Visual survey inspections can be completed without having to send team members onto the roof, improving the safety of workers and unnecessary damage to the building. It is also a great timesaver, as the information can be collected far quicker with a drone than by someone having to climb onto the top of the building to inspect the scene.
Roof surveys and building inspections using drones is a more efficient data collection process for many building and construction projects, compared to traditional ground-based methods. You can choose whether you want to be present and view the imagery from our attached tablet or just want the images sent to you remotely.
Overhead photographs are a fantastic tool for site management and planning. We can provided a simple image for Health, Safety and Emergency planning, or a more comprehensive 2D orthomosaic map capable of accurate site measurements.
Drone mapping solutions allow for autonomous flights to survey a site, obtain a complete aerial mapping of the site, land back at its launch location, and upload its model and data to a secure cloud in a matter of minutes. More information about drone surveys is provided below.
Mapping with drones is done using a technique called âPhotogrammetryâ, the science of making measurements from photographs. This is much more than just taking a photograph as through the software we produce a perfectly flat image that is capable of being used to capture accurate site and building measurements. 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 lower altitude enabling maps with a much higher resolution of detail.
Our drone is equipped with a high resolution 1â Hasselblad sensor and capable of high resolution images. Multiple overlapping photos of the ground below are captured as the drone flies autonomously along a flight path that we specify beforehand. This ensures we don't miss anything and enough image overlap is achieved. Mapping sites of a standard size will result in capturing between 200 to 600 images, depending on whether this is for 2D or 3D mapping output.
This is technically the most complex part of the process, as it requires 200 plus high resolution images to be accurately stitched together and provided a true orthomosaic view. We used industry leading mapping software providers, to do this part of the process. The software enables us to put together a comprehensive survey of land, buildings and infrastructure and presents it in a variety of easy to manage formats. As mentioned above, the best feature is the ability to take accurate measurements of length, area and volume straight from the maps