【正文】 hich people used to protect the valuables. At the moment, most of the locks are mechanical. The biggest drawback is that the lock can be easily opened by using simple tools. Thinking about the safety and convenient, many electronic bination lock appeared. Electronic bination lock receives more and more attention because of its high confidentiality, flexibility and high safety coefficient. Infrared remote control electronic bination lock is a carrier with infrared as the password, in the single chip puter to realize the remote control switch. It has characteristics such as easy to use, simple operation, low prices and brings great convenience for the life of people. Applicable to these special occasions which people should not close to, such as high radiation, high infected area etc. This design uses AT89S52 devices as a bination lock detection and control core, divided into host and slave machine. According to the serial munication principle between 51 SCM, the password is transported by the infrared which increased its privacy significantly. Adopting digital signal encoding and second modulation mode can not only control multichannel information, increase remote control function and improve the signal transmission of immunity but also low power consumption。 Remote control。 Singlechip microputer 目 錄 1 引言 ................................................................................................................................ 1 2 系統(tǒng)簡介 ........................................................................................................................ 3 設計方案簡介 ........................................................................................................ 3 芯片的選擇 ............................................................................................................ 3 單片機的選擇 ........................................................................................... 3 顯示器的選擇 ........................................................................................... 3 鍵盤的選擇 ................................................................................................ 4 其他器件的選擇 ....................................................................................... 4 3 器件介紹 ........................................................................................................................ 5 單片機簡介 .............................................................................................................. 5 單片機的發(fā)展歷史 .................................................................................................. 5 AT89S52 單片機 ....................................................................................................... 6 紅外遙控的發(fā)射和接收原理簡介 .......................................................................... 8 紅外線的介紹 .............................................................................................. 8 紅外通信基本原理 ....................................................................................... 8 紅外遙控發(fā)射系統(tǒng) ...................................................................................... 9 LCD1602 的介 紹 .................................................................................................... 12 AT24C02 的介紹 .................................................................................................... 15 4 硬件設計 ...................................................................................................................... 16 總體方案設計 ........................................................................................................ 16 電源部分的設計 .................................................................................................... 17 4. 3 復位電路的設計 ................................................................................................... 19 鍵盤電路的設計 .................................................................................................... 19 顯示電路的設計 .................................................................................................... 20 密碼保存電路設計 ................................................................................................ 21 蜂鳴器報警電路 .................................................................................................... 22 紅外接收電路 ........................................................................................................ 22 紅外發(fā)射電路 ........................................................................................................ 22 晶振電路 .............................................................................................................. 23 5 PROTUES 軟件和 KEIL 軟件的介紹 ......................................................................... 25 PROTUES 介紹 ...................................................................................................... 25 PROTUES 軟件介紹 .................................................................................. 25 PROTUES 軟件開發(fā)流程 .......................................................................... 25 KEIL 軟 件介紹 ....................................................................................................... 25 KEIL 開發(fā)軟件的介紹 ............................................................................... 25 KEIL 軟件開發(fā)流程 ................................................................................... 26 PROGISP 下載軟件 ............................................................................................... 29 6 程序流程圖 ................................................................................................................... 32 本機開鎖程序流程圖 ............................................................................................. 32 遙控發(fā)射程序流程圖 ............................................................................................. 34 密碼修改程序流程圖 .........