【正文】 XXXXXXXXXXXX 本科生畢業(yè)論文 溫差警報器設計 院系名稱 信息科學與工程系 姓 名 XXX 學 號 202001030162 專 業(yè) 電子信息工程 指導教師 XX 講師 2020年 05月 8日 I 摘 要 近年來， 溫差這個詞在人們的日常生活中出現(xiàn)的越來越頻繁，可見其重要性也是越來越高。醫(yī)學專家強調(diào)室內(nèi)外溫差不可高于 7℃?？墒牵藗兤綍r無法依靠自己的感覺而準確的判別溫差大小，因此，一個可以準確方便的幫助人們判別溫差大小的產(chǎn)品的研究已經(jīng)成為了一個重要的課題。對此， 本 論文設計了一種能夠及時的反饋出室內(nèi)外溫度情況并發(fā)出溫差過大警報信號的裝置。該裝置采用 STC89C52單片機作為控制器，兩個 DS18b20溫度傳感器作為 溫度數(shù)據(jù)采集系統(tǒng)， LCD1602作為顯示系統(tǒng)， LED 燈作為警報提示系統(tǒng)，能夠?qū)崿F(xiàn)數(shù)據(jù)采集，數(shù)據(jù)處理，數(shù)值顯示，報警等功能。該裝置具有簡單、方便、精確、實用 、成本較低等特點。本論文從組成框圖、硬件設計以及程序流程及代碼等幾方面對該裝置進行了介紹。 關鍵詞： 溫差；單片機；傳感器 II Abstract In recent years, the temperature difference between the word appearing in people39。s daily lives more and more frequently, and its importance is also increasing. Medical experts emphasize indoor and outdoor temperature does not exceed 7 ℃ . However, people usually can not rely on their feelings and accurately determine the size of the temperature difference, therefore, an accurate and convenient to help people determine the temperature difference between the size of the product39。s research has bee an important issue. In this regard, this paper designs a timely feedback on the situation and the temperature difference between the indoor and outdoor temperature is too large device emits an alarm signal. The device uses STC89C52 microcontroller as controller, two DS18b20 temperature sensor for temperature data acquisition system, LCD1602 as a display system, LED lights as an alarm reminder system, to achieve data acquisition, data processing, numerical display and alarm functions. The device has a simple, convenient, accurate, practical, low cost and so on. In this paper, from the block diagram, hardware design and program code and other aspects of the process and the devices were introduced. Keywords: temperature difference 。 SingleChip Microputer 。 sensor III 目 錄 摘 要 ..........................................................................................................................I 1 引 言 ..................................................................................................................... 1 研究的背景和意義 .................................................................................... 1 研究本課題所涉及的文獻綜述 ................................................................ 1 研究本課題的主要內(nèi)容和方法 ................................................................ 1 研究的主要內(nèi)容 ............................................................................. 1 研 究方法 ........................................................................................ 2 2 方案總體設計 ......................................................................................................... 3 設計方案的選擇 ......................................................................................... 3 控制器模塊 ..................................................................................... 3 電源模塊 ......................................................................................... 3 溫度采集模塊 ................................................................................. 3 顯示模塊 ........................................................................................ 4 警報模塊 ........................................................................................ 4 3．硬件實現(xiàn)及單元電路設計 .................................................................................. 5 微控制器模塊的設計 ................................................................................. 5 電源電路的設計 ......................................................................................... 5 DS18b20溫度傳感器溫度采集模塊的設計 .............................................. 6 LCD1602顯示模塊電路的設計 .................................................................. 7 警報模塊電路的設計 ................................................................................ 7 復位電路的設計 ......................................................................................... 8 電路總圖 ............................