【正文】 編號(hào) 本科生畢業(yè) 設(shè)計(jì) 基于單片機(jī)籃球賽計(jì)時(shí)計(jì)分器設(shè)計(jì) Design of Timing and Scoring of Basketball Competition Based on Single Chip Computer 學(xué) 生 姓 名 : 專 業(yè) : 學(xué) 號(hào) : 指 導(dǎo) 教 師 : 學(xué) 院 : 2020 年 06 月 長春理工大學(xué)畢業(yè)設(shè)計(jì) 摘 要 籃球比賽計(jì)時(shí)計(jì)分器 是為了解決 籃球比賽時(shí)計(jì)分與計(jì) 時(shí)準(zhǔn)確的 問題。此裝置利用單片機(jī) AT89C51 完成了計(jì)時(shí)和計(jì)分的功能。本文詳細(xì)地介紹了系統(tǒng)硬件與軟件的設(shè)計(jì)過程， 設(shè)計(jì)由 AT89C51 編程控制 LED 七段數(shù)碼管作顯示的球賽計(jì)時(shí)計(jì)分系統(tǒng)。該系統(tǒng)具有賽程定時(shí)設(shè)置，賽程時(shí)間暫停，及時(shí)刷新甲、乙雙方的成績以及賽后成績暫存等功能。它具有價(jià)格低廉，性能穩(wěn)定，操作方便并且易于攜帶等特點(diǎn)。廣泛適合各類學(xué)?；蛘咝⌒蛨F(tuán)體作為賽程計(jì)時(shí)計(jì)分。 關(guān)鍵詞 ：單片機(jī) 籃球賽計(jì)時(shí) 籃球賽計(jì)分 ABSTRACT Time scoring basketball game is to solve the game of basketball with the time points when the issue of accuracy. This device is pleted using AT89C51 single chip timing and scoring functions. This article describes in detail the system hardware and software design process, design by AT89C51 programming control for LED SevenSegment LED display subsystem of the game time. The system is set up with the schedule from time to time, schedule time to pause, refresh in time A, B, and after the two sides achieved a temporary success functions. It is inexpensive, stable performance, easy to operate and easy to carry and so on. A wide range suitable for all types of schools or small groups as timepoints race. Key words: MCU Basketball Time Basketball Scoreboard 長春理工大學(xué)畢業(yè)設(shè)計(jì) I 目 錄 摘 要 ................................................................................................................................ 1 Abstract ........................................................................................................................... 1 目 錄 ................................................................................................................................ I 第一章 引言 ................................................................................................................. 1 背景知識(shí)介紹 .................................................................................................. 1 設(shè)計(jì)意義 ......................................................................................................... 1 設(shè)計(jì)目的 ......................................................................................................... 1 第二章 系統(tǒng)硬件介紹 ................................................................................................... 3 MCS51單片機(jī)簡述 ......................................................................................... 3 單片機(jī) AT89C51簡介 ............................................................................ 3 主要特性 ................................................................................................ 4 管腳說明 ................................................................................................ 4 芯片擦除 ................................................................................................ 6 掉電模式 ................................................................................................ 6 程序儲(chǔ)存器的加密 .................................................................................. 6 顯示器 及其接口 ............................................................................................... 7 顯示器介紹 ............................................................................................ 7 結(jié)構(gòu)與原理 ............................................................................................ 7 LED顯示器顯示方式 .............................................................................. 8 CD4094芯片介紹 ............................................................................................. 8 74LS21芯片介紹 .............................................................................................. 9 報(bào)警器 ............................................................................................................. 9 報(bào)警器的分類 ....................................................................................... 10 報(bào)警器工作原理 ................................................................................... 10 第三章 硬件電路設(shè)計(jì) ................................................................................................. 11 系統(tǒng)方案設(shè)計(jì) ................................................................................................ 11 系統(tǒng)構(gòu)成框圖 ....................................................................................... 11 器件選擇 .............................................................................................. 12 硬件總體設(shè)計(jì) ................................................................................................ 12 計(jì)時(shí)電路部分 ................................................................................................ 12 振蕩電路 .............................................................................................. 12 計(jì)時(shí)電路的工作原理 ............................................................................ 15 計(jì)分電路部分 ................................................................................................ 16 串行接口工作原理 ................................................................................ 16 計(jì)分電路原理圖 .....................................................