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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

Inactive Publication Date: 2007-04-11
HARBIN INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to overcome the problem that the prior art cannot truly and accurately test and evaluate the reliability of the computer system; furthermore, it proposes an embedded fault injection system and its method

Method used

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  • Embedded fault injection system and its method
  • Embedded fault injection system and its method
  • Embedded fault injection system and its method

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specific Embodiment approach 1

[0022] Specific embodiment one: illustrate this embodiment in conjunction with Fig. 1, the embedded fault injection system of this embodiment is by main control computer 1, ISA bus / serial port data conversion CPLD circuit 2, main control FPGA circuit 3, 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;

[0023] The ISA bus data communication end of the main control computer 1 is connected to the ISA bus data communication end of the ISA bus / serial port data conversion CPLD circuit 2, and the serial port data communication end of the ISA bus / serial port data conversion CPLD circuit 2 is connected to the serial port of the main control FPGA circuit 3 The data communication end, the failure time / trigger signal output and input terminals of the main control FPGA circuit 3 are connected to the failure time / trigger signal input and output terminals of the synchronous control FPGA ci...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/00
Inventor 杨孝宗刘宏伟吴智博左德承崔刚舒燕君董剑温东新苗百利向琳张展罗丹彦王玲
Owner HARBIN INST OF TECH
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