MODEM遠(yuǎn)程監(jiān)控系統(tǒng)設(shè)計(jì)
2.5 萬(wàn)字 43頁(yè)


摘 要
本設(shè)計(jì)屬于遠(yuǎn)程監(jiān)控研究領(lǐng)域，目的在于使用計(jì)算機(jī)和單片機(jī)通過(guò)Modem和現(xiàn)有的公共電話網(wǎng)組成開(kāi)放式遠(yuǎn)程監(jiān)控系統(tǒng)，完成遠(yuǎn)程數(shù)據(jù)的采集、傳輸以及遠(yuǎn)程設(shè)備的控制。系統(tǒng)由前端數(shù)據(jù)采集器、遠(yuǎn)程通信子系統(tǒng)和終端監(jiān)控計(jì)算機(jī)三部分構(gòu)成，設(shè)計(jì)中使用8051單片機(jī)作前端數(shù)據(jù)采集控制器核心元件，可實(shí)現(xiàn)八個(gè)開(kāi)關(guān)量、八個(gè)模擬量的數(shù)據(jù)采集以及八個(gè)輸出開(kāi)關(guān)量的控制。前端數(shù)據(jù)采集控制器經(jīng)外置Modem、電話線與遠(yuǎn)程計(jì)算機(jī)通信，能實(shí)現(xiàn)多點(diǎn)數(shù)據(jù)的采集和設(shè)備控制。終端監(jiān)控計(jì)算機(jī)接收遠(yuǎn)程前端數(shù)據(jù)采集器傳送的數(shù)據(jù)，利用計(jì)算機(jī)對(duì)采集到的數(shù)據(jù)進(jìn)行處理、存儲(chǔ)及分析。該部分軟件使用Visual Basic6.0語(yǔ)言編寫(xiě)，利用數(shù)據(jù)庫(kù)管理接收數(shù)據(jù)，可進(jìn)行數(shù)據(jù)的動(dòng)態(tài)顯示、查詢報(bào)表和備份，對(duì)超限數(shù)據(jù)可進(jìn)行聲光報(bào)警顯示。

關(guān)鍵詞：遠(yuǎn)程監(jiān)控；數(shù)據(jù)采集；串口通信


Abstract
Currently, each realm in our nation, have thousands sensor, detector, the intelligence appearance or other equipmentseses to circulate on the spot, proceed from solid hour's monitor and control and strengthen the business enterprise inner part management etc. reason, many measure to control the system demand collect on the scene of data deliver to the supervision machine or server( general is PC machine)s of the far-away place, datas between they exchange to go the or network of RS485s through a RS232 string generally to carry out, but the RS232 connect to deliver the distance to only have several ten meters, even converting the industry 485 networks connect, delivering the distance to also only have several thousand meters.Make use of public exchange the telephone net( PSTN), pass the Modem and can be free from the distance restrict transmission data.According to this we designed a kind of cost low, the credibility high long range data monitor system.The long range data collect ......

Key Words：Remote monitor；The data acquisition；An oscular of correspondence

目 錄
摘 要 I
Abstract II
緒 論 V
第1章 整體設(shè)計(jì)方案 1
1.1 系統(tǒng)組成框圖 1
1.2 整體開(kāi)發(fā) 1
1.2.1、整體方案 1
1.2.2、硬件電路設(shè)計(jì)數(shù)據(jù)采集原理 2
1.3 系統(tǒng)簡(jiǎn)述 2
1.3.1 前端數(shù)據(jù)采集器 2
1.3.2 終端監(jiān)控計(jì)算機(jī) 3
1.3.3 遠(yuǎn)程通信網(wǎng) 3
第2章 前端數(shù)據(jù)采集器硬件電路設(shè)計(jì) 4
2.1 硬件電路組成原理 4
2.2 Modem 接口電路 4
2.3 硬件電路方案選擇 5
2.4 主要器件說(shuō)明 5
2.4.1 8位串行AD轉(zhuǎn)換器ADC0832 5
2.4.2 X5045看門(mén)狗 9
2.4.3 MAX232芯片 12
2.4.4 TC4051B八選一電子開(kāi)關(guān) 15
2.4.5 74LS595帶鎖存移位寄存器 15
第3章 系統(tǒng)軟件設(shè)計(jì) 17
3.1 程序流程框圖及說(shuō)明 17
3.1.1 8051單片機(jī)主程序流程框圖及說(shuō)明 17
3.1.2監(jiān)控計(jì)算機(jī)主程序流程框圖及說(shuō)明 23
3.2 Visual Basic 6.0實(shí)現(xiàn)遠(yuǎn)程通信的軟件編程方法 23
3.2.1 AT指令簡(jiǎn)介 25
3.2.2 MSComm控件的屬性和事件 27
3.2.2 用MSComm 控件實(shí)現(xiàn)遠(yuǎn)程通信的方法 33
3.3 監(jiān)控計(jì)算機(jī)主操作界面說(shuō)明 35
3.3.1主操作界面 35
3.3.2操作主界面功能簡(jiǎn)介 35
結(jié) 論 37
致 謝 38
參 考 文 獻(xiàn) 39



參 考 文 獻(xiàn)
[4] 徐惠民,安德寧.單片微型計(jì)算機(jī)原理接口及應(yīng)用.北京:北京郵電學(xué)院出版社
[5] 李朝陽(yáng).PC機(jī)及單片機(jī)數(shù)據(jù)通信技術(shù).北京;北京航空航天大學(xué)出版社
[6] 李克春.IBM PC系列微機(jī)接口與通訊原理及實(shí)例.大連:大連理工大學(xué)出版社