Embedded fault injection system and its method

A fault injection and embedded technology, which is applied in the fields of instrumentation, electronic digital data processing, calculation, etc., can solve the problems of inability to test and evaluate the reliability of computer systems, and achieve diversified fault models, timely result recovery, and high injection security Effect
CN1945547AInactive Publication Date: 2007-04-11HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2007-04-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

A fault injection system of embedding type and method relates to the technology of testing and evaluating the redundant computer system, which can overcome the problem that the existing technology can not test and evaluate the reliability of computer system correctly and accurately. Its control computer (1) connects with CPLD circuit (2), main control FPGA circuit (3) and synchronous control FPGA circuit (4), injection control FPGA circuit (5), direction control FPGA circuit (6), 80 * 86 processor pin (7), 80 * 86 processor socket (8) through ISA bus / serial data conversion. The steps are: (a) starting the system, (b) initializing and auto-examining, (c) transmitting the parameters of fault model, (d) setting the initial value of flip-latch, (e) the direction control FPGA circuit (6) sets the direction, (f) the synchronous control FPGA circuit (4) sets the synchronous data, (g) the injection control FPGA circuit (5) set the injection data, (h) recording results, (i) displaying results.
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Description

technical field

[0001] The invention relates to the technical field of testing and evaluating fault-tolerant computer systems. Background technique

[0002] Military computer systems (such as vehicle-mounted, airborne, and ship-mounted computers) are used in harsh environments, which can easily lead to computer system failures; in the design and production of computer systems, processes, raw materials, and processing technologies may also cause computer failures. There are latent faults in the system, and the complexity of computer systems is increasing day by day. In the design of computer systems, especially in software design, there will also be many potential faults, as well as the destruction of the enemy and human errors, which will also cause The reliability of computer systems is facing a severe test, and these failures may cause errors, resulting in reduced efficiency or even failure of computer systems. In order to improve the reliability and anti-interference abi...

Claims

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