Avionics Equipment Cable Fault Injection Design and Simulation Testing Validation

• Published in: 2023 Global Reliability and Prognostics and Health Management Conference (PHM-Hangzhou) pp. 1 - 5
• Main Authors: Xu, Yangdong, He, Shilie
• Format: Conference Proceeding
• Language: English
• Published: IEEE 12-10-2023
• Subjects: Aerospace electronics; Aircraft; Aircraft cable; Electrical layer fault; Fault injection; Fault tolerant systems; Mathematical models; Power cable insulation; Power cables; Reliability engineering; Zynq-7020
• DOI: 10.1109/PHM-Hangzhou58797.2023.10482733

Aircraft cable is an important part of aircraft avionics communication system. It is of great significance to study the reliability and effectiveness of aircraft cable for the whole aircraft system. The distribution of cables in the whole aircraft communication system is very complicated, including many long transmission lines, which puts forward high requirements for the fault detection of the whole aircraft system. Fault injection, as an important part of system development, needs to meet the growing needs of multiple fault testing. It is used to simulate various fault situations that may occur in the system, so as to detect and evaluate the reliability and stability of the system. Aiming at high fault tolerance, high reliability and large capacity aircraft cable fault detection design, this paper proposes a multi-type fault injection based on FPGA chip to simulate the faults of the physical layer and electrical layer of equipment interconnection in avionics system. It can speed up the validity verification of fault injection detection and fault diagnosis method. In this paper, various signal implementation fault injection methods are explained hierarchically, and the Ethernet transmission line is simplified to replace the AXDF transmission line of avionics system to carry out practical tests. From the test data analysis and demonstration, the method meets the needs of various types of fault injection.