【正文】 .....................................................1 概述 .................................................................................................................................................................1 論文目的和意義及創(chuàng)新點(diǎn) .......................................................................................................................1 智能家居安防系統(tǒng)初步構(gòu)建的意義及本課題主要的研究?jī)?nèi)容 ...............................................2 基于無(wú)線傳感器網(wǎng)絡(luò)的智能家居安防系統(tǒng)初步構(gòu)建的意義 .................................................2 本課題主要的研究?jī)?nèi)容 ........................................................................................................................2 國(guó)內(nèi)外研究現(xiàn)狀 ..........................................................................................................................................3 小結(jié) ..................................................................................................................................................................4第二章 智能家居安防系統(tǒng)整體方案設(shè)計(jì) ...............................................................................................5 智能家居安防系統(tǒng)的系統(tǒng)結(jié)構(gòu) .............................................................................................................5 系統(tǒng)設(shè)計(jì)方案 ...............................................................................................................................................6 系統(tǒng)性能指標(biāo) ...........................................................................................................................................6 系統(tǒng)設(shè)計(jì)原理 ...........................................................................................................................................6 后臺(tái)處理軟件部分所實(shí)現(xiàn)的功能 .........................................................................................................7 下位機(jī)部分所實(shí)現(xiàn)的功能 .......................................................................................................................8 小結(jié) ..................................................................................................................................................................9第三章 智能家居安防系統(tǒng)硬件電路設(shè)計(jì) .............................................................................................10 可燃?xì)怏w傳感器電路模塊 .....................................................................................................................10 MQ306A 氣體傳感器概述 ................................................................................................................10 MQ306A 測(cè)試電路 ..............................................................................................................................10 數(shù)據(jù)采集 A/D 轉(zhuǎn)換模塊 ........................................................................................................................12 ADC0809 模數(shù)轉(zhuǎn)換芯片概述 ..........................................................................................................12 ADC0809 與 AT89S52 接口電路 ...................................................................................................12 無(wú)線收發(fā)模塊 ............................................................................................................................................13 PTR8000 無(wú)線收發(fā)原理 .....................................................................................................................13 PTR8000 無(wú)線收發(fā)數(shù)傳模塊的特點(diǎn)及應(yīng)用 ..............................................................................13 后臺(tái)處理軟件與下位機(jī)通信接口設(shè)計(jì) ............................................................................................14 MAX232 電平轉(zhuǎn)換芯片概述 ............................................................................................................14 DB9 的連接圖 .........................................................................................................................................14 MAX232 電平轉(zhuǎn)換電路 .....................................................................................................................15 電器控制模塊 ............................................................................................................................................16 PC817 光電耦合器概述 .....................................................................................................................16 PC817 與 AT89S52 單片機(jī)接口電路及 PC817 與繼電器接口電路 .................................16 電器控制電路原理 ................................................................................................................................17 小結(jié) ...............................................................................................................................................................18第四章 智能家居安防系統(tǒng)軟件設(shè)計(jì) .......................................................................................................19 后臺(tái)處理軟件與下位機(jī)的分工 ...........................................................................................................19 PC 機(jī)實(shí)時(shí)顯示模塊（后臺(tái)處理軟件）軟件設(shè)計(jì) .........................................................................19 軟件編譯環(huán)境 ........................................................................................................................................19 后臺(tái)處理軟件程序流程圖 .................................................................................................................20 程序語(yǔ)言選擇 ........................................................................................................................................21 后臺(tái)處理軟件程序 ...............................................................................................................................21 數(shù)據(jù)采集傳輸模塊（下位機(jī)）軟件設(shè)計(jì) .......................................................................................21 軟件編譯環(huán)境 ........................................................................................................................................21 下位機(jī)程序流程圖 ................................................................................................................................22 程序語(yǔ)言選擇 .............................................