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在许多比赛活动中,为了准确、公正、直观地判断出第一抢答者,通常设置一台抢答器。通过抢答器的数显,灯光和音响等手段指示出第一抢答者。同时还可以设置定时、记分犯规及奖惩等多种功能。 本设计采用手动抢答的方式,有人抢答后,系统自动封锁其他人的抢答按钮,使其不能再抢答,从而实现抢答功能。 数字抢答器由主体电路与扩展电路组成。优先编码电路、锁存器、译码电路将参赛队的输入信号在显示器上输出;用控制电路和主持人开关启动报警电路,以上两部分组成主体电路。通过定时电路和译码电路将秒脉冲产生的信号在显示器上输出实现计时功能,构成扩展电路。经过模拟仿真,下载到开发板等工作后数字抢答器成型。
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数字电子技术课程设计报告
设计题目 四人抢答器
摘要
- 1 -
专 业 ******
班 级 ******
姓 名 ******
学 号 ******
指导教师 ******
提交日期 ******
课程设计报告
数字电子技术课程设计报告
在许多比赛活动中,为了准确、公正、直观地判断出第一抢答
者,通常设置一台抢答器。通过抢答器的数显,灯光和音响等手段
指示出第一抢答者。同时还可以设置定时、记分犯规及奖惩等多种
功能。
本设计采用手动抢答的方式,有人抢答后,系统自动封锁其他
人的抢答按钮,使其不能再抢答,从而实现抢答功能。
数字抢答器由主体电路与扩展电路组成。优先编码电路、锁存
器、译码电路将参赛队的输入信号在显示器上输出;用控制电路和
主持人开关启动报警电路,以上两部分组成主体电路。通过定时电
路和译码电路将秒脉冲产生的信号在显示器上输出实现计时功能,
构成扩展电路。经过模拟仿真,下载到开发板等工作后数字抢答器
成型。
关键字
抢答电路 定时电路 报警电路 时序控制
- 2 -
数字电子技术课程设计报告
目录
摘
要····································································································
······1
第 1 章 概述
·························································································3
第 2 章 课程设计任务及要求
····························································4
2.1 设计任务
···············································································4
2.2 设计要求
···············································································4
第 3 章 系统设计
- 3 -
数字电子技术课程设计报告
··············································································5
3.1 设计方案
················································································5
3.2 系统设计
·················································································5
3.2.1 结构框图及说明 ·························································5
3.2.2 系统原理图及工作原理 ·············································6
3.3 单元电路设
计············································································7
第 4 章 软件仿真
·················································································12
4.1 仿真电路图
··············································································12
4.2 仿真过程
··················································································12
4.3 仿真结果
··················································································14
第 5 章 安装调试
·················································································14
5.1 安装调试过程
··········································································14
5.2 故障分析
··················································································15
第 6 章 心得体会
··················································································16
附录 使用元件清单
··············································································18
参考文
献·························································································18
- 4 -
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资源评论
- xueruiwen2012-11-19希望能有6路的,还是感谢作者!!!
- 小哈就是小王子2014-11-15其实我需要的是八路的,但四路的确实也给了我一些启发,谢谢。
- lei97142014-06-03目测高大上,借鉴一用
- ggloi2011-12-14资源是不错,可惜只是4路的
tangshisong
- 粉丝: 2
- 资源: 5
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