Evaluation method of reconfiguration planning scheme of reconfigurable assembly system

Abstract

The invention discloses an evaluation method of a reconfiguration planning scheme of a reconfigurable assembly system. The method comprises the following steps that: a three-layer evaluation index system is established and an evaluation index set is established; all evaluation index values in the evaluation index set are obtained; an evaluation index membership matrix is obtained; a system optimal reference vector and a worst reference vector are obtained; a combined weight is obtained; an objective function concerning the membership is constructed and an excellent membership formula is obtained; according to the excellent membership formula, an excellent membership value is solved and a general membership value U of all schemes is obtained, and an optimal reconfiguration scheme is determined according to the general membership value. According to the invention, on the basis of engineering practice, systematic, scientific and comprehensive three-layer index evaluation system of a reconfigurable assembly system is constructed and a reconfigurable assembly line method is provided, so that integration of subjectivity and objectivity of an evaluation result is realized; and an optimal membership is solved by utilizing a least square method, so that defects that an evaluation value is easy to be uniformized and decision is difficult can be overcome to some extent.

Description

technical field [0001] The invention belongs to the field of production line automatic control and artificial intelligence evaluation, and relates to a reconfiguration planning scheme evaluation method of a reconfigurable assembly system. Background technique [0002] The reconfigurable assembly system is a new type of complex system. Various factors should be fully considered in the initial stage of system construction and planning to form a reasonable system planning scheme. In addition, when the external market or production tasks change, the reconfigurable assembly system will often be reconfigured, thus forming a variety of different system configurations, all of which require a new evaluation and decision-making system. Make a comprehensive evaluation of the structural decision-making, planning and design, and operation phases of the structural assembly system. Therefore, it is of great significance to provide an optimal decision-making scheme for the design or recon...

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Problems solved by technology

Therefore, it is of great significance to provide an optimal decision-making scheme for the design or reconstruction of the system. However, so far, the research on the evaluation system of reconfigurable assembly systems at home and abroad is mostly limited to the evaluation of some aspects of the system. Such as equipment performance, control system reliability, system layout planning, etc., but ignores the comprehensive evaluation of many factors that affect the overall performance of the reconfigurable assembly system. Therefore, it is difficult for enterprises to plan the reconfigurable assembly system. It is impossible to analyze and compare various planning schemes and choose among them if scientific and reasonable comprehensive evaluation is carried out.

In addition, the evaluation process is complicated, and steps such as establishing a hierarchical structure model, constructing a judgment matrix, and consistency testing are required, and the selection of evaluation index weights mostly depends on the knowledge level and experience of experts.

resulting in a lack of scientific evaluation results

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