A Research on Development in Fault Diagnosis System Of Spacecraft

Yang Hong
Fax: +86 010 8378463
CAST China

Abstract:
Fault diagnoses SYSTCIT, (FDS) is of great importance in
monitoring and controlling spacecraft in the ground control
center.  However there are still some problems  remained
unsolved in effectiveness and availability of the system.

The paper introduces a new technology in development of FDS
aiming at these problems.
  * Technology in development of FDS of overall spacecraft
in system level.
  * Change, in the traditional building method of expert
system based on knowledgable engineers, The design procedure
of the spacecraft are combined with development of FDS,
thus producing a new building method on the basis of the
system designer of the spacecraft, and optimal arrangement
on the telemetry point is created.
  * Combination of design technology of FDS in the objected
-oriented way and reliability design and analysis of
spacecraft, creating generalised fault tree conception for
knowledge collection and expression, thus solving the
main problem in knowledge collection.
  * Discussion   on  transformation from prototype, to
practical system by development tools.
  * research on a real time and on-line FDS.

All these achievements have been generally verified with
the tests. The latest FDS will be first used in spacecraft
assembly and test before applied to operation management.

The new technology is of great help to the improvement of
FDS effectiveness and availability.