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Distributed Multi-Agent Fault Diagnosis and Reconfiguration Control

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2007 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Qualtech Systems, Inc.
99 East River Drive East Hartford, CT 06108-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2007
Title: Distributed Multi-Agent Fault Diagnosis and Reconfiguration Control
Agency: NASA
Contract: NNX07CA36P
Award Amount: $99,712.00


In order to meet the challenges of long-duration space exploration (e.g., missions to the Moon, Mars and beyond), onboard real-time health management of spacecraft that responds rapidly to system and subsystem events is essential. In response to this need, Qualtech Systems, Inc. (QSI), in cooperation with Vanderbilt University, proposes to develop a distributed multi-agent fault diagnosis and reconfiguration control (FDR) approach for addressing the health management problem. The proposed solution uses "intelligent" schemes to coordinate local health assessments of multiple interconnected subsystems ("local diagnosers") to a convergent and correct global system health assessment. In addition, the solution recommends relevant system recovery functions based on fault isolation information and fault severity estimates. Design of local diagnosers for subsystem health assessment utilizes a combination of both model-based and data-driven diagnostic methods in an integrated development environment for accurate root cause isolation.

Principal Investigator:

Dr. Sudipto E. Ghoshal
Principal Investigator

Business Contact:

Chakrapani P. Vallurupalli
Business Official
Small Business Information at Submission:

Qualtech Systems, Inc.
100 Great Meadow Road, Suite 603 Wethersfield, CT 06109

EIN/Tax ID: 061370324
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Vanderbilt University
Division of Sponsored Research, 110 21st Avenue South
Nashville, TN 37203-2641
Contact Phone: (615) 322-3979
RI Type: Nonprofit college or university