外文翻譯--大屏幕顯示系統(tǒng)的研究

1、<p>　　2400漢字，1600英文單詞，9600英文字符</p><p>　　Large screen display system's research</p><p>　　Led development</p><p>　　Along with computer technology's high speed development

2、, LED (Light Emitting Diode) the screen display system takes after the television, the broadcast, the newspaper, the magazine “the fifth big media” marches into the social life fast each aspect. Its collection microelect

3、ronic technology, the computer technology, the information processing and management technology in a body, may the information through the writing, the design, the animation and the video frequency four forms demonstrate

4、s. Wi</p><p>　　LED display monitor's classification</p><p>　　LED display monitor's classified LED display monitor is many kinds of technical synthesis application product, involves photo

5、electronics, the semiconductor device, the digit electronic circuit, the large scale integrated circuit, the monolithic integrated circuit and the microcomputer and so on each aspect, both has the hardware and to have so

6、ftware [4]. After the LED display monitor is takes the broadcast, the television, the newspaper, the magazine another new communication media. At present t</p><p>　　LED display monitor's trend of develop

7、ment</p><p>　　At present the LED display monitor's demonstration to the high luminance, a higher weather fastness, the higher illumination uniformity, a higher reliability, the panchromatic, the multimed

8、ia directions develops, system's movement, the operation and the maintenance also to the integration, the network, the intellectualized direction develop. The 21st century's display technology will be the panel d

9、isplay time, the LED display monitor takes one of panel display leadership products to have a bigge</p><p>　　1. since the high luminance, entire color blue color and the green superelevation brightness LED p

10、roduct has appeared, the cost reduces fast year by year, causes the LED entire colored display monitor product cost to drop, the promoted speed speeds up. At the same time, along with control technology's development

11、 and the LED display monitor body stable enhancement, the entire colored LED display monitor's brightness, the color, white balanced achieves the quite ideal effect, definitely may satis</p><p>　　2. afte

12、r standardization, standardized material, technology mature and market price basic balanced, the LED display monitor's standardization and the standardization will become a tendency which the LED display monitor deve

13、lops. In recent years industry in development, after several price recedes the adjustment achieves basically balanced, the product quality, the system reliable and so on will become the main competition factor, this had

14、the high request to the LED display monitor's standardiza</p><p>　　3. the product mix diversification along with the informationization society's formation, the information field is even more widespr

15、ead, the LED display monitor's application prospect is broader. It is estimated that large-scale or the ultra-large LED display monitor will have the change for the mainstream product's aspect, will suit can have

16、 in the service industry characteristic and the specialized request small LED display monitor enhances greatly, will be richer face the information service </p><p>　　Involves the mentality and the principle

17、of work</p><p>　　This system basis classics' circuit design mentality, uses the design method from bottom to top, from the display panel to the actuation board, arrives at the control panel again, carrie

18、s on the hardware programming, after debugging successfully, receives a telegram the source plate, finally completes the data transmission board and PC machine connects, carries on the PC software programming, completes

19、the demonstration data the production, the extraction, processing, the transmission as well as</p><p>　　Principle of work this article designs the large-scale LED display monitor becomes by the double primar

20、y color lattice LED combination, uses the line-by-line scanning the display mode to demonstrate red, green, the yellow three kind of color random lattice information. The display module uses the line-by-line scanning dem

21、onstration the way, its control system take monolithic integrated circuit AT89C52 as a core, uses 62256 memories to take the data-carrier storage, actuates 8*8 using latch 74HC3</p><p>　　大屏幕顯示系統(tǒng)的研究</p>

22、<p><b>　　LED的發(fā)展</b></p><p>　　隨著計算機技術(shù)的高速發(fā)展，LED屏幕顯示系統(tǒng)后，電視，廣播，報紙，雜志的“第五大媒體”步入社會生活各方面的快速。它集微電子技術(shù)，計算機技術(shù)，信息處理和管理技術(shù)于一體，將信息通過寫作，設(shè)計，動畫和視頻四種形式顯示。與媒體等電視墻，磁性葉片的比較，大屏幕顯示系統(tǒng)的設(shè)計是藝術(shù)，色彩鮮明；設(shè)計，色彩變化豐富，快；低功耗，壽命

