Rtca Do-178b/ Eurocae Ed-12b

Ferrell, Thomas K.; Ferrell, Uma D.

doi:10.1201/b17545-12

Cited by 7 publications

(1 citation statement)

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“…Thus, in order to ensure the required level of reliability and safety of real-time embedded systems, additional kinds of software analysis should be applied to them. One of such kinds is an analysis of the firmware execution time controlled by standards DO178B [2] and ARINC 653 [3]. However, these standards do not regulate any conditions for testing and do not prescribe any methods that would make allowances for the fact that hardware components of an embedded system are gradually getting worn-out over time and, for this reason, the response time of any embedded system tends to worsen over time (the longer an embedded system has been in use, the slower its response time proves to be).…”

Section: Introductionmentioning

confidence: 99%

A Method of Predicting the Maintenance Period of Embedded Systems for Preventing Breach of Their Time Requirements

Fedasyuk¹,

Marusenkova²,

Chopey³

2018

IJC

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The work deals with a significant problem of ensuring that the execution time of a firmware running inside a microcontroller-based real-time embedded system never goes out of its expected range, no matter for how long the embedded system has been used. Once having been tested before the first usage, a newly created embedded system is gradually getting slower in its response, due to the fact that its hardware components get worn-out with aging. A possible solution is a replacement of the hardware components that most contribute to such a change in the response time of the embedded system. If such a replacement takes place too far in advance, long before hardware components actually start showing any decline in their response time, the above-mentioned solution is cost-ineffective and impractical, as it leads to a waste of equipment and efforts. We introduce a method for predicting the appropriate maintenance period of a real-time embedded system on the basis of the characteristics of its hardware components.

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Section: Introductionmentioning

confidence: 99%