Method and system for realizing real-time scheduling of job shop

Abstract

The invention provides a method and a system for realizing the real-time scheduling of a job shop. The method for realizing the real-time scheduling of the job shop comprises the following steps: A, establishing a data model based on biological behaviors according to input related production data of the job shop; B, utilizing the related production data of the job shop to calculating a dynamic scheduling parameter of the data model based on the biological behaviors; C, generating a scheduling command according to the data model which is based on the biological behaviors and carries the dynamic scheduling parameter, sending the generated scheduling command to a job shop subsystem and recalculating the dynamic scheduling parameter by disturbance information when the disturbance information from the job shop subsystem is received; and repeatedly carrying out the step C till the scheduling of the job shop is completed. Because only the dynamic scheduling parameter is calculated during disturbance, the reaction speed of the system to disturbance situation is increased, the requirement of the real-time scheduling is met and the production efficiency of enterprises is improved.

Description

Technical field [0001] The invention relates to automation technology, in particular to a method and system for realizing real-time scheduling of job shops. Background technique [0002] With the continuous development of enterprise automation technology, the goal of optimizing management of the entire production process from product order placement to product completion is currently proposed, that is, to achieve the Manufacturing Execution System (MES). In the manufacturing execution system, in order to improve production efficiency, reduce production costs and other factors, it is necessary to control the processing process of the job shop, that is, to realize the real-time scheduling of the job shop. [0003] Real-time scheduling of job shops is a very complex problem. Taking discrete processing as an example, suppose that the job shop includes m equipments, and a complete product can be completed through n processes; one equipment has one or more functions, and a certain func...

AI Technical Summary

Problems solved by technology

In this case, if it takes a lot of time to eliminate disturbance factors, the entire production process will be delayed, which will greatly reduce the production efficiency of the enterprise

In the above-mentioned second method, although it is possible to re-optimize without waiting for the disturbance to be eliminated, the re-optimization time is generally relatively long, resulting in a very slow response of the scheduling system to the disturbance, and it is difficult to meet the needs of real-time scheduling

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