wearable computer

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2. POINTS TO BE DISCUSSED INTRODUCTION OPERATIONAL MODES XYBERNAUT NETWORKING AND OPERATING SYSTEM COMPONENT PIECES OUTLOOK AGENTS RECOGNISING EFFECT APPLICATIONS FUTURE RESEARCH CONCLUSION 21/3/20072 3. INTRODUCTION A wearable computer is a small portable computer that is designed to beworn on the body during use. Wearable computers are usually either integrated into the users clothingor can be attached to the body through some other means , like awristband. The computer evolution has moved from mainframes, to the desktop, andnow the computing power is moving onto the person. The user actually "wearing" the computer, s/he can utilize the power andfunctionality virtually anywhere in their environment. This technology is developing and changing rapidly primarily due to vastchanges in computer speed, wireless technology and miniaturization ofcomponents. 21/3/2007 3 4. Operational Modes of Wearable Computer Constancy Augmentation Mediation 21/3/2007 4 5. Xybernaut: A CurrentCommercially Available WearableSystem21/3/2007 5 6. Networking and Operating System The goal of wearable/interactive computers isto network all components through oneoperating system. There are two competing operating systems,Sun Microsystems Jini and MicrosoftWindows CE ("Compact Edition"). Sunapparently seesallappliances /components networked throughJava/Jini interface, while MS seems to betaking the more traditional personal computer interface approach in connectingappliances to the network.21/3/2007 6 Far Field and Near field Communication. 7. Wearable Computer Component Pieces Camera OneHandedKeyboard 21/3/2007 7 8. Customclothing Monitor 21/3/2007 8 9. Input deviceHANDTYPINGW r IST DEVICEFINGERMOUSE 21/3/2007 9 10. Positioning System Battery Power PC-104 based 50 MHz 486 computer,16MRAM,1G hard disk. Bio-Sensors Sound board and Video board CRT or LCD display Extra disk capacity21/3/200710 11. Outlook of Wearable Computer 21/3/2007 11 12. Agents A premise of a wearable computer is that the computer can learn andbecome customized to the users needs, based upon the task the user isinvolved with. If the user is viewing a document, the Wearable Computermay suggest an associated email, showing minimal information such as thesubject, sender, date, or what ever information the user would want to viewto get a sense as to decide whether the entire email should be retrieved. Humans are poor at data retrieval, and a complex hierarchical directoryquickly breaks down when the human user loses the thread of where theitem being searched for resides. A computer remembrance agent can takecues from this environment to assist in locating appropriate files frommemory, picking up on cues like where the user is, is the user alone or withsomeone , what is the user doing at that time, etc., all can be used tosearch and locate appropriate files that may be relevant to the user atthat time. In this manner the computer is a continual presence, alwayslooking over the shoulder of the user. For example, at a staff meeting theWearable Computer can assist in remembering names of attendees, whowas at the meeting prior, what they said at that time, what was on theagenda, and also to suggest topics which might be of relevance to what wasgoing. The computer is always active in searching the users own personaldata base for information which might prove useful within the context of thecurrent task the user is performing.21/3/200712 13. Recognizing Affect Our emotions play a significant role in our every day life, and up to now, thishad been unrepresented within human computer interfaces. Human vital signs such as blood pressure , temperature, galvanic skin response,foot pressure and electromyograms can be tracked and monitored throughthe use of body sensors connected into the wearable computer. In thismanner, the computer becomes physically connected to the user and canlearn to recognize physiological states . By this monitoring of body vitalsigns and learning how the user reacts when in different feeling andmood states, the computer can take action accordingly. Forexample, if the user likes to hear a certain type of music at one time andanother during a different mood state, the computer can plan on providingthis to the user at the appropriate times. The affective sensors could also be of assistance in medical monitoringwhere important health data might be tracked and reported directly to theusers physician. They list four bio-sensors used in a current prototypeaffective wearable system: measuring respiration , skin conductivity, bloodvolume pressure and electromyogram, all of which the sensors canmonitor painlessly from the surface of the skin. These four sensors aremonitored via a Linux operating system, and can be sampled up to 20times per second. Affective computing employs its own intelligent agentwhich can make decisions based upon analysis of the incomingenvironmental and physiological sense data.21/3/200713 14. Applications Smart Wallet Worker Training and Worker Support 21/3/2007 14 15. Military 21/3/2007 15 16. Handicapped21/3/2007 16 17. Future ResearchFuture research and development issues include the following: Ergonomic research - best method to utilize components, e.g. -the head set such that it is comfortable and is helping and notdistracting the user from the task. There needs to be more lightweight efficient and easily powered computer apparatus whichis comfortable to wear. In terms of Network using the body as the networks medium, toincrease the speed at which they can run also to increase tobps speed of data transfer . 21/3/200717 18. ConclusionLot of research and experiments for practical & tacticaluse of Wearable Computer are going on around the world.Several types of Wearable Computers are indeedcommercially available, but as of now most of them aretailor made for specific applications. It is only a matter oftime before the consumer community accepts the idea. Theshift that the Wearable Computers will bring;computer workingalong with you instead of you working at the computer.Thoughthe wearable has not seen the widespread acceptance givento the desktop, work continues in this field to meet thechallenges that inhibit its growth. Processors and sensors needto be effectively integrated into textiles; and displays, whetherhead or body mounted, need to effective under a wide rangeof lighting conditions - all of these must be comfortable to wear 21/3/2007 18 19. 21/3/2007 19


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