電子機(jī)電論文編號(hào):JD021    字?jǐn)?shù):15844,頁數(shù):46

目錄
目錄 .................................................................1
第一章   緒論.........................................................1
1. 1   選題背景 ......................................................1
1．2 設(shè)計(jì)過程及工藝要求...............................................2
第二章    方案的比較和論證............................................2
2. 1溫度傳感器的選擇 .................................................3
2. 2 濕度傳感器的選擇.................................................3
2. 3 信號(hào)采集通道的選擇 ..............................................4
第三章    系統(tǒng)總體設(shè)計(jì)................................................5
3．1  信號(hào)采集........................................................6
3．1．1  溫度傳感器...................................................6
3. 1. 2 濕度傳感器....................................................9
3．1．3 多路開關(guān) ....................................................12
3．2  信號(hào)分析與處理 ................................................13
3．2．1  A/D轉(zhuǎn)換 ....................................................13
3. 2. 2單片機(jī)8031 ...................................................16
3. 2. 2. 1 8031的片內(nèi)結(jié)構(gòu) ...........................................17
3. 2. 2. 2 8031的引腳圖..............................................18
3. 2. 2. 3 8031程序存儲(chǔ)器............................................19
3. 2. 2. 4 8031數(shù)據(jù)存儲(chǔ)器............................................20
3. 2. 2. 5 特殊功能寄存器SFR ........................................21
3. 2. 2. 6 工作方式 .................................................22
3. 2. 3存儲(chǔ)器的設(shè)計(jì) .................................................23
3. 2. 4數(shù)據(jù)存儲(chǔ)器的掉電保護(hù)..........................................24
3. 2. 5系統(tǒng)時(shí)鐘的設(shè)計(jì) ...............................................25
3. 3 顯示與報(bào)警的設(shè)計(jì)................................................25
3. 3. 1 顯示電路 ....................................................25
3. 3. 2 報(bào)警電路 ....................................................26
第四章   軟件設(shè)計(jì)....................................................27
參考文獻(xiàn) ............................................................33
附錄A 程序清單...................................................... 34