溫度計(jì)單片機(jī)課程設(shè)計(jì)
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- 溫度計(jì)單片機(jī)課程設(shè)計(jì)摘要
進(jìn)入21世紀(jì)，電子產(chǎn)品已經(jīng)開始應(yīng)用到每一個(gè)方面，當(dāng)人類向智能電子進(jìn)軍，單片機(jī)由于其物美價(jià)廉而受到大家的歡迎, 已經(jīng)普及到我們生活、工作、科研、各個(gè)領(lǐng)域。本文主要介紹了一個(gè)基于89S51單片機(jī)的測溫系統(tǒng)，詳細(xì)描述了利用數(shù)字溫度傳感器DS18B20開發(fā)測溫系統(tǒng)的過程, 該系統(tǒng)可以方便的實(shí)現(xiàn)實(shí)現(xiàn)溫度采集和顯示，并可根據(jù)需要任意設(shè)定上下限報(bào)警溫度，它使用起來相當(dāng)方便，具有精度高、量程寬、靈敏度高、體積小、功耗低等優(yōu)點(diǎn)，適合于我們?nèi)粘Ｉ詈凸�、農(nóng)業(yè)生產(chǎn)中的溫度測量，也可以當(dāng)作溫度處理模塊嵌入其它系統(tǒng)中，作為其他主系統(tǒng)的輔助擴(kuò)展。
關(guān)鍵詞： 單片機(jī) AT89S52 DS18B20 溫度傳感器 數(shù)字溫度計(jì)
Abstract
In the 21st century, electronically machines have been used in any side of our live. When the human beings are coming to electronically world, SCM becomes very popular because of its cheaper and has good quantity. And now it is used in our living, work, scientific research and so on. It will introduce one thermometer which is based on 89C51 in this essay. So it will describe the development of the thermometer which is using DS18B20 as its sensor detail. This system can be used conveniently for temperature collected and expressed, and can be made the limitation of the up and down. Due to it is convenient, accurate, wide range, high micro detector, little volume and less power and so on. So it is suitable for us to use in living and agricultural product. And also it can be used as a module adds to any other system.
Key words: SCM AT89C51 DS18B20 Temperature sensor Digital thermometer
目錄
1 概述 3
1.1 課程設(shè)計(jì)的意義 3
1.2 設(shè)計(jì)的任務(wù)和要求 3
2系統(tǒng)總體方案及硬件設(shè)計(jì) 3
2.1數(shù)字溫度計(jì)設(shè)計(jì)方案論證 3
2.1.1方案一 3
2.1.2 方案二 3
2.2系統(tǒng)總體設(shè)計(jì) 3
2.3系統(tǒng)模塊 4
2.3.1 主控制器 4
2.3.2 顯示電路 5
2.3.3溫度傳感器 6
2.3.4報(bào)警溫度調(diào)整按鍵 6
3系統(tǒng)軟件算法分析 7
3.1主程序流程圖 7
3.2讀出溫度子程序 8
3.3溫度轉(zhuǎn)換命令子程序 8
3.4 計(jì)算溫度子程序 9
3.5 顯示數(shù)據(jù)刷新子程序 9
3.6按鍵掃描處理子程序 9
4 實(shí)驗(yàn)仿真 10
5 PCB圖……………………………………………………………………………… 10
6 元件清單…………………………………………………………………………… 11
7 總結(jié)與體會(huì) 12
查考文獻(xiàn) 12
附1 實(shí)物圖………………………………………………………………… 12
附2 源程序代碼 14
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