一種數(shù)據(jù)手套交互控制模塊的設(shè)計(jì)與應(yīng)用

Teachers,students,weallgood,IamverygladtostandheretohaveareporttoyouIhopeyoucanenjoyitandgivemeyoursuggestionTodayIamheretogiveapresentationonDataglove數(shù)據(jù)手套是一種多模式的虛擬現(xiàn)實(shí)硬件，通過(guò)軟件編程，可進(jìn)行虛擬場(chǎng)景中物體的抓取、移動(dòng)、旋轉(zhuǎn)等動(dòng)作，也可以利用它的多模式性，用作一種控制場(chǎng)景漫游的工具Datagloveisavirtualrealityhardwaremodel,throughsoftwareprogramming,grasping,moving,rotatingmovementsofobjectsinvirtualscene,canalsousemultimode.Itisusedasatooltocontrolthesceneroaming數(shù)據(jù)手套一般按功能需要可以分為：虛擬現(xiàn)實(shí)數(shù)據(jù)手套、力反饋數(shù)據(jù)手套。Dataglovesgenerallyaccordingtothefunctionneedcanbedividedinto:virtualrealitydatagloves,forcefeedbackdatagloves.人們用手勢(shì)動(dòng)作來(lái)表達(dá)思想，感知客觀世界，完成各種操作。數(shù)據(jù)手套就是測(cè)量人手空間姿態(tài)的現(xiàn)實(shí)硬件，同時(shí)也是虛擬現(xiàn)實(shí)系統(tǒng)中的非常重要的設(shè)備，它可以跟蹤手勢(shì)動(dòng)作，測(cè)量手指姿態(tài)信息。Peopleusegesturestoexpressideas,toperceivetheobjectiveworld,tocompleteavarietyofoperations.Datagloveistherealhardwaretomeasurethehandspaceattitude,anditisalsoaveryimportantequipmentinthevirtualrealitysystem.Itcantrackthegesturesandmeasurethegestureinformationofthefinger.數(shù)據(jù)手套是虛擬仿真中最常用的交互工具。Datagloveisthemostcommontoolinvirtualsimulation.一種數(shù)據(jù)手套交互控制模塊的設(shè)計(jì)與應(yīng)用(ApplicationofInteraction&ControlModuleforaDataGlove)摘要:在三維虛擬環(huán)境下進(jìn)行虛擬制造(VM)，是當(dāng)今制造業(yè)發(fā)展的趨勢(shì)。數(shù)據(jù)手套是實(shí)現(xiàn)虛擬現(xiàn)實(shí)技術(shù)的交互設(shè)備之一，數(shù)據(jù)手套的應(yīng)用對(duì)于虛擬制造非常重要。研究數(shù)據(jù)手套的功能和原理，設(shè)計(jì)了一種面向虛擬制造的數(shù)據(jù)手套交互控制模塊。通過(guò)虛擬手的建模以及數(shù)據(jù)手套實(shí)時(shí)采集數(shù)據(jù)，來(lái)實(shí)現(xiàn)虛擬手與人手的手勢(shì)映射，并結(jié)合層次包圍盒算法實(shí)現(xiàn)虛擬手與虛擬場(chǎng)景的碰撞檢測(cè)。研究結(jié)果顯示，在模塊下人手到虛擬手的動(dòng)作映射和虛擬手對(duì)虛擬物體的碰撞檢測(cè)能基本滿足虛擬制造系統(tǒng)的理論要求具有一定的實(shí)用性。關(guān)鍵詞:虛擬制造;數(shù)據(jù)手套;虛擬手;碰撞檢測(cè)BSTRACT:VirtualManufacturing(VM)invirtualentironmentisthetrendofthemanufacturingdevelopmenttot-day.DatagloveisoneofthedevicesinVirtualRealityTechnology,andtheimplementationofthedatagloveisim-portantinvirtualmanufacturing.Throughstudyingtheprincipleandfunctionsofthedataglove,aninteraction&con-trolmoduleofdataglovefitforVirtualManufacturingisdesigned.Throughvirtualhandmodelingandcollectingthedatafrom

