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Operation tunnel health monitoring and early warning system and method based on distributed optical fiber sensing

A distributed optical fiber, health monitoring technology, applied in earth-moving drilling, mining equipment, mining devices, etc., to achieve stable performance, reduced bit error rate, and light weight.

Active Publication Date: 2015-11-25
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0004] Aiming at the problems existing in the existing operating tunnel health monitoring and early warning technology, the present invention provides an operating tunnel health monitoring and early warning system and method based on distributed optical fiber sensing with high early warning accuracy and strong anti-interference ability

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  • Operation tunnel health monitoring and early warning system and method based on distributed optical fiber sensing
  • Operation tunnel health monitoring and early warning system and method based on distributed optical fiber sensing
  • Operation tunnel health monitoring and early warning system and method based on distributed optical fiber sensing

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Embodiment Construction

[0035] The system of the present invention and its control method are described in further detail below in conjunction with the accompanying drawings and specific embodiments:

[0036] see figure 1 , figure 2 , image 3 , the present invention provides an operational tunnel health monitoring and early warning system based on distributed optical fiber sensing, including an optical fiber sensing subsystem 1, a data acquisition subsystem 2, a wireless transmission subsystem 3, a data processing subsystem 4, and an early warning subsystem 5 The optical fiber sensing subsystem 1 is laid on the concrete surface of the tunnel lining; the data acquisition subsystem 2 conducts real-time online monitoring of the tunnel site, and converts the monitoring signal into an electrical signal; the wireless transmission subsystem 3 transmits the electrical signal to the tunnel monitoring The indoor data processing subsystem 4; the data processing subsystem 4 compares the monitoring data with ...

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Abstract

The invention relates to an operation tunnel health monitoring and early warning system and method based on distributed optical fiber sensing. The system comprises an early warning subsystem, a data processing subsystem, a wireless transmission subsystem, a data collecting subsystem and an optical fiber sensing subsystem. The data collecting subsystem is used for carrying out real-time online monitoring on a tunnel field through the optical fiber sensing subsystem, obtaining tunnel real-time monitoring signals and converting the tunnel real-time monitoring signals into electric signals. The wireless transmission subsystem is used for transmitting the electric signals collected and converted by the data collecting subsystem to the data processing subsystem in a long-distance mode. The data processing subsystem is used for receiving the electric signals transmitted by the wireless transmission subsystem and then comparing the electric signals with a preset threshold value of the data processing subsystem, and carrying out an early warning task on the comparison result through the early warning subsystem. The operation tunnel health monitoring and early warning system and method based on distributed optical fiber sensing have the advantages of being low in cost, convenient to construct and high in anti-interference capability, space adaptability, automation degree and early warning accuracy.

Description

technical field [0001] The invention relates to a monitoring and early warning system, in particular to a health monitoring and early warning system and method for operational tunnels based on distributed optical fiber sensing. Background technique [0002] With the continuous improvement of my country's highway network and the continuous implementation of the central and western development strategy, the expressway is gradually moving towards the mountains and mountains, and the number and mileage of highway tunnels are increasing rapidly. The situation has become more and more complicated, leading to more and more diseases such as peeling of the tunnel lining, falling blocks, landslides, leakage, water gushing, etc., which have seriously affected the driving safety and reduced the service level of the tunnel. At the same time, as the number of extra-long and long tunnels continues to increase, the possibility of fires in the tunnels continues to increase. Once a fire occurs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18
Inventor 薛晓辉申俊敏张军
Owner TAIYUAN UNIV OF TECH
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