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Wearable Computer Architecture and Applications

Wearable Computer Architecture and Applications. Daniel P. Siewiorek Carnegie Mellon University October 30, 2001. Boeing. Five Generations of Wearable Computers. Navigator 2 used for aircraft maintenance. VuMan 1. Navigator 1. VuMan 2. Left, a look through the head mounted display.

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Wearable Computer Architecture and Applications

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  1. Wearable Computer Architecture and Applications Daniel P. Siewiorek Carnegie Mellon University October 30, 2001 Boeing

  2. Five Generations of Wearable Computers Navigator 2 used for aircraft maintenance VuMan 1 Navigator 1 VuMan 2 Left, a look through the head mounted display. The user not only sees the aircraft maintenance interface, but also their work environment. VuMan 3 Navigator 2

  3. Wearable Applications and Architecture • Procedures - upload at completion • Work Orders - incremental updates • Collaboration - real time interaction • Client-Server • Thin Client Legacy Systems • Interactive Electronic Technical Manuals (IETMs)

  4. Time Rate of Change of Data Taxonomy • Procedures. Maintenance and plant operation applications are characterized by a large volume of information that varies slowly over time. • A typical request consists of approximately ten pages of text and schematic drawings. Changes to the centralized information base can occur on a weekly basis.

  5. Savings Using Tactical Information Assistants in Marine Heavy Vehicle Maintenance SAVINGS FACTOR VuMan 3 Field Trials Current Practice Personnel 2:1 SAVINGS FACTOR Current Practice VuMan 3 Field Trials Inspection time 40% less

  6. Four Month Design Cycle Story Boards Prototype System Mock-up System Final System Initial visit 0 1 2 3 4 Month

  7. Time Rate of Change of Data Taxonomy (continued) • Work Orders. The trend is towards more customization in systems. • Manufacturing or maintenance personnel receive a job list that describes the tasks and includes text and schematic documentation. This information can change on a daily or even hourly basis.

  8. User Interface Screen

  9. Time Rate of Change of Data Taxonomy (continued) • Collaboration. An individual often requires assistance. In a “Help Desk” an experienced person is contacted for audio and visual assistance. The Help Desk can service many people simultaneously. • Information can change on a minute-by-minute and sometimes even a second-by-second basis.

  10. Integrated Technical Information for the Air Logistics Centers (ITI-ALC) Technology Demonstration

  11. F-15 Depot maintenance

  12. Problem • Outdated, cumbersome maintenance information capability • Paper-based products • Independent, uncoordinated computer information systems

  13. ITI-ALC Technology Demonstration Architecture Inspection PentiumLaptop Inspector Wireless LAN WindowsNT Server Collaboration Oracle DB Engineer’s Workstation Mechanic

  14. Evaluation & Inventory Current ITI-ALC 1. Login 1. Select aircraft 2. Select region 3. Pick-up 173’s 4. Check freq. defect list 5. Get tools 6. Conduct inspection 7. Check-off defect list 8. Stamp 173’s 9. Write up new defects 10. Access parts info. 11. Access TO’s 12. Access HowMal codes 13. Write new defects in U-book 14. Stamp U-book 15. Enter data into database 4. Record Defects 2. Hangar 5. Add New Defect 3. 173 List 6. Submit Defects 4. 173 Signoff 7. Defect History 5. 173 History

  15. 1. Login Screen 2. Hangar Screen 3. Form 202A 4. Confirmation Screen Engineering Assistance Current ITI-ALC 1. Mechanic finds skin defect 2. Mechanic obtains Form 202 3. Fills in fields of Form 202A 4. Views tech. data 5. Makes a rough sketch 6. Form to Scheduler 7. Form to Planner 8. Form to Engineering 9. Engineer reviews Form 202A 10. Engineer researches problem 11. Engineer goes to hangar for visual 12. Engineer fills in Form 202B 13. Reverse routing/logging above 14. Mechanic reads 202B 15. Mechanic is ready to enact repair 3a.Parts Screen 3b. Take Picture 3c. Sketch Tool 3d. Sound Tool 1. ELogin 2. 202B Selection Screen 3. Form 202B 4. Confirmation Screen

  16. IETM Authoring Wearable PC Runs Inmedius Web-based IETM Software Incremental Distribution Web Runtime Authoring database schema incremental updates Server Web Browser incremental updates Web Server database schema IETM Engine incremental updates Client database schema IETM Authoring/Maint. Organizations F/A-18 Fleet Support Organization Fleet Operating Sites

  17. IETM Display by Mobile Computer - IBM Concept Model is an Example • ThinkPad 560X Equivalent High Spec • Full Function Portable PC in IBM High Density Package • Ultimate Portability • Headphone Stereo Size System Unit, 2/3lbs (299g) • IBM MicroDrive • 1" Disk, 5mm Thickness, 20g, 340 MB Capacity • Transparent Head Mount Display • Invented by IBM T.J. Watson Research

  18. F-18 Inspection Application: Production vest fits under “Float Coat”

  19. 11 Mbs wireless LAN connects Wearable Computer to server

  20. Selection of “hot links” with CMU’s Wheel/Pointer

  21. Wireless and Handheld Andrew

  22. Wireless Campus as of June 2000 300+ basestations Academic andAdministrative Buildings Residence Halls, Parking, etc

  23. Aura Thesis The most precious resource in computing is human attention • Aura Goals • reduce user distraction • trade-off plentiful resources of Moore’s law for human attention • achieve thisscalably for mobile users in a failure-prone, variable-resource environment

  24. Context Aware Computing • Applications that use context to provide task-relevant information and/or services • Context is any information that can be used to characterize the situation of an entity (person, place, or physical or computational object) • Contextual sensing, adaptation, resource discovery, and augmentation • Examples of Context Aware applications • Matchmaking • Proactive assistant

  25. Example Agents • Notification Agent • Alert a user if they are passing within a certain distance of a task on their to do list. • Meeting Reminder Agent • Alerts a user if they are in danger of missing a meeting. • Activity Recommendation Agent • Recommends possible activities/meetings that a user might like to attend based on their interests.

  26. Context Aware Computing Platform: The Spot Architecture

  27. Spot Wearable Computer

  28. Belt Worn Spot and Head Mounted Display

  29. Research Challenges • User interface models—new application metaphors require experimentation • Input/output modalities—accuracy and ease of use • Quick Interface Evaluation Methodology—to use during design • Match capability with application—resist “highest performance” temptation

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