Distributed optical fiber temperature sensing system capable of automatically configuring parameters and configuration method thereof

A technology of distributed optical fiber and configuration method, which is applied in the direction of physical/chemical change thermometers, thermometers, measuring devices, etc., can solve the problems of large manpower and material resources, improve accuracy, reduce work difficulty and cost, and reduce downtime and the effect of times

Inactive Publication Date: 2012-09-12
HANGZHOU TECH
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  • Abstract
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Problems solved by technology

The parameters of each channel need to be manually configured, and the cost of manpower and material resources is quite large

Method used

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  • Distributed optical fiber temperature sensing system capable of automatically configuring parameters and configuration method thereof
  • Distributed optical fiber temperature sensing system capable of automatically configuring parameters and configuration method thereof
  • Distributed optical fiber temperature sensing system capable of automatically configuring parameters and configuration method thereof

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.

[0026] Example. An embodiment of a distributed optical fiber temperature sensing system that automatically configures parameters: the block diagram of the system is as follows figure 1 As shown, it mainly includes a system shell 9, the system shell 9 has a built-in laser 1, the input end of the laser 1 is connected to the output end of the laser driver module 2, the output end of the laser 1 is connected to the input end of the optical splitting filter module 3, and the optical splitting filter The output end of module 3 is connected with the input end of optical switch 4 and the input end of two photoelectric conversion modules 5 respectively, the output end of optical switch 4 is connected with optical fiber 10, can connect N optical fibers 10 (N is an integer, greater than equal to 1), the outpu...

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Abstract

The invention discloses a distributed optical fiber temperature sensing system capable of automatically configuring parameters and a configuration method thereof. The system comprises a system shell, a laser, a laser driving module, a beam-splitting filter module, an optical switching switch, a photoelectric conversion module, a signal processing module, a data acquisition unit and a computer processing unit. The method comprises the following steps of: collecting data of each optical channel; judging optical fiber information in the optical channels and automatically configuring parameters of the optical channels according to the acquired information; and transmitting the data acquired in the step A and performing automatic compensation of loss deviation. The distributed optical fiber temperature sensing system capable of automatically configuring parameters and the configuration method thereof provided by the invention has the advantages that the parameters in each channel are automatically configured, the various parameters are not required to be debugged by professionals, and lots of manpower and material resources are saved; the optical fiber connectors and optical fiber laying quality can be automatically judged, and the problems are rapidly discovered and positioned; and moreover, the optical fiber transmission loss can be automatically and accurately compensated, and the temperature calculation accuracy is improved.

Description

technical field [0001] The invention relates to an optical fiber temperature sensing system and a configuration method, in particular to a distributed optical fiber temperature sensing system and a configuration method for automatically configuring parameters. Background technique [0002] The distributed optical fiber temperature sensing system uses optical time domain reflection technology and Raman scattering technology to detect temperature information at all positions along the optical fiber laying line. The longest single-channel connected optical fiber length reaches 30km, so it is widely used in tunnels, coal mines, power Systematic fire early warning and alarm, and real-time temperature monitoring in petroleum and petrochemical industries have become the development trend of temperature monitoring technology and have broad market prospects. [0003] The existing distributed optical fiber temperature sensing system consists of two parts: a host and an optical fiber. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/32G01K11/324
Inventor 张文平张文生胡文贵祝海钟孙忠周王剑锋
Owner HANGZHOU TECH
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