Water quality element concentration detection method based on unmanned aerial vehicle spectrum

Abstract

The invention discloses a water quality element concentration detection method based on an unmanned aerial vehicle spectrum, and belongs to the technical field of water quality monitoring. The methodcomprises the steps that a target area is determined, target elements are determined, and sampling points are distributed in the target area; a multi-spectral camera is carried by adopting an unmannedaerial vehicle, and the sampling points are photographed in the sky above the target area so as to obtain corresponding images; the corresponding images are subjected to software analysis so as to obtain spectral characteristic data, and the corresponding spectral parameters at the sampling points are acquired through data calculation; the spectral parameters with the highest correlation with allthe target elements in the water quality are acquired through correlation analysis; an inversion model of each target element in the water quality is determined; and the spectral parameters with thehighest correlation with the target elements are input into the target element inversion models, and the output values are the concentration contents of the corresponding target elements. According tothe method, unmanned aerial vehicle remote sensing and water quality monitoring are combined, equipment involved in the whole inversion process of the water quality elements comprises the unmanned aerial vehicle and the spectral camera, and therefore the detection process is simpler and more convenient, the operation is simple, and the accuracy is high.

Description

technical field [0001] The invention belongs to the technical field of water quality monitoring, and in particular relates to a method for detecting the concentration of water quality elements based on the spectrum of an unmanned aerial vehicle. Background technique [0002] At present, affected by human activities, the pollution of water resources is becoming more and more serious, and nearly half of the water resources are seriously polluted. The prevention and control of water pollution in the current urban environment is the top priority of ecological environment governance. In the past few decades, due to the guarantee of basic living needs and the excessive pursuit of economic development speed, the overall ecological environment of our country has been damaged. damage, especially the overall water environment has been continuously deteriorated. At present, my country's water quality monitoring mainly relies on manual monitoring. Manual monitoring is carried out throu...

AI Technical Summary

Problems solved by technology

However, what water quality inversion requires is the spectral reflectance obtained by the water surface being irradiated by sunlight, which requires more spectral band information, which cannot be satisfied by general sensors, and requires a special multi-spectral sensor to obtain data

However, in the existing technology, when using UAV remote sensing technology for water quality monitoring, it often relies too much on satellite data and cannot obtain real-time data, resulting in inaccurate water quality monitoring.

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