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January 7, 2010

Mtg: Distributed System Health Management

by @ 2:59 pm. Filed under ALL, Communications, Computers/Software, Electronics Design, Engineering Mgmt, Optics/Displays, Semiconductors

MONDAY January 11, 2010
SCV Signal Processing Chapter
Speaker: Dr. Sankalita Saha, Intelligent Systems Division, NASA Ames Research Center
Time: Networking and fast food at 6:30 PM; Presentation at 7:00 PM
Cost: recommended donation of $2 for food
Place: National Semiconductor, Building E Conference Center, 2900 Semiconductor Dr., Santa Clara
RSVP: not required

As we move towards increasingly autonomous machines, it is important to understand how machines fail and if catastrophic failures can be prevented or mitigated. An important approach to tackle this problem is condition based maintenance (CBM) where various components, sub-systems and hierarchically the whole system are monitored to detect and diagnose faults and maintenance is scheduled accordingly. A key facilitating technology for this approach is prognostics, which refers to the determination of remaining useful life (RUL) of a component or a system once a fault has been detected and diagnosed.
This concept is gradually gaining importance for efficient health management of systems ranging from simple machines like gearboxes to complex components like power electronics to large-scale engineered systems like automobiles, aircraft and spacecrafts. The field of prognostics and health management (PHM) comprises multiple complex problems each replete with daunting challenges. However, recent advances in sensor technologies have given us a handle on tackling some of these problems satisfactorily. In this talk, an overview of prognostics and health management will be presented first, after which a distributed wireless sensor network based architecture for such health management systems will be discussed.

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