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Crane structure health online monitoring system under service center mode

A service center and monitoring system technology, applied in the direction of walking bridge cranes, cranes, load hanging components, etc., can solve the problems of unsuitable long-term monitoring, etc., and achieve the effect of reducing data storage pressure, high precision and good stability

Active Publication Date: 2020-12-25
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the most mature and widely used structure test sensor is the resistance strain gauge, which has the advantages of high resolution, small size, cheap price and large measurement range, but it is not suitable for long-term monitoring

Method used

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  • Crane structure health online monitoring system under service center mode
  • Crane structure health online monitoring system under service center mode
  • Crane structure health online monitoring system under service center mode

Examples

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Embodiment Construction

[0031] The present invention is explained in more detail below in conjunction with the examples and accompanying drawings, but the examples do not limit the present invention.

[0032] refer to Figure 1 to Figure 4As shown, the client monitoring site of the crane structure health online monitoring system in an embodiment of the service center mode provided by the present invention includes a bridge crane main body, a plurality of fiber grating strain sensors 1, and a fiber grating sensor demodulator 5. Optical fiber junction box 2 and on-site computer 6. There are multiple optical fiber splitters 3 inside the optical fiber junction box 2. Multiple optical fiber grating strain sensors 1 are distributed on the measuring points of the bridge crane. Multiple optical fiber grating strain sensors adopt Parallel connection, each fiber grating strain sensor is connected to the outlet end of the fiber splitter, multiple fiber grating strain sensors 1 are divided into multiple groups, ...

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Abstract

The invention relates to the technical field of optical fiber grating sensing monitoring, and provides a crane structure health online monitoring system in a service center mode. The monitoring systemcomprises a service center which is composed of a central server and a service function assembly, a monitoring system client which is composed of a plurality of fiber bragg grating sensors, a fiber bragg grating sensing demodulator, an optical fiber junction box, an on-site computer and a client-side server, and a matched software system, wherein a plurality of optical fiber branching devices arearranged in the optical fiber junction box, and the plurality of optical fiber grating sensors are distributed on measuring points of the crane. According to the system, the structure health condition of the crane in operation can be monitored on line in real time, safe operation of the crane is guaranteed, structure safety assessment is completed by combining a pre-warning mechanism, quantitative data and safety guarantee are provided for use, maintenance and lightweight design of the crane, and the energy-saving performance and the economical efficiency of the crane are improved.

Description

technical field [0001] The invention relates to the technical field of fiber grating sensor monitoring, in particular to an online crane structure health monitoring system in a service center mode. Background technique [0002] As an indispensable type of port lifting and handling machinery, cranes have the characteristics of strong lifting capacity and high operating efficiency, and are widely used in major equipment manufacturing and logistics transportation industries. With the rapid development of port logistics, the operating frequency and intensity of cranes are also gradually increasing, and their safety performance is also increasingly concerned by people. [0003] At present, in order to ensure the safety performance of the crane, the designers reserve a large safety factor margin in the design, which makes the crane heavy and bulky. While ensuring the safety of the crane operation, it also increases the energy consumption of its operation. Therefore, it is of gre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/16B66C17/00
Inventor 徐承军李俊朋张娟娟
Owner WUHAN UNIV OF TECH
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