23、長，使用成本低，工作穩(wěn)定可靠等特點。它表明圖文視角大，明顯的距離遠(yuǎn)，因此已廣泛應(yīng)用于大型廣場，商業(yè)廣告，體育場館，信息傳播，新聞發(fā)布，證券交易；這也適用于工業(yè)控制的工業(yè)和再分配制度，有利于各種參數(shù)，報警點，清楚顯示技術(shù)工藝完善，可以滿足不同環(huán)境的需要。LED顯示屏是一種利用計算機和復(fù)雜的數(shù)字信號處理電子屏幕廣告宣傳。它的屏體部分由微處理器（主要是單片集成電路）和驅(qū)動電路控制運動，表現(xiàn)出的圖像或文字通過電腦版軟件編輯。因為LED顯示屏這種

24、新一代信息圖形顯示設(shè)備的展示設(shè)計是穩(wěn)定，功耗低，壽命長等特點，而且它綜合各種信息的圖形顯示設(shè)備的優(yōu)點，并克服了自己的不足，因為特別顯示屏可顯示的不同的內(nèi)容，顯示模式豐富。因此，在公共領(lǐng)域，它具有強烈的廣告宣傳和信息傳播效果，已在固體表現(xiàn)出日益</p><p><b>　　LED顯示屏的分類</b></p><p>　　LED顯示屏是多種技術(shù)綜合應(yīng)用的產(chǎn)品，涉及光電子學(xué)

25、、半導(dǎo)體器件、數(shù)字電子電路、大規(guī)模集成電路、單片機及微機等各個方面，既有硬件又有軟件[4]。LED顯示屏是作為廣播、電視、報紙、雜志之后的又一新傳播媒體。目前LED顯示屏根據(jù)使用場所不同，可以分為室外屏和室內(nèi)屏兩種，其主要區(qū)別是發(fā)光管的發(fā)光亮度不同。而根據(jù)所顯示的內(nèi)容不同也可以分為圖像屏和文字屏兩種，圖像屏可以顯示圖像以及多媒體，而文字屏則主要顯示文字或簡單的固定圖像。顯示圖像的多媒體室外屏是投資巨大(高達(dá)數(shù)百萬)的大型高檔設(shè)備，主要應(yīng)

26、用在大型公共場所、形象工程和一些重要場所。LED顯示屏的應(yīng)用涉及到社會經(jīng)濟的許多領(lǐng)域，已經(jīng)遍及交通、證券、電信、廣告、宣傳等各個方面。</p><p>　　LED顯示屏的發(fā)展趨勢</p><p>　　目前LED顯示屏的顯示向更高亮度、更高耐氣候性、更高的發(fā)光均勻性、更高的可靠性、全色化、多媒體方向發(fā)展，系統(tǒng)的運行、操作與維護也向集成化、網(wǎng)絡(luò)化、智能化方向發(fā)展。二十一世紀(jì)的顯示技術(shù)將是平板顯

27、示的時代，LED顯示屏作為平板顯示的主導(dǎo)產(chǎn)品之一將有更大的發(fā)展。</p><p>　　1．高亮度、全彩化藍(lán)色及綠色超高亮度LED產(chǎn)品出現(xiàn)以來，成本逐年快速降低，使LED全彩色顯示屏產(chǎn)品成本下降，推廣速度加快。同時，隨著控制技術(shù)的發(fā)展和LED顯示屏體穩(wěn)定性的提高，全彩色LED顯示屏的亮度、色彩、白平衡均達(dá)到比較理想的效果，完全可以滿足戶外全天候的環(huán)境條件要求，而且圖像更清晰、更細(xì)膩、更亮麗。</p>

