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紅外線遙控系統(tǒng)_外文翻譯.doc

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紅外線遙控系統(tǒng)_外文翻譯,摘要目前在世界范圍內(nèi)被廣泛使用的一種無線連接技術(shù)是紅外線數(shù)據(jù)通信技術(shù),其得到許多的軟硬件平臺支持。紅外收發(fā)器產(chǎn)品的特點有成本低,尺寸小,數(shù)據(jù)傳輸速度快,點對點ssl安全傳輸,防電磁干擾等,能夠?qū)崿F(xiàn)不同產(chǎn)品間快速、方便、安全地進(jìn)行信息交換和傳送,在近距離無線傳輸方面有著相當(dāng)明顯的優(yōu)勢。紅外遙控收發(fā)...
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此文檔由會員 莎士比亞 發(fā)布

紅外線遙控系統(tǒng)_外文翻譯

摘要

目前在世界范圍內(nèi)被廣泛使用的一種無線連接技術(shù)是紅外線數(shù)據(jù)通信技術(shù),其得到許多的軟硬件平臺支持。紅外收發(fā)器產(chǎn)品的特點有成本低,尺寸小,數(shù)據(jù)傳輸速度快,點對點SSL安全傳輸,防電磁干擾等,能夠?qū)崿F(xiàn)不同產(chǎn)品間快速、方便、安全地進(jìn)行信息交換和傳送,在近距離無線傳輸方面有著相當(dāng)明顯的優(yōu)勢。紅外遙控收發(fā)系統(tǒng)具有很強(qiáng)的實用意義,目前紅外收發(fā)器產(chǎn)品在便攜式產(chǎn)品中有著很大的應(yīng)用潛力。隨著紅外數(shù)據(jù)傳輸技術(shù)更加成熟、成本下降,紅外收發(fā)器在短距離通訊領(lǐng)域必將得到更廣泛的應(yīng)用。
   
設(shè)計本系統(tǒng)的目的是,用紅外線作為傳輸載體來攜帶用戶的操作信息并由接收電路接受并解調(diào)出原始操作信號,主要使用編碼芯片和解碼芯片對信號進(jìn)行調(diào)制和解調(diào)。其中編碼芯片使用的是PT2262,解碼芯片使用是PT2272,他們都由臺灣生產(chǎn)。其主要工作機(jī)理是:我們使用編碼鍵盤為PT2262輸入信息,輸入的信息被PT2262編碼并加載到38KHZ的載波上,并調(diào)制紅外發(fā)射二極管,輻射到空間。然后,接收系統(tǒng)接收到發(fā)射的信號并解調(diào)出原始信息。原始信號由PT2272進(jìn)行解碼,以此驅(qū)動對應(yīng)的電路完成用戶的操作請求。

關(guān)鍵字:紅外線;編碼;譯碼;LM386;紅外收發(fā)器。


Abstract

Red outside data correspondence the technique be currently within the scope of world drive extensive usage of a kind of wireless conjunction technique, drive numerous hardware and software platform support. Red outside the transceiver product have cost low, small scaled turn, the baud rate be quick, point to point SSL, be free from electromagnetism thousand Raos etc. characteristics, can realization information at dissimilarity of the product fast, convenience, safely exchange and transmission, at short distance wireless deliver aspect to own very obvious of advantage .Along with red outside the data deliver a technique more and more mature, the cost descend, red outside the transceiver necessarily will get at the short distance communication realm more extensive of application.
  
The purpose that design this system is transmit customer’s operation information with infrared rays for transmit media, then demodulate original signal with receive circuit. It use coding chip to modulate signal and use decoding chip to demodulate signal. The coding chip is PT2262 and decoding chip is PT2272. Both chips are made in Taiwan. Main work principle is that we provide to input the information for the PT2262 with coding keyboard. The input information was coded by PT2262 and loading to high frequent load wave whose frequent is 38 kHz, then modulate infrared transmit dioxide and radiate space outside when it attian enough power. The receive circuit receive the signal and demodulate original information. The original signal was decoded by PT2272, so as to drive some circuit to accomplish customer’s operation demand.

Keywords: Infrared dray;Code;Decoding;LM386;Red outside transceiver