Hull structure stress monitoring system sensor open-circuit fault diagnosis algorithm

A technology for open-circuit faults and structural stress, which is applied in the testing, instruments, and measuring devices of machines/structural components to achieve the effect of real-time and effective diagnosis.

Active Publication Date: 2019-12-10
HARBIN ENG UNIV +2
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  • Abstract
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Problems solved by technology

If the sensor has an open-circuit fault, its main signal feature is that the stress data measured by the sensor is zero, and

Method used

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  • Hull structure stress monitoring system sensor open-circuit fault diagnosis algorithm
  • Hull structure stress monitoring system sensor open-circuit fault diagnosis algorithm
  • Hull structure stress monitoring system sensor open-circuit fault diagnosis algorithm

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Embodiment Construction

[0037] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0038] In order to realize the real-time and accurate diagnosis of the open-circuit fault of the sensor in the stress monitoring system of the hull structure, the algorithm of the present invention determines the judgment condition of the open-circuit fault of the sensor according to the characteristics of the data signal when the open-circuit fault occurs in the sensor, and the algorithm can It can judge the working state of the sensor in real time, and can accurately identify the sensor with open circuit fault, which can give timely feedback to the equipment operation or maintenance personnel.

[0039] The reasons for the open circuit failure of the sensor include sensor breakage, sensor d...

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Abstract

The invention belongs to the field of hull structure stress monitoring, and particularly relates to a hull structure stress monitoring system sensor open-circuit fault diagnosis algorithm. By countingthe stress real-time data acquired by the sensor arranged at the structure monitoring position within a period of time, the judgment condition of the open-circuit fault of the sensor is determined according to the characteristics of the measured stress data signal, and the real-time effective diagnosis of the open-circuit fault of the sensor of the hull structure stress monitoring system is achieved. According to the algorithm, the working state of the sensor can be accurately judged in real time, the sensor with an open-circuit fault can be effectively identified, and timely warning is givento equipment operation or maintenance personnel.

Description

technical field [0001] The invention belongs to the field of hull structure stress monitoring, in particular to a sensor open circuit fault diagnosis algorithm of a hull structure stress monitoring system. Background technique [0002] The strength of the hull structure is one of the main factors affecting the safety of the ship. For ships navigating in the actual ocean environment, the external loads on the hull structure have strong randomness. forecast. In order to ensure the safety of the ship during navigation, it is considered to install a structural monitoring system on the hull structure to conduct real-time online monitoring throughout its life cycle. [0003] The hull structure stress monitoring system is a comprehensive application of structural parameter identification technology, optical fiber sensing technology, database technology, multi-data information fusion technology, super large amount of information data processing technology, hull structure finite ele...

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Application Information

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IPC IPC(8): G01M5/00
CPCG01M5/005
Inventor 李陈峰刘玉杰周学谦任慧龙冯国庆许维军孙士丽刘宁李文君孙树政
Owner HARBIN ENG UNIV
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