Accession Number : ADA189863

Title :   Hardware Fault Insertion and Instrumentation System: Experimentation and Results.

Descriptive Note : Contractor rept.,

Corporate Author : LOCKHEED-GEORGIA CO MARIETTA

Personal Author(s) : Benson, J W ; Mulcare, D B ; Larson, W E

PDF Url : ADA189863

Report Date : Mar 1987

Pagination or Media Count : 80

Abstract : This report describes the motivation, conduct, and analysis of some 2500 low-level hardware fault cases applied in automated testing at the NASA Ames Reconfigurable Digital Flight Control System (RDFCS) Facility. Fault detection was correlated with hardware and software fault monitoring, and in limited cases, with sensitivity to flight program execution modes. Results obtained have been statistically assessed to ascertain system-level reliability implications based on a model that is described herein. The overall methodology/facility itself has been critiqued and found to constitute a promising enhancement to current practice. Keywords include: Automated testing, Digital flight controls, Fault coverage, Fault latency, Fault modeling, Hardware Faults, Monitors, Statistical fault data.

Descriptors :   *AUTOMATION, *FLIGHT CONTROL SYSTEMS, *FAULTS, *TEST METHODS, *DIGITAL COMPUTERS, TEST AND EVALUATION, DIGITAL SYSTEMS, MODELS, METHODOLOGY, DETECTION, FLIGHT, INSTRUMENTATION, MONITORS, COMPUTER PROGRAMS, AVIONICS, COMPARATORS, REAL TIME, PINS, CHIPS(ELECTRONICS), SEQUENCES, INJECTION, RELIABILITY(ELECTRONICS), STATISTICAL DATA

Subject Categories : Flight Control and Instrumentation
      Computer Hardware
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE