Interactive Support of Maintenance - SAE International · © 2003 Carnegie Mellon University...
Transcript of Interactive Support of Maintenance - SAE International · © 2003 Carnegie Mellon University...
1Interactive Support of Maintenance© 2003 Carnegie Mellon University
Interactive Support of Interactive Support of MaintenanceMaintenance
Prof. Prof. Asim Smailagic Asim Smailagic Carnegie Mellon UniversityCarnegie Mellon University
ICES and ECEICES and ECEasimasim@@cscs..cmucmu..eduedu
28 October 200328 October 2003
2Interactive Support of Maintenance© 2003 Carnegie Mellon University
Overview
IntroductionCMU Wearable ComputersInteractive Electronic Technical Manuals (IETMs)Real-time Collaboration with a Remote Expert HelpdeskContext-Aware MaintenanceField Experience and EvaluationSummary and Future Directions
4Interactive Support of Maintenance© 2003 Carnegie Mellon University = IDA Award Winner
Family Tree of CMU Wearable Computers(by Operational Delivery Dates and Application Areas)
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TIA-PNavigator 2VuMan 3
SpotMoCCA
Wearable and Handheld Computers
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Overall Objectives
Provide performance enhancing systems (PESs) for Front Line Workers» Integration of enterprise information presented in
worker’s context» Employ user-centered development approach
Assist sponsors in addressing important operational issues» Historic Carnegie Mellon/Boeing work: aircraft
wiring manufacture, KC-135 inspections, F-15 depot overhaul, F/A-18 maintenance
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MAINTENANCE MANAGEMENT
TECHNICAL DATA
ERP / Maintenance Management System
Engineering Systems
Document Production and Management System
(Authoring)
Incremental DistributionSystem
ERP / Maintenance Management System
Document Display System
Feedback / Help System
Application Integration
Application Integration
Mobile Worker interacting withVehicle Data
MANUFACTURER OPERATIONS
Enterprise Concept of Objectives
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User’s Major Concerns
Accurate and updated technical informationBeing able to get help (contact others easily)Controlling sign-on/offsEnabling improved collaboration with co-workersFlexibility to start/stop task and know where you are and what’s nextHaving information access with their hands freeInterfacing to legacy systems they must use, e.g., parts orderingPrivacy about own training/work performanceReliability and durability of hardware/computersSeeing evidence that on-line access to documents is more efficient than paper
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Issues in Wearable Computing
We identified four design principles for mobile systems:User interface models
» What is the appropriate set of metaphors for providing mobile access to information?
Input/output modalities» Room for new, easy-to-use input devices such as the CMU
dial.Matched capabilities with application requirements
» Interface design and evaluation should focus on the most effective means for information access.
Quick interface evaluation methodology» Human computer interface evaluation results should be
available for iterative system design and prototyping.
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Four User Interface Models
Each model with their unique user interface, input/output modality, and capability.»Procedures – Text and Graphics»Master/Apprentice Help Desk»Team Maintenance/Collaboration»Context Aware Collaboration – Proactive
Synthetic Assistant
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Year
Inspection-Text
Inspection-Graphics
Master / ApprenticeLanguage Translation
Team Maintenance
Context-Aware Maintenance
20011997
19961995
1993
VuMan 3
Navigator 2
TIA-P
MoCCA
GM/CMU
Chronology
VuMan 3
TIA-P
MoCCA
Navigator 2
Application
GM/CMU Companion
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Output
InputRe
pres
enta
tion
PicturesSpeech Synthesis
BitmapText
Contextual InformationArchival Data
SpeechMouse
Keyboard
Alphanumeric
GUI
Multimedia
Group Collaboration
Proactive, Context Appropriate
3D Animation
User Interface - Control and Rendering
Inspection-Text
Inspection-Graphics
Master / ApprenticeLanguage Translation
Team Maintenance
Context-Aware Maintenance
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-“Remote” Synthetic Helper- Reading procedure and
answering questions- Frequently asked questions –
synthetic interview- Context Aware Synthetic Expert
- Location specific information- Schedule- Provide advice based on
cognitive model- overload- cycling
Proactive Assistant
- Where is the object?- Shared whiteboard with picture
- How to do it- Audio- Pointer on shared whiteboard
- What does result of test mean?- Shared document scrolling
- Availability- Contact state (available, busy, off-duty)- Mode (pager, phone, whiteboard)Reference
a Human Expert
Synchronous
- Where is the object?- Shared to-do list
- How to do it- Audio BBoards- Tips
- What does result of test mean?- Audio BBoards- Tips
Asynchronous
-Select region-Maintain object-Store observations-Reference information-Record status
Static/Prestored Procedures
State Diagram for Problem Solving Capabilities
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Procedures – Text and Graphics
Procedures. Maintenance and plant operation applications are characterized by a large volume of information that varies slowly.
» For example even simple aircraft may have over 100,000 manual pages.
» One leading manufacturer produces over 70,000 trucks per year, representing over 20,000 different configurations.
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.
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Master/Apprentice Help DeskThere are times when one individual requires assistance from experienced personnel.Example of this is the “Help Desk” wherein an experienced person is contacted for audio and visual assistance.
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Master / Apprentice (Live Expert) Help Desk
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Integrated Technical Informationfor the
Air Logistics Centers (ITI-ALC)
Integrated Technical Informationfor the
Air Logistics Centers (ITI-ALC)
Technology DemonstrationTechnology DemonstrationTechnology Demonstration
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ITIITI--ALC TechnologyALC TechnologyDemonstration Demonstration
ArchitectureArchitecture
InspectorInspectorPentiumPentiumLaptopLaptop
InspectionInspection
CollaborationCollaborationOracleOracleDBDB
WindowsWindowsNT ServerNT Server
MechanicMechanic
Wireless LANWireless LAN
Engineer’sEngineer’sWorkstationWorkstation