1928_基于單片機的溫度檢測控制

1928_基于單片機的溫度檢測控制,基于,單片機,溫度,檢測,控制,節(jié)制 黃河科技學院畢業(yè)設計說明書 第 I 頁基于單片機的溫度檢測控制摘要隨著溫度檢測系統(tǒng)的廣泛運用，不同行業(yè)和領(lǐng)域?qū)囟葯z測有著不同要求和標準。該設計主要用于普通室內(nèi)溫度測量。采用 DS18B20 集成芯片作為溫度傳感器。文中分析了溫度測量的工作原理及過程，提出了溫度檢測系統(tǒng)設計的整體方案，對各個子模塊設計進行了方案的論證與比較。硬件設計采用 protel 99se 軟件，完成了單片機最小系統(tǒng)，LCD 顯示電路，傳感器的原理圖和 PCB 圖。軟件設計采用 Keil uVision2 ，完成了程序模塊各個模塊的設計編程，實現(xiàn)了對溫度信號處理過程的編程和調(diào)試。溫度測量范圍-40~+125℃，分辨率±0.5℃。能達到日常生活溫度測量要求。關(guān)鍵字：AT89C51，DS18B20，LCD，數(shù)據(jù)采集，數(shù)據(jù)處理 黃河科技學院畢業(yè)設計說明書 第 II 頁Based on SCM temperature detection and controlAuthor：Ma ChuTutor：NiuYueLanAbstractAlong with the humiture examination system's widespread utilization, the different profession and the domain have the various requirement and the standard to the humiture examination. This design mainly uses in the ordinary indoor humiture survey. Uses the DS18B20 integration chip to take the humiture sensor. In the article has analyzed the humiture survey principle of work and the process, proposed the humiture examination system design's overall plan, has carried on the plan proof to each submodule design and compares. The hardware design uses protel the 99se software, has completed the monolithic integrated circuit smallest system, the LCD display circuit, sensor's schematic diagram and the PCB chart. The software design uses Keil uVision2, has completed the program module each module design programming, has realized to the humiture signal processing process programming and the debugging. Temperature survey scope - 40~+125℃, resolution ±0.5℃. Can meet the daily life humiture survey requirements.key words: AT89C51,DS18B20,LCD,Data acquisition,Data processing 黃河科技學院畢業(yè)設計說明書 第 III 頁目錄第 1 章 緒論 ..................................................................................................................................11.1 課題意義及發(fā)展前景 ................................................................................................................11.2 設計內(nèi)容及性能指標 ...............................................................................................................2第 2 章 系統(tǒng)器件選擇 ...........................................................................................................42.1 主控芯片介紹 .............................................................................................................................42.2 溫度傳感器的選擇 ....................................................................................................................52.2.1 DS18B20 性能特點 .........................................................................................................52.2.2 DS18B20 內(nèi)部結(jié)構(gòu)和測溫原理 ...................................................................................62.2.3 DS18B20 使用中的注意事項和控制方法 ..................................................................82.3 顯示元件的選擇 ........................................................................................................................9第 3 章 硬件設計 .....................................................................................................................123.1 復位電路 ...................................................................................................................................123.2 時鐘電路 ...................................................................................................................................123.3 顯示電路 ...................................................................................................................................133.4 測溫電路 ...................................................................................................................................143.5 控制電路 ...................................................................................................................................143.6 報警電路 ...................................................................................................................................153.7 整機電路及工作原理 .............................................................................................................15第 4 章 軟件設計 .....................................................................................................................174.1 主程序模塊 ...............................................................................................................................174.2 溫度相關(guān)模塊 ..........................................................................................................................184.3 時間相關(guān)模塊 ..........................................................................................................................264.4 中斷相關(guān)程序 ...........................................................................................................................274.5 其他相關(guān)程序 ..........................................................................................................................28 黃河科技學院畢業(yè)設計說明書 第 IV 頁第 5 章 PROTEUS 進行仿真 .........................................................................................315.1 PROTEUS 簡介 .....................................................................................................................315.2 PROTEUS 仿真圖 .................................................................................................................31總結(jié) .....................................................................................................................................................34致謝 .....................................................................................................................................................35參考文獻 ................................................................................................................................................36