机器乌鸦成功骗过真老鹰.doc

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1、机器乌鸦成功骗过真老鹰　　ETRoboRavenFoolsHawksRoboTIcBird　　　　AhawkattackstheRoboRaven，aremarkablylifelikeroboTIcbird.Credit：YouTubescreengrabfromMarylandRoboTIcsCenterViewfullsizeimage　　Hawksandotherbirdsofpreyarefamousfortheirkeeneyesight.　　Butresearchershavecreatedarob

2、oTIcbirdsolifelikethatit‘sevenfooledhawks，whichswoopdownandattackitthewaytheywouldanyotherpigeonlikebird.　　DevelopedattheMarylandRoboticsCenter，therobot—dubbedRoboRaven—ismadeofcarbonfiber;3D-printed，lightweight，thermal-resistantplastic;foam;andsilveryMylarfo

3、il（foritswingsandtail），Military.comreports.［ImageGallery：RemarkableBionicAnimals］　　RoboRavenisalmost2feetlong（60cm）andweighslessthanacanofsoda.Itsoriginaldesignwasdevelopedin2007byUniversityofMarylandprofessorsS.K.GuptaandHughBruck，whocarriedthebattery-powere

4、dbirdthroughseveralevolutionsbeforearrivingatthecurrentmodel.　　Thelongleadtimewasnecessarybecause，duringthetrial-and-errorprocessneededtoimprovetheroboticbird，anyerrorwouldleadtoacrash.Thiswouldsometimesdestroytherobot，soeachstepinthedesignprocesswaspainstaki

5、nglyslow.　　Whatmakesthecurrentmodelsorealisticisitsabilitytomoveeachwingindependentlyoftheother，justasrealbirdsdo.ThisenablestheRoboRaventoswoop，soar，diveandflapitswingsinamuchmoreaerobaticwaythanoldermodels，whosewingscouldonlymovesimultaneously.　　“Ournewrobo

6、t，RoboRaven，isbasedonafundamentallynewdesignconcept，”Guptasaidinanewsrelease.“Itusestwoprogrammablemotorsthatcanbesynchronizedelectronicallytocoordinatemotionbetweenthewings.”　　SomeofthedesignimprovementstotheRoboRavenwereinspiredbydesignsfoundinnature.Forexa

7、mple，therobotusesahollowframeworktoprovideastiff，lightweightstructure;realbirdsuseahollowskeletalsystemforthesametask.　　Therobotisguidedbyahandheldradiothatcontrolsitsflight.SomeofthefundingfortheRoboRavenwasprovidedbytheU.S.ArmyResearchLaboratory，whichisinve

8、stigatingtheRoboRaven’spossibleusesforsurveillanceandothermissions.　　TheRoboRaven“attractsattentionfrombirdsinthearea，”JohnGerdes，anengineerattheArmy’sAberdeenProvingGroundinMaryland，told