英语翻译
Whileusingthesimulator,theoperatorseesthe
containermovinginavirtualworld.Thevirtual
worldcombinedwiththemotionplatform,which
createsmovementeffects,givestheoperatorreal
world-likefeedback.Thesurroundingsoundsgive
thefinaltouchtothesimulatorenvironment.Besides
thevisualfeedback,thefeedbackfromthemotion
platformisveryimportantinoperatortraining.If
theoperatordoesnotfeeltheaccelerationsofthe
machinesystemcausedbycontrolmanoeuvres,the
trainingmaycauseoperatingbehaviourthatistoofastandharshasswiftoperationmovementsseem
nottocauseanyphysicalfeedback.Whenmotion
platformfeedbackisadded,theoperatingbehaviour
becomessmoother,becausediscontinuouscontrol
signalsusuallycauseaccelerationsunpleasantto
operator.
Basicallyreal-timesimulatorsconsistofauser
interface,anI/O-system,areal-timesimulation
modeldescribingthedynamicsofthemachinein
question,avisualizationoftheenvironment,anda
possiblemotionplatformproducingacceleration
effectsfortheoperator.Figure2presentsthecomponents
requiredtobuildareal-timetraining
simulator.
Controlsignalsgivenbytheoperatoraretransferred
viatheI/O-interfaceintothedynamicsimulation
model.Insimulationmodels,signalscanbe
treatedinseveraldifferentways.Simplebinaryon/
off-signalscanbeusedtolaunchoperationcycles
suchasopeningorclosingthecontainerlocking.
Analoguesignalscanbeusedtogivereference
valuesformorecomplicatedfunctions.The
rotationalvelocityreferenceofanelectricdriveis
agoodexampleoftheuseofanaloguesignals.
Duringthestudy,itbecameclearthatthemost
naturalwaytotreatanaloguecontrolsignalsisto
usethemasareferenceforthecalculationofexternal
forcesactinginthesystem.Thisway,controlsignals
seldomcausedisco
邮箱:联系方式: