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Urban solid waste incineration process combustion condition recognition method based on flame image color feature extraction

A flame image, color feature technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve problems such as failure to effectively remove multicollinearity

Active Publication Date: 2019-09-10
BEIJING UNIV OF TECH
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Problems solved by technology

For the high-dimensional features of burning images, literature [12] uses rough set theory to reduce the dimensionality, but this method is mainly to delete the features, and fails to effectively remove the multicollinearity between the features

Method used

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  • Urban solid waste incineration process combustion condition recognition method based on flame image color feature extraction
  • Urban solid waste incineration process combustion condition recognition method based on flame image color feature extraction
  • Urban solid waste incineration process combustion condition recognition method based on flame image color feature extraction

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Embodiment Construction

[0099] The modeling data in this article is referred to a MSWI incineration enterprise in Beijing. Take screenshots of the burning flame video at one-minute intervals. The number of samples is N=270, including 180 training samples and 90 testing samples, and the picture size is 1436*507. Cameras are installed on the left and right sides of the furnace, and the collected images are divided into left and right parts. Combined with the experience of on-site experts, the incineration conditions are divided into three types, and the flames are concentrated in the combustion section, the combustion line and the combustion section. The three working conditions are as Figure 3-Figure 5 shown.

[0100] Firstly, the dark channel prior dehazing algorithm is used to dehaze the image, parameter setting value: local block Ω=9*9, threshold r 0 = 0.1, λ = 0.95. The processing results under different working conditions are as follows: Figure 6-Figure 8 shown.

[0101] Depend on Figu...

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Abstract

The invention relates to an urban solid waste incineration process combustion condition recognition method based on flame image color feature extraction. The components of domestic urban solid waste (MSW) are complex, and domain experts usually observe flame video images according to experience to identify the combustion state of the incinerator so as to adjust the operation parameters of the MSWIprocess, so that the stable operation condition is difficult to maintain. The method comprises the following steps: firstly, carrying out defogging and denoising pretreatment on an incineration flameimage to improve image definition; then, after the image is converted into an HSV space suitable for being identified by a visual system, color moment characteristics are extracted by adopting sliding window blocks, and potential characteristics are extracted by adopting principal component analysis (PCA) so as to eliminate the colinearity among the high-dimensional color moment characteristics;and finally, taking the extracted mutually independent potential characteristics as input, and constructing a combustion condition recognition model by adopting a least square support vector machine (LSSVM) algorithm. The effectiveness of the method is verified based on actual incineration image simulation of a certain factory in China.

Description

technical field [0001] The invention belongs to the field of urban solid waste incineration. Background technique [0002] With the development of industrialization, urbanization and the improvement of people's living standards, the amount of municipal solid waste (MSW) has reached a global annual growth rate of 8%. [1][2] . MSW incineration (MSWI) power generation technology has gradually become the main way to solve the problem of "garbage siege" in my country due to its good reduction effect, fast processing speed and high energy utilization. [3] . [0003] The solid waste incineration status of the MSWI process is closely related to the safe operation of the incineration device and steam power generation device, the optimal control of the entire process operation, and the amount of pollutants generated and discharged. At present, there are still many urgent problems to be solved in MSWI in developing countries [4] , the most prominent problem is that the discharge of...

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Application Information

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IPC IPC(8): G06K9/00G06K9/46G06K9/62
CPCG06V20/10G06V10/56G06F18/24
Inventor 乔俊飞段滈杉汤健
Owner BEIJING UNIV OF TECH
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