密碼多路無線遙控器

頁數(shù)：25 字?jǐn)?shù)：11256
包括任務(wù)書


目 錄
摘 要 1
第1章 引 言 2
第2章 方案比較與論證 4
2.1系統(tǒng)方案選擇 4
2.2發(fā)射電路方案比較 5
2.3接收電路方案比較 5
2.4編解碼方案比較 6
第3章 發(fā)射電路與接收電路的設(shè)計(jì) 9
3.1系統(tǒng)概括 9
3.2 VD5026/27的編譯碼原理 9
3.2.1 編碼器VD5026 9
3.2.2 譯碼器VD5027 10
3.3 發(fā)射電路說明 11
3.4接收電路說明 12
第4章 電路的實(shí)際制作與調(diào)試 15
4.1 電路制作 15
4.1.1發(fā)射電路的制作 15
4.1.2接收電路的制作 15
4.2 電路調(diào)試 15
4.2.1發(fā)射電路的調(diào)試 15
4.2.2接收電路的調(diào)試 17
第5章 結(jié)束語 18
參考文獻(xiàn) 19



摘要：本論文介紹了一個(gè)比較容易實(shí)現(xiàn)，抗干擾能力較強(qiáng)的無線多路密碼遙控系統(tǒng)，該系統(tǒng)由于采用了編碼解碼芯片，使其傳輸?shù)男畔⒉灰资艿酵饨绲母蓴_，可以對遠(yuǎn)處四路電器進(jìn)行遙控或報(bào)警，使用調(diào)頻方式，頻率選在50MHZ附近，編碼組數(shù)大于10萬組。該系統(tǒng)采用集成電路設(shè)計(jì)的收發(fā)系統(tǒng)，發(fā)射功率大于2mW,接收靈敏度優(yōu)于50uV,發(fā)收距離大于50米。編解碼芯片使用的是VD5026和VD5027，接收端接收電路使用TA7792P FM接收專用芯片。
關(guān)鍵詞：遙控 編碼 解碼 調(diào)頻

The coded wireless multichannel remote control system

Abstract：This thesis has introduced quite is easy to realize, the wireless password remote control system of multichannel of external interference with stronger ability , because system this has used the code decode chip, make information that transmit is difficult to be interfering with external, can carry on the remote control to the distant place four groups electric appliances or report to the police, use the frequency modulation way,frequency is selected near 50MHZ,the code group number is bigger than 100,000 groups. This system uses the receiving and dispatching system which the integrated circuit designs, the emissive power is bigger than 2mW, The receiving sensitivity surpasses 50uV, sends and receives the distance to be bigger than 50 meters. Arranges the decoding chip use is VD5026 and VD5027, The receiving end accepting circuit uses TA7792P FM to receive the special-purpose chip.

Keyword：remote control code decodes frequency modulation