红外遥控电源开关

论文编号:JD791  论文字数:14566,页数:25

 摘  要

红外遥控技术现在广泛应用在现实生活中，由于红外无线解决了有线连接的许多不便,因此大大方便了人们的生活。随着电子技术的飞速发展，各种体积小、功能强的便携式产品不断涌现。红外遥控技术在生活中随处可见，例如通过红外遥控来控制小型玩具汽车，红外测量体温、红外遥控DVD或VCD等。本次设计实现了红外遥控电源开关的设计，它包括六个部分：红外发射、红外接收、继电器、光偶合、蜂鸣器和数码显示管。它工作的主要过程是这样的，通过通用遥控器发射信号，接收部分通过红外接收头接收信号，用AT89C51单片机来控制电灯的开关和定时以及数码管的显示。功能实现以后，可以在数码管上正确的显示所选灯的开关和定时。并且可以通过红外遥控调整时间或切换显示。
    该系统实用、功能灵活多样,不但具有电源开关功能并且对被遥控对象的状态进行远距离调整以及控制,可以广泛应用于家居室内家电。

关键词：红外发射；红外接收；红外遥控；单片机；数码显示；蜂鸣器；光偶合；继电器；

Abstract
Infrared remote control is one kind Transmit which is widely used in daily life. The infrared wireless technology has solved a lot of inconvenience in the wired connection, so it provides a lot of convenience in our lives. With the rapid development of electronic technology, various kinds of small portable products with strong function emerge constantly. For example, it could be used for controlling the bauble of small-scale automobile, examining body temperature, infrared remote controlling DVD or VCD and etc. This design is to implement a power supply switch with infrared remote controlling. It includes five parts: Infrared emission, infrared receiving, buzzer,ray coincidence and number showing. The essential principles of this system is that use the currency remote device to transmit infrared ray signal,   and  emitting the signal to the infrared receiveing diode by the diode of infrared emission. Then utilizing CM8870 to decode, and controlling the switch and time of the electric light with AT89C51 one-chip computer. After the function is realized, it can display time on the number showing correctly, and can adjust time through the infrared controlling.
This system is practical and has many kinds of flexible functions. It not only has the function of switch of the power supply, but also can control and adjust the state of the controlled objects in the long distance, and can be widely used in various kinds of  switch of the power supply in indoor wiring.
Key words： Infrared emission；Infrared receive；Code；Decode；Infrared remote control；Dual Tone Multi-Frequency；One-chip computer；The number showing；power supply; buzzer; ray coincidence;

目    录
引言  ……………………………………………………………………1
1  硬件电路的设计及基本工作原理 …………………………………1
1.1 红外发射原理   …………………………………………………………1
1.1.1红外遥控系统   …………………………………………………………1
1.2  红外接收原理………………………………………………..……………2
1.2.1 红外接收模块………………………………………………………………2
1.2.1.1红外接收头的介绍…………………………………………………………2
1.2.1.2红外接收头的外观和内部框图…….……………………………………3
1.2.2 红外接收电路的应用…………………………………………………………3
1.3红外接收电路原理图…....... ………………………………………………4
1.3.1红外遥控电源开关的特点……………………………………………………4
1.3.2  红外遥控电源开关的结构原理……………………………………………5
1.3.3继电器部分……………………………………………………………5
1.3.4蜂鸣器部分……………………………………………………………………6
1.3.5光偶合部分……………………………………………………………………6
1.3.6电源部分……………………………………………………………6
1.4数码管的工作原理………………………………………………………………6
1.4.1  数码管的特征………………………………………………………………6
1.4.2数码管的构成…………………………………………………………6
2  软件设计以及相关芯片的介绍 ………………………………………7
2.1  单片机模块 …………………………………………………………………7
2.1.1  MCS—51的芯片引脚………………………………………………………7
2.1.2 单片机的复位…………………………………………………………11
2.1.3 单片机的中断…………………………………………………………………11
2.1.4 允许中断窖存器IE…………………………………………………………12
2.2 利用单片机进行红外线编、解码遥控…………………………………………12
3  电路板设计步骤及电路板的制作……………………………… 17
3.1电路板设计步骤…………………………………………………………………17
3.2 PCB板的制作…………………………………………………………………17
4  电路的调试以及软件编程…………………………………………19
4.1 红外遥控硬件电路的调试……………………………………………………19 
5  结论 ………………………………………………………………20
谢辞 ……………………………………………………………………21
参考文献 ………………………………………………………………22