Table 1 Parameter of UAV inspection systems.

UAV system

Max takeoff weight

15.5 kg

Max service ceiling above sea level

2500 m (standard propellers); 4500 m (high-altitude propellers)

Max flight time

Approx. 32 min

Max hovering time

Approx. 30 min

Max horizontal speed

18 m/s (no wind)

Max ascend speed

5 m/s

Camera

Resolution

16 MP (4608 × 3456 pixels)

Sensor size

17.3 × 13.0 mm

Pixel size

3.75 μm

Lens focal length

15 mm

ISO range

100–25,600