Displacement monitoring method for double-flat-arm derrick construction process based on computer vision

A technology of computer vision and displacement monitoring, applied in calculation, height/horizontal measurement, measuring devices, etc., can solve the problems of difficulty in displacement monitoring, and achieve the effect of long monitoring time and wide monitoring range

Pending Publication Date: 2022-04-05
JIANGSU POWER TRANSMISSION & DISTRIBUTION CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the pole-holding construction scene, the monitoring camera will move with the pole-holding structure when it is loaded, which brings greater difficulty to displacement monitoring

Method used

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  • Displacement monitoring method for double-flat-arm derrick construction process based on computer vision
  • Displacement monitoring method for double-flat-arm derrick construction process based on computer vision
  • Displacement monitoring method for double-flat-arm derrick construction process based on computer vision

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Embodiment Construction

[0058] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0059] Such as figure 1 As shown, this embodiment provides a computer vision-based method for monitoring the displacement of the construction process of double-arm holding poles, including the following steps:

[0060] (1) Install a ground camera 3 near the transmission tower body 1 to ensure that the transmission tower body 1 is clearly and recognizably imaged in the video screen of the ground camera 3, and the camera angle of view is kept fixed.

[0061] (2) A flat-arm camera is respectively installed on the trolleys of the flat arms on both sides of the holding pole, which are respectively recorded as the first flat-arm camera 4 and the second flat-arm camera 5, so that they can move with th...

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Abstract

The invention discloses a double-flat-arm derrick construction process displacement monitoring method based on computer vision, and the method comprises the steps: installing a ground camera near a tower body of a power transmission tower, and guaranteeing that the tower body of the power transmission tower is in a video image of the ground camera; loading trolleys of flat arms on the two sides of the holding pole are each provided with a flat arm camera, and it is ensured that a power transmission tower body and a holding pole tower body are located in video pictures of the flat arm cameras; through the steps of selecting a displacement monitoring point, pasting a marker, calibrating a camera, calculating the displacement of the marker at all moments, and obtaining a displacement time travel curve, power transmission tower settlement displacement monitoring, holding pole tower body displacement monitoring and holding pole flat arm displacement monitoring are respectively realized. According to the invention, the overall settlement displacement of the power transmission tower body in the construction process can be monitored, and the displacement of the tower body of the holding pole and the displacement of the horizontal arm of the holding pole under the action of wind load in the hoisting process can be monitored.

Description

technical field [0001] The invention belongs to the technical field of pole holding, and in particular relates to a computer vision-based method for monitoring displacement during the construction process of pole holding with double flat arms. Background technique [0002] During the construction of super-large transmission towers, double flat arm poles are used for component hoisting and assembly. The height of the pole structure is large and the cross-sectional size is small. Or there will still be a large deformation when subjected to a strong wind force, so it is necessary to take measures to monitor the poles during the construction process to ensure structural safety. [0003] For transmission towers, the weight of the tower body increases continuously during the assembly process, and the overall settlement of the tower body is the main monitoring content during the construction process; Rigidity, but the top of the pole-holding tower body and the flat arm may have a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/02G01C5/00G06T7/80
Inventor 李锡民王章轩赵俊杨永前戴如章戴阳张仁强朱姣徐扬沈文韬马龙余鹏丁俊峰林冬阳陈彬
Owner JIANGSU POWER TRANSMISSION & DISTRIBUTION CO LTD
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