Wearable ComputingOutlinesWearable vs. UbiquitousComplimentary DualityMotivationSlide 6Hardware FeaturesApplication FeaturesBig PictureI/O InterfaceVisualExample: Eyeglass DisplayAudioSpeech InteractionSlide 15Communication RequirementFar-field vs. Near-field CommunicationLocal Communication ExamplesSlide 19Power RequirementSlide 21Heat DispensingSlide 23Application Examples: Miniature Head-up DisplaysApplication Examples: CharmIT Wearable ComputerWearable Computer DefinitionsSlide 27Human-Computer EvolutionSlide 29Current State of the IndustrySlide 31Application AreasExamplesSlide 34Slide 35TrendsTrendsSlide 38Challenges for the Wearable PCResourcesWearable ComputingWearable ComputingCMSC 466/666CMSC 466/666UMBCUMBC05/0405/04OutlinesOutlinesOverviewOverviewWearable vs. UbiquitousWearable vs. UbiquitousMotivationMotivationI/O Interface, Communication, Power, HeatI/O Interface, Communication, Power, HeatApplicationsApplicationsDefinitionsDefinitionsCurrent State of the IndustryCurrent State of the IndustryTrends and LimitationsTrends and LimitationsResourcesResourcesWearable vs. UbiquitousWearable vs. UbiquitousWearable computing: Wearable computing: Computers/sensors on Computers/sensors on peoplepeopleUbiquitous computingUbiquitous computingComputer/sensors embedded in the Computer/sensors embedded in the environmentenvironmentComplimentaryComplimentaryComplimentary DualityComplimentary DualityWearable: Know more about Wearable: Know more about personspersonsprivacy, authentication, and security personalized informationUbiquitous: Know more about Ubiquitous: Know more about environmentenvironmentlocal environment information local environment control resource managementMotivationMotivationWhy do we want/need wearable computers?Why do we want/need wearable computers?To communicateTo communicateto know to know things you CARE aboutthings you CARE about whenever you can whenever you canTo organize/rememberTo organize/rememberto get a hold of the to get a hold of the reality for the BUSYreality for the BUSY people peopleTo get information that we don’t know here nowTo get information that we don’t know here nowI don’t know it but I can get it I don’t know it but I can get it right NOW right right NOW right HEREHEREAs a life style or fashion statementAs a life style or fashion statementI’m I’m coolcool because I’m technologically up-to-datebecause I’m technologically up-to-dateMotivationMotivationWhat do we want from a wearable What do we want from a wearable computer?computer?Physical/Hardware FeaturesPhysical/Hardware FeaturesApplication/Software FeaturesApplication/Software FeaturesHardware FeaturesHardware Featureslight-weight (small)light-weight (small)durabledurablecomfortablecomfortablelong battery lifetimelong battery lifetimeeasy to useeasy to useaffordableaffordablecool (invisible, hidden, disappearing)cool (invisible, hidden, disappearing)Application FeaturesApplication Featuresperson-to-person person-to-person communicationcommunicationpersonal organization/personal organization/remembranceremembrance aidaidcontextcontext awareness awarenesseffortlesseffortless usage usage natural, intuitivenatural, intuitiveBig PictureBig PictureApplicationI/OCommunicationHeat PowerI/O InterfaceI/O InterfaceVisualVisualAudioAudioVisualVisualInputInputcomputer visioncomputer visionOutputOutputoverlaying thingsoverlaying thingsExample: Eyeglass Example: Eyeglass DisplayDisplayHuman factors studiesHuman factors studieshealth and safetyhealth and safetysocial acceptancesocial acceptanceConcentrating on bi-Concentrating on bi-ocular displaysocular displaysfor viewing 2D text and for viewing 2D text and imagesimagesAudioAudioInputInputspeech recognitionspeech recognitionbackground noise separationbackground noise separationspeaker identity (voice fingerprint)speaker identity (voice fingerprint)OutputOutputspeech synthesisspeech synthesisSpeech InteractionSpeech InteractionSpeech-driven user Speech-driven user interfacesinterfaceslarge vocabulary recognition large vocabulary recognition (Cambridge University)(Cambridge University)dialog for interfaces (MIT)dialog for interfaces (MIT)Speech as data Speech as data efficient codingefficient codingword spottingword spottingBig PictureBig PictureApplicationI/OCommunicationHeat PowerCommunication Communication RequirementRequirementSecuritySecurityshort range -> low probability of short range -> low probability of leakingleakingEnergyEnergylow frequency -> low powerlow frequency -> low powerFar-field vs. Near-field Far-field vs. Near-field CommunicationCommunicationexamplesexamplesradio vs. bluetooth (kind of)radio vs. bluetooth (kind of)signal strengthsignal strength1/d1/d2 2 vs. 1/dvs. 1/d33carrier requirement for devices size carrier requirement for devices size of a watch or credit cardof a watch or credit cardgigahertz vs. 0.1 to 1 megahertzgigahertz vs. 0.1 to 1 megahertzLocal Communication Local Communication ExamplesExamplesTransfer data between:Transfer data between:wearable and handheldwearable and handheldwearable and desktopwearable and desktopwearable and environmentwearable and environmentBig PictureBig PictureApplicationI/OCommunicationHeat PowerPower RequirementPower RequirementThe traditional bigger ones: 5 WThe traditional bigger ones: 5 Whead mount display, 2GB hard disk, 133 head mount display, 2GB hard disk, 133 MHz Pentium, 20 MB RAMMHz Pentium, 20 MB RAMThe improved smaller ones: 0.7 WThe improved smaller ones: 0.7 WMicroOpticMicroOpticTMTM eye-glass display, Flash eye-glass display, Flash memory (.5 GB), StrongArm microprocessor memory (.5 GB), StrongArm microprocessor (.3 W at 115 MIPs)(.3 W at 115 MIPs)without communicationwithout communicationMust come with the person wearing Must come with the person wearing the devicesthe devicesBig PictureBig PictureApplicationI/OCommunicationHeat PowerHeat DispensingHeat Dispensingrequirementrequirement-15 -15 intolerably coldintolerably cold15 - 34 15 - 34 OKOK34 - 39 34 - 39 hothot39 - 43 39 - 43 pain pain 43 - 43 - tissue damagetissue damageBig PictureBig PictureApplicationI/OCommunicationHeat PowerApplication Examples:Application Examples:Miniature Head-up Displays Miniature Head-up