【正文】 課題相關(guān)技術(shù) ......................................................................................................... 2 課題任務(wù)及要求 ..................................................................................................... 5 課題內(nèi)容及安排 ..................................................................................................... 5 2 系統(tǒng)方案設(shè)計(jì) .............................................................................................................. 7 方案設(shè)計(jì)原則 ......................................................................................................... 7 方案設(shè)計(jì) ................................................................................................................. 7 3 系統(tǒng)硬件設(shè)計(jì)與設(shè)備選型 ......................................................................................... 9 單片機(jī)模塊 ............................................................................................................. 9 3. AT89C52 介紹 .............................................................................................. 10 單片機(jī)最小系統(tǒng) .......................................................................................... 16 A/D 轉(zhuǎn)換模塊 ........................................................................................................ 18 A/D 轉(zhuǎn)換 ........................................................................................................ 18 ADC0808 介紹 .............................................................................................. 18 輸入模塊 ............................................................................................................... 21 串口 模塊 ............................................................................................................... 22 電源模塊 ............................................................................................................... 25 設(shè)備選型 ............................................................................................................... 26 4 系統(tǒng)軟件設(shè)計(jì)與實(shí)現(xiàn) ............................................................................................... 27 軟件編程介紹 ..................................................................................................... 27 系統(tǒng)軟件方案設(shè)計(jì) ............................................................................................... 29 ） V 上位機(jī)設(shè)計(jì)部分 ............................................................................................ 29 下位機(jī)設(shè)計(jì)部分 .......................................................................................... 31 5 系統(tǒng)集成與調(diào)試 ........................................................................................................ 34 Keil 軟件開(kāi)發(fā)平臺(tái)介紹 ........................................................................................ 34 調(diào)試分析 ............................................................................................................... 35 調(diào)試步驟 ............................................................................................................... 35 故障調(diào)試及解決方式 ........................................................................................... 35 聯(lián)調(diào)結(jié)果 ............................................................................................................... 36 結(jié)論 ................................................................................................................................ 37 社會(huì)經(jīng)濟(jì)效益分析 ........................................................................................................ 38 參考文獻(xiàn) ........................................................................................................................ 39 致 謝 ............................................................................................................................ 41 附錄Ⅰ 原理圖 .............................................................................................................. 42 附錄 Ⅱ 元器件清單 ...................................................................................................... 43 附錄 Ⅲ 程序清單 .......................................................................................................... 44 沈陽(yáng)航空航天大學(xué)北方科技學(xué)院畢業(yè)設(shè)計(jì)（論文） 1 1 緒論 目前單片機(jī)滲透到我們生活的各個(gè)領(lǐng)域，幾乎很難找到哪個(gè)領(lǐng)域沒(méi)有單片機(jī)的蹤跡。 The design is a discrete variables acquisition system with upper and lower operating mode. The PC machine controls the lower machine and display the date, and the lower machine realizes data collection. Hardware design of digital machines AT89C52 singlechip design Used for RS232 serial munication, you can relay through the puter to control the realization of the bright lights out billiards control and manual control switch can monitor. The results proved that the design method is feasible to achieve a billiards automated agency management system to overe the drawbacks of traditional management methods, the application has good prospects and the value. Keywords: single chip。結(jié)果證明，該設(shè)計(jì)方法可行，實(shí)現(xiàn)了離散量采集系統(tǒng)的自動(dòng)化，克服了傳統(tǒng)數(shù)據(jù)采集的弊端，應(yīng)用具有良好的前景和使用價(jià)值。下位機(jī)硬件設(shè)計(jì) 采用 AT89C52 單片機(jī)為控制核心，采用 ADC0808 將模擬量進(jìn)行轉(zhuǎn) 化為數(shù)字量進(jìn)行采集 ,完成了 模擬量采集系統(tǒng)的硬件設(shè)計(jì)。 本文設(shè)計(jì)的模擬量采集系統(tǒng)采用上位機(jī)、下位機(jī)通信方式運(yùn)行。在冶金、化工、醫(yī)療等應(yīng)用場(chǎng)合，需要對(duì)很多信號(hào)進(jìn)行采集，預(yù)處理，暫存和對(duì)上位機(jī)的傳輸。） I 基于單片機(jī)的模擬量數(shù)據(jù)采集系統(tǒng)設(shè)計(jì) ） II 摘 要 隨著計(jì)算機(jī)技術(shù)的飛速發(fā)展和普及，數(shù)據(jù)采集系統(tǒng)也得到了廣泛的應(yīng)用。微機(jī)在通用自動(dòng)化、信息處理、信息系統(tǒng)等方面得到廣泛的應(yīng)用。再 由 上位機(jī)對(duì)數(shù)據(jù)進(jìn)行分析處理。由上位機(jī)實(shí)現(xiàn)對(duì)下位機(jī)的控制和數(shù)據(jù)采集的顯示，下位機(jī)實(shí)現(xiàn)模擬量的采集過(guò)程。 采用 RS232 進(jìn)行串口通信 。 關(guān)鍵詞 ： 模擬量采集系統(tǒng)；單片機(jī)；通信 ） III Abstract Along with the rapid development of puter technology and popularization, data acquisition system is also widely application. Microputer is widely applied in general automation, information processing and information system etc . Signal acquisition, pretreatment, temporary and PC transmission is needed by metallurgy, chemical, medical care and other applications。 data acquisition system。導(dǎo)彈的導(dǎo)航裝置，飛機(jī)上各種儀表的控制， 計(jì)算 機(jī)的 網(wǎng)絡(luò) 通訊與數(shù)據(jù)傳輸，廣泛使用的各種智能 IC卡等等，這些都離不開(kāi)單片機(jī)。 單片機(jī)是一種集成在電路芯片，是采用超大規(guī)模集成電路技術(shù)把具有數(shù)據(jù)處理能力的中央