【正文】 論文題目： 基于電話網(wǎng)絡(luò)的遠(yuǎn)程控制器的設(shè)計(jì) (硬件 ) 專 業(yè)： 自動(dòng)化 本 科 生： 李偉 （簽名）＿＿＿＿ 指導(dǎo)教師： 陳文燕 （簽名）＿＿＿＿ 摘 要 本文 主要 介紹了一種 以 單片機(jī) AT89S52和雙音多頻解碼 集成電路 MT8870為核心，通過電話線路遙控的遠(yuǎn)程多路智能控制器。 該控制器通過將電話線上的雙音頻信號(hào)解碼后變?yōu)槎M(jìn)制信號(hào)送入 AT89S52單片機(jī)進(jìn)行相應(yīng)處理來實(shí)現(xiàn)對(duì)家電的遠(yuǎn)程控制 。 該遠(yuǎn)程控制器 硬件 包括： 振鈴 檢測(cè)電路、模擬摘 掛機(jī)電路、雙音頻解碼電路、語(yǔ)音 提示 電路及控制電路。 使用匯編語(yǔ)言編寫系統(tǒng)程序。 具有振鈴檢測(cè)、自動(dòng)摘掛機(jī)、 5位密碼驗(yàn)證、語(yǔ)音提示、選擇家用電器等功能，最終實(shí)現(xiàn)對(duì)家電的控制。也可以對(duì)被遙控家電的狀態(tài)進(jìn)行查詢。 該系統(tǒng)使用方便、 經(jīng)濟(jì)實(shí)用、功能靈活，不僅可應(yīng)用于家用電器控制，還可以廣泛應(yīng)用于其它場(chǎng)所的各種設(shè)備控制。 符合未來家電的智能化、網(wǎng)絡(luò)化發(fā)展方向。 關(guān)鍵詞 ：電話遙控、雙音頻編解碼、單片機(jī)控制 、 家用電器 控制 論文類型： 應(yīng)用 Subject: Design of Remote Controller Base on PSTN（ Hardware） Specialty: Automation Name: LiWei (Signature) Instructor:Cheng Wenyan (Signature) ABSTRACT This article introduces a AT89S52 to SCM and DTMF decoding IC MT8870 as the core, through the telephone lines of longrange multichannel remoteintelligent controller. The controller through telephone lines and the dualaudio signal into a binary signal decoded into AT89S52 SCM accordingly to achieve handling of household electric appliances to the remote control. The remote controller hardware, including: ringing detection circuit, analog circuit extraction hang up, doublecircuit audio codecs, voice prompt circuit and control circuits. The use of assembly language prepared by the system procedures. A ringing detection, automatic pick hang up, five password verification, voice prompts, select home appliances, and other functions, and eventually realize the control of household electric appliances. Can also be remote control of state for home appliances. The system 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(yǔ)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(yǔ)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 ........................................................................