Shockproof hammer corrosion degree evaluation method based on image processing
A technology of image processing and evaluation methods, which is applied in image data processing, image enhancement, image analysis, etc., and can solve problems such as low detection efficiency, displacement and loosening of anti-vibration hammers, etc.
Active Publication Date: 2019-10-22
XI'AN POLYTECHNIC UNIVERSITY
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Problems solved by technology
At present, the research on the anti-vibration hammer is limited to its material, type, installation position and fixed wire clamp, etc. However, there are few studies on the defects of the anti-vibration hammer body, mainly relying on traditional manual line inspection, not only the detection efficiency Low, and there are security risks
Anti-vibration hammer corrosion is a common failure of the anti-vibration hammer body. A corroded anti-vibration hammer is prone to displacement, loosening, falling off and other faults, which is not conducive to the safe and stable operation of the transmission line
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[0070] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0071] The present invention is based on the evaluation method of anti-vibration hammer corrosion degree of image processing, such as Figure 1-7 As shown, follow the steps below for specific implementation:
[0072] Step 1, obtain the image I of the anti-vibration hammer by the image acquisition device installed on the unmanned aerial vehicle or inspection robot or pole tower camera 1 , and for the obtained anti-vibration hammer image I 1 Perform grayscale processing to obtain image I 2 ;
[0073] Step 2. In view of the image characteristics of high-definition anti-vibration hammer area and low-definition background area in the acquired anti-vibration hammer image, firstly image I 2 Perform local difference processing to obtain the edge image I 3 , and then highlight the edge of the anti-vibration hammer through contrast enhancement to ...
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The invention discloses a shockproof hammer corrosion degree evaluation method based on image processing, and the method specifically comprises the steps: 1, obtaining an image I1 of a shockproof hammer through image collection equipment, and carrying out the graying processing of the obtained shockproof hammer image I1, and obtaining an image I2; 2, processing the image I2 to obtain I3 and I4 insequence; 3, performing anisotropic directional derivative filtering and the like on the image I4 to obtain an edge intensity mapping image I6; step 4, acquiring a shockproof hammer area image, acquiring a shockproof hammer image I9, and finally mapping the shockproof hammer image I9 back to the image I1 to acquire a shockproof hammer image I10; and step 5, detecting the corrosion condition of theshockproof hammer. According to the method, the shockproof hammer area can be accurately separated, the location and corrosion degree of the shockproof hammer corrosion area are judged, and the method is beneficial to guiding the overhaul work of operation and maintenance personnel.
Description
technical field [0001] The invention belongs to the technical field of electric power transmission line monitoring, and in particular relates to an image processing-based method for evaluating the corrosion degree of an anti-vibration hammer. Background technique [0002] Due to its special geographical location, high-voltage transmission lines are often affected by the harsh environment in the wild. Even the breeze in nature will cause high-frequency and small-scale vibrations of the transmission wires, that is, wire breeze vibrations. Suspension points and joints of transmission wires are often worn due to this high-frequency and small-amplitude vibration, which in turn causes line faults such as broken strands and broken wires. The anti-vibration hammer is a special component designed to prevent and reduce the vibration of the transmission wire in the breeze, and has become an indispensable part of the transmission line. At present, the research on the anti-vibration ham...
Claims
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IPC IPC(8): G06T7/00G06T5/00G06T5/30G06T7/13G06T7/136G06T7/62G06T7/90
CPCG06T7/0004G06T7/13G06T5/30G06T7/136G06T7/90G06T7/62G06T5/90
Inventor 张烨黄新波章小玲伍逸群
Owner XI'AN POLYTECHNIC UNIVERSITY