1、 毕毕 业业 设设 计（论文）计（论文） 题题 目目： 多变流水灯控制电路的设计多变流水灯控制电路的设计 学学 院：院：电气与电子信息工程学院电气与电子信息工程学院 专业名称：专业名称： 电气自动化技术电气自动化技术 学学 号：号： 2008 年年 5 月月 20 日日 摘摘 要要 本设计是一 LED 流水灯的设计。 整机以美国 ATMEL 公司生产的 40 脚单片机 AT89C51 为核心，介绍了以它为 控制系统的 LED 灯的动态设计和开发过程。 通过该芯片控制一个行 LED 灯按一定 顺序亮，文中详细介绍了 LED 显示的设计思路。 单片机控制系统程序采用单片机汇编语言进行编辑， 通过编
2、程控制各显示点 对应 LED 阳极和阴极端的电平，就可以有效的控制各显示点的亮灭。 当然流水灯一般只是在用芯片做控制时起修饰作用，若只用单片机做流水 灯，就不能很好体现单片机的强大功能。这里的流水灯只是单片机应用中的最基 础的一方面。 LED 显示以其组构方式灵活、显示稳定、功耗低、寿命长、技术成熟、成本 低廉等特点在车站、证券所、运动场馆、交通干道及各种室内/外显示场合的信 息发布，公益宣传，环境参数实时，重大活动倒计时等等得到广泛的应用。 经实践证明，该系统显示误差小，性能稳定，结构合理，扩展能力强。 关键词：汇编语言；AT89C51 单片机；动态显示；LED ABSTRACT This
3、design is LED flows the lantern floated down river the design. Complete machine 40 foot monolithic integrated circuit AT89C51 which produces by American ATMEL Corporation is a core, introduced take it as the control system LED lamp dynamic design and the performance history. Controls a line of LED l
4、amp through this chip to be bright according to certain order, in the article in detail introduced the LED demonstrationdesignmentality. The monolithic integrated circuit control system procedure uses the monolithic integrated circuit assembly language to carry on the edition, controls each demonstr
5、ation point correspondence LED anode and the cloudy extreme level through the programming, may effective control each demonstration extinguish brightly. Certainly flows the lantern floated down river only is generally when uses the chip makes the control the beautification function, if only uses the
6、 monolithic integrated circuit to do flows the lantern floated down river, cannot very good manifest the monolithic integrated circuit the formidable function.On the one hand here class lantern floated down river only is in the monolithic integrated circuit application most foundation. LED demonstrated by its fabric way nimble, the demonstration stable, the power loss low, the life long, the technology mature, the cost inexpensive an
