Distributed Multi-Agent Fault Diagnosis and Reconfiguration Control

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,712.00
Award Year:
2007
Program:
STTR
Phase:
Phase I
Contract:
NNX07CA36P
Agency Tracking Number:
060437
Solicitation Year:
2006
Solicitation Topic Code:
T1.01
Solicitation Number:
n/a
Small Business Information
Qualtech Systems, Inc.
100 Great Meadow Rd., Suite 603, Wethersfield, CT, 06109-2355
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
808837496
Principal Investigator:
Sudipto Ghoshal
Principal Investigator
(480) 752-7909
sudipto@teamqsi.com
Business Contact:
Chakrapani Vallurupalli
Business Official
(860) 257-8014
chuckv@teamqsi.com
Research Institution:
Vanderbilt University
Not Available
Division of Sponsored Research, 110 21st Avenue South
Nashville, TN, 37203
(615) 322-3979
Domestic nonprofit research organization
Abstract
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.

* information listed above is at the time of submission.

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