Reliability Increase for Avionics Data Communication

Autor:	Osamu Saotome, Roberto daAmore, Marcos Silveira Santos
Rok vydání:	2021
Předmět:	Space and Planetary Science Computer science Payload Redundancy (engineering) Aerospace Engineering System testing System safety ARINC 429 Electrical and Electronic Engineering Avionics Fletcher's checksum Reliability (statistics) Reliability engineering
Zdroj:	IEEE Aerospace and Electronic Systems Magazine. 36:32-41
ISSN:	1557-959X 0885-8985
DOI:	10.1109/maes.2021.3100344
Popis:	The ARINC 429 protocol stands out in point-to-point interfaces in commercial aviation. Its reliability is guaranteed by dependable installation requirements, achieving failure rates as low as 10-5 or 10-6. Complex systems require processing a high volume of data from several sources, and, to increase the reliability, additional weight is added in the form of redundancy. This article presents a method to include verification bits on ARINC 429 payload for error detection, reducing the rate of undetected errors in the order of 10-2, elevating the overall safety standard, and providing an alternative to avoid weight expenditure. Four different error detection methods (CRC-4, CRC-5, Hamming, and Fletcher Checksum) were applied in a real commercial aircraft avionics system test bench, showing transparency for the information consumer systems. The system safety assessment perspective was also analyzed via a typical triple source system with a voting scheme, demonstrating the method's applicability.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fb178d3ea5d0d1fa9e2ca2754517e30c https://doi.org/10.1109/maes.2021.3100344 Zobrazit plný text záznamu