基于单片机的贴片led旋转屏数字钟.doc

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基于单片机的贴片led旋转屏数字钟,基于单片机的贴片led旋转屏数字钟内容摘要现在是一个知识爆炸的新时代。新产品、新技术层出不穷,电子技术的发展更是日新月异。可以毫不夸张的说,电子技术的应用无处不在,电子技术正在不断地改变我们的生活,改变着我们的世界。近年来,随着电子产品的发展,人们对时钟的要求越来越高,而在对要求高之余,又要讲究有创意,新奇,所以在这个...
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内容介绍

此文档由会员 小花仙66 发布

基于单片机的贴片LED旋转屏数字钟


内容摘要
现在是一个知识爆炸的新时代。新产品、新技术层出不穷,电子技术的发展更是日新月异。可以毫不夸张的说,电子技术的应用无处不在,电子技术正在不断地改变我们的生活,改变着我们的世界。近年来,随着电子产品的发展,人们对时钟的要求越来越高,而在对要求高之余,又要讲究有创意,新奇,所以在这个基础上设计一款既能满足人们的要求,又要有创意的时钟装置是很有必要的,贴片LED旋转屏数字钟在可以计时的基础上,又能够满足人们对事物要有创意的需求。
本次设计运用LED旋转屏采用一排贴片LED流水灯,令其高速旋转,利用视觉残留效应,形成高分辨率的点阵屏,能显示字符,汉字,甚至图案,而且图案看起来还有悬浮于空中的透明效果,非常炫目。再加上单片机控制,又可成为一款独特的数字钟。人眼在观察景物时,光信号传入大脑神经,需经过一段短暂的时间,光的作用结束后,视觉形象并不立即消失,这种残留的视觉称“后像”,视觉的这一现象则被称为“视觉暂留”。其具体应用是电影的拍摄和放映。原因是由视神经的反应速度造成的,其时值是二十四分之一秒。是动画、电影等视觉媒体形成和传播的根据。

关键字:LED流水灯、光电门、红外接收、电源管理、单片机


Based on SCM SMD LED rotating screen
a digital clock Design and production
Content abstract
Now is a new era of knowledge explosion. New products, new technologies emerge in endlessly, the development of electronic technology is changing. Can it is no exaggeration to say, electronic technology applications are ubiquitous, electronic technology is changing our life, change our world. In recent years, with the development of electronic products, people on the clock and taller to the requirement of high requirements, at the outside, also want to pay attention to creative, novelty, so on this basis design one paragraph can meet the requirement of people, and creative clock device is very be necessary, SMD LED rotating screen a digital clock in May time on the basis of, and can satisfy people for things to creative demand.
This design USES LED by a row rotating screen patch LED lamp, make its water use of visual remain high rotation speed, high resolution, forming the effect of dot matrix display character, screen, can design of Chinese characters, even, and design looks and the suspended in the air transparency, very dazzle eye. Plus single-chip microcomputer control, but also become a unique piece of digital clock. When the human eye, light observed scenery in brain nerve, should be introduced into signals through a short time, light effect ends, the visual image is not immediately disappear, the residue after the visual says "as", visual this phenomenon is called "visual temporarily leave". The concrete application is film and screened. Reason is caused by the response speed of the optic nerve, its duration is 24 points of a second. Is animation, movies and other visual media according to the formation and transmission.

keywords :LED water lamp 、Photogate、Infrared receiving、Power management 、MCU


目录
前 言 1
1 总体方案设计 3
1.1系统框图 3
1.2系统功能介绍 4
1.3计时控制方案 4
1.4显示控制方案 4
1.5遥控控制方案 4
1.6软件总体设计方案 5
2 硬件设计 6
2.1 STC89C52RC单片机的介绍 6
2.2 STC89C52RC单片机引脚说明 7
2.3单片机硬件资源分配 8
2.4 STC89C52RC单片机的附属电路 9
2.4.1 振荡电路 9
2.4.2 复位电路 10
2.5同步设计 11
2.6红外遥控设计 11
2.6.1 红外接收部分 12
2.6.2 红外发射部分 13
2.7 蜂鸣器发声电路 14
2.8 LED流水灯旋转屏的分辨率 15
3 软件设计 16
3.1 系统主程序设计 16
3.2 红外遥控程序设计 17
4 系统调试 20
4.1 硬件调试 20
4.1.1 供电问题 20
4.1.2 平衡问题 20
4.2 在keil中的调试 21
5 结 论 24
致 谢 25