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Soft-sensing method for groundwater total nitrogen concentration in rare earth mines optimized by artificial bee colony

A technology for artificial bee colony optimization and rare earth mining areas, applied in artificial life, chemical statistics, general water supply conservation, etc., can solve problems such as low soft sensor accuracy and local optimum

Active Publication Date: 2018-08-17
JIANGXI UNIV OF SCI & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the traditional artificial bee colony algorithm that is easy to fall into local optimum when optimizing the soft measurement of total nitrogen concentration in groundwater in rare earth mining areas, and the accuracy of soft measurement is not high. soft sensor method

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  • Soft-sensing method for groundwater total nitrogen concentration in rare earth mines optimized by artificial bee colony
  • Soft-sensing method for groundwater total nitrogen concentration in rare earth mines optimized by artificial bee colony
  • Soft-sensing method for groundwater total nitrogen concentration in rare earth mines optimized by artificial bee colony

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Embodiment

[0065] Step 1. Determine the rare earth mine area that needs soft measurement, and collect groundwater samples in the determined area for ZN=58 consecutive days, and test the collected groundwater samples. Water quality indicators: nitrite nitrogen, nitrate nitrogen, total phosphorus , ammonia nitrogen, water temperature, pH value, dissolved oxygen, and total nitrogen, the collected groundwater quality index data is used as a sample data set; % is set as the training data set of the support vector machine, and the last 30% is set as the test data set;

[0066] Step 2, the user initializes the parameters, and the initialization parameters include soft measurement span days FD=2, population size Popsize=50, neighborhood radius NK=5, maximum unimproved times Limit=100, and maximum evaluation times MAX_FEs=400000;

[0067] Step 3, make the current evolution algebra t=0, the number of optimal design parameters of the support vector machine D=3, and make the current evaluation times...

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Abstract

The invention discloses a soft measurement method for total nitrogen concentration in underground water in rare earth mining areas optimized by artificial bee colony. The present invention adopts the support vector machine as the soft sensor model of the total nitrogen concentration in the groundwater of the rare earth mining area, and utilizes the adaptive artificial bee colony algorithm to optimize and design the penalty factor C, the radial basis kernel parameter g and the parameter ε in the insensitive loss function of the support vector machine . In the adaptive artificial bee colony algorithm, the feedback information of the fitness value is used to adaptively adjust the search scaling factor, and the information of the neighborhood optimal individual and the global optimal individual is fused into the Gaussian mutation strategy to adaptively generate new individuals . The invention can improve the soft measurement accuracy of the total nitrogen concentration in the underground water of the rare earth mining area.

Description

technical field [0001] The invention relates to the field of measurement of total nitrogen concentration in groundwater, in particular to a soft measurement method for total nitrogen concentration in groundwater in rare earth mining areas optimized by artificial bee colony. Background technique [0002] The southern region of my country is rich in ionic heavy rare earth resources, and heavy rare earths are indispensable raw materials in modern industrial production. At present, the mining of ionic rare earth resources generally uses the in-situ leaching process. The process is to drill some liquid injection holes on the ionic rare earth mine, and then inject the chemical solution into the mine through the liquid injection holes. However, during the mining of ionic heavy rare earth resources, these chemical solutions injected into the mine will gradually seep into the ground, causing groundwater pollution. The pollution control of groundwater in ion-type rare earth mining a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06N3/00G06K9/62
CPCG06N3/006G16C20/70G06F18/2411Y02A20/152
Inventor 郭肇禄何进荣杨火根邓志娟刘小生周才英邹玮刚
Owner JIANGXI UNIV OF SCI & TECH
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