旋转LED显示屏毕设(精)

毕业设计(论文旋转 LED 动态显示屏的设计

院(系自动控制系

专业班级自动化 XXX

学生姓名 XXX

学号 090XXX

指导教师 XXXX

评阅教师 ___ _

20XX 年 1X 月

摘要

进入新世纪, 光电子产业在社会上受到了广泛重视, LED 显示作为信息传播中的一种重要的手段,已被广泛应用于室内外需要进行服务内容和服务宗旨宣传的公众场所。尤其在没有投影仪的地方, 旋转 LED 的优越性体现得非常明显,在当今高度发达的经济市场上,富有创意、应用面广的、挪移方便、具有吸引力的信息传播系统显得十分的重要! 二十一世纪是数字传播的时代, 随着 LED 技术的应用和普及, 数字 LED 显示屏的应用非常广泛。传统的 LED 显示屏以平面效果居多,旋转式LED 环形显示屏的设计, 是利用人眼视觉暂留效应, 通过高速电机带动 LED 阵列旋转,给人们一种新的视觉体验。本设计基于 STC89C52RC 单片机, 采用独立的 LED , 通过直流电机带动旋转, 可形成平面显示效果可广泛应用于家居,企业和公共场所。

本文在简要介绍旋转 LED 显示屏工作原理的基础上,详细说明了旋转显示屏的方案选择和系统结构设计,以及具体硬件电路和软件设计流程。在此基础上,本文还讨论了旋转 LED 显示屏设计中需要注意的一些关键问题,给出了相应的解决方案,

并提出了一些改进和完善本系统的思路和设想。

实际制作的 LED 旋转显示屏技术参数的测试结果,以及实际的运行效果表明,本文设计和制作的旋转显示屏符合设计要求,具有一定的创新性和实际应用价值。

旋转 STC89C52RC单片机时钟芯片 DS1302 LED灯

ABSTRACT

In the new century, the photoelectron industry wide attention by society, LED display as an important means of information dissemination, has been widely used in indoor and outdoor services, content and services needed publicity purposes in public places. In particular, there is no projector in place, rotating LED's superiority reflected very clearly in today's highly developed economy markets, creative, application wide, the diversion of convenient, attractive information dissemination system is extremely important! The twenty-first century is the era of digital communication, with the LED technology and the popularity of digital LED display is widely used. Traditional LED display to effect mostly flat, circular rotating LED display design is the use of temporary stay in the human visual effects, high-speed motor to drive the LED array rotation, the formation of 360-degree circular display can stand on any point of view, complete without viewing dead, to give people a new visual experience. The design is based on STC89C52 MCU, using separate LED, driven by DC motor rotation, can form two-dimensional effect, it can be widely used in homes, businesses and public places.

On the base of introducing the working principle briefly, the project choice and system configuration of the revolving LED display are shown in this paper, and the hardware and software of the system are introduced in detail. Otherwise, some of the design keys of the novel LED display are discussed, and some improved steps are given in the paper.

The performance and the technical parameters measured by metrical instrument show that the system meets the design requirements. Therefore, the novel LED display has some creative design and applied value by all means.

Keywords: Rotary; LED array; STC89C52

第一章绪论

1.1课题背景

随着信息化社会的到来, 促进了现代信息显示技术的发展, 形成了 CRT 、LCD 、 PDP 、 LED 、 EL 、 DLP 等系列的信息显示产品,纵观各类显示产品, 各有其所长和适宜的市场应用需求。但是随着 LED 材料技术和工艺的提升, LED 显示屏以突出的优势成为平板显示的主流产品之一,并在社会经济的许多领域得到广泛应用,主要包括:

①证券交易、金融信息显示;

②机场航班、汽车站动态信息显示;

③港口、车站旅客引导信息显示;

④体育场馆信息显示;

⑤道路交通信息显示;

⑥调度指挥中心信息显示;

⑦邮政、电信、商场购物中心等服务领域的业务宣传及信息显示; ⑧广告媒体新产品介绍;

⑨大型演出和集会;

⑩展览会、宣讲会。

1.1.1此设计本身存在的作用

进入新世纪, 光电子产业得到社会广泛的重视, 信息显示技术发展迅速, 随着LED 器件材料性能的不断提高, 已广泛应用于室内外需要进行服务内容和服务宗旨