gprs氣象數(shù)據(jù)傳輸系統(tǒng)的研究.doc
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gprs氣象數(shù)據(jù)傳輸系統(tǒng)的研究,摘 要傳統(tǒng)的數(shù)據(jù)傳輸總是存在各種各樣的問題。譬如說:有線網(wǎng)絡布線費用高、施工麻煩且易受到場合的限制，而無線網(wǎng)絡應用中，無線數(shù)據(jù)電傳在距離較遠時很難實現(xiàn)數(shù)據(jù)的準確傳輸，gsm短消息方式通訊量小且費用昂貴，租用衛(wèi)星對于民用產品價格又相對較高。第2.5代通訊技術gprs的出現(xiàn)很好的解決了這些問題。本課題重點對基于gprs氣象...
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摘 要
傳統(tǒng)的數(shù)據(jù)傳輸總是存在各種各樣的問題。譬如說:有線網(wǎng)絡布線費用高、施工麻煩且易受到場合的限制，而無線網(wǎng)絡應用中，無線數(shù)據(jù)電傳在距離較遠時很難實現(xiàn)數(shù)據(jù)的準確傳輸，GSM短消息方式通訊量小且費用昂貴，租用衛(wèi)星對于民用產品價格又相對較高。第2.5代通訊技術GPRS的出現(xiàn)很好的解決了這些問題。
本課題重點對基于GPRS氣象數(shù)據(jù)傳輸系統(tǒng)的研究,提出微控制器利用無線網(wǎng)絡連接到Internet進行氣象數(shù)據(jù)的傳輸，并應用于實際中。根據(jù)GPRS具有覆蓋范圍廣、數(shù)據(jù)傳輸速率高等特點來分析采用GPRS傳輸氣象數(shù)據(jù)的原因，來設計的硬件部分，從而達到系統(tǒng)的最優(yōu)化設計。文中首先介紹了GPRS的相關知識；其次介紹了單片機MSP430F147和GPRS模塊MC35I的特點和引腳圖；最后簡單介紹了AT命令。
關鍵詞: GPRS；MC35I；單片機
Abstract
There are always series of problems about the traditional weather station data,for example,the high cost of wired network cabling,construction problems and limitations of vulnerable situations.In the wireless network applications,wireless data fax is difficult to achieve the accuracy transmission of data in the distance,and GSM short message has a small amount of communication,and its cost is very expensive.The rental satellite has relatively high prices for produ-cts of civilian use.The emergence of 2.5G communication technology GPRS is a good solution to these problems.
This issue focuses on the research of GPRS data transmission system,proposes microcontroller using wireless network to connect to the Internet for the transmission of meteorological data that is applied in practice. In this paper,according to the characteristics like covering a wide range of aera,high data transfer rate etc,the reason of meteorological data transmission using GPRS is gived.Moreover,the hardware is designed to optimize.The design is based on the hardware and software of GPRS meteorological data transmission. What’s more,this design describes the working principle of GPRS,GPRS module MC35I and it introduces the microcontroller.
Keywords:GPRS;MC35I; Microprocessor
目 錄
引 言 1
第一章 GPRS介紹 2
1.1 GPRS概述 2
1.2 GPRS數(shù)據(jù)傳輸?shù)奶攸c 3
1.3 GPRS網(wǎng)絡結構和工作原理 4
1.3.1GPRS的工作原理 4
1.3.2 GPRS網(wǎng)絡結構 5
第二章 數(shù)據(jù)采集終端硬件電路設計 9
2.1系統(tǒng)硬件結構框圖 9
2.2 MSP430F147的電路設計 9
2.2.1 MSP430系列單片機特點 9
2.2.2 MSP430F147單片機特點 10
2.2.3 MSP430F147單片機結構及接口電路 11
2.3 電源電路 12
2.4復位電路 13
2.5 GPRS模塊功能介紹 13
2.6 MC35I引腳介紹 14
2.7 MC35I與SIM接口電路 16
2.8 MSP430F147與MC35I連接圖 17
第三章 系統(tǒng)的軟件設計 18
3.1模塊中與GPRS相關的AT指令介紹 18
3.2系統(tǒng)軟件流程圖 18
結 論 20
參考文獻 21
謝 辭 22
傳統(tǒng)的數(shù)據(jù)傳輸總是存在各種各樣的問題。譬如說:有線網(wǎng)絡布線費用高、施工麻煩且易受到場合的限制，而無線網(wǎng)絡應用中，無線數(shù)據(jù)電傳在距離較遠時很難實現(xiàn)數(shù)據(jù)的準確傳輸，GSM短消息方式通訊量小且費用昂貴，租用衛(wèi)星對于民用產品價格又相對較高。第2.5代通訊技術GPRS的出現(xiàn)很好的解決了這些問題。
本課題重點對基于GPRS氣象數(shù)據(jù)傳輸系統(tǒng)的研究,提出微控制器利用無線網(wǎng)絡連接到Internet進行氣象數(shù)據(jù)的傳輸，并應用于實際中。根據(jù)GPRS具有覆蓋范圍廣、數(shù)據(jù)傳輸速率高等特點來分析采用GPRS傳輸氣象數(shù)據(jù)的原因，來設計的硬件部分，從而達到系統(tǒng)的最優(yōu)化設計。文中首先介紹了GPRS的相關知識；其次介紹了單片機MSP430F147和GPRS模塊MC35I的特點和引腳圖；最后簡單介紹了AT命令。
關鍵詞: GPRS；MC35I；單片機
Abstract
There are always series of problems about the traditional weather station data,for example,the high cost of wired network cabling,construction problems and limitations of vulnerable situations.In the wireless network applications,wireless data fax is difficult to achieve the accuracy transmission of data in the distance,and GSM short message has a small amount of communication,and its cost is very expensive.The rental satellite has relatively high prices for produ-cts of civilian use.The emergence of 2.5G communication technology GPRS is a good solution to these problems.
This issue focuses on the research of GPRS data transmission system,proposes microcontroller using wireless network to connect to the Internet for the transmission of meteorological data that is applied in practice. In this paper,according to the characteristics like covering a wide range of aera,high data transfer rate etc,the reason of meteorological data transmission using GPRS is gived.Moreover,the hardware is designed to optimize.The design is based on the hardware and software of GPRS meteorological data transmission. What’s more,this design describes the working principle of GPRS,GPRS module MC35I and it introduces the microcontroller.
Keywords:GPRS;MC35I; Microprocessor
目 錄
引 言 1
第一章 GPRS介紹 2
1.1 GPRS概述 2
1.2 GPRS數(shù)據(jù)傳輸?shù)奶攸c 3
1.3 GPRS網(wǎng)絡結構和工作原理 4
1.3.1GPRS的工作原理 4
1.3.2 GPRS網(wǎng)絡結構 5
第二章 數(shù)據(jù)采集終端硬件電路設計 9
2.1系統(tǒng)硬件結構框圖 9
2.2 MSP430F147的電路設計 9
2.2.1 MSP430系列單片機特點 9
2.2.2 MSP430F147單片機特點 10
2.2.3 MSP430F147單片機結構及接口電路 11
2.3 電源電路 12
2.4復位電路 13
2.5 GPRS模塊功能介紹 13
2.6 MC35I引腳介紹 14
2.7 MC35I與SIM接口電路 16
2.8 MSP430F147與MC35I連接圖 17
第三章 系統(tǒng)的軟件設計 18
3.1模塊中與GPRS相關的AT指令介紹 18
3.2系統(tǒng)軟件流程圖 18
結 論 20
參考文獻 21
謝 辭 22
