8十字路口交通灯.doc

... ... 广州大学华软软件学院本科毕业论文论文题目十字路口交通灯控制系统的设计与实现专业电子信息工程班级11电子信息工程(嵌入式系统开发) 姓名黄开平学号1140910118 指导教师李芳广州大学华软软件学院电子系 2015 年4月... ... 摘要近年来随着科技的飞速发展,单片机的应用正在不断深入,同时带动传统控制检测技术日益更新。在实时检测和自动控制的单片机应用系统中,单片机往往作为一个核心部件来使用,仅单片机方面知识是不够的,还应根据具体硬件结构软硬件结合,加以完善。十字路口车辆穿梭,行人熙攘,车行车道,人行人道,有条不紊。靠的就是交通信号灯的自动指挥系统。本系统采用 STC89C51 单片机以及单片机最小系统和 74HC245 电路以及外围的按键和数码管显示等部件, 设计一个基于单片机的交通灯设计。设计通过两位一体共阴极数码管显示,并能通过按键对定时进行设置。本系统实用性强、操作简单。关键词交通灯;单片机;计时器; STC89C51 ... ... ABSTRACT In recent years, with the rapid development of science and technology,SCM applications are deepening,drive traditional control test technology is increasingly developing at the same time. In real-time detection and automatic control of puter application system, the single chip puter is often used asa ponent. Knowing only single chip puter aspects knowledge isnot enough, combination of hardware, software, and hardware structure is necessary. Crossroads transports, bustling, bike lanes, pedestrian footbridge humanitarian, in an orderly way. These all rely on mand system of traffic lights. This system adopts the STC89C51 microcontroller and the single chip puter minimum system and 74 hc245 keys and digital tube display of circuit and ponents, desiging a traffic light based on single chip puter. By mon cathode digital tube to display, and through the button to set the timing, this system is practical, simple operation. K EY WOEDS T raffic ; light ; SCM ; T iming ; STC89C51 ... ... 目录 ........................................................................................................................ 1 研究的背景和意义.......................................................................................... 1 本文研究的目的.............................................................................................. 1 本文设计的主要内容...................................................................................... 2 2系统方案设计概述.................................................................................................... 3