【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 ..................................................................................................................... 3 第 3 章 系統(tǒng)設(shè)計分析 ............................................................................................................. 5 總體設(shè)計分析 .............................................................................................................. 5 硬件模塊 ..................................................................................................................... 6 振鈴音的檢測 .................................................................................................... 6 自動摘掛機 ........................................................................................................ 6 控制電器 ............................................................................................................ 7 雙音頻解碼 ........................................................................................................ 7 雙音頻發(fā)送 ........................................................................................................ 7 實時時鐘 ............................................................................................................ 8 語音提示 ............................................................................................................ 9 軟件模塊 ...................................................................................................................... 9 信號音計數(shù) ........................................................................................................ 9 密碼檢測 ............................................................................................................ 9 信號分析處理 .................................................................................................... 9 軟件定時功能 .................................................................................................. 10 第 4 章 硬件單元電路設(shè)計 ....................................................................................................11 振鈴檢測電路 .............................................................................................................11 模擬摘掛機電路 ........................................................................................................ 13 雙音頻解碼電路 ........................................................................................................ 14 語音提示電路 ............................................................................................................ 16 實時時鐘電路 ............................................................................................................ 21 設(shè)備控制電路 ............................................................................................................ 21 第 5 章 軟件簡介 ................................................................................................................... 23 密碼檢測部分 ............................................................................................................ 25 密碼修改部分 ............................................................................................................ 25 電器控制部分 ............................................................................................................ 26 振鈴計數(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 ...................................................................................................... 30 模擬摘掛機 ...................................................................................................... 31 控制電器 .......................................................................................................... 31 雙音頻檢測 ...................................................................................................... 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 ................................................................