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Mine roof safety evaluation method based on multi-target monitoring data fusion

A technology for monitoring data and safety evaluation, applied in mining devices, measuring devices, mining equipment, etc., can solve problems such as inaccuracy

Inactive Publication Date: 2010-08-18
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a coal mine roof safety evaluation method based on the multi-source monitoring data fusion technology based on D-S evidence theory, which can effectively eliminate uncertain factors of multi-source information, improve the accuracy of roof safety evaluation, and overcome the Defects that may affect the inaccuracy of roof safety evaluation results due to making decisions based on one monitoring information

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  • Mine roof safety evaluation method based on multi-target monitoring data fusion
  • Mine roof safety evaluation method based on multi-target monitoring data fusion
  • Mine roof safety evaluation method based on multi-target monitoring data fusion

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Embodiment Construction

[0025] The technical solution of the present invention will be specifically described below by taking three types of sensors as examples.

[0026] Suppose a coal mine roof safety monitoring system uses three sensors: M 1 -Mechanized support pressure sensor, M 2 - Roof delamination instrument, M 3 - Electromagnetic radiation instrument, the target recognition framework is S={S 1 , S 2 , S 3}, which respectively represent the three different states of roof safety: dangerous, critical, and safe. The corresponding basic probability assignments in a certain sampling period are shown in Table 2, where A represents the basic probability assignments of uncertain propositions.

[0027] Table 2 Basic probability assignments of the three types of sensors

[0028]

[0029] Combination rules via evidence theory, M 1 with M 2 Base probability M for sensor fusion 1×2 The combinations are shown in Table 3.

[0030] Table 3M 1 , M 2 Combination

[0031]

[0032] From Table 2,...

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Abstract

The invention discloses a mine roof safety evaluation method based on multi-target monitoring data fusion, mainly characterized in that the mine roof safety state is defined into three grades according to the actual production condition of a coal mine, and a frame for identifying the roof safety condition is determined; a computer fuses the elementary probability of multi-target monitoring sensordata by utilizing a data fusion model based on the D-S evidence theory to obviously show a certain state of roof safety, thereby realizing the purpose of identifying the roof safety state; and the computer analyzes the assigned value of the fused elementary probability according to the classification decision rules of the roof safety state and outputs the identifying result of the roof safety state, thereby realizing the evaluation of the mine roof safety condition. The invention establishes a conceptual framework for mine roof safety evaluation and provides information processing steps of analysis, processing, allocation, fusion and the like of multi-source data based on the D-S evidence theory, thereby greatly improving the quality and the credibility of roof evaluation index information.

Description

technical field [0001] The invention is a coal mine roof safety evaluation method based on multi-source monitoring data fusion, and belongs to the technical field of monitoring and information processing. Background technique [0002] In recent years, frequent major safety accidents in the process of coal mining have aroused widespread concern from the whole society. Among various coal mine accidents, roof accidents still rank first. Analysis of the reasons for these accidents is mainly due to the lack of effective monitoring means and information processing technology in the coal mine production process. At present, many coal mines have established a series of roof safety monitoring systems. The main monitoring methods adopted are: roof pressure monitoring, roof separation layer monitoring, electromagnetic radiation monitoring, conventional mine pressure monitoring and micro-seismic monitoring. It reflects the safety status of the roof, but there are many uncertain factor...

Claims

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Application Information

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IPC IPC(8): E21F17/18E21D15/00G01M19/00G01M99/00
Inventor 贾瑞生闫相宏谭云亮孙红梅郑永果彭延军东野长磊
Owner SHANDONG UNIV OF SCI & TECH
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