28、<p>　　2．標(biāo)準(zhǔn)化、規(guī)范化材料、技術(shù)的成熟及市場價格基本均衡之后，LED顯示屏的標(biāo)準(zhǔn)化和規(guī)范化將成為LED顯示屏發(fā)展的一個趨勢。近幾年業(yè)內(nèi)的發(fā)展中，幾番價格回落調(diào)整達(dá)到基本均衡后，產(chǎn)品質(zhì)量、系統(tǒng)的可靠性等將成為主要的競爭因素，這就對LED顯示屏的標(biāo)準(zhǔn)化和規(guī)范化有了較高的要求。行業(yè)規(guī)范和標(biāo)準(zhǔn)體系的形成，IS09000系列標(biāo)準(zhǔn)的應(yīng)用，使LED顯示屏行業(yè)的發(fā)展趨于有序。</p><p>　　3．產(chǎn)品結(jié)構(gòu)多

29、樣化隨著信息化社會的形成，信息領(lǐng)域愈加廣泛，LED顯示屏的應(yīng)用前景更為廣闊。預(yù)計大型或超大型LED顯示屏為主流產(chǎn)品的局面將會發(fā)生改變，適合于服務(wù)行業(yè)特點和專業(yè)性要求的小型LED顯示屏?xí)休^大提高，面向信息服務(wù)領(lǐng)域的LED顯示屏產(chǎn)品門類和品種體系將更加豐富，部分潛在市場需求和應(yīng)用領(lǐng)域?qū)兴黄?，如公共交通、停車場、餐飲、醫(yī)院等綜合服務(wù)方面的信息顯示屏需求量將有更大的提高。</p><p>　　涉及思路及工作原理

30、</p><p>　　本系統(tǒng)根據(jù)經(jīng)典的電路設(shè)計思路，采用自下而上的設(shè)計方法，從顯示板到驅(qū)動板，再到控制板，進行硬件編程，調(diào)試成功后接電源板，最后完成數(shù)據(jù)傳輸板與PC機相連接，進行PC軟件編程，完成顯示數(shù)據(jù)的生成、提取、處理、傳輸以及顯示效果的實時控制。每個模塊采用8個LED點陣以行掃描形式點亮各行的紅、綠、紅綠燈，顯示文字和圖像。LED點陣的驅(qū)動、譯碼、鎖存等由控制板的數(shù)字電路負(fù)責(zé)。其數(shù)據(jù)由單片機從存儲器中讀取，

31、同時單片機采用中斷方式，通過RS-232數(shù)據(jù)線與PC機進行雙向通信，從PC機獲取命令或數(shù)據(jù)，并按命令執(zhí)行動作或者存儲數(shù)據(jù)。而PC機不但與多個單片機進行多機串口通信，還要負(fù)責(zé)文字錄入和排版，生成點陣數(shù)據(jù)或者命令字，實現(xiàn)人機交互功能。</p><p>　　工作原理本文設(shè)計的大型LED顯示屏由雙基色點陣LED組合而成，采用逐行掃描的顯示方式顯示紅、綠、黃三種顏色的任意點陣信息。顯示模塊采用逐行掃描顯示的方式，其控制系統(tǒng)

32、以單片機AT89C52為核心，采用62256存儲器作為數(shù)據(jù)存儲器，利用鎖存器74HC377和8組線驅(qū)動器2083A驅(qū)動8*8的LED顯示模塊，同時開放串口中斷與上位PC機進行多機通信。通過對單片機編程實現(xiàn)顯示屏的多種動畫模式顯示：向左滾屏，向右滾屏，向上滾屏，向下滾屏，向左上滾屏，向右上滾屏，向左拉幕，向右拉幕，向上拉幕，向下拉幕，向右移，從左向右、依次點亮，從中間到兩邊、依次點亮。動畫速度可調(diào)：分為100檔，最低為1速，最高為100速