Method for power transmission line deicing jump vision measurement on deicing working site
A transmission line, deicing and jumping technology, which is applied in the field of visual measurement of transmission line deicing and jumping at the deicing operation site, to achieve the effect of improving speed and accuracy
Inactive Publication Date: 2018-11-30
GUIZHOU POWER GRID CO LTD
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a method for visual measurement of de-icing jump of power transmission lines at the deicing operation site, so as to solve the problem that the prior art de-icing jump measurement scheme is mostly used for simulation experiments and is not suitable for ice-coated conductors Technical issues such as the direct measurement of the motion parameters of the wire deicing and jumping at the ice melting site
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[0022] A method for visual measurement of de-icing jumps of power transmission lines at an ice-melting operation site, comprising:
[0023] Step 1. Camera calibration to obtain the camera distance f;
[0024] Step 2, establishing a mathematical model for visual measurement of deicing jumps in transmission lines;
[0025] Step 3. Obtain the distance value D from the camera to the power line and the horizontal elevation angle α of the camera based on the distance measurement of the IMU and the laser range finder;
[0026] Step 4. Substituting the parameters obtained in step 3 into the mathematical model described in step 2 to obtain the deicing jump amplitude value of the transmission line.
[0027] The method for establishing the visual measurement mathematical model of the deicing jump of the transmission line described in step 2 includes:
[0028] Step 2.1. Establish a mathematical model for the visual measurement of de-icing and jumping transmission lines when shooting hor...
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The invention discloses a method for power transmission line deicing jump vision measurement on a deicing working site. The method comprises the steps of S1, calibrating a camera and obtaining image distance f; S2, establishing a power transmission line deicing jump vision measurement mathematic model; S3, obtaining a distance value D from the camera to a power transmission line and a camera horizontal elevation angle alpha based on distance measurement of IMU and of a laser rangefinder; and S4, substituting parameters obtained in the S3 into the mathematic model of the S2 to obtain a power transmission line deicing jump amplitude value. The technical problem that in the prior art, a deicing jump measurement scheme is mainly used for a simulation experiment and is not applicable to directmeasurement of a lead wire deicing jump motion parameter on a ice-covered lead wire deicing site is solved.
Description
technical field [0001] The invention belongs to the visual measurement technology of deicing jump of power transmission lines, and in particular relates to a method for visual measurement of deicing jump of power transmission lines at the deicing operation site. Background technique [0002] Due to the influence of blizzard, freezing rain and other disastrous weather, ice disaster accidents on transmission lines occur frequently, and freezing rain icing increases the load on transmission lines. Under the action of temperature, wind, mechanical external force, etc., the overhead ice-coated transmission line will de-ice and jump, and the large-scale oscillation of the transmission line will cause phase-to-phase flashover, damage to hardware and components, and even cause line tripping, disconnection and tower collapse. ACCIDENT. The existing public de-icing jump measurement schemes are mostly used for simulation experiments, and are not suitable for direct measurement of the ...
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CPCG01B11/022
Inventor 马晓红吕乾勇毛先胤黄欢曾华荣张迅许逵班国邦赵超
Owner GUIZHOU POWER GRID CO LTD