Safety assessment method of escalator braking system based on system accident causation theory
An escalator and braking system technology, applied in data processing applications, instruments, calculations, etc., can solve problems such as safety risk neglect, and achieve the effect of simple process, comprehensive and objective analysis results, and intuitive and easy-to-understand analysis results.
Active Publication Date: 2021-08-13
XI AN JIAOTONG UNIV
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Problems solved by technology
However, the traditional safety theory based on event chain analysis often focuses on the causal relationship of events, which can quickly and effectively solve accidents caused by component failures or operational errors, but ignores the interaction between personnel, equipment, environment and management. , so that some potential safety risks are often ignored, and the safety analysis of electromechanical special equipment cannot be realized comprehensively and objectively.
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[0028] The present invention will be further described below in conjunction with the accompanying drawings.
[0029] The safety analysis method of the braking system of the escalator based on the system accident causation theory proposed by the invention is a comprehensive and objective safety analysis method. On the basis of clarifying the safety requirements, this method constructs the corresponding macro-safety control structure model and micro-safety control process model through safety constraints, and performs iterative analysis on the specific unsafe control using the given four unsafe factors to confirm the possible causes. Potential improper control of the hazard and why it might occur.
[0030] figure 1 Shown is the basic analysis flow chart of the present invention, respectively through the structure and function of the escalator braking system and the relevant accident process and data statistics, to clarify the safety such as the effectiveness of the escalator br...
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The invention discloses a safety analysis method of an escalator braking system based on the system accident cause theory. The invention constructs a macroscopic safety control structure model of the escalator braking system through safety constraints on the basis of clear safety requirements, and Analyze its basic safety defects, and then build a micro-safety control process model for the unsafe control defect that the braking system does not work effectively when the escalator fails, and further analyze the unsafe control using the given four unsafe factors. , to confirm the potential inappropriate control that may cause danger and the possible causes. The results of this method are comprehensive, objective, intuitive and easy to understand, which is convenient for practical engineering applications and is a method suitable for safety analysis of escalator braking systems.
Description
technical field [0001] The invention belongs to the field of safety analysis of special electromechanical equipment, and in particular relates to a safety analysis method for an escalator braking system based on the system accident causation theory. Background technique [0002] Safety is one of the key performance indicators for the operation and use of special electromechanical equipment. It is an inherent attribute of special electromechanical equipment. Its safe and reliable operation is of great significance for improving production efficiency, reducing maintenance costs, and reducing casualties. However, the traditional safety theory based on event chain analysis often focuses on the causal relationship of events, which can quickly and effectively solve accidents caused by component failures or operational errors, but ignores the interaction between personnel, equipment, environment and management. , so that some potential safety risks are often ignored, and the safety...
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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0639G06Q10/067G06Q50/06
Inventor 訾艳阳周子桐陈景龙安桐
Owner XI AN JIAOTONG UNIV