With the rapid development of China’s economy, the demand for energy is increasing, and the ultra-high-voltage and large-capacity powerlines are being greatly expanded. China’s power line corridors need to go through a variety of complex geographical environments, most of which have passed through large areas of reservoirs, lakes and mountains, which have brought many difficulties to the detection of power lines. In addition, for power lines crossing the edge of the original forest, high altitude, snow-covered areas, there are some geological disasters such as frequent landslides and mudslides along the line. In most areas, the slopes are steep and steep, and when the traffic and communication are extremely underdeveloped, the daily routine of the powerline inspection becomes a difficult task. but drone can solve this problem, powerline inspection by drone.
At present, drones power line inspection applications has been widely used, drones have the advantage of low costs, safety, flexible, fast ,and automatic flying,long distance view. The use of UAV to inspect power lines over a large area has a good application effect on early warning of natural disasters such as freezing. At the same time, high-precision video equipment is used to observe visible and infrared thermal imaging of the line, and the observation and identification and related data comparison are used to accurately find The point of occurrence of power equipment failures ensures the effective operation of power facilities. Using drones for power line inspection will greatly reduce inspection costs, improve inspection efficiency, and ensure the safety of inspection personnel.
The operation of the UAV power line inspection system mainly uses the task load: visible light video (VTR), distance photography (Photography), infrared thermal imaging, insulator detection, etc. to detect the inspection target or line, and the acquired remote sensing data can be performed. : Grid line barriers, grid line connectors are loose, missing and worn, insulators are deteriorated, cracked and dirty, parts are incorrectly overlapped, spacers are loose and damaged, wires and ground wires are worn, wires and fittings are damaged inside, wires Connection point overheating, etc.
| Fault type | Fault content |
| Tower failure | The tower is missing, the bolts are loose, the number plate is lost, the nest, the ice, the tower, etc. |
| Basic fault | The tower protection cap is buried, the fill is removed or sunk,the slope is damaged, etc. |
| Wire fault | The wire is deformed and broken, and the wear between the bar and the equalizing ring spacer is burned by the fault current, the crimping tube is overheated, and there is foreign matter, etc. |
| Overhead ground fault | Broken bone, wear, lightning strikes, foreign bodies, etc. |
| Insulator failure | Flash marks, ice coating, electric current burn, fouling self-explosion, fouling, exposed core rod, damp heat, abnormal discharge, low value zero value, etc. |
| Metal fault | Various types of clips are missing, the pressure equalizing ring is broken, the spacer rod is deformed, the displacement of the shockproof hammer is lost, etc. |
| Ground fault | Discharge burn, exposed ground wire, loose bolts, etc. |
| Pull line fault | Zipper rust, wear, slack, loss of fixture, etc. |
| Channel fault | There are stone fields, tall trees, building construction, other risk factors in the corridors |
In the process of drone automatic flying, the drone can automatically return the pictures taken by the hovering point to the management platform. After the flying is over, the system defect report is automatically formed. The user can go to the site according to the report to rectify and process the conveying equipment.
Through the UAV transmission power line inspection program, the accuracy and efficiency of the inspection are greatly improved, the human and material loss is significantly reduced, the analysis and maintenance speed is improved, the hidden dangers and failures are eliminated in time, and the transmission safety is effectively guaranteed. .
Drone Powerline inspection features:
- High efficiency, support independent inspection, and perform tasks around the clock, 40 times more efficient than traditional manual inspection.
- Low cost, low construction, maintenance and use costs.
- Easy to carry, easy to operate, vertical take-off and landing, and the requirements for landing are low. In the event of a sudden failure, it can react quickly.
- The whole carbon fiber structure design realizes industrial three-proof, high temperature and high humidity, and can still perform inspection tasks in smog, rain and snow.
- High safety, the working mode of man-machine separation avoids the line patrol personnel in a high-risk working environment; the body is small, and the automatic obstacle avoidance function can effectively prevent damage to the line.
- Power line inspection content:
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