籃球比賽計時計分器的設(shè)計與仿真





摘 要

隨著單片機在各個領(lǐng)域的廣泛應(yīng)用，許多用單片機作控制的計時計分系統(tǒng)也應(yīng)運而生，如用單片機控制LCD液晶顯示的計時計分器，用單片機控制LED七段顯示的計時計分器等。本文設(shè)計了一種由AT89C51型號單片機編程控制LED七段數(shù)碼管作顯示的籃球賽計時計分系統(tǒng)，并仿真實現(xiàn)。該系統(tǒng)具有賽程時間設(shè)置，賽程時間暫停，以及即時刷新甲乙兩隊比分，上下半場交換比分，時間結(jié)束報警等功能。此外，該系統(tǒng)具有低功耗、可靠性、安全性以及低成本等特點，可廣泛用于學校和小團體作為賽程計時計分。


關(guān)鍵詞：單片機AT89C51，籃球賽計時，籃球賽計分，仿真


 


 


 


 


 


Abstract

With the extensive applications of the MCU, many system of timing and scoring which is controlled by MCU have come into being, for example the timing and scoring indicator displayed by the LCD which is controlled by MCU, and the timing and scoring indicator displayed by the MCU controlled seven-segment numeric display. In this article, the author designed a timing and scoring system for the basketball game showed by the seven-segment numeric display and it was programmed and controlled by the MCU in type AT89C51. This system has realized its simulation implementation. This system has various functions, such as setting and suspending the time of the game schedule, refreshing the results of the two groups and the point exchanging the places of the scores after shift their playgrounds and giving alarm when the game is over.Besides,this device owns the characters of low power consumption, reliability, safety and low cost, etc. the system is popular among the schools and group as a match schedule timing and scoring indicator.


Keywords: SCM AT89C51, basketball timing, basketball scoring，simulation

 

目錄

摘 要 I

ABSTRACT II

第1章 緒論 1

1.1背景知識介紹 1

1.2 設(shè)計目的和意義 1

1.3球賽計時計分系統(tǒng)的發(fā)展和現(xiàn)狀 2

1.4本文的主要研究內(nèi)容 2

第2章 系統(tǒng)硬件介紹 3

2.1  MCS-51單片機簡述 3

2.2顯示器及其接口 5

2.3 CD4511芯片介紹 7

2.4 74LS21芯片介紹 8

2.5報警器工作原理 8

第3章 硬件電路設(shè)計 9

3.1 系統(tǒng)硬件組成和器件選擇 9

3.2基本功能介紹 10

3.3計時電路和計分電路 11

3.4 串行接口工作原理 14

3.5比分校正控制電路 14

3.6球賽計時計分器的工作過程 15

第4章 系統(tǒng)軟件設(shè)計和PROTEUS仿真 16

4.1總流程框圖 16

4.2主要模塊說明 16

4.3 系統(tǒng)仿真情況 18

第5章 結(jié)束語 20

參考文獻 21

致 謝 22

附 錄  23