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Method and device for reconfiguration scale selection of reconfigurable manufacture system

A manufacturing system and scale selection technology, applied in the field of reconfiguration scale selection of reconfigurable manufacturing systems, can solve the problems that affect the reconfigurable manufacturing system's advantages, reconfiguration efficiency and cost imbalance, fail to consider the reconfigurable manufacturing system RMS Problems such as multi-scale characteristics

Active Publication Date: 2014-02-26
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and device for selecting the reconfiguration scale of the reconfigurable manufacturing system. The imbalance between reconfigurable efficiency and cost affects the advantages of reconfigurable manufacturing systems

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  • Method and device for reconfiguration scale selection of reconfigurable manufacture system

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Embodiment Construction

[0050] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0051]The present invention aims at the problem that the multi-scale characteristics of the reconfigurable manufacturing system RMS are not considered in the existing reconfiguration, which leads to the imbalance of reconfiguration efficiency and cost, and affects the advantages of the reconfigurable manufacturing system. It provides a reconfigurable manufacturing system. A method for reconfiguring the scale selection of the manufacturing system, including:

[0052] Obtain production performance signals of reconfigurable manufacturing systems;

[0053] Perform Fourier transform on the production performance signal to obtain the spectral function F of the production performance signal n , so as to get the spectrogram;

[0054] The magnitude Δ that needs...

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Abstract

The invention provides a method and a device for reconfiguration scale selection of a reconfigurable manufacture system. The device comprises a first acquiring module for acquiring production performance signals of the reconfigurable manufacture system; a processing module for carrying out Fourier transform to the signals to obtain a corresponding frequency spectrum Fn or a frequency spectrum density function F(omega) to obtain a spectrogram; a second acquiring module for acquiring the variation amount [delta] that the performance of the reconfigurable manufacture system (RMS) needs; a first inquiring module for finding the corresponding amplitude in the frequency spectrum in dependence on the variation amount [delta]; a second inquiring module for finding a corresponding frequency value [omega] in the frequency spectrum in dependence on the variation amount [delta]; a third acquiring module for acquiring a demarcation point frequency value of each scale reconfiguration in the frequency domain; and a determining module for determining the grade that a reconfiguration needing to be carried out belongs to in dependence on the comparative result of the frequency value [omega] and the demarcation point frequency value. According to the invention, the balance between reconfigurable usefulness and cost is guaranteed to some extent, the reconfigurable manufacture system (RMS) is optimized, and at the same time relative advantages are guaranteed.

Description

technical field [0001] The invention relates to the field of advanced manufacturing technology, in particular to a method and device for reconfigurable scale selection of a reconfigurable manufacturing system. Background technique [0002] On the spatial scale, according to the different reconfiguration granularities, reconfigurable manufacturing system reconfiguration can be divided into system-level reconfiguration, unit-level reconfiguration and machine tool-level reconfiguration, such as figure 1 shown. On different scales, the objects of reconfiguration are different, the time cost and economic cost of the reconfiguration process are different, and the influence and effect of reconfiguration on the reconfigurable manufacturing system RMS are bound to be different. Therefore, it is necessary to select an appropriate scale for reconstruction in response to different external changes. Refactoring at the correct scale ensures the effect of reconstruction while controlling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/04
CPCY02P90/30
Inventor 王国新鲍衍地阎艳杜景军王孟超
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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