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1、基于GPS的四軸飛行器導航系統(tǒng)設計摘要:四軸飛行器執(zhí)行任務就必須人工進行遙控或進行自主巡航。人工遙控只能完成視野內的任務,若要在人類難以到達的地方執(zhí)行任務,如災區(qū)、極地等,就必須使用自主巡航。用于民用的自主巡航飛行器可執(zhí)行水災、火災、地震等災情調查救援任務;化工廠等場所有毒氣體濃度監(jiān)測;重要設施連續(xù)監(jiān)控;輸油管線和輸電線路的巡查;區(qū)域性空-地、空-海通訊中繼;農田、林區(qū)農藥噴灑;當對特定地區(qū)進行日常環(huán)境監(jiān)測,也可以使用這種飛行器,自動巡查完后自動返航并自動記錄存儲數(shù)據(jù),大大減少人力成本。本文提出了一種基于GPS的簡易四
2、軸飛行器導航系統(tǒng)的設計與實現(xiàn)。該系統(tǒng)能接收并分析出需要的GPS定位信息,與存儲的定位坐標進行簡易地自主導航,并在顯示屏上模擬和顯示。同時也可測量飛行距離以及獲得準確的衛(wèi)星時間。詳細介紹了GPS系統(tǒng)的組成、定位誤差、數(shù)據(jù)接收和參數(shù)提取的方法,并同時研究了點陣液晶顯示屏字庫的建立與字符的顯示,以及I2C總線串口傳輸技術的實際運用。關鍵詞:GPS;四軸飛行器;自主導航中圖分類號:TP242.655ThedesignoffourshaftaircraftnavigationsystembasedonGPSAbstract:To
3、performtasks,fourshaftaircraftmustberemoteartificiallyforcontrolorcruiseindependently.Artificiallyremotecontrolcanonlycompletethetaskwithinsight,Ifwanttoperformtasksintheplacethathumaninaccessible,Suchasdisasterarea,polar,etc,youmustuseindependentcruise.Forcivil
4、ianuseindependentcruisevehicleexecutabletothedisasterinvestigationrescuemissionsuchasflood,fireorearthquake;poisonousgasesconcentrationmonitoringinchemicalfactories;Importantfacilitiescontinuousmonitoring;Oilpipelinesandtransmissionlinesearch;Regionalair-to-grou
5、nd,air-to-marinecommunicationrelay;Thefarmlandandforestpesticidesprays;ifweneedgettospecificareasfordailyenvironmentmonitoring,Alsocanusethisaircraft.Automaticreturnafterbeautomaticsearchandautomaticrecordstoredata,greatlyreducethemanpowercost.Thispaperputsforwa
6、rdamethodofsimplefourshaftvehiclenavigationsystemdesignandimplementationwhichbasedonGPS.ThesystemcanreceiveandanalyzeGPSpositioninginformationthatweneed,andstoragepositioningcoordinateeasily,andautonomousnavigation,simulateandthendisplayonthescreen.Italsocanmeas
7、urableflightdistanceandgetaccuratesatellitetime.Introducesthecomposition,positioningerror,datareceivingofGPSsystem,andmethodofparameterextraction,andtheestablishmentoftheLCDscreenfonts,andtheapplicationofcharactersI2Cbuspracticaltheserialtransmissiontechnology..
8、Keywords:GPS;Fourshaftvehicle;AutonomousnavigationClassification:TP242.655目錄摘要I目錄III1緒論11.1研究背景11.2國內外四軸飛行器自主導航系統(tǒng)發(fā)展現(xiàn)狀11.2.1國內外飛行器的發(fā)展和應用11.2.2全球定位系統(tǒng)GPS發(fā)展概述31.3系統(tǒng)簡介41.3