【正文】 ystem easy to use, economical and practical, functional flexibility, not only can be used in home appliance control, but also widely used in other places of various types of equipment control. With the future of intelligent home appliances, work development direction. Key Words： Telephone remote control, DTMF decoder, SCM control, Household appliances control Thesis Type: Application I 目 錄 第 1 章 緒 論 ........................................................................................................................... 1 選題背景 ..................................................................................................................... 1 任務(wù)要求 ..................................................................................................................... 2 第 2 章 總體設(shè)計(jì) ..................................................................................................................... 3 第 3 章 系統(tǒng)設(shè)計(jì)分析 ............................................................................................................. 5 總體設(shè)計(jì)分析 .............................................................................................................. 5 硬件模塊 ..................................................................................................................... 6 振鈴音的檢測(cè) .................................................................................................... 6 自動(dòng)摘掛機(jī) ........................................................................................................ 6 控制電器 ............................................................................................................ 7 雙音頻解碼 ........................................................................................................ 7 雙音頻發(fā)送 ........................................................................................................ 7 實(shí)時(shí)時(shí)鐘 ............................................................................................................ 8 語音提示 ............................................................................................................ 9 軟件模塊 ...................................................................................................................... 9 信號(hào)音計(jì)數(shù) ........................................................................................................ 9 密碼檢測(cè) ............................................................................................................ 9 信號(hào)分析處理 .................................................................................................... 9 軟件定時(shí)功能 .................................................................................................. 10 第 4 章 硬件單元電路設(shè)計(jì) ....................................................................................................11 振鈴檢測(cè)電路 .............................................................................................................11 模擬摘掛機(jī)電路 ........................................................................................................ 13 雙音頻解碼電路 ........................................................................................................ 14 語音提示電路 ............................................................................................................ 16 實(shí)時(shí)時(shí)鐘電路 ............................................................................................................ 21 設(shè)備控制電路 ............................................................................................................ 21 第 5 章 軟件簡(jiǎn)介 ................................................................................................................... 23 密碼檢測(cè)部分 ............................................................................................................ 25 密碼修改部分 ............................................................................................................ 25 電器控制部分 ............................................................................................................ 26 振鈴計(jì)數(shù)部分 ............................................................................................................ 26 第 6 章 系統(tǒng)調(diào)試 ................................................................................................................... 28 整體調(diào)試 .................................................................................................................... 28 靜態(tài)調(diào)試 .......................................................................................................... 28 動(dòng)態(tài)調(diào)試 .......................................................................................................... 29 硬件單元電路 ............................................................................................................ 30 II 5V穩(wěn)壓電源 ................................................................................................. 30 振鈴音檢 測(cè) ...................................................................................................... 30 模擬摘掛機(jī) ...................................................................................................... 31 控制電器 .......................................................................................................... 31 雙音頻檢測(cè) ...................................................................................................... 32 按鍵去抖問題 .................................................................................................. 32 其它模塊 .......................................................................................................... 34 軟件程序調(diào)試 ............................................................................................................ 34 軟件系統(tǒng)設(shè)置 .................................................................................................. 34 提示音信號(hào) ................................................................