The Integrated Diagnostic System (IDS): Remote Monitoring and Decision Support for Commercial Aircraft - Putting Theory into Practice - PowerPoint PPT Presentation

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The Integrated Diagnostic System (IDS): Remote Monitoring and Decision Support for Commercial Aircraft - Putting Theory into Practice

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Remote Monitoring and Decision Support for Commercial Aircraft - Putting Theory into Practice ... year 2000. Practical Considerations. R & D goals/balance ... – PowerPoint PPT presentation

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Title: The Integrated Diagnostic System (IDS): Remote Monitoring and Decision Support for Commercial Aircraft - Putting Theory into Practice


1
The Integrated Diagnostic System (IDS) Remote
Monitoring and Decision Support for Commercial
Aircraft - Putting Theory into Practice
  • Michael Halasz, Bob Orchard, François Dubé - NRC
    Robert Ferland - Air Canada
  • 1999 AAAI Spring Symposium on AI in Equipment
    Maintenance Service and Support
  • Stanford University, California
  • March 23, 1999

2
Overview
  • motivation
  • benefits
  • airline operational environment
  • IDS
  • practical considerations

3
Vision - from data to decisions
...to make optimum use of available data,
information, and knowledge across the
organization to improve engine maintenance and
troubleshooting ...July 1992
automated reasoning
4
Motivation
  • need for systems that help in time critical,
    accurate, and consistent decision making
  • tools to integrate and interpret
  • volumes of useful data provided by new generation
    equipment
  • organizations diverse and distributed
    information assets
  • right data, knowledge and expertise at right time
    necessary to optimize maintenance mission -
    distributed
  • unscheduled maintenance is persistent

more with less but maximize equipment
utilization
5
Motivation
source Statistics Canada 1996
6
What can innovative IT do?

maintenance budget
5 - 8
7
Focus Line Technician
  • aircraft at gate
  • passenger offload
  • snag recognition
  • consult MEL
  • consult TSM
  • consult aircraft history
  • carry out test (BITE)
  • fault isolation (TSM)
  • parts required?
  • order parts
  • rectification (AMM)
  • certification

35 minutes
8
Troubleshooting
engineering
field rep.
maintenance control centre
manuals
parts
  • results
  • flight cancellation
  • unhappy customers
  • lost

line / ramp
9
IDS Concept
10
Functional Architecture
11
Simple Example
Time Phase Event Description 130412 take-off NAV
130834 cruise WRN ENG 2 OVSPD PROT
FAULT 130835 cruise FLR HMU (OSG),
J7//EIU2FAD 130914 cruise WRN ENG 2 COMPRESSOR
VANE 131008 cruise FLR VBV ACT, HMU
ENG2A//EIUFADEC 131950 cruise WRN SFCS 132056
cruise FLR FLP LH PROX SNSR 1 37 CVOR LGCIU
1//SFCC 1 132228 cruise FLR L FLP DISC PROX
SNSR 37CV // LGCIU 1 132241 cruise SNG ENG 2
COMP VANE OCCURRED AS PWR ADV TO CLB PWR THRU
17000 FT. 134101 cruise ECR ENGINE CRUISE
REPORT 134221 cruise CPR CRUISE PERFORMANCE
REPORT 134802 cruise FLR ILS-2 NO DATA FROM
CONTROL SOURCE // ILS 2 134808 cruise FLR AFSFM
GC2 //AFS,RMP1,2OR3 134827 cruise FLR AFSILS2
// AFS 135550 cruise FLR DME-1 TRANSCEIVER //
DME 1 135901 cruise ECR ENGINE CRUISE
REPORT 140157 cruise FLR DMC2NO FQI2 DATA //
EIS 2, EIS 1, EIS 3 143723 cruise FLR AFSADIRU1
/2/3 DISAGREE // AFS 1447 cruise snag SEAT COVER
AT 3F NEEDS TO BE CHANGED-COVER
CHANGED 150034 cruise WRN NAV ALTI
DISCREPANCY 150854 cruise FLR CHECK VHF-1
ANTENNA CIRCUIT // VHF 1 152131 at
gate MPF MAINTENANCE POST FLIGHT
REPORT 2252 snag REPLACED MASTER BALLSCREW
ACTUATOR FLEX DRIVESPACER, ENG RUN CARRIED
OUT,ACFT CHECKS SERV
symptom cluster
performance reports
repair
12
Practical Considerations
  • General
  • get right into business justification
  • understand end users problems/world
  • find appropriate champions (upper management
    technical staff)
  • expect many organizational changes
  • iterate frequently with users
  • control expectation
  • users dont easily express wants/needs

13
Practical Considerations
  • Technology transfer
  • new technologies (AI, OO, )
  • infrastructure to deliver distributed real time
    application
  • electronic manual access
  • legacy system links
  • minimal changes to business practices
  • active user participation
  • year 2000

14
Practical Considerations
  • R D goals/balance
  • evolutionary process (resist throw away approach)
  • be prepared to make significant leap of faith
    commitment up front until idea catches on
  • impact of unresolved issues such as
  • automatic case creation (limited access to
    personnel)
  • unsupervised learning techniques (failure
    prediction)

15
Current Status
  • prototype (v2.11) operating at Montreal and
    Ottawa (4 sites) since Nov 96
  • IDS v3.0 (distributed, component based)
  • Air Canada infrastructure issues development
  • extend to other aircraft (currently A320/319)
  • soliciting requests from companies to fulfill
    service provision roles
  • Aerospace DAta Miner (ADAM) encouraging results,
    gt 4 yrs operational data

16
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