Unlock instant, AI-driven research and patent intelligence for your innovation.

A dynamic monitoring method and system for floodgates of high dam and large reservoir hydropower stations

A flood gate and dynamic monitoring technology, which is applied to measuring devices, instruments, optical devices, etc., can solve problems such as measurement difficulties

Active Publication Date: 2018-09-11
HUANENG LANCANG RIVER HYDROPOWER
View PDF5 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A dynamic monitoring method and system for floodgates of high dam and large reservoir hydropower stations
  • A dynamic monitoring method and system for floodgates of high dam and large reservoir hydropower stations
  • A dynamic monitoring method and system for floodgates of high dam and large reservoir hydropower stations

Examples

Experimental program
Comparison scheme
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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a dynamic monitoring method for a flood discharge gate of a high dam and large reservoir hydropower station. First, a photographic three-coordinate measurement system is installed at the gate to be measured; the gate monitoring image of the gate to be measured is obtained; secondly, the characteristics of the gate monitoring image are calculated by the principle of triangulation The position coordinates of the marker points; then calculate the position deviation and deformation displacement of the corresponding coordinates of each monitoring image feature marker point; finally determine whether the deformation displacement exceeds the specified requirements. The present invention uses a three-dimensional photogrammetry system to detect the deformation of the gate of a hydropower station, which avoids the limitation of field conditions and measurement accuracy in the deformation measurement of the hydraulic metal structure gate prototype. The three-dimensional photogrammetry system is based on three-dimensional visual imaging technology to detect Deformation detection of hydropower station gates; this method is suitable for deformation measurement of arc-shaped working gates in flood discharge tunnels of hydropower stations, and has the advantages of simple operation, convenient data collection, and intuitive display of measurement results.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
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