-畢業(yè)設(shè)計--單片機自動打鈴系統(tǒng)論文-畢業(yè)設(shè)計-文庫吧在線文庫
【正文】 用性強。摘要 在現(xiàn)如今快節(jié)奏的生活中，人們對于時間的要求越來越苛刻，很多時候都需要對時間進行規(guī)劃，然后到時間點就要有時間提 醒，這就必須用到時鐘提醒裝置，亦可稱為打鈴裝置。 關(guān)鍵字： 打鈴器、 AT89S51 單片機 、 DS130液晶顯示器 Abstract Now fastpaced life, the time more and more demanding, often need time to plan and then to the point in time there should be reminded, which must be used to clock reminder can also be calledrang the bell device. Rang the bell device are many, such as the phone rang the bell system, mechanical bell device of the alarm clock, radio bell systems, etc., but in daily life appear or campus automatic bell system. In school life, the last class of the day are inseparable from the bell system. The bell can provide time for the last class of students and teachers to remind conducive to a reasonable arrangement of the teachers and students to school and learning, but also as a reminder of the schedule of the students schedule, so that teachers and students cana law and scientific timing. Therefore, the core part is the clock part of the bell system, the system provides a time reference. This design is mainly for the applicable requirements of the campus bell system, introduced a microcontrollerbased automatic bell system design method, the system controller is AT89S51 SCM , the DS1307 clock chip provide the system with time, and the LCD displayed on the monitor button can set the time interval of the timer rang the bell time and rang the bell. System software design using C language, C language syntax is simple, easy to use, very convenient to be used to plete the software design. This paper presents the design circuit is simple, low cost, and practical. Key words: Rang the bell AT89S51 SCM the DS1307 LCD monitors 目錄 摘要 ............................................................................................................................................. I Abstract ...................................................................................................................................... II 1 緒論 ........................................................................................................................................ 1 選題目的及意義 .............................................................................................................. 1 技術(shù)發(fā)展概況 .................................................................................................................. 1 論文內(nèi)容與結(jié)構(gòu) .............................................................................................................. 3 2 方案設(shè)計 ................................................................................................................................ 3 方案比較與選擇 .............................................................................................................. 4 系統(tǒng)方案選擇 ........................................................................................................ 4 時鐘芯片選擇 ........................................................................................................ 4 顯示器件選擇 ........................................................................................................ 5 設(shè)計方案 ......................................................................................................................... 5 3
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