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Fault Diagnosis Method of NC Equipment Based on Fuzzy Petri Net

A technology of numerical control equipment and fault diagnosis, applied in the directions of simulator, program control, computer control, etc., can solve the problems of equipment system failure, shutdown, high requirements for operating conditions, improve efficiency and practicability, and clear logical coherence , the effect of narrowing the scope of diagnosis

Active Publication Date: 2022-02-22
SHANGHAI INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In this case, the problem is that the possibility of equipment system failure becomes greater.
Moreover, due to the close connection between the various parts of the equipment, once a failure occurs, it is likely to affect the operation of the entire equipment
The technology of CNC equipment is complicated, the operating conditions are high, and the average operating cost is relatively high, which often leads to downtime due to failure. If the failure cannot be eliminated in a timely and accurate manner, it will lead to long downtime and prolong the delivery cycle, which will bring business losses to the enterprise. serious economic loss

Method used

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  • Fault Diagnosis Method of NC Equipment Based on Fuzzy Petri Net
  • Fault Diagnosis Method of NC Equipment Based on Fuzzy Petri Net
  • Fault Diagnosis Method of NC Equipment Based on Fuzzy Petri Net

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Embodiment Construction

[0046] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] Such as figure 1 As shown, the present invention provides a kind of numerical control equipment fault diagnosis method based on fuzzy Petri net, comprising:

[0048] Step S1, analyzing the fault information of the NC equipment diagnostic object, collecting the fault cause, fault location, fault phenomenon, and fault diagnosis scheme of the NC equipment diagnostic object;

[0049] Step S2, sorting out the fault events, fault conditions and corresponding solutions in the fault diagnosis;

[0050] Step S3, establish a fuzzy Petri net fault diagnosis model of the numerical control equipment diagnostic object according to the fault information, set the confidence value of the storehouse, the threshold value of the transition, a...

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Abstract

The present invention provides a numerical control equipment fault diagnosis method based on fuzzy Petri nets. The present invention proceeds from the basic principles of net theory, combines the characteristics of diagnostic problems, and takes the fault diagnosis of numerical control machine tools as an example to carry out a Petri net model in the field of fault diagnosis. At the same time, using the layered characteristics of fuzzy Petri nets, the relatively complex faults are subdivided layer by layer, thereby narrowing the scope of diagnosis, and finally improving the efficiency and practicability of fault diagnosis of CNC equipment diagnosis objects.

Description

technical field [0001] The invention relates to a fault diagnosis method of numerical control equipment based on fuzzy Petri net. Background technique [0002] The emergence and development of intelligent technology marks the enhancement of my country's scientific and technological capabilities and economic capabilities, and new technologies and methods are constantly being invested in the production fields of various industries. The advancement of science and technology has also promoted the upgrading of numerical control equipment. The salient features of the equipment are: highly integrated, highly intelligent, and highly automated. In this case, the problem is that the possibility of equipment system failure becomes larger. Moreover, since the various parts of the equipment are closely connected, once a failure occurs, it is likely to affect the operation of the entire equipment. The technology of CNC equipment is complicated, the operating conditions are high, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/4063
CPCG05B19/4063
Inventor 徐兵卢娜刘潜高佩华
Owner SHANGHAI INST OF TECH
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