失和社會(huì)影響。而科學(xué)技術(shù)的發(fā)展，特別是新材料、新結(jié)構(gòu)的 傳感器研制成功，以及微型計(jì)算機(jī)的廣泛開(kāi)發(fā)，在測(cè)量系統(tǒng)的準(zhǔn)確性、快速性、可靠性和抗干擾性等方面發(fā)揮了明顯作用。各個(gè)應(yīng)用場(chǎng)合的溫度和濕度都在一定范圍內(nèi)波動(dòng)，由于它們的熱容量很大，溫度和濕度的動(dòng)態(tài)響應(yīng)慣性大，是一個(gè)非線性、大滯后的復(fù)雜系統(tǒng)，所以既難測(cè)，難控，又難以獲得精確的數(shù)學(xué)模型，采用傳統(tǒng) PID 控制方法難以達(dá)到人們提出的控制要求，隨著智能控制理論的發(fā)展，智能控制與常規(guī)的 PID 控制相組合，形成所謂的智能 PID 控制，這種新型的控制器已得到廣泛的應(yīng)用，它 具有不依賴精確數(shù)學(xué)模型的特點(diǎn)，對(duì)系統(tǒng)的參數(shù)變化具有更好的魯棒性 。 Gay is now a pr ovincial key const r uct ion pr oj ect of alum inum Lt d pr ovince wit h an annual out put of 50,000 t ons of t echnical innovat ion pr oj ect of envir onm ental pr ot ect ion and ener gy saving of electr olyt ic alum inum pr oject manager . I n t his t echnological t r ansfor mation pr oj ect s, he has overall r esponsibilt y f or t he daytoday aff air s of t he pr oject. In or der to ensur e t hat southern pany39。 [5] 溫濕度傳感器正朝著集成化、智能化、系統(tǒng)化的方向發(fā)展，與此同時(shí)，溫濕度傳感器正從分立元件向集成化、智能化、系統(tǒng)化的方向迅速發(fā)展，為開(kāi)發(fā)新一代溫濕度測(cè)控系統(tǒng)創(chuàng)造了有利條件。 在工業(yè)生產(chǎn)如：用于熱處理的加熱爐、用于融化金屬的坩鍋電阻爐等，在日常生活中如：熱水器、電熱毯、溫室溫濕度控制等等，都用到了單片機(jī)的控制原理。s t echnical m and, on t he dif ficult ies and t o over e t echnical dif f icult ies in t he pr ocess, wor k har d, have made out st anding achievem ent s, m ainly r eflect ed in t he f olowing aspect s: f ir st , car eful or ganization and m anagement achieved r emarkable r esult s. Technical innovat ion pr oject of t he year, st ar t ed and plet ed a ser ies of bids and plet ed t o dat e, f r om pr oduct ion engineering t o put int o pr oduction af t er near ly a year, has achieved ver y signif icant r esult s. A pr oj ect f ir st 56 slot s f r om dismant ling t he old slot j ust 168 days, c ivil engineer ing, inst allat ion, m issioning, guar ant ee engineer ing qualit y under t he pr em ise, on t he pr oduct ion side t ransfor mat ion under dif f icult condit ions, cr eat ed t he nat ional indust r y39。s f ast est speeds. I I 32 lar ge pr ebaked elect rolyt ic cell on Novem ber 7 has been inst alled, m ar ks has an annual pr oduct ion capacit y of 50, 00 t ons of elect r olyt ic alum inum pr oduction capacit y of alum inum . Entir e pr oject alm ost 8 m ont hs ear lier t han planned, achieved t he goal of pr oduction t r ansf orm ation benef it s t hat year, cr eat ed f avor able condit ions f or alum inum t hr ough Sout h. Sec ond, ef f ect ively cont r ol t he invest ment. Pr oject is subj ect o a scientif ic appr oach t o bidding, bidding t o m ake savings of 20 m ilon Yuan, in t he im plem ent at ion pr ocess of t he pr oj ect, ever y dom est ic pr ices of st eel, cem ent and ot her building m at erials, t he old buildings on t he base encount er ed gr eat dif f icult ies in dealing wit h signif icant incr ease in t he volum e of civil engineer ing, but t hr ough r ationalizat ion and opt im ization, pr oj ect cont r ol in f ixed invest m ent of 350 m ilon Yuan. Thir d, envir onment al ener gysaving ef fect of t he pr oj ect. Pr oj ect investm ent of nearly 30 m il ion Yuan, using lar ge pr ebake t echnol gy and alum inum oxide dense phase and hyper dense phase conveying t echnol gy, fluor ide and ot her harm f ul gases pur ifcat ion ef ficiency of up t o 98%. Com par ed wit h Soder ber g cel bef or e t he m odifcat ion, power consum pt ion can be r educed by 1500 t ons of elect r olyt ic alum inum , and pr oj ect envir onm ental pr ot ect ion and ener gy saving ef f ect is obvious. Four ar e in a r elat ively shor t per iod of t im e t o t he nor m al pr oduction. Af t er f our m ont hs of ef f or ts, a pr oj ect has put int o oper at ion all t he 54 240KA lar ge cell int o r egular pr oduct ion, st able cur r ent channel condit ions