Power transmission line detection method and device

A transmission line and transmission line technology, which is applied in image data processing, instrument, character and pattern recognition, etc., can solve the influence of weather factors and the subjective factors of inspection personnel, and reduce the detection efficiency and detection accuracy of transmission lines. , the high workload of inspection personnel, etc., to improve the detection accuracy, suppress the interference of background noise and clutter, and reduce the complexity of the algorithm and the amount of calculation.

Inactive Publication Date: 2017-04-19
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +2
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Electric power inspection has always been an important issue related to the national economy and the people's livelihood, and the current main methods of electric power inspection are: manual inspection and helicopter inspection. Among them, manual inspection is easily affected by weather factors and subjective factors of inspectors, which is time-consuming and laborious , inspection efficiency is low and the risk is high; with the help of the rapid development of aerial photography and measurement technology, helicopter inspection has many advantages such as convenience, high efficiency, reliability, and not limited by geographical environment. In view of this, "helicopter inspection mainly , supplemented by manual inspection" is the development direction of inspection of high-voltage and ultra-high-voltage transmission lines in my country
However, as the geographical environment that transmission lines pass through becomes increasingly complex, there is still a need for further development and improvement of power inspection methods. The main technical difficulties in the detection and identification of current transmission lines lie in: extraction of transmission lines, automatic tracking and real-time performance monitoring
[0003] In practical applications, because the towers of the transmission line fluctuate due to terrain changes, and the transmission line itself has a certain arc, during the inspection process of the helicopter, it is necessary to manually control the pan / tilt or the pod mounted on the detection equipment , so that the transmission line is always within the viewing angle, which not only brings a high workload to the inspectors, but also further reduces the detection efficiency and accuracy of the transmission line

Method used

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  • Power transmission line detection method and device
  • Power transmission line detection method and device

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Experimental program
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Embodiment 1

[0042] see figure 1 , figure 1 It is a schematic flowchart of a detection method for a power transmission line disclosed in an embodiment of the present invention. in, figure 1 The described method can be applied in detection equipment of transmission lines. Such as figure 1 As shown, the detection method of the transmission line may include the following operations:

[0043] 101. Perform an inter-frame difference operation on two adjacent frame images of the collected visible light video sequence to obtain a difference image, and perform binarization on the difference image to obtain a binary difference image.

[0044]In the embodiment of the present invention, the noise in the image is generally Gaussian noise. Before the inter-frame difference operation is performed on two adjacent frames of images, a Gaussian filter can be used to filter the image to suppress the influence of background clutter and noise. , where the Gaussian filter is a linear low-pass filter, which ...

Embodiment 2

[0087] see figure 2 , figure 2 It is a schematic flowchart of another transmission line detection method disclosed in the embodiment of the present invention. Such as figure 2 As shown, the detection method of the transmission line may include the following operations:

[0088] 201. Collect real-time images of the power transmission line to be detected by a camera to obtain a visible light video sequence.

[0089] 202. Determine whether the frame number of the current frame image in the visible light video sequence is an integer multiple of 15.

[0090] In the embodiment of the present invention, when the judgment result of step 202 is yes, the execution of step 203 is triggered; when the judgment result of step 202 is no, the current frame image is directly displayed and output.

[0091] 203. Buffer the above-mentioned current frame image and the next frame image of the above-mentioned current frame image.

[0092] 204. Call a thread processing function to perform smo...

Embodiment 3

[0108] see image 3 , image 3 It is a structural schematic diagram of a detection device for a power transmission line disclosed in an embodiment of the present invention. Such as image 3 As shown, the detection device of the power transmission line may include a differential operation module 301, a binarization module 302, an edge detection module 303, a Hough transformation module 304, a straight line segment processing module 305, a marking module 306, a display module 307, a calculation module 308 and Feedback module 309, wherein:

[0109] The difference calculation module 301 is used for performing inter-frame difference calculation on two adjacent frames of images of the collected visible light video sequence to obtain a difference image.

[0110] The binarization module 302 is used for binarizing the above difference image to obtain a binary difference image.

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Abstract

The embodiment of the invention relates to the electric power inspection technical field, and discloses a power transmission line detection method and device; the method comprises the following steps: carrying out frame difference operation between two adjacent frame images of a collected visible light video sequence so as to obtain a difference image, and binarizing same to obtain a binary difference image; using a preset threshold edge detection algorithm to carry out edge detection for the binary difference image so as to obtain an edge binary difference image; carrying out Hough conversion so as to detect linear sections; carrying out cycle iterations and screening merging for detected linear sections according to the transmission line parallel characteristics until the obtained target linear section number is smaller than a preset value, and marking and displaying same; calculating the central position of a target zone, and sending the central position to a hang cabin so as to adjust the posture of the hang cabin. The method and device can effectively improve the power transmission line detection efficiency and accuracy, thus reducing work load of inspection personnel.

Description

technical field [0001] The invention relates to the technical field of electric power inspection, in particular to a detection method and device for a power transmission line. Background technique [0002] Electric power inspection has always been an important issue related to the national economy and the people's livelihood, and the current main methods of electric power inspection are: manual inspection and helicopter inspection. Among them, manual inspection is easily affected by weather factors and subjective factors of inspectors, which is time-consuming and laborious , inspection efficiency is low and the risk is high; with the help of the rapid development of aerial photography and measurement technology, helicopter inspection has many advantages such as convenience, high efficiency, reliability, and not limited by geographical environment. In view of this, "helicopter inspection mainly , supplemented by manual inspection" is the development direction of inspection of h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/13G06T5/00G06K9/00
CPCG06T5/002G06T7/0004G06T2207/20024G06T2207/20061G06T2207/20021G06T2207/10016G06T2207/30181G06T2207/30108G06V20/13
Inventor 张贵峰张巍王诗奎吴新桥林良辉吴宇翔陈艳芳陈晓周筑博杨鹤猛张静赵克王锋张宁
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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