A Two-dimensional Water Pollution Source Location Method Based on Improved Bacterial Chemotaxis Algorithm

A technology of water pollution source and positioning method, applied in the direction of testing water, material inspection products, etc., can solve the problems such as the distance limit that sensor nodes can move, achieve the effects of reducing the exploration range, stabilizing energy consumption, and improving battery life

Active Publication Date: 2020-09-25
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a two-dimensional water pollution source location method based on an improved bacterial chemotaxis algorithm, aiming at the defect that the movable distance of sensor nodes in the prior art is limited by energy

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  • A Two-dimensional Water Pollution Source Location Method Based on Improved Bacterial Chemotaxis Algorithm
  • A Two-dimensional Water Pollution Source Location Method Based on Improved Bacterial Chemotaxis Algorithm
  • A Two-dimensional Water Pollution Source Location Method Based on Improved Bacterial Chemotaxis Algorithm

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Embodiment Construction

[0037] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0038] Please refer to figure 1 , which is an overall flowchart of the present invention, a two-dimensional water pollution source location method based on an improved bacterial chemotaxis algorithm proposed in the present invention, specifically includes the following steps,

[0039] S1. In a polluted water area, select a test area; in this embodiment, the water environment is set in an area of ​​2000×2000m, the concentration distribution of pollutants in the water environment conforms to the Gaussian distribution, and the maximum concentration of the pollution source center is set to 800m , the coordinate position of the pollution source (x 0 ,y 0 ) is fixed at (1000, 1000). specific reference figure 2 Distribution...

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Abstract

The invention discloses a 2D water pollution source positioning method based on an improved bacteria chemotactic algorithm. A movement scheme of a mobile sensor in the unknown environment is provided,the scheme is based on the bacteria chemotactic foraging algorithm, and a single sensor node like an Escherichia coli moves towards a more suitable place with higher concentration. Energy-saving andnode energy consumption stability are taken as evaluation indexes, the node is lower in energy consumption in the movement process, and the service life of a node battery is longer. The pollutant concentration collected by sensors, the pollutant concentration gradient in the movement direction and the residual energy of the node battery serve as motion controlling quantities for the mobile sensor,the quantities are used to adjust the sensor motion time, movement speed and rotation angle, and the pollution source can be found rapidly in an energy-saving way. According to experiments, the pollution source is located rapidly, node energy consumption is stable, and the service life of the node battery is prolonged.

Description

technical field [0001] The invention relates to the field of water pollution source location, and more specifically relates to a two-dimensional water pollution source location method based on an improved bacterial chemotaxis algorithm. Background technique [0002] Water is an important resource for human survival and the basic substance for all living things to maintain life. At the same time, it plays an important role in various fields such as industry, agriculture, and life. On the other hand, my country's overall reserves of fresh water resources are not many, and it belongs to a country that lacks water resources. Under such circumstances, as the level of industrialization in our country continues to increase, the pollution of the water environment is becoming more and more serious. We discharge untreated wastewater from industry, agriculture, and life directly into clean water resources. The seven major rivers in our country are all polluted to varying degrees. ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/18
Inventor 王勇王剑桥张祥莉陈振兴王典洪
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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