Method for monitoring and early warning water bloom in small water area based on image processing

Abstract

The invention provides a method for monitoring and early warning water bloom in a small water area based on image processing, which relates to a method for monitoring and early warning water bloom in a small water area. In the invention, a camera and a computer are used for realizing the purposes of monitoring and early warning the water bloom in the small water area through calculation according to programs. The invention has the characteristics of simple monitoring equipment, strong environment adaptive capacity, small algorithmic calculated amount, high speed, low requirements for hardware, flexibility, convenience, low cost, convenient maintenance and the like, can be directly embedded with the existing water surface video monitoring system or can be developed into embedded equipment or can directly operate on the computer, and can realize the purpose of quickly and effectively early warning the water bloom in real time. The invention can be widely used for monitoring and early warning the water bloom in small water areas such as upstream reservoirs of rivers, reservoirs used as sources of drinking water of towns, river reaches in water taking areas of towns, rivers, lakes or landscape water areas where the water bloom often occurs, and the like.

Description

technical field [0001] The invention belongs to the technical field of water environment monitoring, and in particular relates to small water areas (namely, rivers, upstream reservoirs of rivers, reservoirs of urban drinking water sources, river sections of urban water intake areas, rivers, rivers, lake areas and landscape water areas where algal blooms often occur) Water bloom monitoring and early warning method. Background technique [0002] In recent years, with the rapid development of industry and science and technology, a large number of industrial, agricultural and domestic wastes containing a large amount of nitrogen and phosphorus have been discharged into the water, resulting in eutrophication of fresh water in rivers, rivers, lakes and other waters and the outbreak of algal blooms ( Such as green algae bloom, cyanobacteria bloom, etc.) Water blooms have occurred in Taihu Lake, Dianchi Lake, Chaohu Lake, and Hongze Lake in China. The biggest harm caused by water bl...

AI Technical Summary

Problems solved by technology

This patent only arranges a certain number of buoys at specific positions in the measured waters to monitor different depths in the water (that is, underwater monitoring). It cannot monitor large areas of water, nor can it monitor the spread of pollutants on the water surface Regularity, distribution range, pollution degree, etc.; buoys need to be in direct contact with water bodies during monitoring, and occupy a certain amount of water space, so they are not suitable for direct application in water areas with specific functions (such as drinking water sources, landscape water areas, etc.)

Therefore, the limitations of buoy monitoring are relatively large

[0005] 2. High maintenance cost and high monitoring cost

In the practical application of this patent, specialized technicians are required to regularly go to the monitoring site to maintain the buoy, which is time-consuming and manpower-intensive, thus greatly increasing the maintenance cost

In order to obtain accurate water quality information, it is necessary to use expensive high-precision monitoring sensors, and the patent has a large number of sensors and various types, which increases the cost of monitoring

[0006] 3. Poor popularity

Due to the high cost of the patent, complex structure, strong professionalism in use, operation and maintenance, it is not conducive to popularization and use in management departments, enterprises and scientific research units

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