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Method for image on-line measurement of river silt sediment concentration

A sand content and image technology, which is applied in the direction of testing moving fluid/granular solids, etc., can solve the problems of cumbersome detection process, long measurement cycle, hindering timely prediction and forecasting of floods and drought disasters in mountainous areas, and achieves convenient implementation and simple operation , the effect of low labor intensity

Inactive Publication Date: 2009-07-15
彭宣戈
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Problems solved by technology

For a long time, the methods of measuring river sediment concentration at home and abroad require a long measurement period, the detection process is cumbersome, the sampling process of hydrological staff is labor-intensive, and it is not conducive to the continuous measurement and real-time detection of sediment concentration data. There is no one good method for measuring sediment content
At present, online real-time monitoring of water level and flow has been realized, but the monitoring of river sediment concentration is still in a backward state, which affects the speed of intelligent development of online real-time monitoring of mountain hydrology (water level, flow, sediment concentration) data, and seriously hinders Timely forecasting of floods and droughts in mountainous areas

Method used

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  • Method for image on-line measurement of river silt sediment concentration
  • Method for image on-line measurement of river silt sediment concentration

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Embodiment Construction

[0014] Such as figure 1 , figure 2 As shown, the present invention is realized in such a way that the diversion tank 2 fixed with the imaging device 1 is put into the river, and the river silt flowing through the diversion tank 2 is photographed, and the image data captured by the communication line are captured. The image acquisition and processing subsystem 3 in the computer transmitted to the control center uses computer image processing software for the acquired images to apply various image processing methods such as edge enhancement, threshold segmentation, image binarization processing, and image morphology methods. According to the technical standard of river sediment content, the characteristic analysis is carried out. According to the characteristic analysis results and the algorithm model, establish the corresponding database, calculate the sand concentration according to the mathematical model, and transmit it to the upper computer 4 for management and decision-m...

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Abstract

The invention provides an image on-line sediment concentration measurement method of river sediment, comprising: sampling the image of river sediment, transferring the image, processing the image, calculating the sediment concentration based on the mathematical model. The features of the measurement method are: simple operation, convenient implementation, less labor intensity during sapling the image by the workman, continuous measurement and real-time detection of the sediment concentration, establishment of mathematics data and acquisition of sediment concentration data good for the timely prediction of the mountain land flood and drought in the future.

Description

technical field [0001] The invention relates to a method for measuring the sediment content of rivers, in particular to an image online method for measuring the sediment content of rivers. Background technique [0002] The distribution, diffusion, and settlement of sediment concentration affect ports, waterways and ecological environment, so the measurement of sediment concentration is a very critical issue for the research of ecological environment, marine and near-shore engineering. For a long time, the methods of measuring river sediment concentration at home and abroad require a long measurement period, the detection process is cumbersome, the sampling process of hydrological staff is labor-intensive, and it is not conducive to the continuous measurement and real-time detection of sediment concentration data. There is no one good method for measuring sediment content. At present, online real-time monitoring of water level and flow has been realized, but the monitoring o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/85
Inventor 彭宣戈孙红军冷明朱兵周旭艳孙凌宇黄凤玲
Owner 彭宣戈
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