Vertical lift safety evaluation method

Abstract

The invention discloses a vertical lift safety evaluation method. An evaluation model is established based on a fuzzy mathematical modeling method and comprises a lift safety evaluation index system part, an index relative importance part and an index fuzzy evaluation standard part. The vertical lift safety evaluation method comprises the following steps of: establishing a hierarchical evaluation model of a safety evaluation index system of a general lift system; determining the index relative importance and determining the safety state fuzzy membership of the evaluation index; and calculating a comprehensive evaluation score F of the lift system so as to realize the lift safety evaluation according to the comprehensive evaluation score F and a corresponding safety level. The modeling evaluation method has the characteristics of successively splitting, refining and integrating, and an effective comprehensive evaluation conclusion can be formed according to the evaluation result of the evaluation index.

Description

technical field [0001] The invention belongs to the technical field of elevator equipment, relates to a fuzzy mathematical modeling method and an analytic hierarchy process, is suitable for vertical elevators, and is a vertical elevator safety evaluation method. Background technique [0002] As a special equipment, the safety status of elevators is the focus of safety supervision, and elevators are closely related to the daily travel of residents and the basic production activities of enterprises. For elevators that fail to pass the inspection, the safety supervision department is often in a dilemma: order to stop use - bring great inconvenience to production and life; let it continue to use - the safety status of the elevator does not meet the legal requirements; require modification - There is neither technical data as a support nor operational legal provisions as a basis, which has become a difficulty in safety supervision. At present, the regulations on special equipmen...

AI Technical Summary

Problems solved by technology

However, the elevator industry is still in its infancy in the research and application of elevator safety evaluation technology, and there are fewer theoretical studies in this area.

The elevator working environment is often more complex, so there are many fuzzy factors that induce elevator accidents during its operation and maintenance.

In addition, the impact of risk factors on the elevator system is not necessarily independent, but related to each other, and the relationship varies with time, location and other conditions, which has great ambiguity

The objective existence of this ambiguity prevents various risk factors from being accurately quantified, so conventional simple qualitative methods are difficult to accurately describe the objective reality of elevator use and operation, and it is difficult to achieve accurate modeling of its operating system

At present, the elevator safety evaluation mainly focuses on qualitative evaluation, and fuzzy modeling evaluation technology has no mature results

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