短距离无线传输系统设计

短距离无线传输系统设计

[摘要]在一般意义上，只要通信收发双方通过无线电波传输信息，并且传输距离限制在较短的范围内，通常是几十米以内，就可以称为短距离无线通信。PT2262是红外遥控编码器，PT2272是其接收解码器,两者常常配对使用，现已用于汽车门控、遥控门锁、门禁管理、数字通信等领域，也可用于传送数字信息。从PT2262、PT2272发射和接收的信号特征入手，利用AT89C51单片机控制，实现短距离无线传输，从而使其应用于数字通信、智能化控制等领域。

[关键词]无线通信；PT2262/PT2272；单片机

[中图分类号]TN702 [文献标志码] A

Automatic timing device design

[Abstract]In general sense, as long as the communication and information transmission via radio waves, and the transmission distance is limited in a shorter range, is usually dozens of meters, can be referred to as the short distance wireless communication. Infrared remote control encoder is PT2262 and PT2272 as its receiver decoder, both matching use, often has been used in car door control, remote control door lock, the entrance guard management, digital communications and other fields, can also be used to transmit digital information. From PT2262 and PT2272 of the transmit and receive signal characteristic, by using AT89C51 single chip microcomputer control, realizes the short distance wireless transmission, so that its applications in digital communications, intelligent control and other fields.

[Key words] short distance wireless communication；PT2262/PT2272；single-chip

目录

任务书 --------------------------------------------------------------------------------------------------------------- 1 摘要 ------------------------------------------------------------------------------------------------------------------ 2

1. 绪论 ----------------------------------------------------------------------------------------------------------- 3

1.1 概述------------------------------------------------------------------------------------------------------- 4

1.2 短距离无线传输发展前景--------------------------------------------------------------------------- 4

1.2.1 短距离无线通信技术的特征--------------------------------------------------------------- 4

1.2.2 主流的短距离无线通信技术--------------------------------------------------------------- 4

1..

2.3短距离无线通信的应用发展情况--------------------------------------------------------- 5

2. 方案设计 -------------------------------------------------------------------------------------------------------- 5

2.1 设计要求------------------------------------------------------------------------------------------------- 5

2.2 设计思路------------------------------------------------------------------------------------------------- 6

3.各模块设计------------------------------------------------------------------------------------------------------- 7

3.1电源模块 ------------------------------------------------------------------------------------------------- 7

3.2.1单片机特点及基本结构 ---------------------------------------------------------------------- 8

3.2.2 AT89s52单片机 -------------------------------------------------------------------------------- 9

3.3.1 编码解码芯片PT2262/PT2272芯片原理简介---------------------------------------- 10

3.3.2 PT2262/2272芯片的地址编码设定和修改--------------------------------------------- 11

3.4 74LS573模块 ------------------------------------------------------------------------------------------ 11

3.5 无线模块------------------------------------------------------------------------------------------------ 12

3.5.1 无线发射模块--------------------------------------------------------------------------------- 12

3.5.2 无线接收模块--------------------------------------------------------------------------------- 13 4．电路的装调和分析 ------------------------------------------------------------------------------------------ 14

4.1 装调的步骤和方法 ----------------------------------------------------------------------------------- 14

4.2 出现故障及处理 -------------------------------------------------------------------------------------- 14

5. 致谢-------------------------------------------------------------------------------------------------------------- 14 参考文献 ----------------------------------------------------------------------------------------------------------- 16 附录 ----------------------------------------------------------------------------------------------------------------- 17

1. 绪论