NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Flight Computers and SequencersAt present, the most common method of increasing reliability of a system against permanent random component failures is to triplicate the entire system and use voters. This method, though it enhances the reliability, does exact a heavy toll in weight and power consumption which increase by about 225%. In the future, computers will be required to perform complex tasks
under adverse conditions on surfaces of planets for long periods of time (6 months or more), without any human intervention. At the same time there will be severe limitations on the weight and power consumption of these computers. For such systems it is obvious that simple
triple-redundancy will not do. A more efficient and sophisticated design in redundancy has to evolve. This study has been directed toward that goal. It is understood that the initial design of such a system will be too complex and expensive to be used in a commercial computer; but
for a space computer, reduction in weight (without reducing reliability) of every ounce means a great deal.
Document ID
19670014316
Acquisition Source
Legacy CDMS
Document Type
Contribution to a larger work
Authors
Narsingh Deo
(Jet Propulsion Lab La Cañada Flintridge, California, United States)
Date Acquired
August 3, 2013
Publication Date
February 28, 1967
Publication Information
Publication: Space Programs Summary: Supporting Research and Advanced Development
Publisher: Jet Propulsion Laboratory / California Institute of Technology
Volume: IV
Issue: 37-43
Issue Publication Date: January 1, 1967
Subject Category
Computers
Accession Number
67N23645
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
REDUNDANCY
COMPUTER DESIGN
SYSTEM FAILURE
Document Inquiry

Available Downloads

There are no available downloads for this record.
No Preview Available