Numerical control equipment fault diagnosis method based on fuzzy Petri net

A technology of numerical control equipment and fault diagnosis, which is applied in the direction of simulator, program control, computer control, etc., can solve the problems of large equipment system failures, high requirements for operating conditions, and shutdown, etc., to improve efficiency and practicability, and reduce diagnosis Scope, logical coherence and clear effect

Active Publication Date: 2019-10-15
SHANGHAI INST OF TECH
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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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  • Numerical control equipment fault diagnosis method based on fuzzy Petri net
  • Numerical control equipment fault diagnosis method based on fuzzy Petri net
  • Numerical control equipment fault diagnosis method 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] like 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, and ...

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Abstract

The invention provides a numerical control equipment fault diagnosis method based on a fuzzy Petri net. From a basic principle of a network theory, a characteristic of a diagnosis problem is combined,numerical control machine tool fault diagnosis is taken as an example, and a Petri net model in the field of fault diagnosis is studied. At the same time, the characteristic that the fuzzy Petri netcan be layered is used, relatively complex faults are subdivided step by layer so as to narrow a diagnosis scope, and efficiency and practicability of fault diagnosis of a numerical control equipmentdiagnosis object are finally improved.

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 Applications(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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