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High-dam large-reservoir hydropower station flood discharge gate dynamic monitoring method and system

A technology for flood discharge gate and dynamic monitoring, which can be used in measurement devices, instruments, optical devices, etc., and can solve problems such as measurement difficulties.

Active Publication Date: 2016-07-20
HUANENG LANCANG RIVER HYDROPOWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The technical problem to be solved is to provide a deformation measurement for metal structure gate prototype observation, which solves the phenomenon that the traditional measurement is difficult due to the limitation of on-site conditions and measurement accuracy.

Method used

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  • High-dam large-reservoir hydropower station flood discharge gate dynamic monitoring method and system
  • High-dam large-reservoir hydropower station flood discharge gate dynamic monitoring method and system
  • High-dam large-reservoir hydropower station flood discharge gate dynamic monitoring method and system

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Experimental program
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Effect test

Embodiment 1

[0119] A method for dynamic monitoring of floodgates of high dam and large reservoir hydropower stations provided in this embodiment includes the following steps:

[0120] S1: Set up a photographic three-coordinate measurement system at the gate to be measured;

[0121] S2: Obtain the gate monitoring image of the gate to be measured through the photographic three-coordinate measurement system;

[0122] S3: Calculating the position coordinates of the characteristic mark points of the gate monitoring image through the principle of triangulation;

[0123] S4: Calculate the position deviation of the corresponding coordinates of each monitoring image feature mark point;

[0124] S5: Calculate the deformation displacement of the corresponding coordinates of the feature mark points in the gate image.

[0125] S6: Determine whether the deformation displacement is greater than a preset threshold, if yes, send an early warning signal; if not, return to step S2 and repeat the cyclic mo...

Embodiment 2

[0222] A method for dynamic monitoring of floodgates of high dam and large reservoir hydropower stations provided in this embodiment includes the following steps:

[0223] S1: Set up a photographic three-coordinate measurement system at the gate to be measured;

[0224] S2: Obtain the gate monitoring image of the gate to be measured through the photographic three-coordinate measurement system;

[0225] S3: Calculating the position coordinates of the characteristic mark points of the gate monitoring image through the principle of triangulation;

[0226] S4: Calculate the position deviation of the corresponding coordinates of each monitoring image feature mark point;

[0227] S5: Calculate the deformation displacement of the corresponding coordinates of the feature mark points in the gate image.

[0228] S6: Determine whether the deformation displacement is greater than a preset threshold, if yes, send an early warning signal; if not, return to step S2 and repeat the cyclic mo...

Embodiment 3

[0284] Such as figure 1 As shown, the dynamic monitoring method for the flood gate of the high dam and large reservoir hydropower station provided in this embodiment includes the following steps:

[0285] S1: Set up a photographic three-coordinate measurement system at the gate to be measured;

[0286] S2: Obtain the gate monitoring image of the gate to be measured through the photographic three-coordinate measurement system;

[0287] S3: Calculating the position coordinates of the characteristic mark points of the gate monitoring image through the principle of triangulation;

[0288] S4: Calculate the position deviation of the corresponding coordinates of each monitoring image feature mark point;

[0289] S5: Calculate the deformation displacement of the corresponding coordinates of the feature mark points in the gate image;

[0290] S6: Determine whether the deformation displacement is greater than a preset threshold, if yes, send an early warning signal; if not, return t...

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Abstract

The invention discloses a high-dam large-reservoir hydropower station flood discharge gate dynamic monitoring method. The method comprises the steps of: firstly, placing a shooting three-coordinate measuring system at the position to be detected of a gate; obtaining a gate monitoring image of the position to be detected of the gate; then utilizing a triangulation principle to calculate position coordinates of characteristic mark points of the gate monitoring image; then calculating position deviations and deformation displacement amounts of the coordinates corresponding to each characteristic mark point of the gate monitoring image; and finally, judging whether the deformation displacement amounts exceed a prescribed requirement. According to the invention, the three-dimensional shooting measuring system is adopted to detect the deformation state of the hydropower station gate, the problem that the deformation measurement of hydraulic metal structural gate prototype observation is limited by field conditions and restricted by measurement precision is solved, and the three-dimensional shooting measuring system detects the deformation of the hydropower station gate based on a three-dimensional visual imaging technology; in addition, the method is applicable to the deformation measurement of a hydropower station flood discharge tunnel arc-shaped gate, and the method has the advantages that the usage and operation are simple, the data collection is convenient, and the measurement result display is visual.

Description

technical field [0001] The invention relates to the field of hydropower station monitoring, in particular to a dynamic monitoring method for a flood gate of a hydropower station with a high dam and a large reservoir. The method uses a three-dimensional visual imaging system to detect the deformation of the gate of the hydropower station. Background technique [0002] There are flood discharge structures in the hydropower station, but due to the narrow site of the flood discharge structures, high water head, large flood discharge drop, large flood discharge flow, and complex and diverse scheduling operations, the discharge structures of the power station consist of multiple open flood discharge surface holes on the dam body. , multiple flood discharge middle holes, multiple empty bottom holes, multiple flood discharge tunnels on the left bank, pools behind the dam, and Erdao Dam and other parts together form a combined flood discharge energy dissipation system; therefore, high...

Claims

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Application Information

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IPC IPC(8): G01B11/16
CPCG01B11/16
Inventor 刘启文邱小弟胡木生耿红磊曹一凡龚登位郑智燊张晓东权纬太
Owner HUANENG LANCANG RIVER HYDROPOWER
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