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Method and device for measuring concentration of coal dust in mine based on data fusion

A technology of data fusion and concentration measurement, which is applied in the direction of measuring devices, suspension and porous material analysis, particle suspension analysis, etc., can solve the problem of inaccurate detection of coal dust concentration, and achieve the effect of controlling the probability of pneumoconiosis

Active Publication Date: 2014-08-06
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for measuring coal dust concentration in mines based on data fusion, aiming to solve the problem of inaccurate detection of coal dust concentration in the prior art

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  • Method and device for measuring concentration of coal dust in mine based on data fusion
  • Method and device for measuring concentration of coal dust in mine based on data fusion
  • Method and device for measuring concentration of coal dust in mine based on data fusion

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Embodiment Construction

[0051] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0052] A method for measuring coal dust concentration in mines based on data fusion, such as figure 1 shown, including the following steps:

[0053] (1) Collect the scattered light energy of the coal dust near ±8° forward and 180° backward, measure the intensity of the scattered light in the forward space to obtain the concentration of particles with a particle size of a≧5μm, and measure the intensity of the backward spatial integration to obtain Concentration of small particles with particle size a≦5μm;

[0054] In step (1), the large particle detection method is:

[0055] Using Mie light scatt...

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Abstract

The invention provides a method and a device for measuring the concentration of coal dust in a mine based on data fusion. The method comprises the steps of measuring the concentration of particles with the particle size a which is greater than or equal to 5 microns and the concentration of small particles with the particle size a which is less than or equal to 5 microns by collecting the scattering light energy near the coal dust which forwards + / - 8 degrees and backs + / - 180 degrees; preprocessing light signals; setting the number of nerve cells on a hidden layer of a nerve network; performing nerve network training identification on collected sample information to be treated so as to gradually reduce an error to be within a required range; correcting nerve network data fusion model parameters acquired by multiple layers of forward nerve networks BP according to Rosin-Rammler function distribution of the particle size of the coal dust; calculating the concentration of the coal dust in the space by inputting the concentration value of the large particles and the concentration value of the small particles into a corrected nerve network data fusion model. The method and the device realize reasonable dust measurement and control on a coal mine and have an important significance for control over the pneumoconiosis possibility of workers.

Description

technical field [0001] The invention belongs to the field of detection methods and devices for coal safety production, in particular to a method and device for measuring coal dust concentration in mines based on data fusion. Background technique [0002] In the process of coal production, due to the crushing of coal, a large number of particles are produced and float in the workplace. These particles with large particle sizes will settle under the action of gravity to form dust, and those with small particle sizes will spread with the wind and form floating dust. , will remain in the respiratory system for a long time after being inhaled by the staff, causing pneumoconiosis. In addition, coal dust can cause explosion accidents under the conditions of certain concentration and external environment (air, temperature and humidity, fire source, etc.). Therefore, it is of great significance to accurately and quickly detect the concentration of coal dust to ensure the health of c...

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Application Information

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IPC IPC(8): G01N15/06
Inventor 程学珍于永进郭春芬卫阿盈陈志巧曲银凤逄眀祥冯翠萍
Owner SHANDONG UNIV OF SCI & TECH
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