文档介绍：JINGGANGSHAN UNIVERSITY
本科毕业论文（设计）
题 目：基于单片机AT89C51的八路抢答器设计
学 院 电子与信息工程学院
专 业 电子信息科学与技术
姓 名 周治楠
班 级 10 电信本（1 ）
学 号 90522027
指导教师 曾兀彧老师
起讫时间 ——
基于单片机AT89C51的八路抢答器设计
作者：周治楠指导老师：曾兀彧
【摘要】随着时代的发展，各种各样的竞赛越来越多，各种竞赛成为了人们的一 种独特的娱乐方式，人们在抢答的过程中不仅能享受到趣味， 并且还可以在此过 程中学习到丰富的知识。然而在实际的抢答中，由于视觉的误差，仅仅依靠视觉 很难判断谁先答题，因此，设计出一个电子抢答器系统很有必要， 使比赛更为公 平，即便是两组的抢答时间相差甚微，也能辨别出优先按下的按键的选手。本设 计以AT89C51单片机作为主控中心，当选手按下按键后七段数码管会显示对应选 手编号，同时蜂鸣器电路导通。还设置了复位电路，按下复位键后，系统将重新 启动。该抢答器系统充分利用了 AT89C51单片机稳定性高的特点来弥补人类感知 的误差，使用非常简单，功能强大，实用性强。本设计利用 C51语言汇编，更有
利于实现基本功能。
【关键词】 单片机AT89C51七段数码管；蜂鸣器；复位电路
The Design of Eight-Route Answering Machine Based on
AT89C51 Single Chip Controller
Author: Zhou Zhinan Director: Zen Wuyu
[Abstract] With the development of the ages, different kinds of competitions have bee n inven ted and have become a unique form of en terta inment for people. During the process of every one tried to outdo the others in an sweri ng, people can not only enjoy the fun, but also can learn rich knowledge,However, actually, it is hard to judge who vies to answer first by only relying on visual. Then it' necessary to design an electro nic an sweri ng machi ne system which can give a fair judgeme nt eve n un der the condition that the time between two groups is very small,The system of answering mach ine will use AT89C51 SCM as the core,Whe n the con testa nt presses his or her butt on, the seve n-segme nt LED would display the nu mber of the con testa nt and the buzzer sounds at the same time. This system has also set the reset circuit. If the judger presses the reset butt on, the system in itialized. And this system has made full use of the adva ntages of the AT89C51 SCM which is easy to use, good reliability, powerful, practical and high- stability. Those adva ntages have compe nsated the error caused by person visual. This design will use C51 Ianguage to program which is easy to impleme nt the basic fun cti ons.
[Keywords] AT89C51 SCM; seven-segment LED; buzzer;