毕业论文--led点阵广告牌的设计与制作.doc

本科毕业论文(设计) 题目: LED 点阵广告牌的设计与制作院系: 物电系 08级电信( 1)班专业: 电子信息科学与技术姓名: 学号: 指导教师: 教师职称: 教授填写日期: 2011 年 12月 20日贵阳学院本科毕业论文(设计) 1 摘要对于这个设计,我用的主控模块是 AT89 C52 , 驱动 8×8 的点阵式广告牌是由一些简单的外围电路来驱动的,在这个设计中,我们不仅用了 AT89C52 ,还用了四个 74HC595 , 这四个芯片是用来作为 8×8 点阵的驱动,最终能够达到的目标是能是实现——“祝您路途愉快! ”这几个汉字的往左移的过程,也就是说, 整体的电路大致可以分类为两块,一个是外围电路,一个是驱动电路。这两个电路能够一起实现一个 8×8 的点阵广告牌,在人体肉眼观察的情况下,广告牌的亮点都能够显示亮度均匀,不晃眼,可以显示图形和文字。不仅如此,显示的文字还很稳定,特别的清晰无扰动。其显示方式有移入和移出。最后,烧录很方便, 可以实现单片机和电脑等一系列的外围存储设备的传输数据功能。并且能够用软件来仿真出其内容的变化。从另外一个角度来说,LED 点阵是当今新型的显示器件,由多个二极管组成的。通过控制 Led 灯的亮灭个数来控制我所需要显示的图形和文字。关键词:AT89 C52 ;控制模块; 点阵广告牌; 驱动电路;外围电路贵阳学院本科毕业论文(设计) 2 Abstract For this design, I use the main control module is based on AT89C52 and drive the 8*8dot matrix type billboard is driven by some simple peripheral circuits, in this design, we not only use the AT89C52, four 74HC595. These four chip is used as the 8*8dot matrix drive, and ultimately to achieve the target is is able to achieve: "I wish you a pleasant journey!" This several Chinese characters to the left of the process, that is, the overall circuit can be roughly classified as two, one is the external circuit, one is the drive circuit. The two circuits can together to achieve a8*8dot matrix billboards and in the human eye observation, billboard highlights are able to display brightness uniformity, no glare, can display graphics and text. Not only that, the text is still very stable, especially clear without disturbance. The display mode has to move in and out of. Finally, programming is very convenient, data transmission function can achieve a series of single-puter puter peripheral storage devices. And can use the software to simulate the change of its content. From the other point of view, LED dot matrix isa new type of display device, which posed ofa plurality of diodes. By controlling the Led bright lights to control what I need to display graphics and text.. Keywords : AT89C52; control module; dot matrix advertisement board; driving circuit; peripheral circuit 目录第一章前言....