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交通信号灯的设计与制作讲述
淄博职业学院毕业论文设计
PAGE \* MERGEFORMAT 22
毕 业 设 计
题目 交通信号灯的设计与制作
姓 名 周瑶 学 号 201303120002
系（院）电子电气工程学院 班 级 P13电气一班
指导教师 王正方 职 称 教授
2016年5月
目录
引言··································································3
1设计意义及要求·····················································4
1.1设计意义······················································4
1.2 设计要求······················································4
2 HYPERLINK \l _Toc172184315 方案设计 ·······················································5
2.1 HYPERLINK \l _Toc172184316 设计思路·····················································6
2.2 HYPERLINK \l _Toc172184316 方案设计·····················································6
2.2.1设计方案一··············································7
2.2.2设计方案二··············································7
2.3方案比较·····················································8
3 部分电路设计······················································9
3.1数码管显示单元···············································9
3.2计时单元······················································11
3.3片选单元······················································12
3.4脉冲产生模块··················································13
3.5红、绿、黄灯的控制···········································??14
4仿真操作步骤及使用说明·············································16
4.1软件仿真步骤··················································16
4.2仿真使用说明··················································17
5调试与检测的方法与技巧·············································18
5.1 调试中故障及解决办法·········································19
5.2 调试与运行结果···············································19
结束语······························································20
参考文献····························································21
引言
交通的发达，标志着城市的发达，相对交通的管理则显得越来越重要。交通灯是城市交通中的重要指挥系统，它与人们日常生活密切相关，随着人们生活水平的提高，对交通管制也提出了更高的要求，因此提供一个可靠、安全、便捷的多功能交通灯控制系统有着现实的必要性。
对于复杂的城市交通系统，为了确保安全，保证正常的交通秩序，十字路口的信号控制必须按照一定的规律变化，以便于车辆行人能顺利地通过十字路口。
本交通灯设计主要由555定时器，计数器74LS
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