课程设计---交通灯控制器

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1、*********学院 电子综合应用课程设计总结报告   题目：交通灯控制器  专业应用电子技术班级**电子*班姓名学号指导教师电子工程系2011年12月31日摘要在一个交通繁忙的十字路口，没有交通灯来控制来往车辆和行人的通行，假设也没有交警，那会发生什么事情呢？后果是难以想象的，可能会陷入一片混乱，甚至瘫痪。当然我们每个人都不希望这样。我们作为社会的一员，每人都有责任为它的更加先进和快捷做出力所能及的事情。我们设计了这个交通灯信号控制系统通过本课程设计，使我们加强对电子技术课程内容的理解和掌握，学会使用数字电子技术设计和制做自动控制装置的方法，掌握电子电路的基本分析方法和设计方法，进一步

2、提高分析解决实际问题的综合能力，也为将来的就业或继续深造做好准备。目录摘要····························································2目录····························································3第一章课题·····················································1.1目的························································41.2任务与要求·········

3、·········································4第二章设计简介及设计方案论述··································2.1系统总体设计方案的描述······································42.2方案论证与设计··············································52.3LED显示器件·················································62.4时钟电路·······························

4、·····················72.5电源电路模块的设计··········································72.6元器件选择··················································82.7实验环境····················································92.8程序························································9第三章结果与调试································

5、················3.1系统调试···················································15第四章课程设计总结············································15第五章参考文献·················································16第一章课题1.1目的（1）了解并掌握电路的一般设计方法，具备初步的独立设计能力。（2）进一步熟悉常用电子器件的类型和特性，并掌握合理选用的原则。（3）提高综合运用所学的理论知识。独立分析和解决问题的能力。（4）进一步熟

6、悉电子仪器的正确使用方法。（5）初步掌握对电子线路安装与调试使用方法。1.2任务与要求：设计一个十字路口的交通信号灯控制器，控制A、B两条交叉道上的车辆通行，具体要求如下：接通电源，系统进入自动控制状态，此时数码管从30开始作减1显示，主道亮绿灯，支线亮红灯，当剩下最后5秒时，黄灯闪亮，蜂鸣器叫；30秒时间到后，系统转向支线通行，此时主道亮红灯，支线亮绿灯，数码显从20开始作减1处理，到最后5秒时，黄灯闪亮，蜂鸣器叫；按动主道紧急通行键时，主道亮绿灯，支线红灯，通行50秒；结束后自动返回到原来的状态；按动支线紧急通行键时，支线亮绿灯，主道红灯，通行50秒；结束后自动返回到原来的状态；第二章

7、设计简介及设计方案论述系统原理框图AT89C51单片机时钟电路LED灯控制按键控制声音控制驱动装置倒计时显示装置2.2方案论证与设计一．电源提供方案为使模块稳定工作，须有可靠电源。本次设计考虑了两种电源方案：方案一：采用独立的稳压电源。此方案的优点是稳定可靠，且有各种成熟电路可供选用；缺点是各模块都采用独立电源，会使系统复杂，且可能影响电路电平。方案二：采用单片机控制模块提供电源。该方案的优点是系统简明扼要，节约成本；缺