【正文】 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 。 溫度采集接口設(shè)計(jì) XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。 DQ 為數(shù)據(jù)輸入 /輸出引腳。XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX基于 AT89C51單片機(jī)單片機(jī)的智能開關(guān)設(shè)計(jì) 10 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。 圖 35 溫度采集電路 繼電器通常應(yīng)用于自動(dòng)化的控制電路中，它實(shí)際上是用小電流去控制大電流運(yùn)作的一種 “自動(dòng)開關(guān) ”，本設(shè)計(jì)中，繼電器開關(guān)電路外接 +12V 電源，另一端接接空調(diào)控制開關(guān)，繼電器主要的作用就是驅(qū)動(dòng)空調(diào)制冷。 圖 31 AT89C51 外形圖 時(shí)鐘電路設(shè)計(jì) 基于 AT89C51單片機(jī)單片機(jī)的智能開關(guān)設(shè)計(jì) 6 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。 3 硬件電路設(shè)計(jì) AT89C51 報(bào)警電路 復(fù)位電路 時(shí)鐘電路 溫度采集電路 鍵盤電路 顯示電路 榆林學(xué)院本科畢業(yè)設(shè)計(jì) (論文 ) 5 單片機(jī)最小系統(tǒng)設(shè)計(jì) AT89C51 單片機(jī)簡(jiǎn)介 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 。 總體結(jié)構(gòu)設(shè)計(jì) 本論文的整個(gè)設(shè)計(jì)的系統(tǒng)可分為溫度采集電路、電源電路、顯示電路、復(fù)位電路、時(shí)鐘電路、報(bào)警電路、中央處理電路這七個(gè)部分。根 據(jù)本設(shè)計(jì)的要求繼電器要在設(shè)定的時(shí)間接通或者分?jǐn)嚯娐?。輸入輸出端口選擇上最好是選擇定時(shí)器的 I/O 輸出， PWM 輸出或者其他容易生成不同頻率的輸出的端口，程序略復(fù)雜。綜上述，最終選用方案三，即選 用DS18B20。 溫度采集方式的選擇 方案一： XXXXXXXXXXXXXXXXXX。 空調(diào)溫度監(jiān)控功能：采用模擬系統(tǒng)，設(shè)定溫度為 25℃ ，蜂鳴器響同時(shí)小燈亮表示自動(dòng)降溫。有好多智能化工程中已經(jīng)用到了智能化產(chǎn)品的核心元件，包括 GIS 電子式互感器， GIS 間隔智能監(jiān)測(cè)裝置等，并且向用戶提供了可以滿足 GIS 設(shè)備要求的整體化、系統(tǒng)化的解決方案。隨著單片機(jī)應(yīng)用不斷深入發(fā)展，智能型開關(guān)的發(fā)展也是很迅猛的。而且，上述的這些廠商同時(shí)也具有一次設(shè)備生產(chǎn)的能力，而且還有二次設(shè)備開發(fā)的能力。盡管現(xiàn)在智能開關(guān)沒(méi)有普遍使用。在開關(guān)使用上，人們需要的是對(duì)于 生活和工作環(huán)境以及設(shè)備的隨心所欲的控制方式。單片機(jī)的應(yīng)用已經(jīng)發(fā)展到了空調(diào)方面，完成了軟件和硬件的相結(jié)合?？赡苋藗儗?duì)智能開關(guān)還不是很熟悉，甚至感到有些陌生。智能開關(guān)是如時(shí)間程序自動(dòng)控制、按時(shí)自動(dòng)打鈴、自動(dòng)啟閉電燈、定時(shí)廣播等一些定時(shí)設(shè)備的自動(dòng)啟動(dòng)。 Intelligent switch。 本設(shè)計(jì)以 AT89C51 單片機(jī)為核心，并結(jié)合外圍元件如：蜂鳴器、繼電器、DS18B數(shù)碼管等 設(shè)計(jì)出控制作息時(shí)間和空調(diào)溫度監(jiān)控及報(bào)警功能的智能開關(guān)。 本人畢業(yè)設(shè)計(jì)（論文）與資料若有不實(shí)，愿意承擔(dān)一切相關(guān)的法律責(zé)任。 分類號(hào) TP319 單位代碼 11395 密 級(jí) 學(xué) 號(hào) 0805270106 學(xué)生畢業(yè)設(shè)計(jì)（論文） 題 目 基于 AT89C51單片機(jī)的 智能開關(guān)設(shè)計(jì) 作 者 張 三 院 (系 ) 能源工程學(xué)院 專 業(yè) 測(cè)控技術(shù)與儀器 指導(dǎo)教師 趙鵬 答辯日期 2020年 5月 20日 榆 林 學(xué) 院 畢業(yè)設(shè)計(jì)（論文） 誠(chéng)信責(zé)任書 本人鄭重聲明：所呈交的畢業(yè)設(shè)計(jì)（論文），是本人在導(dǎo)師的指導(dǎo)下獨(dú)立進(jìn)行研究所取得的成果。對(duì)本文的研究做出重要貢獻(xiàn)的個(gè)人和集體，均已在文中以明確方式標(biāo)明。本設(shè)計(jì)就基于 AT89C51 單片機(jī)的智能開關(guān)的工作原理和設(shè)計(jì)方法進(jìn)行了系統(tǒng)的研究。 關(guān)鍵詞 ：?jiǎn)纹瑱C(jī)；智能開關(guān)； DS18B20 基于 AT89C51單片機(jī)單片機(jī)的智能開關(guān)設(shè)計(jì) II Design of Intelligent Switch Based on the AT89C51 MCU ABSTRACT People can more easily control devices with the occurrence of the emergence of intelligent switches which has brought great convenience to people’s lives. The microcontroller is constantly been used, and it is more extensive, the reason lies in its low power consumption, easy to use, small size, some features. This design aims to do a systematic study of the emergence of intelligent switch which based on the AT89C51 MCU of design theory and method. the AT89C51 MCU play the core role in this design, and bined with peripheral ponents the buzzer, relays, the DS18B20, digital tube, etc. by which design the switch of control of the work and rest time and the airconditioning temperature monitoring and alarm function of the intelligent. the design using Protel software design temperature data acquisition circuit alarm circuit, display circuit, the use of the Keil software programming, Proteus simulation to achieve its function. this design is flexible, simple to modify, and more secure in the process of using energysaving microcontroller to monitor realtime temperature. To a certain extent