An integrated optimization method for production planning and scheduling under uncertain requirements

A technology of production planning and production scheduling, which is applied in calculation, data processing application, forecasting, etc., and can solve problems such as only considering production planning and production scheduling, difficulties, etc.

Inactive Publication Date: 2019-06-25
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, optimization problems requiring a complex mathematical form are quite difficult
Based on the above problems, we only consider the problem of production planning and production scheduling under uncertain market demand

Method used

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  • An integrated optimization method for production planning and scheduling under uncertain requirements
  • An integrated optimization method for production planning and scheduling under uncertain requirements
  • An integrated optimization method for production planning and scheduling under uncertain requirements

Examples

Experimental program
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Embodiment Construction

[0074] A multi-product batch chemical production plant can produce two products (P 1 ,P 2 ). The state task network diagram of its technological process is as follows figure 1 . The reaction process of Reaction 1, Reaction 2 and Reaction 3 can all be carried out in Reactor 1 and Reactor 2. The production planning cycle considered in the example is 40 hours, and the production planning cycle is divided into 5 production scheduling cycles.

[0075] The data of production scheduling process is shown in Table 1 and 2, the data of cost part is shown in Table 3, and the data of production planning cost part is shown in Table 4.

[0076] Table 1 Production Equipment Process Data

[0077]

[0078] Table 2 Material status data (--- means unlimited)

[0079]

[0080] Table 3 Production Scheduling Cost Data

[0081]

[0082] Table 4 Production planning cost data

[0083]

[0084] Uncertain market demand is shown in Table 5.

[0085] Table 5 Market demand for differen...

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Abstract

The invention relates to an integrated optimization method for production planning and scheduling under uncertain requirements. At present, a production plan and scheduling problem solving mode is mainly a traditional optimization method, an optimization result is difficult to be an optimal solution, and the traditional optimization method cannot be realized technically, so that expected production targets cannot be realized, resource distribution cannot be issued, and the like. The method comprises the following steps: acquiring specific data of a production planning layer and a scheduling layer; respectively establishing a planning layer cost model and a scheduling layer cost model under the condition of uncertain demand according to the specific data; and utilizing an improved collaborative optimization method to optimize the plan and scheduling cost model under the condition of uncertain demand, and finally obtaining a production scheme with the lowest cost. Aiming at some problemsin production planning and scheduling optimization, the invention provides an optimization method with stronger global optimization capability, and the optimization method has the characteristics ofopenness, robustness, parallelism, global convergence, no special requirement on the mathematical form of the problem and the like.

Description

technical field [0001] The invention belongs to the field of information and control technology, relates to automation technology, in particular to an integrated optimization method for production planning and scheduling under uncertain demand. Background technique [0002] Production planning and scheduling has always been a decision-making problem that the chemical production industry pays special attention to. Production planning and scheduling is the use of modern and advanced methods and technologies, taking into account production constraints such as production process requirements and production resource conditions, optimizing the allocation of various manufacturing resources, formulating a production plan that meets the production requirements of the enterprise, and striving to meet the production requirements within the specified time. quantity to produce the desired product. The production plan is mainly aimed at factors such as the demand of a certain market and ...

Claims

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Application Information

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IPC IPC(8): G06Q10/04
Inventor 郑松吴翟葛铭郑小青魏江
Owner HANGZHOU DIANZI UNIV
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