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ELECTRONIC INTERLOCKING TO BE TRIED IN JAPAN

Ikumasa Okumura

Open publisher page 5 citations

Abstract

Early in 1981, the interlocking at Ishiuchi on the Joetsu Line of Japanese National Railways will be performed by computers, working in parallel with a conventional relay interlocking so as to check the integrity of the new technology under field conditions. System design avoids the need for a large number of programs by aggregating non-vital tasks, while reliability and safety are assured by two-out-of-three voting in a triple-redundant system. In addition, fail-safe fault detecting functions watch for component malfunction and shut down the subsystem affected, thus protecting overall safety.

About this research paper

What this paper is about

Early in 1981, the interlocking at Ishiuchi on the Joetsu Line of Japanese National Railways will be performed by computers, working in parallel with a conventional relay interlocking so as to check the integrity of the new technology under field conditions. System design avoids the need for a large number of programs by aggregating non-vital tasks, while reliability and safety are assured by two-out-of-three voting in a triple-redundant system. In addition, fail-safe fault detecting functions watch for component malfunction and shut down the subsystem affected, thus protecting overall safety.

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OpenAlex reports 5 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Early in 1981, the interlocking at Ishiuchi on the Joetsu Line of Japanese National Railways will be performed by computers, working in parallel with a conventional relay interlocking so as to check the integrity of the new technology under field conditions. System design avoids the need for a large number of programs by aggregating non-vital tasks, while reliability and safety are assured by two-out-of-three voting in a triple-redundant system. In addition, fail-safe fault detecting functions watch for component malfunction and shut down the subsystem affected, thus protecting overall safety.

Key concepts: Interlocking, Relay, Reliability (semiconductor), Reliability engineering, Component (thermodynamics), Shut down, Engineering, Fail-safe

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