Temperature measurement system of distributed optical fiber and measurement method thereof

A technology of distributed optical fiber and temperature measurement point, which is applied in the field of distributed optical fiber temperature measurement system, to achieve the effect of eliminating error interference, high fitting accuracy, and improving temperature measurement coverage density

Inactive Publication Date: 2019-06-21
STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD HARBIN POWER SUPPLY CO +1
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Problems solved by technology

Although the distributed optical fiber temperature measurement system has a large number of temperature measurement points, there are still temperature measurement blind spots outside the temperature measurement point. How to increase the temperature measurement coverage density without increasing hardware costs has become a distributed optical fiber measurement system. An important research direction of Wen

Method used

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  • Temperature measurement system of distributed optical fiber and measurement method thereof
  • Temperature measurement system of distributed optical fiber and measurement method thereof

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specific Embodiment approach

[0027] Reference figure 1 , A specific embodiment of the present invention includes:

[0028] Several optical fiber sensors 1 for detecting the temperature of the layout area;

[0029] The optical signal processing module 2 is used to process the optical signal transmitted by the optical fiber sensor 1, and calculate the temperature of the layout area;

[0030] The temperature fitting module 3 calculates the temperature of the non-arrangement area by fitting the temperature of the arrangement area;

[0031] The temperature correction module 4 is used to correct the temperature of the arrangement area and the temperature of the non-arrangement area.

[0032] A temperature measurement method of the above-mentioned distributed optical fiber temperature measurement system includes the following steps:

[0033] A. The optical fiber sensor 1 detects the temperature of the layout area;

[0034] B. The optical signal processing module 2 determines the temperature value of each point in the layou...

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Abstract

The present invention discloses a temperature measurement system of a distributed optical fiber. The system comprises: a plurality of optical fiber sensors configured to detect the temperature of an arrangement region; an optical signal processing module configured to process optical signals transmitted by the optical fiber sensors and calculate the temperature of the arrangement region; a temperature fitting module configured to perform fitting of the temperature of the arrangement region to calculate the temperature of a non-arrangement region; and a temperature correction module configuredto correct the temperature of the arrangement region and the temperature of the non-arrangement region. The defects can be overcome in the prior art, and the temperature measurement coverage temperature of the temperature measurement system of the distributed optical fiber is improved.

Description

Technical field [0001] The invention relates to the technical field of distributed optical fiber temperature measurement, in particular to a distributed optical fiber temperature measurement system and a temperature measurement method thereof. Background technique [0002] Distributed optical fiber temperature measurement technology is widely used in many fields, such as special equipment, mine tunnels, etc., due to its flexible layout and the ability to be used in flammable and explosive environments. Although the distributed optical fiber temperature measurement system has a large number of temperature measurement points, there are still temperature measurement blind areas from the temperature measurement point to the outside. How to increase the temperature measurement coverage density without increasing the hardware cost has become a distributed optical fiber measurement system. An important research direction of Wen. Summary of the invention [0003] The technical problem to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/32
Inventor 徐永峰范晓舟杨明宇金伟志郝文阔陈楠
Owner STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD HARBIN POWER SUPPLY CO
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