dataglove,thehandgesturemappingbetweenthevirtualhandandtherealhandisrealized,andthecolli-siondetectionbetweenvirtualhandandvirtualobjectsisimplementedbyusingBoundingVolumeHierarchy.Resultshowsthatthemodulecanimplementthemotionmappingfromhumanhandtovirtualhandandthecollisiondetectionbetweenvirtualhandandvirtualobjects,anditcanbasicallymeettherequirementofvirtualmanufacturingsystem,andhasacertainpracticability.KEYWORDS:Virtualmanufacturing(VM);Dataglove;Virtualhand;Collisiondetection我們做的工作：數(shù)據(jù)手拿文互控制賽每只手套有14個(gè)光電傳感器，可測(cè)量手指的近指骨和掌骨間關(guān)節(jié)之間的彎曲角度，中指骨和遠(yuǎn)指骨間之間的彎曲角度以及相鄰手指間的外展角度，共計(jì)14個(gè)數(shù)據(jù)在手套開啟和每次更換用戶后，需要重新設(shè)置并實(shí)時(shí)更新各傳感器原始數(shù)據(jù)。通過(guò)線性的數(shù)學(xué)公式根據(jù)原始數(shù)據(jù)的最大值和最小值,以及設(shè)定的數(shù)據(jù)取值范圍來(lái)得到獲取數(shù)據(jù)

TThereare14photoelectricsensorsofeachglove,bendinganglecanbemeasuredbetweenthefingermetacarpalandphalangealjointnearthebendanglebetweenthemiddlephalanxandfarbetweenthephalanxandtheadjacentfingerabductionangle,atotalof14datainthegloveopeningandeverychangeoftheuser,needtoresetandtheoriginaldataofthesensorrealtimeupdate.Accordingtothemaximumandminimumvaluesoftheoriginaldata,andtherangeofthedataset,thelinearmathematicalformulaisobtained.數(shù)據(jù)手拿文互控制賽中指骨近堿事.膏人手由手掌、手腕、一個(gè)大拇指以及四個(gè)相鄰的手指組成，它們由關(guān)節(jié)相互連接著。在手的運(yùn)動(dòng)過(guò)程中只有微小的形狀變化，因此在手模型中我們將其簡(jiǎn)化成剛體。除拇指僅有兩節(jié)指骨外，其余各指都有三節(jié)指骨，分別稱為近指骨、中指骨和遠(yuǎn)指骨手的幾何模型可用于生成圖形及判斷手是否與虛擬對(duì)象接觸或碰撞Thehandiscomposedofapalm,awrist,athumbandfouradjacentfingers,whichareconnectedbyjoints.Inthemotionofthehand,thereisonlyasmallchangeinshape,sowecansimplifyitintoarigidbodyinthehandmodel.Onlytwofingersexceptthethumb,therestthathasthreephalanx,calledthegeometricmodelofproximalphalanx,middlephalanxphalanxandfarhandcanbeusedtogenerategraphicsandjudgethehandisincontactwiththevirtualobjectorcollision中指骨近堿事.膏根據(jù)對(duì)人手的運(yùn)動(dòng)特點(diǎn)以及外形特征，本模型計(jì)劃采用橢球形單元組成這種模型結(jié)構(gòu)模型表面相對(duì)光滑，可伸展性強(qiáng)，適用于虛擬手的實(shí)時(shí)變化。一個(gè)橢球形單元由三條軸線控制，表面光滑，尤其對(duì)于手掌不規(guī)則的弧形表面。虛擬手運(yùn)動(dòng)的時(shí)候只需要改變相應(yīng)橢球形單元的三條軸線的位置和方向即可。Accordingtothecharacteristicsofthemotionandtheshapeofthehand,themodelisplannedtoformarelativelysmoothsurfaceofthemodelstructuremodel,whichcanbeusedfortherealtimechangeofthevirtualhand.Anellipsoidalelementiscontrolledbythreeaxes,andthesurfaceissmooth,especiallyfortheirregularcurvedsurfaceofthepalm.Thepositionanddirectionofthethreeaxisofthecorrespondingellipsoidalelementcanbechangedonlywhenthevirtualhandmovementischanged.結(jié)果:resultshowsthatthemodulecanimplementthemotionmappingfromhumanhandtovirtualhanda