On Implied Defect in Elevator Control Software which Causes the Lift Car suddenly Reverse its Direction

Wen Yang Xie; Yin Yuan Ma

doi:10.4028/www.scientific.net/AMM.433-435.1201

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 433-435On Implied Defect in Elevator Control Software...

On Implied Defect in Elevator Control Software which Causes the Lift Car suddenly Reverse its Direction

Abstract:

An implied defect in one of the elevator control software is analyzed and modified. This defect would cause the elevator keep running up and down unbreakably between the next layer and previous layer of the target layer. The modification of the control software without adding physical parts was proposed. Three software design patterns to improve the safety of the elevator control software were discussed. The methods are validated to be reliable and feasible.

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Periodical:

Applied Mechanics and Materials (Volumes 433-435)

Pages:

1201-1205

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.433-435.1201

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Online since:

October 2013

Authors:

Wen Yang Xie, Yin Yuan Ma

Keywords:

Defect Fix, Design Patterns, Elevator Control, Software Defect

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