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Electrical system fault diagnosing device

A fault diagnosis device and electrical system technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve problems such as model distortion, large information gap, description of electrical system signals and their dissemination of information, etc., to improve accuracy, The effect of high structural consistency

Inactive Publication Date: 2015-06-17
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] (1) There is no comprehensive description of the electrical system signal and its propagation information from the logical and physical layers, and the comprehensive analysis method is limited
[0005] (2) There is a large information gap between the established model and the actual design circuit, which is likely to cause model distortion

Method used

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] Figure 1 to Figure 4 A specific embodiment of the present invention is shown, a device for fault diagnosis of an electrical system, including a PC, an interface adapter, a general test resource module, a fault diagnosis module and a diagnostic knowledge base module, the PC controls the general test resource module, and the general test resource module is controlled by the interface adapter Test the electrical system to be diagnosed to obtain test data, the fault diagnosis module preprocesses the test data, and then diagnoses the test data through the diagnosis knowledge base module to obtain the diagnosis result.

[0032] In this embodiment, the present invention further includes a fault knowledge base management module and an electrical system design module, and the fault knowledge base management module performs preprocessing of the c...

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Abstract

The invention discloses an electrical system fault diagnosing device, which includes a PC (personal computer), an interface adapter, a general test resource module, a fault diagnosing module and a diagnosis knowledge base module, wherein the PC controls the general test resource module to test a to-be-diagnosed electrical system via the interface adapter so as to acquire test data; the fault diagnosing module receives the test data and performs pretreatment to the test data; the diagnosis knowledge base module receives and diagnoses the pretreated test data so as to acquire a diagnosis result. The electrical system fault diagnosing device has the advantages of simple and compact structure, low cost, convenience for operation, good generality, high accuracy, capability of being configured as per different users, high project application value and the like.

Description

technical field [0001] The invention relates to the technical field of electrical system fault diagnosis, in particular to an electrical system fault diagnosis device based on a logic-physical comprehensive model. Background technique [0002] With the continuous improvement of the intelligence of electrical systems, the requirements for the expert knowledge of maintenance and support personnel are getting higher and higher. At present, most maintenance and support work is inseparable from the on-site technical guidance and collaborative research of experts in the field; various ground testing methods With continuous improvement, the test information is more and more abundant, but its comprehensive analysis methods are still very limited. In terms of fault diagnosis of electrical systems, the common method is fault diagnosis based on signal interconnection structure, which is essentially a diagnosis method based on signal network connection propagation. Koscielny et al. con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 曾庆华黄哲志贾零祁董荣华郭振云贾涛陈龙志
Owner NAT UNIV OF DEFENSE TECH
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