畢業(yè)論文 可預(yù)置定時顯示報警系統(tǒng)的設(shè)計.doc
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畢業(yè)論文 可預(yù)置定時顯示報警系統(tǒng)的設(shè)計,目 錄中文摘要1英文摘要2引言31 總體設(shè)計32 單元電路設(shè)計32.1 控制電路32.2 秒脈沖發(fā)生電路52.3 定時電路82.3.1 計數(shù)電路82.3.2 存儲電路 102.4 譯碼顯示電路 112.4.1 數(shù)碼管 112.4.2 譯碼驅(qū)動器 122.5 報警電路 143 整體電路 144 結(jié)語 16參考文獻(xiàn) 17致...
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目 錄
中文摘要……………………………………………………………………………1
英文摘要……………………………………………………………………………2
引言…………………………………………………………………………………3
1 總體設(shè)計…………………………………………………………………………3
2 單元電路設(shè)計……………………………………………………………………3
2.1 控制電路………………………………………………………………………3
2.2 秒脈沖發(fā)生電路………………………………………………………………5
2.3 定時電路………………………………………………………………………8
2.3.1 計數(shù)電路……………………………………………………………………8
2.3.2 存儲電路 …………………………………………………………………10
2.4 譯碼顯示電路 ………………………………………………………………11
2.4.1 數(shù)碼管 ……………………………………………………………………11
2.4.2 譯碼驅(qū)動器 ………………………………………………………………12
2.5 報警電路 ……………………………………………………………………14
3 整體電路 ………………………………………………………………………14
4 結(jié)語 ……………………………………………………………………………16
參考文獻(xiàn) …………………………………………………………………………17
致謝 ………………………………………………………………………………18
個人簡歷 …………………………………………………………………………19
摘 要
隨著現(xiàn)代電子技術(shù)的發(fā)展，有關(guān)定時方面的產(chǎn)品越來越豐富。本文基于數(shù)字集成電路設(shè)計了一定時器，具有可預(yù)置時間，顯示，報警的功能。文章詳細(xì)介紹了定時器各個組成部分選擇及使用方法，系統(tǒng)各部分的工作原理。由振蕩器產(chǎn)生周期1秒的方波，分別用來加計數(shù)，通過計數(shù)器后輸出BCD碼，BCD碼經(jīng)過譯碼器翻譯在顯示器上進性顯示。首先，根據(jù)設(shè)計要求，設(shè)計電路原理方框圖，然后，通過對電路原理的分析，對電路元件進行選擇并設(shè)定相應(yīng)的電圖元件參數(shù)，最后，設(shè)計電路的接線圖并對整個系統(tǒng)進行功能測試。整個系統(tǒng)通過劃分，形成了多個簡單的部分，使得復(fù)雜的系統(tǒng)得以簡化。
關(guān)鍵詞：定時器；集成電路；可預(yù)置時間；報警。
Abstract
Along with the modern electronic technology development, the related aspect product more and more is fixed time rich.This article has designed a timer based on the digital integrated circuit, has may initialize the time, demonstrated, reports to the police function. The article in detail introduced the timer each constituent choice and the application method, the system various part of principle of work.square-wave, he cycle of 1 second, by the oscillator , were used to increase count by the counter after the output BCD code, BCD code read encoder monitors progress of the translation in the show. First, according to designs the request, designs the circuitry block diagram, then, through to the circuitry analysis, carries on the choice and the hypothesis corresponding electrograph part parameter to the circuit element, finally, designs the electric circuit the wiring diagram and carries on the function test to the overall system. The overall system through the division, has formed many simple parts, causes the complex system to be able to simplify.
Key Words：timer; integrated circuit; preset time; alarm.
中文摘要……………………………………………………………………………1
英文摘要……………………………………………………………………………2
引言…………………………………………………………………………………3
1 總體設(shè)計…………………………………………………………………………3
2 單元電路設(shè)計……………………………………………………………………3
2.1 控制電路………………………………………………………………………3
2.2 秒脈沖發(fā)生電路………………………………………………………………5
2.3 定時電路………………………………………………………………………8
2.3.1 計數(shù)電路……………………………………………………………………8
2.3.2 存儲電路 …………………………………………………………………10
2.4 譯碼顯示電路 ………………………………………………………………11
2.4.1 數(shù)碼管 ……………………………………………………………………11
2.4.2 譯碼驅(qū)動器 ………………………………………………………………12
2.5 報警電路 ……………………………………………………………………14
3 整體電路 ………………………………………………………………………14
4 結(jié)語 ……………………………………………………………………………16
參考文獻(xiàn) …………………………………………………………………………17
致謝 ………………………………………………………………………………18
個人簡歷 …………………………………………………………………………19
摘 要
隨著現(xiàn)代電子技術(shù)的發(fā)展，有關(guān)定時方面的產(chǎn)品越來越豐富。本文基于數(shù)字集成電路設(shè)計了一定時器，具有可預(yù)置時間，顯示，報警的功能。文章詳細(xì)介紹了定時器各個組成部分選擇及使用方法，系統(tǒng)各部分的工作原理。由振蕩器產(chǎn)生周期1秒的方波，分別用來加計數(shù)，通過計數(shù)器后輸出BCD碼，BCD碼經(jīng)過譯碼器翻譯在顯示器上進性顯示。首先，根據(jù)設(shè)計要求，設(shè)計電路原理方框圖，然后，通過對電路原理的分析，對電路元件進行選擇并設(shè)定相應(yīng)的電圖元件參數(shù)，最后，設(shè)計電路的接線圖并對整個系統(tǒng)進行功能測試。整個系統(tǒng)通過劃分，形成了多個簡單的部分，使得復(fù)雜的系統(tǒng)得以簡化。
關(guān)鍵詞：定時器；集成電路；可預(yù)置時間；報警。
Abstract
Along with the modern electronic technology development, the related aspect product more and more is fixed time rich.This article has designed a timer based on the digital integrated circuit, has may initialize the time, demonstrated, reports to the police function. The article in detail introduced the timer each constituent choice and the application method, the system various part of principle of work.square-wave, he cycle of 1 second, by the oscillator , were used to increase count by the counter after the output BCD code, BCD code read encoder monitors progress of the translation in the show. First, according to designs the request, designs the circuitry block diagram, then, through to the circuitry analysis, carries on the choice and the hypothesis corresponding electrograph part parameter to the circuit element, finally, designs the electric circuit the wiring diagram and carries on the function test to the overall system. The overall system through the division, has formed many simple parts, causes the complex system to be able to simplify.
Key Words：timer; integrated circuit; preset time; alarm.
