GPRS遠程登陸數據終端設計

目  錄
[中文摘要] 
[ABSTRACT] 
前言 
1緒論 1
1.1無線抄表的目標及意義 1
1.1.1研究背景 1
1.1.2研究意義 1
1.2國內外遠程無線自動抄表系統(tǒng)的發(fā)展及現狀 2
1.2.1國外無線自動抄表技術的發(fā)展及現狀 2
1.2.2我國無線自動抄表技術的發(fā)展及現狀 3
1.3本論文的主要工作 3
2 GPRS無線通信技術概述 5
2.1 GPRS技術及優(yōu)點 5
2.2 GPRS網絡結構 6
2.3 GPRS網絡傳輸協議平臺 6
2.4系統(tǒng)整體協議數據流程 6
2.4.1終端的精簡協議層次 6
2.4.2系統(tǒng)總體通信結構 7
2.5 GPRS的應用 9
3無線自動抄表系統(tǒng)的整體構建 9
3.1無線自動抄表方式分析 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無線電波抄表 12
3.1.5電話線網抄表 13
3.1.6以太網抄表 14
3.1.7 GSM/GPRS網絡無線抄表 15
3.2基于GPRS的復合式無線自動抄表系統(tǒng)的構建 16
3.2.1復合式無線自動抄表系統(tǒng)構建 16
3.2.2數據傳輸形式的選擇 17
3.2.3系統(tǒng)組網方式的選擇 18
4 數據終端設備的硬件系統(tǒng)設計 19
4.1硬件平臺的整體構建 19
4.2無線抄表系統(tǒng)的硬件設計 20
4.2.1無線通信模塊的比較和選擇 20
4.2.2無線 GPRS模塊ZWG-23DP GPRS DTU外圍電路設計 23
4.2.3 MCU主控制器及周邊電路設計 26
4.2.4 AT89S52單片機特點及結構 27
4.2.5 AT89S52串口特點及外圍電路設計 28
4.2.5.1串口特點 28
4.2.5.2通信接口電路 29
4.3無線抄表系統(tǒng)軟件的設計 31
4.3.1 MCU控制GPRS模塊ZWG-23DP軟件的設計 31
4.3.2：上位機軟件的實現： 34
5 實驗結果及分析 38
5.1實驗結果 38
5.2實驗結果的分析 38
5.3實驗總結 39
參考文獻 39
致謝 42
 

[摘要]水表、電表和氣表的抄錄是城市生活的一個大問題。每個月上門抄取用戶的三表讀數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，于是就出現了無線電力抄表系統(tǒng)。
該系統(tǒng)實現原理是一種基于GPRS技術的復合式無線自動無線抄表方案。該方案底層通信采用從站RF905無線長距離傳輸，采集用戶電表數值，主站接受到眾多從站數據再集中處理，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，把收到的數據通過Internet再轉發(fā)給數據中心，在Internet上設置一個中心服務器作為數據中心，負責與終端設備的通信，實現數據的實時采集和傳輸。
論文主要研究了該系統(tǒng)的關鍵部分——GPRS模塊登錄的硬件和軟件的設置。硬件實現包括微控制器與GPRS模塊的接口和外圍電路，其中微控制器選用MSP430，GPRS模塊采用廣州致遠公司公司的ZWG-23DP模塊。該終端硬件結構簡潔，系統(tǒng)功耗低，運行穩(wěn)定可靠。
[關鍵詞]：GPRS模塊，基于GPRS的無線抄表系統(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.