Health monitoring and early warning system and method for operating tunnels based on distributed optical fiber sensing

A distributed optical fiber and health monitoring technology, applied in the direction of earth drilling, mining equipment, mining equipment, etc., to achieve the effects of improved accuracy, stable performance, and light weight

Active Publication Date: 2017-09-29
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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  • Health monitoring and early warning system and method for operating tunnels based on distributed optical fiber sensing
  • Health monitoring and early warning system and method for operating tunnels based on distributed optical fiber sensing
  • Health monitoring and early warning system and method for operating tunnels 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 a health monitoring and early warning system and method for operating tunnels based on distributed optical fiber sensing. The system includes an early warning subsystem, a data processing subsystem, a wireless transmission subsystem, a data acquisition subsystem and an optical fiber sensing subsystem; The acquisition subsystem conducts real-time online monitoring of the tunnel site through the optical fiber sensing subsystem, obtains the real-time monitoring signal of the tunnel, and converts the real-time monitoring signal of the tunnel into an electrical signal; the wireless transmission subsystem collects and converts the electrical signal obtained by the data acquisition subsystem Carry out long-distance transmission to the data processing subsystem; after the data processing subsystem receives the electrical signal sent by the wireless transmission subsystem, it compares the electrical signal with the predetermined threshold of the data processing subsystem, and passes the comparison result through the early warning subsystem Do early warning tasks. The invention has the advantages of low cost, convenient construction, strong anti-interference ability, strong space applicability, high degree of automation and high 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...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F17/18
Inventor 薛晓辉童波高荣申俊敏张军
Owner TAIYUAN UNIV OF TECH
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