基于中小规模集成电路的数字交通灯 毕业设计

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信息职业技术学院

毕业设计说明书(论文)

设计(论文)题目:基于中小规模集成电路的 数字交通灯 专 业: 通信技术 班 级: 学 号: 姓 名: 指导教师:

二ΟΟ八年十二月三十日

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四川信息职业技术学院毕业设计(论文)任务书

学 生 姓 名 学号 班级 专业 通信技术 设计(或论文)题目 指导教师姓名 职 称 讲 师 高级工程师 基于中小规模集成电路的数字交通灯 工作单位及所从事专业 联系方式 备 注 设计(论文)内容: (1)设计指标 ① 设计一个十字路口的交通灯控制电路,要求东西方向车道和南北方向车道两条交叉道路上的车辆交替运行,每次通行时间都设为45秒。时间可设置修改。 ② 在绿灯转为红灯时,要求黄灯先亮5秒钟,才能变换运行车道; ③ 黄灯亮时,要求每秒闪亮一次。 ④ 东西方向、南北方向车道除了有红、黄、绿灯指示外,每一种灯亮的时间都用显示器进行显示(采用倒计时的方法)。 ⑤ 同步设置人行横道红、绿灯指示。 (2)设计要求 ⑥ 画出电路原理图(或仿真电路图); ⑦ 电路仿真; 进度安排: 第5周:任务下达,理解消化任务要求;初步设计方案确定; 第6周~第10周:设计方案确定,分模块部分完成; 第11周:中期检查,查找问题,分析解决难点; 第12周~第15周:分模块调试,整体电路调试,论文书写等; 第16周:答辩 主要参考文献、资料(写清楚参考文献名称、作者、出版单位): [1] 张克龙.数字电子技术基础.北京:高等教育出版社,1998 [2] 廖常初.可编程序控制器应用技术(第三版).重庆:重庆大学出版社,2000 [3] 廖常初.PLC编程及应用.北京:机械工业出版社,2002 [4] 《中国集成电路大全》编委会.TTL集成电路.北京:国防工业出版社,1985 审 批 意 见 教研室负责人: 年 月 日 备注:任务书由指导教师填写,一式二份。其中学生一份,指导教师一份。

四川信息职业技术学院毕业设计说明书

目 录

摘 要 ··································································································································· 1 第1章 绪 论 ··················································································································· 2 第2章 总体方案设计 ······································································································· 3 第3章 单元电路的设计 ··································································································· 4

3.1 倒计时计数器 ······································································································ 4 3.2 信号灯转换器 ······································································································ 6 3.3 黄灯闪烁控制 ······································································································ 9 第4章 仿真过程与效果分析 ························································································· 10 总 结 ································································································································· 12 致 谢 ································································································· 错误!未定义书签。 参考文献 ····························································································· 错误!未定义书签。 附 录 系统总体电路图 ································································································· 16

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四川信息职业技术学院毕业设计说明书

摘 要

随着微电子技术和集成电路的发展,数字电路和数字科技得到飞速发展,几乎遍及方方面面。数字电路不仅能进行数值运算,进行逻辑判断和运算,而且工作可靠性高,抗干扰性强,所以本次设计采用数字电路。现在化的大城市交通越来越繁忙,交通灯的出现极大地缓解了交通压力。

交通灯的设计比较实用,易于理解。结合制作交通灯的一般原理,再在本次试验设计要求的框架,充分发挥自己的想象,设计出自己的方案:一种简单的交通灯的模型。

关键词 交通灯;交通控制;数字化

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