The Structures of the Fault-Tolerant Automation and Computing Devices Based on the Boolean Complement

Sapozhnikov, Vladimir; Ефанов, Д.В.

doi:10.1109/ewdts52692.2021.9581037

Cited by 1 publication

(1 citation statement)

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“…Таким образом, сами рабочие сигналы становятся функциональным тестом еще более сложной системы [6]. Кроме того, в рамках рассматриваемой системы следует дополнительно контролировать программно-аппаратные средства технического зрения путем сравнения показаний датчиков технического зрения на борту и на стационаре [7].…”

Section: постановка задачиunclassified

Estimating the safety and reliability of the control system of a locomotive with machine vision

et al. 2023

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Abstract. Aim. The paper aims to evaluate the indicators of safety and reliability of the MALS suite of technology that ensures the control of locomotives. Increased indicators are achieved through the use of additional controls. As such, a second virtual channel is proposed. The latter allows detecting MALS failures without affecting the shunting engine control algorithms.Methods. The paper uses the graph method. Using a modified topological semi-Markov method, formulas were deduced for calculating the mean time to failure and the safety factor.Results. The paper individually examines the mean time of the automatic train operation system of a shunting engine remaining in at least SIL3 and mean time to hazardous failure. The authors research the dependence of the above indicators on the failure rate of the MALS equipment and the machine vision. Using the graph method, the level of the system’s functional safety was evaluated by calculating the safety factor and the danger factor. The dependence of the above factors on the system recovery time and probability of detection of component failures was examined.

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Section: постановка задачиunclassified