摘 要

本設計通過家居智能化技術，實現家庭中各種與信息技術相關的通訊設備、家用電器和家庭安防裝置網絡化，通過電話連接到一個家居智能化系統上進行集中或異地的監(jiān)控和家庭事務管理，并保持這些家庭設施與住宅環(huán)境的和諧與協調。家居智能化所提供的是一個家居智能化系統構成的高度安全性、生活舒適性和通訊快捷性的信息化與自動化居住空間。
智能家居控制器是建立在STC89C52RD單片機平臺上的一套完整的家庭智能化監(jiān)控系統。包括集中監(jiān)控和遠程監(jiān)控兩個方面，這兩個部分被集成在一起，既可以進行本地監(jiān)控，還可以按人們的需求實現遠程監(jiān)控。
集中監(jiān)控方面主要通過家電監(jiān)控、傳感器數據采集、報警等模塊來實現的。在集中監(jiān)控方面，可以完成家電的集中監(jiān)控、家庭安防報警等功能，即單片機控制器通過與各個功能模塊間的通信來進行統一的監(jiān)控與管理，以便完成相應的功能。遠程監(jiān)控方面，主要是利用雙音頻(DTMF)編解碼芯片MT8880實現了一種簡單的電話按鍵遠程監(jiān)控系統，利用ISD公司的語音芯片為其提供良好的語音界面；系統由單片機、振鈴檢測電路、模擬摘掛機電路、DTMF信號收發(fā)電路、語音電路等組成。
本系統電路簡單并且采用了51系列單片機及經常使用的芯片，從而大大降低了系統造價，并且使系統有很強的穩(wěn)定性，而且該系統具有結構簡單，使用方便，性能穩(wěn)定等一系列優(yōu)點，因此該控制器有很大的推廣價值。

關鍵詞：智能家居 雙音多頻DTMF 單片機STC89C52RD 編解碼芯片MT8880
Abstract
By home intelligent technology，we can monitor，control and administer smart home system which is combined by all kinds of equipments such as communication equipments about information system，electrical appliances and home alarm equipment and also we can make it much closer to people’s daily life. The smart home system provides an automatic living space with high security， comfort and fast communication .
Intelligent home controller of this design is a set of complete intellectual monitor system solution of family, which establishment in platform of STC89C52RD. Including two big aspects of the central monitor and the long-distance monitor, the two kinds of monitor process is concentrated together, so it may carry on monitor locally, and also remote monitor according to people's demand realization.
In the central monitor aspect, it may get functions in the central monitor of electrical appliances, the family safe guard’s reports to the police and so on. In a word, in order to complete the corresponding function, the CPU server carries on the monitor and the management corresponded through the connection with each function module; Aspect of central monitor get realizes through the module of the electrical appliances control, the sensor data acquisition, reports to the police and so on. In the other monitor aspect, it get a kind of simple telephone pressed key long-distance external guidance system mainly by the double audio frequency to arrange decoding chip of MT8880, and adopts the chip produced by ISD corporation to get a good pronunciation contact surface; The system is composed mainly by the microcontroller, ringing examination circuit, the simulation picking and hanging circuit, the DTMF signal receiving and dispatching circuit, the pronunciation circuit and so on.
The system’s circuit is simple and adopts the chips which 51 Microcontroller and some often use in actual, thus reduced the system cost greatly and hence stability, also achieve a series of merits, for example have greater stability, have more simple structure, easier to operate, the performance steadily grades, so the control system has very high value to promote.
Keywords：Intelligent home
Dual-tone multi frequency DTMF
Single chip STC89C52RD
Coding and decoding COMS chip MT8880
目 錄
摘 要 I
Abstract II
第1章 緒論 1
1.1 國內外研究現狀及發(fā)展趨勢 1
1.1.1 國外發(fā)展現狀 1
1.1.2 國內發(fā)展現狀 2
1.1.3發(fā)展趨勢 3
1.2 設計的目的和意義 4
1.3 本設計的主要工作內容 5
第2章 系統總體方案設計 6
2.1 總體方案 6
2.1.1 遠程監(jiān)控方案 6
2.1.2 集中監(jiān)控方案 7
2.2 部分電路方案論證 8
2.2.1 振鈴檢測部分 8
2.2.2 編解碼芯片的選擇 9
2.2.3 振鈴芯片的選擇 10
第3章 系統各部分線路硬件設計 11
3.1 電話遠程監(jiān)控系統設計 11
3.1.1 引言 11
3.1.2 電話遠程監(jiān)控系統硬件設計 11
3.2 集中監(jiān)控設計 22
3.2.1 數據采集模塊 22
3.2.2 家電監(jiān)控模塊 26
3.2.3 報警模塊 26
3.3 單片機控制系統設計 27
3.3.1 微處理器CPU 27
3.3.2 復位電路 28
3.3.3 密碼檢測部分 29
3.3.4 電源電路 29
3.3.5 系統功能擴展 30
第4章 軟件實現 32
4.1 系統軟件設計 32
4.2 串行通訊軟件設計 33
4.2.1 RS-232C串行接口標準 33
4.2.2 數據接收程序： 35
結論 37
本設計的總體結論 37
整個設計的心得體會 37
智能家居的展望 38
致 謝 40
參考文獻 41
附錄1 43
附錄2 44
附錄3 47
附錄4 51