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Optical fiber grating sensing mine safe monitoring technique with novel anchoring rod as sensing medium

A technology of safety monitoring and optical fiber grating, which is applied in the field of modern mine safety monitoring and optical fiber grating sensing technology, can solve the problems of inability to carry out remote monitoring, low automation integration, and poor anti-interference ability, and achieve high automation integration and low error Small, durable effect

Inactive Publication Date: 2009-01-28
宋波
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problems of poor anti-interference ability, large error, low efficiency, low automation integration and inability to perform remote monitoring in traditional monitoring technology

Method used

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  • Optical fiber grating sensing mine safe monitoring technique with novel anchoring rod as sensing medium
  • Optical fiber grating sensing mine safe monitoring technique with novel anchoring rod as sensing medium
  • Optical fiber grating sensing mine safe monitoring technique with novel anchoring rod as sensing medium

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Embodiment Construction

[0012] Through the indoor static test, the stress-strain of the final rock block, rock block and aluminum rod is obtained Figure 5 , indicating that the monitoring accuracy of the present invention meets the requirements. For dynamic safety monitoring of mines, the location of sensors must first be arranged, and the following principles should be followed when arranging the location: the principle of effectiveness, the principle of multi-level monitoring, the principle based on geological conditions, the principle of priority monitoring of key points, no interference or less The principle of interference and the principle of economic rationality. Secondly, to process the sensing medium bolt, due to the complexity of the site environment, the sensor cannot be directly arranged outside the bolt, and the sensor needs to be packaged and protected to a certain extent, so the bolt must be processed to meet the requirements . The bolt is milled with a groove of an appropriate size...

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Abstract

The invention provides a fibre grid sensing mine safety monitoring technique which uses a novel anchor rod as sensing medium; the fibre grid is used as information transmission medium; simultaneously, the anchor with a concave trough is used for encapsulating and protecting the fibre grid so as to solve the problems of moist metal mine environment and severe condition; a round ring is welded at a position which has a certain distance away from the end of the anchor rod so as to protect the fibre grid sensor against the damage of external force. The safety of the mine is improved and the safe production of the mine is ensured by analysing the transmission data and monitoring the mine. The technique of the invention has the advantages of high precision, strong anti-interference capability, low cost, high automatic integration level, being convenient for arrangement and installation, simple operation, remote monitoring and long-term monitoring and the like.

Description

Technical field [0001] The invention relates to a modern mine safety monitoring technology, specifically the application of optical fiber grating sensing technology to mine safety monitoring. Background technique [0002] The mining industry is the basis for the development of other industrial industries, therefore, mining production plays a very important role in social progress and national economy. The main technical approaches and methods of safety monitoring or early warning at home and abroad have found that various methods are highly dependent on instruments or equipment with a certain special purpose, and basically belong to traditional safety monitoring technical means. Generally, there are such deficiencies: the monitoring efficiency is not high, and it is only suitable for local small-scale safety monitoring; the reliability and anti-interference of data transmission are not strong, especially in an underground mine where the natural conditions are extremely harsh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V8/00G01V8/24
Inventor 宋波
Owner 宋波
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