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An early warning method of reservoir pollution-holding capacity based on the least square method

A technology of least squares method and pollutant holding capacity, which is applied in the field of early warning of reservoir pollutant holding capacity based on least square method, which can solve the problems such as the inability to objectively reflect the pollutant holding capacity of the reservoir, the existence of subjective judgment, and the easy lack of data, so as to achieve data High objectivity and real-time effects

Active Publication Date: 2020-03-27
SICHUANG TECH CO LTD
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Problems solved by technology

The current pollution-holding capacity of the reservoir, that is, the calculation method of the pollution load of the water area pollution-holding capacity, adopts the "Calculation Regulations for the Pollution-Holding Capacity of Water Areas" GB / T 25173-2001. The investigation of data, sewage outfall data, underwater terrain data, etc. takes a long time, and the data is prone to missing and errors; the uniform mixture model, non-uniform mixture model and split model in the model calculation method need a large amount of data testing to determine the parameters , there is a certain chance; the solution and calculation of the model adopts the method of simplifying conditions and assumptions, and there are subjective judgments, and the final result cannot objectively reflect the pollution-holding capacity of the reservoir

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  • An early warning method of reservoir pollution-holding capacity based on the least square method
  • An early warning method of reservoir pollution-holding capacity based on the least square method
  • An early warning method of reservoir pollution-holding capacity based on the least square method

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] like figure 1 As shown, a method for early warning of reservoir pollution-holding capacity based on the least squares method includes the following steps:

[0029] Step S1: The water surface of the reservoir is simulated into 10 polygons with equal area, the center of the circle is obtained by using the algorithm of the largest inscribed circle of the polygon, and the location of the center of the circle is selected as the water quality monitoring point of the reservoir.

[0030] Step S2: Monitor the water quality of the high, middle and low water layers at the water quality monitoring point, and use the water quality sensor to monitor the water quality parameters online. The water quality parameters include: temperature, pH value, turbidity, oxygen content, conductivity , permanganate, ammonia nitrogen, total phosphorus and total nitrogen, chlo...

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Abstract

The invention discloses a pre-warning method for assimilative capacity of reservoirs based on a least squares method. The method comprises the following steps: (1) selecting a plurality of water quality monitoring points in a reservoir; (2) monitoring the water quality of high, middle and low water layers of the monitoring points; (3) calculating reservoir water quality parameters; (4) calculatingthe water quality parameters in the next 12 hours by utilizing least squares curve fitting based on historical reservoir water quality parameters; (5) prompting when a pre-warning value in a predicted period of time appears. According to the method provided by the invention, the function fitting is carried out after optimizing the monitoring data, and the reservoir water quality parameters in thenext 12 hours are predicted so as to provide assistant decision for the management staff.

Description

technical field [0001] The invention relates to the technical field of pollution holding in water areas, in particular to a method for early warning of the pollution holding capacity of reservoirs based on the least square method. Background technique [0002] The analysis of the pollutant-holding capacity of water areas is the basis of the total amount of water pollution control, and its quantitative accounting is of great significance to the protection of the water environment. The current pollution-holding capacity of the reservoir, that is, the calculation method of the pollution load of the water area pollution-holding capacity, adopts the "Calculation Regulations for the Pollution-Holding Capacity of Water Areas" GB / T 25173-2001. The investigation of data, sewage outfall data, underwater terrain data, etc. takes a long time, and the data is prone to missing and errors; the uniform mixture model, non-uniform mixture model and split model in the model calculation method ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/18
Inventor 徐能通庄佳宝单森华
Owner SICHUANG TECH CO LTD
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