Distributed structural health monitoring system and method
A technology of health monitoring system and distributed structure, which is applied in the direction of measuring devices, analyzing materials, and material analysis through electromagnetic means, can solve the problems of inability to solve the contradiction between detection depth and detection sensitivity, and achieve high-efficiency detection efficiency and flexible organization Network characteristics, the effect of improving usability
Active Publication Date: 2021-01-05
北京昊鹏智能技术有限公司
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[0005] The invention provides a distributed structure health monitoring system and method, which are used to solve the problems existing in the prior art that the contradiction between detection depth and detection sensitivity cannot be resolved, and a monitoring network cannot be formed to realize real-time online monitoring of complex structures
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[0056] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0057] figure 1 A schematic structural diagram of a distributed structural health monitoring system provided by an embodiment of the present invention; figure 2 Schematic diagram of the structure of the eddy current array detection node 2 provided for the embodiment of the present invention; Figure 1-2 , and taking steel structure T-shaped welding crack monitoring as an example to introduce in detail a distributed structure health monitoring system based on eddy current array provided by this embodiment, the system includes: a communication function, data exchange function, storage and aggregation function, processing Structural health diagnosis node 1 with functions, ...
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The invention provides a distributed structural health monitoring system and method. The monitoring system comprises a structural health diagnosis node and an eddy current array detection node connected with the structural health diagnosis node, wherein the eddy current array detection node comprises a control and data processing unit, and a multi-frequency exciting signal generation unit, a coil gating unit and a data acquisition unit which are connected with the control and data processing unit; the multi-frequency exciting signal generation unit is connected with the data acquisition unit through the coil gating unit and an alternating current bridge; the coil gating unit is connected with a coil array; the control and data processing unit is connected with the structural health diagnosis node and the other eddy current array detection nodes through a first Ethernet switching unit and a first time synchronization unit respectively. According to the distributed structural health monitoring system and method provided by the invention, flexible setting of an exciting signal is realized; the efficient detection efficiency and flexible networking property between the different eddy current array detection nodes are improved, and real-time and online monitoring of a complicated structure can be realized.
Description
technical field [0001] The invention relates to the technical field of structural monitoring, in particular to a distributed structural health monitoring system and method. Background technique [0002] With the increasing attention to the safety of large equipment structures, non-destructive testing technology has become an indispensable testing method in the manufacture and use of modern structural equipment and is widely used in various fields, such as aviation, aerospace, rail transit, power production, petrochemical Storage and transportation, petroleum processing, etc. The equipment structures in these fields are usually under harsh working conditions, and are prone to wear, corrosion, fatigue cracks, creep and other damages, which in turn cause defects inside the structure and endanger the safety of the structure. Therefore, on-line, real-time, dynamic monitoring and diagnosis of these equipment structures has become an important aspect in the application of non-dest...
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IPC IPC(8): G01N27/90
CPCG01N27/904
Inventor 解建涛
Owner 北京昊鹏智能技术有限公司