【正文】 大學畢業(yè)設(shè)計（論文）報告用紙 第1 頁 共 33 頁 畢業(yè)設(shè)計(論文)說明書題 目： 自動干手器的設(shè)計與實現(xiàn) 院 （系）： 信息與通信學院 專 業(yè)： 電子信息工程 摘 要 近年來，隨著人們生活水平的日益提高，人們對衛(wèi)生問題的關(guān)注越來越高。人們常用洗手來控制細菌的傳播，但很多人往往忽略了洗完手后使手變干的步驟，從而導致洗手效果的減弱，因此我們有需要注意洗手后干手的環(huán)節(jié)。而自動干手器不僅能夠干手，還具有衛(wèi)生、人性化的特點，因而得到大眾的喜愛。自動干手器是一種高檔的衛(wèi)生潔具，其可以取代毛巾、紙巾，對手部進行干燥。具有節(jié)能、環(huán)保、人性化的優(yōu)點，被廣泛應(yīng)用于賓館酒店、機場車站、體育場館等公共場所的洗手間?，F(xiàn)在市場上購買的自動干手器的控制電路大多使用555時基電路和數(shù)字集成電路。由于采用電阻，電容等分立元件較多。電磁干擾較強。工作不穩(wěn)定，人性化方面不夠完善。本設(shè)計采用52單片機進行電路控制，克服了以上缺點。用52單片機和紅外感應(yīng)設(shè)計的干手器具有能夠自動感應(yīng)人手的伸進和離開，通過硬件可以加減每次工作時間，可以用數(shù)碼管顯示干手器設(shè)定的時間并在干手機工作時顯示此次工作倒計時時間，還能使用選擇開關(guān)選擇輸出冷風或熱風，分別滿足不同溫度天氣的使用。該設(shè)計在方案上有設(shè)計的可行性，也具有一定的市場前景。對自己而言，該課題的研究可以把大學所學的專業(yè)知識應(yīng)用到實際的電路設(shè)計中去，使自己的專業(yè)知識得到進一步的鞏固。關(guān)鍵詞：單片機；紅外感應(yīng)；干手器AbstractIn recent years, with the increasing living standard, people concerned about the increasing health problems. Wash hands often used to control the spread of germs, but many people tend to ignore the hand after hand washing drying steps, resulting in the weakening effect of hand washing, so we need to pay attention to dry hands after washing hands part. The automatic hand dryer to dry hands only, but also with health, human characteristics, and therefore loved by the public. Automatic hand dryer is a highend sanitary ware, which can replace the towels, paper towels, opponents of the drying. Energy saving, environmental protection, human, it is widely used in hotels, airport stations, sports stadiums and other public places toilets. Now on the market to buy the automatic hand dryers are mostly used to control circuit 555 circuit and digital integrated circuits. As a result of resistors, capacitors and other discrete ponents more. Strong electromagnetic interference. Job insecurity, human aspects is inadequate. The design uses a microcontroller to control circuit 52, to overe the above disadvantages. 52 microcontroller and infrared sensors with the design of dry hands with the ability to automatically sense and manpower into his leave, working through the hardware can add and subtract each time) digital display can be used to set the time for dry hands and work in the dryer The work is displayed when the countdown time, select the output selector switch can use cold or hot, the weather at different temperatures were used to meet.This design in the scheme design of feasibility, also has certain market prospect. For myself, this topic research can put a college major knowledge applied to practical circuit design, make myself of the professional knowledge to further consolidate.Key words: MCU。 Infrared sensing。 Airing implement目 錄引言……………………………………………………………………………11 緒論………………………………………………………………………1 課題背景……………………………………………………………………1 課題研究的目的和意義………………………………………………………1 課題研究內(nèi)容…………………………………………………………………12 方案論證………………………………………………………………2 方案一……………………………………………………………………2 方案二……………………………………………………………………2 系統(tǒng)方案對比論證………………………………………………………23 硬件電路……………………………………………………………………2 硬件電路設(shè)計原理 …………………………………………………………2…………………………………………………………3 硬件電路的芯片介紹…………………………………………………………3 單片機AT89S52介紹………………………………………………………6 紅外對管…………………………………………………………………6 數(shù)碼管……………………………………………………………………7 繼電器 ……………………………………………………………………7………………………………………………………7 晶振電路………………………………………………………………7 復位電路……………………………………………………………10 數(shù)碼管顯示電路………………………………………………………12 繼電器電路……………………………………………………………11 紅外感應(yīng)電路…………………………………………………………13 電吹風電路……………………………………………………………134 軟件設(shè)計…………………………………………………………………15 軟件設(shè)計介紹………………………………………………………………15 主程序的設(shè)計………………………………………………………………16 定時中斷程序的設(shè)計………………………………………………………18 實現(xiàn)功能…………………………………………………………………6 中斷流程圖…………………………………………………………………6 關(guān)鍵技術(shù)…………………………………………………………………65 系統(tǒng)制作及調(diào)試…………………………………………………………20 系統(tǒng)制作……………………………………………………………………20 電路板的制作………………………………………………………………20 硬件調(diào)試……………………………………………………………………20 軟件調(diào)試……………………………………………………………………20 整機調(diào)試……………………………………………………………………206 結(jié)論………………………………………………………………………23謝辭……………………………………………………………………………24參考文獻………………………………………………………………………25附錄 ………………………………………………………………………26附錄一 ………………………………………………………………………26附錄二 ………………………………………………………………………26附錄三 ………………………………………………………………………27附錄四 ………………………………………………………………………27附錄五 ………………………………………………………………………27引言自動干手器是一種高檔衛(wèi)生潔具，廣泛應(yīng)用于學校、機場