通信工程文献翻译——摘要

红外数据通信技术是目前在世界范围内推动广泛使用的一种无线连接技术,推动许多硬件和软件平台支持。红外收发器产品成本低,小型,传输速率快,点对点的安全传输,没有电磁干扰,可以实现信息在不同产品间的快速、方便、安全的交流与传播,在短距离无线传递方面自己的优势非常明显。连同红外数据交付技术越来越成熟,成本下降,红外收发器一定会在短距离通信领域更广泛的应用。

这个系统的设计目的是在传输介质上红外线利用传递客户的操作信息,然后经解调电路得到原始信号。它使用编码芯片调制信号,使用解码芯片解调信号。编码芯片PT2262和PT2272解码芯片，芯片都是台湾制造。主要工作原理是：利用编码键盘可以为PT2262提供的输入信息，PT2262对输入的信息进行编码并加载到38KHZ的载波上并调制红外发射二极管并辐射到空间，然后再由接收系统接收到发射的信号并解调出原始信息，由PT2272对原信号进行解码以驱动相应的电路完成用户的操作要求。

关键字：红外线；编码；解码；LM386；红外收发器。

1 绪论

1.1 课题研究的背景及意义

红外数据通信技术是世界上广泛使用的无线连接技术,被众多的硬件和软件平台支持。是一种数据通过电脉冲和红外无线数据收发器之间的光脉冲开关技术。

红外收发器产品低成本、小型化,传输速度快,点对点传输安全、不受电磁干扰等特点,可以实现在不同的产品之间,快速、方便、安全的交流与传播,在短距离无线传输有一个非常明显的优势。

红外收发器产品在便携式产品中作用很大。目前,世界上1.5亿的设备使用红外技术在电子产品和工业设备。医疗设备等领域广泛使用。例如,95%的笔记本电脑上安装红外收发器接口的大多数手机也是红外收发器接口的配置。随着交换的数据量变大,红外数据通讯将使手机数据传输更加方便。与红外数据传输技术的成熟、完美、低成本、红外收发器在短距离通信将更加广泛的应用。

本章首先描述了红外收发器集成电路设计问题的背景和意义。然后简单介绍了红外数据通信技术的特性和应用,以及红外收发器产品特点、国内外现状及发展趋势,最后根据红外遥控收发系统实际应用建立任务的设计取向。

1.2 红外遥控收发系统简介

红外遥控系统分为单通道和多通道远程控制。只有一个命令信号传输通道,......

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, not by the electromagnetic interference 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 attain 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；Code；Decoding；LM386；Redout-side transceiver 论文

1 Introduction 1.1 research the background and significance Infrared Data Communication Technology is the world wide use of a wireless connection technology, by the many hardware and software......