紅外遙控電源開關

電子機電論文編號:JD791  論文字數:14566,頁數:25

目    錄
引言  ……………………………………………………………………1
1  硬件電路的設計及基本工作原理 …………………………………1
1.1 紅外發射原理   …………………………………………………………1
1.1.1紅外遙控系統   …………………………………………………………1
1.2  紅外接收原理………………………………………………..……………2
1.2.1 紅外接收模塊………………………………………………………………2
1.2.1.1紅外接收頭的介紹…………………………………………………………2
1.2.1.2紅外接收頭的外觀和內部框圖…….……………………………………3
1.2.2 紅外接收電路的應用…………………………………………………………3
1.3紅外接收電路原理圖…....... ………………………………………………4
1.3.1紅外遙控電源開關的特點……………………………………………………4
1.3.2  紅外遙控電源開關的結構原理……………………………………………5
1.3.3繼電器部分……………………………………………………………5
1.3.4蜂鳴器部分……………………………………………………………………6
1.3.5光偶合部分……………………………………………………………………6
1.3.6電源部分……………………………………………………………6
1.4數碼管的工作原理………………………………………………………………6
1.4.1  數碼管的特征………………………………………………………………6
1.4.2數碼管的構成…………………………………………………………6
2  軟件設計以及相關芯片的介紹 ………………………………………7
2.1  單片機模塊 …………………………………………………………………7
2.1.1  MCS—51的芯片引腳………………………………………………………7
2.1.2 單片機的復位…………………………………………………………11
2.1.3 單片機的中斷…………………………………………………………………11
2.1.4 允許中斷窖存器IE…………………………………………………………12
2.2 利用單片機進行紅外線編、解碼遙控…………………………………………12
3  電路板設計步驟及電路板的制作……………………………… 17
3.1電路板設計步驟…………………………………………………………………17
3.2 PCB板的制作…………………………………………………………………17
4  電路的調試以及軟件編程…………………………………………19
4.1 紅外遙控硬件電路的調試……………………………………………………19 
5  結論 ………………………………………………………………20
謝辭 ……………………………………………………………………21
參考文獻 ………………………………………………………………22

 摘  要

紅外遙控技術現在廣泛應用在現實生活中，由于紅外無線解決了有線連接的許多不便,因此大大方便了人們的生活。隨著電子技術的飛速發展，各種體積小、功能強的便攜式產品不斷涌現。紅外遙控技術在生活中隨處可見，例如通過紅外遙控來控制小型玩具汽車，紅外測量體溫、紅外遙控DVD或VCD等。本次設計實現了紅外遙控電源開關的設計，它包括六個部分：紅外發射、紅外接收、繼電器、光偶合、蜂鳴器和數碼顯示管。它工作的主要過程是這樣的，通過通用遙控器發射信號，接收部分通過紅外接收頭接收信號，用AT89C51單片機來控制電燈的開關和定時以及數碼管的顯示。功能實現以后，可以在數碼管上正確的顯示所選燈的開關和定時。并且可以通過紅外遙控調整時間或切換顯示。
    該系統實用、功能靈活多樣,不但具有電源開關功能并且對被遙控對象的狀態進行遠距離調整以及控制,可以廣泛應用于家居室內家電。

關鍵詞：紅外發射；紅外接收；紅外遙控；單片機；數碼顯示；蜂鳴器；光偶合；繼電器；

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;