Manufacture system fuzzy control energy saving method based on real-time production data

A fuzzy control and manufacturing system technology, applied in general control systems, control/regulation systems, adaptive control, etc., can solve problems such as difficult system states, missed energy-saving opportunities, accurate descriptions, etc., to achieve low green manufacturing, low energy consumption, The effect of strong robustness

Inactive Publication Date: 2018-02-13
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

However, these methods are all energy consumption control measures in the assigned mode. Due to the existence of random factors in the production system, it is difficult for the energy consumption control measures in the assigned mode to achieve an accurate description of the system status, and it is impossible to realize real-time control of the machine equipment according to the system status. , thus missing the energy-saving opportunity

Method used

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  • Manufacture system fuzzy control energy saving method based on real-time production data
  • Manufacture system fuzzy control energy saving method based on real-time production data
  • Manufacture system fuzzy control energy saving method based on real-time production data

Examples

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example 1

[0070] This example takes the serial unit as an example, where the total capacity of the upstream buffer WIP is 100, and the total capacity of the downstream buffer WIP is 120. The specific steps are as follows:

[0071] (1) Get the current running machine M 3 The WIP quantity in the upstream buffer is 50 and the WIP quantity in the downstream buffer is 25;

[0072](2) Construct the upstream buffer coordinate system and the downstream buffer coordinate system respectively. The maximum value of the X axis of the upstream buffer coordinate system is 100, which is divided into four intervals, the maximum value of the Y axis is 1, and the five area points are respectively Empty area point 0, close to empty area point 25, normal area point 50, close to full area point 75, full area point 100; the maximum value of the X-axis of the downstream buffer coordinate system is 120, which is divided into four intervals, and the maximum value of the Y-axis is 1, and the five area points are...

example 2

[0075] This example takes the serial unit as an example, where the total capacity of the upstream buffer WIP is 200, and the total capacity of the downstream buffer WIP is 200. The specific steps are as follows:

[0076] (1) Get the current running machine M 8 The WIP quantity in the upstream buffer is 190 and the WIP quantity in the downstream buffer is 140;

[0077] (2) Construct the upstream buffer coordinate system and the downstream buffer coordinate system respectively. The maximum value of the X axis of the upstream buffer coordinate system is 200, which is divided into four intervals, the maximum value of the Y axis is 1, and the five area points are respectively Empty area point 0, close to empty area point 50, normal area point 100, close to full area point 150, full area point 200; the maximum value of the X-axis of the downstream buffer coordinate system is 200, which is equally divided into four intervals, and the maximum value of the Y-axis is 1, and the five ar...

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Abstract

The invention belongs to the field of production and manufacture system energy saving control, and specifically discloses a manufacture system fuzzy control energy saving method based on real-time production data. The manufacture system fuzzy control energy saving method comprises the following steps: (1) obtaining the amount of products in process in the upstream relief area and the amount of products in a downstream relief area in real time to serve as two input variables for fuzzy judgment; (2) on the basis of the amount of products in process in the upstream relief area and the amount of products in the downstream relief area, adopting a fuzzy judgment rule to carry out fuzzy judgment to obtain a fuzzy control output value; (3) comparing the fuzzy control output value with a preset threshold value, judging whether the fuzzy control output value is smaller than the preset threshold value or not, if the fuzzy control output value is smaller than the preset threshold value, halting amachine which runs at present, and otherwise, keeping the current state. By use of the manufacture system fuzzy control energy saving method based on the real-time production data, the effective control of the energy consumption of the production system can be realized, and the manufacture system fuzzy control energy saving method has the advantages of convenience in operation, high applicabilityand the like.

Description

technical field [0001] The invention belongs to the field of energy-saving control of manufacturing systems, and more specifically relates to a fuzzy control energy-saving method for manufacturing systems based on real-time production data. Background technique [0002] With the wide application of industrial Internet, RFID, robots and other sensing and automation equipment in the manufacturing field, the degree of automation of the manufacturing system has been improved, but how to realize the energy-saving control of these highly automated production systems is an urgent problem to be solved in this field. [0003] Most of the existing research on energy consumption of manufacturing systems starts from the research and development of new low-energy mechanical processing equipment, ignoring the control of energy consumption from the perspective of the integrity of the production system. At present, some scholars in this field adopt the transient analysis method to analyze t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/0275G05B13/042G05B13/047G06F1/3287
Inventor 王峻峰薛金李世其付艳费子成
Owner HUAZHONG UNIV OF SCI & TECH
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