Drony SIT Pilsen

Drones

DJI Zenmuse H20T

The most commonly used for the need of the IZS (Integrated Rescue System). Combination of a total of 4 different sensors. But there are also plans to integrate it into our inspection system. It has an optical ZOOM camera for detailed monitoring, a thermal camera for finding fire hotspots or searching for people, a laser rangefinder for GPS targeting of important points and counting their distance from the UAV, and a wide-angle camera for a general overview.

 

Specification

Object tracking

The undeniable advantage of this sensor is its AI. Thanks to this feature and by combining all the sensors on the paylod, the H20T can track an object almost perfectly. Tracking is done by the ZOOM camera, which scans the object being tracked, and if the object is lost, the camera continues to predict its movement until it finds it again. If after some time it does not see the object again, it starts slowly zooming out until it finds the object again or is at its zoom limit.

Regular inspection

Another feature is periodic scanning used mainly for inspections. Once the object is photographed, the UAV stores the necessary data, i.e., the camera zoom, camera tilt, and GPS position of the UAV. The next time the UAV inspects the same object, it flies to the original position, rotates the camera itself, and produces an image that is exactly the same as the original one. Thanks to this feature, we are then able to observe changes on the object over time.

ZOOM camera

Hybrid zoom 23x
Maximum zoom 200x
Sensor 20MP, 1/1.7" CMOS
Maximum resolution 4K/30 fps
DFOV 66.6°
ISO 100-25600

Thermal camera

Maximum resolution 640x512/30 fps
DFOV 40.6°
Sensor Uncooled VOx Microbolometer
Focal length 13.5mm
Digital ZOOM 8x
Measurement accuracy ≤ 50 mk@f1.0 (NEDT)
Multiple color palettes YES
Temperatures sensed -40°C to 550 °C

Laser rangefinder

Wavelength 905 nm
Measurable distance range 3-1200m
Accuracy +- 0.2m + Dx0.15%

Wide-angle camera

Sensor 1/2.3" CMOS, 12 MP
Maximum resolution Video - FHD/30 fps, Foto - 4K
DFOV 82.9°
Focal length 4.5mm
ISO 100-25600