多路智力竞赛抢答器设计实验报告.pdfVIP

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课程设计报告

多路智力竞赛抢答器设计

院系：电气与电子工程学院

班级：电信科学类1202

学号：1204110206

姓名：罗伟

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多路智力竞赛抢答器设计

目录

一前言·························································1

1设计内容及要求·········································1

2实验内容及方法·········································2

3工作过程简介············································2

正文·

二、····················································4

1系统概述··················································4

2单元电路设计方案和原理说明·······················4

抢答器电路设计···········································4

定时电路设计··············································6

3电路的安装与调试······································8

4心得与体会···············································9

三、元器件明细表··········································10

四、参考文献················································10

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前言

一、设计内容及要求：

设计内容：本课题要求设计一台可供8名选手参加比赛的智力竞赛抢

答器。

设计要求：

1．基本功能

(1)抢答器同时供8名选手或8个代表队比赛，分别用8个按钮S0~S7

表示。

(2)设置一个系统清除和抢答控制开关S，该开关由主持人控制。用来

控制系统清零（编号显示数码管灭灯）和抢答的开始。

(3)抢答器具有锁存与显示功能。即抢答开始后，选手按动按钮，锁

存相应的编号，并在编号显示器上显示该编号。同时封锁输入编码电

路，禁止其他选手抢答。优先抢答选手的编号一直保持到主持人将系

统清除为止。

2．扩展功能

(1)抢答器具有定时抢答功能。要求定时器开始倒计时，并用定时显

示器显示倒计时时间。

(2)参赛选手在设定时间（30秒）内抢答，抢答有效，同时定时器停