【正文】 成都電子機械高等專科學(xué)校 通信工程系畢業(yè)設(shè)計論文煤氣檢測系統(tǒng)的畢業(yè)設(shè)計目錄第1章 緒論 .........................................................................................................................................................1 課題研究的背景 .......................................................................................................................................1 課題研究的目的 .......................................................................................................................................1 國內(nèi)外發(fā)展現(xiàn)狀 .......................................................................................................................................1第2章 煤氣檢測系統(tǒng)設(shè)計的基本內(nèi)容 .............................................................................................................3 煤氣檢測系統(tǒng)的主要任務(wù) .......................................................................................................................3 煤氣檢測系統(tǒng)的設(shè)計要求 .......................................................................................................................3第3章 煤氣檢測系統(tǒng)設(shè)計的硬件設(shè)計 .............................................................................................................4 基于單片機實現(xiàn) .......................................................................................................................................4 系統(tǒng)硬件電路的總體設(shè)計 .......................................................................................................................5 氣體傳感器電路設(shè)計 .......................................................................................................................5 放大電路的設(shè)計 ...............................................................................................................................9 A/D轉(zhuǎn)換電路設(shè)計 ..........................................................................................................................10 單片機的最小系統(tǒng)設(shè)計 .................................................................................................................14 聲光報警電路設(shè)計 .........................................................................................................................16 數(shù)碼管顯示電路設(shè)計 .....................................................................................................................17第4章 煤氣檢測系統(tǒng)的軟件設(shè)計 ...................................................................................................................19 主程序設(shè)計流程圖 .................................................................................................................................19 A/D轉(zhuǎn)換控制程序設(shè)計流程圖 ..............................................................................................................20 顯示子程序的設(shè)計流程圖 .....................................................................................................................21 報警子程序的設(shè)計流程圖 .....................................................................................................................22第5章 系統(tǒng)的功能仿真 ....................................................................................................................................23 仿真軟件介紹 .........................................................................................................................................23 煤氣檢測系統(tǒng)的模塊仿真 .....................................................................................................................23 A/D轉(zhuǎn)換模塊測試 ..........................................................................................................................23 顯示模塊測試 .................................................................................................................................24 聲光報警電路模塊測試 .................................................................................................................25成都電子機械高等專科學(xué)校 通信工程系畢業(yè)設(shè)計論文 系統(tǒng)誤差分析 .........................................................................................................................................26結(jié)語 ...................................................................................................................................................................27致謝 ...................................................................................................................................................................28參考文獻 ...........................................................................................................................................................29附錄1 煤氣檢測系統(tǒng)的仿真電路圖 ................................................................................................................30附錄2 煤氣檢測系統(tǒng)的電路原理圖 ................................................................................................................31附錄3 濃度與電壓值的對應(yīng)關(guān)系 ....................................................................................................................32附錄4 煤氣檢測系統(tǒng)的源程序 ........................................................................................................................33成都電子機械高等?？茖W(xué)校