Single-machine production scheduling method and system with deteriorating maintenance duration

A technology of production scheduling and duration, applied in the direction of control/regulation system, general control system, comprehensive factory control, etc.

Active Publication Date: 2020-09-08
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, within a scheduling cycle, multiple equipment maintenance may be required

Method used

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  • Single-machine production scheduling method and system with deteriorating maintenance duration
  • Single-machine production scheduling method and system with deteriorating maintenance duration
  • Single-machine production scheduling method and system with deteriorating maintenance duration

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] In the first aspect, this application provides a single-machine production scheduling method with deteriorating maintenance duration, such as figure 2 As shown, the method includes:

[0037] S110, setting the parameters of the harmony search algorithm, the parameters include the number m of individuals that can be stored in the harmony me...

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Abstract

The invention provides a single machine production scheduling method and system with deterioration maintenance duration. The method comprises the steps of: S110, setting parameters of a harmony searchalgorithm; S120, constructing an initial harmony memory library; S130, calculating the individual similarity, the self-adaptive harmony memory retention probability and the self-adaptive tone adjustment probability of a current harmony memory library; S140, generating a new individual; S150, updating the current harmony memory library; and S160, judging whether the current iteration number reaches the maximum iteration number or not, if yes, taking the individual with the maximum fitness value in the current harmony memory as an optimal solution and outputting and if not, adding 1 to the iteration number and returning to the S130. The method has the beneficial effects that the fitness value is maximum, that is, the sum of maintenance durations is minimum, thereby solving the problem of minimizing the sum of the maintenance duration in the single machine scheduling process.

Description

technical field [0001] The present application relates to the technical field of stand-alone production scheduling, in particular to a method and system for stand-alone production scheduling with deteriorating maintenance time. Background technique [0002] The optimization problem of single-machine scheduling with linearly deteriorating maintenance time is common in the production of manufacturing enterprises, such as aluminum profile processing, plastic product processing, and integrated circuit board production. Specifically, it is the process of processing n workpieces on one piece of equipment. After the equipment has been continuously processed for a period of time, maintenance is often required to ensure the normal processing of subsequent workpieces. like figure 1 As shown, there is a time window for equipment maintenance [x 1 , x 2 ], the device has worked continuously for x 1 It was usually unnecessary maintenance before, and it has been working continuously fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCG05B19/41865G05B2219/32252Y02P90/02
Inventor 刘林沙雲程浩裴凤成天琪张晴菲
Owner HEFEI UNIV OF TECH
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