資源描述:
《基于MSP430的仿生偏振光導(dǎo)航傳感器的設(shè)計與實現(xiàn).pdf》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、2012年第31卷第8期傳感器與微系統(tǒng)(TransducerandMicrosystemTechnologies)107基于MSP430的仿生偏振光導(dǎo)航傳感器的設(shè)計與實現(xiàn)褚金奎,林林,陳文靜,王寅龍(大連理工大學(xué)精密特種加工教育部重點實驗室,遼寧大連116023)摘要:根據(jù)沙漠螞蟻Cataglyphis的導(dǎo)航機理,采用分段導(dǎo)航算法研制了以MSP430為控制核心的偏振光導(dǎo)航傳感器。該傳感器利用分段算法通過變化明顯的兩路電壓信號計算導(dǎo)航角,分辨率高,采用混合信號處理器降低傳感器功耗,無線通信方式增加了信號傳輸距離和
2、靈活性,方便應(yīng)用。分析了傳感器導(dǎo)航機理和分段導(dǎo)航算法;設(shè)計傳感器的硬件電路和軟件程序,制作傳感器樣機;為了測試傳感器的性能,在標(biāo)定平臺上進行了實驗,并處理實驗數(shù)據(jù),得出傳感器原始誤差在±0.6。以內(nèi),誤差補償后導(dǎo)航精度在±0.2。以內(nèi)。實驗證實:偏振光傳感器自主導(dǎo)航,精度高,性能穩(wěn)定,在導(dǎo)航系統(tǒng)中有廣泛的應(yīng)用前景。關(guān)鍵詞:仿生;偏振光;傳感器;導(dǎo)航;MSP430中圖分類號:TP394.1;TH691.9文獻標(biāo)識碼:A文章編號:1000-9787(2012)08-0107-04Designandrealizati
3、onofbionicpolarizedlightnavigationsensorbasedonMSP430CHUJin—kui,LINLin,CHENWen-jing,WANGYin-long(KeyLaboratoryofTechnologyPrecision&Non-traditionalMachiningofMinistryofEducation,DalianUniversityofTechnology,Dalian116023,China)Abstract:Accordingtothedese~ants
4、Cataglyphisnavigationmechanism,subsectionnavigationalgorithmisusedtoresearchthepolarizedlightnavigationsensorusingMSP430ascontrolcore.Thesensorusestwovohagesignalsofvariationtocalculatenavigationanglethroughsubsectionalgorithm,ithashighresolution,themixedsig
5、nalprocessorisusedtoreducepowerconsumptionofthesensor,wirelesscommunicationmodeincreasessignaltransmissiondistanceandflexibility,itisconvenienttoapply.Thesensornavigationmechanismandsubsectionnavigationalgorithmareanalyzed.Thesensorhardwarecircuitandsoftwm'e
6、programaredesigned,andthesensorprototypeismade.Inordertotesttheperformanceofthesensor,experimentsarecarriedoutonthecalibratingplatform,theoriginalerrorofthesensoriswithin0.6。,aftercompensation,navigationprecisoniswithin0.2。.Theexperimentverifiesthatthepolari
7、zedlightsensornavigatesindependently,ithashighprecisionandworksstablyandhasbroadapplicationprospectinnavigationsystem.Keywords:bionic;polarizedlight;sensor;navigation;MSP4300引言Cataglyphis腦部POL神經(jīng)元將復(fù)眼接收的天空偏振光信號大自然蘊藏著大量的智慧和能量,人們向自然界學(xué)習(xí)轉(zhuǎn)換成相應(yīng)的電信號進而導(dǎo)航。除了沙蟻,自然界中很的理念
8、也逐步提升。近年來,許多科研工作者展開了對自多昆蟲的遷移、覓食都是利用天空偏振光導(dǎo)航,例如:蜘蛛然界的研究探索,人工智能、仿生學(xué)、仿生機器人等研究越利用二階眼結(jié)構(gòu)過濾偏振光信息找到回巢穴的方向J,來越受社會關(guān)注。這些研究最終目的就是為了探索千萬年KinoshitaM等人研究分析了沙漠蝗蟲的腦神經(jīng)的光譜特性演變后的自然界,并將研究成果運用到生產(chǎn)和生活中。反應(yīng)與外界偏振光方向相對應(yīng)J。We