資源描述:
《野外數(shù)據(jù)采集與遠(yuǎn)程傳輸系統(tǒng)設(shè)計(jì)》由會(huì)員上傳分享,免費(fèi)在線(xiàn)閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。
1、摘要傳統(tǒng)的野外數(shù)據(jù)采集需要人員到現(xiàn)場(chǎng)采集,采用這種方式一般信息反饋較慢。在一些地形復(fù)雜、氣候惡劣或人們不能時(shí)刻停留的地方,現(xiàn)場(chǎng)信息采集十分困難,同時(shí)采集人員的生命安全難以得到保障。隨著無(wú)線(xiàn)通信技術(shù)與網(wǎng)絡(luò)的發(fā)展,越來(lái)越多的電子設(shè)備安裝了無(wú)線(xiàn)通訊和網(wǎng)絡(luò)功能。通用分組無(wú)線(xiàn)業(yè)務(wù)(GPRS)技術(shù)將互聯(lián)網(wǎng)等寬帶數(shù)據(jù)網(wǎng)絡(luò)與無(wú)線(xiàn)通信網(wǎng)絡(luò)連接在一起,GPRS的應(yīng)用范圍很廣,可以用于互聯(lián)網(wǎng)開(kāi)發(fā)、移動(dòng)性管理以及無(wú)線(xiàn)監(jiān)控等方面。本文針對(duì)GPRS在野外數(shù)據(jù)采集與傳輸系統(tǒng)的應(yīng)用,通過(guò)無(wú)線(xiàn)傳輸?shù)姆绞浇鉀Q了野外數(shù)據(jù)傳輸?shù)膯?wèn)題。在遠(yuǎn)程節(jié)點(diǎn)部分用AVR單片
2、機(jī)作為主控芯片。當(dāng)傳感器采集到相應(yīng)的數(shù)據(jù)后傳送給AVR單片機(jī),單片機(jī)通過(guò)串口控制GPRS芯片MC55將數(shù)據(jù)發(fā)送到網(wǎng)絡(luò)或手機(jī)中,在數(shù)據(jù)中心處建立面向連接(TCP)、面向無(wú)連接(UDP)服務(wù)器,通過(guò)套接字(Socket)接收傳送的數(shù)據(jù),并存入數(shù)據(jù)庫(kù),同時(shí)動(dòng)態(tài)的生成曲線(xiàn)圖。本文在第一章對(duì)GPRS的原理及應(yīng)用做了介紹,在第二章介紹了本設(shè)計(jì)中用到的AVR(ATMEGAl6)單片機(jī)。在第三章介紹了數(shù)據(jù)采集部分用到的兩個(gè)傳感器:數(shù)字溫濕度傳感器(SHTIO)和灰塵傳感器(DSM501)。在第四章詳細(xì)的描述了遠(yuǎn)程節(jié)點(diǎn)的軟硬件設(shè)計(jì)及解決方
3、案,在第五章對(duì)數(shù)據(jù)中心的數(shù)據(jù)接收和處理方法進(jìn)行了詳細(xì)的介紹。最后一章對(duì)整個(gè)系統(tǒng)的性能進(jìn)行了測(cè)試,并給出結(jié)果。關(guān)鍵詞:通用分組無(wú)線(xiàn)業(yè)務(wù);套接字;面向連接;面向無(wú)連接AbstractTraditionalmethodinfielddatacollectionneedpeoplegotothefield,whichcausetheslowinformationfeedback.Itbecomesharderinsomeplaceswithcomplexterrainorbadweather.Notonlydatacollect
4、ionisverydifficult,butalsothesafetyofcollectionstaffCallhardlybeguaranteed.Withthedevelopmentofwirelesscommunicationstechnologyandnetwork,moreandmoreelectronicdevicesareequippedwithwirelessandnetworkfunctions.GeneralPacketRadioService(GPRS)technologywhichCanlinkt
5、heInteractandwirelesscommtmicationsnetworkcanbeusedinmanyareas,suchasInternetdevelopment,mobilitymanagementandwirelessmonitoring.ThispaperaimstosolvethefielddatatransmissionproblemsbyusingGPRSusedinfielddatacollectionandtransmissionsystem.AVRmicrocontrollcrischos
6、entocontroltheremotenode.Afterthesensorsfinishthedatacollection,AVRmicrocontrollercontroltheGPRSmodule(MC55)throughtheserialporttosendthedatatothenetworkortothemobilephone.TheDataCenterestablishesTCPandUDPserver,receivesthedatathroughtheSocket,andthenstoresinthed
7、atabase.Dynamiccurves躺generatedintheDataCentreatthesametime.TheprincipleandapplicationofGPRSisintroducedinchapter1.AVR(ATMEGA16)microcontrollerisin仃oducedinchapter2.Theusageofdigitaltemperatureandhumiditysensor(SHT10)andthedustsensor(DSM501)aregiveninchapter3.The
8、sol,rareandhardwaredesignofdatacollectionnodeisdescribedinchapter4.Themethodsforreceivingandprocessingdataindatacenterarepresentedinthechapter5.Theperformancea