What is 3D Mapping(Drone Photogrammetry)?
Drone photogrammetry is the process of using unmanned aerial vehicles (UAVs or drones) to capture aerial photographs of an area and then analyzing those images to create accurate measurements, maps, and 3D models.
The UAVs are equipped with cameras and fly over the target area, taking overlapping photographs from different angles and altitudes. The photographs are then processed using specialized software to create a 3D model of the terrain, which can be used to create maps, measure distances, and analyze changes over time.
Drone photogrammetry has numerous applications, including in agriculture, land surveying, urban planning, construction, and environmental monitoring. It is a cost-effective and efficient way to gather data from large areas, and it can be used to generate highly detailed and accurate maps and models.
Benefits of 3D Mapping
1. Design validation and planning
Use drone photogrammetry to set your pre-construction baseline, so that you know exactly what you’ll be working with ahead of time. You can identify any deviations from existing design plans, communicate this to the owners, and reduce the risk of rework — which is one of the costliest areas of any construction project. This visibility also helps you to spot areas that may cause you problems ahead of time, such as utilities or excess materials.
2. Accurate bidding for a project
Instead of basing your initial bid on someone else’s drone data or on outdated survey information, drone photogrammetry software can give you a truly accurate and real-time view. This allows you to bid fairly, so that you don’t end up with an unprofitable project, or being undercut by a competitor with more information about the site. Drone photos may help you see that the project is actually easier than it appears on records available to the public, or can help you stay two steps ahead so you don’t end up biting off more than you can chew.
Psst: Owners are generally impressed by any bidder with access to the technology necessary to keep visibility and control throughout a project and put it into action as early as the bidding stage.
3. Remote monitoring
It can be expensive to send teams out to view and manage a physical site multiple times a week. With drone mapping software and a photogrammetry solution, this can be done remotely, processing the information at the point cloud images appear on-screen only a few hours after photos are taken. This can save serious time and resources over manual progress checks. Regular images by drone allow managers to check on progress, measure earthworks, understand the workers’ quality, and stay two steps ahead of any deviations in design at the earliest stage. As all images are stored on the platform, smart construction management software allows teams to compare the difference between the current site against any historical baseline, identifying progress from one date to another.
4. Safety and security on-site
Injuries on construction sites are not uncommon. In fact, nearly 1 in 5 workplace deaths happen in the construction industry, with a third of these related to falls, slips, and trips. It’s your responsibility as a business to ensure you complete thorough risk assessments and support your teams by reducing the risk as much as possible. Drone mapping is critical to uncover issues ahead of time, such as unstable surfaces or hazards that may make a construction site less safe. There are often difficult-to-reach areas in a construction project, and the ability to remotely map these hard-to-access areas and identify potential safety issues on an ongoing basis is invaluable. Drone mapping can also help with security by tracking assets, including machines and materials.