GPRS遠(yuǎn)程登陸數(shù)據(jù)終端設(shè)計(jì)

目  錄
[中文摘要] 
[ABSTRACT] 
前言 
1緒論 1
1.1無(wú)線抄表的目標(biāo)及意義 1
1.1.1研究背景 1
1.1.2研究意義 1
1.2國(guó)內(nèi)外遠(yuǎn)程無(wú)線自動(dòng)抄表系統(tǒng)的發(fā)展及現(xiàn)狀 2
1.2.1國(guó)外無(wú)線自動(dòng)抄表技術(shù)的發(fā)展及現(xiàn)狀 2
1.2.2我國(guó)無(wú)線自動(dòng)抄表技術(shù)的發(fā)展及現(xiàn)狀 3
1.3本論文的主要工作 3
2 GPRS無(wú)線通信技術(shù)概述 5
2.1 GPRS技術(shù)及優(yōu)點(diǎn) 5
2.2 GPRS網(wǎng)絡(luò)結(jié)構(gòu) 6
2.3 GPRS網(wǎng)絡(luò)傳輸協(xié)議平臺(tái) 6
2.4系統(tǒng)整體協(xié)議數(shù)據(jù)流程 6
2.4.1終端的精簡(jiǎn)協(xié)議層次 6
2.4.2系統(tǒng)總體通信結(jié)構(gòu) 7
2.5 GPRS的應(yīng)用 9
3無(wú)線自動(dòng)抄表系統(tǒng)的整體構(gòu)建 9
3.1無(wú)線自動(dòng)抄表方式分析 9
3.1.1 RS.485總線抄表 9
3.1.2低壓電力線載波抄表 10
3.1.3紅外抄表 12
3.1.4無(wú)線電波抄表 12
3.1.5電話線網(wǎng)抄表 13
3.1.6以太網(wǎng)抄表 14
3.1.7 GSM/GPRS網(wǎng)絡(luò)無(wú)線抄表 15
3.2基于GPRS的復(fù)合式無(wú)線自動(dòng)抄表系統(tǒng)的構(gòu)建 16
3.2.1復(fù)合式無(wú)線自動(dòng)抄表系統(tǒng)構(gòu)建 16
3.2.2數(shù)據(jù)傳輸形式的選擇 17
3.2.3系統(tǒng)組網(wǎng)方式的選擇 18
4 數(shù)據(jù)終端設(shè)備的硬件系統(tǒng)設(shè)計(jì) 19
4.1硬件平臺(tái)的整體構(gòu)建 19
4.2無(wú)線抄表系統(tǒng)的硬件設(shè)計(jì) 20
4.2.1無(wú)線通信模塊的比較和選擇 20
4.2.2無(wú)線 GPRS模塊ZWG-23DP GPRS DTU外圍電路設(shè)計(jì) 23
4.2.3 MCU主控制器及周邊電路設(shè)計(jì) 26
4.2.4 AT89S52單片機(jī)特點(diǎn)及結(jié)構(gòu) 27
4.2.5 AT89S52串口特點(diǎn)及外圍電路設(shè)計(jì) 28
4.2.5.1串口特點(diǎn) 28
4.2.5.2通信接口電路 29
4.3無(wú)線抄表系統(tǒng)軟件的設(shè)計(jì) 31
4.3.1 MCU控制GPRS模塊ZWG-23DP軟件的設(shè)計(jì) 31
4.3.2：上位機(jī)軟件的實(shí)現(xiàn)： 34
5 實(shí)驗(yàn)結(jié)果及分析 38
5.1實(shí)驗(yàn)結(jié)果 38
5.2實(shí)驗(yàn)結(jié)果的分析 38
5.3實(shí)驗(yàn)總結(jié) 39
參考文獻(xiàn) 39
致謝 42
 

[摘要]水表、電表和氣表的抄錄是城市生活的一個(gè)大問題。每個(gè)月上門抄取用戶的三表讀數(shù)是非常繁重的工作弊端，為省卻上門抄表打擾用戶的尷尬問題，于是就出現(xiàn)了無(wú)線電力抄表系統(tǒng)。
該系統(tǒng)實(shí)現(xiàn)原理是一種基于GPRS技術(shù)的復(fù)合式無(wú)線自動(dòng)無(wú)線抄表方案。該方案底層通信采用從站RF905無(wú)線長(zhǎng)距離傳輸，采集用戶電表數(shù)值，主站接受到眾多從站數(shù)據(jù)再集中處理，處理后通過RS.232短距離傳輸給上層GPRS終端， 上層GPRS終端利用自身的Internet接入功能，把收到的數(shù)據(jù)通過Internet再轉(zhuǎn)發(fā)給數(shù)據(jù)中心，在Internet上設(shè)置一個(gè)中心服務(wù)器作為數(shù)據(jù)中心，負(fù)責(zé)與終端設(shè)備的通信，實(shí)現(xiàn)數(shù)據(jù)的實(shí)時(shí)采集和傳輸。
論文主要研究了該系統(tǒng)的關(guān)鍵部分——GPRS模塊登錄的硬件和軟件的設(shè)置。硬件實(shí)現(xiàn)包括微控制器與GPRS模塊的接口和外圍電路，其中微控制器選用MSP430，GPRS模塊采用廣州致遠(yuǎn)公司公司的ZWG-23DP模塊。該終端硬件結(jié)構(gòu)簡(jiǎn)潔，系統(tǒng)功耗低，運(yùn)行穩(wěn)定可靠。
[關(guān)鍵詞]：GPRS模塊，基于GPRS的無(wú)線抄表系統(tǒng)的研究，ZWG-23DP。
 

Research on Automatic Meter Reading System
With GPRS
Student: TianyuanWan, Yangtze University College Of Technology Engineering
Counselor:ChenZhiZhao, Electronic Information Institute of Yangtze University
[ABSTRACT] Automatic Meter Reading(AMR)is a new technology in the supply and manageme Water,power,and gas.The disadvantage of traditional manual meter reading system ca overcome,such as lower efficiency and so on.Meanwhile,with the development of Ge acket Radio Service(GPRS)technology,which is introduced into the AMR system is a idea and will become a trend.
In this paper,a new automatic meter reading system based on GPRS is presented. system is based on the analysis of AMR technology and to meet the application of GPR wireless data transfer system GPRS terminal equipment for real.time data acquisition and transf The hardware and software design of data terminal equipment with GPRS is research this paper,which is the key technology of the system.
The hardware design of data term equipment is interface and supporting circuit design of the micro.controller and GPRS mo AT89S52 is selected as the MCU of this platform, ZWG.23DP lead.free modu chosen as the GPRS module.The equipment is compact，
 The AMR system proposed in this paper can be used in power meter system and wireless transfer applications.It can find wide applications and acquire great economic social benefits.
[Keywords]: GPRS Module, GPRS-based wireless meter reading system, ZWG-23DP.