What is a drone survey?
A drone survey refers to using a drone, or unmanned aerial car (UAV), to seize aerial knowledge with
downward-facing sensors, resembling RGB or multispectral cameras, and LIDAR payloads. Throughout a
drone survey with an RGB digicam, the bottom is photographed a number of instances from completely
different angles, and every picture is tagged with coordinates.
Photogrammetry illustration
Photogrammetry combines pictures that include the identical level on the bottom from a number of
vantage factors to yield detailed 2D and 3D maps.
From this knowledge, photogrammetry software can create geo-referenced orthomosaics, elevation
fashions, or 3D fashions of the venture space. These maps will also be used to extract data resembling
highly-accurate distances or volumetric measurements.
Not like a manned plane or satellite tv for pc imagery, drones can fly at a lot decreased altitude, making
the era of high-resolution, high-accuracy knowledge, a lot quicker, inexpensive, and unbiased of
atmospheric circumstances resembling cloud cowl.
What are the advantages of drones in surveying?
Cut back discipline time and survey prices
Capturing topographic knowledge with a drone is as much as five times faster than with land-based
strategies and requires much less manpower. With PPK geo-tagging, you additionally save time, as
inserting quite a few GCPs is now not vital. You finally ship your survey outcomes quicker and at a
decrease price.
Present correct and exhaustive knowledge
Whole stations solely measure particular person factors. One drone flight produces 1000’s
measurements, which could be represented in several codecs (orthomosaic, level cloud, DTM, DSM,
contour strains, and so forth). Every pixel of the produced map or level of the 3D mannequin comprises
3D geo-data.
Map in any other case inaccessible areas
An aerial mapping drone can take off and fly virtually anyplace. You’re now not restricted by unreachable
areas, unsafe steep slopes, or harsh terrain unsuitable for conventional measuring instruments. You do
not want to shut down highways or prepare tracks. The truth is, you’ll be able to seize knowledge
throughout operation without an organizational overhead.
What is one of the best drones for surveying?
WingtraOne mapping drone
Giant surveying areas, troublesome or steep terrain, nice altitude variations, harsh climate
circumstances, or the absence of flat surfaces required for take-off and touchdown: the WingtraOne
mapping drone can overcome all these challenges of surveying mid- and large-scale initiatives.
Take off and land vertically (VTOL)
Eradicate harmful stomach landings, hand launches, and catapults. In contrast to different fixed-wing
drones, the WingtraOne takes off and lands easily in confined areas, on gravel, between tree stands, or
in mountainous areas.
42 Megapixels / 0.7 cm (0.3 in) GSD
With its full-frame 42 MP Sony digital camera, the WingtraOne can fly at excessive altitudes whereas
nonetheless offering low GSD photographs. This ensures that giant areas might be surveyed quicker with
excessive accuracy. The increased decision additionally yields higher orthomosaic map reconstruction.
Right down to 1 cm (0.4 in) absolute accuracy
Utilizing the PPK choice, it’s attainable to reach down to 1 cm (0.4 in) absolute accuracy, beforehand
solely possible with ground-based survey tools. This requires optimum circumstances, flight above
laborious surfaces, and using well-marked, highly-visible, manually-measured checkpoints and a
well-established based mostly station.