基于AT89S52的無線自動車庫門

電子機電論文編號:JD904     字數:9138,頁數:32

目  錄
1 引言 1
2 設計任務 2
2.1 設計并制作一個無線自動門電路 2
2.2 基本模塊 2
3 系統的總體設計 3
3.1 單片機 3
3.1.1 單片機的說明及應用 3
3.1.2 單片機的結構特點 3
3.1.3 單片機的引腳配置 4
3.2 4×4行列式掃描鍵盤 7
3.2.1 鍵盤工作原理 7
3.2.2 鍵盤工作方式 8
3.3 PT2262/PT2272編碼解碼芯片 9
3.3.1 PT2262/PT2272編碼解碼芯片原理 9
3.3.2 PT2262特點及應用 11
4 系統軟硬件設計 12
4.1 主要電路圖 12
4.1.1 單片機最小系統電路 12
4.1.2 鍵盤電路 12
4.1.3 數碼管顯示電路 12
4.1.4 無線發射及編解碼電路 13
4.1.5 蜂鳴器及繼電器電路（見圖4-5） 14
4.1.6 系統硬件總圖（見圖4-6） 15
4.2 軟件設計流程圖（見圖4-7） 15
5 總結 17
參考文獻 18
謝  辭 28

摘要：車庫門全自動門控裝置，其特征在于設有置于車庫內和車庫外的主控制器以及安裝在車輛內的密碼標識器，主控制器由單片機、315M無線接收器、解碼器、鍵盤、數碼管和紅外對管組成，密碼標識器由無線發射器和編碼器。PT2262與PT2272地址和數據狀態一模一樣，PT2262電源端平時斷開，若快到了車庫門則按下按鈕通電，編碼器PT2262將地址和數據通過無線發射模塊發射，同時無線接收器的輸出端接解碼器的輸入端，解碼器的輸出端VT接單片機的P3.3，若數據完全正確則車庫內的單片機啟動電機開啟車庫門，同時紅外對管感應次數計數，出車庫門后門自動下降，也可以通過按鈕屏蔽紅外對管，實現手動放下車庫門。之后取車時通過輸入密碼控制電機啟動開門。
 關鍵詞：電子密碼鎖；單片機；無線收發模塊；PT2262/PT2272編解碼芯片；紅外對管；

The design of wireless auto garage door based on AT89S52
Abstract: The garage door full-automatic door control equip, its characteristic lie in establish to place at the garage inside with flank of of lord controller and install in the vehicle of password marking machine, lord controller from list slice machine, 315 M wireless receive a machine and shoot machine, coder and decoding machine, keyboard, figures tube with red outside to tube constitute, password marking machine from wireless receive a machine and shoot machine, coder and decoding machine.PT2262 and PT2272 address and data appearance look exactly alike, the PT2262 power supply carry peacetime break to open, if shall arrive soon a garage door to then press button to switch on electricity, the coder PT2262 pass address and data a wireless blast-off mold piece shoot, in the meantime wireless receive a machine of output carry to connect decoding machine of importation carry, decoding machine of output carry VT to connect list slice the P3.3 of the machine, if data complete exactitude inside garage of list slice machine start the electrical engineering open a garage door, red in the meantime outside to tube respond number of times to count, garage door back door auto descend, can also pass button to shield red outside to tube, realization move to let go of a garage door. Pass an importation a password control electrical engineering start while taking a car after
Keyword: Electronics combination lock; List slice machine; The 315 M wireless receive and dispatch a mold piece;PT2262/PT2272 plait decoding chip; Red outside to the tube;