24.10.2022
Unmanned aerial vehicles (UAVs), or drones, have proven to be a reliable technology for creating maps, plans, and other geodata products.
In autonomous mode, but under the close control of the operator, UAVs are capable of performing various aerial photography options for creating photo and video productions, producing cartographic products and 3D models, monitoring changes and performing various calculations. To perform aerial photography, we do not need an airfield and the complex infrastructure associated with it.
There are several sections of UAV characteristics:
The basic ones include the following parameters:
In autonomous mode, but under the close control of the operator, UAVs are capable of performing various aerial photography options for creating photo and video productions, producing cartographic products and 3D models, monitoring changes and performing various calculations. To perform aerial photography, we do not need an airfield and the complex infrastructure associated with it.
There are several sections of UAV characteristics:
The basic ones include the following parameters:
- Flight autonomy
- The maximum speed of the drone
- Maximum flight height
- Number of motors and propellers (tricopter, quadcopter, hexacopter, etc.)
- Type of control device (own remote control with display and software or connected to a smartphone)
- The presence of additional protective elements, arcs, etc.
Each UAV manufacturer has its own set of parameters and they can all be different. Also, the availability of certain parameters and their maximum value depend on the cost and model of a particular UAV.
Additional UAV characteristics include specialized modules and equipment installed on the drone to achieve a specific goal. In the field of geodesy, land management, aerial photography, laser scanning, the following modules are used, which are installed on UAVs:
Additional UAV characteristics include specialized modules and equipment installed on the drone to achieve a specific goal. In the field of geodesy, land management, aerial photography, laser scanning, the following modules are used, which are installed on UAVs:
- UAV with RTK module
Drones with a built-in RTK positioning system are not the future, but the reality. Let's define what it is and where is it used?
What is RTK? RTK (Real Time Kinematic) is a set of different methods of obtaining the planned coordinates of the territory with centimeter accuracy using a satellite navigation system. This method was first discovered in the mid-90s, but was under development for a long time. Recently, this technology has become increasingly popular in the field of precision land surveying, agriculture, construction, mining, etc.
Why use RTK? RTK is millimeter-accurate positioning.
Drones with built-in RTK enable real-time positioning with millimeter accuracy and minimal metadata error. Currently, most quadcopter manufacturers produce UAVs with a built-in RTK system.
What is RTK? RTK (Real Time Kinematic) is a set of different methods of obtaining the planned coordinates of the territory with centimeter accuracy using a satellite navigation system. This method was first discovered in the mid-90s, but was under development for a long time. Recently, this technology has become increasingly popular in the field of precision land surveying, agriculture, construction, mining, etc.
Why use RTK? RTK is millimeter-accurate positioning.
Drones with built-in RTK enable real-time positioning with millimeter accuracy and minimal metadata error. Currently, most quadcopter manufacturers produce UAVs with a built-in RTK system.
- UAV with LIDAR module
LIDAR is a technology for obtaining and processing information about distant objects using active optical systems that use light reflection and scattering in transparent and translucent media.
LIDAR as a device is, at a minimum, an active optical range finder. Scanning LIDARs in machine vision systems form a two-dimensional or three-dimensional picture of the surrounding space. "Atmospheric" LIDARs are capable not only of determining distances to opaque targets that reflect light, but also of analyzing the properties of a transparent medium that scatters light. A variety of atmospheric LIDARs are Doppler LIDARs, which determine the direction and speed of movement of air flows in different layers of the atmosphere.
Innovative solution from Leica Geosystems: BLK2FLY is the world's first fully integrated UAV with LiDAR technology. This is an independent flying laser scanner with an improved obstacle avoidance function for convenient capture of reality from a height. It is designed to capture exteriors of buildings, structures and the environment, creating a cloud of points while working..
The flying laser scanner is a new solution that is as easy to use as possible, but at the same time it is effective when performing surveying of various complexity. Ease of use, the new BLK scanning system is easy to use and relies on application-based controls.
LIDAR as a device is, at a minimum, an active optical range finder. Scanning LIDARs in machine vision systems form a two-dimensional or three-dimensional picture of the surrounding space. "Atmospheric" LIDARs are capable not only of determining distances to opaque targets that reflect light, but also of analyzing the properties of a transparent medium that scatters light. A variety of atmospheric LIDARs are Doppler LIDARs, which determine the direction and speed of movement of air flows in different layers of the atmosphere.
Innovative solution from Leica Geosystems: BLK2FLY is the world's first fully integrated UAV with LiDAR technology. This is an independent flying laser scanner with an improved obstacle avoidance function for convenient capture of reality from a height. It is designed to capture exteriors of buildings, structures and the environment, creating a cloud of points while working..
The flying laser scanner is a new solution that is as easy to use as possible, but at the same time it is effective when performing surveying of various complexity. Ease of use, the new BLK scanning system is easy to use and relies on application-based controls.
High-quality technology for capturing reality in flight:
During the flight, scanning is performed immediately up and down, in both directions at the same time. The presence of 5 cameras around the entire perimeter, outside the device, allows you to use them to track and color point clouds and visualize them immediately on the tablet for management. During operation, radar sensors are used together with LiDAR to detect obstacles in time and avoid them. This function is especially important for detecting glass structures as obstacles when scanning large modern buildings.
Actual tasks:
During the flight, scanning is performed immediately up and down, in both directions at the same time. The presence of 5 cameras around the entire perimeter, outside the device, allows you to use them to track and color point clouds and visualize them immediately on the tablet for management. During operation, radar sensors are used together with LiDAR to detect obstacles in time and avoid them. This function is especially important for detecting glass structures as obstacles when scanning large modern buildings.
Actual tasks:
- Fast execution of the project thanks to an effective surveying method;
- High accuracy and reliability of measurements;
- Fast transfer of information for processing;
- Location fixation;
- Capturing even the most difficult elements of architecture.
To summarize, how is this technology useful in the field of laser scanning?
The ability to scan in the air while on the move makes it possible to perform work where previously it was simply impossible and saves a lot of time and money!
The ability to scan in the air while on the move makes it possible to perform work where previously it was simply impossible and saves a lot of time and money!
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