Electric transmission line helicopter routing inspection image classification method
A classification method and transmission line technology, applied in computer parts, instruments, character and pattern recognition, etc., can solve problems such as increasing equipment costs, and achieve the effect of simplifying fault detection and identification.
Active Publication Date: 2013-07-10
HANGZHOU JIESHANG SMART GRID TECH CO LTD
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[0004] Patents "A GPRS-based Transmission Line Icing Monitoring Device (Authorized Publication Number: CN201527279U)", "A Transmission Line Tower Line System Status Monitoring Device (Publication Number: CN102042885A)", "Intelligent Transmission Line Comprehensive Online Monitoring Device ( Authorized Publication No.: CN2016808529U), "Transmission Line Crossover Monitoring Device (Authorized Publication No.: CN202421411U)", "Real-time Monitoring Device for High-Voltage Transmission Lines (Publication No.: CN102624098A)", "A Vertical Span Measurement Device for Transmission Lines ( Authorized Publication No.: CN202522221U) "Analyze and record the status of towers and wires, such as icing, galloping, breeze vibration, vertical arc, cross spanning and tower inclination, by setting a variety of sensors on towers and wires state, to monitor the transmission line; this method needs to install multiple sensors on each section of wire and each tower pole, which increases the cost of equipment
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[0025] The present invention will be further described below in conjunction with drawings and embodiments.
[0026] It is known that the visible light image I taken by the helicopter inspection has a width of Width and a height of Height, according to figure 1 , the classification method is as follows:
[0027] Step 1: Carry out LoG transformation to input image I, to extract the strip shape in the image, obtain strip mask BarMask; LoG transformation, namely known Laplace-Of-Gaussian transformation;
[0028] ,
[0029] Step 2: For the image under the strip mask, use the usual edge detection method to extract the edge, such as the Canny edge detection method; use the Hough transform method for the edge, such as the GradientProgressiveProbabilisticHough transform, to detect the straight line segment; according to the direction of the straight line segment, Quantity and length, to determine whether there are towers in image I.
[0030] The judgment method is as follows:
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The invention relates to an electric transmission line helicopter routing inspection image classification method. Traditional manual inspection is multiple in potential safety hazards and low in efficiency. According to the method, firstly, LoG transformation is conducted on an input image I to extract bar-type shapes in the image and obtain a BarMask; secondly, an edge is extracted to the image under the BarMask by using an edge detecting method, straight line sections of the edge are detected by using a Hough transformation class method, the fact that whether a pole exists in the image I is judged according to direction, number and length of the straight line sections; then the fact that whether the image under the BarMask is a guide line image is judged; and finally the fact that whether element components or other objects are on a guide line is judged. The electric transmission line helicopter routing inspection image classification method can classify and filter a large number of routing inspection images, and simplifies subsequent fault detect and identification works achieved by manual work or software.
Description
technical field [0001] The invention belongs to the technical field of intelligent patrol inspection of power grid transmission lines, and relates to an image classification method for helicopter patrol inspection of power transmission lines. Background technique [0002] Transmission lines have to pass through various complex geographical and meteorological environments, which brings great difficulties to the daily inspection of transmission lines. Traditional manual inspections have many potential safety hazards and low efficiency. In recent years, people have devoted themselves to the development of intelligent transmission line inspection methods. [0003] The patent "Inspection Method for High-Voltage Line Operation Status (Publication No.: CN102097765A)" uses a device that can be wirelessly and remotely controlled to walk on overhead ground lines to carry camera equipment for equipment inspection; this device is still in the experimental stage and has not been widely ...
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IPC IPC(8): G06K9/62
Inventor 尚凌辉王亚利高勇刘强
Owner HANGZHOU JIESHANG SMART GRID TECH CO LTD
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