Open AccessResearch on Fault Injection Method for Testability Verification Test
Author(s) -
Wenhao Qiu,
Guangyao Lian,
M. R. Long,
Jing Gao
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/677/4/042096
Subject(s) - fault injection , fault (geology) , testability , fault coverage , stuck at fault , signal (programming language) , fault model , computer science , test method , reliability engineering , engineering , fault detection and isolation , mathematics , software , electronic circuit , electrical engineering , artificial intelligence , statistics , actuator , seismology , programming language , geology
Aiming at the problems of weak generality of fault injection method and inaccurate reproducibility of fault signal caused by abstract failure simulation method when fault injection is applied to complex equipment with high integration, a general fault injection method is proposed. Firstly, the principle and effectiveness of fault injection are analysed, and the mode and purpose of fault injection are defined. Then, the basic principles of three fault injection methods are studied to provide a basis for the research of general injector. Finally, a failure simulation method based on mixed signal model is proposed to achieve more accurate and simple fault reproduction. The fault injection method is applied to a certain type of control system. The results show that the method can provide comprehensive and accurate elements for fault signals to be simulated in the fault signal simulation stage, and improve the injection efficiency of fault samples in testability verification test.