【正文】 畢業(yè)設(shè)計(jì)論文 II Abstract Rapid development in the pattern of today39。 指導(dǎo)思想是利用紅外發(fā)光管發(fā)射紅外線，紅外接收管接收此紅外線， 當(dāng)有人或物擋住紅外光時(shí)，將紅外接收管的低電平信號(hào)發(fā)送至單片機(jī) ，同時(shí)將這個(gè)電平信號(hào)送入單片機(jī)進(jìn)行控制計(jì)數(shù)，并 且使數(shù)碼管顯示數(shù)值。數(shù)字計(jì)數(shù)器有多種形式，總體來(lái)說(shuō)有接觸式和非接觸式兩種，在科技發(fā)展的今天，非接觸式紅外計(jì)數(shù)器得到了廣泛的應(yīng)用。 畢 業(yè) 設(shè) 計(jì) 論 文 基于 51 單片機(jī)的紅外計(jì)數(shù)器設(shè)計(jì) 指導(dǎo)老師姓名 ： 專 業(yè) 名 稱： 電氣自動(dòng)化 班 級(jí) 學(xué) 號(hào)： 11137201 論文提交日期： 年 月 日 論文答辯日期： 年 月 日 年 月 日 畢業(yè)設(shè)計(jì)論文 2 摘 要 隨著 當(dāng) 今社會(huì)的飛速發(fā)展，越來(lái)越多的流水 線上的產(chǎn)品和各種公共場(chǎng)所需要進(jìn)行自動(dòng)計(jì)數(shù)?；趩纹瑱C(jī)構(gòu)成的產(chǎn)品自動(dòng)計(jì)數(shù)器有直觀和計(jì)數(shù)精確的優(yōu)點(diǎn)，目前已在各種行業(yè)中得到廣泛應(yīng)用。本設(shè)計(jì)采用一對(duì)紅外發(fā)射接收管作為紅外計(jì)數(shù)器的信號(hào)檢測(cè)頭，具有價(jià)格低廉，抗干擾性好，結(jié)構(gòu)簡(jiǎn)單，操作方便等特點(diǎn)。這樣就得到要統(tǒng)計(jì)的人或物的數(shù)量。s society, more and more of the pipeline of products and a variety of business occasions need to automatically count. Based on SCM products constitute automatic counter has the advantages of intuitive and accurate count, now in a variety ofmonly used in industry. This article is designed to counter radiostyle method using infrared,interference immunity and high reliability. The design of the guiding idea is to use infrared emission infrared LED, infrared receiver toreceive the infrared, and enlarge, forming high mutation signal. When persons or blockinfrared light, the receiver does not receive infrared control signals, the amplifier the output low,while the level control signal into the microcontroller counts, and by decoding the digital displaydrive circuit values. This will be the number of persons or things to statistics. The AT89C51 microcontroller chip design applications as a core, 4 LED digital tube, the useof infrared LM324 chip count, and add the alarm function. This implementation method has theadvantage of simple circuit, reliable, realtime, simple operation, easy programming and so on. Key words: SCM。 LED digital tube 畢業(yè)設(shè)計(jì)論文 0 目 錄 摘 要 ............................................................................................................. 2 Abstract ....................................................................................................... II 第一章 緒論 ................................................................................................. 1 前言 ............................................................... 1 背景與意義 ......................................................... 1 國(guó)內(nèi)外研究的概況 .............................................. 1 研究主要成果 .................................................. 2 發(fā)展趨勢(shì) ...................................................... 3 設(shè)計(jì)任務(wù) ............................................................ 4 第二章 基于單片機(jī)構(gòu)成的產(chǎn)品自動(dòng)計(jì)數(shù)器的設(shè)計(jì) .……………………… 4 方案論證與選擇 ..................................................... 4 系統(tǒng)總體框圖和原理 ................................................. 6 主控芯片簡(jiǎn)介 ....................................................... 7 單片機(jī)的發(fā)展及趨勢(shì) ............................................ 7 51 系列單片機(jī)的主要特點(diǎn) ....................................... 8 第三章 紅外線計(jì)數(shù)器 硬件設(shè)計(jì) ................................................................ 10 單片機(jī)最小系統(tǒng)的設(shè)計(jì) .............................................. 10 、紅外線檢測(cè)電路 .................................................... 11 計(jì)數(shù)顯示部分 ...................................................... 11 第四章 紅外線計(jì)數(shù)器軟件設(shè)計(jì) ................................................................ 12 主程序設(shè)計(jì) ......................................................... 13 子程序設(shè)計(jì) ........................................................ 14 LED 顯示程序設(shè)計(jì) ................................................ 14 第五章 系統(tǒng)調(diào)試 ........................................................................................ 16 系統(tǒng)硬件調(diào)試 ...................................................... 16 系統(tǒng)軟件調(diào)試 ....................................................... 17 第六章 結(jié)論 .....................................................................