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轉(zhuǎn)換比率:金額 X 10=金幣數(shù)量, 例100元=1000金幣 | 論文字?jǐn)?shù):10938 | ![]() | |
折扣與優(yōu)惠:團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式:Word格式(*.doc) | ![]() |
摘要:隨著電子技術(shù)的發(fā)展,它在各個領(lǐng)域的應(yīng)用也越來越廣泛。人們對它的認(rèn)識也逐步加深,人們也利用了電子技術(shù)以及相關(guān)的知識解決了一些實際問題。如:智能搶答器的設(shè)計與制作。搶答器是競賽問題中一種常用的必備裝置,從原理上講,它是一種典型的數(shù)字電路,數(shù)字搶答器由主體電路與擴(kuò)展電路組成。優(yōu)先編碼電路、鎖存器、譯碼電路將參賽隊的輸入信號在顯示器上輸出;用控制電路和主持人開關(guān)啟動報警電路,以上兩部分組成主體電路。通過定時電路和譯碼電路將秒脈沖產(chǎn)生的信號在顯示器上輸出實現(xiàn)計時功能,構(gòu)成擴(kuò)展電路。經(jīng)過布線、焊接、調(diào)試等工作后數(shù)字搶答器形成。在搶答電路中利用一個優(yōu)先編碼器譯出最先搶到答題權(quán)的選手的編號并經(jīng)LED顯示器顯示出來,同時還要封鎖電路以防其他選手再搶答,當(dāng)選手答題完成后,主持人將系統(tǒng)恢復(fù)至零。 關(guān)鍵詞:搶答器; 定時; 報警; 鎖存; 時序控制
Abstract: With the development of electronic technology, it,s application in various fields has become increasingly widespread. People have gradually deepened understanding. People have also made use of electronic technology and related know-how to solve some practical problems. Such as: Smart Answer Design and production. Answer is in the race must have a common device, from the principle, it is a typical digital circuit. Answer the number of circuits is controlled by the main circuit and expansion. Priority encoder circuit, latch, decoder circuit will be teams of the input signal in the display output; host by the beginning of the start button above the main circuit composed of two part. Time through the timing circuit functions, constitute the expansion of the circuit. After wiring, welding, testing, etc. Answer the number of devices after the forming. Answer circuit in a priority encoder to use given the right answer the first player to grab the code and displayed by the LED display, but also to prevent other players blocking circuits Answer again. When players complete answer, the host to bring the system back to zero. Keywords: Answering;Timing; Warning;Latched;Time sequence controlling
本系統(tǒng)采用單片機(jī)作為整個控制核心??刂葡到y(tǒng)的四個模塊為:顯示模塊、存儲模塊、語音模塊、搶答開關(guān)模塊。該系統(tǒng)通過開關(guān)電路四個按鍵輸入搶答信號,利用一個數(shù)碼管來完成顯示功能,用按鍵來讓選手進(jìn)行搶答,在數(shù)碼管上顯示哪一組先答題的,從而實現(xiàn)整個搶答過程。 隨著我國經(jīng)濟(jì)和文化事業(yè)的發(fā)展,在很多公開競爭場合要求有公正的競爭裁決,諸如證券、股票交易及各種智力競賽等,因此出現(xiàn)了搶答器。搶答器一般是有很多電路組成的,線路復(fù)雜,可靠性不高,功能也比較簡單,特別是當(dāng)搶答路數(shù)很多時,實現(xiàn)起來就更為困難。因此我們設(shè)計了以單片機(jī)為核心的新型智能的搶答器,在保留原始搶答器的基本功能的同時又增加了數(shù)碼管顯示電路實現(xiàn)了其它功能。搶答器又稱為第一信號鑒別器,其主要應(yīng)用于各種知識競賽、文藝活動等場合。
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