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Method and system for conducting remote infrared temperature measurement on coal pile surfaces

An infrared temperature measurement, long-distance technology, applied in radiation pyrometry, measurement devices, optical radiation measurement and other directions, can solve the problem of increasing weather effects, and achieve the effect of improving accuracy

Active Publication Date: 2013-01-02
CHINA SHENHUA ENERGY CO LTD +2
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Problems solved by technology

[0003] The current infrared imaging temperature measurement technology often focuses on the characteristics of the infrared imaging system itself, as well as on the processing of digital infrared images. The longer the path of infrared radiation transmission, the greater the impact of weather on infrared imaging temperature measurement

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  • Method and system for conducting remote infrared temperature measurement on coal pile surfaces
  • Method and system for conducting remote infrared temperature measurement on coal pile surfaces
  • Method and system for conducting remote infrared temperature measurement on coal pile surfaces

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, and these descriptions are not intended to limit the scope of the present invention.

[0018] figure 1 A method for remote infrared temperature measurement of the surface of a coal stack according to one embodiment of the present invention is shown. Such as figure 1 As shown, the method comprises the following steps 1.1 to 1.5:

[0019] Step 1.1: Take the infrared radiance map L0 of the coal pile under test;

[0020] Step 1.2: Calculate the reflection intensity L of the measured coal pile at the time of shooting f , Large-scale radiance L C and atmospheric transmittance τ;

[0021] Step 1.3: According to the result of step 1.2, remove the reflection component and atmospheric radiation component of the measured coal pile from the infrared luminance map to obtain the infrared radiance map L after removing the weather effect M ; This step 1.3 incl...

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Abstract

The invention provides a method and a system for conducting remote infrared temperature measurement on coal pile surfaces. The method comprises steps of 1.1 photographing an infrared radiance image of a coal pile to be measured; 1.2 calculating reflected intensity, atmosphere radiance and atmospheric transmittance of the coal pile to be measured at the photographing moment; 1.3 removing reflection components and atmospheric radiation components of the coal pile to be measured from the infrared radiance image in accordance with results of the step 1.2 and obtaining an infrared radiance image after weather effect removal; 1.4 determining emissivity data of the coal pile to be measured at the photographing moment; and 1.5 determining the surface temperature of the coal pile in accordance with the emissivity data and the infrared radiance image after weather effect removal. By the aid of the method, the accuracy of coal pile temperature measurement is improved.

Description

technical field [0001] The invention relates to a method and system for long-distance infrared temperature measurement on the surface of coal stacks. Background technique [0002] The essence of infrared imaging temperature measurement technology is: because infrared targets (such as coal piles) are constantly radiating and reflecting energy outward, the radiated and reflected energy is transmitted through atmospheric radiation and reaches the infrared imaging system. The infrared imaging system uses infrared detection The detector and optical imaging objective lens receive the radiation image of the infrared target, convert the radiation energy into an electrical signal, and then convert it into a digital image corresponding to the radiation distribution of the infrared target through the subsequent imaging electronics system, and then convert the infrared radiation brightness and temperature , then the surface temperature of the infrared target can be calculated. [0003]...

Claims

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Application Information

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IPC IPC(8): G01J5/00
Inventor 谷红伟许文海梁建兵董丽丽杨精志李瑛王淑英缪希伟高广亮白增辉石磊
Owner CHINA SHENHUA ENERGY CO LTD
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