基于ad590糧庫溫度檢測系統(tǒng)研究-全文預(yù)覽
【正文】 軟件設(shè)置空閑和省電功能 靈活的ISP字節(jié)和分頁編程 雙數(shù)據(jù)寄存器指針 MC14433是美國Motorola公司推出的單片3 1/2位A/D轉(zhuǎn)換器，其中集成了雙積分式A/D轉(zhuǎn)換器所有的CMOS模擬電路和數(shù)字電路。設(shè)R= 358，I= 2(17910／R )l n J l／J2 = K／ql n I / I s = KT／q它的主要特性如下：( 1 ) 線性度好，滿刻度范圍為177。模擬集成溫度傳感器是在20世紀(jì)80年代問世的，它是將溫度傳感器集成在一個(gè)芯片上，可完成溫度測量及模擬信號輸出功能的專用IC。這種設(shè)計(jì)方案實(shí)現(xiàn)了溫度實(shí)時(shí)測量、顯示和控制。這種溫度測控系統(tǒng)可應(yīng)用于農(nóng)業(yè)產(chǎn)品的存儲，實(shí)現(xiàn)對溫度的實(shí)時(shí)監(jiān)控，是一種比較智能、經(jīng)濟(jì)的方案，以提高農(nóng)副產(chǎn)品的存儲質(zhì)量，以便帶來更好的經(jīng)濟(jì)效益和社會效益。在冶金、鋼鐵、石化、水泥、玻璃、醫(yī)藥等行業(yè)，可以說幾乎80%的工業(yè)部門都不得不考慮著溫度的因素。Single bus technology。系統(tǒng)穩(wěn)定可靠、可維護(hù)性好。隨著糧庫溫度檢測技術(shù)的普及，糧庫數(shù)量的不斷增多，其溫度控制便成為一個(gè)十分重要的課題。因此，要改變這種局面，只靠增加耕地面積是不可能實(shí)現(xiàn)的，因此我們要另辟蹊徑，提高糧食存儲效率，減少糧食損失及浪費(fèi)，糧庫溫度檢測技術(shù)就是其中一個(gè)好的方法。這種設(shè)計(jì)方案能對多點(diǎn)的溫度進(jìn)行實(shí)時(shí)巡檢，各檢測單元能獨(dú)立完成各自功能，同時(shí)能夠?qū)囟冗M(jìn)行定時(shí)采集，測量結(jié)果不僅能在本地顯示，而且可以利用單片機(jī)串行口，通過RS485總線及通信協(xié)議將采集的數(shù)據(jù)傳送到計(jì)算機(jī)，進(jìn)行進(jìn)一步的存檔、處理。AD590.Study on grain depot temperature detection systemAbstract: In our country, the per capita arable land area of less. Therefore, in order to change this situation, only by increasing the area of arable land is impossible, so we should open a new path, improve grain storage efficiency, reduce food losses and waste, grain depot temperature detection technology is a good method. With the popularization of granary temperature detection technology, a growing number of grain, the temperature control is being a very important subject.This paper introduces a kind of granary temperature detection system based on single chip microputer, the specific scheme is using the temperature sensor AD590 will change in grain depot temperature, into the change of voltage input analog to digital converter, its value by the single chip processing and control, digital display, display the actual temperature in the grain depot. Once the temperature exceeded the preset range, SCM will activate alarm system, and the control of temperature. This project can make realtime measurement of the multiple point temperature, the inspection unit can independently function, also can be collected on the temperature, measurement results can not only locally, but also can use the microcontroller serial port, through the RS485 bus munication protocol and the data collected will be transmitted to the puter, processing, archiving further. The system is stable and reliable, good maintainability.Key words:AT89S51。自18世紀(jì)工業(yè)革命以來，工業(yè)發(fā)展與是否能掌握溫度有著密切的聯(lián)系。在這樣的形式下，開發(fā)一種實(shí)時(shí)性高、精度高，能夠綜合處理多點(diǎn)溫度信息的測控系統(tǒng)就很有必要[2
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