MES (Manufacturing Execution System) dynamic workshop scheduling and manufacturing execution system

Abstract

The invention discloses an MES (Manufacturing Execution System) dynamic workshop scheduling and manufacturing execution system. According to the system, a planning layer, a control layer and an MES are integrated on the basis of the MES, the production capability and the load are averaged under an existing production condition, the production period is shortened and articles being processed are reduced, so that the aim of improving the economic benefits is finally realized. The timeliness of information of the MES can meet the requirements of rapid change of production operation very well; the scientificity of enterprise production scheduling and a workshop operation informationalized level can be improved; meanwhile, the change of the market and the processing process can be rapidly reflected in time and the corresponding adjustment is carried out, so that the operation efficiency of the system is improved. On the basis, the workshop production scheduling is visually modeled and simulated by using Witness; a simulation model is established and the simulation analysis is carried out so as to carry out analogue simulation and data statistics on each scheme; the contrastive analysis is carried out on related data of each set of machinery equipment and each product and corresponding data before improvement so as to realize the optimization of workshop scheduling.

Description

technical field [0001] The invention belongs to the field of workshop scheduling, in particular to an MES dynamic workshop scheduling manufacturing execution system. Background technique [0002] Manufacturing Execution System (MES), as a management information system oriented to workshop production, is a bridge between the enterprise planning management layer and the workshop control bottom layer, while workshop production scheduling is the core module of the MES system, which is directly related to the enterprise production, Operational and management efficiency. The Job Shop Scheduling Problem (JSSP) has the characteristics of complexity, dynamic randomness and multi-objective. Production scheduling mainly solves the optimal arrangement of resources and plans, provides guidance for plan execution and control, and directly controls the stability of production. and proceed in an orderly manner. Good production scheduling can solve the interference in production in advance...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a MES dynamic workshop scheduling manufacturing execution system, which aims to solve the problem that the traditional production scheduling system lacks necessary on-site information in the scheduling process because the control layer and the scheduling layer are independent, and the scheduling results are difficult to be sure. In line with the actual production situation, real-time rescheduling cannot be performed when the production situation changes. The planning layer is separated from the control layer. The control layer cannot timely reflect the deviation information that may or has occurred in the production process from the plan to the planning layer, resulting in planning. The layer cannot be corrected in real time, and the purpose of dynamic real-time scheduling cannot be achieved

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