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Calculation method for detecting flow of section of river in non-contact manner

A non-contact, calculation method technology, applied in the direction of measuring flow/mass flow, measuring device, liquid/fluid solid measurement, etc., can solve the problem that direct measurement and contact measurement are difficult to implement, the measurement range is small, and all-weather measurement cannot be achieved and other issues, to achieve the effect of accurate flow, accuracy improvement, and accurate calculation

Inactive Publication Date: 2017-04-26
GUANGXI NORMAL UNIV
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Problems solved by technology

However, when the external environment is harsh, such as typhoons, floods, etc., direct measurement and contact measurement are difficult to implement, and all-weather measurement cannot be achieved, and the selection of measurement points must be repeatedly demonstrated whether the water environment is suitable for measurement. small measuring range

Method used

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  • Calculation method for detecting flow of section of river in non-contact manner
  • Calculation method for detecting flow of section of river in non-contact manner
  • Calculation method for detecting flow of section of river in non-contact manner

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Embodiment Construction

[0058] The present invention will be further described below in conjunction with accompanying drawing:

[0059] figure 1 Is the top view of the radar detection. In the actual test operation, according to the change of the river water level and the characteristics of the water season during the test period, a place is selected as the radar erection site. From figure 1 It can be seen that radar #11 is irradiated towards the upper reaches of the river, and the flowing water is moving towards the radar.

[0060] figure 2It is a flow chart of calculating the cross-section flow of a river using the present invention. When using the non-contact method to study the hydrological parameters of the section, the main data basis is the surface flow velocity of the section. Based on the detection target, the present invention assumes that the water flow in the detection section is a constant flow. Steady flow generally depends on the three variables x, y, and z, which is the so-calle...

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Abstract

The invention relates to a calculation method for detecting the flow of the section of a river in a non-contact manner. The method includes the following steps that: step 1, a radar is adopted to detect river surface flow data; step 2, open channel flow cross section flow rate distribution is calculated; step 3, a relationship between a surface flow rate and a water depth is determined; step 4, a relationship between the surface flow rate and the average flow rate of the section is determined; and step 5, the total flow of the section is calculated. According to the calculation method of the invention, a radar remote sensing non-contact measurement method is adopted, so that good maneuverability, flexibility and real-time performance can be realized, and highest detection efficiency can be achieved with smallest measurement cost, a widest detection range can be realized, and measurement can be performed in a non-water-contact manner; and therefore, the calculation method is competent for hydrological surface information measurement under complex geological conditions and external adverse weather conditions.

Description

technical field [0001] The invention relates to the technical field of flow monitoring, in particular to a calculation method for non-contact detection of river section flow. Background technique [0002] In the prior art, the methods for water body measurement can be divided into direct measurement and contact measurement according to the way of data acquisition. Direct measurement and contact measurement mainly adopt the method of putting measuring instruments into the target water body to obtain the relevant hydrological parameter information of the water body, such as using current meters, current meters, buoys, etc. However, when the external environment is harsh, such as typhoons, floods, etc., direct measurement and contact measurement are difficult to implement, and all-weather measurement cannot be achieved, and the selection of measurement points must be repeatedly demonstrated whether the water environment is suitable for measurement. The measuring range is small...

Claims

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Application Information

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IPC IPC(8): G01F1/00G01F1/66
CPCG01F1/002G01F1/66Y02A90/30
Inventor 李自立唐璐殷安云
Owner GUANGXI NORMAL UNIV
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