【正文】
軟件)L7一等。目前干燥學(xué)術(shù)研發(fā)活動(dòng)地位低 下存在咀下問題 1)很多干燥的實(shí)際過程過于復(fù)雜有時(shí)甚至無法總結(jié)歸納其采用的干燥原理 2)不少干燥的理論研究與工業(yè)應(yīng)用脫節(jié)陷人了“理論研究一發(fā)表論文一再研 艚發(fā)表論文”的怪圈昂終失去應(yīng)用價(jià)值 3)一砦新的干燥理念在小試或巾試后由于技術(shù)風(fēng)險(xiǎn)性高和擴(kuò)大生產(chǎn)的條件限 制只有少部分成為有活力并可在商業(yè)上應(yīng)用的創(chuàng)新技術(shù)4)多數(shù)干燥設(shè)備的使用 壽命過長在優(yōu)化設(shè)計(jì)方面無創(chuàng)新阻礙了創(chuàng)新的快速發(fā)展。 現(xiàn)狀 幾乎所有工業(yè)領(lǐng)域都有熱力干燥這一環(huán)節(jié)涉及的材料超過6萬種。例如%否則在其制品中將有氣泡生成 抗菌素含水量太高會(huì)影響其使用期限不經(jīng)干燥的染料在包裝桶中貯藏時(shí)濕物料 會(huì)沉降分層使各層中染料含量不同這會(huì)給使用廠家?guī)碓S多不必要的麻煩。1 ...................................... 錯(cuò)誤未定義書簽。1 ........................................ 錯(cuò)誤未定義書簽。s hardware part, including:Temperature examination electric circuit, temperaturecontrol circuit, PC machine and monolithic integrated circuit serial port munication channel and some interface circuit. The monolithic integrated circuit through carries on corresponding processing to the signal, thus realizes the temperature control software design is especially important, uses the modular structure in here, the main module includes: Nixietube display sequence, keyboard scanning and pressed key disposal procedure, temperature signal processing procedure, black white control procedure, excess temperature warning procedureheating missioning,realized the intelligent control syatem,make emulsify drying process to achieve better effect. Keywords:SCMControlTemperature,Drying
本頁完 第 2 頁 共 53 頁 MICROCONTROLLERBASED EMULSION DRYING PROCESS CONTROL SYSTEM DESIGN ABSTRACT Drying of the emulsion is to make the material easy to process, transport, and use of design is based on AT89C51 microputer as the core of the temperature control system. The temperature signal by the temperature chip DS18B20 gathering, and transmits by digital signal39。軟件設(shè)計(jì)部分尤為重要在這里采用模塊 化結(jié)構(gòu)主要模塊有數(shù)碼管顯示程序、鍵盤掃描及按鍵處理程序、溫度信號(hào)處理 程序、超溫報(bào)警程序、加熱程序。溫度信號(hào)由溫度芯片DS18B20采集并以 數(shù)字信號(hào)的方式傳送給單片機(jī),該控制系統(tǒng)的硬件部分包括溫度檢測電路、溫 度控制電路、PC機(jī)與單片機(jī)串口通訊電路和一些接口電路 ?;趩纹瑱C(jī)的乳化物干燥過程控制系統(tǒng)設(shè)計(jì) 摘 要 對乳化物進(jìn)行干燥是為了使物料便于加工、運(yùn)輸、駐藏和使用。本設(shè)計(jì)是以 AT89S51單片機(jī)為核心的溫度控制系統(tǒng)。單片機(jī)通過對信號(hào)進(jìn) 行相應(yīng)處理從而實(shí)現(xiàn)溫度控制的目的。經(jīng)過調(diào)試實(shí)現(xiàn)了系統(tǒng)的智能化控制使乳化物 干燥過程達(dá)到較好的效果。s way for the monolithic integrated circuit. In the article introduced this control system39。1 、背景、現(xiàn)狀及意義 ...... 錯(cuò)誤未定義書簽。1 .............................................. 錯(cuò)誤未定義書簽。1 ............................................................ 2 ...................................................... 3 .......................................... 3