【正文】 的，也就是將操作鍵盤(pán)固定在保險(xiǎn)箱的面板上。 尤其是微控制器的智能電子密碼鎖，不僅具有電子密碼鎖的功能，還可引入智能化管理功能，從而使密碼鎖具有更高的安全性和可靠性 ，受 到了廣大用戶的信賴。s intelligent electronic lock technology is constantly updated, in particular the application of SCM in the field are constantly toward high precision and advanced technology development, whether functional and stability are more prehensive. Radio remote control technology will be bined with cryptographic techniques, to ensure that the existing locks in the system performance based on the development of new remote lock system. Enables users to any location within a certain range can be on the safe open, password security can be improved to overe the fixed keyboard lock deficiencies. The system is based on the single chip on the development of remote control locks, the hardware design from the remote transmitter and remote control receiver of two subsystems, in order to receive some of the major AT89C52 microcontroller as the core. Use PT2262, PT2272 chip encoding and decoding the signals. In addition, the bination of portability and readability of the C language program to achieve lock, alarm and display. At the same time, the use of EEPROM memory AT24C02 powerdown mode makes the system still be able to save the password information. The system is small, low cost, reliable, easy to use and so on. Keywords: remote control technology passwordlock code decode single chip microputer 4 目 錄 1 緒論 ......................................................................................................................................5 選題的依據(jù)及意義 .......................................................................................................5 國(guó)內(nèi)外發(fā)展現(xiàn)狀 ...........................................................................................................5 2 總體方案 ...............................................................................................................................7 技術(shù)要求及主要特色 ....................................................................................................7 系統(tǒng)組成框圖及工作原理 .............................................................................................7 3 硬件電路的設(shè)計(jì) ....................................................................................................................9 單片機(jī)的選擇 ..............................................................................................................9 時(shí)鐘電路 .......................................................................................................... 10 復(fù)位電路 .......................................................................................................... 11 遙控發(fā)射模塊 ............................................................................................................ 13 遙控接收模塊 ............................................................................................................. 17 密碼存儲(chǔ)模塊 ............................................................................................................ 21 鍵盤(pán)及顯示模塊 ......................................................................................................... 23 報(bào)警電路 ................................................................................................................... 27 開(kāi)鎖電路 ................................................................................................................... 28 4 軟件設(shè)計(jì) ............................................................................................................................. 31 主程序設(shè)計(jì) ................................................................................................................ 31 各模塊的程序設(shè)計(jì) ...................................................................................................... 32 無(wú)線遙控模塊程序設(shè)計(jì) ..................................................................................... 32 鍵盤(pán)輸入模塊程序設(shè)計(jì) .................................................................................... 33 密碼比對(duì)模塊程序設(shè)計(jì) .................................................................................... 34 AT24C02芯片的讀寫(xiě) ......................................................................................... 35 5 調(diào)試 .................................................................................................................................... 36 硬件的調(diào)試 ................................................................................................................ 36 PCB 板的設(shè)計(jì)制作 ........................................................................................... 36 遙控發(fā)射模塊的調(diào)試 ........................................................................................ 37 遙控接收模塊的調(diào)試 ........................................................................................ 37 密碼存儲(chǔ)模塊的調(diào)試 ........................................................................................ 38 鍵盤(pán)及顯示模塊的調(diào)試 .................................................................................... 38 報(bào)警電路的調(diào)試 ............................................................................................... 39 開(kāi)鎖電路的調(diào)試 ............................................................................................... 39 軟硬的聯(lián)調(diào) ................................................................................................................ 39 6 總 結(jié) .................................................................................................................................. 40 參考文獻(xiàn) ................................................................................................................................ 43 附錄 A 原理總圖 ................................................................................................................... 44 附錄 B PCB板圖 ............................................................................................