|
|
|
Diagnostician Implementation on Air Force Depot Systems / TPS at SA-ALC San Antonio Air
Logistics Center contracted Giordano Automation to implement the Diagnostician
diagnostic reasoning module in support of the depot maintenance
operations. The Diagnostician was
implemented on depot repairables in support of the F-15 and the F-16 engine.
This project also involved development of in-circuit test programs on
commercial test systems in the depot. A primary objective of this program was to define and
demonstrate the feasibility of a re-engineered TPS development process
predicated upon advanced Model-Based reasoning technology. The resulting TPS
development methodology rethinks and re-engineers the traditional
test/diagnostics development process.
The result was increased test program diagnostic (i.e., fault isolation)
quality and speed of development, while reducing cost, run-time, and on-station
fault isolation verification time. This software demonstration focused on the
ability to effectively and efficiently produce a UUT's diagnostic model,
simulate faults and verify/validate diagnostic logic during the TPS design
phase, and subsequent use of the model for run-time diagnostic capability. The
approach also enables moving the verification of diagnostic logic function into
the "front-end" as opposed to the "back-end" of the TPS
development process, and nearly eliminates the need to perform physical fault
insertion to verify test program diagnostics.
We demonstrated the feasibility of a new paradigm which separates the
diagnostics, and hence fault insertion/diagnostic verification function, from
the test function. In our implementation,
diagnostic information was captured directly from schematics using our
Concurrent Engineering Tool Set (CETS).
This design related information was then translated to a Diagnostic
Knowledge Base (DKB). This DKB was then
manipulated on a PC-based diagnostic development workstation to determine
"what if" diagnostic alternatives (i.e. diagnostic resolution
implications of adding or removing a test point from a particular test
solution). The DKB was also used to
verify diagnostic capability via simulation of user-defined fault events. |
|
Send mail to webmaster@giordano.com with
questions or comments about this web site.
|
