Machine group scheduling method based on process capacity characteristic model

A processing capability and feature model technology, applied in gene model, comprehensive factory control, comprehensive factory control, etc., can solve problems such as performance degradation of optimal scheduling scheme of machine groups

Inactive Publication Date: 2008-12-31
TSINGHUA UNIV
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Problems solved by technology

This method first establishes a processing capability characteristic model for the machine group scheduling problem, and then uses the genetic algorithm based on workpiece characteristics to obtain the optimal scheduling scheme of the machine group based on the sorting of the workpiece group, and dynamically optimizes

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  • Machine group scheduling method based on process capacity characteristic model
  • Machine group scheduling method based on process capacity characteristic model
  • Machine group scheduling method based on process capacity characteristic model

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Embodiment Construction

[0077] The machine group scheduling method based on the processing capability characteristic model in the present invention depends on the scheduling related information obtained by the scheduling information collection hardware system (hereinafter referred to as the collection system). The acquisition system consists of networked PCs in the enterprise LAN (generally adopt barcode or keyboard input method for information acquisition), PDA in wireless local area network (generally adopt barcode or keyboard input method for information acquisition), mobile phones registered in the acquisition system (generally It is composed of collection terminals such as information collection using SMS), fixed telephones (generally using voice calls for information collection), as well as collection servers and dedicated communication devices (telephone voice equipment, SMS collection equipment, etc.). The hardware configuration of the acquisition system is as follows: figure 1 shown.

[007...

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Abstract

The invention provides a machine group dispatching method on the basis of a processing capability characteristic model, belonging to the automatic control, information technique and advanced manufacture field. The machine group dispatching method is characterized in that on the basis of the dispatching time machine group information and the information of the dispatched workpiece which are obtained by a dispatching information hardware collecting system, the machine group dispatching software on the basis of processing capability characteristic model establishes a machine group dispatching model based on the processing capability characteristic model by taking the total minimum workpiece delay time as a dispatching object, further, a genetic algorithm based on the workpiece characteristic is adopted to carry out the optimum machine group dispatching and obtain a optimum machine group dispatching proposal based on the workpiece group sorting, and dynamically correct the original optimum machine group dispatching proposal on the basis of the workpiece releasing time disturbance information so as to deal with the problems that the original optimum machine group dispatching proposal performance is reduced or non-feasible due to workpiece releasing time disturbance. The dispatching method of the invention can carry out effective integrated optimum dispatching to the machine group of the traditional dispatching mode, which is difficult to directly assign the workpiece to the specific machines.

Description

technical field [0001] The invention belongs to the fields of automatic control, information technology and advanced manufacturing, and mainly relates to a method for optimal scheduling of a machine group including multiple machines but difficult to directly adopt the traditional scheduling mode of assigning workpieces to specific machines in a complex production process. Background technique [0002] In the production process of discrete / semi-continuous large and medium-sized manufacturing enterprises such as machinery, electronics, and textiles in my country, there are several processes with the following characteristics: the process is composed of multiple machines with similar processing capabilities; the number of machines and workpieces to be processed is large; due to There are uncertain factors such as quality accidents or machine failures in the previous process or this process, and changes in transportation time between processes. There are usually random disturbance...

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Application Information

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IPC IPC(8): G05B19/418G06N3/12
CPCY02P90/02Y02P90/80
Inventor 刘民李鹏吴澄
Owner TSINGHUA UNIV
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