基于單片機(jī)的貼片LED旋轉(zhuǎn)屏數(shù)字鐘


內(nèi)容摘要
現(xiàn)在是一個(gè)知識(shí)爆炸的新時(shí)代。新產(chǎn)品、新技術(shù)層出不窮，電子技術(shù)的發(fā)展更是日新月異?？梢院敛豢鋸埖恼f，電子技術(shù)的應(yīng)用無處不在，電子技術(shù)正在不斷地改變我們的生活，改變著我們的世界。近年來，隨著電子產(chǎn)品的發(fā)展，人們對(duì)時(shí)鐘的要求越來越高，而在對(duì)要求高之余，又要講究有創(chuàng)意，新奇，所以在這個(gè)基礎(chǔ)上設(shè)計(jì)一款既能滿足人們的要求，又要有創(chuàng)意的時(shí)鐘裝置是很有必要的，貼片LED旋轉(zhuǎn)屏數(shù)字鐘在可以計(jì)時(shí)的基礎(chǔ)上，又能夠滿足人們對(duì)事物要有創(chuàng)意的需求。
本次設(shè)計(jì)運(yùn)用LED旋轉(zhuǎn)屏采用一排貼片LED流水燈，令其高速旋轉(zhuǎn)，利用視覺殘留效應(yīng)，形成高分辨率的點(diǎn)陣屏，能顯示字符，漢字，甚至圖案，而且圖案看起來還有懸浮于空中的透明效果，非常炫目。再加上單片機(jī)控制，又可成為一款獨(dú)特的數(shù)字鐘。人眼在觀察景物時(shí)，光信號(hào)傳入大腦神經(jīng)，需經(jīng)過一段短暫的時(shí)間，光的作用結(jié)束后，視覺形象并不立即消失，這種殘留的視覺稱“后像”，視覺的這一現(xiàn)象則被稱為“視覺暫留”。其具體應(yīng)用是電影的拍攝和放映。原因是由視神經(jīng)的反應(yīng)速度造成的，其時(shí)值是二十四分之一秒。是動(dòng)畫、電影等視覺媒體形成和傳播的根據(jù)。

關(guān)鍵字：LED流水燈、光電門、紅外接收、電源管理、單片機(jī)


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


目錄
前 言 1
1 總體方案設(shè)計(jì) 3
1.1系統(tǒng)框圖 3
1.2系統(tǒng)功能介紹 4
1.3計(jì)時(shí)控制方案 4
1.4顯示控制方案 4
1.5遙控控制方案 4
1.6軟件總體設(shè)計(jì)方案 5
2 硬件設(shè)計(jì) 6
2.1 STC89C52RC單片機(jī)的介紹 6
2.2 STC89C52RC單片機(jī)引腳說明 7
2.3單片機(jī)硬件資源分配 8
2.4 STC89C52RC單片機(jī)的附屬電路 9
2.4.1 振蕩電路 9
2.4.2 復(fù)位電路 10
2.5同步設(shè)計(jì) 11
2.6紅外遙控設(shè)計(jì) 11
2.6.1 紅外接收部分 12
2.6.2 紅外發(fā)射部分 13
2.7 蜂鳴器發(fā)聲電路 14
2.8 LED流水燈旋轉(zhuǎn)屏的分辨率 15
3 軟件設(shè)計(jì) 16
3.1 系統(tǒng)主程序設(shè)計(jì) 16
3.2 紅外遙控程序設(shè)計(jì) 17
4 系統(tǒng)調(diào)試 20
4.1 硬件調(diào)試 20
4.1.1 供電問題 20
4.1.2 平衡問題 20
4.2 在keil中的調(diào)試 21
5 結(jié) 論 24
致 謝 25