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GPS ready-to-Fly and No-Fly zone drone technologyBog'liq drone4.6 GPS ready-to-Fly and No-Fly zone drone technology
According to the compass calibration, when the drone starts to work, the drone
searches for the position of GPS satellites; when more than six satellites are detected,
the drone becomes “ready-to-fly.” To increase flight safety and prevent accidents in
restricted areas, the “no-fly zone” feature is activated, and flight is blocked. No-fly
zones are divided into two categories, A and B. These regions can be renewed and
changed by software updates. Suppose all controls are in the direction of flight. In
that case, the flight of the drone is provided, and the existing flight telemetry and
the objects or environments that the drone monitors with the camera can be followed
over the mobile device or the control device.
4.7 Creating 3D maps and models
The drone visualization’s hyperspectral, multispectral, LiDAR, and thermal
sensors are created by 3D digital surface models (DSM) of buildings, earth, and
landscape and the land’s digital height maps (DEM). It has become very easy to make
evaluations and plans about agricultural products, flowers, fauna, shrubs, and trees.
Time-of-Flight (ToF) is a precision mapping and 3D imaging technology that
emits a very short pulse of infrared light and measures the rotation time of each
camera sensor pixel. Flash LiDAR time-of-flight cameras offer a variety of solutions
by measuring distances within a captured scene. This way, operations such as object
scanning, obstacle avoidance, tracking and recognizing objects, and measuring
volumes become easier.
Turning images into maps and models is as important as taking high-resolution
drone images. For this, Pix4D Mapper, AutoDesk ReCap, 3DF Zephyr, Agisoft
Photogrammetry software such as PhotoScan and ESRI Drone2Map for 2D/3D map-
ping and imaging software such as ArcGIS, PrecisionHawk, and DroneDeploy are
among the most widely used tools.
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