Interference source identification method in system-grade electromagnetic compatibility fault diagnosis

An electromagnetic compatibility and fault diagnosis technology, which is applied in the direction of measuring electricity, measuring electrical variables, measuring current/voltage, etc., can solve problems such as long cycle, influence of system development progress, and high personnel requirements

Inactive Publication Date: 2012-09-19
XIDIAN UNIV
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Problems solved by technology

This kind of judgment process has problems such as high requirements for personnel, long cycle time, heavy

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  • Interference source identification method in system-grade electromagnetic compatibility fault diagnosis
  • Interference source identification method in system-grade electromagnetic compatibility fault diagnosis
  • Interference source identification method in system-grade electromagnetic compatibility fault diagnosis

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Embodiment Construction

[0111] The invention belongs to an interference source identification method in electromagnetic compatibility fault diagnosis. The EMC fault diagnosis process is as follows: figure 1 As shown, first locate sensitive devices (such as display devices) through step 101, and then perform fault tree analysis in step 102 (for detailed analysis, see figure 2 ) to obtain the priority of 103 coupling paths, then obtain the interference test data through 104 field tests based on the priority, carry out step 105 and store the test data in the database; 102 fault tree analysis can also draw 106 potential sources of interference, and then step 107 finds and determine the priority of the interference source, combine the results of 105 and 107 to identify the interference source 108 (detailed analysis see image 3 ), it is judged by step 109 whether it is a known interference signal, if not, the environmental monitoring of step 110 is carried out, and if it is a known interference signal o...

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Abstract

The invention belongs to an electromagnetic compatibility fault diagnosis method and particularly relates to an interference source identification method in a system-grade electromagnetic compatibility fault diagnosis. The interference source identification method is characterized by comprising the following steps of: step 101, utilizing positioning sensitive equipment; step 102, carrying out fault tree analysis on the positioning sensitive equipment; step 103, performing the fault tree analysis so as to obtain a priority level of a coupling path; step 104, testing to obtain interference testing data; step 105, storing the testing data into a database; step 106, obtaining a potential interference source through the fault tree analysis of the step 102; step 107, searching and determining the priority level of the interference source; step 108, combining the step 105 and the step 107 to identify the interference source; step 109, judging whether the interference source is a determined interference signal or not; if not, carrying out step 110; otherwise, carrying out step 111; step 110, carrying out environment monitoring; and step 111, obtaining the determined interference signal and finally, finishing the compatibility fault diagnosis. The interference source identification method in an electromagnetic compatibility fault diagnosis system has the advantages of convenience for use, short period, low cost and controllable faults.

Description

technical field [0001] The invention belongs to an electromagnetic compatibility fault diagnosis method, in particular to an interference source identification method in an electromagnetic compatibility fault diagnosis system, and is suitable for system-level electromagnetic compatibility fault diagnosis. Background technique [0002] With the rapid development and wide application of modern electronic information science and technology, electronic information systems are developing towards integration, multi-task and miniaturization. Various electronic devices or systems and other electronic and electrical devices are becoming more and more dense, resulting in a complex electromagnetic environment within the system. High-density, wide-spectrum electromagnetic signals fill the entire space, especially when integrated on a certain carrier platform. The problem of electromagnetic compatibility is becoming more and more prominent in mobile electronic information systems, such a...

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Application Information

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IPC IPC(8): G01R31/00G01R19/00
Inventor 田锦邱扬许社教刘君华黄孟龙
Owner XIDIAN UNIV
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