【正文】 reliability and realtime, an electric remote meter reading system based on the Mobitex wireless munication technology is presented.Mobitex is a special wireless data munication work . It bases on the honeyb technique, and follows the MASC (Mobitex Asynchronous Communication Protocol) protocol. It achieves the firstrate efficiency by grouping switching ,and id advanced in the narrowband wireless data munication domain in the word .The operating principle of the system and the design of software and hardware structure is explained in detail. This system adopts the M3000 wireless munication consists. It realizes the data realtime gathering and the transmission by Mobitex wireless data special work. It has the characteristics of steady transmission, high reliability and strong realtime, thus it can satisfy the needs of electric remote meter reading system pletely, and there is a very good market foreground.Key words：Mobitex。該系統(tǒng)采用M3000無線通信模塊，通過Mobitex無線數(shù)據(jù)專用網(wǎng)絡(luò)實現(xiàn)對數(shù)據(jù)的實時采集和傳輸。它以蜂窩技術(shù)位基礎(chǔ)，尊循MASC(Mobitex Asynchronous Communication Protocol)協(xié)議，使用分組交換來實現(xiàn)最高效率，在窄帶無線數(shù)據(jù)通信領(lǐng)域中處于世界領(lǐng)先地位。 摘 要針對電力遠程抄表系統(tǒng)對數(shù)據(jù)可靠性和實時性的要求，提出了一種基于Mobitex無線通信技術(shù)的電力遠程抄表系統(tǒng)。Mobitex是一種專用無線數(shù)據(jù)網(wǎng)絡(luò)。本文詳細介紹了該抄表系統(tǒng)的工作原理以及軟、硬件結(jié)構(gòu)設(shè)計。具有傳輸穩(wěn)定，可靠性高、實時性強等特點，完全能夠滿足電力遠程抄表系統(tǒng)的需求，有著很好的市場應(yīng)用和推廣前景。 meter reading system。 M3000；meter reading software；meter reading hardware 目 錄第一章 緒論 ..............................................................................................................1 無線抄表系統(tǒng)的概述 ......................................................................................1 抄表器的幾種常用通信技術(shù) ..........................................................................1 電力線載波通信 .......................................................................................1 無線擴頻通信 ...........................................................................................1 復(fù)合通信 ...................................................................................................2 本文主要工作及內(nèi)容安排 ..............................................................................2第二章 MOBITEX 技術(shù)原理及應(yīng)用 ...........................................................................3 MOBITEX 技術(shù)概述 ...........................................................................................3 系統(tǒng)概要 ..................................................................................................3 網(wǎng)絡(luò)結(jié)構(gòu) ..................................................................................................3 OSI 系統(tǒng)模型 ...................................................................................................4 MASC 協(xié)議 ......................................................................................................5 控制幀 ......................................................................................................5 信息幀格式 ..............................................................................................6 MPAK 協(xié)議 ......................................................................................................8 MOBITEX 無線抄表器系統(tǒng) ...............................................................................9 前端采集子系統(tǒng) .....................................................................................10 通信子系統(tǒng) ............................................................................................10 中心處理子系統(tǒng) ....................................................................................10第三章 MOBITEX 無線抄表器的硬件 ..................................................................1 MOBITEX 無線抄表器硬件構(gòu)成 .......................................................................1 主控模塊 ..........................................................................................................2 通信模塊 ..........................................................................................................3 Modem 通信模塊 ......................................................................................3 RS485 通信模塊 ........................................................................................5 時鐘模塊 ..........................................................................................................6 存儲模塊 ..........................................................................................................7 看門狗模塊 ......................................................................................................8第四章 MOBITEX 無線抄表器的軟件 .................................................................1 抄表系統(tǒng)軟件設(shè)計 ..........................................................................................1 軟件模塊 ..........................................................................................................1 數(shù)據(jù)采集模塊 ..........................................................................................1 設(shè)置控制模塊 ..........................................................................................2 數(shù)據(jù)處理模塊 ..........................................................................................3 MODEM 的軟件設(shè)計 .........................................................................................3 通信模塊 ..................................................................................................3第五章 結(jié)束語 ..........................................................................................................5