The technology of power transmission lines diagnostics by remote sensing was developed by JSC «CST» to determine:
- planned geodesic coordinates of the supports
- span lengths;
- angles of the line rotation
- temperature anomalies (insulators, cables and other objects);
- mechanical damage;
- determination of the geometry of the underlying power line surface (forest cover, other vegetation);
- analysis of the intersection with utilities (roads, pipelines, etc.) in order to determine and analyze the current state.
Equipment
For the work of JSC «CST», a high-performance complex of aircraft-based equipment “Veyer” was developed. The scanner_is designed to obtain an image of the underlying surface in the infrared part of the spectrum. Scanning takes place from an AN-72 aircraft from a height of 3000 meters.
Technical parameters of "Veyer" infrared scanner
Parameter | Value |
Spectral channels number | 1 |
Spectral range, μm | 8-14 |
Spatial resolution from 3000 meters altitude, cm | 60х80 |
Scanning span, km | 2.4 |
Noise-equivalent temperature difference at 300 K, NEDT, К | 0.15 |
Dimentions | 460х570х350 |
Mass, kg | 40 |
Poweer voltage, V | 27 |
Power consumption, W | 640 |
Quantization bit depth | 12 |
Mode | Continuous imaging with at least 15% overlay up to 600 km/h from 3000 meters altitude |
Cooling system | Cryocooler |
Infrared scanner "Veyer" appearance , upper casing dismantled
Transmission line monitoring example
Long-stretch engineering utilities identification example
GIS "Digitizer" output example
Transmission lines diagnostics technology and airborn scanner software components are patented in Russia.
Patent №2258204
"Method of remote inspection of electric circuits by means of thermal video camera"