Enabling Cluster Based Architecture for Virtual Platforms and Sensor Webs

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$600,000.00
Award Year:
2002
Program:
SBIR
Phase:
Phase II
Contract:
NAS5-02122
Agency Tracking Number:
013844
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
WW Technology Group
4519 Mustering Drum, Ellicott City, MD, 21042
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Chris Walter
Principal Investigator
(410) 418-4353
cwalter@wwtechnology.com
Business Contact:
Chris Walter
Business Official
(410) 418-4353
cwalter@wwtechnology.com
Research Institution:
n/a
Abstract
Distributed spacecraft systems with enhanced formation flying (EFF) technology for onboard constellation and formation control will enable large numbers of spacecraft to be managed with a minimum of ground support. EFF facilitates a ?virtual platform? concept which lowers total mission risk, increases science data collection and adds considerable mission flexibility. The requirement to act as a unified information system places requirements on the system architecture that go above an beyond what is required for traditional systems. We propose a software based infrastructure that facilitates dependable formation and operation of distributed real-time control systems with several innovations that advance the state of the art in distributed systems technology and sensor webs. These innovations include: 1) cold start algorithms that allow for autonomous, dependable system organization and formation, 2) distributed on-line configuration control, monitoring and health assessment processes that operate in concert across the entire system allowing for coordinated system operation, 3) a multi-level scheduling approach that allows for distributed control elements to be responsive to local events and to participate in system wide coordinated operations and 4) a robust fault/error model that accounts for arbitrary fault/error cases and anomalies, thereby providing superior fault tolerance, particularly for Single event Upsets (SEUs).

* information listed above is at the time of submission.

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