UAVs for mapping and surveying tasks

15.11.20195min44
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When UAVs and drones appeared on the market, the first who started using them was the agricultural sector and construction.

This is not surprising, given the fact that these branches use large areas for their activities.
UAVs, which are equipped with special cameras and photo cameras, can quickly collect the necessary information, take detailed pictures of the territory and make overflights to analyze the soil and protect the terrain.

For most companies and organizations, related to the agricultural sector, construction, protection of territories, the main criteria in choosing a drone is flight range and duration. As often companies and large manufacturers have large areas and different terrains, it is necessary to fly around more than once and collect information with different parameters.

In addition to mapping and collecting information, UAVs can perform tasks to protect territories from poachers and scammers. Most often, illegal entry into the territory occurs at night, outside working hours, and thus the actions of attackers go unnoticed. Using the infrared cameras, drones allow monitoring the territory for more than 8 hours in the dark and detecting movements at the facility, while quickly transmitting information to the control point.

Mapping with drones is done using a technique called Photogrammetry. Photogrammetry is the science of making measurements from photographs. The output of this is normally a map, measurement or 3D model of a real-world object or scene. Many of the maps we use today are created using photogrammetry and images taken from aircraft.
Mapping with drones is very similar to this, the main difference being the low altitude a UAV can fly, therefore capturing higher quality images.

Use cases:

– Land surveying
Digital agriculture is another market where drone technology is applied more and more. Specialized mapping software companies build solutions using drones, drone imagery and photogrammetry techniques that help farmers manage and monitor their crops. For example, timely a high-resolution drone maps help farmers to scout crop issues, whereas vegetation index maps help them to understand a plant’s stress.

– Mining & aggregates
For years, mapping and surveying companies had to rely on airborne photography when mapping open-pit mines. But airborne photography proved to be expensive, as airborne mapping projects usually cover large areas in order to be profitable. Drones proved to be a great alternative for small-scale mapping areas such as open-pit mines. In addition to this, they are able to map areas that are unsafe and inaccessible for humans.

– Emergency Management
When disaster strikes, quick and accurate information is vital for emergency management to effectively respond, especially when the disaster covers a large area. Using drone photogrammetry, officials can determine the most damaged areas of a disaster (think flood or hurricane). With this data, they can effectively distribute their resources for a timely response.

– Construction
Construction sites can be managed and improved by using drones. Safety is always a big issue at these sites: the good news is that using drones instead of construction workers for taking measurements or other activities can help avoiding casualties.

– Infrastructure and asset management
Carrying out mapping work, using drones can save time and money for the company, since the data is received in a short time and processing also takes less time, unlike standard mapping methods.

UAV Raybird-3 can fly more than 24 hours and overcome more than 2000 km, which allows to cover extended territories and collect data with high accuracy.

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